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拉米纳林及其衍生物会影响树突细胞的激活和它们与T细胞的交叉交互

Monica Daugbjerg Christensen¹, Leila Allahgholi², Justyna M Dobruchowska³

¹Department of Biotechnology and Biomedicine, Matís ohf, Vínlandsleið 12, IS-113 Reykjavík, Iceland; Faculty of Food Science and Nutrition, University of Iceland, Sæmundargata12, IS-102 Reykjavík, Iceland; Department of Immunology, Landspitali-The National University Hospital of Iceland, IS-101 Reykjavik, Iceland.

International journal of biological macromolecules

|February 21, 2025

概括

来自海藻的拉米纳林具有多种免疫调节作用. 结构上的差异影响了树突细胞的细胞因子分泌和T细胞激活,这表明治疗炎症疾病和增强疫苗的潜力.

科学领域:

海洋生物技术海洋生物技术
免疫学免疫学免疫学
碳水化合物化学碳水化合物化学

背景情况:

海藻多糖类,像拉米林一样,以其生物活性而闻名.
拉米林的结构变化可能导致不同的免疫调节效应.
了解这些结构-活性关系对于治疗应用至关重要.

研究的目的:

调查不同海藻物种中拉米林的结构变异对其免疫调节性质的影响.
为了描述拉米林及其寡糖分的特征.
评估这些化合物对树突细胞 (DC) 细胞因子分泌和T细胞激活的影响.

主要方法:

从*Laminaria digitata*,*L. hyperborea*和*Saccharina latissima*采用两步水协议提取层状蛋白质.
通过FT-IR光谱,1H NMR和MALDI-TOF MS.进行结构性表征.
使用LPHase进行酶性消化以产生寡糖分和评估DC细胞因子 (IL-6,IL-10,TNFα) 和T细胞反应 (IL-17,IL-10,IL-12p40,IFN-γ) 的评估.

主要成果:

拉米纳林被证实是具有特定物种β-1,6-分支的β-1,3结合型葡萄糖.
拉米纳林和寡糖分类通过DCs差异调节细胞因子分泌.
来自*L. hyperborea*和*S. latissima*的特定分离物显示出既有促炎 (IL-6,IL-10) 和抗炎 (TNFα) 的潜力.
共同培养实验揭示了T细胞细胞因子概况的明显影响,表明T细胞激活的调节.

结论:

来自不同海藻物种的拉米纳林具有独特的结构特征,影响其免疫调节活动.
拉米林和寡糖的尺寸分布和分支模式显著影响DC成熟和T细胞反应.
这些发现突出了结构定义的拉米林在炎症性疾病和疫苗开发中的治疗潜力.

关键词:

原性T细胞是一种全基性T细胞.棕色的大藻类棕色的大藻类树突性细胞树突性细胞免疫调节作用免疫调节作用拉米纳的结构结构.

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