ORAI1 and breast cancer: Given the established promigratory role of ORAI1 in MDA‐MB‐231 breast cancer cells (Yang et al., 2009), and our identified potential link between ORAI1‐mediated unstimulated Ca2+ influx and NCS‐1, the role of ORAI1 on the effects of NCS‐1 silencing on MDA‐MB‐231 breast cancer cell migration should be assessed in future studies.