来自Spatoglossum asperum的硫酸甲基:生产,结构特征和抗病毒活性
Shuvam Mukherjee1, Mathias E Chemen2, Saikat Pal1
1Department of Chemistry, The University of Burdwan, Burdwan, West Bengal, India.
Carbohydrate research
|October 15, 2024
概括
这项研究表明,一种特定的硫化海藻多糖化物S203有效抑制了简单疹病毒 (HSV) 感染,包括耐药菌株. 这一发现突显了海藻衍生化合物的潜力,作为抗病毒剂对抗HSV.
科学领域:
- 海洋天然产品 化学 化学
- 病毒学 病毒学
- 碳水化合物化学 碳水化合物化学
背景情况:
- 硫酸多糖是已知的抑制器的单纯疹病毒 (HSV) 在细胞培养中的感染性.
- Spatoglossum asperum是一种海洋藻类,具有提取生物活性化合物的潜力.
研究的目的:
- 为了从Spatoglossum asperum中产生和表征硫酸化西洛加拉克托福坎.
- 评估这些新型化合物的抗HSV活性.
- 调查有关硫化和抗HSV功效的结构-活性关系.
主要方法:
- 使用ClSO3H.Pyr/DMF和SO3.Pyr/DMF试剂的混合取-硫化过程.
- 聚糖结构的表征,包括分子量和硫酸盐含量.
- 在体外抗病毒测试以确定有效度50% (EC50) 和针对HSV变体的选择性指数.
主要成果:
- 已经成功地生产了两种西洛甲硫酸盐,S203 (17±12 kDa,14%硫酸盐) 和S204 (6%硫酸盐).
- S203显示出强大的抗HSV活性,对抗多种菌株,包括抗乙克洛维尔的HSV-1,EC50为0.6μg/ml,选择性指数为833.
- 增加的硫化显著增强了抗HSV活性,原生xylogalactofucan (S202,2%硫酸盐) 显示最小的疗效 (EC50>100μg/mL).
结论:
- 这项研究首次报告了来自Spatoglossum asperum的硫酸化西洛加拉托富坎的抗HSV活性.
- 这些发现表明,硫酸多糖的特定结构,特别是硫化程度和位置,对于抑制HSV附着和进入至关重要.
- 硫酸西洛甲富代表了一类有希望的化合物,用于开发针对简单疹病毒的新型抗病毒策略.
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