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We assessed changes in the apoptosis-related genes  BCL2 ,  BAX ,  BCL2L12 ,  FAS  and  CASPASE-3  in OVCAR-3 human ovarian cancer cells and BT-20 human breast cancer cells to provide an insight into the molecular mechanisms involved in the response of these cells to treatment with anticancer drugs and to assess their value as potential biomarkers of chemotherapy response in breast and ovarian cancer. Cells were treated with different chemotherapeutic drugs (cisplatin, carboplatin, doxorubicin, etoposide and taxol) and assessed for changes in the expression of apoptosis-related genes at the mRNA level. Total RNA was extracted, reverse-transcribed into cDNA and amplified by PCR using gene-specific primers.  GAPDH  was used as a housekeeping gene. Cytotoxicity was assessed by MTT assay. Both cancer cell lines responded differentially at the molecular level to the drug treatments. OVCAR-3 cells showed more pronounced sensitivity and changes compared to BT-20 cells at the mRNA level for different apoptosis-related genes, leading to cell and cancer type dependence in conjunction with drug dependence.

biological chemistry

Molecular profile of breast versus ovarian cancer cells in response to treatment with the anticancer drugs cisplatin, carboplatin, doxorubicin, etoposide and taxol