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- W4379015896 abstract "Remodeling of the tissue niche is often evident in diseases, yet, the stromal alterations and their contribution to pathogenesis are poorly characterized. Bone marrow fibrosis is a maladaptive feature of primary myelofibrosis (PMF). We performed lineage tracing and found that most collagen-expressing myofibroblasts were derived from leptin-receptor-positive (LepR+) mesenchymal cells, whereas a minority were from Gli1-lineage cells. Deletion of Gli1 did not impact PMF. Unbiased single-cell RNA sequencing (scRNA-seq) confirmed that virtually all myofibroblasts originated from LepR-lineage cells, with reduced expression of hematopoietic niche factors and increased expression of fibrogenic factors. Concurrently, endothelial cells upregulated arteriolar-signature genes. Pericytes and Sox10+ glial cells expanded drastically with heightened cell-cell signaling, suggesting important functional roles in PMF. Chemical or genetic ablation of bone marrow glial cells ameliorated fibrosis and improved other pathology in PMF. Thus, PMF involves complex remodeling of the bone marrow microenvironment, and glial cells represent a promising therapeutic target." @default.
- W4379015896 created "2023-06-02" @default.
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- W4379015896 date "2023-06-01" @default.
- W4379015896 modified "2023-10-01" @default.
- W4379015896 title "Systematic dissection of coordinated stromal remodeling identifies Sox10 glial cells as a therapeutic target in myelofibrosis" @default.
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- W4379015896 doi "https://doi.org/10.1016/j.stem.2023.05.002" @default.
- W4379015896 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37267917" @default.
- W4379015896 hasPublicationYear "2023" @default.
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