ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2015, Vol. 46 ›› Issue (11): 1944-1951.doi: 10.11843/j.issn.0366-6964.2015.11.005

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The Expression Profiles and Function Analysis of miR-133 in Goat Skeletal Muscle Tissue and Cell

LING Ying-hui1,2,3,WANG Li-juan1,2,WANG Kang-yan1,2,LI Yun-sheng1,2,DING Jian-ping1,2,ZHANG Yun-hai1,2,ZHANG Xiao-rong1,2,3*   

  1. (1.College of Animal Science and Technology,Anhui Agricultural University,Hefei 230036,China;2.Local Animal Genetic Resources Conservation and Biobreeding Laboratory of Anhui Province,Hefei 230036,China;3.Engineering Research Center of Reproduction and Breeding in Sheep of Anhui Province,Hefei 230036,China)
  • Received:2015-05-04 Online:2015-11-23 Published:2015-11-23

Abstract:

The purpose of this experiment was to study the expression of miR-133 and its target gene SRF in skeletal muscle tissue and cells in goat,and the effects of miR-133 on target gene(SRF).The qRT-PCR was used to detect different expression of miR-133 and its target gene in different tissues of newborn,7 months and 18 months old Anhui white goat and Boer goat(heart,liver,spleen,lung,kidney,small intestine,fat,longissimus dorsi) and different goat skeletal muscle satellite cells(F6,F9,F12);qRT-PCR and the Western blot was used to detect the mRNA of target gene and protein expression level.The results of qRT-PCR showed that the expression level of miR-133 in myocardium and longissimus dorsi muscle was higher than that in other tissues,the expression level of the target gene SRF was different from miR-133 in goat;The expression level of miR-133 in skeletal muscle satellite cells increased with the cell generations;That regulation of miR-133 on SRF protein expression occurred at the post transcriptional level by qRT-PCR and Western blot.The results showed that miR-133 was expected to become a new marker of goat skeletal muscle growth and development;miR-133 was involved in the regulation of proliferation and differentiation of goat by inhibiting the expression of SRF protein in the post transcriptional level,thereby affecting the goat skeletal muscle development.

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