ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2015, Vol. 46 ›› Issue (2): 323-331.doi: 10.11843/j.issn.0366-6964.2015.02.021

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Cloning and Bioinformatics Analysis of Porcine SOCS4 cDNA and Its Dynamic during Heat Stress

WANG Ping1,JU Xiang-hong 2,3,5*,YONG Yan-hong2,JIA Ru-min1,MA Ming-long1,ZHAO Yun-tao4,LIAO Ming3,5   

  1. (1.Department of Animal Science,Guangdong Ocean University,Zhanjiang 524088,China;2.Department of Veterinary Medicine,Guangdong Ocean University,Zhanjiang 524088,China;3.Key Laboratory of Animal Disease Control and Prevention,Ministry of Agriculture,Guangzhou 510642,China;4.Modern Biochemical Center,Guangdong Ocean University,Zhanjiang 524088,China;5.College of Veterinary Medicine,South China Agricultural University,Guangzhou 510642,China)
  • Received:2014-06-12 Online:2015-02-23 Published:2015-02-23

Abstract:

 The aim of this study was to systematically elucidate the mechanism of heat stress-induced swine immunosuppression,and inflammatory factors disorder.The TZ (Luchuan pig×Landrace pig)porcine SOCS4 gene was cloned in this study,it consisted of 1 326 bp of ORF encoding a protein with 441 amino acids,285 amino acids of them formed the N-terminal of SOCS4.It shared high amino acid sequence identity with that in Landrace pigs(100.0%),Bos Taurus(96.1%),Capra Hircus(96.1%),Felis catus (95.2%),Equus caballus(94.6%),Canis lupus familiaris (94.3%),Homo sapiens  (93.0%) and Mus musculus (88.1%).The molecular weight of SOCS4 protein was 50.5 ku,and PI was 6.60.qRT-PCR results showed that the expression of SOCS4 in thymus gland of TZ pigs was significantly upregulated on day 3 and 9 after heat stress began (P≤0.05).As well in mesenteric lymph node,where it significantly upregulated on day 1 and 6 (P≤0.01).The expression of SOCS4 decreased  significantly in small intestine and spleen of TZ pigs during heat stress (P≤0.05).The TZ porcine SOCS4 cDNA was cloned successfully,and a significant changes of SOCS4 mRNA expression were appeared in heat stressed pigs with a tissue and time dependence manner.

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