The role of laminins in cartilaginous tissues: from development to regeneration
1 Stem Cell and Tissue Engineering Laboratory, Department of Orthopedics, West Virginia University, Morgantown, WV, USA
2 Department of Orthopedics, Orthopedics Institute, Subei People’s Hospital of Jiangsu Province, Yangzhou, Jiangsu, 225001, China
3 Faculty of Dentistry, National University of Singapore, Singapore, Republic of Singapore
4 Exercise Physiology, West Virginia University, Morgantown, WV, USA
5 Mary Babb Randolph Cancer Center, Robert C. Byrd Health Sciences Center, West Virginia University, Morgantown, WV, USA
Abstract
As a key molecule of the extracellular matrix, laminin provides a delicate microenvironment for cell functions. Recent findings suggest that laminins expressed by cartilage-forming cells (chondrocytes, progenitor cells and stem cells) could promote chondrogenesis. However, few papers outline the effect of laminins on providing a favorable matrix microenvironment for cartilage regeneration. In this review, we delineated the expression of laminins in hyaline cartilage, fibrocartilage and cartilage-like tissue (nucleus pulposus) throughout several developmental stages. We also examined the effect of laminins on the biological activities of chondrocytes, including adhesion, migration and survival. Furthermore, we scrutinized the potential influence of various laminin isoforms on cartilage-forming cells’ proliferation and chondrogenic differentiation. With this information, we hope to facilitate the understanding of the spatial and temporal interactions between cartilage-forming cells and laminin microenvironment to eventually advance cell-based cartilage engineering and regeneration.
Keywords
- Laminin
- cartilage
- regeneration
- stem cell
- matrix microenvironment
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