Most studies concerning the expression and functional role of Orai3 in lung cancer have been performed by the Ouadid-Ahidouch group, who initially analyzed Orai3 expression by immunohistochemistry in samples of lung tumors and adjacent tissue from the same patients reporting that ~66% of the tumoral tissue exhibited a strong Orai3 expression as compared to non-tumoral tissue samples [49]. This evidence concerns the gene ORAI3 and lung carcinoma.