2024
NKX2-2 based nuclei sorting on frozen human archival pancreas enables the enrichment of islet endocrine populations for single-nucleus RNA sequencing
Xie G, Toledo M, Hu X, Yong H, Sanchez P, Liu C, Naji A, Irianto J, Wang Y. NKX2-2 based nuclei sorting on frozen human archival pancreas enables the enrichment of islet endocrine populations for single-nucleus RNA sequencing. BMC Genomics 2024, 25: 427. PMID: 38689254, PMCID: PMC11059690, DOI: 10.1186/s12864-024-10335-w.Peer-Reviewed Original ResearchConceptsSingle-nucleus RNA sequencingRNA sequencingNuclei sortingSnRNA-seqGene expressionEndocrine populationsFluorescence-activated nuclei sortingHuman isletsGene expression librariesNuclei isolation protocolSingle-cell RNA sequencingFrozen archival tissuesIsolated human isletsHuman pancreatic endocrine cellsSingle-cell transcriptomicsTranscriptomic studiesCytoplasmic contaminationTranscriptome profilingConclusionsOur workNKX2-2Isolated nucleiRNA integrityLiving cellsIsolation protocolPancreatic endocrine cellsModeling type 1 diabetes progression using machine learning and single-cell transcriptomic measurements in human islets
Patil A, Schug J, Liu C, Lahori D, Descamps H, Consortium T, Naji A, Kaestner K, Faryabi R, Vahedi G. Modeling type 1 diabetes progression using machine learning and single-cell transcriptomic measurements in human islets. Cell Reports Medicine 2024, 5: 101535. PMID: 38677282, PMCID: PMC11148720, DOI: 10.1016/j.xcrm.2024.101535.Peer-Reviewed Original ResearchSingle-cell transcriptomic measurementsGene expression of single cellsGene signatureSingle-cell analysisTranscriptional outputTranscriptomic measurementsUnique gene signatureNon-diabetic organ donorsAnalysis of isletsGene expressionAutoantibody-positive donorsPrediction of T1DHuman isletsBeta cellsCell typesT1D developmentSingle cellsGenesType 1 diabetes progressionCellsT1D onsetType 1 diabetesIsletsImmune cellsNon-diabetics
2023
Checkpoint kinase 2 controls insulin secretion and glucose homeostasis
Chong A, Vandana J, Jeng G, Li G, Meng Z, Duan X, Zhang T, Qiu Y, Duran-Struuck R, Coker K, Wang W, Li Y, Min Z, Zuo X, de Silva N, Chen Z, Naji A, Hao M, Liu C, Chen S. Checkpoint kinase 2 controls insulin secretion and glucose homeostasis. Nature Chemical Biology 2023, 20: 566-576. PMID: 37945898, PMCID: PMC11062908, DOI: 10.1038/s41589-023-01466-4.Peer-Reviewed Original ResearchGlucose-stimulated insulin secretionInsulin secretionHuman β-cellsCynomolgus macaquesΒ-cellsImproved glucose clearanceType 2 diabetic human isletsDiabetic mouse modelDiabetic human isletsHuman β-cell lineDiscovery of insulinT2D conditionsΒ-cell lineGlucose toleranceGlucose clearanceMouse modelGlucose homeostasisMice showHuman isletsSecretionVivo studiesUntargeted metabolic profilingCell linesCheckpoint kinase 2Islets