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人脐带间充质干细胞衍生的细胞外基质在体外可加速软骨细胞增殖及分化潜能。

Extracellular matrix derived by human umbilical cord-deposited mesenchymal stem cells accelerates chondrocyte proliferation and differentiation potential in vitro.

作者信息

Zhang Weixiang, Yang Jianhua, Zhu Yun, Sun Xun, Guo Weimin, Liu Xuejian, Jing Xiaoguang, Guo Ganggang, Guo Quanyi, Peng Jiang, Zhu Xiaofeng

机构信息

The People's Hospital of Lanxi, 1359th Shanxi Road, Lanxi, 321100, China.

Institute of Orthopedics, Chinese PLA General Hospital, 28th Fuxing Road, Beijing, 100853, China.

出版信息

Cell Tissue Bank. 2019 Sep;20(3):351-365. doi: 10.1007/s10561-019-09774-7. Epub 2019 Jun 19.

Abstract

The extracellular matrix (ECM) is a dynamic and intricate three-dimensional (3D) microenvironment with excellent biophysical, biomechanical, and biochemical properties that may directly or indirectly regulate cell behavior, including proliferation, adhesion, migration, and differentiation. Compared with tissue-derived ECM, cell-derived ECM potentially has more advantages, including less potential for pathogen transfer, fewer inflammatory or anti-host immune responses, and a closer resemblance to the native ECM microenvironment. Different types of cell-derived ECM, such as adipose stem cells, synovium-derived stem cells and bone marrow stromal cells, their effects on articular chondrocytes which have been researched. In this study, we aimed to develop a 3D cell culture substrate using decellularized ECM derived from human umbilical cord-derived mesenchymal stem cells (hUCMSCs), and evaluated the effects on articular chondrocytes. We evaluated the morphology and components of hUCMSC-derived ECM using physical and chemical methods. Morphological, histological, immunohistochemical, biochemical, and real-time PCR analyses demonstrated that proliferation and differentiation capacity of chondrocytes using the 3D hUCMSC-derived ECM culture substrate was superior to that using non-coated two-dimensional plastic culture plates. In conclusion, 3D decellularized ECM derived from hUCMSCs offers a tissue-specific microenvironment for in vitro culture of chondrocytes, which not only markedly promoted chondrocyte proliferation but also preserved the differentiation capacity of chondrocytes. Therefore, our findings suggest that a 3D cell-derived ECM microenvironment represents a promising prospect for autologous chondrocyte-based cartilage tissue engineering and regeneration. The hUCMSC-derived ECM as a biomaterial is used for the preparation of scaffold or hybrid scaffold products which need to further study in the future.

摘要

细胞外基质(ECM)是一种动态且复杂的三维(3D)微环境,具有出色的生物物理、生物力学和生化特性,可直接或间接调节细胞行为,包括增殖、黏附、迁移和分化。与组织来源的ECM相比,细胞来源的ECM可能具有更多优势,包括病原体传播的可能性更小、炎症或抗宿主免疫反应更少,以及与天然ECM微环境更相似。不同类型的细胞来源的ECM,如脂肪干细胞、滑膜来源的干细胞和骨髓基质细胞,它们对关节软骨细胞的影响已得到研究。在本研究中,我们旨在开发一种使用源自人脐带间充质干细胞(hUCMSCs)的脱细胞ECM的3D细胞培养底物,并评估其对关节软骨细胞的影响。我们使用物理和化学方法评估了hUCMSC来源的ECM的形态和成分。形态学、组织学、免疫组织化学、生化和实时PCR分析表明,使用3D hUCMSC来源的ECM培养底物培养的软骨细胞的增殖和分化能力优于使用未包被的二维塑料培养板培养的软骨细胞。总之,源自hUCMSCs的3D脱细胞ECM为软骨细胞的体外培养提供了一种组织特异性微环境,不仅显著促进了软骨细胞的增殖,还保留了软骨细胞的分化能力。因此,我们的研究结果表明,3D细胞来源的ECM微环境在基于自体软骨细胞的软骨组织工程和再生方面具有广阔前景。hUCMSC来源的ECM作为一种生物材料用于制备支架或混合支架产品,这在未来需要进一步研究。

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