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Interleukin-10 (IL-10) gene polymorphism as a potential host susceptibility factor in tuberculosis
Haluk B Oral1, Ferah Budak, Esra Kunt Uzaslan
1Microbiology and Infectious Diseases Department, Faculty of Medicine, Uludağ University, 16059 Bursa, Turkey. oralb@uludag.edu.tr
Interleukin-10 (IL-10) gene polymorphisms may increase tuberculosis (TB) susceptibility. The IL-10 -1082 G allele was more frequent in Turkish TB patients, suggesting a potential genetic risk factor for developing TB.
Area of Science:
- Immunogenetics
- Infectious Diseases
- Molecular Biology
Background:
- Cytokine gene polymorphisms influence individual susceptibility to infectious diseases like tuberculosis (TB).
- Variations in cytokine production capacity, linked to genetic factors, may impact TB development.
- Understanding these genetic associations is crucial for identifying host risk factors for TB.
Purpose of the Study:
- To investigate the association between specific cytokine gene polymorphisms and susceptibility to tuberculosis (TB).
- To determine if variations in IL-6, IL-10, IFN-gamma, TGF-beta, and TNF-alpha genes correlate with TB development in a Turkish population.
Main Methods:
- Genotyping of cytokine genes (IL-6, IL-10, IFN-gamma, TGF-beta, TNF-alpha) using sequence-specific primers PCR (PCR-SSP).
- Analysis of DNA samples from 81 Turkish TB patients with diverse clinical forms and 50 healthy controls.
- Comparison of allele frequencies between TB patients and the healthy control group.
Main Results:
- A significantly higher frequency of the Interleukin-10 (IL-10) -1082 G allele was observed in TB patients (37.7%) compared to healthy controls (23.0%) (p=0.014).
- No statistically significant differences in allele frequencies were found between different clinical forms of TB.
- The findings suggest a potential link between IL-10 gene polymorphisms and increased TB susceptibility.
Conclusions:
- Polymorphisms in the IL-10 gene may influence an individual's susceptibility to tuberculosis (TB).
- The IL-10 -1082 G allele could be a genetic marker associated with an increased risk of developing TB.
- Further research involving diverse population groups is recommended to confirm the biological significance and generalizability of these findings.
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