PMID- 16970270 OWN - NLM STAT- MEDLINE DCOM- 20061026 LR - 20190117 IS - 1726-4901 (Print) IS - 1726-4901 (Linking) VI - 69 IP - 8 DP - 2006 Aug TI - Evaluation of the associations between the single nucleotide polymorphisms of the promoter region of the tumor necrosis factor-alpha gene and nasopharyngeal carcinoma. PG - 351-7 AB - BACKGROUND: Tumor necrosis factor-alpha (TNF-alpha) is a pro-inflammatory cytokine and may act as an endogenous tumor promoter. Single nucleotide polymorphisms (SNPs) of the TNF-alpha gene promoter region have been found to be associated with certain cancers. We conducted a case-control study to evaluate the association between these SNPs and nasopharyngeal carcinoma (NPC). METHODS: We used polymerase chain reaction followed by restriction fragment length polymorphism analysis to determine the -308 TNF-alpha promoter genotypes of 89 NPC patients and 360 healthy controls. In 23 NPC patients and 50 controls, we determined the sequence from -1065 to -101 nucleotides of the TNF-alpha gene promoter region to detect SNPs. RESULTS: In comparison with the controls, the NPC patients had higher proportions of men and carriage of IgA antibodies against the capsid antigen of Epstein-Barr virus, but had a similar carrier rate of the -308A allele (odds ratio [OR], 1.2; 95% confidence interval [CI], 0.7-2.0). The carriage of the -308A allele was not associated with the occurrence of NPC in comparison with -308G homozygosity. We also found no significant differences in the distributions of allelic variants of the -1031, -863, -857, and -806 loci of the TNF-alpha promoter region, but observed a lower carrier rate of the novel -806T allele in the NPC patients (OR, 0.3; 95% Cl, 0.0-2.9). CONCLUSION: Allelic variants of the TNF-alpha promoter gene may not be used as biomarkers of susceptibility to NPC. The role of the -806T allele needs to be studied further. FAU - Ho, Sheng-Yow AU - Ho SY AD - Department of Radiation Oncology, Sin-Lau Christian Hospital, Taiwan, ROC. FAU - Wang, Ying-Jan AU - Wang YJ FAU - Huang, Po-Chang AU - Huang PC FAU - Tsai, Sen-Tien AU - Tsai ST FAU - Chen, Chih-Hung AU - Chen CH FAU - Chen, Helen H W AU - Chen HH FAU - Chang, Chih-Jen AU - Chang CJ FAU - Guo, How-Ran AU - Guo HR LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Chin Med Assoc JT - Journal of the Chinese Medical Association : JCMA JID - 101174817 RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Adult MH - Aged MH - Female MH - Humans MH - Male MH - Middle Aged MH - Nasopharyngeal Neoplasms/*genetics MH - *Polymorphism, Single Nucleotide MH - *Promoter Regions, Genetic MH - Tumor Necrosis Factor-alpha/*genetics EDAT- 2006/09/15 09:00 MHDA- 2006/10/27 09:00 CRDT- 2006/09/15 09:00 PHST- 2006/09/15 09:00 [pubmed] PHST- 2006/10/27 09:00 [medline] PHST- 2006/09/15 09:00 [entrez] AID - S1726-4901(09)70272-2 [pii] AID - 10.1016/S1726-4901(09)70272-2 [doi] PST - ppublish SO - J Chin Med Assoc. 2006 Aug;69(8):351-7. doi: 10.1016/S1726-4901(09)70272-2.