Linked Life Data

10562439

Source:http://linkedlifedata.com/resource/pubmed/id/10562439

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2000-4-4
pubmed:abstractText
Adipocytes and osteoblasts have common origins from fibroblastic stem cells. Consequently, modulation of the processes of adipogenesis and osteogenesis has implications for the possible treatment of metabolic bone diseases, such as osteoporosis, in which medullary fat accumulates and trabecular bone volume decreases. It is likely that the balance between these two systems is affected by particular endogenous growth factors which are known to affect bone metabolism. We have therefore investigated the effects of transforming growth factor beta (TGFbeta), basic fibroblast growth factor (bFGF) and dexamethasone (Dex) on cultured human bone marrow (HBM) fibroblastic cells to observe the effects on adipogenesis and osteogenesis. In the absence of fetal calf serum (FCS), TGFbeta caused a dose-dependent increase in cell growth and alkaline phosphatase activity (AP); however, in the presence of FCS growth was inhibited at high concentrations and AP unaffected. TGFbeta increased matrix proteoglycan and collagen synthesis. bFGF inhibited AP and increased colony number and size, while Dex treatment increased AP activity and colony number, and both factors in combination resulted in an additive increase in growth. Dex-induced adipocyte formation was accelerated but not increased by bFGF. A significant inhibition of adipogenesis by TGFbeta was observed within 7 days. These results demonstrate the importance of biological factors known to be involved in bone remodelling in the regulation of osteogenesis and adipogenesis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1065-6995
pubmed:author
pubmed:copyrightInfo
Copyright 1999 Academic Press.
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
185-94
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Effects of TGFbeta and bFGF on the differentiation of human bone marrow stromal fibroblasts.
pubmed:affiliation
MRC Bone Research Laboratory, Nuffield Department of Orthopaedic Surgery, University of Oxford, Oxford, OX3 7LD, U.K.
pubmed:publicationType
Journal Article