Abstract:
:Fes is a protein tyrosine kinase with cell autonomous oncogenic activities that are well established in cell culture and animal models, but its involvement in human cancer has been unclear. Abundant expression of Fes in vascular endothelial cells and myeloid cell lineages prompted us to explore roles for Fes in the tumor microenvironment. In an orthotopic mouse model of breast cancer, we found that loss of Fes in the host correlated with reductions in engrafted tumor growth rates, metastasis, and circulating tumor cells. The tumor microenvironment in Fes-deficient mice also showed reduced vascularity and fewer macrophages. In co-culture with tumor cells, Fes-deficient macrophages also poorly promoted tumor cell invasive behavior. Taken together, our observations argue that Fes inhibition might provide therapeutic benefits in breast cancer, in part by attenuating tumor-associated angiogenesis and the metastasis-promoting functions of tumor-associated macrophages.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Zhang S,Chitu V,Stanley ER,Elliott BE,Greer PAdoi
10.1158/0008-5472.CAN-10-3757subject
Has Abstractpub_date
2011-02-15 00:00:00pages
1465-73issue
4eissn
0008-5472issn
1538-7445pii
0008-5472.CAN-10-3757journal_volume
71pub_type
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