畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (5): 746-751.doi: 10.11843/j.issn.0366-6964.2015.05.009

• 遗传繁育 • 上一篇    下一篇

TGF-β3对体外培养的羊驼黑色素细胞的影响

刘彧,石占全,姬凯元,杨姗姗,范瑞文*   

  1. (山西农业大学动物科技学院,太谷 030801)
  • 收稿日期:2014-06-25 出版日期:2015-05-23 发布日期:2015-05-23
  • 通讯作者: 范瑞文,教授,主要从事动物解剖学与组织胚胎学教学与科研工作,E-mail:ruiwenfan@163.com
  • 作者简介:刘彧(1989-),女,山东安丘人,硕士生,主要从事羊驼毛色研究,Tel:0354-6288980,E-mail:18404966089@163.com
  • 基金资助:

    国家自然科学基金(31201868);山西省科技攻关项目(20120311024-2)

The Effect of TGF-β3 on the Melanocyte Cultured in vitro of Alpaca

LIU Yu,SHI Zhan-quan,JI Kai-yuan,YANG Shan-shan,FAN Rui-wen*   

  1. (College of Animal Science and Veterinary Medicine,Shanxi Agricultural University,Taigu 030801,China)
  • Received:2014-06-25 Online:2015-05-23 Published:2015-05-23

摘要:

为了研究转化生长因子β3(Transforming growth factor beta3,TGF-β3)对体外培养的羊驼皮肤黑色素细胞表型的影响。本研究在体外培养的羊驼皮肤黑色素细胞中添加不同浓度TGF-β3(6.25、12.5、25、50 ng•mL-1),通过实时监测和检测细胞增殖、毛色相关基因小眼畸形相关转录因子(Microphthalmia—associtated transcription factor,MITF)、酪氨酸酶(Tyrosinase,TYR)和酪氨酸酶相关蛋白2(Tyrosinase related protein 2,TYRP2)表达以及黑色素产量的变化。结果表明:(1)在羊驼皮肤黑色素细胞中添加50 ng•mL-1浓度的TGF-β3后,在前30 h内对细胞增殖有抑制效果,30 h后对细胞增殖有明显的长时程维持细胞数量作用,但对TGF-β3添加的剂量没有依赖性;(2)添加TGF-β3后,黑色素细胞内MITFTYRTYRP2的表达量均被下调,而且黑色素细胞产生黑色素的量也被下调,主要以添加50 ng•mL-1时下调最为显著。结果揭示,TGF-β3通过对羊驼黑色素细胞内MITFTYRTYRP2的表达的影响,并调控黑色素的产生,对黑色素细胞的生物学功能具有重要的影响。

Abstract:

The aim of this study was to investigate the effect of TGF-β3 on the phenotype of alpaca melanocyte cultured in vitro.The melanocyte proliferation,gene expression of MITF,TYR and TYRP2 at the transcript and translation level were detected and melanin production was analyzed after the addition of TGF-β3 with different concentrations of 6.25,12.5,25,50 ng•mL-1 in melanocyte medium.The results showed that:Compared to the normal melanocyte,the proliferation of melanocytes was inhibited within 30 h by the addition of 50 ng•mL-1 TFG-β3 and then the amount of cells could be maintained without dependence on the concentration of TGF-β3 after 30 h; MITFTYR and TYRP2 expression were down-regulated and melanin production also reduced after the addition of TGF-β3.The dose of 50 ng•mL-1 TGF-β3 caused more significant effects.The results suggested that TGF-β3 had the important effects on the biology of alpaca melanocyte by regulating the expression of MITFTYRTYRP2 and melanin production.

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