Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1994-7-12
pubmed:abstractText
The Wsh is a mutant allele at the W (c-kit) locus of mice, but no significant abnormalities are found at the coding region of the Wsh allele. Since cultured mast cells derived from the spleen of Wsh/Wsh mice do not express messenger RNA (mRNA) of c-kit, we studied the interrelation between the number of mast cells and the magnitude of c-kit mRNA expression in the skin of Wsh/Wsh mice of various ages. The number of mast cells in the skin of Wsh/Wsh embryos of 18 days postcoitum (pc) was approximately 40% that of normal control (+/+) embryos, but the number of mast cells decreased exponentially after birth; the number dropped to 0.6% that of +/+ mice at day 150 after birth. A weak but apparent signal of c-kit mRNA was detectable in the skin of 18-day pc Wsh/Wsh embryos by RNase protection assay but not in the skin of 5-day-old Wsh/Wsh mice. The number of c-kit protein-containing cells was significantly greater in the skin of 18-day pc Wsh/Wsh embryos than in the skin of 5-day-old Wsh/Wsh mice. The abolishment of c-kit mRNA expression appeared to be specific, because the expression of mast cell carboxypeptidase A mRNA but not of c-kit mRNA was detectable by in situ hybridization in skin mast cells of 5-day-old Wsh/Wsh mice. Taken together, the expression of c-kit mRNA was abolished first, then the content of c-kit protein dropped to undetectable levels, and then the disappearance of Wsh/Wsh mast cells themselves followed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
83
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3509-16
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:7515715-Age Factors, pubmed-meshheading:7515715-Animals, pubmed-meshheading:7515715-Animals, Newborn, pubmed-meshheading:7515715-Base Sequence, pubmed-meshheading:7515715-Female, pubmed-meshheading:7515715-Gene Expression Regulation, pubmed-meshheading:7515715-Mast Cells, pubmed-meshheading:7515715-Mice, pubmed-meshheading:7515715-Mice, Inbred C57BL, pubmed-meshheading:7515715-Molecular Sequence Data, pubmed-meshheading:7515715-Mutation, pubmed-meshheading:7515715-Pregnancy, pubmed-meshheading:7515715-Proto-Oncogene Proteins, pubmed-meshheading:7515715-Proto-Oncogene Proteins c-kit, pubmed-meshheading:7515715-Proto-Oncogenes, pubmed-meshheading:7515715-RNA, Messenger, pubmed-meshheading:7515715-Receptor Protein-Tyrosine Kinases, pubmed-meshheading:7515715-Receptors, Colony-Stimulating Factor, pubmed-meshheading:7515715-Skin
pubmed:year
1994
pubmed:articleTitle
C-kit gene is expressed by skin mast cells in embryos but not in puppies of Wsh/Wsh mice: age-dependent abolishment of c-kit gene expression.
pubmed:affiliation
Department of Pathology, Osaka University Medical School, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't