Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2011-8-15
pubmed:abstractText
Spleen tyrosine kinase (Syk) is a non-receptor protein kinase present in abundance in a wide range of hematopoietic cells. Syk reportedly plays a crucial role in immune signaling in B cells and cells bearing Fc?-activation receptors. The role of syk in osteoblastic differentiation has not been well elucidated. We report herein the role of syk in osteoblastic differentiation. We investigated the effects of two syk inhibitors on osteoblastic differentiation in mouse preosteoblastic MC3T3-E1 cells and bone marrow stromal ST2 cells. Expression of syk was detected in these two cell lines. Two syk inhibitors stimulated mRNA expression of osteoblastic markers (ALP, Runx2, Osterix). Mineralization of extracellular matrix was also promoted by treatment with syk inhibitors. Knockdown of Syk caused increased mRNA expression of osteoblastic markers. In addition, syk inhibitor and knockdown of Syk suppressed phosphorylation of mitogen-activated protein kinase (MAPK) and protein kinase C? (PKC?). Our results indicate that syk might regulate osteoblastic differentiation through MAPK and PKC?.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1090-2104
pubmed:author
pubmed:copyrightInfo
Copyright © 2011 Elsevier Inc. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
12
pubmed:volume
411
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
774-9
pubmed:dateRevised
2011-11-2
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Spleen tyrosine kinase suppresses osteoblastic differentiation through MAPK and PKC?.
pubmed:affiliation
Department of Orthopaedic Surgery, Graduate School of Medicine, Osaka University, Suita, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't