Abstract:
:Background: The Aldehyde dehydrogenase 2 (ALDH2) mutant genotypes contain an allele encoding defective ALDH2 with reduced efficacy of alcohol metabolism leading to accumulation of highly toxic and carcinogenic acetaldehyde. It can induce unpleasant "Asian flush syndrome" and associate with increased risk of cancers. However, to date, little is known about ALDH2 genotypes in relation to the postoperative prognosis of hepatocellular carcinoma (HCC). Methods: From 2002 to 2012, 419 HCC patients receiving surgical resection of HCC were enrolled for ALDH2-rs671 genotyping and outcome correlation. Results: Of the patients included, 202 were ALDH2-rs671 "GG" (wild type) and 217 were mutant (defective) "AA" + "GA" genotype. Kaplan-Meier analysis indicated that "GG" genotype significantly associated with shorter metastasis-free (P = 0.034) and overall (P = 0.005) survival, but not recurrence-free survival (P = 0.281). Univariate followed by multivariate Cox proportional hazard analysis showed that "GG" genotype was an independent clinical predictor for shorter time-to-distant metastasis (adjusted P = 0.019) and shorter overall survival (adjusted P = 0.001). Subgroup analysis showed that in patients with negative hepatitis B surface antigen, Edmonson's histology grade < 3, and aspartate transaminase > alanine transaminase, the ALDH2-rs671-GG genotype was associated with both shorter time-to-metastasis and shorter overall survival. Conclusions: HCC patients carrying a defective allele of ALDH2 had a favorable postoperative outcome.
journal_name
J Cancerjournal_title
Journal of Cancerauthors
Huang PH,Hu CC,Chien CH,Chen LW,Chien RN,Lin YS,Chao M,Lin CL,Yeh CTdoi
10.7150/jca.33221subject
Has Abstractpub_date
2019-10-03 00:00:00pages
5735-5743issue
23issn
1837-9664pii
jcav10p5735journal_volume
10pub_type
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journal_title:Journal of Cancer
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