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Published on: October 5, 2015
Association between RANTES functional polymorphisms and tuberculosis in Hong Kong Chinese
1Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong Special Administrative Region, China.
Genes and Immunity
|July 13, 2007
Summary
Genetic variations in RANTES, a key chemokine, are linked to tuberculosis (TB) susceptibility. Specific RANTES haplotypes and diplotypes show a significant association with TB in the Hong Kong Chinese population.
Area of Science:
- Immunology
- Genetics
- Infectious Diseases
Background:
- Chemokines are crucial for immune cell movement in tuberculous granulomas.
- Understanding genetic factors influencing tuberculosis (TB) is vital for public health.
Purpose of the Study:
- To investigate the association between genetic polymorphisms in MCP-1, RANTES, and MIP-1alpha and TB.
- To identify specific genetic variants, haplotypes, or diplotypes linked to TB susceptibility.
Main Methods:
- Studied five single-nucleotide polymorphisms (SNPs) in MCP-1, RANTES, and MIP-1alpha.
- Analyzed linkage disequilibrium (LD) and haplotype distribution in Hong Kong Chinese TB patients and healthy controls.
- Examined RANTES genotypes and diplotypes for association with TB.
Main Results:
- No significant differences in individual SNP distribution for MCP-1, RANTES, or MIP-1alpha between TB patients and controls.
- Significant differences in RANTES SNP linkage disequilibrium and haplotype distribution were observed (P<0.0001).
- Two RANTES risk haplotypes (A-C-T and G-C-C) and two associated diplotypes (GA/TT and GG/TC) were identified, strongly linked to TB (P<0.001).
Conclusions:
- Individual chemokine gene polymorphisms are not strongly associated with TB in this population.
- Functional polymorphisms and specific haplotypes/diplotypes of RANTES are significantly associated with TB susceptibility.
- RANTES genetic variations represent potential biomarkers for TB risk.
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