Distribution and features of the optic cup stem cells in embryonic rat at tailbud stage
- VernacularTitle:大鼠尾芽胚视杯干细胞的分布与特征
- Author:
Xiaoyong HUANG
;
Zhengqin YIN
;
Shijun WANG
- Publication Type:Journal Article
- Keywords:
Optic cup stem cell;
Cell culture
- From:
Chinese Journal of Ocular Fundus Diseases
2001;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the distribution and features of the optic cup stem cells in embryonic rat at tailbud stage. Methods The distribution of optic cup stem cells in optic cup tissue in 12.5-embryonic-day-old rats was observed by immunohistochemistry. The separated cells from optic cup were cultured with serum-free media, and immunofluorescence technique was used to detect the ability of hyperplasia of stem cells and expression of CHX10 antigen and specific antigens of mature retinal cells before and after differentiation. Results The optic cup stem cells in embryonic rat at tailbud stage were mainly located at inner, outer, and marginal layer of optic cup. No expression of specifically marked protein of mature retinal cells was detected. The cells separated from optic cup had the ability of single-cell clone, positive expression of CHX10 and expression of several specific antigens of mature retinal cells after the inducement, including Thy1.1, glial fibrillary acidic protein (GFAP), protein kinase C (PKC) ?, and rhodopsin. Conclusion Optic cup of 12.5-embryonic-day-old rats composes of undifferentiated cells, and the stem cells are mainly located in optic cup inner and marginal. High ability of hyperplasia of the optic cup stem cells cultured in vitro is found. The cells, which are retinal stem cells, can express several specifically marked proteins of mature retinal cells after inducement and differentiation.
