A discovery-based proteomics approach identifies protein disulphide isomerase (PDIA1) as a biomarker of β cell stress in type 1 diabetes
Syed F, Singhal D, Raedschelders K, Krishnan P, Bone R, McLaughlin M, Van Eyk J, Mirmira R, Yang M, Mamula M, Wu H, Liu X, Evans-Molina C. A discovery-based proteomics approach identifies protein disulphide isomerase (PDIA1) as a biomarker of β cell stress in type 1 diabetes. EBioMedicine 2022, 87: 104379. PMID: 36463755, PMCID: PMC9719098, DOI: 10.1016/j.ebiom.2022.104379.Peer-Reviewed Original ResearchConceptsT-cell adoptive transferCell adoptive transferNOD miceNOD-SCID miceType 1 diabetesΒ-cell stressAdoptive transferPre-diabetic NOD miceFemale NOD miceNon-diabetic controlsRecent-onset T1DSerum of childrenDistinct mouse modelsΒ-cell functionHuman organ donorsWeeks of agePotential human biomarkersDisease-related changesΒ-cell deathCell protein expressionNOD isletsAutoantibody positivityDiabetes onsetT1D developmentImmune activation