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AAV-encoded expression of TRAIL in experimental human colorectal cancer leads to tumor regression

Mohr, A and Henderson, G and Dudus, L and Herr, I and Kuerschner, T and Debatin, KM and Weiher, H and Fisher, KJ and Zwacka, RM (2004) 'AAV-encoded expression of TRAIL in experimental human colorectal cancer leads to tumor regression.' Gene Therapy, 11 (6). 534 - 543. ISSN 0969-7128

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Abstract

Gene transfer vectors based on the adeno-associated virus (AAV) are used for various experimental and clinical therapeutic approaches. In the present study, we demonstrate the utility of rAAV as a tumoricidal agent in human colorectal cancer. We constructed an rAAV vector that expresses tumor necrosis factor (TNF)-related apoptosis-inducing figand (TRAIL/Apo2L) and used it to transduce human colorectal cancer cells. TRAIL belongs to the TNF superfamily of cytokines that are involved in various immune responses and apoptotic processes. It has been shown to induce cell death specifically in cancer cells. Transduction with AAV.TRAIL gave rise to rapid expression of TRAIL, followed by induction of apoptosis, which could be inhibited by the caspase inhibitor z-VAD.fmk, in several human colon cancer cell lines. The apoptotic mechanism included activation of caspase-3, as well as cytochrome c release from mitochondria. The outgrowth of human colorectal tumors grown in mice was completely blocked by transduction with AAV.TRAIL in vitro, while in vivo transduction significantly inhibited the growth of established tumors. AAV vectors could provide a safe method of gene delivery and offer a novel method of using TRAIL as a therapeutic protein. © 2004 Nature Publishing Group All rights reserved.

Item Type: Article
Subjects: R Medicine > RC Internal medicine > RC0254 Neoplasms. Tumors. Oncology (including Cancer)
Divisions: Faculty of Science and Health > Biological Sciences, School of
Depositing User: Jim Jamieson
Date Deposited: 29 Jun 2017 10:23
Last Modified: 17 Aug 2017 17:55
URI: http://repository.essex.ac.uk/id/eprint/8334

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