CTS1: A p53-derived chimeric tumor suppressor gene with enhanced in vitro apoptotic properties

被引:28
作者
Conseiller, E [1 ]
Debussche, L [1 ]
Landais, D [1 ]
Venot, C [1 ]
Maratrat, M [1 ]
Sierra, V [1 ]
Tocque, B [1 ]
Bracco, L [1 ]
机构
[1] Rhone Poulenc Rorer SA, Gene Med Dept, F-94403 Vitry Sur Seine, France
关键词
p53; mdm2; apoptosis; cancer; gene therapy;
D O I
10.1172/JCI1140
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
The clinical potential of the p53 tumor suppressor gene is being evaluated currently for gene therapy of cancer. We have built a variant of wild-type p53, chimeric tumor suppressor 1 (CTS1), in which we have replaced the domains that mediate its inactivation. CTS1 presents some very interesting properties: (a) enhanced transcriptional activity; (b) resistance to the inactivation by oncogenic forms of p53; (c) resistance to the inactivation by MDM2; (d) lower sensitivity to E6-induced degradation; (e) ability to suppress cell growth; and (f) faster induction of apoptosis. Thus, CTS1 is an improved tumor suppressor and an alternative for the treatment of wild-type p53-resistant human tumors by gene therapy.
引用
收藏
页码:120 / 127
页数:8
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