2025-04-30
Surface-immobilized fibronectin conformation influences synovial fluid adsorption and film formation
2025-04-30 • Syeda Tajin Ahmed, Ummay Honey, Lenka Vítková, Diego R. Jaramillo Pinto, Warren Flores, Kaleb A. Cutter, Katelyn L. Lunny, Yidan Wen, Kevin J. De F...
ABSTRACT The articular cartilage extracellular matrix (ECM) is a complex network of biomolecules that includes fibronectin (FN). FN acts as an extracellular glue, controlling the assembly of other macromolecular constituents to the ECM. However, how FN participates in the binding and retention of synovial fluid components, the natural lubricant of articulated joints, to form a wear-protecting and lubricating film has not been established. This study reports on the role of FN and its molecular conformation in media…