期刊
ADVANCED DRUG DELIVERY REVIEWS
卷 146, 期 -, 页码 289-305出版社
ELSEVIER
DOI: 10.1016/j.addr.2018.12.015
关键词
Chondrocytes; Cartilage; Mesenchymal stem cells; Differentiation; Chondrogenesis; Paracrine; Secretome; Cytoki nes; Gene therapy
资金
- AO Foundation
Once damaged, articular cartilage has a limited potential to repair. Clinically, a repair tissue is formed, yet, it is often mechanically inferior fibrocartilage. The use of monolayer expanded versus naive cells may explain one of the biggest discrepancies in mesenchymal stromal/stem cell (MSC) based cartilage regeneration. Namely, studies utilizing monolayer expanded MSCs, as indicated by numerous in vitro studies, report as a main limitation the induction of type X collagen and hypertrophy, a phenotype associated with endochondral bone formation. However, marrow stimulation and transfer studies report a mechanically inferior collagen I/II fibrocartilage as the main outcome. Therefore, this review will highlight the collagen species produced during the different therapeutic approaches. New developments in scaffold design and delivery of therapeutic molecules will be described. Potential future directions towards clinical translation will be discussed. New delivery mechanisms are being developed and they offer new hope in targeted therapeutic delivery. (C) 2019 The Authors. Published by Elsevier B.V.
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