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Bone marrow niche interactome (null)
- Target
- null
- Molecular classification
- Other (complex interactome or microenvironment), G protein-coupled receptor, Endothelial cell, Mesenchymal stromal cell, Osteoblast, CXCL12-abundant reticular cell, Pericyte, various extracellular matrix molecules
01
Overview
The bone marrow niche interactome refers to the web of cellular and molecular interactions within the bone marrow microenvironment that collectively govern hematopoietic stem cell fate and function. This system comprises multiple cell types—mesenchymal stromal cells, osteoblasts, endothelial cells, pericytes, reticular cells, fibroblasts, adipocytes—and their associated extracellular matrix and soluble signals. The niche regulates critical processes such as HSC maintenance, self-renewal, migration, differentiation, and response to organismal injury or stress. Therapeutic strategies often target specific niche components (e.g., CXCL12-CXCR4 axis, S1P signaling) to manipulate hematopoiesis or treat hematologic malignancies
- Other names
- Bone marrow nicheHematopoietic niche microenvironmentBM nicheHSC niche
02
Mechanism of action
Mobilization of hematopoietic stem cells by disrupting CXCL12-CXCR4 axis\nModulation of S1P receptor signaling\nOsteoblast stimulation for niche remodeling
03
Biological functions
Regulation of hematopoiesisHSC maintenance, quiescence, self-renewal, migration, differentiationSignal transductionImmune response modulationBone remodeling
04
Disease associations
Cancer (e.g., metastatic niche, leukemia)Inflammatory disordersHematologic diseases (e.g., bone marrow failure, myeloproliferative neoplasms)Immune system disorders
05
Safety considerations
Altered bone marrow niche function can result in unwanted HSC mobilization or suppressionRisk of myelosuppressionDisruption may facilitate tumor cell colonization/metastasis
06
Interacting drugs
Granulocyte colony-stimulating factor (G-CSF)
5 more in the full profile.
07
Biomarkers
CD34 (HSC marker)CD150, CD244, CD48 (SLAM family, niche/HSC association)LEPR, SP7 (MSC and osteolineage markers)CXCL12, Vwf, Kitl (niche ligand markers)
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