Source:http://linkedlifedata.com/resource/pubmed/id/12438268
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| Predicate | Object |
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| rdf:type | |
| lifeskim:mentions | |
| pubmed:dateCreated |
2002-11-19
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| pubmed:abstractText |
Although reduced levels of the epithelial cell adhesion molecule E-cadherin are often associated with poorly differentiated breast cancers, recent studies show that expression of other cadherins such as N-cadherin, P-cadherin, and the mesenchymal cadherin-11 is actually elevated in invasive breast cancers and cell lines. Cadherin-11 is unique among cadherins in that it exists as two alternatively spliced forms that are expressed together in the same cell. We now show that expression of wild-type cadherin-11, with or without coexpression of the COOH-terminal truncated splice variant, promotes epithelial differentiation of the cadherin-negative SKBR3 cell line. Exogenous wild-type cadherin-11 association with and membrane recruitment of beta-catenin and p120 are unaffected by coexpression of the truncated variant. Cadherin-11-expressing cells exhibit modest changes in cell proliferation and no change in anchorage-independent growth. However, coexpression of wild-type cadherin-11 and the splice variant promotes a dramatic increase in the ability of SKBR3 cells and E-cadherin-positive MCF7 cells to traverse Matrigel-coated filters. Biochemical studies indicate that the truncated variant may be secreted from the cell and/or enter a detergent-insoluble compartment. These data suggest that the presence of the cadherin-11 splice variant promotes invasion of cadherin-11-positive breast cancer cells.
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| pubmed:language |
eng
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| pubmed:citationSubset |
IM
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| pubmed:chemical | |
| pubmed:status |
MEDLINE
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| pubmed:author | |
| pubmed:owner |
NLM
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| pubmed:authorsComplete |
Y
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| pubmed:pagination |
6688-97
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| pubmed:dateRevised |
2006-11-15
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| pubmed:articleTitle |
An alternatively spliced cadherin-11 enhances human breast cancer cell invasion.
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| pubmed:affiliation |
Lombardi Cancer Research Center and Department of Oncology, Georgetown University School of Medicine, Washington, DC 20007, USA.
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