Interestingly, we observed that the miR‐205/ERRFI1/EGFR regulatory axis can operate also in not‐addicted cells, as ectopic miR‐205 expression in A549 lung cancer cells resulted in ERRFI1 downregulation and increased EGFR expression/activation (Appendix Fig S8A and B). Here, ERRFI1 is linked to lung carcinoma.