中国临床解剖学杂志 ›› 2016, Vol. 34 ›› Issue (4): 419-422.doi: 10.13418/j.issn.1001-165x.2016.04.013

• 实验研究 • 上一篇    下一篇

巢蛋白在人胚胎消化管的表达

董丽萍1,2, 吴长初1, 李建明1, 刘冠兰1, 袁衡1, 伍赶球2   

  1. 1.长沙医学院人体解剖与组织胚胎学教研室,长沙医学院神经科学中心,  长沙   410219;
    2.中南大学基础医学院组织学与胚胎学教研室,  长沙   410013
  • 收稿日期:2015-09-21 出版日期:2016-07-25 发布日期:2016-08-03
  • 通讯作者: 伍赶球,副教授,Tel:13908473596,E-mail:wuganqiu @163.com
  • 作者简介:董丽萍(1984),女,讲师,硕士,研究方向:发育生物学,E-mail:ddongliping@163.com
  • 基金资助:

    湖南省教育厅一般项目(13C1113);湖南省自然科学基金(2015JJ6010); 湖南省教育厅科学研究重点项目(15A023); 湖南省卫生厅课题(C2016052); 长沙医学院院级课题(KY201463)

The expression of nestin in human fetal digestive tract

DONG Li-ping 1,2, WU Chang-chu1, LI Jian-ming1, LIU Guan-lan1, YUAN Heng1, WU Gan-qiu2   

  1. 1. Department of Anatomy, Histology and Embryology, Changsha Medical University; Neuroscience Research Center, Changsha Medical University, Changsha, Hunan 410219, China; 2.Department of Histology and Embryology, Xiangya School of Medicine, Central South University, Changsha, Human 410013, China
  • Received:2015-09-21 Online:2016-07-25 Published:2016-08-03
  • Contact: WU Gan-qiu, E-mail:wuganqiu@163.com

摘要:

目的 通过研究不同时期人胚胎消化管巢蛋白的表达及其变化探讨巢蛋白在消化管发育过程中的作用。  方法 取3~8月人胚胎食管、胃和小肠,常规石蜡切片,采用免疫组织化学法检测巢蛋白在胚胎消化管中的表达及分布。  结果 各胎龄段(3~8月)消化管均有巢蛋白的表达。巢蛋白在消化管主要表达在固有层、黏膜下层和肌层内的微血管和毛细血管壁上,且巢蛋白的表达随胎龄的增加而减少。与发育早期组相比,发育中期、晚期胚胎食管、胃和小肠组织中巢蛋白的表达显著减少(P<0.05),差异有统计学意义。而在发育中期和发育晚期巢蛋白的表达无显著性差异(P>0.05)。   结论 巢蛋白在胎儿消化管壁的微血管和毛细血管的管壁上表达,且随着胎儿发育,其表达逐渐减少,提示巢蛋白在这些器官组织的血管形成过程中起作用。

关键词: 胚胎, 消化管, 巢蛋白, 免疫组织化学

Abstract:

Objective To investigate the function of nestin during digestive tract development by analyzing expression of nestin in human fetal digestive tract. Methods Human fetal esophagus, stomach, and small intestine of 3-8 months old were obtained and fixed for paraffin sections. Immunohistochemical staining was used to determine the expression and distribution of nestin in fetal esophagus, stomach and small intestine. Results Nestin was expressed in the blood capillaries of lamina propria, submucosa and muscularis layers in digestive tract. The expression of nestin in these tissues was decreased with the development of fetus. There was statistical difference between nestin expression in early development stage and medium or late stage (P<0.05), but no statistical difference between medium and late development stages (P?0.05).  Conclusion Nestin is expressed in capillary of different tissues; however, the expression levels are decreased with the fetal development which indicates that nestin might play a role in angiogenesis.

Key words: Embryo, Digestive tract, Nestin, Immunohistochemical