TRPV6 and cancer: Knockdown or overexpression of TRPV6 in cultured cancer cells showed mixed effects in increasing/decreasing proliferation and/or apoptosis (Chow et al., 2007; Lehen'kyi et al., 2007; Lehen'kyi et al., 2012; Raphaël et al., 2014; Skrzypski et al., 2016).