Affordable Access

L1, a novel target of β-catenin signaling, transforms cells and is expressed at the invasive front of colon cancers

Authors
Journal
The Journal of Cell Biology
0021-9525
Publisher
The Rockefeller University Press
Publication Date
Volume
168
Issue
4
Identifiers
DOI: 10.1083/jcb.200408051
Keywords
  • Research Articles
  • Article
Disciplines
  • Medicine

Abstract

Aberrant β-catenin-TCF target gene activation plays a key role in colorectal cancer, both in the initiation stage and during invasion and metastasis. We identified the neuronal cell adhesion molecule L1, as a target gene of β-catenin-TCF signaling in colorectal cancer cells. L1 expression was high in sparse cultures and coregulated with ADAM10, a metalloprotease involved in cleaving and shedding L1's extracellular domain. L1 expression conferred increased cell motility, growth in low serum, transformation and tumorigenesis, whereas its suppression in colon cancer cells decreased motility. L1 was exclusively localized in the invasive front of human colorectal tumors together with ADAM10. The transmembrane localization and shedding of L1 by metalloproteases could be useful for detection and as target for colon cancer therapy.

There are no comments yet on this publication. Be the first to share your thoughts.