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Cxcr3 expressing leukocytes are necessary for neurofibroma formation in mice

ABSTRACT: Plexiform neurofibroma is a major contributor to morbidity in Neurofibromatosis type I (NF1) patients. Macrophages and mast cells infiltrate neurofibroma, and data from mouse models implicate these leukocytes in neurofibroma development. Anti-inflammatory therapy targeting these cell populations has been suggested as a means to prevent neurofibroma development. Here, we compare gene expression in inflamed nerves from NF1 models which invariably form neurofibroma to those with inflammation driven by EGFR overexpression which rarely progresses to neurofibroma. We find that the chemokine Cxcl10 is uniquely up-regulated in NF1 mice that invariably develop neurofibroma. Global deletion of the CXCL10 receptor, Cxcr3, prevented neurofibroma development in these neurofibroma-prone mice. Cxcr3 expression localized to T cells and dendritic cells (DCs) in both inflamed nerves and neurofibromas. These data support a heretofore unappreciated role for T cells/DCs in neurofibroma initiation.

ORGANISM(S): Mus musculus

PROVIDER: GSE122730 | GEO | 2019/02/24

REPOSITORIES: GEO

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Cxcr3 expressing leukocytes are necessary for neurofibroma formation in mice

Project description:Plexiform neurofibroma is a major contributor to morbidity in Neurofibromatosis type I (NF1) patients. Macrophages and mast cells infiltrate neurofibroma, and data from mouse models implicate these leukocytes in neurofibroma development. Anti-inflammatory therapy targeting these cell populations has been suggested as a means to prevent neurofibroma development. Here, we compare gene expression in inflamed nerves from NF1 models which invariably form neurofibroma to those with inflammation driven by EGFR overexpression which rarely progresses to neurofibroma. We find that the chemokine Cxcl10 is uniquely up-regulated in NF1 mice that invariably develop neurofibroma. Global deletion of the Cxcl10 receptor Cxcr3 prevented neurofibroma development in these neurofibroma-prone mice. Cxcr3 expression localized to T cells and dendritic cells (DCs) in both inflamed nerves and neurofibromas. These data support a heretofore unappreciated role for T cells/DCs in neurofibroma initiation.

2018-11-28 | GSE122999 | GEO

Expression data of three sets of cells: (1) Schwann cells and macrophages from 1m-old WT DRG, (2) Schwann cells (Nf1-/-) and macrophages (Nf1+/+) from 1m-old neurofibroma, (3) Schwann cells (Nf1-/-) and macrophages (Nf1+/+) from 7m-old neurofibroma

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Cxcr3 expressing leukocytes are necessary for neurofibroma formation in mice

Project description:Cxcr3 expressing leukocytes are necessary for neurofibroma formation in mice

| PRJNA507180 | ENA

Cxcr3 expressing leukocytes are necessary for neurofibroma formation in mice

Project description:Cxcr3 expressing leukocytes are necessary for neurofibroma formation in mice

| PRJNA507362 | ENA

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Pro-inflammatory Beta Cell Small Extracellular Vesicles Induce Beta Cell Failure Through Activation of the CXCL10/CXCR3 Axis in Diabetes

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Genome-wide gene expression analysis of neurofibroma-derived NF1+/- and NF1-/- Schwann cells

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Cxcl10 and Cxcr3 regulate self-renewal and differentiation of hematopoietic stem cells

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