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  • 1
    Publication Date: 2010-05-28
    Description: CD95 (also called Fas and APO-1) is a prototypical death receptor that regulates tissue homeostasis mainly in the immune system through the induction of apoptosis. During cancer progression CD95 is frequently downregulated or cells are rendered apoptosis resistant, raising the possibility that loss of CD95 is part of a mechanism for tumour evasion. However, complete loss of CD95 is rarely seen in human cancers and many cancer cells express large quantities of CD95 and are highly sensitive to CD95-mediated apoptosis in vitro. Furthermore, cancer patients frequently have elevated levels of the physiological ligand for CD95, CD95L. These data raise the possibility that CD95 could actually promote the growth of tumours through its non-apoptotic activities. Here we show that cancer cells in general, regardless of their CD95 apoptosis sensitivity, depend on constitutive activity of CD95, stimulated by cancer-produced CD95L, for optimal growth. Consistently, loss of CD95 in mouse models of ovarian cancer and liver cancer reduces cancer incidence as well as the size of the tumours. The tumorigenic activity of CD95 is mediated by a pathway involving JNK and Jun. These results demonstrate that CD95 has a growth-promoting role during tumorigenesis and indicate that efforts to inhibit its activity rather than to enhance it should be considered during cancer therapy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2879093/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2879093/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chen, Lina -- Park, Sun-Mi -- Tumanov, Alexei V -- Hau, Annika -- Sawada, Kenjiro -- Feig, Christine -- Turner, Jerrold R -- Fu, Yang-Xin -- Romero, Iris L -- Lengyel, Ernst -- Peter, Marcus E -- CA112240/CA/NCI NIH HHS/ -- K12 HD000849/HD/NICHD NIH HHS/ -- L30 CA153336/CA/NCI NIH HHS/ -- R01 CA095319/CA/NCI NIH HHS/ -- R01 CA11182/CA/NCI NIH HHS/ -- R01 CA112240/CA/NCI NIH HHS/ -- R01 CA112240-01A1/CA/NCI NIH HHS/ -- R01 CA112240-02/CA/NCI NIH HHS/ -- R01 CA112240-03/CA/NCI NIH HHS/ -- R01 CA112240-04/CA/NCI NIH HHS/ -- R01 CA112240-05/CA/NCI NIH HHS/ -- England -- Nature. 2010 May 27;465(7297):492-6. doi: 10.1038/nature09075.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Ben May Department for Cancer Research, The University of Chicago, 924 E 57th Street, Chicago, Illinois 60637, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20505730" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD95/deficiency/genetics/*metabolism ; Apoptosis ; Carcinoma, Endometrioid/metabolism/pathology ; Cell Line, Tumor ; Cell Proliferation ; Fas Ligand Protein/antagonists & inhibitors/immunology/metabolism ; Female ; Gene Expression Regulation, Neoplastic ; Hepatocytes/enzymology/metabolism/pathology ; Humans ; Liver Neoplasms/enzymology/metabolism/pathology ; Male ; Mice ; Mitogen-Activated Protein Kinase 8/deficiency/genetics/metabolism ; Neoplasms/*metabolism/*pathology ; Ovarian Neoplasms/metabolism/pathology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2009-05-23
    Description: Pancreatic ductal adenocarcinoma (PDA) is among the most lethal human cancers in part because it is insensitive to many chemotherapeutic drugs. Studying a mouse model of PDA that is refractory to the clinically used drug gemcitabine, we found that the tumors in this model were poorly perfused and poorly vascularized, properties that are shared with human PDA. We tested whether the delivery and efficacy of gemcitabine in the mice could be improved by coadministration of IPI-926, a drug that depletes tumor-associated stromal tissue by inhibition of the Hedgehog cellular signaling pathway. The combination therapy produced a transient increase in intratumoral vascular density and intratumoral concentration of gemcitabine, leading to transient stabilization of disease. Thus, inefficient drug delivery may be an important contributor to chemoresistance in pancreatic cancer.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2998180/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2998180/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Olive, Kenneth P -- Jacobetz, Michael A -- Davidson, Christian J -- Gopinathan, Aarthi -- McIntyre, Dominick -- Honess, Davina -- Madhu, Basetti -- Goldgraben, Mae A -- Caldwell, Meredith E -- Allard, David -- Frese, Kristopher K -- Denicola, Gina -- Feig, Christine -- Combs, Chelsea -- Winter, Stephen P -- Ireland-Zecchini, Heather -- Reichelt, Stefanie -- Howat, William J -- Chang, Alex -- Dhara, Mousumi -- Wang, Lifu -- Ruckert, Felix -- Grutzmann, Robert -- Pilarsky, Christian -- Izeradjene, Kamel -- Hingorani, Sunil R -- Huang, Pearl -- Davies, Susan E -- Plunkett, William -- Egorin, Merrill -- Hruban, Ralph H -- Whitebread, Nigel -- McGovern, Karen -- Adams, Julian -- Iacobuzio-Donahue, Christine -- Griffiths, John -- Tuveson, David A -- CA084291/CA/NCI NIH HHS/ -- CA101973/CA/NCI NIH HHS/ -- CA105490/CA/NCI NIH HHS/ -- CA111292/CA/NCI NIH HHS/ -- CA114028/CA/NCI NIH HHS/ -- CA15704/CA/NCI NIH HHS/ -- F32 CA123939/CA/NCI NIH HHS/ -- F32 CA123939-03X1/CA/NCI NIH HHS/ -- F32CA123887-01/CA/NCI NIH HHS/ -- F32CA123939-02/CA/NCI NIH HHS/ -- K08 CA106610/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2009 Jun 12;324(5933):1457-61. doi: 10.1126/science.1171362. Epub 2009 May 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, Cambridge CB2 ORE, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19460966" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antineoplastic Agents/*administration & dosage/metabolism/therapeutic use ; *Antineoplastic Combined Chemotherapy Protocols ; Apoptosis/drug effects ; Carcinoma, Pancreatic Ductal/blood supply/*drug therapy/metabolism/pathology ; Cell Line, Tumor ; Cell Proliferation/drug effects ; Deoxycytidine/administration & dosage/*analogs & ; derivatives/metabolism/therapeutic use ; Disease Models, Animal ; Drug Resistance, Neoplasm ; Hedgehog Proteins/antagonists & inhibitors/*metabolism ; Humans ; Kruppel-Like Transcription Factors/metabolism ; Mice ; Neoplasm Transplantation ; Neovascularization, Pathologic ; Pancreatic Neoplasms/blood supply/*drug therapy/metabolism/pathology ; Receptors, G-Protein-Coupled/antagonists & inhibitors/metabolism ; Signal Transduction/drug effects ; Stromal Cells/drug effects/pathology ; Veratrum Alkaloids/*administration & dosage/pharmacokinetics/therapeutic use
    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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  • 3
  • 4
    Publication Date: 2007-06-28
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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  • 5
    Publication Date: 2013-12-11
    Description: An autochthonous model of pancreatic ductal adenocarcinoma (PDA) permitted the analysis of why immunotherapy is ineffective in this human disease. Despite finding that PDA-bearing mice had cancer cell-specific CD8+ T cells, the mice, like human patients with PDA, did not respond to two immunological checkpoint antagonists that promote the function...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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