CD14 C-159T polymorphism and its association with chronic lung diseases: A pilot study on isocyanate exposed population of Central India.
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Date
2013-04
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Abstract
CONTEXT:
CD14 functions as a multifunctional receptor for bacterial cell wall components including endotoxin and lipopolysaccharide and is likely to influence the cytokine profile and subsequent immunoglobulin E production in response to antigen/allergen contact in allergic phenotypes.
AIMS:
The present study was to investigate genetic polymorphism in CD14 gene - 159C/T, which may be one of the risk factor for increased prevalence of Chronic Lung Diseases in the Central India.
SETTINGS AND DESIGN:
Survivors of Methyl isocyanates toxicity in Bhopal still suffering from various respiratory ailments were examined.
MATERIALS AND METHODS:
Polymerase chain reaction-restriction fragment length polymorphism was performed to determine the polymorphism of C-159T.
RESULTS:
The genotype and allelic frequencies were in Hardy-Weinberg’s equilibrium. Prevalence of CC, CT, and TT were 5.5%, 22.2% and 9.25% respectively in asthmatics; 16.6%, 20.3% and 5.5% respectively in chronic obstructive pulmonary disease (COPD) patients and 5.5%, 14.8% and 1.85 respectively among interstitial lung disorder (ILD) patients; whereas the control cohort with no methyl isocyanate exposure displayed (CC, CT, and TT) cytosine, thymine as 2%, 1.6% and 2% respectively. Increased risk of Asthma among those carrying TT genotype and T allele (odds ratio [OR] =2.61 and 2.02 respectively).
CONCLUSION:
COPD risk significantly found among those with CC genotype and C allele (OR = 2.81 and 1.50 respectively), whereas ILD risk found significantly among CT genotype and C allele (OR = 1.75 and 1.40 respectively). Therefore, single nucleotide polymorphism (SNP) C-159T polymorphism in CD14 gene might be a risk factor for development of CLD in this population.
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Keywords
Asthma, Bhopal, CD14, chronic obstructive methyl isocyanate, pulmonary disease
Citation
Bose Protiti, Bathri Rashmi, De Sajal, Maudar K K. CD14 C-159T polymorphism and its association with chronic lung diseases: A pilot study on isocyanate exposed population of Central India. Indian Journal of Human Genetics. 2013 Apr; 19(2): 188-195.