Stem cells tightly regulate dead cell clearance to maintain tissue fitness
Stewart K, Abdusselamoglu M, Tierney M, Gola A, Hur Y, Gonzales K, Yuan S, Bonny A, Yang Y, Infarinato N, Cowley C, Levorse J, Pasolli H, Ghosh S, Rothlin C, Fuchs E. Stem cells tightly regulate dead cell clearance to maintain tissue fitness. Nature 2024, 633: 407-416. PMID: 39169186, PMCID: PMC11390485, DOI: 10.1038/s41586-024-07855-6.Peer-Reviewed Original ResearchStem cellsImmune-privileged nicheHair follicle stem cellsStem cell functionFollicle stem cellsTissue fitnessMesenchymal tissue cellsBillions of cellsDendritic cellsTissue stemProgenitor cellsPreserving tissue integrityDead cell clearanceClearance genesCell clearanceCell functionFunctional evidenceDying cellsHealthy counterpartsCell deathNon-motileTissue cellsHair cycleProfessional phagocytesApoptotic corpsesApoptotic cell identity induces distinct functional responses to IL-4 in efferocytic macrophages
Liebold I, Al Jawazneh A, Casar C, Lanzloth C, Leyk S, Hamley M, Wong M, Kylies D, Gräfe S, Edenhofer I, Aranda-Pardos I, Kriwet M, Haas H, Krause J, Hadjilaou A, Schromm A, Richardt U, Eggert P, Tappe D, Weidemann S, Ghosh S, Krebs C, A-Gonzalez N, Worthmann A, Lohse A, Huber S, Rothlin C, Puelles V, Jacobs T, Gagliani N, Bosurgi L. Apoptotic cell identity induces distinct functional responses to IL-4 in efferocytic macrophages. Science 2024, 384: eabo7027. PMID: 38574142, DOI: 10.1126/science.abo7027.Peer-Reviewed Original ResearchConceptsApoptotic neutrophilsApoptotic cellsIL-4-induced gene expressionUptake of apoptotic neutrophilsApoptotic cell clearanceCell lineage identityResponse to IL-4Cell identityEfferocytic macrophagesPhagocytic receptorsGene expressionLineage identityCell clearanceApoptotic hepatocytesHeterogeneous cellsCellsMouse modelT cellsParasite-induced pathologyIL-4HepatocytesMacrophagesInterleukin-4EngulfmentPhenotype