ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2016, Vol. 47 ›› Issue (2): 290-295.doi: 10.11843/j.issn.0366-6964.2016.02.011

Previous Articles     Next Articles

The Effect of lpa-miR-nov-66 on CDK5 Phosphorylation in Alpaca Melanocyte

ZHANG Jun-zhen,JI Kai-yuan,SHI Zhan-quan,LIU Yu,HU Shuai-peng,FAN Rui-wen*   

  1. (College of Animal Science and Veterinary Medicine, Shanxi Agricultural University,Taigu 030801,China)
  • Received:2015-07-25 Online:2016-02-23 Published:2016-02-23

Abstract:

The objective of this research was to investigate the effect of lpa-miR-nov-66 on cyclin dependent kinase 5 (CDK5) and its phosphoration on the pathway of melanogenesis in alpaca melanocytes.Following the transfection of alpaca melanocytes by lpa-miR-nov-66 in vitro,quantitative real-time PCR,immunocytochemistry,Western blotting and immunopricipitation were mainly used to determine the expression of the functional CDK5.The results showed that compared to the control,the over expression of lpa-miR-nov-66 in melanocytes resulted in decreased expression of CDK5 and increased expression of phosphoted CDK5 with significant difference (P<0.01);P35 was the activator of CDK5.And it was found that CDK5-dependent phosphorylation of TH was up-regulated with the higher activity(P<0.05).The results suggested that lpa-miR-nov-66 gave rise to up-regulation of phos-TH expression on the pathway of melanogenesis by functional CDK5 binding to P35,which was the intermediate link for the molecular mechanism of regulating melanogenesis.

CLC Number: