期刊
MOLECULAR ONCOLOGY
卷 4, 期 4, 页码 347-356出版社
WILEY
DOI: 10.1016/j.molonc.2010.06.004
关键词
Cyclooxygenase; Luciferase; Knock-in mouse; Gene expression; Skin cancer; DMBA/TPA
类别
资金
- NIH [R01CA123055, R01CA084572]
Elevated cyclooxygenase-2 (COX-2) expression is observed in a variety of premalignant neoplastic tissues, suggesting COX-2 expression might serve as a potential indicator of subsequent tumor development. However, it has not been possible to compare the relationship between Cox-2 gene expression in premalignant lesions and their subsequent fate, because conventional studies require tissue destruction for analysis of gene expression. To monitor COX-2 expression non-invasively during tumor development, we created a Cox-2 luciferase knock-in mouse, Cox-2(luc), in which the firefly luciferase coding region replaces the Cox-2 coding region. Luciferase activity was non-invasively, quantitatively and repeatedly monitored in Cox-2(luc/+) mice subjected to DMBA/TPA multistage skin tumor induction. Luciferase activity is significantly higher in all papillomas than in surrounding skin. However, the magnitude of Cox-2 promoter-driven luciferase activity in small papillomas cannot predict subsequent papilloma regression or growth. Elevated Cox-2 promoter-driven luciferase signal can be detected when papillomas first become visible, but not before this time. (C) 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据