Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1999-7-15
pubmed:abstractText
The present study has analyzed the effect of progesterone and its derivatives (dihydroprogesterone and tetrahydroprogesterone) on the gene expression of the peripheral myelin protein 22 utilizing in vivo and in vitro models. The data obtained indicate that tetrahydroprogesterone is able to stimulate the gene expression of peripheral myelin protein 22 both in vivo (in adult but not in old animals) and in Schwann cell cultures. An effect of this steroid, which is known to interact with the GABA(A) receptor, would not be surprising, since in the present study we show the presence in Schwann cells and in the sciatic nerve of the messengers for several subunits (alpha2, alpha3, beta1, beta2, and beta3) of the GABA(A) receptor. An effect of tetrahydroprogesterone is also evident on the gene expression of another myelin protein, the peripheral myelin protein zero. However, in this case also dihydroprogesterone, which is able to bind the progesterone receptor, is involved, both in old and adult animals, in the stimulation of messengers levels of this myelin protein. In conclusion, the present data show that the gene expression of two important peripheral myelin proteins can be influenced by progesterone derivatives. The hypothesis has been put forward that part of their effects might occur not through the classical progesterone receptor, but rather via an interaction with the GABA(A) receptor.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0360-4012
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
56
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
349-57
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:10340743-20-alpha-Dihydroprogesterone, pubmed-meshheading:10340743-Aging, pubmed-meshheading:10340743-Animals, pubmed-meshheading:10340743-Blotting, Northern, pubmed-meshheading:10340743-Cells, Cultured, pubmed-meshheading:10340743-Gene Expression Regulation, pubmed-meshheading:10340743-Male, pubmed-meshheading:10340743-Myelin P0 Protein, pubmed-meshheading:10340743-Myelin Proteins, pubmed-meshheading:10340743-Pregnanolone, pubmed-meshheading:10340743-Progesterone, pubmed-meshheading:10340743-RNA, Messenger, pubmed-meshheading:10340743-Rats, pubmed-meshheading:10340743-Rats, Sprague-Dawley, pubmed-meshheading:10340743-Receptors, GABA-A, pubmed-meshheading:10340743-Receptors, Progesterone, pubmed-meshheading:10340743-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:10340743-Schwann Cells, pubmed-meshheading:10340743-Sciatic Nerve
pubmed:year
1999
pubmed:articleTitle
Progesterone derivatives are able to influence peripheral myelin protein 22 and P0 gene expression: possible mechanisms of action.
pubmed:affiliation
Department of Endocrinology, University of Milan, Italy. melcangi@imiucca.csi.unimi.it
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't