Synthesis and biological testing of thioalkane- and thioarene-spaced bis-β-d-glucopyranosides
摘要:
A three-step synthesis of bis-beta-D-glucopyranosides containing thioalkane or thioarene spacers of different length and flexibility is described. The key-step reaction allows an easy modulation of final saccharidic products so that a library of molecules with different glycosidic residues and spacers can be obtained. Two of the new thioarene-spaced bis-beta-D-glucopyranosides endow with a specific cytotoxic potential. A more detailed investigation of one of the two compounds ascertains that this effect is attributable to induction of cell death by apoptosis. (c) 2009 Elsevier Ltd. All rights reserved.
Sulfenic acid – derived glycoconjugated disulfides and sulfoxides: a biological evaluation on human red blood cells
摘要:
This article examines the effects of some glycoconjugated disulfides and sulfoxides on red blood cells (RBCs). Compounds under study show sugar units connected directly or through a benzene platform, and have been obtained following synthetic pathways based on the sulfenic acid chemistry. In order to evaluate the relationship between the structural features of the thioglycoconjugates under investigation and their potential biological activity, we were interested in assessing both the cytotoxicity and hemolytic activity produced on human RBCs by overnight exposition to the thioglycoconjugates. The absence of both cytotoxic effect and hemolysis produced by the tested compounds on erythrocytes supports the rational design of hemocompatible molecules for biomedical applications.[GRAPHICS].
Synthesis and biological testing of thioalkane- and thioarene-spaced bis-β-d-glucopyranosides
作者:Maria C. Aversa、Anna Barattucci、Paola Bonaccorsi、Francesca Marino-Merlo、Antonio Mastino、Maria T. Sciortino
DOI:10.1016/j.bmc.2009.01.010
日期:2009.2
A three-step synthesis of bis-beta-D-glucopyranosides containing thioalkane or thioarene spacers of different length and flexibility is described. The key-step reaction allows an easy modulation of final saccharidic products so that a library of molecules with different glycosidic residues and spacers can be obtained. Two of the new thioarene-spaced bis-beta-D-glucopyranosides endow with a specific cytotoxic potential. A more detailed investigation of one of the two compounds ascertains that this effect is attributable to induction of cell death by apoptosis. (c) 2009 Elsevier Ltd. All rights reserved.
Sulfenic acid – derived glycoconjugated disulfides and sulfoxides: a biological evaluation on human red blood cells
This article examines the effects of some glycoconjugated disulfides and sulfoxides on red blood cells (RBCs). Compounds under study show sugar units connected directly or through a benzene platform, and have been obtained following synthetic pathways based on the sulfenic acid chemistry. In order to evaluate the relationship between the structural features of the thioglycoconjugates under investigation and their potential biological activity, we were interested in assessing both the cytotoxicity and hemolytic activity produced on human RBCs by overnight exposition to the thioglycoconjugates. The absence of both cytotoxic effect and hemolysis produced by the tested compounds on erythrocytes supports the rational design of hemocompatible molecules for biomedical applications.[GRAPHICS].