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Wyświetlanie 1-2 z 2
Tytuł:
Anticancer activity of new molecular hybrids combining 1,4-naphthalenedione motif with phosphonic acid moiety in hepatocellular carcinoma HepG2 cells
Autorzy:
Długosz, Angelika
Gach, Katarzyna
Szymański, Jacek
Modranka, Jakub
Janecki, Tomasz
Janecka, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1038683.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
MTT test
apoptosis
real-time PCR
flow cytometry
Opis:
Structural motifs found in naturally occurring compounds are frequently used by researchers to develop novel synthetic drug candidates. Some of these new agents are hybrid molecules which are designed through a concept of combining more than one functional element. In this report, anticancer activity of new synthetic molecular hybrids, substituted 3-diethoxyphosphorylnaphtho[2,3-b]furan-4,9-diones and 3-diethoxyphosphorylbenzo[f]indole-4,9-diones, which integrate natural 1,4-naphtalenedione scaffold, present in several anticancer agents, with pharmacophoric phosphonate moiety, were tested against hepatocellular cell line HepG2. Cytotoxicity was examined using MTT assay. Two most potent compounds, furandione 8a and benzoindoldione 12a, which reduced the number of viable HepG2 cells with the IC50 values of 4.13 µM and 5.9 µM, respectively, were selected for further research. These compounds decreased the mRNA expression levels of several genes: Bcl-2, angiogenic vascular endothelial growth factor (VEGF), c-Fos, caspase-8 and increased the expression of Bax, caspase-3 and -9, c-Jun, p21, p53, as determined by quantitative real-time PCR. The ability of these compounds to induce apoptosis and DNA damage was studied by flow cytometry. The obtained data showed that the new compounds inhibited cell viability by increasing apoptosis and decreasing angiogenesis. Compound 8a was a much stronger apoptosis inducer as compared with 12a and strongly activated the intrinsic pathway of apoptosis, associated with the loss of mitochondrial membrane potential and changes in Bax/Bcl-2 ratio. These findings show that the synthetic hybrids combining 1,4-naphthalenedione system and phosphonic acid moiety display potential to be further explored in the development of new anticancer agents.
Źródło:
Acta Biochimica Polonica; 2017, 64, 1; 41-48
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A clinical utility of a strip test for influenza A/B and comparison with detection by RT PCR
Autorzy:
Miarka, Maciej
Horban, Andrzej
Maliszewska, Henryka
Biliński, Przemysław
Prus-Kowalczuk, Wanda
Powiązania:
https://bibliotekanauki.pl/articles/1039251.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
A/H1N1/v influenza virus
strip test
influenza RT PCR
Opis:
Introduction and objective: In June 2009 the World Health Organization announced influenza pandemic caused by A/H1N1/v virus. It became crucial to recognize new cases of A/H1N1/v infection. An effective screening diagnostic procedure was needed for patients suffering from influenza-like symptoms for making an initial diagnosis and analyzing epidemiological pattern of infection. We used a strip test for influenza A/B as a screening diagnostic procedure for patients suffering from influenza-like symptoms for making an initial diagnosis. For comparison, RT PCR for detecting A/H1N1/v was performed. The aim of this study was to assess the efficacy and sensitivity of the strip test and its value for making initial diagnosis of influenza A/H1N1/v. Material and methods: Strip testing for the influenza A/B infection was performed on 1123 patients with influenza-like symptoms in the Admission Unit of the Regional Infectious Diseases Hospital in Warsaw. Strip test results were analyzed according to the age of patients and season of the year. For 97 patients strip test results for detecting A/H1N1 infection were compared with those obtained by RT PCR. Results: There were no statistically significant differences found between the methods and strip testing demonstrated sensitivity of 61% and specificity of 71%. Conclusions: No statistically significant differences were found between the two methods, however, strip test had low sensitivity and specificity.
Źródło:
Acta Biochimica Polonica; 2014, 61, 3; 485-487
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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