Author:
Zhou Xinghua,Liang Hansi,Hu Xiaohan,An JinNan,Ding Sisi,Yu Shuichang,Liu Cuiping,Li Fang,Xu Yunyun
Abstract
AbstractIn the past decade, mesenchymal stem cells (MSCs) have been widely used for the treatment of osteoarthritis (OA), and exosomes may play a major role. Here, we acquired a special kind of MSCs from the bone marrow of surgically resected tissue from the hand of a patient with polydactyly. Experiments were focused on the role of polydactyly bone marrow-derived MSCs (pBMSCs) in osteoarthritis. The results showed that the pBMSCs had a greater ability than the BMSCs to differentiate into chondrocytes. Mechanistically, the expression of BMP4 was significantly higher in the pBMSCs than it was in the BMSCs. Furthermore, we showed that the migration and proliferation of chondrocytes were stimulated by exosomes secreted by pBMSC (pBMSC-EXOs). Notably, the downregulation of BMP4 in pBMSCs by siRNA inhibited both the chondrogenic differentiation potential of the MSCs and the function of the chondrocytes. In addition, the injection of pBMSC-EXOs and BMSC-EXOs attenuated OA in an OA mouse model, but the pBMSC-EXOs had a superior therapeutic effect compared with that of the BMSC-EXOs. Taken together, the data indicate that pBMSCs have greater ability to differentiate into chondrocytes and regulate chondrocyte formation through BMP4 signaling. Therefore, pBMSC-EXOs may represent a novel treatment for OA.
Funder
Natural Science Research of Jiangsu Higher Education Institutions of China
Jiangsu Provincial Medical Youth Talent
Natural Science Foundation of Jiangsu Province
the Science and Technology Project of Suzhou
Publisher
Springer Science and Business Media LLC
Subject
Cancer Research,Cell Biology,Cellular and Molecular Neuroscience,Immunology
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