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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2004-11-15
pubmed:abstractText
Alpha-melanocyte stimulating hormone (alpha-MSH) added to serum-free primary culture of melanoblasts derived from epidermal cell suspensions of 0.5 d old C57BL/10JHir mice induced their differentiation. Analysis using the reverse transcription-polymerase chain reaction showed that the expression of the melanocyte-specific alpha-MSH receptor gene, melanocortin receptor-1 (MC1-R), had already been initiated before addition of alpha-MSH, and, in addition, no up-regulation of the MC1-R gene was observed after addition of alpha-MSH. However, no expression of the proopiomelanocortin (POMC) gene was observed before or after the addition of alpha-MSH. The expression of the MC1-R and POMC genes in the epidermis and dermis of the dorsal skin was surveyed from 13 d old embryos to 5.5 d old neonates. The expression of the MC1-R gene was first observed in the epidermis of 13 d old embryos, and gradually increased up to 0.5 d after birth, and thereafter remained constant. By contrast, the expression of the MC1-R gene in the dermis was first observed in 16 d old embryos, and gradually increased up to 3.5 d after birth, and thereafter remained constant. However, no expression of the POMC gene was observed in the epidermis or dermis of the dorsal skin at any age of mice tested. These results suggest that the expression of the MC1-R gene, but not of the POMC gene, plays an important role in the regulation of melanocyte differentiation in mouse skin.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0893-5785
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
627-35
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
The melanocortin receptor-1 gene but not the proopiomelanocortin gene is expressed in melanoblasts and contributes their differentiation in the mouse skin.
pubmed:affiliation
Radiation Hazards Research Group, National Institute of Radiological Sciences, Anagawa, Inage-ku, Chiba, Japan. thirobe@nirs.go.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't