ArticleEuropean journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology2021
Differential genotypic signatures of Toll-like receptor polymorphisms among dengue-chikungunya mono- and co-infected Eastern Indian patients.
Article in European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
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13 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.
- Toll-like receptors polymorphisms and COVID-19: a systematic review.Molecular and cellular biochemistry · 2025Pooled it
- Characterization of an immunocompetent, young adult mouse model for studying chikungunya virus neuroinvasion and central nervous system infection.PLoS pathogens · 2026Article
- The contributions of TLR2, TLR8 and TLR3 to direct and antibody-dependent enhancement of dengue virus serotype 2 infection.Npj viruses · 2026Article
- Rewiring of host cell signaling in chikungunya virus infection: a mechanism for pathogenesis and therapeutic approaches.Archives of microbiology · 2026Review
- Innate immune sensing of alphavirus chikungunya: balancing antiviral defense and pathogenesis.Frontiers in immunology · 2026Review
- From Rare to Common: Genetic Insights into TLR7 Variants in a Multicentric Spanish Study on COVID-19 Severity.Journal of clinical immunology · 2025Article
- X-linked polymorphisms in TLR7 and TLR8 genes are associated with protection against Chikungunya fever.Memorias do Instituto Oswaldo Cruz · 2025Article
- From defense to offense: Modulating toll-like receptors to combat arbovirus infections.Human vaccines & immunotherapeutics · 2024Review
- Pathogenicity and virulence of chikungunya virus.Virulence · 2024Review
- Meta-analysis of the association between toll-like receptor gene polymorphisms and hepatitis C virus infection.Frontiers in microbiology · 2023Review
- Influence of host genetic polymorphisms involved in immune response and their role in the development of Chikungunya disease: a review.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2023Review
- Understanding the Biology and Immune Pathogenesis of Chikungunya Virus Infection for Diagnostic and Vaccine Development.Viruses · 2022Review
- Recent Insights Into the Molecular Mechanism of Toll-Like Receptor Response to Dengue Virus Infection.Frontiers in microbiology · 2021Review
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4 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Dengue (DENV) and chikungunya (CHIKV) viral infections trigger high patient morbidity and mortality. Mono-/co-infection of these viruses activates innate immune response, triggering Toll-like receptor (TLR) pathways. The present study investigated the differential role of TLR3, 7 and 8 single-nucleotide polymorphisms (SNPs) between mono- and co-infected Eastern Indian patients. Interaction of TLR polymorphic variants with signal peptidase complex (SPC18) was explored which might affect immune signalling against DENV/CHIKV infections. Out of 550 febrile symptomatic patients, 128 DENV-CHIKV co-infected samples were genotyped for eight SNPs of TLR3 (rs3775290-chr4:186083063), TLR7 (rs179008-chrX:12885540, rs5741880-chrX:12869297, rs179010-chrX:12884766, rs3853839-chrX:12889539) and TLR8 (rs5744080-chrX:12919685, rs3764879-chrX:12906578, rs3764880-chrX:12906707) by PCR-RFLP along with 157 healthy individuals. Statistical analysis established genotypic association of TLR SNPs with DENV-CHIKV co-infection, and difference between mono- and co-infected patients and their role in determining high viral load (HVL) during competitive viral replication among co-infected patients. In silico protein-protein docking evaluated interactive effect of TLR variants with SPC18. The findings revealed patients with CC genotypes of TLR7 and 8 SNPs were significantly susceptible towards co-infection, whereas specific genotypes of TLR7 and 8 imparted protection against co-infection. Differential analysis between mono-/co-infected patients revealed distinct genotypic distribution of TLR3, 7 and 8 SNPs. Co-infected patients with TT-rs179010 exhibited DENV-HVL, whereas CHIKV-HVL was detected among patients with other genotypes. Molecular docking of TLR7-rs179008 Q variant and TLR8-rs3764880 V variant with SPC18 generated better free binding energy. This study underlined the importance of TLR7 and 8 SNPs towards mono-/co-infection of DENV/CHIKV, with certain genotypes associated with co-infection susceptibility. Moreover, it suggested a probable role of specific genotypes of TLR7 and 8 polymorphisms imparting high dengue/chikungunya viral load among co-infected patients.
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