Abstract:
:WNT signaling pathway plays a key role in carcinogenesis and embryogenesis. We have cloned and characterized the human WNT5B. Overlapping WNT5B cDNAs, containing 1080-bp ORF, were isolated. WNT5B encoded a 359-amino-acid polypeptide with the N-terminal signal peptide, four N-linked glycosylation sites, and consensus amino-acid residues conserved among the WNT family. WNT5B showed 80.5% total-amino-acid identity with WNT5A. Comparison between nucleotide sequence of WNT5B cDNA and human genome draft sequences revealed that the WNT5B gene, consisting of 4 exons, was located on human chromosome 12p13.3 region. Northern blot analyses with W5B2 probe detected the 2.8- and 2.4-kb WNT5B mRNAs. WNT5B was moderately expressed in adult prostate and fetal brain, and weakly expressed in fetal lung, kidney, adult liver, ovary, and small intestine. Among human cancer cell lines, WNT5B was expressed in gastric cancer cell lines MKN7, MKN45, KATO-III, and a teratocarcinoma cell line NT2. WNT5B might be implicated in human carcinogenesis through activation of the WNT-beta-catenin-TCF signaling pathway, just like Wnt5a.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Saitoh T,Katoh Mdoi
10.3892/ijo.19.2.347keywords:
subject
Has Abstractpub_date
2001-08-01 00:00:00pages
347-51issue
2eissn
1019-6439issn
1791-2423journal_volume
19pub_type
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