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  • 1
    Publication Date: 2010-11-06
    Description: The stromal microenvironment of tumors, which is a mixture of hematopoietic and mesenchymal cells, suppresses immune control of tumor growth. A stromal cell type that was first identified in human cancers expresses fibroblast activation protein-alpha (FAP). We created a transgenic mouse in which FAP-expressing cells can be ablated. Depletion of FAP-expressing cells, which made up only 2% of all tumor cells in established Lewis lung carcinomas, caused rapid hypoxic necrosis of both cancer and stromal cells in immunogenic tumors by a process involving interferon-gamma and tumor necrosis factor-alpha. Depleting FAP-expressing cells in a subcutaneous model of pancreatic ductal adenocarcinoma also permitted immunological control of growth. Therefore, FAP-expressing cells are a nonredundant, immune-suppressive component of the tumor microenvironment.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kraman, Matthew -- Bambrough, Paul J -- Arnold, James N -- Roberts, Edward W -- Magiera, Lukasz -- Jones, James O -- Gopinathan, Aarthi -- Tuveson, David A -- Fearon, Douglas T -- Cancer Research UK/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2010 Nov 5;330(6005):827-30. doi: 10.1126/science.1195300.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Wellcome Trust Immunology Unit, Department of Medicine, University of Cambridge, Medical Research Council Centre, Hills Road, Cambridge CB2 2QH, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Neoplasm/immunology ; Cancer Vaccines/administration & dosage/immunology ; Carcinoma, Lewis Lung/*immunology/pathology/therapy ; Carcinoma, Pancreatic Ductal/*immunology/pathology ; Cell Hypoxia ; Cell Line, Tumor ; Cell Survival ; Gelatinases/*metabolism ; *Immune Tolerance ; Interferon-gamma/immunology/metabolism ; Membrane Proteins/*metabolism ; Mice ; Mice, Transgenic ; Necrosis ; Neoplasm Transplantation ; Serine Endopeptidases/*metabolism ; Stromal Cells/*immunology/metabolism ; Tumor Microenvironment/*immunology ; Tumor Necrosis Factor-alpha/immunology/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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