Exosomes derived from miR-155-5p–overexpressing synovial mesenchymal stem cells prevent osteoarthritis via enhancing proliferation and migration, attenuating apoptosis, and modulating extracellular matrix secretion in chondrocytes

Zhirong Wang, Kai Yan, Gaoran Ge, Di Zhang, Jiaxiang Bai, Xiaobin Guo, Jing Zhou, Tianpeng Xu, Menglei Xu, Long Xiao, Yuefeng Hao, Dechun Geng