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Interleukin 10 Polymorphisms as Risk Factors for Progression to Chagas Disease Cardiomyopathy: A Case-Control Study and Meta-Analysis. | LitMetric

Interleukin 10 Polymorphisms as Risk Factors for Progression to Chagas Disease Cardiomyopathy: A Case-Control Study and Meta-Analysis.

Front Immunol

Instituto de investigaciones en Microbiología y Parasitología Médica (IMPAM). Universidad de Buenos Aires- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina.

Published: July 2022

AI Article Synopsis

  • Chagas disease, a lifelong infection caused by protozoa, leads to chronic Chagas cardiomyopathy (CCC) in 20-30% of infected individuals, with links to pro-inflammatory responses and IL-10 levels.
  • A case control study in Buenos Aires involved 122 individuals, analyzing genetic variants of IL-10 (specifically three polymorphisms) to determine their relationship with CCC.
  • The results showed a significant association between specific IL-10 genotypes (-819 TT and -592 AA) and an increased likelihood of developing CCC, indicating a potential genetic risk factor.

Article Abstract

Background: Chagas disease is a lifelong infection caused by the protozoa endemic in Latin-America and emergent worldwide. Decades after primary infection, 20-30% of infected people develop chronic Chagas cardiomyopathy (CCC) while the others remain asymptomatic. CCC pathogenesis is complex but associated with sustained pro-inflammatory response leading to tissue damage. Hence, levels of IL-10 could have a determinant role in CCC etiology. Studies with Latin-American populations have addressed the association of genetic variants of IL-10 and the risk of developing CCC with inconsistent results. We carried out a case control study to explore the association between IL-10-1082G>A (rs18008969), -819C>T (rs1800871), -592A>C (rs1800872) polymorphisms and CCC in a population attending a hospital in Buenos Aires Argentina. Next, a systematic review of the literature and a meta-analysis were conducted combining present and previous studies to further study this association.

Methods: Our case control study included 122 individuals with chronic infection including 64 patients with any degree of CCC and 58 asymptomatic individuals. Genotyping of IL-10 -1082G>A, -819C>T, -592A>C polymorphisms was performed by capillary sequencing of the region spanning the three polymorphic sites and univariate and multivariate statistical analysis was undertaken. Databases in English, Spanish and Portuguese language were searched for papers related to these polymorphisms and Chagas disease up to December 2021. A metanalysis of the selected literature and our study was performed based on the random effect model.

Results: In our cohort, we found a significant association between TT genotype of -819 rs1800871 and AA genotype of -592 rs1800872 with CCC under the codominant (OR=5.00; 95%CI=1.12-23.87 P=0,04) and the recessive models (OR=5.37; 95%CI=1.12-25.68; P=0,03). Of the genotypes conformed by the three polymorphic positions, the homozygous genotype ATA was significantly associated with increased risk of CCC. The results of the meta-analysis of 754 cases and 385 controls showed that the TT genotype of -819C>T was associated with increased CCC risk according to the dominant model (OR=1.13; 95% CI=1.02-1.25; P=0,03).

Conclusion: The genotype TT at -819 rs1800871 contributes to the genetic susceptibility to CCC making this polymorphism a suitable candidate to be included in a panel of predictive biomarkers of disease progression.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9289619PMC
http://dx.doi.org/10.3389/fimmu.2022.946350DOI Listing

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