ISSN 1308-8734 | E-ISSN 1308-8742
Original Article
Distribution of HLA Tissue Groups in Patients with Gastric Cancer
1 Department of Internal Medicine, Faculty of Medicine, Ataturk University, Erzurum, Turkey  
2 Department of, Medical Biology, Faculty of Medicine, Atatürk University, Erzurum, Turkey  
3 Atatürk Üniversitesi Tıp Fakültesi İç Hastalıkları Anabilim Dalı, Erzurum  
4 Department of Pathology, Faculty of Medicine, Ataturk University, Erzurum, Turkey  
Eurasian J Med 2010; 42: 9-11

Key Words: Gastric cancer, HLA antigens, HLA-Cw5, HLA-DRB1*15
Abstract

 

Objective: Gastric cancer is an important disease that is seen all over the world and that threats public health. At the same time, gastric cancer is a heterogeneous disorder with multifactorial etiologies. Recent studies have shown a significant association between HLA antigens and gastric adenocarcinoma. The aim of the present study was to determine the distribution of HLA class I (HLA-A, B and C) and class II (HLA-DR, DQ and DP) antigens in Turkish patients with gastric adenocarcinoma.

 

Materials and Methods: HLA alleles or HLA haplotypes associated with gastric cancer were established in the Turkish population using PSR-SSP analysis in 71 unrelated patients with gastric cancer and in 82 unrelated healthy controls. The statistical significance of diff erences in allele frequencies between patients and controls was measured by the Chi-square test with Yates's correction.

Results: The study revealed that the HLA-Cw5 antigen is more prevalent in patients with gastric cancer (p=0.042) and that the HLA-DRB1*15 antigen is more prevelent in the control group (p=0.021).

Conclusion: It is probable that HLA-Cw5 is a risk factor for gastric cancer whereas HLA-DRB1*15 plays a protective role for this disease. The results show that diff erent loci on HLA may control resistance to or tendency for any disease in diff erent societies; each society should determine its own tissue group.

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