6533b7d7fe1ef96bd12683f9
RESEARCH PRODUCT
Myeloid Cells Restrict MCMV and Drive Stress- Induced Extramedullary Hematopoiesis through STAT1
Sabine Macho-maschlerRita RomMathias MüllerJuliana KornhoffAndrea PoelzlRiem GawishUlrich KalinkeLuca FerrareseJasmin SvinkaLena AmenitschNatalija SimonovićZsuzsanna Bago-horvathRobert EferlStipan JonjićTherese LedererTanja BulatDagmar StoiberMario BiaggioMichaela Prchal-murphyVeronika SexlBirgit StroblAstrid KrmpotićMarkus BosmannMarkus BosmannCaroline Lassnigsubject
0301 basic medicineMaleMuromegalovirusMyeloidIFN-II receptorReceptor Interferon alpha-betamonocytes signal transducer and activator of transcription Herpesviridae IFN-I receptor IFN-II receptor L-27 receptor TLR9 agonistmedicine.disease_causeVirus Replication0302 clinical medicineTLR9 agonistMyeloid CellsSTAT1Cells CulturedHerpesviridaeReceptors Interferonsignal transducer and activator of transcriptionvirus diseasesIL-27 receptorHerpesviridae InfectionsExtramedullary hematopoiesisKiller Cells NaturalHaematopoiesismedicine.anatomical_structureSTAT1 Transcription FactorBone marrow suppressionHematopoiesis ExtramedullaryFemalemonocytesBIOMEDICINA I ZDRAVSTVO. Temeljne medicinske znanosti.SpleenBiologyGeneral Biochemistry Genetics and Molecular BiologyHerpesviridaeArticle03 medical and health sciencesStress PhysiologicalmedicineAnimalsBIOMEDICINE AND HEALTHCARE. Basic Medical Sciences.Receptors Interleukinmedicine.diseaseMice Inbred C57BL030104 developmental biologyImmunologySTAT proteinbiology.protein030217 neurology & neurosurgeryGene DeletionSpleenIFN-I receptordescription
Cytomegalovirus (CMV) has a high prevalence worldwide, is often fatal for immunocompromised patients, and causes bone marrow suppression. Deficiency of signal transducer and activator of transcription 1 (STAT1) results in severely impaired antiviral immunity. We have used cell- type restricted deletion of Stat1 to determine the importance of myeloid cell activity for the defense against murine CMV (MCMV). We show that myeloid STAT1 limits MCMV burden and infection- associated pathology in the spleen but does not affect ultimate clearance of infection. Unexpectedly, we found an essential role of myeloid STAT1 in the induction of extramedullary hematopoiesis (EMH). The EMH- promoting function of STAT1 was not restricted to MCMV infection but was also observed during CpG oligodeoxynucleotide-induced sterile inflammation. Collectively, we provide genetic evidence that signaling through STAT1 in myeloid cells is required to restrict MCMV at early time points post-infection and to induce compensatory hematopoiesis in the spleen.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-02-01 |