TABLE 1

Antagonist effects of SB-705498 versus the capsaicin-mediated activation of human, rat, and guinea pig TRPV1 receptors Data are from experiments similar to those defined in the legend to Fig. 1, using a FLIPR Ca2+ plate-based assay (see Materials and Methods) and define the inhibition of (100 nM) capsaicin-mediated responses of TRPV1 receptors expressed in the cell lines or neurons indicated.


Cell Type

pKi

S.D.

n
1321N1-hTRPV1 7.5 0.2 178
HEK293-hTRPV1 7.6 0.2 38
HEK293-rTRPV1 7.5 0.3 46
HEK293-gpTRPV1 7.3 0.1 18
Rat DRG neurons
7.1
0.2
9
  • h, human; r, rat; gp, guinea pig