Table 1.

Summary of effects of p38 MAPK inhibition on proteoglycan synthesis

	Proteoglycan synthesis
	Basal	+ TGF-β	+ IGF-1/FCS
SB	No change	-	No change
IL-1	- -	- -	- -
IL-1 + SB*	+	No change	No change

*Relative to IL-1 alone. FCS, fetal calf serum; IGF-1, insulin-like growth factor 1; SB, SB 203580; TGF-β, transforming growth factor beta.