Synthesis and evaluation of immunostimulant plasmalogen lysophosphatidylethanolamine and analogues for natural killer T cells
摘要:
Plasmalogen lysophosphatidylethanolamine (pLPE) had been identified as a self antigen for natural killer T cells (NKT cells). It is very important in the development, maturation and activation of NKT cells in thymus. Besides, pLPE is a novel type of antigen for NKT cells. To evaluate the structure-activity relationship (SAR) of this new antigen, pLPE and its analogues referred to different aliphatic chains and linkages at the sn-1 position of the glycerol backbone were synthesized, and the biological activities of these analogues was characterized. It is discovered that the linkages between phosphate and lipid moiety are not important for the antigens' activities. The pLPE analogues 1, 3, 4, 7 and 9, which have additional double bonds on lipid parts, were identified as new NKT agonists. Moreover, the analogues 4, 7 and 9 were discovered as potent Th2 activators for NKT cells. (C) 2014 Elsevier Ltd. All rights reserved.
Novel oxidized lipids are provided herein, as well as methods for producing same, and uses thereof in treating or preventing an inflammation associated with endogenous oxidized lipids and related conditions.
Novel oxidized lipids are provided herein, as well as methods for producing same, and uses thereof in treating or preventing an inflammation associated with endogenous oxidized lipids and related conditions.
Novel oxidized lipids are provided herein, as well as methods for producing same, and uses thereof in treating or preventing an inflammation associated with endogenous oxidized lipids and related conditions.
This invention is directed to an antimicrobial activity of fatty acids and monoglycerides. More particularly, this invention is directed to the inactivation of enveloped viruses and the killing of microorganisms by fatty acids and monoglycerides. The invention is also directed to antimicrobial pharmaceutical compositions consisting essentially of inert pharmaceutical carrier and an effective amount of one or more compounds selected from the group consisting of fatty acids and monoglycerides thereof.