畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (1): 38-45.doi: 10.11843/j.issn.0366-6964.2014.01.006

• 遗传繁育 • 上一篇    下一篇

视黄酸及Stra8基因联合作用对雄性鸡胚胎干细胞分化的影响

张振韬1,王丹1,施青青1,ELSAYED A K1,2,张亚妮1,韦光辉1,朱睿1,左其生1,李东1,刘堃1,李碧春1*   

  1. (1.扬州大学动物科学与技术学院,扬州 225009;2.College of Veterinary Medicine,Suez Canal University,Ismailia 41522,Egypt)
  • 收稿日期:2013-08-14 出版日期:2014-01-23 发布日期:2014-01-23
  • 通讯作者: 李碧春,教授,E-mail:yubcli@yzu.edu.cn
  • 作者简介:张振韬,(1986-),男,甘肃兰州人,博士生,主要从事动物胚胎工程研究,E-mail:yzuztzhang@gmail.com
  • 基金资助:

    国家自然科学基金(31272429);江苏省研究生培养创新工程(CXLX12_0934)

Effect of Combination of Retinoic Acid and Stra8 Gene on Male cESCs Differentiation

ZHANG Zhen-tao1,WANG Dan1,SHI Qing-qing1,ELSAYED A K1,2,ZHANG Ya-ni1,WEI Guang-hui1,ZHU Rui1,ZUO Qi-sheng1,LI Dong1,LIU Kun1,LI Bi-chun1*   

  1. (1.College of Animal Science and Technology,Yangzhou University,Yangzhou 225009,China;2.College of Veterinary Medicine,Suez Canal University,Ismailia 41522,Egypt)
  • Received:2013-08-14 Online:2014-01-23 Published:2014-01-23

摘要:

旨在研究视黄酸(All-trans retinoic acid,RA)及Stra8Stimulated by retinoic acid gene 8)基因联合作用对雄性鸡胚胎干细胞(Chicken embryonic stem cellscESCs)分化的影响。选用PCR方法鉴定雄性cESCs为研究对象,转染Stra 8基因,对Stra8基因阳性cESCs使用RA进行12 d连续诱导,同时设立Stra8基因转染组、RA诱导组及空白组对照,各组均进行3次重复试验。细胞形态学、qRT-PCR检测RAStra8基因对cESCs分化的影响。结果表明,转染Stra8基因进行RA诱导,在诱导12 d后,出现精原干细胞样的圆形小克隆,其他组cESCs出现类胚体或解体;qRT-PCR鉴定发现各组中干细胞标记基因表达量随着培养时间的延长逐渐下降,同时检测到生殖细胞相关基因表达,转染Stra8基因并使用RA诱导组中表达量均高于对照组(P<0.01),6 d表达量达到最高,然后逐渐下降。Stra8基因和RA的联合作用能够促进cESCs向着生殖细胞方向的分化,不仅改变了原有细胞形态,同时出现了生殖相关基因的表达。通过该方法可以在体外建立一个ESCs诱导分化模型,将为生殖细胞的发生、增殖、分化及调控机理的研究和人类不孕不育症的治疗奠定良好的基础。

Abstract:

This experiment was conducted to explore the effect of combination of retinoic acid and Stra8 gene on male cESCs
differentiation.The sex of cESCs was determined by PCR to select only the male cESCs which divided into four groups
(1) both Stra8
transfected and RA
-induced group(2) only Stra8 transfected group(3) only RA-induced group and (4) control group.Each group was repeated for three times.Cell morphology changes observations and qRT-PCR were performed to detect the effect of RAStra8 geneand their combination on male cESCs differentiation.The results showed that there were small and round clones in the Stra8 transfected and RA-induced group in contrast to the other groups in which the cESCs were disintegrated.The expression quantity of stem cell marker genes was gradually declined in each group with extension of the incubation time.In the Transected Stra8 and RA induced groupthe germ line related genes expressions were higher than that of the other groups (P<0.05) with the maximum amount at 6 d post induction and then gradually decreased.These results indicated that RA and Stra8 gene combination can promote the male cESCs differentiation to germ cell direction synactic that was proved by both significant cellular morphological changes and also the highly expressed germ cell marker genes.Through this induction systemit will not only establish a good foundation for germ cell induction and differentiationbut also provide basic idea for the late stage cESCs differentiation mechanisms.

中图分类号: