ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2016, Vol. 47 ›› Issue (1): 64-70.doi: 10.11843/j.issn.0366-6964.2016.01.009

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Effects of FSH and Wnt Signaling Pathway on Proliferation and Estrogen Secretion of Sheep Granulosa Cells

ZHAO Miao-miao1,JIANG Xiao-long1,CHEN Jian-wei1,HUANG Yang1,YAO Xiao-lei1,CAO Xia1,LI Peng-fei2,LÜ Li-hua1*   

  1. (1.College of Animal Science and Veterinary Medicine,Shanxi Agricultural University,Taigu 030801,China;2.College of Life Science,Shanxi Agricultural University,Taigu 030801,China)
  • Received:2015-05-06 Online:2016-01-23 Published:2016-01-23

Abstract:

This study aims to investigate the effect of Wnt signaling pathway on proliferation and estrogen secretion of sheep granulosa cells and to explore whether the effect was related to FSH(Follicular stimulating hormone,FSH).With or without FSH,sheep granulosa cells were cultured in medium with different concentrations of Wnt signaling pathway inhibitor IWR-1 for 168 h.Then,Guava ViaCount® Reagent was used to detect the changes of cell number and sheep ELISA kit was used to detect the changes of estrogen concentrations.The relative expression of CYP19 and CCND2,which are the target genes of FSH,was analyzed by qRT-PCR.The results showed that IWR-1 could cause a significant(P<0.05) reduction in the number of granule cells whether FSH existed or not.With the presence of FSH,the addition of IWR-1 could significantly(P<0.05) decrease estrogen concentration.When the concentration of IWR-1 was 1.0 μmol•L-1,its inhibitory effect on granulosa cells was of most obvious.Besides,IWR-1 decreased the abundance of CYP19 mRNA and CCND2 mRNA.In conclusion,Wnt signaling pathway can improve the biological function of sheep granulosa cells,and this function may be related to FSH.

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