Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
|
pubmed:dateCreated |
1992-10-13
|
pubmed:abstractText |
Mutations at the white spotting (w) locus in mice have deleterious effects on germ cells, melanocytes and hematopoietic stem cells. The w locus encodes the c-kit tyrosine-kinase receptor whose ligand is the product of the SI locus. Using monoclonal antibodies (MAb(s)) to the extracellular domain, we have evaluated the expression of c-kit in normal and transformed melanocytes. This cell lineage synthesizes a receptor with a mw of 145 kDa. The gene product is expressed in epidermal melanocytes and in a fraction of nevocytic and blue nevi. In primary melanomas, loss of the receptor is observed in more invasive lesions. Only 30% of the metastatic lesions express detectable levels of the receptor. These findings demonstrate that the c-kit product is down-regulated in melanocytes following malignant transformation. The functional relevance of this modulation remains to be evaluated.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Antibodies, Monoclonal,
http://linkedlifedata.com/resource/pubmed/chemical/Proto-Oncogene Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Proto-Oncogene Proteins c-kit,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Cell Surface
|
pubmed:status |
MEDLINE
|
pubmed:month |
Sep
|
pubmed:issn |
0020-7136
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
9
|
pubmed:volume |
52
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
197-201
|
pubmed:dateRevised |
2009-11-19
|
pubmed:meshHeading |
pubmed-meshheading:1381702-Antibodies, Monoclonal,
pubmed-meshheading:1381702-Gene Expression Regulation, Neoplastic,
pubmed-meshheading:1381702-Humans,
pubmed-meshheading:1381702-Melanocytes,
pubmed-meshheading:1381702-Melanoma,
pubmed-meshheading:1381702-Proto-Oncogene Proteins,
pubmed-meshheading:1381702-Proto-Oncogene Proteins c-kit,
pubmed-meshheading:1381702-Receptors, Cell Surface,
pubmed-meshheading:1381702-Skin Neoplasms
|
pubmed:year |
1992
|
pubmed:articleTitle |
Progression of human cutaneous melanoma is associated with loss of expression of c-kit proto-oncogene receptor.
|
pubmed:affiliation |
Regina Elena Cancer Institute, Rome, Italy.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|