The Association of Flap Endonuclease 1 Genotypes with the Risk of Childhood Leukemia

Cancer Genomics - Proteomics

CHIEH-LUN HSIAO⁴  DA-TIAN BAU⁵  WEN-SHIN CHANG⁴  PEI-CHEN HSU¹  CHIA-WEN TSAI²  CHIN-MU HSU²  YUAN-NIAN HSU³  HONG-XUE JI⁴  JEN-SHENG PEI¹ 

[1] epartments of Pediatrics, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, R.O.C.epartments of Pediatrics, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, R.O.C.epartments of Pediatrics, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, R.O.C.;erry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan, R.O.C.erry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan, R.O.C.erry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan, R.O.C.;amily Medicine, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, R.O.C.amily Medicine, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, R.O.C.amily Medicine, Taoyuan General Hospital, Ministry of Health and Welfare, Taoyuan, Taiwan, R.O.C.;erry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan, R.O.C.raduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan, R.O.C.erry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan, R.O.C.erry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan, R.O.C.raduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan, R.O.C.raduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan, R.O.C.erry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan, R.O.C.raduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan, R.O.C.;erry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan, R.O.C.raduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan, R.O.C.epartment of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan, R.O.C.erry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan, R.O.C.erry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan, R.O.C.raduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan, R.O.C.epartment of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan, R.O.C.raduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan, R.O.C.erry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan, R.O.C.raduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan, R.O.C.epartment of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan, R.O.C.epartment of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan, R.O.C.erry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan, R.O.C.raduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan, R.O.C.epartment of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan, R.O.C.

关键词: Childhood leukemia;    FEN1;    genotype;    polymorphism;    Taiwan;   

DOI  :  

来源: Delinasios GJ CO

【 摘 要 】

Aim: Flap endonuclease 1 (FEN1) is one of the most important proteins in maintaining genome stability and preventing carcinogenesis. In recent years, the contribution of two variants of FEN1, rs174538 and rs4246215, regarding cancer risk have been investigated in lung, breast, liver, esophageal, gastric, colorectal cancer and glioma. However, it has not been revealed whether rs174538 and rs4246215 are associated with leukemia. Therefore, in the present study we aimed to evaluate the contribution of these genotypic polymorphisms in FEN1 to childhood acute lymphoblastic leukemia (ALL) risk in Taiwan. Materials and Methods: In total, 266 patients with childhood ALL and an equal number of recruited non-cancer controls were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Results: The FEN1 rs174538 genotype, but not rs4246215, was differently distributed between childhood ALL and control groups. The AG and AA of FEN1 rs174538 genotypes were significantly less frequently found in childhood ALL patients than in controls (odds ratio [OR]=0.68 and 0.48, 95%confidence intervals [CI]=0.47-0.98 and 0.24-0.82, respectively). As for gender, boys carrying the FEN1 rs174538 AG or AA genotype conferred lower ORs of 0.55 and 0.36 (95%CI=0.33-0.91 and 0.18-0.73, p=0.0053) for childhood ALL. Regarding age, those equal to or greater than 3.5 years of age at onset carrying the FEN1 rs174538 AG or AA genotype were of lower risk (ORs=0.53 and 0.32, 95%CI=0.31-0.90 and 0.15-0.70, p=0.0042). Conclusion: The FEN1 rs174538 A allele is a protective biomarker for childhood ALL and this association is more significant in males and in patients at onset age of 3.5 years or older.

【 授权许可】

Unknown