Linked Life Data

1385472

Source:http://linkedlifedata.com/resource/pubmed/id/1385472

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
1992-12-1
pubmed:abstractText
Remyelination can be studied in aggregating rat brain cell cultures after limited demyelination. Demyelination was induced using a monoclonal antibody against myelin/oligodendrocyte glycoprotein (MOG mAb), in the presence of complement. De- and remyelination were assessed by measuring myelin basic protein (MBP). Two days after removing the MOG mAb, MBP levels reached 50% of controls and after 7 days 93%. During this period, cell proliferation determined by [14C]thymidine incorporation was similar in remyelinating and control cultures. Hormones and growth factors were tested for possible stimulatory effect on remyelinating cultures. Bovine growth hormone (bGH), triiodothyronine (T3), basic fibroblast growth factor (bFGF) and platelet-derived growth factor (PDGF) did not improve remyelination. Only epidermal growth factor (EGF) increased the level of remyelination. PDGF increased the rate of cell proliferation in both control and remyelinating cultures. A significant proportion of oligodendrocytes entered the cell division cycle and were not available for remyelination. The results obtained with PDGF and FGF (inhibition) support the idea that a pool of progenitor cells was still present and able to proliferate and differentiate into myelinating oligodendrocytes. The levels of myelin protein mRNAs were investigated during de- and remyelination. During demyelination, myelin protein mRNA levels decreased to approximately 50% of control cultures and returned to normal during remyelination. These preliminary results indicate that normal levels of gene transcription are sufficient to meet the increased need for newly synthesized myelin proteins during remyelination.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0165-5728
pubmed:author
pubmed:issnType
Print
pubmed:volume
40
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
231-4
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Myelin gene expression during demyelination and remyelination in aggregating brain cell cultures.
pubmed:affiliation
Laboratoire de neurochimie, Centre hospitalier universitaire vaudois, Lausanne, Switzerland.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't