Acta Veterinaria et Zootechnica Sinica ›› 2020, Vol. 51 ›› Issue (11): 2710-2719.doi: 10.11843/j.issn.0366-6964.2020.11.010

• ANIMAL BIOTECHNOLOGY AND REPRODUCTION • Previous Articles     Next Articles

Expression and Localization of Integrin αv in Different Parts of the Fallopian Tube in Reproduction Cycle of Yak

YANG Shanshan, HE Honghong, PAN Yangyang, DUAN Hongwei, LIU Minqing, GAO Zechuan, ZHAO Ling, HAN Xiaohong, WANG Yaying, CUI Yan, YU Sijiu*   

  1. Gansu Province Livestock Embryo Engineering Research Center, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2020-05-06 Online:2020-11-25 Published:2020-11-20

Abstract: The objective of this study was to explore the expression differences of integrin αv in different parts of the fallopian tube at different reproduction stages of yak, and provide some important theoretical foundations for understanding the effect of integrin αv on the reproductive performance of yak. The samples of the tubal umbrella, ampulla, and isthmus of healthy female yaks (3-6 years old) during follicular, luteal and pregnancy stages were collected, the fallopian tubes of the follicular phase, the luteal phase and the pregnancy phase were divided into 9 groups according to the umbrella, ampulla and isthmus. Real-time PCR (qRT-PCR) and Western-blotting (WB) were used to detect the expression of integrin αv gene and protein. The expression of integrin αv protein was localized by immunohistochemistry. Results: 1) qRT-PCR results showed that, during the follicular phase, the expression of the integrin αv gene in the umbrella of the fallopian tube was the highest and extremely significantly higher than those in the ampulla and isthmus (P<0.01). During the luteal phase, the expression of the integrin αv gene in the isthmus of the fallopian tube was the highest and extremely significantly higher than those in the umbrella and ampulla (P<0.01). During the pregnancy phase, the expression of the integrin αv gene in the umbrella of the fallopian tube was the highest and extremely significantly higher than those in the ampulla and isthmus (P<0.01). 2) Western-blotting results showed that, during the follicular phase, the expression of integrin αv protein in the umbrella of the fallopian tube was the highest and extremely significantly higher than those in the ampulla and isthmus (P<0.01). During the luteal phase, the expression of integrin αv protein in the isthmus of the fallopian tube was the highest and extremely significantly higher than those in the umbrella and ampulla (P<0.01). During the pregnancy phase, the expression of integrin αv protein in tubal isthmus and umbrella was not significantly different, but these were extremely significantly higher than that in the ampulla (P<0.01). 3) The results of immunohistochemistry showed that integrin αv protein was positively expressed in ciliated cells, secretory cells, basal cells, muscular layers and serous glands of the fallopian tube umbrella, ampulla and isthmus. The results indicated that the expression of integrin αv in different parts of the fallopian tube at different reproduction stages of the yak were significantly different, which showed that αv might be involved in a series of reproductive processes such as fertilization and early embryonic development, the results provided basic information for the study of yak's reproductive performance.

Key words: integrin αv, yak, fallopian tube, reproduction cycle, expression

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