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Antisense Tcf inhibits the neoplastic growth of liver cancer cells.

Abstract：

PURPOSE:T cell transcription factors are nuclear effectors of the Wnt signaling transduction pathway and play crucial roles in embryonic and malignant development. Our previous study showed increased expression level of Tcf mRNA in liver cancer. In the present paper, antisense Tcf RNA was used to explore the possible therapeutic effect on liver cancer cells by interrupting the abnormal Wnt pathway. METHODS:Antisense expression vectors containing the conserved sequence of Tcf cDNA were constructed and transfected into a human liver cancer cell line SMMC-7721. Tumorigenic potential was determined by cellular growth assay and tumor growth in nude mice. RESULTS:The stable transfection of anti-sense Tcf in SMMC-7721 cells significantly reduced Tcf expression at both mRNA and protein levels compared with parental and mock-transfected cells. Antisense-mediated suppression of Tcf inhibited the in vitro proliferation and in vivo tumor formation ability. Furthermore, the apoptosis rate of antisense transfected cells was significantly higher than that of control, indicating that antisense RNA suppressed malignant growth by induction of apoptosis. CONCLUSION:Our studies demonstrate the critical role of Wnt signaling pathway in the neoplastic growth of liver cancer cells and suggest that inhibition of Tcf activity with antisense Tcf RNA may be a potential new gene therapy method for liver cancer.

journal_name

J Cancer Res Clin Oncol

journal_title

Journal of cancer research and clinical oncology

authors

Jiang Y,Zhou XD,Liu YK,Huang XW,Zhao Y,Xue Q,Sun RX,Chen J,Wu X

doi

10.1007/s00432-004-0580-9

subject

Has Abstract

pub_date

2004-11-01 00:00:00

pages

671-8

issue

11

eissn

0171-5216

issn

1432-1335

journal_volume

130

pub_type

杂志文章

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