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首页> 外文期刊>Journal of orthopaedic research >In vivo mechanical condition plays an important role for appearance of cartilage tissue in ES cell transplanted joint.
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In vivo mechanical condition plays an important role for appearance of cartilage tissue in ES cell transplanted joint.

机译:体内机械状况对于ES细胞移植关节中软骨组织的外观起着重要作用。

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摘要

The objective of this study was to evaluate the effects of the mechanical environment on the formation of cartilage tissue in transplanted embryonic stem (ES) cells. Full-thickness osteochondral defects were created on the patella groove of SD rats, and ES cells (CCE ES cells obtained from 129/Sv/Ev mice and Green ES FM260 ES cells obtained from 129SV [D3] - Tg [NCAG-EGFP] CZ-001-FM260Osb mice) were transplanted into the defects embedded in collagen gel. The animals were randomly divided into either the joint-free group (JF group) or the joint-immobilized group (JI group) for 3 weeks after a week postoperatively. The results showed that cartilage-like tissue formed in the defects of the JF group whereas large teratomatous masses developed in the defects of the JI group. Some parts of the cartilage-like tissue and the teratomatous masses were positively stained with immunostain for GFP when the Green ES FM260 ES cells were transplanted. It is suggested that the environment plays an important role for EScells in the process of repairing cartilage tissue in vivo.
机译:这项研究的目的是评估机械环境对移植的胚胎干(ES)细胞中软骨组织形成的影响。在SD大鼠的the骨沟和ES细胞(从129 / Sv / Ev小鼠获得的CCE ES细胞和从129SV [D3]-Tg [NCAG-EGFP] CZ获得的Green ES FM260 ES细胞)上形成了全厚度的骨软骨缺损-001-FM260Osb小鼠)移植到胶原凝胶中嵌入的缺损中。术后一周一周将动物随机分为无关节组(JF组)或关节固定组(JI组)。结果表明,在JF组的缺损中形成了软骨样组织,而在JI组的缺损中形成了较大的畸胎瘤。移植Green ES FM260 ES细胞后,用GFP免疫染色对软骨样组织的某些部位和畸胎瘤块进行阳性染色。建议环境在体内修复软骨组织的过程中对ES细胞起重要作用。

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