This study reveals that FOXO3 mutation, leading to autophagic imbalance, plays important role in gefitinib-induced hepatotoxicity, especially for patients with high concentration of gefitinib. In conclusion, FOXO3 mutation is an effective predictor and erlotinib might be an appropriately and well-tolerated treatment option for patients carrying rs4946935 AA.
FOXO3 rs4946935 and FOXO3 rs75544369 are predictive biomarkers for gefitinib-induced hepatotoxicity in NSCLC patients. The mechanism underlying the association between FOXO3 polymorphisms and gefitinib-induced hepatotoxicity are worth investigating in further studies. Research Funding: National Natural Science Foundation of China