Obesity modulates cell-cell interactions during ovarian folliculogenesis

oleh: Xin Long, Qiuyun Yang, Jingjing Qian, Huiying Yao, Rui Yan, Xin Cheng, Qiancheng Zhang, Chan Gu, Fei Gao, Hongmei Wang, Lin Zhang, Fan Guo

Format: Article
Diterbitkan: Elsevier 2022-01-01

Deskripsi

Summary: Obesity is known to affect female reproduction, as evidenced by obese patients suffering from subfertility and abnormal oogenesis. However, the underlying mechanisms by which obesity impairs folliculogenesis are poorly documented. Here, we performed comprehensive single-cell transcriptome analysis in both regular diet (RD) and obese mouse models to systematically uncover how obesity affects ovarian follicle cells and their interactions. We found an increased proportion of Inhbb highly expressed granulosa cells (GCs) among all the GC subpopulations in obese mice. Under obese conditions, excessive androgen secreted from endocrine theca cells (ETCs) may contribute to the imbalanced change of GC subtypes through ETCs-GCs interactions. This is alleviated by enzalutamide, an androgen receptor antagonist. We also identified and confirmed typical GC markers, such as Marcks and Prkar2b, for sensitive evaluation of female fertility in obesity. These data represent a resource for studying transcriptional networks and cell-cell interactions during folliculogenesis under physiological and pathological conditions.