Reference : Integrins and bone metastasis: integrating tumor cell and stromal cell interactions
Scientific journals : Article
Human health sciences : Endocrinology, metabolism & nutrition
Human health sciences : Cardiovascular & respiratory systems
http://hdl.handle.net/10993/27288
Integrins and bone metastasis: integrating tumor cell and stromal cell interactions
English
Schneider, Jochen mailto [University of Luxembourg > Luxembourg Centre for Systems Biomedicine (LCSB) > >]
Amend, S. R. [> >]
Weilbaecher, K. N. [> >]
2011
BONE
Elsevier
48
1
54-65
Yes (verified by ORBilu)
8756-3282
1873-2763
[en] Integrins ; Bone metastasis ; Osteoclasts ; Endothelium ; Platelets ; Cancer therapy
[en] Integrins on both tumor cells and the supporting host stromal cells in bone (osteoclasts, new blood vessels, inflammatory cells, platelets and bone marrow stromal cells) play key roles in enhancing bone metastasis. Tumor cells localize to specific tissues through integrin-mediated contacts with extracellular matrix and stromal cells. Integrin expression and signaling are perturbed in cancer cells, allowing them to "escape" from cell-cell and cell-matrix tethers, invade, migrate and colonize within new tissues and matrices. Integrin signaling through αvβ3 and VLA-4 on tumor cells can promote tumor metastasis to and proliferation in the bone microenvironment. Osteoclast (OC) mediated bone resorption is a critical component of bone metastasis and can promote tumor growth in bone and αvβ3 integrins are critical to OC function and development. Tumors in the bone microenvironment can recruit new blood vessel formation, platelets, pro-tumor immune cells and bone marrow stromal cells that promote tumor growth and invasion in bone. Integrins and their ligands play critical roles in platelet aggregation (αvβ3 and αIIbβ3), hematopoietic cell mobilization (VLA-4 and osteopontin), neoangiogenesis (αvβ3, αvβ5, α6β4, and β1 integrin) and stromal function (osteopontin and VLA-4). Integrins are involved in the pathogenesis of bone metastasis at many levels and further study to define integrin dysregulation by cancer will yield new therapeutic targets for the prevention and treatment of bone metastasis.
Luxembourg Centre for Systems Biomedicine (LCSB): Medical Translational Research (J. Schneider Group)
http://hdl.handle.net/10993/27288
10.1016/j.bone.2010.09.016

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