Linked Life Data

7629252

Source:http://linkedlifedata.com/resource/pubmed/id/7629252

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1995-9-7
pubmed:abstractText
This report describes skeletal site-related differences in human osteoblastic cell metabolism in studies of four patients. Northern analyses of the constitutive growth factor messenger ribonucleic acid (mRNA) expression pattern in mandibular and iliac crest-derived human osteoblastic cells (based on within-patient comparisons) revealed higher mRNA levels for strong mitogenic growth factors such as basic fibroblast growth factor (bFGF) and insulin-like growth factor II (IGF-II) in the rapidly proliferating and less alkaline phosphatase (ALP)-expressing mandibular osteoblastic cells compared to those in the lower bFGF and IGF-II mRNA levels in slowly proliferating iliac human osteoblastic cells exhibiting a higher ALP expression level. In contrast, transforming growth factor-beta (TGF beta) mRNA was more abundant in iliac human osteoblastic cells than in mandibular osteoblastic cells. Furthermore, we found that there was a proportionality, based on data from both sites, between the level of constitutive TGF beta mRNA and the response to exogenously administered bFGF or IGF-II. A comparable pattern of growth characteristics and mRNA expression was also observed in transformed human osteoblastic cells that had been subcloned in sublines expressing high and low levels of the human osteoblastic differentiation marker ALP. These findings are consistent with 1) skeletal site-related differences in human bone cell phenotypes, and 2) decreased IGF-II and bFGF expression and increased TGF beta expression and responsiveness to bFGF and IGF-II in human bone cells exhibiting a high ALP expression.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0021-972X
pubmed:author
pubmed:issnType
Print
pubmed:volume
80
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2511-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:7629252-Alkaline Phosphatase, pubmed-meshheading:7629252-Blotting, Northern, pubmed-meshheading:7629252-Bone and Bones, pubmed-meshheading:7629252-Cell Division, pubmed-meshheading:7629252-Cell Line, pubmed-meshheading:7629252-Cells, Cultured, pubmed-meshheading:7629252-DNA, pubmed-meshheading:7629252-Fibroblast Growth Factor 2, pubmed-meshheading:7629252-Fibroblasts, pubmed-meshheading:7629252-Gene Expression, pubmed-meshheading:7629252-Growth Substances, pubmed-meshheading:7629252-Humans, pubmed-meshheading:7629252-Ilium, pubmed-meshheading:7629252-Insulin-Like Growth Factor II, pubmed-meshheading:7629252-Kinetics, pubmed-meshheading:7629252-Mandible, pubmed-meshheading:7629252-Osteoblasts, pubmed-meshheading:7629252-Osteocalcin, pubmed-meshheading:7629252-Osteosarcoma, pubmed-meshheading:7629252-RNA, Messenger, pubmed-meshheading:7629252-Skin, pubmed-meshheading:7629252-Thymidine, pubmed-meshheading:7629252-Transforming Growth Factor beta, pubmed-meshheading:7629252-Tumor Cells, Cultured
pubmed:year
1995
pubmed:articleTitle
Human bone cell phenotypes differ depending on their skeletal site of origin.
pubmed:affiliation
Department of Medicine, Ruprecht-Karls-University of Heidelberg, Germany.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't