The present invention belongs to the field of
disease diagnosis and treatment and
molecular biology technology, and specifically relates to the application of circRNA in enhancing the
chemotherapy sensitivity of triple-negative
breast cancer and the prognosis assessment of
breast cancer patients. Through research, the present invention found that the expression of circRNA-CREIT in
breast cancer tissue was significantly lower than that in the surrounding
normal breast tissue, and the expression in TNBC
cell lines was significantly lower than that in non-TNBC, and circRNA-CREIT overexpression was significantly correlated with a
good prognosis in breast
cancer patients. Overexpression of circRNA-CREIT in TNBC
cell lines can significantly enhance the sensitivity of cells to the
chemotherapy drug doxorubicin. Therefore, circRNA-CREIT can provide a new therapeutic target for enhancing the
chemotherapy sensitivity of TNBC and provide a new
predictive factor for the prognosis judgment of breast
cancer patients, and therefore has good practical application value.