Specifically, we suggest that ERCC1+CTCs could additionally be useful as a surrogate for monitoring platinum-based chemotherapy and to assess the post-therapeutic outcome of ovarian cancer.
Therefore, overexpression of ERCC1 and other NER enzymes during ovarian cancer chemotherapy with cisplatin appears to be implicated in the formation of cellular and clinical drug resistance.
TUBB3, ERCC1 and P-gp are involved in the occurrence and development of ovarian cancer and can be used as important indexes judging the severity of ovarian cancer, providing a reference for the occurrence and development of the disease in ovarian cancer patients in clinical practice.
Our firstly investigation of links between polymorphisms in the ERCC1 gene and the risk of ovarian cancer in Chinese population demonstrated no significant association.
Levels of DNA cisplatin adducts in peripheral blood and buccal mucosa cells predict chemotherapy response, and high ERCC1 mRNA levels have been related to chemoresistance in ovarian cancer and in malignant lymphocytes from chronic lymphocytic leukemia.
We studied the DNA sequence of the entire coding region of ERCC1 gene, in five cell lines established from human ovarian cancer (A2780, A2780/CP70, MCAS, OVCAR-3, SK-OV-3), 29 human ovarian cancer tumor tissue specimens, one human T-lymphocyte cell line (H9), and non-malignant human ovary tissue (NHO).
Low ERCC1 was significantly associated with improved progression free survival (PFS) in patients with ovarian cancers in univariate (p = 0.001) and multivariate (p = 0.002) analysis.
Thus, ERCC1 could be a potential therapeutic target for the therapy of cisplatin-resistant ovarian cancer and it would provide new ideas for epigenetic therapy of drug-resistant epithelial ovarian cancer.
In summary, this study shows that low BRCA1 and ERCC1 expression correlate with improved survival in advanced OC and HDAC inhibition induces synergistic cytotoxicity with platinum in vitro.
Levels of DNA cisplatin adducts in peripheral blood and buccal mucosa cells predict chemotherapy response, and high ERCC1 mRNA levels have been related to chemoresistance in ovarian cancer and in malignant lymphocytes from chronic lymphocytic leukemia.