2024
In the Eyes of the Beholder—New Mertk Knockout Mouse and Re-Evaluation of Phagocytosis versus Anti-Inflammatory Functions of MERTK
Ghosh S, Finnemann S, Vollrath D, Rothlin C. In the Eyes of the Beholder—New Mertk Knockout Mouse and Re-Evaluation of Phagocytosis versus Anti-Inflammatory Functions of MERTK. International Journal Of Molecular Sciences 2024, 25: 5299. PMID: 38791338, PMCID: PMC11121519, DOI: 10.3390/ijms25105299.Peer-Reviewed Original ResearchReceptor tyrosine kinasesFamily of receptor tyrosine kinasesTAM family of receptor tyrosine kinasesEarly-onset photoreceptor degenerationKnockout mouse modelMolecular functionsNegative regulator of inflammationKnockout phenotypesNegative regulatorMouse geneticsRegulation of inflammationMolecular approachesEmbryonic stem cellsAnti-inflammatory functionsRetinal degenerationTyrosine kinasePhotoreceptor degenerationKnockout miceKnockout modelsMouse modelRodent modelsTAM familyMerTK functionStem cellsAllelesApoptotic 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
2022
Tissue-specific modifier alleles determine Mertk loss-of-function traits
Akalu YT, Mercau ME, Ansems M, Hughes LD, Nevin J, Alberto EJ, Liu XN, He LZ, Alvarado D, Keler T, Kong Y, Philbrick WM, Bosenberg M, Finnemann SC, Iavarone A, Lasorella A, Rothlin CV, Ghosh S. Tissue-specific modifier alleles determine Mertk loss-of-function traits. ELife 2022, 11: e80530. PMID: 35969037, PMCID: PMC9433089, DOI: 10.7554/elife.80530.Peer-Reviewed Original ResearchConceptsAnti-tumor immunityKO miceRetinal pigment epitheliumRetinal degenerationPigment epitheliumPro-inflammatory tumor microenvironmentSyngeneic mouse tumor modelsKO mice displayEarly-onset retinal degenerationSevere retinal degenerationMouse tumor modelsFailure of macrophagesKnockout mouse modelPhotoreceptor outer segmentsMouse modelMice displayTumor modelTumor microenvironmentMacrophage phagocytosisReceptor tyrosine kinasesMiceCritical roleDegenerationMerTKImmunity