Association analysis of genetic variants in the ghrelin and tumor necrosis factor α genes and the risk for non-Hodgkin’s lymphoma in Kuwaitis

Author:

Alrashid Maryam H.1,Al-Serri Ahmad2,Alshemmari Salem H.34,Geo Jeethu Anu1,Al-Bustan Suzanne A.1

Affiliation:

1. Department of Biological Sciences, Faculty of Science, Kuwait University, Safat, Kuwait

2. Department of Pathology, Unit of Human Genetics, Faculty of Medicine, Kuwait University, Safat, Kuwait

3. Department of Medicine, Faculty of Medicine, Kuwait University, Safat, Kuwait

4. Kuwait Cancer Control Center, Kuwait City, Kuwait

Abstract

BACKGROUND: Non-Hodgkin’s lymphoma (NHL) is the most common hematological malignancy in the world. Many etiologic factors have been implicated in the risk of developing NHL, including genetic susceptibility and obesity. Single-nucleotide polymorphisms (SNPs) in Ghrelin (GHRL), an anti-inflammatory hormone, and tumor necrosis factor α (TNF-α), an inflammatory cytokine, have been independently associated with the risk for obesity and NHL. OBJECTIVE: To investigate the association between SNPs in GHRL and TNF-α and the risk for NHL and obesity in Kuwaitis. METHODS: We recruited 154 Kuwaiti NHL patients and 217 controls. Genotyping was performed for rs1629816 (GHRL promoter region), rs35684 (GHRL 3’ untranslated region), and rs1800629 (TNF-α promoter region). Logistic regression analysis was performed to assess the association of the investigated SNPs with NHL and the relationship between the selected SNPs with BMI in each group separately. RESULTS: We show that rs1629816 GG was associated with an increased risk for NHL in our sample (p= 0.0003, OR 1.82; CI: 1.31–2.54). None of the investigated SNPs were associated with obesity, nor was obesity found to be associated with the risk for NHL. CONCLUSIONS: Our study demonstrates an association between rs1629816, a SNP in the GHRL regulatory region, and NHL in Kuwaitis.

Publisher

IOS Press

Subject

Cancer Research,Genetics,Oncology,General Medicine

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