Acta Veterinaria et Zootechnica Sinica ›› 2025, Vol. 56 ›› Issue (4): 1484-1493.doi: 10.11843/j.issn.0366-6964.2025.04.002

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Research Progress on the Proliferation and Differentiation of Granulosa Cells at Various Follicular Development Stages in Mammal

GUO Yanyan1,2(), ZHANG Yuxin1,2, LU Rui1,2, LI Yupeng1, CHEN Longbin1, ZHANG Jinlong1, YAO Dawei1, RUAN Weibin2, ZHANG Xiaosheng1,*(), GUO Xiaofei1,3,*()   

  1. 1. Tianjin Engineering Research Center of Animal Healthy Farming, Tianjin Key Laboratory of Animal Molecular Breeding and Biotechnology, Institute of Animal Husbandry and Veterinary, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China
    2. College of Life Science, Nankai University, Tianjin 300071, China
    3. Jilin Provincial Key Laboratory of Grassland Farming, Jilin Province Feed Processing and Ruminant Precision Breeding Cross Regional Cooperation Technology Innovation Center, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
  • Received:2024-07-16 Online:2025-04-23 Published:2025-04-28
  • Contact: ZHANG Xiaosheng, GUO Xiaofei E-mail:guoyynice122@163.com;zhangxs0221@126.com;guoxfnongda@163.com

Abstract:

Spermatogenesis, oogenesis, and the development of a fertilized egg, are all crucial in mammalian reproduction. Currently, there is no shortage of studies on the maturation and development of mammalian oocytes, but the role of granulosa cells in the development of oocytes remains to be explored in depth. In female mammals, early ovarian granulosa cells are developed from the ovarian reticulum and ovarian epidermal cells; thereafter, the precursor granulosa cell stage surrounds the oocyte, providing nutrients and communicates information for the oocyte through gap junctions, and regulating oocyte maturation by relying on the regulation of reproduction hormones (such as AMH, FSH, and LH). In this paper, the origin of mammalian ovarian granulosa cells, the differentiation of granulosa cells at each stage of follicle development, and their functional mechanism during oocyte maturation were reviewed in order to provide help for the further study of the biological functions of mammalian ovarian granulosa cells, and provide optimization ideas for the in vitro oocyte maturation culture system.

Key words: ovary, granulosa cells, oocytes, mammals, proliferation and differentiation

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