Source:http://linkedlifedata.com/resource/pubmed/id/18575746
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2008-6-25
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pubmed:abstractText |
Cell adhesion molecules have been implicated in the selective colonization of cancer in distant organs. Breast cancer has a strong predilection for spreading to bone. Cadherin-11, which is one of the classical type-2 cadherin family members and mediates homophilic cell-cell adhesion, is constitutively expressed in stromal and osteoblastic cells in bone marrow. Elevated cadherin-11 expression is also found in aggressive human breast cancers. Here, we investigated the role of the interactions between breast cancer cells and bone marrow stromal/osteoblastic cells via cadherin-11 in the selective spread to bone. The bone-seeking clone of the MDA-MB-231 human breast cancer cells showed greater cadherin-11 expression than the parental and the brain-seeking clone. Cadherin-11 overexpression in MDA-MB-231 cells increased bone metastases with promoted bone resorption, while the natural variant form of cadherin-11 that is unable to establish cell-cell adhesion did not. Of note, introduction of cadherin-11 showed no effects on lung metastases. Fluorescence-activated cell sorter analysis using the fluorescent dye-labeled cancer cells showed that early colonization in bone marrow was increased by cadherin-11. Co-cultures with the MC3T3-E1 osteoblastic cells that constitutively expressed cadherin-11 caused an up-regulation of parathyroid hormone-related protein (PTH-rP) production in MDA-MB-231 cells overexpressing cadherin-11. The conditioned medium of the co-cultures increased osteoclastogenesis, which was blocked by a neutralizing antibody to PTH-rP. In conclusion, our results suggest that cadherin-11 promotes homing and migration to bone and osteoclastogenesis through mediating the homophilic interactions of breast cancer cells with marrow stromal/osteoblastic cells, thereby enhancing bone metastases.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
1019-6439
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
33
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
17-24
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pubmed:meshHeading |
pubmed-meshheading:18575746-Animals,
pubmed-meshheading:18575746-Bone Marrow Cells,
pubmed-meshheading:18575746-Bone Neoplasms,
pubmed-meshheading:18575746-Breast Neoplasms,
pubmed-meshheading:18575746-Cadherins,
pubmed-meshheading:18575746-Cell Adhesion,
pubmed-meshheading:18575746-Cell Communication,
pubmed-meshheading:18575746-Cell Line, Tumor,
pubmed-meshheading:18575746-Cell Movement,
pubmed-meshheading:18575746-Female,
pubmed-meshheading:18575746-Humans,
pubmed-meshheading:18575746-Lung Neoplasms,
pubmed-meshheading:18575746-Mice,
pubmed-meshheading:18575746-NIH 3T3 Cells,
pubmed-meshheading:18575746-Osteoblasts,
pubmed-meshheading:18575746-Stromal Cells
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pubmed:year |
2008
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pubmed:articleTitle |
Cadherin-11-mediated interactions with bone marrow stromal/osteoblastic cells support selective colonization of breast cancer cells in bone.
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pubmed:affiliation |
Department of Biochemistry, Graduate School of Dentistry, Osaka University, Osaka 565-0871, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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