{"id":453,"date":"2015-09-15T16:39:27","date_gmt":"2015-09-15T23:39:27","guid":{"rendered":"https:\/\/keck.usc.edu\/news\/researchers-mimic-viral-infection-in-colon-cancer-stem-cells\/"},"modified":"2023-11-26T08:16:42","modified_gmt":"2023-11-26T16:16:42","slug":"researchers-mimic-viral-infection-in-colon-cancer-stem-cells","status":"publish","type":"post","link":"https:\/\/keck.usc.edu\/news\/researchers-mimic-viral-infection-in-colon-cancer-stem-cells\/","title":{"rendered":"Researchers mimic viral infection in colon cancer stem cells"},"content":{"rendered":"\n \n \n\n\n\n\n\n\n\n
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\n\n \n Press Release<\/span>\n\n\n\n<\/div>\n \n \n
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Researchers mimic viral infection in colon cancer stem cells<\/h1>\n\n\n<\/div>\n \n \n
\n \n September 15, 2015<\/span>\n <\/div>\n \n \n
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Researchers targeting colorectal cancer stem cells \u2014 the root cause of disease, resistance to treatment and relapse \u2014 have discovered a mechanism to mimic a virus and potentially trigger an immune response to fight the cancer like an infection.<\/p>\n

The discovery, published in\u00a0Cell<\/em>, illuminates a major shift in the understanding of anti-tumor mechanisms and identifies a promising target against colorectal cancer stem cells, said principal investigator and lead author Daniel De Carvalho, a former postdoctoral research fellow at\u00a0USC Norris Comprehensive Cancer Center\u00a0who now works at Princess Margaret Cancer Centre, University Health Network in Toronto, Canada.<\/p>\n

\u201cBy mimicking a virus, the potential is to trick the immune system into \u2018seeing\u2019 the cancer cells as an infection that needs to be destroyed,\u201d De Carvalho said. \u201cOur work demonstrates that viral mimicry is a viable anti-tumor strategy.\u201d<\/p>\n

Among those contributing to the research and its publication were\u00a0Gangning Liang, MD, PhD, and\u00a0Peter A. Jones, PhD, DSc, of the Catherine and Joseph Aresty Department of Urology at the Keck School of Medicine of USC.<\/p>\n

Currently, colorectal cancer recurs in about 50 percent of patients and is among the Top 3 leading causes of cancer-related deaths.<\/p>\n

In the laboratory, the research team replicated human colorectal cancer in preclinical experiments and used bioinformatics analysis to demonstrate that a low-dose of the chemotherapy drug decitabine targeted the cancer stem cells by inducing viral mimicry.<\/p>\n

Decitabine is approved by the U.S. Food and Drug Administration to treat myelodysplastic syndromes and leukemia, and for use in clinical trials for several types of solid-tumor cancers including colorectal. The team discovered that this drug \u2013 known as an epigenetic therapy because it chemically modifies DNA \u2013 activates a pathway that recognizes viruses.<\/p>\n

\u201cWe have found a switch to turn on an anti-viral response in colorectal cancer stem cells, which seem to be especially sensitive to it,\u201d De Carvalho said.<\/p>\n

\u201cAnother important implication of our finding is that since decitabine induces an anti-viral response, which is highly immunogenic, it may be useful to combine this agent with immune therapy to further advance personalized cancer medicine by boosting an individual\u2019s natural defenses to fight disease. The next step is to start clinical trials to find out if targeting colon cancer stem cells in this way will result in durable cures,\u201d De Carvalho said.<\/p>\n

The research was funded by the Cancer Research Society, Stand Up to Cancer (Epigenetics Dream Team) and the Princess Margaret Cancer Foundation.<\/p>\n\n\n\n<\/div>\n <\/div>\n\n\n <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":168,"featured_media":454,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[6],"tags":[10,57,20,17,99],"class_list":["post-453","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-press-release","tag-cancer","tag-recent","tag-research","tag-stem-cell","tag-urology"],"acf":[],"yoast_head":"\nResearchers mimic viral infection in colon cancer stem cells<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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