Isolation of HELAD1, a novel human helicase gene up-regulated in colorectal carcinomas.

Abstract:

:To investigate the mechanisms of colorectal carcinogenesis, we searched for genes regulated by adenomatous polyposis coli gene product (APC) and identified a novel gene, termed HELAD1 (helicase, APC down-regulated 1). A recombinant polypeptide representing the ATPases associated with cellular activities (AAA) domain of the HELAD1 product showed 3' to 5' helicase activity and exonuclease activity in vitro. HELAD1 was abundantly expressed in 16 of 20 colon cancers examined but hardly detectable in corresponding non-cancerous mucosae. Treatment of colon-cancer cells with antisense oligonucleotides suppressed its expression and induced apoptosis. These data revealed an importance of HELAD1 in colorectal carcinogenesis and suggest that suppression of HELAD1 may be a promising therapeutic strategy.

journal_name

Oncogene

journal_title

Oncogene

authors

Ishiguro H,Shimokawa T,Tsunoda T,Tanaka T,Fujii Y,Nakamura Y,Furukawa Y

doi

10.1038/sj.onc.1205751

subject

Has Abstract

pub_date

2002-09-12 00:00:00

pages

6387-94

issue

41

eissn

0950-9232

issn

1476-5594

journal_volume

21

pub_type

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