RNA interference targeting the R2 subunit of ribonucleotide reductase inhibits growth of tumor cells in vitro and in vivo.

Abstract:

:RNA interference, a posttranscriptional gene-silencing mechanism, has received considerable attention for its potential as a new therapeutic strategy to treat human diseases and conditions including cancer. Various studies have supported a role for the R2 subunit of ribonucleotide reductase in cancer progression and metastasis. Short interfering siRNA 1284 was designed to target R2. In vitro studies, in which three different human tumor cell lines (A498, HT-29 and A2058) were transfected with short interfering siRNA 1284, demonstrate sequence-specific down-regulation of R2, which coincides with a decrease in cell proliferation, and cell cycle inhibition. In vivo studies with xenograft mouse models, generated from the same tumor cell lines, indicate that treatment with short interfering siRNA 1284 leads to inhibition of tumor growth and this effect was found to be dose dependent. Taken together, these results suggest that short interfering siRNA 1284, targeting R2, has great potential to serve as a therapeutic agent towards the treatment of human cancers.

journal_name

Anticancer Drugs

journal_title

Anti-cancer drugs

authors

Avolio TM,Lee Y,Feng N,Xiong K,Jin H,Wang M,Vassilakos A,Wright J,Young A

doi

10.1097/CAD.0b013e328013c04f

subject

Has Abstract

pub_date

2007-04-01 00:00:00

pages

377-88

issue

4

eissn

0959-4973

issn

1473-5741

pii

00001813-200704000-00003

journal_volume

18

pub_type

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