Document Detail

Opioid peptides and opiate alkaloids in immunoregulatory processes.
MedLine Citation:
PMID:  22371785     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Among the various non-neuronal cell types known to express and utilize neuropeptides, those of the immune system have received much attention in recent years. In particular, comparative studies in vertebrates and invertebrates have shown that endogenous opioid peptides are engaged in receptor mediated autoregulatory immune and neuroendocrine processes. The majority of these immune processes are stimulatory, as determined by their effects on conformational changes indicative of immunocyte activation, cellular motility, and phagocytosis. Endogenous opioid peptides form an effective network of messenger molecules in cooperation with cytokines, opiate alkaloids, and certain regulatory enzymes (neutral endopeptidase 24.11). Peptide-mediated immunostimulatory effects observed in this system are operationally counteracted by the inhibitory effects of morphine and related opiates. Opioid/opiate signaling processes are mediated by several types of receptors with different degrees of selectivity. Among them the recently identified, opioid insensitive µ(3) receptor deserves attention on account of its specificity for opiate alkaloids.
George B Stefano; Richard M Kream
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of medical science : AMS     Volume:  6     ISSN:  1896-9151     ISO Abbreviation:  Arch Med Sci     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2012-02-28     Completed Date:  2012-10-02     Revised Date:  2013-05-29    
Medline Journal Info:
Nlm Unique ID:  101258257     Medline TA:  Arch Med Sci     Country:  Poland    
Other Details:
Languages:  eng     Pagination:  456-60     Citation Subset:  -    
Neuroscience Research Institute, State University of New York, College at Old Westbury, Old Westbury, USA.
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