Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5-6
pubmed:dateCreated
2007-4-24
pubmed:abstractText
Voltage-dependent Ca(2+) channels (VDCC) exist in most excitable cells and their properly regulated activity is essential for critical biological processes as many of these are sensitive to cellular Ca(2+) ion concentration. The ancillary cytoplasmic Ca(2+) channel beta subunits (CACNB) modulate Ca(2+) channel function and are required to enhance the number of functional channels in the plasma membrane. There are four genes encoding CACNB subunits and the gene encoding CACNB3 is over expressed in hyperplastic placentas of mouse interspecies hybrids. To determine the role of CACNB3 in the mouse placenta, we performed an expression and function analysis. Our results show that Cacnb3 exhibits specific spatial and temporal expression in the mouse placenta. Deletion of Cacnb3 does not produce a strong placental phenotype, which may be due to expression of other CACNB subunit encoding genes; however, sporadic occurrence of a labyrinthine architecture phenotype, characterized by reduced density of fetal blood vessels and decrease in pericyte number, could be observed. Down-regulation of Cacnb3 expression did not rescue placental hyperplasia in a model of interspecies hybrid placentas, which indicates that up-regulation in the hyperplastic placentas is a downstream event.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0143-4004
pubmed:author
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
412-20
pubmed:dateRevised
2008-9-26
pubmed:meshHeading
pubmed:articleTitle
Expression and function of the gene encoding the voltage-dependent calcium channel beta3-subunit in the mouse placenta.
pubmed:affiliation
Department of Development and Genetics, Evolutionary Biology Center, Uppsala University, Norbyvägen 18A, SE-75236 Uppsala, Sweden.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't