HUMAN iNKT CELL ACTIVATION USING GLYCOLIPIDS WITH ALTERED GLYCOSYL GROUPS
申请人:Academia Sinica
公开号:US20150071960A1
公开(公告)日:2015-03-12
Glycosphingolipids (GSLs) bearing α-glucose (α-Glc) that preferentially stimulate human invariant NKT (iNKT) cells are provided. GSLs with α-glucose (α-Glc) that exhibit stronger induction in humans (but weaker in mice) of cytokines and chemokines and expansion and/or activation of immune cells than those with α-galactose (α-Gal) are disclosed. GSLs bearing α-glucose (α-Glc) and derivatives of α-Glc with F at the 4 and/or 6 positions are provided. Methods for iNKT-independent induction of chemokines by the GSL with α-Glc and derivatives thereof are disclosed. Methods for immune stimulation in humans using GSLs with α-Glc and derivatives thereof are provided.
Synthetic preparation and immunological evaluation of β-mannosylceramide and related <i>N</i>-acyl analogues
作者:Sage A. Robinson、Jessica Yau、Masaki Terabe、Jay A. Berzofsky、Gavin F. Painter、Benjamin J. Compton、David S. Larsen
DOI:10.1039/d0ob00223b
日期:——
The synthesis of the invariant natural killer (iNK) T cell agonist β-mannosylceramide along with a series of fatty amide analogues is reported. Of the six β-glycosylation protocols investigated, the sulfoxide methodology developed by Crich and co-workers proved to be the most effective where the reaction of a mannosyl sulfoxide and phytosphingosine derivative gave a key glycolipid intermediate as a
Synthesis of 1-thio-phytosphingolipid analogs by microwave promoted reactions of thiols and aziridine derivatives
作者:Anna Alcaide、Amadeu Llebaria
DOI:10.1016/j.tetlet.2012.02.066
日期:2012.4
A practical and versatile method for the synthesis of 1-thio-phytosphingolipid analogs through regioselective nucleophilic ring-opening reactions of phytosphingosine aziridine derivatives with thiols is described. The reactions were carried out with N-acylaziridines and a variety of thiol compounds. Microwave irradiation highly improved the yield of the ring-opening reaction and the intermediate N-acyl
Synthesis and Bioassay of Neurogenically Potent Gangliosides DSG-A, Hp-s1 and Their Analogues
作者:Ganesh B. Shelke、Yu-Hsuan Lih、Ying-Ju Liao、Chih-Wu Liang、Tzer-Min Kuo、Ying-Chin Ko、Shun-Yuan Luo
DOI:10.1021/acschemneuro.8b00055
日期:2018.6.20
the search of a potent candidate for neurotherapy, we designed and synthesized various analogues of ganglioside Hp-s1. The modification includes the change in hydrophobicity by varying the carbon chain length, altering the number of hydrogen bonds, and replacing the anomeric atom. The chemical synthesis was carried out by using various methods and discussed in details. The neuritogenic activities of