Document Detail


On the interaction between macrophages and developmental stages of Schistosoma mansoni: effect of muramyl tripeptide phosphatidyl ethanolamine (MTP-PE) treatment on mice survival and the generation of schistosomulicidal macrophages.
MedLine Citation:
PMID:  1437229     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Schistosomiasis is a chronic disease afflicting hundreds of millions of people throughout the world against which there is as yet no effective vaccine. In the present study we tested the effect of the immunomodulator muramyl tripeptide phosphatidyl ethanolamine (MTP-PE) on the survival of Schistosoma mansoni-infected mice and on the induction in them of schistosomulicidal macrophages. Mice exposed to 80 cercariae each and then treated with MTP-PE showed prolonged survival following either single or repeat infection. The treatment with MTP-PE, when initiated 70 days post the schistosome infection, diminished significantly the mortality of infected mice over an observed period of 110 days. In terms of treatment efficacy there was no evident difference between the intravenous and intraperitoneal mode of administration of the drug. MTP-PE treatment significantly reduced granuloma size and markedly diminished liver damaged as judged by the lower levels of alkaline phosphatase in the serum. Such treatment exerted no significant effect on the spleen or liver weight in infected mice nor on the worm burden resulting from either a single or double infection. In infected and non-treated mice, schistosomulicidal macrophages appeared after 8-10 weeks of infection. In infected mice treated with MTP-PE there was an accelerated appearance of such macrophages and these exhibited a greater cidal effect on the schistosomula. These immunostimulatory and life-prolonging effects of MTP-PE on S. mansoni-infected mice might indicate an effect of this reagent on cells involved in the granulomatous process.
Authors:
M Seger; D Gold; J Lengy; H Pauli; Y Keisari
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Parasite immunology     Volume:  14     ISSN:  0141-9838     ISO Abbreviation:  Parasite Immunol.     Publication Date:  1992 Jul 
Date Detail:
Created Date:  1992-12-03     Completed Date:  1992-12-03     Revised Date:  2006-05-17    
Medline Journal Info:
Nlm Unique ID:  7910948     Medline TA:  Parasite Immunol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  355-69     Citation Subset:  IM    
Affiliation:
Department of Human Microbiology, Sackler Faculty of Medicine, Tel-Aviv University, Israel.
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MeSH Terms
Descriptor/Qualifier:
Acetylmuramyl-Alanyl-Isoglutamine / analogs & derivatives*,  pharmacology
Adjuvants, Immunologic
Alkaline Phosphatase / blood
Animals
Cytotoxicity, Immunologic
Granuloma / parasitology
Liver Diseases, Parasitic / parasitology
Macrophages / immunology*
Male
Mice
Mice, Inbred ICR
Phosphatidylethanolamines / pharmacology*
Schistosoma mansoni / immunology*
Schistosomiasis mansoni / immunology*,  parasitology
Chemical
Reg. No./Substance:
0/Adjuvants, Immunologic; 0/Phosphatidylethanolamines; 53678-77-6/Acetylmuramyl-Alanyl-Isoglutamine; 83461-56-7/muramylNAc-Ala-isoGln-Lys-tripeptide-PE; EC 3.1.3.1/Alkaline Phosphatase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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