Linked Life Data

21111488

Source:http://linkedlifedata.com/resource/pubmed/id/21111488

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2011-3-9
pubmed:abstractText
Multiple sclerosis (MS) plaques are characterized by neurodegeneration, astrogliolis, the presence of immature oligodendrocytes and infiltrating immune cells. Recent studies revealed a putative role for noggin in both neurogenesis and oligodenrocytes development. In order to study the potential of peripheral immune cells to contribute to neurogenesis in MS, we studied the mRNA expression, protein secretion and regulation profile of noggin in peripheral blood mononuclear cells (PBMCs) of untreated patients with relapsing-remitting MS (RR-MS), interferon-? (IFN-?) treated RR-MS patients compared to matched healthy controls (HC). Basal levels of noggin mRNA expression, determined by quantitative real-time PCR were lower in untreated patients than in HC. No differences were found between untreated patients and IFN-? treated patients. Similarly, the secreted levels of noggin, detected in 24h PBMCs supernatants by ELISA, were decreased in untreated RR-MS patients than in HC. Again no significant differences were found between untreated patients and IFN-? treated patients. Stimulation with anti-CD3/CD28 mAbs increased noggin mRNA expression in untreated patients but not in HC. However, noggin mRNA levels in untreated patients PBMCs stimulated with anti-CD3/CD28 did not reach noggin levels in unstimulated PBMCs of HC. Purification of monocytes (CD14+) and T cells (CD3+ cells) by magnet-activated cell separation has demonstrated that noggin mRNA is predominantly expressed in CD3(+) cells in both HC and in RR-MS patients. This pattern also appeared in protein level of noggin, tested by Western blot. The incubation of the PBMCs with TNF-? increased the expression of noggin only in HC group. In conclusion, T cells possess the potential to participate in the induction of neurogeneration by the production of noggin. This potential seems to be defective in immune cells of RR-MS patients as there is reduced mRNA expression and protein secretion levels of noggin, insufficient stimulatory effect of CD3/CD28 stimulation and unresponsiveness to TNF-? in these patients PBMCs.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1872-8421
pubmed:author
pubmed:copyrightInfo
Copyright © 2010 Elsevier B.V. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
232
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
171-8
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Reduced production of noggin by immune cells of patients with relapsing-remitting multiple sclerosis.
pubmed:affiliation
Neuroimmunology Laboratory and clinic, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
pubmed:publicationType
Journal Article