Figure 6 Whole cell electrophysiological recording of electrical currents in HLMC at rest and following the addition of CXCL10 and then 1‐ethyl‐2‐benzimidazolinone (1‐EBIO). (A) Continuous recording of current at +40 mV in an HLMC showing a stable baseline with minimal basal current. No response was seen to the addition of CXCL10 where indicated, but a rapid increase in outward current occurred within 90 seconds of adding 1‐EBIO to the recording chamber. (B) Current‐voltage curves from another cell at rest 3 minutes after the addition of CXCL10 and then 3 minutes after the addition of 1‐EBIO showing development of a typical KCa3.1 whole cell current following the latter.