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Wyszukujesz frazę "Non-small cell lung cancer" wg kryterium: Temat


Wyświetlanie 1-9 z 9
Tytuł:
Reference genes for gene expression studies on non-small cell lung cancer
Autorzy:
Gresner, Peter
Gromadzinska, Jolanta
Wasowicz, Wojciech
Powiązania:
https://bibliotekanauki.pl/articles/1040589.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
non-small cell lung cancer
reference genes
data normalization
real-time PCR
gene expression
Opis:
Study Objective: The aim of this study was to test a panel of 6 reference genes in order to identify and validate the most suitable reference genes for expression studies in paired healthy and non-small cell lung cancer tissues. Method: Quantitative real-time PCR followed by the NormFinder- and geNorm-based analysis was employed. The study involved 21 non-small cell lung cancer patients. Results: The analysis of experimental data revealed HPRT1 as the most stable gene followed by RPLP0 and ESD. In contrast, GAPDH was found to be the least stable gene. HPRT1 together with ESD was revealed as the pair of genes introducing the least systematic error into data normalization. Validation by bootstrap random sampling technique and by normalizing exemplary gene expression data confirmed the results. Conclusion: Although HPRT1 and ESD may by recommended for data normalization in gene expression studies on non-small cell lung cancer, the suitability of selected reference genes must be unconditionally validated prior to each study.
Źródło:
Acta Biochimica Polonica; 2009, 56, 2; 307-316
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wstępne wyniki zastosowania techniki interferencji RNA do wyciszania ekspresji genów MMP-2 i MMP-9 kodujących metaloproteinazy macierzy pozakomórkowej w komórkach raka płuca linii A549
Preliminary results of application of RNA interference technique to downregulate expression of matrix metalloproteinases: MMP-2 and MMP-9 genes in A549 lung cancercells
Autorzy:
Galilejczyk, Anna
Sypniewski, Daniel
Bednarek, Ilona
Powiązania:
https://bibliotekanauki.pl/articles/1034847.pdf
Data publikacji:
2013
Wydawca:
Śląski Uniwersytet Medyczny w Katowicach
Tematy:
mmp-2
mmp-9
interferencja rna
niedrobnokomórkowy rak płuca
rna interference
non-small cell lung cancer
Opis:
INTRODUCTION Tumor growth, invasion of surrounding tissues and metastasis require degradation of the protein components of the extracellular matrix and basement membranes. Matrix metalloproteinases play a major role in the process of digesting ECM components and intensify the adverse effects around the growing tumor. Increased expression and activity of MMP-2 and MMP-9 have been observed in many malignancies. The aim of this study was to design and apply a method based on RNA interference to reduce the expression of gelatinases. MATERIAL AND METHOD Silencing oligonucleotides directed at MMP-2 and MMP-9 genes were designed based on the mRNA sequences (GenBank) in the sirna program. Gene constructs were synthesized and cloned into the pSUPER.neo vector. After verifying their correctness, plasmid DNA was used to transfect human non-small cell lung cancer A549 cells. The changes in the level of MMP-2 and MMP-9 mRNA were determined by the Real TimeTM PCR technique. RESULTS After 24 hours of shRNA/MMP-2 construct application, no changes in the MMP-2 mRNA level were observed. In turn, after 10 days a 33.1% reduction was noticed. Downregulation of the MMP-9 gene was more efficient. After 24 hours of using plasmids carrying shRNA/MMP-9 constructs, a 95.6% decrease in the number of MMP-9 mRNA copies was observed. After 10 days, the level of MMP-9 gene expression was 26.2% in comparison to the mRNA level established for the control cells. CONCLUSIONS The RNA interference technique can be successfully used to downregulate the expression of MMP-2 and MMP-9 genes. The obtained results confirmed that our shRNA/MMP-2 and shRNA/MMP-9 constructs are capable of reducing the mRNA level in the non–small cell lung cancer A549 cell line.
W S T Ę P Wzrost guzów nowotworowych, inwazja otaczających tkanek oraz powstawanie przerzutów wymagają degradacji białkowych składników macierzy pozakomórkowej oraz błon podstawnych. Metaloproteinazy macierzy pozakomórkowej odgrywają podstawową rolę w trawieniu składników macierzy i nasilają wiele niekorzystnych zmian w otoczeniu rozwijającego się nowotworu. W przebiegu licznych nowotworów szczególnie podkreśla się negatywną rolę metaloproteinaz należących do grupy żelatynaz. Celem pracy było zaprojektowanie i zastosowanie metody wykorzystującej zjawisko interferencji RNA, pozwalającej obniżyć ekspresję genów MMP-2 i MMP-9. MATERIAŁ I METODY Materiał do badań stanowiły ludzkie komórki nowotworowe niedrobnokomórkowego raka płuca linii A549. Wyciszające konstrukcje genetyczne zaprojektowano opierając się na sekwencjach mRNA dla MMP-2 i MMP-9, pochodzących z bazy danych GenBank, za pomocą programu komputerowego sirna, a następnie wklonowano do plazmidu pSUPER.neo. Po zweryfikowaniu prawidłowości otrzymanych konstrukcji, plazmidowy DNA wykorzystano do transfekcji komórek eukariotycznych A549. Do oceny zmian poziomu ekspresji mRNA MMP-2 i MMP-9 zastosowano metodę Real Time TM RT – PCR. WYNIKI W komórkach A549, do których wprowadzono zaprojektowane konstrukcje shRNA/MMP-2, po 24 godzinach nie zaobserwowano zmian poziomu mRNA MMP-2, natomiast po 10 dniach odnotowano 33,1% spadek ekspresji tego genu. Wydajniejszy był proces wyciszania ekspresji genu MMP-9 , gdyż w komórkach transfekowanych plazmidami niosącymi konstrukcje shRNA/MMP-9 zaobserwowano 95,6% spadek liczby kopii mRNA MMP- 9 już po 24 godzinach. Po 10 dniach poziom ekspresji genu MMP-9 wynosił 26,2% w stosunku do poziomu ustalonego dla komórek kontrolnych. WNIOSKI Technika interferencji RNA może być wykorzystywana do wyciszania ekspresji genów żelatynaz związanych z procesem metastazy nowotworów. Wstępne wyniki potwierdziły zdolność zaprojektowanych konstrukcj i genetycznych do potranskrypcyjnego wyciszania ekspresji tychże genów w komórkach niedrobnokomórkowego raka płuca linii A549
Źródło:
Annales Academiae Medicae Silesiensis; 2013, 67, 3; 157-165
1734-025X
Pojawia się w:
Annales Academiae Medicae Silesiensis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Association between polymorphisms in CHRNA3 and PHACTR2 gene and environment and NSCLC risk in Chinese population
Autorzy:
Lou, Guangyuan
Zhang, Yongjun
Bao, Wenlong
Deng, Dehou
Powiązania:
https://bibliotekanauki.pl/articles/1039210.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Non-small cell lung cancer
phosphatase and actin regulator 2 (PHACTR2)
cholinergic receptor
nicotinic
alpha 3 (CHRNA3)
single-nucleotide polymorphism
Opis:
Aims. This study aimed to investigate CHRNA3 (rs8040868) and PHACTR2 (rs9390123) single-nucleotide polymorphisms (SNPs) for association with non-small-cell lung cancer (NSCLC) risk in a Chinese population, and whether the environment affects the genetic polymorphisms. Methods. This case and control study included 500 NSCLC patients and 500 age-matched healthy controls. CHRNA3 (rs8040868) and PHACTR2 (rs9390123) SNPs were genotyped and associated for NSCLC risk by computing the odds ratio and 95% confidence interval from multivariate unconditional logistic regression analyses with adjustment of age. Results. The minor allele frequency (MAF) of CHRNA3 (rs8040868) and PHACTR2 (rs9390123) was 0.350 (C) and 0.397 (C), respectively. The frequencies of genotype and allele in CHRNA3 (rs8040868) and PHACTR2 (rs9390123) were not significantly different between the cases and controls, or between either of the subgroups. Conclusion. Although rs8040868 and rs9390123 SNPs are not associated with NSCLC risk in Chinese population, the results strongly suggest that geographical agents interact with human genetic polymorphism independent of ethnic background.
Źródło:
Acta Biochimica Polonica; 2014, 61, 4; 765-768
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Clinical and prognostic value of hTERT mRNA expression in patients with non-small-cell lung cancer
Autorzy:
Zalewska-Ziob, Marzena
Dobija-Kubica, Katarzyna
Biernacki, Krzysztof
Adamek, Brygida
Kasperczyk, Janusz
Bruliński, Krzysztof
Ostrowska, Zofia
Powiązania:
https://bibliotekanauki.pl/articles/1038550.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
non-small-cell lung cancer
telomerase
hTERT expression
survival rate
prognosis
Opis:
Telomerase, undetectable in normal somatic cells, plays a critical role in carcinogenesis of the majority of human tumors including lung carcinoma. The aim of our study was to determine human telomerase reverse transcriptase (hTERT) mRNA expression in patients with non-small cell lung cancer (NSCLC) in order to estimate its usefulness as diagnostic and/or prognostic factor. hTERT expression was analyzed in a group of 12 females and 28 males with NSCLC using Quantitative Real-Time Polymerase Chain Reaction (QRT-PCR method) in cancerous and non-cancerous lung tissues. Results were analyzed according to clinical data and one-, two-, and five-year survival rates. hTERT expression in the cancerous tissue was significantly higher than in the lung parenchyma free from neoplasm infiltration (p<0.05). There was no significant association between hTERT expression in the tumor tissue and age, gender, grading or clinical stage. A significant difference in hTERT expression between two types of histopathological patterns (adenocarcinoma and squamous cell carcinoma) was detected (p=0.01). No association between hTERT expression in NSCLC specimens and survival rates was found. hTERT mRNA detection by QRT-PCR in tumor and corresponding cancer-free tissues can be used as a diagnostic marker in patients with NSCLC, but seems not to be a prognostic factor.
Źródło:
Acta Biochimica Polonica; 2017, 64, 4; 641-646
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The evaluation of the efficacy and toxicity of targeted treatment in non-small cell lung cancer patients – single centre experience
Autorzy:
Kardas, Joanna
Buraczewska, Agnieszka
Chrom, Paweł
Waśko-Grabowska, Anna
Młot, Beata
Szczylik, Cezary
Powiązania:
https://bibliotekanauki.pl/articles/773534.pdf
Data publikacji:
2017
Wydawca:
Medical Education
Tematy:
endothelial growth factor receptor
non-small cell lung cancer
tyrosine kinase inhibitor
Opis:
Introduction: Tyrosine kinase inhibitors (TKI) are the standard of treatment in patients with advanced non-small cell lung cancer (NSCLC) with EGFR (endothelial growth factor receptor) gene activating mutation. Objective: The evaluation of the efficacy and toxicity of TKI drugs in NSCLC patients treated in single centre. Material and methods: NSCLC patients treated with TKI (gefitinib, erlotynib, afatinib) between 2012– 2016 were retrospectively analysed. We evaluated: overall response rate (ORR) which is the sum of complete responses (CR) and partial remissions (PR), progression free survival (PFS), overall survival (OS) and adverse events (AE) according to CTCAE (Common Terminology Criteria for Adverse Events) scale. Results: The study group were 16 patients ORR was 50% (CR: 1, PR: 7). Median PFS and OS was 8,7 and 22,9 months respectively. Adverse events observed mainly in stage 1 and 2 were related to hyponatraemia, hyperbilirubinemia, skin toxicity and mucositis. There was one death reported due to infectious complications. Conclusion: The efficacy and toxicity of TKI in study group were found to be similar to those described in the literature.
Źródło:
OncoReview; 2017, 7, 2; 92-97
2450-6125
Pojawia się w:
OncoReview
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long non-coding RNA and Notch regulation in non-small cell lung cancer
Autorzy:
Pancewicz, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1918915.pdf
Data publikacji:
2020-06-10
Wydawca:
Uniwersytet Medyczny w Białymstoku
Tematy:
Notch
non-small cell lung cancer
lncRNAs
Opis:
Non-small cell lung cancer is one of the most commonly diagnosed cancer with a very high mortality rate. Trying to understand the mechanisms underlying the progression of this type of cancer, it is necessary to evaluate the changes occurring at molecular level in cancer cells. Besides the widely studied signaling pathways and genes which are dysregulated in NSCLC, there is a large group of non-coding RNAs involved in cancer pathogenesis. Those RNAs are tissue specific heterogeneous class of RNAs that play many functions in physiological condition in cells, nevertheless current data has shown that lncRNAs are also functional in different types of cancer. Moreover, it has been suggest that lncRNAs are involved in cancer progression by controlling key signaling pathways involved in diverse types of tumors. Notch signaling is one of those pathways, very often deregulated in NSCLC. Therefore in this review I summarized recent outcomes according the importance of lncRNAs in regulation of Notch pathway in the pathogenesis of NSCLC.
Źródło:
Progress in Health Sciences; 2020, 10(1); 108-122
2083-1617
Pojawia się w:
Progress in Health Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A brief dive into the phenomenon of cisplatin resistance in non-small-cell lung cancer
Autorzy:
Sobczak, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/1830652.pdf
Data publikacji:
2021-09-29
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
non-small-cell lung cancer
cisplatin
cisplatin resistance
Opis:
Lung cancer is one of the most lethal types of cancer due to a lack of proper treatment. The rare presence of molecular therapy targets forces the use of platinum-based drugs. Cisplatin, approved by the USA as an anticancer therapy in the 1970s, is still one of the most prominent therapies against lung cancer. Unfortunately, the biggest limitation of cisplatin-based therapy is the development of cisplatin resistance. Cancer cells overcome the vast DNA damage caused by the drug in a variety of ways such as detoxication and extracellular transport of the drug, enhanced repair mechanisms, omitting apoptosis and epigenetic alterations. Chemotherapy resistance is an issue that so far cannot be dealt with. Nevertheless, better understanding of the molecular pathways behind cisplatin resistance brings hope for better therapy outcomes in lung cancer patients.
Źródło:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2021, 17; 37-41
1730-2366
2083-8484
Pojawia się w:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficacy of crizotinib therapy for a patient with non-small cell lung cancer with ALK gene rearrangement – case report and review of current therapeutic options
Autorzy:
Bargiel, J.B.
Cabaj, J.
Chmielewska, I.
Milanowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/2098542.pdf
Data publikacji:
2021
Wydawca:
Instytut Medycyny Wsi
Tematy:
non-small cell lung cancer
crizotinib
therapy
gene rearrangement
tyrosine kinase inhibitor
patient
Opis:
Introduction. Currently, nearly 23,000 cases of lung cancer are diagnosed in Poland annually, of which 5% are cases with rearrangements in the ALK gene. In recent years, tremendous progress has been made in understanding the genetic makeup of this type of cancer, which has enabled the use of new therapies, in particular, molecularly targeted drugs. Crizotinib is the first oral small molecule inhibitor of ALK, MET and ROS1 receptor tyrosine Kinases approved by the European Medicines Agency(EMA). Case report. The paper presents the case of a 62-year-old patient diagnosed with non-small cell lung cancer with rearrangement in the ALK gene in stage IV of the disease. The patient was qualified for treatment with crizotinib under the B6 drug programme. Treatment started in May 2019. During treatment, assessment was made at 3 control points, where the first and second showed a partial response according to the RECIST 1.1 scale; in the next assessment, the response was maintained in the form of disease stabilization.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2021, 15, 3; 151-154
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Life Expectancy in Patients With Stage III A Non-small Cell Lung Cancer (NSCLC) Treated With Neoadjuvant Chemoradiotherapy (NCRT), Neoadjuvant Chemotherapy (NCT), Neoadjuvant Chemotherapy + Adjuvant Radiation Therapy (NCT + Adjuvant RT)
Przewidywana długość życia u pacjentów z niedrobnokomórkowym rakiem płuca w stadium III A (NSCLC) poddanych neoadjuwantowej chemioradioterapii (NCRT), neoadjuwantowej chemioterapii (NCT), neoadjuwantowej chemioterapii + adjuwantowej radioterapii (NCT + adjuwantowa RT)
Autorzy:
Maliarchuk, Katerina
Ganul, Andrey
Borisyuk, Bogdan
Bororov, Leonid
Shevchenko, Anatoly
Sovenko, Vladimir
Kutsenko, Lubov
Powiązania:
https://bibliotekanauki.pl/articles/2159225.pdf
Data publikacji:
2022-12-30
Wydawca:
Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:
neoadjuvant therapy
pneumonectomy
lobectomy
non-small cell lung cancer
overall survival
terapia neoadjuwantowa
pneumonektomia
lobektomia
niedrobnokomórkowy rak płuca
choroby
przeżycie całkowite
Opis:
Background. This work is а comparative study of survival in patients with stage III A non-small cell lung cancer (NSCLC) treated with neoadjuvant chemoradiotherapy (NCRT), neoadjuvant chemotherapy (NCT) and neoadjuvant chemotherapy and adjuvant radiation therapy (NCT + adjuvant RT). Material and methods. Three groups of 65 people were selected. The first group received NCT, the second group – NCT, and the third group – NCT + adjuvant radiation therapy. The NCRT group received radiation therapy of 30 Gy. Survival was assessed using the Kaplan and Mayer scale and according to the log rank criteria. Results. The statistical criterion for NCRT in relation to NCT was -3.51279, r=0.00044. The statistical criterion for NCRT in relation to NCT + adjuvant RT was -2.88568, r=0.00391. Less reliable dependence was observed between NCT and NCT + adjuvant RT (the statistical criterion =1.809508, p=0.070307). Conclusions. Performing NCT, NCRT or NCT + RT and the status of complete morphological response (CMR) during the revision of histological material, it is possible to predict survival for a period of up to 36 months. NCRT is the optimal method of treatment.
Wprowadzenie. Niniejsza praca stanowi badanie porównawcze przeżycia u pacjentów z niedrobnokomórkowym rakiem płuca w stadium III A (NSCLC) w leczeniu neoadjuwantową chemioradioterapią (NCRT), neoadjuwantową chemioterapią (NCT) oraz neoadjuwantową chemioterapią i adjuwantową radioterapią (NCT + adjuwantowa RT). Materiał i metody. Wyłoniono 3 grupy po 65 osób. Pierwsza grupa otrzymała NCT, druga grupa – NCRT, a trzecia grupa – NCT + radioterapię adjuwantową. Grupa NCRT otrzymała radioterapię w dawce 30 Gy. Przeżycie oceniano za pomocą skali Kaplana i Mayera oraz według kryteriów log rank. Wyniki. Kryterium statystyczne NCRT w stosunku do NCT wyniosło -3,51279, r=0,00044. Kryterium statystyczne NCRT w stosunku do NCT + adjuwantowej RT wyniosło -2,88568, r=0,00391. Mniej wiarygodna zależność została zaobserwowana między NCT a NCT + adjuwantowa RT (kryterium statystyczne = 1,809508, p=0,070307). Wnioski. Wykonując NCT, NCRT lub NCT + RT oraz status całkowitej odpowiedzi morfologicznej (CMR) podczas rewizji materiału histolog
Źródło:
Health Problems of Civilization; 2022, 16, 4; 302-311
2353-6942
2354-0265
Pojawia się w:
Health Problems of Civilization
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-9 z 9

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