Transient receptor potential channels (TRP) channels are non-selective calcium permeant cation channel located mostly on the plasma membrane of numerous animal cell types. They are involved in osmotic sensitivity and mechano-sensitivity. The exposure to hypotonicity within the physiological range induces some TRP channels activation exhibiting an outward rectification. TRP channels can also be activated by heat, low pH, citrate and phorbol esters. The increase of intracellular Ca2+ potentiates