Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1996-7-15
pubmed:abstractText
In this study, we examined the endothelin (ET) receptor subtype involved in mitogenic signaling in human primary and metastatic melanoma cell lines. In a reverse transcriptase-polymerase chain reaction (RT-PCR) study, ET(B) mRNA expression in metastatic melanoma cells was decreased from that of primary melanoma. Only RPM-EP, a primary recurrent melanoma cell line, showed strong ET(A) mRNA expression. ET-1 and ET-3 stimulated DNA synthesis of primary and recurrent cutaneous melanoma cells in serum-deprived cultures. The growth response to ET-1 in metastatic melanoma cells was decreased from that in primary melanoma cells. [125I]-IRL-1620 binding to PM-WK, a primary melanoma cell line, was significantly blocked by excessive amounts of unlabeled BQ-788. [125I]-IRL-1620 binding to metastatic melanoma cells was significantly decreased from that of primary melanoma cells. From these results, we conclude that the mitogenic effects of ET in human primary melanoma are mainly mediated through ET(B) receptors and that down-regulation of ET(B) receptors causes the decreased growth response of ET-1 in metastatic melanoma cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
27
pubmed:volume
219
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
734-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:8645250-Amino Acid Sequence, pubmed-meshheading:8645250-Cell Line, pubmed-meshheading:8645250-DNA, Neoplasm, pubmed-meshheading:8645250-Endothelins, pubmed-meshheading:8645250-Gene Expression, pubmed-meshheading:8645250-Humans, pubmed-meshheading:8645250-Kinetics, pubmed-meshheading:8645250-Melanoma, pubmed-meshheading:8645250-Molecular Sequence Data, pubmed-meshheading:8645250-Neoplasm Metastasis, pubmed-meshheading:8645250-Peptide Fragments, pubmed-meshheading:8645250-Polymerase Chain Reaction, pubmed-meshheading:8645250-RNA, Messenger, pubmed-meshheading:8645250-Receptor, Endothelin A, pubmed-meshheading:8645250-Receptor, Endothelin B, pubmed-meshheading:8645250-Receptors, Endothelin, pubmed-meshheading:8645250-Skin Neoplasms, pubmed-meshheading:8645250-Thymidine, pubmed-meshheading:8645250-Tumor Cells, Cultured
pubmed:year
1996
pubmed:articleTitle
Decreased ET(B) receptor expression in human metastatic melanoma cells.
pubmed:affiliation
Department of Dermatology, Tokyo University Branch Hospital, Japan.
pubmed:publicationType
Journal Article, Comparative Study