Research progress in copy number variation in ovarian cancer

Genetic variation is one of the important factors leading to the incidence and development of cancer. Copy number variation is an important source of genetic diversity， which can be expressed as gene amplification or deletion in structure， and is related to the occurrence and development of different tumors. High-throughput sequencing and gene chip technology can be adopted to detect the variation of copy number， and provide relevant information about tumor molecular characteristics， prognosis and treatment， which is conducive to more accurate diagnosis and treatment decisions for patients in clinical practice. Ovarian cancer is one of the female reproductive system diseases with the highest mortality rate. Understanding its pathogenesis is of significance for improving the survival rate of ovarian cancer. At present， the specific role and mechanism of copy number variation in ovarian cancer are still unclear. In this article， relevant copy number variation in ovarian cancer was reviewed based on the existing