EGFR and lung cancer: In lung cancer, miR-7 was upregulated in 60% of NSCLC fine-needle aspirates, which could be induced by both wild type and mutant EGFR L858R, and plays an oncogenic role by activating the rat sarcoma viral oncogene homolog (RAS)/ERK/c-Myc signaling axis to promote lung carcinogenesis by repressing the transcriptional regulator Ets2 transcriptional repression factor (ERF) [16, 21].