Abstract Title:

The effect of quercetin on pro-apoptotic activity of cisplatin in HeLa cells.

Abstract Source:

Biochem Pharmacol. 2005 May 1;69(9):1343-50. PMID: 15826605

Abstract Author(s):

J Jakubowicz-Gil, R Paduch, T Piersiak, K Głowniak, A Gawron, M Kandefer-Szerszeń

Article Affiliation:

Department of Comparative Anatomy and Anthropology, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland. jjgil@biotop.umcs.lublin.pl

Abstract:

It is well known that some tumour cells are very resistant to chemotherapy-induced cell death which indicate poor prognosis for patients. Thus the aim of the present study was to investigate the effect of quercetin on pro-apoptotic activity of cisplatin in human cervix carcinoma cells (HeLa). Three variants of experiments were performed. In the first one cells were incubated with studied drugs separately for 8 and 24h. In the second, drugs were added to the culture medium simultaneously. In third cisplatin or quercetin addition was followed by subsequent quercetin or cisplatin treatment, respectively. We observed different apoptotic effects, dependent on the drug succession. Preincubation of cells with quercetin followed by cisplatin treatment appeared to be the most effective and was correlated with strong activation of caspase-3 and inhibition of both heat shock proteins (Hsp72) and multi-drug resistance proteins (MRP) levels. Our results indicate that quercetin pretreatment sensitizes HeLa cells to cisplatin-induced apoptosis in HeLa cells.

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