Also, increased expression of miR‐641 was identified in gefitinib resistance NSCLC cell line HCC827/GR compared to their parental ell HCC827 (Fig. S1B and D), suggesting that increased expression of miR‐641 may be involved in EGFR‐TKIs resistance development of NSCLC cells. This evidence concerns the gene EGFR and non-small cell lung carcinoma.