[ English | Bahasa Malaysia ] Today is 8th Dec 2024, 08:51 PM (Last updated: 7th Dec 2024)

Text Red Text Black Text Blue Text Green Text Smaller Text Reset Text Larger

Publication Details
Year :

2015

Journal :

Yoon-Ming Chin, Taisei Mushiroda, Atsushi Takahashi, Michiaki Kubo, Gopala Krishnan, Lee-Fah Yap, Soo-Hwang Teo, Paul Vey-Hong Lim, Yoke-Yeow Yap, Kin-Choo Pua, Naoyuki Kamatani, Yusuke Nakamura, Choon-Kook Sam, Alan Soo-Beng Khoo, The Malaysian NPC Study Group and Ching-Ching Ng (2015). HLA-A SNPs and amino acid variants are associated with nasopharyngeal carcinoma in Malaysian Chinese. International Journal of Cancer 136(3): 678-687

Abstract :

Nasopharyngeal carcinoma (NPC) arises from the mucosal epithelium of the nasopharynx and is constantly associated with Epstein–Barr virus type 1 (EBV-1) infection. We carried out a genome-wide association study (GWAS) of 575,247 autosomal SNPs in 184 NPC patients and 236 healthy controls of Malaysian Chinese ethnicity. Potential association signals were replicated in a separate cohort of 260 NPC patients and 245 healthy controls. We confirmed the association of HLA-A to NPC with the strongest signal detected in rs3869062 (p = 1.73 × 10−9). HLA-A fine mapping revealed associations in the amino acid variants as well as its corresponding SNPs in the antigen peptide binding groove (pHLA-A-aa-site-99 = 3.79 × 10−8prs1136697 = 3.79 × 10−8) and T-cell receptor binding site (pHLA-A-aa-site-145 = 1.41 × 10−4,prs1059520 = 1.41 × 10−4) of the HLA-A. We also detected strong association signals in the 5′-UTR region with predicted active promoter states (prs41545520 = 7.91 × 10−8). SNP rs41545520 is a potential binding site for repressor ATF3, with increased binding affinity for rs41545520-G correlated with reduced HLA-A expression. Multivariate logistic regression diminished the effects of HLA-A amino acid variants and SNPs, indicating a correlation with the effects of HLA-A*11:01, and to a lesser extent HLA-A*02:07. We report the strong genetic influence of HLA-A on NPC susceptibility in the Malaysian Chinese.

myGOV MAMPU JPA IKU MSC NMMR CRC MyHEALTH MOH Globinmed SPA krste.my

Notice

 

This site is best viewed on Firefox (24.0) with resolution higher than 1280 x 768 pixels.

Our Location

world

Located at Setia Alam, Selangor, Malaysia. Click on the map image to launch Google Maps service.

Get in touch with us