2019
Autoantibodies against Neurologic Antigens in Nonneurologic Autoimmunity
Stathopoulos P, Chastre A, Waters P, Irani S, Fichtner ML, Benotti ES, Guthridge JM, Seifert J, Nowak RJ, Buckner JH, Holers VM, James JA, Hafler DA, O’Connor K. Autoantibodies against Neurologic Antigens in Nonneurologic Autoimmunity. The Journal Of Immunology 2019, 202: ji1801295. PMID: 30824481, PMCID: PMC6452031, DOI: 10.4049/jimmunol.1801295.Peer-Reviewed Original ResearchConceptsSystemic lupus erythematosusRheumatoid arthritisControl cohortNeuromyelitis optica spectrum disorderSurface AgOptica spectrum disorderMyelin oligodendrocyte glycoproteinHealthy donor seraType 1 diabetesB cell toleranceNeurologic autoimmunitySLE patientsLupus erythematosusSuch autoantibodiesT1D patientsAutoimmune diseasesHigh titer AbsOligodendrocyte glycoproteinSystemic autoimmunityDonor seraLarge cohortRare caseAutoantibodiesAquaporin-4Cell tolerance
2016
Evaluation of KIR4.1 as an Immune Target in Multiple Sclerosis
Chastre A, Hafler DA, O'Connor KC. Evaluation of KIR4.1 as an Immune Target in Multiple Sclerosis. New England Journal Of Medicine 2016, 374: 1495-1496. PMID: 27074083, PMCID: PMC4918464, DOI: 10.1056/nejmc1513302.Peer-Reviewed Original Research
2013
Protein array–based profiling of CSF identifies RBPJ as an autoantigen in multiple sclerosis
Querol L, Clark PL, Bailey MA, Cotsapas C, Cross AH, Hafler DA, Kleinstein SH, Lee JY, Yaari G, Willis SN, O'Connor KC. Protein array–based profiling of CSF identifies RBPJ as an autoantigen in multiple sclerosis. Neurology 2013, 81: 956-963. PMID: 23921886, PMCID: PMC3888197, DOI: 10.1212/wnl.0b013e3182a43b48.Peer-Reviewed Original ResearchConceptsCSF of patientsMultiple sclerosisNeurologic diseaseEpstein-Barr virus infectionImmunoglobulin GElevated immunoglobulin GInflammatory neurologic diseasesSubset of patientsLarger validation cohortRecombination signal binding proteinImmunoglobulin kappa J regionCSF autoantibodiesValidation cohortControl subjectsSerum reactivityAutoantigen candidatesHigh prevalenceVirus infectionPatientsAutoantibodiesCSFSclerosisArray-based profilingDiseaseELISASerum autoantibodies to myelin peptides distinguish acute disseminated encephalomyelitis from relapsing– remitting multiple sclerosis
Van Haren K, Tomooka BH, Kidd BA, Banwell B, Bar-Or A, Chitnis T, Tenembaum SN, Pohl D, Rostasy K, Dale RC, O’Connor K, Hafler DA, Steinman L, Robinson WH. Serum autoantibodies to myelin peptides distinguish acute disseminated encephalomyelitis from relapsing– remitting multiple sclerosis. Multiple Sclerosis Journal 2013, 19: 1726-1733. PMID: 23612879, PMCID: PMC4411183, DOI: 10.1177/1352458513485653.Peer-Reviewed Original ResearchConceptsAcute disseminated encephalomyelitisMyelin basic proteinDisseminated encephalomyelitisMyelin peptidesMultiple sclerosisIgM autoantibodiesIsotype-specific secondary antibodiesPediatric acute disseminated encephalomyelitisRelapsing-remitting multiple sclerosisPediatric multiple sclerosisProteolipid proteinMicroarrays softwareBasic proteinMyelin antigensLaboratory featuresPeptide autoantibodiesMS seraSerum autoantibodiesIgG autoantibodiesAutoantibody biomarkersSerum IgGOligodendrocyte-specific proteinAutoantibody reactivityAdult MSAutoantibodies
2007
Self-antigen tetramers discriminate between myelin autoantibodies to native or denatured protein
O'Connor KC, McLaughlin KA, De Jager PL, Chitnis T, Bettelli E, Xu C, Robinson WH, Cherry SV, Bar-Or A, Banwell B, Fukaura H, Fukazawa T, Tenembaum S, Wong SJ, Tavakoli NP, Idrissova Z, Viglietta V, Rostasy K, Pohl D, Dale RC, Freedman M, Steinman L, Buckle GJ, Kuchroo VK, Hafler DA, Wucherpfennig KW. Self-antigen tetramers discriminate between myelin autoantibodies to native or denatured protein. Nature Medicine 2007, 13: 211-217. PMID: 17237795, PMCID: PMC3429369, DOI: 10.1038/nm1488.Peer-Reviewed Original ResearchConceptsAcute disseminated encephalomyelitisMyelin oligodendrocyte glycoproteinMultiple sclerosisFluorescent-activated cell sortingRole of autoantibodiesExperimental autoimmune encephalomyelitisConformation-independent antibodiesDiscrimination of antibodiesMOG-specific autoantibodiesDisseminated encephalomyelitisMOG peptidesAutoimmune encephalomyelitisOligodendrocyte glycoproteinAutoantibody detectionTarget antigenAutoantibodiesMS casesELISA methodWestern blottingRadioimmunoassayAntibodiesEncephalomyelitisAntigen domainSensitive assayConformation-sensitive antibodies
2005
Antibodies from Inflamed Central Nervous System Tissue Recognize Myelin Oligodendrocyte Glycoprotein
O’Connor K, Appel H, Bregoli L, Call ME, Catz I, Chan JA, Moore NH, Warren KG, Wong SJ, Hafler DA, Wucherpfennig KW. Antibodies from Inflamed Central Nervous System Tissue Recognize Myelin Oligodendrocyte Glycoprotein. The Journal Of Immunology 2005, 175: 1974-1982. PMID: 16034142, PMCID: PMC4515951, DOI: 10.4049/jimmunol.175.3.1974.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAutoantibodiesBinding Sites, AntibodyCentral Nervous SystemDemyelinating Autoimmune Diseases, CNSFemaleFluoroimmunoassayHumansMaleMolecular Sequence DataMultiple SclerosisMyelin ProteinsMyelin-Associated GlycoproteinMyelin-Oligodendrocyte GlycoproteinRadioimmunoassaySolutionsConceptsMyelin oligodendrocyte glycoproteinMultiple sclerosisCNS diseaseOligodendrocyte glycoproteinCNS tissueChronic inflammatory CNS diseasesAutoantibody-mediated pathologyInflammatory CNS diseasesCentral nervous system tissueInflammatory CNS diseaseCases of encephalitisHigh-affinity autoantibodiesCases of subacuteNervous system tissueCNS parenchymaMOG autoantibodiesMS patientsOligodendrocyte lossMOG-AbCNS diseasesAutoantibodiesCerebrospinal fluidMOG proteinPostmortem casesControl tissues
2003
Myelin basic protein-reactive autoantibodies in the serum and cerebrospinal fluid of multiple sclerosis patients are characterized by low-affinity interactions
O'Connor KC, Chitnis T, Griffin DE, Piyasirisilp S, Bar-Or A, Khoury S, Wucherpfennig KW, Hafler DA. Myelin basic protein-reactive autoantibodies in the serum and cerebrospinal fluid of multiple sclerosis patients are characterized by low-affinity interactions. Journal Of Neuroimmunology 2003, 136: 140-148. PMID: 12620653, DOI: 10.1016/s0165-5728(03)00002-x.Peer-Reviewed Original ResearchConceptsMyelin basic proteinMultiple sclerosisCerebrospinal fluidSoluble myelin basic proteinSemple rabies vaccinePresence of autoantibodiesMultiple sclerosis patientsSera of patientsFraction of patientsAnti-MBP antibodiesHigh-affinity autoantibodiesBasic proteinMBP autoantibodiesRelevant autoantibodiesMS patientsSclerosis patientsAutoimmune diseasesHumoral responseRabies vaccineAutoantibodiesPatientsImmunodominant antigensSerumDiseaseSolid-phase assays