ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2018, Vol. 49 ›› Issue (11): 2394-2401.doi: 10.11843/j.issn.0366-6964.2018.11.010

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Expression Profile and Function Analysis of PRSS35 in Bovine Follicle Granulosa Cells

BI Xi-lin1, WANG Kai1, LI Peng-fei2, JING Jiong-jie1, HAN Qi1, LÜ Li-hua1*   

  1. 1. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China;
    2. College of Life Sciences, Shanxi Agricultural University, Taigu 030801, China
  • Received:2018-07-16 Online:2018-11-23 Published:2018-11-23

Abstract:

The aim of this study was to explore the expression profile and analyze the function of serine protease 35 (PRSS35) in bovine follicular granulosa cells. Cattle dominant follicles (DF) and subordinate follicles (SF) were separated according their sizes measured using B-mode ultrasonography technology. The expression profile of PRSS35 was analyzed using qRT-PCR and Western blotting, and its location in DF and SF was detected by immunohistochemistry. The siRNA sequences of PRSS35 were designed and synthesized and PRSS35-gene-silenced GCs line was obtained. Estrogen (E2) concentration and cell apoptosis were detected through studying the effects of PRSS35 on growth and development of bovine follicular GCs. The results showed that:1) The expression of PRSS35 mRNA in DF was significantly higher than that in SF (P<0.001). 2) The PRSS35 was expressed both in DF and SF granular layer and theca layer. 3) The expression of RSS35 protein in DF was significantly higher than that in SF (P<0.01). 4) When PRSS35 gene was silenced, the percentage of apoptotic GCs was significantly increased (P<0.001), and the concentration of E2 in cell culture media was significantly decreased (P<0.01). The results suggested that PRSS35 was expressed both in bovine follicular granular layer and theca layer, and the PRSS35 expression was significantly higher in DF than that in SF. The proliferation of GCs was inhibited, and the concentration of E2 was reduced when PRSS35 gene was silenced, indicating the growth and development of bovine follicles were inhibited. This study provides a basis for further studying the relationship between PRSS35 and follicular development in cattle.

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