Comprehensive molecular features of polycystic ovary syndrome revealed by transcriptome analysis of oocytes and cumulus cells
J. Li, H. Chen, M. Gou, C. Tian, H. Wang, X. Song, D. L. Keefe, X. Bai, L. L. Liu
Abstract
PCOS is typically characterized by polycystic ovarian morphology, hyperandrogenism, ovulatory dysfunction and infertility. Furthermore, PCOS patients undergoing ovarian stimulation have more oocytes, however, poor quality of oocytes lead to lower fertilization and implantation rates, decreased pregnancy and increased miscarriage rates. Our study suggests that global gene expression and cell to cell interactions of oocytes and CCs are significantly altered in women with PCOS. Noticeably, genes related to microtubules such as TUBB8 and TUBA1C are abnormally highly expressed in PCOS oocytes, reducing oocyte quality. The pattern of transposable element expression distinguishes PCOS from Control oocytes, implying the role of transposable elements in the occurrence of PCOS.
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