p38 and JNK are involved in TNFα-induced hTASK3 current enhancement. Current-voltage plot and histogram (mean ± S.E. (error bars)) show hTASK3 current density in tsA-201 cells treated with either SP600125 (a), SB203580 (b), or Bay11-7082 alone (c) and in the presence of TNFα (d) (one-way ANOVA; *, p ≤ 0.05, NS, p > 0.5).