Figure 2

Concentration-response curves of different fatty acids in inducing [Ca2+]i increase in HCT116 cells (A, B) and HT-29 cells (C, D). Long-chain fatty acids with 18 or more carbons were used in (A, C), whereas fatty acids with less than 18 carbons were used in (B, D). Ca2+ responses are shown versus the digitonin-induced maximum response.