2017
Concomitant Disruption of CD4 and CD8 Genes Facilitates the Development of Double Negative αβ TCR+ Peripheral T Cells That Respond Robustly to Staphylococcal Superantigen
Chowdhary VR, Krogman A, Tilahun AY, Alexander MP, David CS, Rajagopalan G. Concomitant Disruption of CD4 and CD8 Genes Facilitates the Development of Double Negative αβ TCR+ Peripheral T Cells That Respond Robustly to Staphylococcal Superantigen. The Journal Of Immunology 2017, 198: 4413-4424. PMID: 28468970, PMCID: PMC5471834, DOI: 10.4049/jimmunol.1601991.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCD4 AntigensCD8 AntigensEnterotoxinsHistocompatibility Antigens Class IIHLA-DQ AntigensHLA-DR3 AntigenMiceMice, KnockoutMice, TransgenicReceptors, Antigen, T-Cell, alpha-betaSpleenSuperantigensThymus GlandT-Lymphocyte SubsetsConceptsDNT cellsDKO miceClass II moleculesΑβ TCRT cellsBacterial superantigensCD8 coreceptorIntact MHC class ILupus-like autoimmune diseaseEnterotoxin BHLA-DQ8 moleculesMHC class II moleculesAnti-nuclear AbsPeripheral T cellsDouble knockout miceMurine MHC class II moleculesMHC class IThymic positive selectionStaphylococcal enterotoxin BCD4/CD8 coreceptorsRegulatory cellsHLA-DR3Splenic CD3WT miceAutoimmune diseases
2015
Superantigens produced by catheter-associated Staphylococcus aureus elicit systemic inflammatory disease in the absence of bacteremia
Chung J, Greenwood-Quaintance K, Karau MJ, Tilahun A, Khaleghi SR, Chowdhary VR, David CS, Patel R, Rajagopalan G. Superantigens produced by catheter-associated Staphylococcus aureus elicit systemic inflammatory disease in the absence of bacteremia. Journal Of Leukocyte Biology 2015, 98: 271-281. PMID: 25979434, PMCID: PMC4501677, DOI: 10.1189/jlb.4a1214-577rr.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCatheter-Related InfectionsCatheters, IndwellingCD4-Positive T-LymphocytesEnterotoxinsGene DeletionHistocompatibility AntigensHumansKidneyLiverLungLymphocyte ActivationMiceMice, TransgenicReceptors, Antigen, T-Cell, alpha-betaSpleenStaphylococcal InfectionsStaphylococcus aureusSuperantigensConceptsS. aureusHLA-DR3 transgenic miceLong intravenous catheterSystemic immune activationSerum cytokine levelsSystemic inflammatory diseaseAbsence of bacteremiaMHC class II moleculesInvasive staphylococcal diseaseToxigenic S. aureusClinical S. aureus isolatesS. aureus isolatesClass II moleculesIsogenic S. aureusCytokine levelsHLA-DR3Immune activationInflammatory diseasesIntravenous cathetersStaphylococcal diseaseRole of SAgsDevice-associated infectionsT cellsClinical consequencesForeign body
2005
Endogenous Superantigens Shape Response to Exogenous Superantigens
Rajagopalan G, Singh M, Sen M, Murali N, Nath K, David C. Endogenous Superantigens Shape Response to Exogenous Superantigens. MSphere 2005, 12: 1119-1122. PMID: 16148182, PMCID: PMC1235787, DOI: 10.1128/cdli.12.9.1119-1122.2005.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsEnterotoxinsHLA-DR2 AntigenHumansMiceMice, TransgenicReceptors, Antigen, T-Cell, alpha-betaSuperantigensThymus GlandT-Lymphocytes
2002
Modulation of insulitis and type 1 diabetes by transgenic HLA-DR3 and DQ8 in NOD mice lacking endogenous MHC class II
Kudva Y, Rajagopalan G, Raju R, Abraham R, Smart M, Hanson J, David C. Modulation of insulitis and type 1 diabetes by transgenic HLA-DR3 and DQ8 in NOD mice lacking endogenous MHC class II. Human Immunology 2002, 63: 987-999. PMID: 12392851, DOI: 10.1016/s0198-8859(02)00435-4.Peer-Reviewed Original ResearchConceptsType 1 diabetesEndogenous class II moleculesClass II moleculesHLA-DR3NOD miceHuman leukocyte antigen (HLA) transgenic miceTransgenic miceEndogenous MHC class IICyclophosphamide-induced diabetesIntra-islet infiltrationMultiple low dosesDouble transgenic miceGroups of miceMHC class IINonobese diabetic (NOD) backgroundTransgenic expressionSpontaneous diabetesDiabetic backgroundUnmanipulated miceDQ8DiabetesLow dosesClass IILess infiltrationMice