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大鼠下颌骨间充质干细胞修复临界大小颅骨缺损的成骨潜能

Osteogenic potential of mesenchymal stem cells from rat mandible to regenerate critical sized calvarial defect.

作者信息

Lee Dong Joon, Kwon Jane, Current Luke, Yoon Kun, Zalal Rahim, Hu Xiangxiang, Xue Peng, Ko Ching-Chang

机构信息

Oral and Craniofacial Health Sciences Research and North Carolina Oral Health Institute, School of Dentistry, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.

Department of Orthodontics, School of Dentistry, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.

出版信息

J Tissue Eng. 2019 Mar 12;10:2041731419830427. doi: 10.1177/2041731419830427. eCollection 2019 Jan-Dec.

Abstract

Although bone marrow-derived mesenchymal stem cells (MSCs) have been extensively explored in bone tissue engineering, only few studies using mesenchymal stem cells from mandible (M-MSCs) have been reported. However, mesenchymal stem cells from mandible have the potential to be as effective as femur-derived mesenchymal stem cells (F-MSCs) in regenerating bone, especially in the orofacial regions, which share embryonic origin, proximity, and accessibility. M-MSCs were isolated and characterized using mesenchymal stem cell-specific markers, colony forming assay, and multi-potential differentiation. osteogenic potential, including proliferation, osteogenic gene expression, alkaline phosphatase activity, and mineralization, was examined and compared. Furthermore, bone formations of F-MSCs and M-MSCs in rat critical sized defect were evaluated using microCT and histology. M-MSCs from rat could be successfully isolated and expanded while preserving their MSC's characteristics. M-MSCs demonstrated a comparable proliferation and mineralization potentials and bone formation as F-MSCs. M-MSCs is a promising cell source candidate for craniofacial bone tissue engineering.

摘要

尽管骨髓间充质干细胞(MSCs)已在骨组织工程中得到广泛研究,但仅有少数关于使用下颌骨间充质干细胞(M-MSCs)的研究报道。然而,下颌骨间充质干细胞在骨再生方面有可能与股骨来源的间充质干细胞(F-MSCs)一样有效,尤其是在具有共同胚胎起源、相近位置和易获取性的口腔颌面部区域。利用间充质干细胞特异性标志物、集落形成试验和多能分化对M-MSCs进行分离和鉴定。检测并比较了其成骨潜能,包括增殖、成骨基因表达、碱性磷酸酶活性和矿化情况。此外,使用显微CT和组织学方法评估了F-MSCs和M-MSCs在大鼠临界尺寸骨缺损中的骨形成情况。大鼠的M-MSCs能够成功分离并扩增,同时保留其间充质干细胞的特性。M-MSCs表现出与F-MSCs相当的增殖和矿化潜能以及骨形成能力。M-MSCs是颅面部骨组织工程中一种有前景的细胞来源候选者。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/01eb/6415471/36719d374f0f/10.1177_2041731419830427-fig1.jpg

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