In tyrosine kinase inhibitor gefitinib-resistant NSCLC PC-9GR cells that possesses EGFR delE746-A750 mutation, mRNA levels and protein expressions of both FAS and its regulator sterol regulatory element-binding transcription factor 1 (SREBF1) were found to be significantly elevated (Ali et al., 2018). This evidence concerns the gene FAS and non-small cell lung carcinoma.