AUTHOR=Yang Hongwei , Yang Haochen , Wang Qin , Ji Hanzhen , Qian Tianmei , Qiao Yusen , Shi Junfeng , Cong Meng TITLE=Mesenchymal stem cells and their extracellular vesicles: new therapies for cartilage repair JOURNAL=Frontiers in Bioengineering and Biotechnology VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2025.1591400 DOI=10.3389/fbioe.2025.1591400 ISSN=2296-4185