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- W2116991471 abstract "We generated VEGF-null fibrosarcomas from VEGF-loxP mouse embryonic fibroblasts to investigate the mechanisms of tumor escape after VEGF inactivation. These cells were found to be tumorigenic and angiogenic in vivo in spite of the absence of tumor-derived VEGF. However, VEGF derived from host stroma was readily detected in the tumor mass and treatment with a newly developed anti-VEGF monoclonal antibody substantially inhibited tumor growth. The functional significance of stroma-derived VEGF indicates that the recruitment of stromal cells is critical for the angiogenic and tumorigenic properties of these cells. Here we identified PDGF AA as the major stromal fibroblast chemotactic factor produced by tumor cells, and demonstrated that disrupting the paracrine PDGFR alpha signaling between tumor cells and stromal fibroblasts by soluble PDGFR alpha-IgG significantly reduced tumor growth. Thus, PDGFR alpha signaling is required for the recruitment of VEGF-producing stromal fibroblasts for tumor angiogenesis and growth. Our findings highlight a novel aspect of PDGFR alpha signaling in tumorigenesis." @default.
- W2116991471 created "2016-06-24" @default.
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- W2116991471 date "2004-07-01" @default.
- W2116991471 modified "2023-10-13" @default.
- W2116991471 title "VEGF-null cells require PDGFR α signaling-mediated stromal fibroblast recruitment for tumorigenesis" @default.
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- W2116991471 doi "https://doi.org/10.1038/sj.emboj.7600289" @default.
- W2116991471 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/514949" @default.
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- W2116991471 hasPublicationYear "2004" @default.
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