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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2008-7-28
pubmed:abstractText
Although the neuropeptide Y (NPY) family has been demonstrated to control bone metabolism, the role of pancreatic polypeptide (PP), which has structural homology with NPY and peptide YY (PYY) to share the NPY family receptors, in peripheral bone tissues has remained unknown. In the present study, we studied the regulatory roles of PP and its Y receptors using MC3T3-E1 cells, a murine transformed osteoblastic cell line, as a model for osteoblastic differentiation. We found that (1) PP mRNA was detected and increased during cell-contact-induced differentiation in MC3T3-E1 cells; (2) the immunoreactivity of PP was detected by radioimmunoassay and increased in culture medium during differentiation; (3) all the types of NPY family receptor mRNAs (Y1, Y2, Y4, Y5, and y6) were found to increase during differentiation; (4) PP stimulated differentiation in MC3T3-E1 cells in terms of ALP mRNA and BMP-2 mRNA. These findings suggested that MC3T3-E1 cells produce and secrete PP, which may in turn stimulate the differentiation of MC3T3-E1 through its specific receptors in an autocrine manner.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0196-9781
pubmed:author
pubmed:issnType
Print
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1390-5
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Pancreatic polypeptide is secreted from and controls differentiation through its specific receptors in osteoblastic MC3T3-E1 cells.
pubmed:affiliation
Department of Clinical Cell Biology, Graduate School of Medicine, Chiba University, Chiba, Japan.
pubmed:publicationType
Journal Article