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    Tytuł:
    Cytotoxicity and inhibitory properties against topoisomerase II of doxorubicin and its formamidine derivatives
    Autorzy:
    Kik, Krzysztof
    Studzian, Kazimierz
    Wąsowska-Łukawska, Małgorzata
    Oszczapowicz, Irena
    Szmigiero, Leszek
    Powiązania:
    https://bibliotekanauki.pl/articles/1040646.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    formamidinodoxorubicins
    doxorubicin
    topoisomerase II
    Opis:
    This work was undertaken to compare cytotoxicity, DNA damaging properties and effect on DNA cleavage by topoisomerase II of the anthracycline drug doxorubicin (DOX) and its two derivatives with a formamidino group containing a cyclic amine moiety such as morpholine (DOXM) or hexamethyleneimine (DOXH). The tetrazolium dye colorimetric assay was used to determine the cytotoxic activity of anthracyclines toward L1210 leukemia cells. DNA damage was measured by alkaline elution technique. The effect of anthracyclines on DNA cleavage was studied in a cell-free system containing supercoiled pBR322 DNA and purified human topoisomerase II. The cytotoxicity data and the results of studies on the mechanism of DNA break formation by anthracyclines at the cellular level and in the cell-free system showed that the presence of the formamidino group in the doxorubicin molecule reduced its ability to stimulate DNA cleavage by DNA topoisomerase II. Conclusion: DNA topoisomerase II is not a primary cellular target for DOXM or DOXH. An advantageous feature of formamidinoanthracyclines is their mechanism of cytotoxic action which is not related to the inhibition of DNA topoisomerase II. Therefore this class of anthracyclines seems to be a good source for selection of an anticancer drug directed toward cancer cells with the developed multidrug resistance attributed to the presence of altered DNA topoisomerase II.
    Źródło:
    Acta Biochimica Polonica; 2009, 56, 1; 135-142
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficacy and safety of liposomal doxorubicin in a patient treated for metastatic breast cancer
    Autorzy:
    Streb, Joanna
    Słowik, Agnieszka
    Powiązania:
    https://bibliotekanauki.pl/articles/1065206.pdf
    Data publikacji:
    2015
    Wydawca:
    Medical Education
    Tematy:
    breast cancer
    cardiotoxicity
    liposomal doxorubicin
    Opis:
    Liposomal doxorubicin is a newer form of chemotherapeutic agents that, due to its own special properties, preferably accumulates in cancer tissue. On the other hand, it shows lower affinity to cardiomyocytes and in this way is less cardiotoxic. As a result of that, there is the possibility to use liposomal form of doxorubicin until disease progression or chemotherapy intolerance in palliative setting, without treatment cessation after reaching the maximum cumulative dose of conventional doxorubicin. In this article we describe the case of a female patient diagnosed with breast cancer who was primary treated with adjuvant treatment, including chemotherapy and in whom a disease recurrence occurred after seven years of observation. As a primary palliative treatment the patient received chemotherapy based on liposomal doxorubicin and cyclofosphamide with a very good tolerance. The initial response was partial remission in lungs and in mediastinal lymph nodes. During the whole course of therapy there were no pathological changes in electrocardiogram, no signs and no symptoms of congestive heart failure, and the left ventricular ejection fraction was within normal limits.
    Źródło:
    OncoReview; 2015, 5, 2; A67-70
    2450-6125
    Pojawia się w:
    OncoReview
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biodistribution of doxorubicin-loaded succinoyl chitosan nanoparticles in mice injected via intravenous or intranasal routes
    Autorzy:
    Zubareva, Anastasia
    Shcherbinina, Tatyana
    Varlamov, Valery P.
    Svirshchevskaya, Elena
    Powiązania:
    https://bibliotekanauki.pl/articles/1035197.pdf
    Data publikacji:
    2014
    Wydawca:
    Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
    Tematy:
    biodistribution
    doxorubicin
    succinoyl chitosan nanoparticles
    Opis:
    Chitosan (Chi) is an extremely promising natural biopolymer with remarkable potency for the development of drug and vaccine delivery nanosystems. Various Chi derivatives are used to form nanoparticles (NPs) with unique properties. However, the efficacy of the therapy delivered by Chi NPs depends significantly on NP biodistribution in the body. The aim of this study was the analysis of biodistribution of NPs formed by succinoyl Chi and loaded with doxorubicin (SCNPDOX). We compared the distribution of free DOX and SCNP-DOX after intravenous (i.v.) and intranasal (i.n.) delivery into tumour-bearing mice. Distribution of DOX and SCNP-DOX was comparable after i.v. injection while they differed significantly after i.n. instillation.
    Źródło:
    Progress on Chemistry and Application of Chitin and its Derivatives; 2014, 19; 145-154
    1896-5644
    Pojawia się w:
    Progress on Chemistry and Application of Chitin and its Derivatives
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Liposomal doxorubicin in first line metastatic HER-2-positive breast cancer for prevention the cardiotoxicity
    Autorzy:
    Chmielowska, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/1065040.pdf
    Data publikacji:
    2015
    Wydawca:
    Medical Education
    Tematy:
    HER-2 overexpression
    cardiotoxicity
    liposomal doxorubicin
    Opis:
    We describe a 62 year old female with metastatic HER-2-positive breast cancer, and with independent cardiovascular comorbidities. She was earlier treated with J131 therapy due to thyroid toxicity. She developed grade 2 mitral and tricuspid valvular insufficiency as a result of uncontrolled hypertension. In 2013, the patient was diagnosed with luminal B2 breast cancer with liver and bone metastases, and a large infiltration of the left breast together with the surrounding soft tissue. She was treated with liposomal doxorubicin and cyclophosphamide, with the dose of anthracycline slightly reduced to 50 mg/m2 because of the elevated liver enzymes. She was in complete remission during treatment, without any cardiac or hematologic toxicity. The treatment was prolonged to eight cycles until the liver tests returned to normal. The cumulative dose of liposomal doxorubicin amounted to 400 mg/m2 (with the maximum recommended dose of 600 mg/m2). We decided to administer the liposomal form of doxorubicin, which is less cardiotoxic than conventional doxorubicin, as first-line treatment in order to prevent cardiotoxicity in a patient who is a candidate for another cardiotoxic therapy involving trastuzumab in the future. The patient’s disease progressed 10 months following the completion of first-line therapy. There are no cardiologic contraindications to trastuzumab and there are no signs of liposomal doxorubicin-related cardiotoxicity or deterioration of the valvular insufficiency.
    Źródło:
    OncoReview; 2015, 5, 1; A11-A15
    2450-6125
    Pojawia się w:
    OncoReview
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aromatic indolinic aminoxyls as antioxidants in cardiac sarcoplasmic reticulum lipid and protein oxidation.
    Autorzy:
    Kulawiak-Gałąska, Dorota
    Woźniak, Michał
    Greci, Lucedio
    Powiązania:
    https://bibliotekanauki.pl/articles/1043805.pdf
    Data publikacji:
    2002
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    doxorubicin
    protein and lipid oxidation
    indolinic aminoxyl
    Opis:
    The results presented demonstrate the influence of aromatic indolinic aminoxyls: 1,2-dihydro-2-ethyl-2-phenyl-3H-indole-3-phenylimino-1-oxyl (IA-C2) and 1,2-dihydro-2-octadecyl-2-phenyl-3H-indole-3-phenylimino-1-oxyl (IA-C18) on oxidation of lipids and proteins of cardiac sarcoplasmic reticulum membranes. We have used doxorubicin and t-butyl hydroperoxide as agents inducing oxidative stress in isolated rat cardiac sarcoplasmic reticulum membrane system. Carbonyl groups were measured as the end product of membrane protein oxidation, and thiobarbituric acid reactive substances were assessed as a marker of lipid peroxidation. Inhibition of peroxidation of certain membrane components depends on the length of acyl chain. Aminoxyl IA-C2 inhibits the lipid peroxidation process while IA-C18 is an efficient protector against protein oxidation.
    Źródło:
    Acta Biochimica Polonica; 2002, 49, 1; 43-49
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Resistance of gloves and protective clothing materials to permeation of cytostatic solutions
    Autorzy:
    Krzemińska, Sylwia
    Pośniak, Małgorzata
    Szewczyńska, Małgorzata
    Powiązania:
    https://bibliotekanauki.pl/articles/2159915.pdf
    Data publikacji:
    2017-12-21
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    permeation
    cytostatic
    protective materials
    docetaxel
    fluorouracil
    Doxorubicin
    Opis:
    Objectives The objective of the work was to determine the resistance of selected protective clothing and glove materials to permeation of cytostatics such as docetaxel, fluorouracil, and doxorubicin. Material and Methods The following glove materials were used: natural rubber latex (code A), acrylonitrile-butadiene rubber (code B) and chloroprene rubber (code C). In addition, we tested a layered material composed of a non-woven polyester (PES), a polypropylene (PP) film, and a non-woven PP used for protective coats (code D). The cytostatics were analyzed by liquid chromatography with diode array detection. The tested samples were placed in a purpose-built permeation cell modified to be different from that specified in the standard EN 6529:2001. Results The tested materials were characterized by good resistance to solutions containing 2 out of the 3 selected cytostatics: doxorubicin and 5-fluorouracil, as indicated by a breakthrough time of over 480 min. Equally high resistance to permeation of the third cytostatic (docetaxel) was exhibited by natural rubber latex, acrylonitrile-butadiene rubber, and chloroprene rubber. However, docetaxel permeated much more readily through the clothing layered material, compromising its barrier properties. Conclusions It was found that the presence of additional components in cytostatic preparations accelerated permeation through material samples, thus deteriorating their barrier properties. Int J Occup Med Environ Health 2018;31(3):341–350
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2018, 31, 3; 341-350
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modulation of Doxorubicin Cytotoxicity by Isoliquiritin and Cynarin Combination on Different Cancer Cell Lines
    Autorzy:
    Al-AdamI, Salat G.
    Al-Khateeb, EKBAL H.
    NUMAN, NAWFAL A.
    ABBAS, Mannal M.
    Tawfiq, FATIMA A.
    Shakya, Ashok K.
    Powiązania:
    https://bibliotekanauki.pl/articles/895633.pdf
    Data publikacji:
    2020-06-29
    Wydawca:
    Polskie Towarzystwo Farmaceutyczne
    Tematy:
    cytotoxicity
    doxorubicin
    cancer cells
    Modulation
    Cynarin
    Isoliquiritin
    Opis:
    Natural polyphenolic compounds produced by plant exhibit many pharmacological effects including antioxidant, chemopreventive as well as anticancer properties. This study was conducted to investigate the effect of cynarin ( from Artichoke, Cynara scolymus) and isoliquiritin (from Licorice, Glycyrrhiza uralensis) on doxorubicin (positive control) cytotoxicity in different cell lines including normal (Fibroblasts MCR-5 and Myoblasts H9c2) and cancer (colorectal HCT-116 and hepatocellular HEP-G2) cell lines. The cytotoxic effect of doxorubicin, isoliquiritin and cynarin alone or in different combination was studied on cancer cell lines as well as normal cell lines. The results obtained indicated that both cynarin and isoliquiritin enhance the cytotoxicity of doxorubicin. Both cynarin and isoliquiritin also reduce the cardiotoxicity of doxorubicin on normal cardiac cell lines. The combination of the three compounds (cynarin, isoliquiritin and doxorubicin) result in decrease the cytotoxicity of doxorubicin, which may indicate the presence of interaction and/or antagonism effect between cynarin and isoliquiritin. Cynarin was found to enhance the growth of (HCT-116 and HEP-G2) this might suggest avoiding use of Artichoke in subjects’ susceptibility for these cancers. All results were evaluated using statistical path and showed significant findings. The mechanism of enhanced doxorubicin’s cytotoxicity by cynarin or isoliquiritin also require further investigation to explain the increasing and/or the decreasing effect of these polyphenolic compounds on cytotoxicity of doxorubicin. The current finding can help to start with safe minimum dose of two or three combination of compounds in the context of clinical trials and practice.
    Źródło:
    Acta Poloniae Pharmaceutica - Drug Research; 2020, 77, 3; 475-484
    0001-6837
    2353-5288
    Pojawia się w:
    Acta Poloniae Pharmaceutica - Drug Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Combination of combretastatin A4 phosphate and doxorubicin-containing liposomes affects growth of B16-F10 tumors
    Autorzy:
    Mitrus, Iwona
    Sochanik, Aleksander
    Cichoń, Tomasz
    Szala, Stanisław
    Powiązania:
    https://bibliotekanauki.pl/articles/1040651.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    CA4P
    doxorubicin
    liposomes
    combined therapy
    Opis:
    The study aimed to check the effectiveness of anticancer therapy combining a vascular-disruptive drug (combretastatin phosphate, CA4P) and a liposomal formulation of a chemotherapeutic (doxorubicin). CA4P was synthesized in our laboratory according to a previously described procedure. The antivascular drug and long-circulating doxorubicin-loaded liposomes were used to treat B16-F10 murine melanoma experimental tumors. Seventy-four hours after drug administration, a decrease in the number of tumor blood vessels was apparent and necrotic areas within tumors were visible. Combination therapy consisting of alternate administrations of CA4P and liposomal doxorubicin yielded greater inhibition of tumor growth than monotherapies alone. The best therapeutic results were obtained with the antivascular drug administered intratumorally every second day at 50 mg/kg body mass. In the case of combined therapy, the best results were obtained when the vascular-disruptive agent (CA4P) and the antineoplastic agent (liposomal doxorubicin) were administered in alternation.
    Źródło:
    Acta Biochimica Polonica; 2009, 56, 1; 161-165
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficacy and safety of non-pegylated liposomal doxorubicin in metastatic breast cancer therapy
    Autorzy:
    Wójcik, Elżbieta
    Kufel-Grabowska, Joanna
    Gierba-Tomczyk, Joanna
    Powiązania:
    https://bibliotekanauki.pl/articles/1062503.pdf
    Data publikacji:
    2017
    Wydawca:
    Medical Education
    Tematy:
    breast cancer
    non-pegylated liposomal doxorubicin
    treatment
    Opis:
    Breast cancer is the most frequently diagnosed female cancer in Poland (over 17,500 women). Anthracyclines have become one of the most important drugs in breast cancer systemic treatment. In the treatment of metastatic disease combination chemotherapy with doxorubicin provides the objective response rate of 60–85%, and the median time of progression-free survival is about 12 months. Non-pegylated liposomal doxorubicin (NPLD) in combination with cyclophosphamide is associated with a lower risk of cardiotoxicity, higher efficacy and more favourable toxicity profile as compared with conventional anthracycline regimes. Two cases of females patients treated with NPLD described in this article demonstrate the importance of the choice of chemotherapy, professional monitoring, early detection and treatment of adverse effects. Non-pegylated liposomal doxorubicin ordained in systemic treatment of stage IV breast cancer prolongs survival and enhances the quality of life. It is a reasonable option for palliative therapy.
    Źródło:
    OncoReview; 2017, 7, 4; 162-167
    2450-6125
    Pojawia się w:
    OncoReview
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Adriamycin cardiomyopathy with congestive heart failure, cardiogenic shock and emergency heart transplant: 30-year follow up
    Autorzy:
    Mursleen, Asma
    Harrison, Eric E.
    Powiązania:
    https://bibliotekanauki.pl/articles/1065074.pdf
    Data publikacji:
    2015
    Wydawca:
    Medical Education
    Tematy:
    doxorubicin cardiomyopathy
    heart transplant survivor
    heart transplantation
    Opis:
    Doxorubicin chemotherapeutic agent is widely utilized for many types of cancers since the late 1960s. Cardiomyopathy is a well-known side effect of doxorubicin often limiting its use. In many cases doxorubicin cardiomyopathy can lead to end stage cardiac failure requiring heart transplantation. The quality of life of heart transplant patients is exceptional with most patients being able to continue normal activities following recovery. There has been significant advancement in cardiac transplantation since it was first attempted in 1967 in Cape Town, South Africa. Drugs such as cyclosporine played an important role in preventing graft failure and prolonging patient survival. Cardiac transplant can extend a patients’ life by over a decade. The patient in this case, Mr. Glen Frank Spurling, has survived 30 years following his cardiac transplant surgery. In this article an overview of doxorubicin cardiotoxicity, cardiac transplantation, and an interview with Mr. Glen Frank Spurling is presented.
    Źródło:
    OncoReview; 2015, 5, 1; A5-A10
    2450-6125
    Pojawia się w:
    OncoReview
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Methylxanthines (caffeine, pentoxifylline and theophylline) decrease the mutagenic effect of daunomycin, doxorubicin and mitoxantrone
    Autorzy:
    Piosik, Jacek
    Gwizdek-Wiśniewska, Anna
    Ulanowska, Katarzyna
    Ochociński, Jakub
    Czyż, Agata
    Węgrzyn, Grzegorz
    Powiązania:
    https://bibliotekanauki.pl/articles/1041344.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    Vibrio harveyi mutagenicity assay
    mitoxantrone
    doxorubicin
    daunomycin
    xanthines
    Opis:
    Previously performed experiments showed that methylxanthines, especially caffeine, may protect cells against cytostatic or cytotoxic effects of several aromatic compounds. One of the proposed mechanisms of this protection is based on stacking interactions between π electron systems of polycyclic aromatic molecules. In this work, we demonstrate that caffeine and other methylxanthines - pentoxifylline and theophylline - significantly decrease mutagenicity of the anticancer aromatic drugs daunomycin, doxorubicin and mitoxantrone. The spectrophotometric titration of these aromatic compounds by methylxanthines indicated formation of mixed aggregates. The concentrations of free active forms of the drugs decreased when the concentrations of methylxanthines increased in the mixture. Therefore, likely methylxanthines may play a role of scavengers of the free active forms of daunomycin, doxorubicin and mitoxantrone.
    Źródło:
    Acta Biochimica Polonica; 2005, 52, 4; 923-926
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Opracowanie bioresorbowalnych wielowarstwowych nośników polimerowych do kontrolowanego uwalniania doksorubicyny
    Elaboration of bioresorbable multilayered polymeric carriers for controlled doxorubicin release
    Autorzy:
    Stokłosa, K.
    Kasperczyk, J.
    Dobrzyński, P.
    Smola, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/284022.pdf
    Data publikacji:
    2010
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    polimery
    doksorubicyna
    bioresorbowalne polimery
    polymers
    doxorubicin
    bioresorbable polymers
    Opis:
    W pracy przedstawiono wyniki badań uwalniania i degradacji in vitro do sztucznego płynu mózgowo- rdzeniowego (aCFS) dla wielowarstwowych matryc polimerowych zawierających doksorubicynę jako substancję leczniczą. Proponowany system terapeutyczny zbudowany jest z trzech warstw, tj. 2 zewnętrznych warstw kopolimeru glikolidu z ε-kaprolaktonem i 1 wewnętrznej warstwy kopolimeru glikolidu z D,L-laktydem z 10% zawartością cytostatyka. System wielowarstwowy utworzono przez kompresję w określonych warunkach: temperatury, nacisku i czasu. Postęp degradacji został potwierdzony przy pomocy zmian mikrostruktury łańcuchów metodą spektroskopii magnetycznego rezonansu jądrowego. Kinetykę uwalniania doksorubicyny z matryc jednowarstwowych i trójwarstwowych obserwowano przy pomocy spektroskopii UV-VIS. Zastosowanie trójwarstwowej matrycy pozwoliło na zmniejszenie początkowego wyrzutu leku z powierzchni nośnika polimerowego a tym samym zmniejszenie inhibicji uwalniania do 100 godzin eksperymentu.
    In this work the results of in vitro release and degradation to artificial cerebrospinal fluid solution (aCFS) from multi-layered polymeric matrices containing cytostatic drug were performed.. The proposed therapeutic system was constructed from three layers: the glycolide/caprolactone copolymer were used in two external layers and glycolide/D,L-lactide copolymer in internal layer containing 10-weight % of cytostatic agent.. Three-layered drug release system was made by compression at suitable conditions of time, temperature and pressure. The degradation of three-layered polymeric matrices was confirmed on the basis of changes in copolymer chain microstructure using high resolution NMR spectroscopy. Kinetics of doxorubicin release from mono- and three-layered matrices was observed by UV-VIS spectroscopy. Application of three-layered matrix may be used to reduction of burst effect from polymeric carrier surface and to reduction of inhibition effect of doxorubicin release observed in first stage from mono-layered matrix.
    Źródło:
    Engineering of Biomaterials; 2010, 13, no. 99-101; 64-67
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Anticancer activity of some new series of 2-(substituted)amino-1,3-thiazole derivatives
    Autorzy:
    Bakare, Safyah B.
    Powiązania:
    https://bibliotekanauki.pl/articles/780055.pdf
    Data publikacji:
    2019
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    Thiazole
    Anticancer
    Cell Cycle Analysis
    Annexin V
    FITC
    Doxorubicin
    Opis:
    A series of thiazole derivatives were synthesized and structurally elucidated by IR, 1H NMR, 13C NMR, mass and elemental analyses. The prepared compounds were screened for their cytotoxic activity against Leukemia HL-60 cell line. Compound 4b was considered as the most promising antitumor candidate among the tested compounds. Mechanism of action of compound 4b evaluated by flow cytometric assay revealed cell cycle arrest at G2/M phase and pre-G1 apoptosis. The ratio of apoptosis was also determined. Moreover, compound 4b increased the concentration of caspase 3 by 4 fold more than untreated control.
    Źródło:
    Polish Journal of Chemical Technology; 2019, 21, 3; 19-25
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sarcomatoid renal-cell carcinoma: treatment strategy, review of the literature and a case report
    Autorzy:
    Gębara-Puchniarz, Agnieszka
    Hryciuk, Beata
    Stec, Rafał
    Szczylik, Cezary
    Grala, Bartłomiej
    Kozłowski, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/articles/1064804.pdf
    Data publikacji:
    2016
    Wydawca:
    Medical Education
    Tematy:
    chemotherapy
    doxorubicin
    gemcitabine
    sarcomatoid renal-cell carcinoma
    surgical treatment
    Opis:
    Introduction: Sarcomatoid renal-cell carcinoma is a very rare cancer characterised with aggressive course of disease and poor prognosis. At present there are no standards of care for this histologic subtype of renal cell carcinoma resistant to various forms of systemic treatment. Methods: The study describes a case of 58 year old woman after left nephrectomy for clear cell carcinoma with sarcomatoid component and after resection of right-kidney tumour for synchronous clear cell carcinoma who received first-line bevacizumab and temsirolimus under the clinical trial, and then second-line chemotherapy based on gemcitabine and doxorubicin and ifosfamide-based third-line chemotherapy. The patient underwent pulmonary metastasectomy twice, and once a metastasectomy for liver metastases. Conclusions: Surgery (including metastases treatment) followed by the systemic chemotherapy seems to be correct option of treatment in patients with renal cell carcinoma with sarcomatoid features. The development of optimum method of systemic treatment requires further prospective randomised trials.
    Źródło:
    OncoReview; 2016, 6, 4; A184-187
    2450-6125
    Pojawia się w:
    OncoReview
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Administration of liposomal doxorubicin in patients with metastatic breast cancer and significant concomitant cardiovascular conditions
    Autorzy:
    Bryjak, Agnieszka
    Powiązania:
    https://bibliotekanauki.pl/articles/773565.pdf
    Data publikacji:
    2014
    Wydawca:
    Medical Education
    Tematy:
    NLPD
    cardiotoxicity
    conventional anthracyclines
    liposomal doxorubicin
    metastatic breast cancer
    Opis:
    A frequent dilemma faced by an oncologist about to take decision on a chemotherapeutic regime for patients with metastatic breast cancer is how to maintain balance between the expected treatment efficacy and predictable adverse events. In the case of anthracyclines what is problematic is their significant cardiotoxicity, in particular with reference to patients previously treated with them as part of adjuvant therapy. A relatively new method is replacement of conventional doxorubicin with its non-pegylated form, encapsulated in liposomes, which is capable of minimizing the side effects without compromising its therapeutic index. The present article discusses three cases of patients treated with non-pegylated liposomal doxorubicin (NPLD) as first-line chemotherapy administered for metastatic breast cancer. In all three cases considerable clinical improvement was observed, involving remission of pathological lesions and good quality of life.
    Źródło:
    OncoReview; 2014, 4, 4; A148-A154
    2450-6125
    Pojawia się w:
    OncoReview
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Non-pegylated liposomal doxorubicin plus capecitabine as first-line treatment in metastatic breast cancer
    Autorzy:
    Plecka, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/1064811.pdf
    Data publikacji:
    2016
    Wydawca:
    Medical Education
    Tematy:
    breast cancer
    chemotherapy
    new regimen
    non-pegylated liposomal doxorubicin
    Opis:
    Purpose: To determine the toxicity and efficacy profile of non-pegylated doxorubicin in combination with capecitabine administered according to LipAX regimen. Materials and methods: The analysis included 5 female patients undergoing first-line treatment for metastatic breast cancer. Patients received non-pegylated doxorubicin intravenously and oral capecitabine at usual doses used for monotherapy, until disease progression or unacceptable toxicity. Results: Patients received a total of 26 complete treatment cycles according to LipAX regimen. During treatment, 15 toxicities occurred, including 7 adverse events with grade 3 severity. Only two haematological toxicities were observed, and the other 13 were of a non-haematological nature. Only one patient experienced no adverse events. Apart from symptomatic treatment, the capecitabine dose was reduced twice and the non-pegylated doxorubicin once. Positive clinical outcomes were observed in 4 patients, and disease progression was reported in the case of 1 patient in the course of the treatment. The median time to disease progression was 10.4 months, and the median overall survival was 34.2 months. During the 54-month follow-up, 4 of the patients died. The surviving patient continues treatment. Conclusions: Therapy according to the LipAX regimen was relatively well tolerated, however, since the majority of patients discontinued treatment due to adverse events, and not disease progression, an adequate reduction in the cytostatic doses should be considered. The use of the LipAX regimen may contribute to the achievement of long-term remission in some patients, a fact that encourages further studies on this form of therapy.
    Źródło:
    OncoReview; 2016, 6, 4; A193-198
    2450-6125
    Pojawia się w:
    OncoReview
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Role of sulfide anion in the development of chronic alcoholic hepatitis under the conditions of modulation of adenosine monophosphate kinase – a correlational study
    Autorzy:
    Mykytenko, Andrii
    Akimov, Oleh
    Shevchenko, Oleksandr
    Neporada, Karine
    Powiązania:
    https://bibliotekanauki.pl/articles/29519432.pdf
    Data publikacji:
    2023-09-30
    Wydawca:
    Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
    Tematy:
    AMPK
    chronic alcohol hepatitis
    doxorubicin
    liver
    phenformin
    sulfide anion
    Opis:
    Introduction and aim. Hydrogen sulfide (H2S) has attracted the attention of researchers as a novel signaling molecule that affects vascular metabolism, immune function, stress and inflammation. It plays an important role in pathophysiological disorders under the conditions of the development of obesity, diabetes, non-alcoholic fatty liver disease and cardiovascular diseases. The purpose of this work is to establish correlation ratios of H2S concentration with markers of oxidative-nitrosative stress and extracellular matrix metabolism of the liver during chronic alcoholic hepatitis modeling and AMPK modulation by phenformin and doxorubicin. Material and methods. The experiments were performed on 36 white, sexually mature male Wistar rats, weighing 180-220 g. Alcoholic hepatitis was modelled by alcohol administration, on the background of alcoholic hepatitis animals received phenformin orally at a dose of 10 mg/kg or doxorubicin at a dose of 1.25 mg/kg intraperitoneally. Statistical processing of the results of biochemical studies was carried out using the non-parametric method of Spearman to determine correlations. Results. H2S during alcoholic hepatitis inversely proportionally strongly correlates with the concentration of nitrites, oxyproline and arginase activity. Phenformin administration during alcoholic hepatitis leads to formation of inversely proportionally strongly correlation of H2S with the production of superoxide anion radical, the concentration of malondialdehyde, activities of constitutive NO-synthases, nitrite reductases, nitrate reductases, and arginase. Doxorubicin administration during alcoholic hepatitis leads to formation of directly proportional strongly correlation of H2S with the activity of constitutive NO-synthases, nitrite reductases, nitrate reductases. Conclusion. Administration of phenformin or doxorubicin expands correlations between H2S and indicators of oxidative-nitrosative stress.
    Źródło:
    European Journal of Clinical and Experimental Medicine; 2023, 3; 567-575
    2544-2406
    2544-1361
    Pojawia się w:
    European Journal of Clinical and Experimental Medicine
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Combined effects of doxorubicin and STI571 on growth, differentiation and apoptosis of CML cell line K562
    Autorzy:
    Jakubowska, Justyna
    Stasiak, Marta
    Szulawska, Agata
    Bednarek, Andrzej
    Czyz, Malgorzata
    Powiązania:
    https://bibliotekanauki.pl/articles/1040880.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    STI571
    doxorubicin
    anticancer drugs
    K562 cells
    apoptosis
    differentiation
    Opis:
    STI571 (imatinib mesylate; Gleevec®) is an inhibitor that targets the tyrosine kinase activity of Bcr-Abl present in chronic myelogenous leukemia (CML) cells. Some preclinical studies have demonstrated that the combination of STI571 with chemotherapeutic drugs results in enhanced toxicity in Bcr-Abl-positive leukemias. We investigated the potential benefit of using STI571 to down-regulate Bcr-Abl activity for the enhancement of doxorubicin anti-proliferative action in K562 cell line derived from blast crisis of CML. At low concentrations of both drugs (40 nM doxorubicin combined with STI571 in the range of 100-150 nM), the antiproliferative effects were mainly due to cellular differentiation as assessed by benzidine staining for hemoglobin synthesis level and real-time PCR for γ-globin expression. Higher concentrations of STI571 used in combinations with doxorubicin caused mainly apoptosis as shown by DNA degradation and nuclear fragmentation visualized by fluorescence microscopy after DAPI staining, changes in cell morphology observed after Giemza-May Grünwald staining and cellular membrane organization estimated by flow cytometry after Annexin V staining. As compared with either drug alone, cotreatment with STI571 and DOX induced stronger cellular responses. A low concentration of STI571 in combination with a low concentration of DOX might be tested as an alternative approach to increasing the efficacy of chemotherapy against CML.
    Źródło:
    Acta Biochimica Polonica; 2007, 54, 4; 839-846
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Therapy with liposomal doxorubicin in patients with advanced breast cancer after treatment with classical doxorubicin
    Autorzy:
    Kufel-Grabowska, Joanna
    Powiązania:
    https://bibliotekanauki.pl/articles/1065267.pdf
    Data publikacji:
    2015
    Wydawca:
    Medical Education
    Tematy:
    breast cancer
    complications of oncological therapy
    non-pegylated liposomal doxorubicin
    Opis:
    Breast cancer is the most common female cancer in the world and in Poland. The improvement of diagnostic and therapeutic methods has led to patients’ longer life expectancy. It has also made breast cancer a chronic disease, increasing the risk of late side effects of oncological therapy. More cardiovascular diseases are diagnose in patients over 65 with an oncological history than in those without it and therefore much effort must be made to maximise effectiveness of the therapy with as few side effects as possible. The article presents two breast cancer patients treated with big doses of liposomal doxorubicin with a good response and almost no side effects.
    Źródło:
    OncoReview; 2015, 5, 3; A103-108
    2450-6125
    Pojawia się w:
    OncoReview
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Off-label drug use in breast cancer therapy
    Autorzy:
    Jankowski, Tomasz
    Urbaniak, Monika
    Powiązania:
    https://bibliotekanauki.pl/articles/773466.pdf
    Data publikacji:
    2017
    Wydawca:
    Medical Education
    Tematy:
    breast cancer
    capecitabine
    chemotherapy
    liposomal doxorubicin
    metronomic vinorelbine
    off-label
    Opis:
    Breast cancer is one of the most common malignancies across the world, including Poland. Chemotherapy plays an important part in the treatment of the disease. Most of the available chemotherapy drugs and regimens have undergone randomized clinical studies and have been registered for that specific indication. However, a number of drugs are used in an off-label manner, i.e. outside the officially approved product specifications. The paper discusses the use of several off-label therapies in breast cancer in order to demonstrate that such treatment may be well-grounded and indeed turns out beneficial in many cases. It describes the use of liposomal doxorubicin in pre- and post-operative treatment, capecitabine for incomplete efficacy of preoperative treatment, and the administration of metronomic vinorelbine. Moreover, the paper is aimed at demonstrating the legal basis and the principles of marketing authorization of off-label drug use.
    Źródło:
    OncoReview; 2017, 7, 2; 83-87
    2450-6125
    Pojawia się w:
    OncoReview
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of genes involved in response to doxorubicin and a GD2 ganglioside-specific 14G2a monoclonal antibody in IMR-32 human neuroblastoma cells
    Autorzy:
    Horwacik, Irena
    Durbas, Małgorzata
    Boratyn, Elżbieta
    Sawicka, Anna
    Węgrzyn, Paulina
    Krzanik, Sylwia
    Górka, Anna
    Drożniak, Joanna
    Augustyniak, Ewa
    Kowalczyk, Aleksandra
    Rokita, Hanna
    Powiązania:
    https://bibliotekanauki.pl/articles/1038977.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    doxorubicin
    GD2 ganglioside
    microarray
    14G2a
    neuroblastoma
    mimitin
    Opis:
    Neuroblastoma is the most common extra-cranial solid tumor of childhood and it is characterized by the presence of a glycosphingolipid, GD2 ganglioside. Monoclonal antibodies targeting the antigen are currently tested in clinical trials. Additionally, several research groups reported results revealing that ganglioside-specific antibodies can affect cellular signaling and cause direct cytotoxicity against tumor cells. To shed more light on gene expression signatures of tumor cells, we used microarrays to analyze changes of transcriptome in IMR-32 human neuroblastoma cell cultures treated with doxorubicin (DOX) or a mouse monoclonal antibody binding to GD2 ganglioside 14G2a (mAb) for 24 h. The obtained results highlight that disparate cellular pathways are regulated by doxorubicin and 14G2a. Next, we used RT-PCR to verify mRNA levels of selected DOX-responsive genes such as RPS27L, PPM1D, SESN1, CDKN1A, TNFSF10B, and 14G2a-responsive genes such as SVIL, JUN, RASSF6, TLX2, ID1. Then, we applied western blot and analyzed levels of RPS27L, PPM1D, sestrin 1 proteins after DOX-treatment. Additionally, we aimed to measure effects of doxorubicin and topotecan (TPT) and 14G2a on expression of a novel human NDUFAF2 gene encoding for mimitin protein (MYC-induced mitochondrial protein) and correlate it with expression of the MYCN gene. We showed that expression of both genes was concomitantly decreased in the 14G2a-treated IMR-32 cells after 24 h and 48 h. Our results extend knowledge on gene expression profiles after application of DOX and 14G2a in our model and reveal promising candidates for further research aimed at finding novel anti-neuroblastoma targets.
    Źródło:
    Acta Biochimica Polonica; 2015, 62, 3; 423-433
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Restoration of plasma kidney and liver biomarkers in doxorubicin-treated Wistar rats by aqueous extracts of Pleurotus tuberregium sclerotia and Cnidoscolus aconitifolius leaves
    Autorzy:
    Ikewuchi, C.C.
    Ikewuchi, J.C.
    Ifeanacho, M.O.
    Powiązania:
    https://bibliotekanauki.pl/articles/2096610.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    albumin/globulin ratio
    alkaline phosphatase
    blood urea nitrogen
    creatinine
    doxorubicin
    transaminases
    Opis:
    The ability of aqueous extracts of sclerotia of Pleurotus tuberregium and leaves of Cnidoscolus aconitifolius to regulate plasma markers of kidney and liver function/integrity was investigated in doxorubicin-treated Wistar rats. Doxorubicin (dissolved in normal saline) was injected intraperitoneally (15 mg/kg body weight) into the rats; metformin was daily administered orally at 250 mg/kg, while the extracts were daily administered orally at doses of 50, 75, and 100 mg/kg. Compared to the test control, in both the doxorubicin pre-treatment (or ameliorative) study and the extract pre-treatment (protective) studies, the extracts and metformin-treated groups had significantly lower (P < 0.05) plasma levels of alkaline phosphatase, alanine transaminase and aspartate transaminase, and concentrations of creatinine, urea, and blood urea nitrogen. However, the plasma globulin, albumin, and total protein concentrations and the albumin/globulin ratio of the extract and metformin-treated groups were significantly higher (P < 0.05). The extracts prevented (in the protective study) or attenuated (in the ameliorative study) doxorubicin-induced increase in the levels of plasma markers of kidney and liver function/integrity, and afforded protection or recovery towards near-normal values.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 3; 297-306
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aqueous leafextracts of Chromolaena odorata and Tridax procumbens attenuated doxorubicin-induced pulmonary toxicity in Wistar rats
    Autorzy:
    Ikewuchi, C.C.
    Ikewuchi, J.C.
    Ifeanacho, M.O.
    Powiązania:
    https://bibliotekanauki.pl/articles/2096805.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Chromolaena odorata
    doxorubicin
    pulmonary lipids
    electrolyte profiles
    pulmonary oxidative stress
    Tridax procumbens
    Opis:
    This study investigated the potential protective role of aqueous leafextracts of Chromolaena odorata and Tridax procumbens against pulmonary toxicity induced by doxorubicin. To this end, the effects of these extracts on the profiles of pulmonary biomarkers, lipids and electrolytes were monitored in doxorubicin-treated rats. Doxorubicin was intraperitoneally administered at 15 mg/kg body weight (48 h prior to sacrifice); metformin was orally administered daily at 250 mg/kg body weight (for 14 days); and both extracts were orally administered daily at 50, 75 and 100 mg/kg body weight (for 14 days).The concentrations of pulmonary malondialdehyde, cholesterol, triglyceride, calcium, chloride and sodium of Test control were significantly higher (P < 0.05) than those of the other groups. However, the concentrations of pulmonary ascorbic acid, reduced glutathione, magnesium and potassium as well as pulmonary catalase, glutathione peroxidase and superoxide dismutase activities of Test control were significantly lower (P < 0.05) than those of the other groups.The administration of the extracts prevented doxorubicin-induced adverse alterations in the profiles of pulmonary biomarkers of oxidative stress, cholesterol and electrolytes and maintained them within the normal ranges .Therefore, these herbal preparations from C. odorata and T. procumbens are promising candidates for the prevention/alleviation of doxorubicin-induced pulmonary toxicity.
    Źródło:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 4; 387-398
    0860-7796
    Pojawia się w:
    BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The young breast cancer patient therapy – new opportunities, new challenges
    Autorzy:
    Załuska-Kusz, Joanna
    Kufel-Grabowska, Joanna
    Powiązania:
    https://bibliotekanauki.pl/articles/1035689.pdf
    Data publikacji:
    2019
    Wydawca:
    Medical Education
    Tematy:
    breast cancer in young patient
    metastatic disease
    non-pegylated liposomal doxorubicin
    ribociclib
    Opis:
    The paper describes the case of a 31-year-old female patient with breast cancer with the abdominal metastases. This disease in young people usually has a more aggressive biological subtype, which significantly worsens the prognosis. In this patient aggressive treatment was used. It was effective and did not cause severe or long-term complications.
    Źródło:
    OncoReview; 2019, 9, 2; 51-54
    2450-6125
    Pojawia się w:
    OncoReview
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synergistic interactions between resveratrol and doxorubicin inhibit angiogenesis both in vitro and in vivo
    Autorzy:
    Uvez, A.
    Aydinlik, S.
    Esener, O.B.B.
    Erkisa, M.
    Karakus, D.
    Armutak, E.I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2087274.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    resveratrol
    chick chorioallantoic membrane (CAM) assay
    doxorubicin
    HUVEC
    tube formation
    anti-angiogenic activity
    Źródło:
    Polish Journal of Veterinary Sciences; 2020, 23, 4; 571-580
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fluorouracyl i doksorubicyna – kardiotoksyczne cytostatyki w miejscu pracy
    Fluorouracil and doxorubicin – cardiotoxic cytostatics in the workplace
    Autorzy:
    Kupczewska-Dobecka, Małgorzata
    Czerczak, Sławomir
    Powiązania:
    https://bibliotekanauki.pl/articles/2085523.pdf
    Data publikacji:
    2020-05-15
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    narażenie zawodowe
    cytostatyki
    toksyczność
    fluorouracyl
    doksorubicyna
    dyrektywa CMD
    occupational exposure
    cytostatics
    toxicity
    fluorouracil
    Doxorubicin
    CMD directive
    Opis:
    Celem pracy jest analiza potencjalnych zagrożeń zawodowych związanych z fluorouracylem (FU) i doksorubicyną (DOX). Przegląd piśmiennictwa przeprowadzono, korzystając z faktograficznych i bibliograficznych baz naukowych obejmujących czasopisma recenzowane oraz z tzw. szarej literatury. W Polsce od 2014 r. trwa proces ustalania dopuszczalnych poziomów narażenia zawodowego dla wybranych leków przeciwnowotworowych, a podstawą do wyznaczenia najwyższych dopuszczalnych stężeń jest zwykle stężenie ekwiwalentne 0,1% najmniejszej znalezionej w piśmiennictwie dawki terapeutycznej. Stosuje się także współczynniki niepewności, które uwzględniają: mechanizm działania cytostatyku, dynamikę metabolizmu, ocenę klasyfikacji i oznakowania pod kątem właściwości rakotwórczych, mutagennych oraz genotoksycznych, szkodliwego działania na rozrodczość, działania toksycznego na narządy, zdolność kumulacji cytostatyku, ocenę działania łącznego z innymi cytostatykami, postać fizykochemiczną oraz kompletność danych. Jeśli jest to możliwe, szacuje się ryzyko wystąpienia dodatkowego nowotworu. W Unii Europejskiej kluczowym rozwiązaniem prawnym dotyczącym zdrowia publicznego, ukierunkowanym na problematykę nowotworów zawodowych, jest dyrektywa CMD (carcinogens and mutagens directive). Omawiane cytostatyki wykazują działanie genotoksyczne i są zaliczone do grupy leków niebezpiecznych. Ich poważnym działaniem ubocznym jest zagrażające życiu uszkodzenie serca. W przeprowadzonej analizie wykazano, że włączenie leków niebezpiecznych do wykazu substancji podlegających wymaganiom dyrektywy CMD jest całkowicie uzasadnione. Procedura klasyfikacji i oznakowania cytostatyków powinna zostać zharmonizowana w całej Unii Europejskiej: zapewniłoby to rzetelne i wiarygodne zarządzanie ryzykiem.
    The aim of the study is to analyze the potential occupational hazards of fluorouracil (FU) and doxorubicin (DOX). The literature review was based on factual and bibliographic scientific databases of the available peer-reviewed journals and the so-called gray literature. In Poland, the process of determining the acceptable levels of occupational exposure for selected anticancer drugs has been underway since 2014, and the basis for determining the maximum allowable concentration values is usually the concentration equivalent to 0.1% of the lowest therapeutic dose found in the literature. In addition, uncertainty coefficients are used, which take into account the mechanism of action of the cytostatics, the dynamics of metabolism, the assessment of classification and labeling for carcinogenic, mutagenic, genotoxic, reproductive toxicity, organ toxicity, the ability to accumulate cytostatics, the assessment of cumulative effects with other cytostatics, the physicochemical form and data completeness. Where possible, the risk of additional cancer is estimated. Directive 2004/37/EC on the protection of workers from the risks related to exposure to carcinogens at work (the carcinogens and mutagens directive ‒ CMD) is a key legal solution in the field of public health in the European Union, focused on the issue of occupational cancer. These cytostatics, FU and DOX, are genotoxic and are classified as hazardous. Life-threatening heart damage is a serious side effect of both FU and DOX. The analysis has shown that the inclusion of dangerous drugs in the list of substances subject to the requirements of the CMD is completely justified. The cytostatics classification and labeling procedure should be harmonized throughout the European Union, which will ensure a reliable and credible risk management in this area.
    Źródło:
    Medycyna Pracy; 2020, 71, 3; 363-373
    0465-5893
    2353-1339
    Pojawia się w:
    Medycyna Pracy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Badanie wpływu Selolu na ekspresję genów kodujących transportery błonowe i enzymy metabolizujące leki w komórkach nowotworowych wrażliwych i opornych
    A study of the effect of Selol on the expression of genes encoding membrane transporters and drugs metabolism enzymes in sensitive and resistant tumour cells
    Autorzy:
    Dudkiewicz Wilczyńska, Jadwiga
    Grabowska, Agnieszka
    Książek, Iza
    Nowak, Karolina
    Anuszewska, Elżbieta
    Powiązania:
    https://bibliotekanauki.pl/articles/1035141.pdf
    Data publikacji:
    2011
    Wydawca:
    Śląski Uniwersytet Medyczny w Katowicach
    Tematy:
    ekspresja genów
    selol 5%
    doksorubicyna
    hela
    kb-v1
    gene expression
    doxorubicin
    hela cells
    kb-v1 cells
    Opis:
    The objective of this study was to demonstrate diff erences in the gene expression of human cervical cancer cells (HeLa) and vinblastine-resistant KB-V1 subline treated with doxorubicin alone and combination of Selol 5% and doxorubicin. Ongoing studies seek to clarify the mechanism of action of Selol in diff erent types of cancer cells, including those which show multidrug resistance. Cells treatment with the tested compounds in the group of genes tested in HeLa cells causes other changes than in KB-V1 cells. In the resistant cells, exposure to Selol 5% and doxorubicin, released the cytotoxic eff ects by changing the expression of ABCC2 and BCL2L1 genes. The observed dependence also allows better understanding the molecular mechanisms of resistance in the KB-V1 cell line.
    Celem pracy było wykazanie różnic w ekspresji genów komórek ludzkiego nowotworu szyjki macicy (HeLa) i opornej na winblastynę podlinii KB-V1, poddanych działaniu samej doksorubicyny oraz po łącznym podaniu Selolu 5% i doksorubicy. Prowadzone badania zmierzają do wyjaśnienia mechanizmu działania Selolu w różnych typach komórek nowotworowych, w tym opornych wielolekowo. Poddanie komórek działaniu testowanych związków powoduje inne zmiany w grupie badanych genów w komórkach HeLa niż w komórkach KB-V1. Łączne podanie Selolu 5% i doksorubicyny wyzwala efekt cytotoksyczny w komórkach opornych KB-V1, co przypuszczalnie jest związane ze zmianą ekspresji genów ABCC2 i BCL2L1. Zaobserwowana zależność pozwala także lepiej zrozumieć molekularne podłoże oporności komórek linii KB-V1.
    Źródło:
    Annales Academiae Medicae Silesiensis; 2011, 65, 5-6; 7-13
    1734-025X
    Pojawia się w:
    Annales Academiae Medicae Silesiensis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wymiana masy w układach rozproszonych do zastosowań biomedycznych
    Mass transfer in dispersed systems for biomedical applications
    Autorzy:
    Metera, A.
    Markowska-Radomska, A.
    Dłuska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2073336.pdf
    Data publikacji:
    2018
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    emulsje wielokrotne
    wymiana masy
    uwalnianie leku
    transport selektywny
    doksorubicyna
    multiple emulsions
    mass transfer
    drug release
    selective transport
    doxorubicin
    Opis:
    Badano uwalnianie doksorubicyny przy pH 7,4 (środowisko komórek zdrowych) oraz 6,3 (środowisko komórek nowotworowych) zemulsji o różnych rozmiarach kropel. W fazie zewnętrznej emulsji wykorzystano biopolimer, którego lepkość zmienia się w zależności od pH środowiska, co pozwoliło na selektywne uwalnianie chemoterapeutyku. Uzyskano szybsze uwalnianie składnika w warunkach kwaśnego pH oraz z emulsji o mniejszych rozmiarach kropel.
    The release of doxorubicin at pH 7.4 (normal cells) and 6.3 (tumor cells) from emulsions with different drop sizes was tested. In the emulsion external phase a biopolymer of viscosity depending on the environmental pH was used allowing for the selective release of chemotherapeutics. A faster release of the component was obtained under acidic pH and from emulsions with smaller drop sizes.
    Źródło:
    Inżynieria i Aparatura Chemiczna; 2018, 3; 71--72
    0368-0827
    Pojawia się w:
    Inżynieria i Aparatura Chemiczna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Chlorowodorek doksorubicyny : metoda oznaczania w powietrzu na stanowiskach pracy z zastosowaniem wysokosprawnej chromatografii cieczowej
    Doxorubicin hydrochloride : determination in workplace air with high performance liquid chromatography
    Autorzy:
    Szewczyńska, M.
    Pośniak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/137822.pdf
    Data publikacji:
    2018
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    chlorowodorek doksorubicyny
    leki cytostatyczne
    metoda analityczna
    wysokosprawna chromatografia cieczowa
    powietrze na stanowiskach pracy
    doxorubicin hydrochloride
    cytostatic drugs
    analytical method
    high performance liquid chromatography
    workplace air
    Opis:
    W artykule przedstawiono metodę oznaczania chlorowodorku doksorubicyny (DXO) w powietrzu na stanowiskach pracy z zastosowaniem wysokosprawnej chromatografii cieczowej (HPLC) z detektorem diodowym (DAD). Metoda polega na: wyodrębnieniu frakcji wdychalnej aerozolu chlorowodorku doksorubicyny z powietrza na filtrze z włókna szklanego, wymyciu analitu wodą destylowaną oraz analizie chromatograficznej otrzymanego roztworu. Oznaczenia prowadzono w układzie faz odwróconych (faza ruchoma: mieszanina 0,05 mol/L wodorofosforanu disodu i acetonitrylu (65: 35) o pH = 3 z dodatkiem 0,5 mL/L trietyloaminy) z zastosowaniem kolumny analitycznej C18 wypełnionej modyfikowanym żelem krzemionkowym. Na podstawie wyników przeprowadzonych badań ustalono zakres pomiarowy metody 0,06 ÷ 1,0 μg/m3 dla próbki powietrza 4800 l. Granica wykrywalności (LOD) tej metody wynosi 0,0005 μg/ml, a granica oznaczalności (LOQ) – 0,0015 μg /ml. Opracowana metoda oznaczania chlorowodorku doksorubicyny w powietrzu na stanowiskach pracy została zapisana w postaci procedury analitycznej, którą zamieszczono w załączniku.
    This article presents a method for measuring doxorubicin hydrochloride in workplace air with HPLC with diode array detector (DAD). The method is based on adsorption inhalable fraction of doxorubicin hydrochloride aerosol on glass fiber filter, desperation with water, and chromatographic analysis. The analysis was performed in reverse phase (mobile phase – 0.05 mol/L hydrophosphate disodum and acetonitrile (65:35) with pH – 3 with 0.5 mL/L triethylamine) on C18 column. The measurement range was 0.06 – 1 µg/m3 for 4800-L air sample. The limit of detection (LOD) was 0,0005 µg /ml and the limit of quantification (LOQ) was 0,0015 µg /ml. The developed method of doxorubicin hydrochloride determination has been recorded as an analytical procedure (see appendix).
    Źródło:
    Podstawy i Metody Oceny Środowiska Pracy; 2018, 2 (96); 115-131
    1231-868X
    Pojawia się w:
    Podstawy i Metody Oceny Środowiska Pracy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-29 z 29

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