ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2019, Vol. 50 ›› Issue (8): 1525-1535.doi: 10.11843/j.issn.0366-6964.2019.08.001

• REVIEW • Previous Articles     Next Articles

Research Progress on the Regulative Role of Retinoid X Receptors Gene in Animal Seasonal Estrus and Estrous Cycle

LI Huazhen1,2, DI Ran1, LIU Qiuyue1, HU Wenping1, WANG Xiangyu1, MA Lin1, LIU Wujun2*, CHU Mingxing1*   

  1. 1. Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
  • Received:2019-01-18 Online:2019-08-23 Published:2019-08-23

Abstract: Retinoid X receptors (RXRs) are members of the ligand-dependent nuclear receptor family. Many studies in the past have revealed the importance of RXRs in animal's seasonal estrus and estrous cycles, but RXRs must form dimers with themselves or other nuclear receptors to work. Different dimers play different roles, therefore their molecular mechanism of playing role in reproduction is difficult to study. Some studies have shown that RXRs expressed at different levels in the hypothalamic-pituitary-gonadal (HPG) axis tissues of seasonal estrus animals. Dimers of THRs/RXRs, RARs/RXRs and PPARs/RXRs can stimulate the release of GnRH in the hypothalamus to regulate seasonal estrus and proliferation of ovarian granulosa cells, remodeling of ovarian vascular tissue, and steroid production, which affect the animal estrous cycle conversion. This paper summarizes the role of RXRs and their dimers in the different reproductive activities related to seasonal estrus and estrous cycle of animals, and provides a reference for future research.

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