中华眼视光学与视觉科学杂志
中華眼視光學與視覺科學雜誌
중화안시광학여시각과학잡지
CHINESE JOURNAL OF OPTOMETRY OPHTHALMOLOGY AND VISUAL SCIENCE
2010年
6期
438-440
,共3页
蒋自培%温积权%徐建国%孔丽萍
蔣自培%溫積權%徐建國%孔麗萍
장자배%온적권%서건국%공려평
骨髓间充质干细胞,人%上皮细胞,角膜%细胞分化
骨髓間充質榦細胞,人%上皮細胞,角膜%細胞分化
골수간충질간세포,인%상피세포,각막%세포분화
Mesenchymal stem cell,human%Epithelial cells,cornea%Cell differentiation
目的 探讨人骨髓间充质干细胞(MSC)体外分化为角膜上皮细胞的可行性.方法 实验研究.分别取第3代人MSC和自行培养的第3代人角膜基质细胞共同培养1周,实验组在Transwell共培养体系中培养,对照组不放置Transwell小室培养.1周后,观察实验组和对照组中人MSC光镜特征、间接免疫细胞化学染色和电镜结构,对被诱导分化的细胞进行综合鉴别.结果 第3代人MSC和人角膜基质细胞在体外培养条件下均能够较快贴壁生长.两种细胞共同培养1周后,可见部分细胞形态上呈上皮细胞特征,单克隆抗体AE1染色呈阳性,电镜下可见微绒毛、桥粒和张力丝等典型上皮细胞结构特征.结论 体外培养的人MSC在人角膜基质细胞的诱导下可能会分化为人角膜上皮样细胞.
目的 探討人骨髓間充質榦細胞(MSC)體外分化為角膜上皮細胞的可行性.方法 實驗研究.分彆取第3代人MSC和自行培養的第3代人角膜基質細胞共同培養1週,實驗組在Transwell共培養體繫中培養,對照組不放置Transwell小室培養.1週後,觀察實驗組和對照組中人MSC光鏡特徵、間接免疫細胞化學染色和電鏡結構,對被誘導分化的細胞進行綜閤鑒彆.結果 第3代人MSC和人角膜基質細胞在體外培養條件下均能夠較快貼壁生長.兩種細胞共同培養1週後,可見部分細胞形態上呈上皮細胞特徵,單剋隆抗體AE1染色呈暘性,電鏡下可見微絨毛、橋粒和張力絲等典型上皮細胞結構特徵.結論 體外培養的人MSC在人角膜基質細胞的誘導下可能會分化為人角膜上皮樣細胞.
목적 탐토인골수간충질간세포(MSC)체외분화위각막상피세포적가행성.방법 실험연구.분별취제3대인MSC화자행배양적제3대인각막기질세포공동배양1주,실험조재Transwell공배양체계중배양,대조조불방치Transwell소실배양.1주후,관찰실험조화대조조중인MSC광경특정、간접면역세포화학염색화전경결구,대피유도분화적세포진행종합감별.결과 제3대인MSC화인각막기질세포재체외배양조건하균능구교쾌첩벽생장.량충세포공동배양1주후,가견부분세포형태상정상피세포특정,단극륭항체AE1염색정양성,전경하가견미융모、교립화장력사등전형상피세포결구특정.결론 체외배양적인MSC재인각막기질세포적유도하가능회분화위인각막상피양세포.
Objective To explore the feasibility of the transdifferentiation of human mesenchymal stem cell (MSC) into corneal epithelial cells in vitro. Methods Experimental study.The third passage human MSC and the third passage corneal stromal fibroblasts were co-cultured in a Transwell culture system for 1 week. The human MSC were observed and identified by light microscopy, scanning and transmission electron microscopy, and comprehensive indirect immunocytochemistry staining in the induced and control groups. Results Both the third passage human MSC and the third passage corneal stromal fibroblast cells could adhere and grow rapidly.After co-culture with corneal stromal fibroblasts for 1 week, the morphology of some induced human MSC changed into epithelial-like cells. Some induced human MSC showed positive staining for monoclonal antibody AE1, which were typical epithelium cells with a large quantity of microvilli,desmosomes and tonofilaments that were observed under electron microcopy. Conclusion The data suggests that human MSC may have the potential to transdifferentiate into human corneal epithelial-like cells in vitro.