Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2009-8-21
pubmed:abstractText
Experimental autoimmune neuritis (EAN) is a helper T cell-mediated autoimmune demyelinating inflammatory disease of the peripheral nervous system and serves as the animal model for human inflammatory demyelinating polyneuropathies. Compound A, a plant-derived phenyl aziridine precursor, was reported to activate glucocorticoid receptors to exert transrepression but not transactivation properties. In this study, we investigated the effects of Compound A in EAN rats. Compound A greatly suppressed paraparesis in EAN, even when administrated after the appearance of the first neurological signs. Accumulation of macrophages and lymphocytes, demyelination, and mRNA levels of inflammatory molecules in sciatic nerves of EAN were greatly attenuated by Compound A. In addition, Compound A inhibited progression of neuropathic pain and repressed microglia but not astrocyte activation and IL-1beta and TNF-alpha up-regulation in EAN spinal cords. In EAN sciatic nerves, Compound A treatment increased numbers of anti-inflammatory M2 macrophages. Furthermore, Compound A induced the switch of macrophages from inflammatory M1 type to anti-inflammatory M2 type in vitro. In lymph nodes of EAN rats, Compound A depressed Th1 and Th17 cytokines, but increased Th2 cytokine and Foxp3 expression. An increase of Foxp3(+)/CD4(+) regulatory T cells was seen in peripheral blood of EAN rats following Compound A treatment. In addition, Compound A did not cause a hyperglycemia effect in EAN rats as compared with the immunosuppressive steroid prednisolone. Therefore, our data demonstrated that Compound A could effectively suppress EAN with reduced side effects by attenuating inflammation, suggesting that Compound A could be a potent candidate for treatment of autoimmune neuropathies.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1550-6606
pubmed:author
pubmed:issnType
Electronic
pubmed:day
1
pubmed:volume
183
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3081-91
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:19675162-Acetates, pubmed-meshheading:19675162-Animals, pubmed-meshheading:19675162-Anti-Inflammatory Agents, Non-Steroidal, pubmed-meshheading:19675162-Cell Line, Transformed, pubmed-meshheading:19675162-Cell Proliferation, pubmed-meshheading:19675162-Disease Progression, pubmed-meshheading:19675162-Down-Regulation, pubmed-meshheading:19675162-Ethylamines, pubmed-meshheading:19675162-Macrophages, pubmed-meshheading:19675162-Male, pubmed-meshheading:19675162-Mice, pubmed-meshheading:19675162-Neuritis, Autoimmune, Experimental, pubmed-meshheading:19675162-Rats, pubmed-meshheading:19675162-Receptors, Glucocorticoid, pubmed-meshheading:19675162-Salsola, pubmed-meshheading:19675162-T-Lymphocytes, Regulatory, pubmed-meshheading:19675162-Tyramine, pubmed-meshheading:19675162-Up-Regulation
pubmed:year
2009
pubmed:articleTitle
Compound A, a plant origin ligand of glucocorticoid receptors, increases regulatory T cells and M2 macrophages to attenuate experimental autoimmune neuritis with reduced side effects.
pubmed:affiliation
Institute of Brain Research, University of Tuebingen, Tuebingen, Germany. zhangzhiren@yahoo.com
pubmed:publicationType
Journal Article