Fig. 4. Involvement of ASK1 in TNF-α stimulated RA fibroblast and their abrogation by TQ.
RA-FLS were treated with TQ (1–5 μM) for 2 hrs, followed by stimulation with TNF-α (20 ng/ml) for 30 min were lysed and probed for the expression of phospho-ASK1 (Thr845), ASK1, and phospho-c-jun (A). Densitometric analysis normalized with β-actin was done by Image Lab 5.1 and values are the mean ± SEM of experiments performed in four different RA-FLS donors (B). # p<0.05, ## p<0.01 for NS vs TNF-α; *p<0.05, **p<0.01 for TNF-α vs TQ.