CD44 gene polymorphisms and environmental factors on oral cancer susceptibility in Taiwan.

doi:10.1371/journal.pone.0093692

中山醫學大學機構典藏 CSMUIR > 口腔醫學院 > 牙醫學系暨碩士班 > 期刊論文 > Item 310902500/15750

Please use this identifier to cite or link to this item: https://ir.csmu.edu.tw:8080/ir/handle/310902500/15750

Title:	CD44 gene polymorphisms and environmental factors on oral cancer susceptibility in Taiwan.
Authors:	YE, Chou MJ, Hsieh CH, Hsin WL, Chiang YC, Lai YH, Lee SC, Huang SF, Yang CW, Lin
Contributors:	中山醫大口腔科學研究所
Date:	2014-04-03
Issue Date:	2016-08-11T06:17:56Z (UTC)
ISSN:	1932-6203
Abstract:	BACKGROUND: Oral squamous cell carcinoma (OSCC) is the fourth leading cause of male cancer death in Taiwan. Exposure to environmental carcinogens is the primary risk factor for developing OSCC. CD44, a well-known tumor marker, plays a crucial role in tumor cell differentiation, invasion, and metastasis. This study investigated CD44 single-nucleotide polymorphisms (SNPs) with environmental risk factors to determine OSCC susceptibility and clinicopathological characteristics. METHODOLOGY/PRINCIPAL FINDINGS: Real-time polymerase chain reaction (PCR) was used to analyze 6 SNPs of CD44 in 599 patients with oral cancer and 561 cancer-free controls. We determined that the CD44 rs187115 polymorphism carriers with the genotype AG, GG, or AG+GG were associated with oral cancer susceptibility. Among 731 smokers, CD44 polymorphisms carriers with the betel-nut chewing habit had a 10.30-37.63-fold greater risk of having oral cancer compared to CD44 wild-type (WT) carriers without the betel-nut chewing habit. Among 552 betel-nut chewers, CD44 polymorphisms carriers who smoked had a 4.23-16.11-fold greater risk of having oral cancer compared to those who carried the WT but did not smoke. Finally, we also observed that the stage III and IV oral cancer patients had higher frequencies of CD44 rs187115 polymorphisms with the variant genotype (AG+GG) compared with the wild-type (WT) carriers. CONCLUSION: Our results suggest that gene-environment interactions between the CD44 polymorphisms and betel quid chewing and tobacco smoking increase the susceptibility to oral cancer development. Patients with CD44 rs187115 variant genotypes (AG+GG) were correlated with a higher risk of oral cancer development, and these patients may possess greater chemoresistance to advanced- to late-stage oral cancer than WT carriers do. The CD44 rs187115 polymorphism has potential predictive significance in oral carcinogenesis and also may be applied as factors to predict the clinical stage in OSCC patients.
URI:	http://dx.doi.org/10.1371/journal.pone.0093692 https://ir.csmu.edu.tw:8080/ir/handle/310902500/15750
Appears in Collections:	[牙醫學系暨碩士班] 期刊論文

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