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Oligo-β-(1 → 3)-glucans: Impact of Thio-Bridges on Immunostimulating Activities and the Development of Cancer Stem Cells

机译:Oligo-β-(1→3)-葡聚糖:硫桥对免疫刺激活性和癌症干细胞发育的影响。

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摘要

Recent developments of innovative anticancer therapies are based on compounds likely to stimulate the immune defense of the patients. β-(1 → 3)-Glucans are natural polysaccharides well-known for their immunostimulating properties. We report here on the synthesis of small oligo-β-(1 → 3)-glucans characterized by thioglycosidic linkages. The presence of sulfur atom(s) was not only crucial to prolong in vivo immunoactive activities in time, compared to native polysaccharides, but sulfur atoms also had a direct impact on the development of colorectal cancer stem cells. As a result, a short, pure, and structurally well-defined trisaccharidic thioglucan demonstrated similar activities compared to those of natural laminarin.
机译:创新的抗癌疗法的最新进展是基于可能刺激患者免疫防御的化合物。 β-(1→3)-葡聚糖是天然多糖,以其免疫刺激特性而闻名。我们在这里报告了以寡糖苷键为特征的小寡聚-β-(1→3)-葡聚糖的合成。与天然多糖相比,硫原子的存在不仅对及时延长体内免疫活性至关重要,而且硫原子也对结直肠癌干细胞的发育产生直接影响。结果,与天然层粘连蛋白相比,短的,纯净的和结构明确的三糖硫葡聚糖表现出相似的活性。

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