HLA typing in Taiwanese patients with oral submucous fibrosis
Journal
Journal of Oral Pathology and Medicine
Journal Volume
33
Journal Issue
4
Pages
191-199
Date Issued
2004
Author(s)
Abstract
BACKGROUND: A significant association of certain human leukocyte antigens (HLA) and haplotypic pairs with oral submucous fibrosis (OSF) has been reported. However, controversial result of no HLA association with OSF has also been reported. In this study, the phenotype and haplotype frequencies of HLA-A, -B, -C, -DRB1, and -DQB1 in 135 Taiwanese OSF patients were calculated and compared with those in 540 healthy control Taiwanese. METHODS: The analysis of HLA-A, -B, and -C antigens, and of HLA-DRB1 and -DQB1 alleles in OSF patients and healthy control subjects, was performed by serologic typing and DNA typing using polymerase chain reaction with sequence-specific primers (PCR-SSP), respectively. RESULTS: We found that the phenotype frequency of HLA-B76 (3.0%) in OSF patients was significantly greater than that (0%) in healthy control subjects (corrected P (Pc)= 0.000). In addition, the haplotype frequencies of HLA-B48/Cw7 (3.0%), -B51/Cw7 (6.7%), and -B621/w7 (8.2%) in OSF patients were significantly greater than the corresponding haplotype frequencies (0, 0.7, and 1.9%, respectively) in healthy control subjects (Pc= 0.000). The relative risk (RR) values of haplotypes B51/Cw7 (9.57) and B62/Cw7 (4.7) were greater than the RR values of phenotypes B51 (1.81), B62 (2.31), and Cw7 (1.91) in OSF patients. In addition, the etiologic fraction (EF) value of haplotype BS1/Cw7 (0.63) was higher than the EF values of phenotypes B51 (0.2) and Cw7 (0.59). CONCLUSIONS: We conclude that some Taiwanese areca quid (AQ) chewers with particular HLA phenotypes and haplotypes are prone to have OSF. In addition, some particular HLA haplotypes may play more important roles than the individual HLA phenotypes for the genetic susceptibility to OSF. However, the significantly increased HLA phenotype B76 and three of the common HLA haplotypes detected are present in only about 20% of incident cases of OSF.
SDGs
Other Subjects
HLA antigen; HLA B antigen; HLA C antigen; HLA DQB1 antigen; HLA DR antigen; adolescent; adult; allele; article; calculation; controlled study; DNA fingerprinting; female; genetic susceptibility; haplotype; HLA typing; human; major clinical study; male; mouth disease; polymerase chain reaction; priority journal; serology; Taiwan; Adolescent; Adult; Case-Control Studies; Female; Gene Frequency; Genetic Predisposition to Disease; Haplotypes; HLA Antigens; HLA-A Antigens; HLA-B Antigens; HLA-C Antigens; HLA-DQ Antigens; HLA-DR Antigens; Humans; Male; Middle Aged; Oral Submucous Fibrosis; Phenotype; Serotyping; Taiwan
Type
journal article