Abstract
A novel non-pyrogenic carbocyclic muramyl dipeptide (MDP) analogue, N-¿trans-2-[[2'-(acetylamino)cyclohexyl]oxy]acetyl¿-L-alanyl-D-glutamic acid, was obtained by replacement of the N-acetylmuramic acid part and the D-isoglutamine residue of the MDP molecule by a trans-2-[[2'-(acetylamino)cyclohexyl]oxy]acetyl moiety and D-glutamic acid, respectively. The title compound was selected as a promising candidate for further evaluation among several related analogues on the basis of an immunorestoration test in mice. This novel nor-MDP analogue protects mice against the immunosuppressive effect of cyclophosphamide and increases the nonspecific resistance of mice against fungal infection. It is an immunomodulator which enhances the maturation of lymphocytes B to plasma cells and increases the activity of lymphocytes B and lymphocytes T as well as that of macrophages but does not alter the number of these cells.
Publication types
-
Research Support, Non-U.S. Gov't
MeSH terms
-
Acetylmuramyl-Alanyl-Isoglutamine / analogs & derivatives*
-
Acetylmuramyl-Alanyl-Isoglutamine / chemical synthesis*
-
Acetylmuramyl-Alanyl-Isoglutamine / chemistry
-
Acetylmuramyl-Alanyl-Isoglutamine / pharmacology
-
Adjuvants, Immunologic / chemical synthesis*
-
Adjuvants, Immunologic / chemistry
-
Adjuvants, Immunologic / pharmacology
-
Animals
-
B-Lymphocytes / cytology
-
B-Lymphocytes / drug effects
-
B-Lymphocytes / immunology*
-
Cyclophosphamide / toxicity
-
Female
-
Immune Tolerance / drug effects
-
Immunosuppressive Agents / toxicity
-
Indicators and Reagents
-
Lymphocyte Activation / drug effects
-
Macrophages / drug effects
-
Macrophages / immunology*
-
Mice
-
Mice, Inbred Strains
-
Models, Molecular
-
Molecular Structure
-
Plasma Cells / drug effects
-
Plasma Cells / immunology*
-
Spleen / immunology
-
Stereoisomerism
-
T-Lymphocytes / drug effects
-
T-Lymphocytes / immunology*
Substances
-
Adjuvants, Immunologic
-
Immunosuppressive Agents
-
Indicators and Reagents
-
N-trans-2-((2-(acetylamino)cyclohexyl)acetyl)-alanyl-glutamic acid
-
Acetylmuramyl-Alanyl-Isoglutamine
-
Cyclophosphamide