ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2018, Vol. 49 ›› Issue (4): 685-692.doi: 10.11843/j.issn.0366-6964.2018.04.004

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Effect of Wnt10b on the Expression of Precursor Adipocytes Differentiation Related Genes in Goat

LIN Sen1,2, LIN Ya-qiu1, ZHU Jiang-jiang2, XU Qing1, ZHAO Yue1, CHI Yong-dong1, WANG Yong1,2*   

  1. 1. College of Life Science and Technology, Southwest Minzu University, Chengdu 610041, China;
    2. Key Laboratory of Sichuan Province for Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Exploitation, Chengdu 610041, China
  • Received:2017-09-12 Online:2018-04-23 Published:2018-04-23

Abstract:

The aim of this study was to investigate the effect of Wnt10b gene on the precursor adipocytes differentiation of goat by RNA interference. The goat Wnt10b siRNA sequence was designed and compounded,and the goat subcutaneous and intramuscular precursor adipocytes were obtained by collagenase digestion. The effect of Wnt10b gene expression on the cell differentiation and adipocyte differentiation marker genes expression were detected by using the effective siRNA sequence to interfere the expression of Wnt10b gene in goat subcutaneous and intramuscular precursor adipocytes.The results showed that an effective goat Wnt10b siRNA sequence was obtained,and the expression of Wnt10b was down-regulated by 63% (P<0.01) and 67% (P<0.01), respectively after transfection in goat subcutaneous and intramuscular precursor adipocytes. Results of Oil red O staining showed that the accumulation of lipid droplets were inhibited significantly by Wnt10b RNAi in goat subcutaneous and intramuscular adipocytes. The C/EBPβ, PPARγ,SREBP1 and Pref1 genes were extremely significantly down-regulated in the subcutaneous precursor adipocyte differentiation after Wnt10b RNAi (P<0.01), LPL was significantly down-regulated (P<0.05). The AP2 and LPL were extremely significantly down-regulated (P<0.01), C/EBPβ was significantly down-regulated (P<0.05), and Pref1 was extremely significantly up-regulated (P<0.01) in intramuscular precursor adipocytes differentiation. In this study, it was found that Wnt10b gene could promote the differentiation of goat subcutaneous precursor adipocytes by regulating the expression of C/EBPβ, PPARγ, SREBP1 and LPL, and promote the differentiation of goat intramuscular precursor adipocytes by regulating the expression of AP2, LPL, C/EBPβ and Pref1.

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