Xeroderma pigmentosum complementation group D polymorphism toward lung cancer susceptibility survival and response in patients treated with platinum chemotherapy.

AIM: The study investigated role of xeroderma pigmentosum complementation group D (XPD) single nucleotide polymorphisms in modulating lung cancer risk and its association with overall survival and clinical outcomes.

METHODS

XPD polymorphisms were detected using polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP).

RESULTS

CC genotype of A751C polymorphism was associated with an increased lung cancer risk (p = 0.01). Classification and Regression Tree (CART) analysis depicted C156A as the major contributing factor. Patients having CC, treated with irinotecan-cisplatin/carboplatin regimen showed a better survival (median survival time = 25.2) whereas a poor survival was for XPD G312A. Similarly, patients treated with pemetrexed and carrying heterozygous genotype of G312A polymorphism had a poor survival (p = 0.01).

CONCLUSION

A751C and G312A act as a predictive marker in lung cancer patients treated with platinum chemotherapy. These findings might facilitate therapeutic decisions for individualized therapy in lung cancer patient. [Formula: see text].