Tissue Eng Regen Med:人眼轮匝肌肌源性干细胞的体外和体内成骨

2019-01-09 MedSci MedSci原创

治疗骨缺损的细胞的疗法需要具有成骨潜力的干细胞来源。肌肉的病理性骨化表明人体骨骼肌含有成骨祖细胞。然而,肌肉样本通常通过创伤性活组织检查程序获得,该程序引起供体的疼痛和发病。在这里,我们确定了一种新的骨骼肌干细胞替代来源(SMSCs),而不会给捐赠者带来并发症。使用两步电镀方法获得从人眼轮匝肌(OOM)片段分离的贴壁细胞,其目前在眼科整容手术期间丢弃。分别评估细胞生长动力学,免疫表型和体外多谱系分

治疗骨缺损的细胞的疗法需要具有成骨潜力的干细胞来源。肌肉的病理性骨化表明人体骨骼肌含有成骨祖细胞。然而,肌肉样本通常通过创伤性活组织检查程序获得,该程序引起供体的疼痛和发病。在这里,我们确定了一种新的骨骼肌干细胞替代来源(SMSCs),而不会给捐赠者带来并发症。

使用两步电镀方法获得从人眼轮匝肌(OOM)片段分离的贴壁细胞,其目前在眼科整容手术期间丢弃。分别评估细胞生长动力学,免疫表型和体外多谱系分化能力。此外,用GFP基因转导成骨诱导的细胞,加载到多孔β-磷酸三钙(β-TCP)生物陶瓷上,并移植到无胸腺小鼠的皮下部位。评估异位骨形成并检测体内细胞转化。

结果现实,OOM衍生的细胞在形状上是成纤维细胞,在生长中克隆形成,并且显示出与SMSCs类似的表型和行为特征。特别地,这些细胞可以通过细胞外基质钙化和增强的碱性磷酸酶(ALP)活性和骨钙素(OCN)产生在体外诱导成成骨细胞。在植入后6周,在载有细胞的生物陶瓷中发现了新的骨形成。通过使用GFP标记技术,检测到这些肌细胞参与体内异位成骨过程。

综上所述,这些数据表明,人类OOM组织是骨祖细胞用于骨修复和再生的有价值且无创的资源。

原始出处:

Liu G, Liao C, Chen X, Wu Y. In Vitro and In Vivo Osteogenesis of Human Orbicularis Oculi Muscle-Derived Stem Cells. Tissue Eng Regen Med. 2018 May 29;15(4):445-452. doi: 10.1007/s13770-018-0122-1. eCollection 2018 Aug.

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    2019-05-16 xuyu
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    2019-01-12 spoonycyy
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    2019-01-10 zhaojie88
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