Journal: British Journal of Pharmacology
Article Title: Modulation of K v 11.1 (hERG) channels by 5‐(((1H–indazol‐5‐yl)oxy)methyl)‐N‐(4‐(trifluoromethoxy)phenyl)pyrimidin‐2‐amine (ITP‐2), a novel small molecule activator
doi: 10.1111/bph.13859
Figure Lengend Snippet: hERG1a/1b channels are less sensitive to ITP‐2. (A) Family of current traces showing reduced sensitivity of hERG1a/1b channels to ITP‐2. Currents were elicited as in Figure 1A. (B, C) Corresponding current–voltage relationships for hERG1a/1b steady‐state currents and tail currents before and after 3 μM ITP‐2. ITP‐2 selectively increases test pulse currents, similar to hERG1a channels. Data shown are means±SEM; n = 5. *P < 0.05; significantly different from control; two‐way ANOVA. (D, E) Bar graphs showing reduced sensitivity of hERG1a/1b channels to ITP‐2 (nearly sixfold); n = 13 for hERG1a; n = 8 for hERG1a/1b channels and ICA‐105574 at +20 mV (nearly threefold); n = 5 for hERG1a; n = 8 for hERG1a/1b channels. *P < 0.05, significantly different from hERG1a channels.
Article Snippet: ICA‐105574 was purchased from Sigma (Bangalore, India).
Techniques: