2024
The human CD47 checkpoint is targeted by an immunosuppressive Aedes aegypti salivary factor to enhance arboviral skin infectivity
Marin-Lopez A, Huck J, Esterly A, Azcutia V, Rosen C, Garcia-Milian R, Sefik E, Vidal-Pedrola G, Raduwan H, Chen T, Arora G, Halene S, Shaw A, Palm N, Flavell R, Parkos C, Thangamani S, Ring A, Fikrig E. The human CD47 checkpoint is targeted by an immunosuppressive Aedes aegypti salivary factor to enhance arboviral skin infectivity. Science Immunology 2024, 9: eadk9872. PMID: 39121194, DOI: 10.1126/sciimmunol.adk9872.Peer-Reviewed Original ResearchConceptsSuppress antiviral responsesArthropod proteinsPathogen replicationAntiviral responseProtein AVertebrate hostsMosquito salivary proteinsUp-regulatedBlood feedingHuman macrophagesPleomorphic effectsSkin infectionsZika virus disseminationInhibit proinflammatory responsesSalivary proteinsProteinNatural ligandWhite blood cellsHuman skin explantsProinflammatory responseMosquito salivaVirus disseminationHuman CD47Salivary factorsArbovirus infection
2023
IL-6 trans-signaling in a humanized mouse model of scleroderma
Odell I, Agrawal K, Sefik E, Odell A, Caves E, Kirkiles-Smith N, Horsley V, Hinchcliff M, Pober J, Kluger Y, Flavell R. IL-6 trans-signaling in a humanized mouse model of scleroderma. Proceedings Of The National Academy Of Sciences Of The United States Of America 2023, 120: e2306965120. PMID: 37669366, PMCID: PMC10500188, DOI: 10.1073/pnas.2306965120.Peer-Reviewed Original ResearchConceptsBone marrow-derived immune cellsIL-6Human hematopoietic stem cellsImmune cellsT cellsScleroderma skinSoluble IL-6 receptorCD8 T cellsHumanized mouse modelPathogenesis of sclerodermaMesenchymal cellsFibroblast-derived IL-6IL-6 receptorIL-6 signalingT cell activationHuman IL-6Human T cellsExpression of collagenFibrosis improvementPansclerotic morpheaHuman endothelial cellsHumanized miceReduced markersSkin graftsHuman CD4New insights into programmed cell death protein 1 blockade-associated cutaneous immune-related adverse events
Micevic G, Daniels A, Flavell R. New insights into programmed cell death protein 1 blockade-associated cutaneous immune-related adverse events. British Journal Of Dermatology 2023, 189: 355-357. PMID: 37471669, PMCID: PMC10503525, DOI: 10.1093/bjd/ljad236.Peer-Reviewed Original ResearchConceptsCutaneous immune-related adverse eventsImmune-related adverse eventsSelf-reactive T cellsCheckpoint receptor PD-1PD-1 inhibitorsHalf of patientsImmune checkpoint blockadeAntitumor immune responseReceptor PD-1Adverse eventsCheckpoint blockadePD-1Immune toleranceCTLA-4T cellsImmune responseLandmark studiesMolecular mechanismsFunctional roleCritical functional rolePatientsBlockadeDermatologistsImportant clues
2022
Epiregulin is a dendritic cell–derived EGFR ligand that maintains skin and lung fibrosis
Odell I, Steach H, Gauld S, Reinke-Breen L, Karman J, Carr T, Wetter J, Phillips L, Hinchcliff M, Flavell R. Epiregulin is a dendritic cell–derived EGFR ligand that maintains skin and lung fibrosis. Science Immunology 2022, 7: eabq6691. PMID: 36490328, PMCID: PMC9840167, DOI: 10.1126/sciimmunol.abq6691.Peer-Reviewed Original ResearchConceptsLung fibrosisDendritic cellsImmune cellsDiffuse cutaneous systemic sclerosisPersistence of fibrosisCutaneous systemic sclerosisExtent of fibrosisType I interferonSystemic sclerosisAutoimmune diseasesAntifibrotic targetsTherapeutic administrationMouse modelI interferonLung samplesLung explantsFibrosisFibrotic tissueImmune signalsEpiregulin expressionPatient's skinExtracellular matrix productionGenetic deficiencyEpiregulinEGFR ligands