Basic fibroblast growth factor mediates transduction of mechanical signals when articular cartilage is loaded.
OBJECTIVE: To determine whether the basic fibroblast growth factor (bFGF) mediates signal transduction in articular cartilage in response to mechanical loading. METHODS: Articular cartilage from porcine metacarpophalangeal or knee joints was cyclically loaded (62.5-250N) for 2 minutes in the absence or presence of a bFGF receptor inhibitor, SB 402451 (250 nM). Activation of the extracellularly regulated kinase MAP kinase ERK was measured by Western blot analysis. Changes in protein synthesis...Expand abstract
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