The prognostic value of differentially expressed CYP3A subfamily members for hepatocellular carcinoma.

OBJECTIVE

The activities of four cytochrome P3A (CYP3A) subfamily members (CYP3A4, CYP3A5, CYP3A7, and CYP3A43) are well documented in drug metabolism. However, the association between CYP3A subfamily members and hepatocellular carcinoma (HCC) remains unclear. This study investigated the prognostic value of CYP3A subfamily mRNA expression levels with HCC prognosis.

MATERIALS AND METHODS

Data from a total of 360 HCC patients were retrieved from The Cancer Genome Atlas database, and data from 231 HCC patients were retrieved from the Gene Expression Omnibus database. Kaplan-Meier analysis and Cox regression models were utilized to determine median survival, overall survival, and recurrence-free survival. Hazard ratios and 95% CI were calculated.

RESULTS

Low expression of , , and in the tumor tissue was associated with short median survival (crude =0.004, 0.001, and 0.001; adjusted =0.022, 0.005, and 0.013, respectively). Joint-effects combination analysis of /, /, and revealed that high expression groups of two genes (group C, group c, group 3) were associated with a reduced risk of death, as compared to low expression of two genes (group A, group a, group 1), and the adjusted values were 0.001, 0.004, and 0.001, respectively. Joint-effects analysis of , , and showed that groups III and IV had a reduced risk of death, as compared to group I (adjusted =0.024 and 0.002, respectively).

CONCLUSION

, , and mRNA expression levels are potential prognostic markers of HCC.