0000000000461647

AUTHOR

Laura Strauss

showing 2 related works from this author

RORC1 Regulates Tumor-Promoting "Emergency" Granulo-Monocytopoiesis

2015

Cancer-driven granulo-monocytopoiesis stimulates expansion of tumor promoting myeloid populations, mostly myeloid-derived suppressor cells (MDSCs) and tumor-associated macrophages (TAMs). We identified subsets of MDSCs and TAMs based on the expression of retinoic-acid-related orphan receptor (RORC1/RORγ) in human and mouse tumor bearers. RORC1 orchestrates myelopoiesis by suppressing negative (Socs3 and Bcl3) and promoting positive (C/EBPβ) regulators of granulopoiesis, as well as the key transcriptional mediators of myeloid progenitor commitment and differentiation to the monocytic/macrophage lineage (IRF8 and PU.1). RORC1 supported tumor-promoting innate immunity by protecting MDSCs from …

MaleCancer ResearchMyeloidNeutrophilsMacrophageCellular differentiationApoptosisMonocyteMonocyteshemic and lymphatic diseasesMyeloid CellsSOCS3Myeloid CellMyelopoiesisMice KnockoutMicroscopy ConfocalReverse Transcriptase Polymerase Chain ReactionMedicine (all)NeutrophilCell DifferentiationNuclear Receptor Subfamily 1 Group F Member 3Animals; Apoptosis; Cell Differentiation; Cell Line Tumor; Cytokines; Female; Gene Expression Regulation Neoplastic; Granulocytes; Humans; Immunohistochemistry; Macrophages; Male; Mice 129 Strain; Mice Inbred C57BL; Mice Knockout; Microscopy Confocal; Monocytes; Myeloid Cells; Myelopoiesis; Neoplasms Experimental; Neutrophils; Nuclear Receptor Subfamily 1 Group F Member 3; Reverse Transcriptase Polymerase Chain Reaction; Tumor Burden; Cancer Research; Cell Biology; Oncology; Medicine (all)ImmunohistochemistryTumor BurdenGene Expression Regulation NeoplasticHaematopoiesismedicine.anatomical_structureOncologyCytokinesFemaleMyelopoiesisHumanMice 129 StrainBiologySettore MED/08 - Anatomia PatologicaGranulopoiesisArticleMyelopoiesiCell Line TumormedicineAnimalsHumansCytokineInnate immune systemAnimalMacrophagesApoptosiGranulocyteNeoplasms ExperimentalCell BiologyMice Inbred C57BLImmunologyCancer researchIRF8Granulocytes
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Tumor-Derived Prostaglandin E2 Promotes p50 NF-κB-Dependent Differentiation of Monocytic MDSCs

2020

Abstract Myeloid-derived suppressor cells (MDSC) include immature monocytic (M-MDSC) and granulocytic (PMN-MDSC) cells that share the ability to suppress adaptive immunity and to hinder the effectiveness of anticancer treatments. Of note, in response to IFNγ, M-MDSCs release the tumor-promoting and immunosuppressive molecule nitric oxide (NO), whereas macrophages largely express antitumor properties. Investigating these opposing activities, we found that tumor-derived prostaglandin E2 (PGE2) induces nuclear accumulation of p50 NF-κB in M-MDSCs, diverting their response to IFNγ toward NO-mediated immunosuppression and reducing TNFα expression. At the genome level, p50 NF-κB promoted binding …

0301 basic medicineCancer ResearchCellular differentiationProstaglandin E2 receptormedicine.medical_treatmentMelanoma ExperimentalApoptosisSettore MED/08 - Anatomia PatologicaNitric OxideDinoprostoneMonocytesInterferon-gammaMice03 medical and health sciences0302 clinical medicineImmune systemOxytocicsImmune ToleranceTumor Cells CulturedmedicineAnimalsHumansProstaglandin E2Cell ProliferationChemistryMyeloid-Derived Suppressor CellsNF-kappa B p50 SubunitCell DifferentiationImmunotherapyAcquired immune systemPancreatic Neoplasms030104 developmental biologyOncologyp50 NF-κB differentiation of monocytic MDSC.030220 oncology & carcinogenesisMyeloid-derived Suppressor CellCancer researchTumor necrosis factor alphaColorectal Neoplasmsmedicine.drugCancer Research
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