2016
HLA‐DR polymorphisms influence in vivo responses to staphylococcal toxic shock syndrome toxin‐1 in a transgenic mouse model
Krogman A, Tilahun A, David CS, Chowdhary VR, Alexander MP, Rajagopalan G. HLA‐DR polymorphisms influence in vivo responses to staphylococcal toxic shock syndrome toxin‐1 in a transgenic mouse model. HLA 2016, 89: 20-28. PMID: 27863161, DOI: 10.1111/tan.12930.Peer-Reviewed Original ResearchToxic shock syndrome toxin-1Class II moleculesMHC class II moleculesHLA-DR allelesSyndrome toxin-1Transgenic miceImmune activationHuman leukocyte antigen (HLA) transgenic miceSpecific HLA class II allelesToxin 1Cytokine/chemokine responsesMajor histocompatibility complex (MHC) class II moleculesNonmenstrual toxic shock syndromeDifferent HLA-DR allelesHLA class II allelesStaphylococcal toxic shock syndrome toxin 1Severe organ pathologyDifferent HLA-DRB1 allelesMultiple immune parametersT cell expansionHLA-DRB1 allelesToxic shock syndromeTransgenic mouse modelOutcome of diseaseClass II alleles
2014
The Impact of Staphylococcus aureus‐Associated Molecular Patterns on Staphylococcal Superantigen‐Induced Toxic Shock Syndrome and Pneumonia
Tilahun A, Karau M, Ballard A, Gunaratna M, Thapa A, David C, Patel R, Rajagopalan G. The Impact of Staphylococcus aureus‐Associated Molecular Patterns on Staphylococcal Superantigen‐Induced Toxic Shock Syndrome and Pneumonia. Mediators Of Inflammation 2014, 2014: 468285. PMID: 25024509, PMCID: PMC4082930, DOI: 10.1155/2014/468285.Peer-Reviewed Original ResearchConceptsPathogen-associated molecular patternsHLA-DQ8 transgenic miceHeat-killed Staphylococcus aureusToxic shock syndromeStaphylococcal superantigensHLA-DR3Shock syndromeMolecular patternsTransgenic miceS. aureus-derived peptidoglycanSerious S. aureus infectionsCytokine/chemokine responsesLipoteichoic acidStaphylococcal toxic shock syndromeS. aureusLife-threatening systemic diseaseAnti-inflammatory roleT cell expansionS. aureus infectionT cell proliferationToxigenic S. aureusStaphylococcus aureusAdaptive immune systemChemokine responsesSystemic disease
2011
Interferon Gamma-Dependent Intestinal Pathology Contributes to the Lethality in Bacterial Superantigen-Induced Toxic Shock Syndrome
Tilahun A, Holz M, Wu T, David C, Rajagopalan G. Interferon Gamma-Dependent Intestinal Pathology Contributes to the Lethality in Bacterial Superantigen-Induced Toxic Shock Syndrome. PLOS ONE 2011, 6: e16764. PMID: 21304813, PMCID: PMC3033413, DOI: 10.1371/journal.pone.0016764.Peer-Reviewed Original ResearchConceptsToxic shock syndromeTransgenic miceShock syndromePathogenesis of TSSSmall intestineLethal toxic shock syndromeHLA-DR3 transgenic miceSystematic histopathological examinationSystemic cytokine stormMultiple organ dysfunctionRobust T cell activationSevere inflammatory changesSmall bowel pathologyT cell expansionAnti-inflammatory propertiesSignificant pathological changesT cell activationIFN-γ geneGut permeabilityCytokine stormSEB challengeBowel pathologyInflammatory changesOrgan dysfunctionIntestinal pathology
2007
Chronic low-grade exposure to bacterial superantigens elicits sustained T cell expansion and multiorgan inflammation. Implications for autoimmunity. (130.22)
Rajagopalan G, Smart M, Grande J, David C. Chronic low-grade exposure to bacterial superantigens elicits sustained T cell expansion and multiorgan inflammation. Implications for autoimmunity. (130.22). The Journal Of Immunology 2007, 178: s232-s232. DOI: 10.4049/jimmunol.178.supp.130.22.Peer-Reviewed Original ResearchBacterial superantigensT cellsChronic exposureHLA-DQ8 transgenic miceIntense perivascular infiltrationLow-grade exposurePercentage of CD8MHC class II moleculesAntigen non-specific mannerT cell expansionToxic shock syndromeMHC class IITransgenic mouse modelClass II moleculesMurine MHC class IIPerivascular infiltrationHLA-DR3Inflammatory infiltrateMiniosmotic pumpsShock syndromeImmunological outcomesAcute diseaseMultiorgan inflammationHistological examinationMouse model