Journal
CANCER LETTERS
Volume 229, Issue 1, Pages 107-114Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.canlet.2004.12.032
Keywords
hepatocellular carcinoma; SV40 large T antigen; transgenic; Cre recombinase; tamoxifen
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We closely mimicked the in vivo setting in which sporadic hepatocarcinoma occurs by establishing a transgenic mouse model carrying regulatable SV40 early sequences under the control of the regulatory sequences of the human antithrombin III gene that confer hepatic expression. In this system, floxed dormant oncogenic sequences became functional after excision due to adenoviral expression of Cre recombinase or the stable transgenic expression in liver of a tamoxifen-inducible Cre. Hepatic oncogene expression was switched on by both methods, leading to the development of hepatocellular carcinoma. This model could be useful for investigating the key steps of the preneoplastic process, to identify suitable targets for the testing of new therapies. (C) 2005 Elsevier Ireland Ltd. All rights reserved.
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