Expression level of drug resistance genes in the tumor of ovarian cancer patients after neoadjuvant chemotherapy

The purpose of the paper is to evaluate the relationship between the expression of drug resistance genes in the tumor tissue of patients with ovarian cancer after neoadjuvant chemotherapy (NAChT) with clinical and pathological disease parameters. Materials and Methods. The study included 26 patients with ovarian cancer who had undergone NAChT according to the AP scheme. The authors used paired samples of normal and tumor ovatian tissue as material for their study. The expression level of ABCB1, ERCC1, and TOP2A genes was evaluated by real-time PCR. Results. It was found out that in patients under 60 years of age, the level of ABCB1 expression is higher than in patients over 60. ERCC1 and TOP2A expression in different age groups was the same. The linkage between the studied genes, tumor size and metastasis was not discovered. TOP2A and ABCB1 expression levels in patients with and without relapses did not differ significantly. In patients with relapses, the level of ERCC1 expression is higher than in patients without relapses...