天然产物研究与开发 ›› 2026, Vol. 38 ›› Issue (1): 149-157.doi: 10.16333/j.1001-6880.2026.1.016 cstr: 32307.14.1001-6880.2026.1.016

• 开发研究 • 上一篇    下一篇

枸杞多糖对狭小空间应激引发肠道炎症的干预作用

李国强1,2,王倩楠1,乔亚俊1,2,戎  林1,2,张行方3,贺奇峰4,魏立新1,毕宏涛1*   

  1. 1中国科学院西北高原生物研究所 青海省藏药药理学和安全性评价研究重点实验室,西宁 810008;2中国科学院研究生院,北京 100049;3空军军医大学西京医院,西安 710032;4青海民族大学药学院,西宁 810007
  • 出版日期:2026-01-28 发布日期:2026-01-26
  • 基金资助:
    国家自然科学基金面上项目(82171863);青海省创新平台建设专项“青海省糖复合物绿色技术创新服务平台”(2021-ZJ-T02)

Intervention effect of polysaccharides from Lycii Fructus on intestinal inflammation induced by confined space

LI Guo-qiang1,2,WANG Qian-nan1,QIAO Ya-jun1,2,RONG Lin1,2,ZHANG Xing-fang3,HE Qi-feng4,WEI Li-xin1,BI Hong-tao1*   

  1. 1Qinghai Provincial Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation,Chinese Academy of Sciences,Xining 810008,China;2Graduate School of Chinese Academy of Sciences,Beijing 100049,China;3Xijing Hospital,Fourth Military Medical University,Xi′an 710032,China; 4School of Pharmacy,Qinghai Minzu University,Xining 810007,China
  • Online:2026-01-28 Published:2026-01-26

摘要:

初步探讨枸杞水溶性多糖(Lycii Fructus water-soluble polysaccharide,LFWP)的组成含量及其主链单糖组成特征,并进一步评估其对狭小空间环境应激引发小鼠肠道炎症的干预作用。采用部分酸水解、1-苯基-3甲基-5-吡唑酮(1-phenyl-3-methyl-5-pyrazolone,PMP)柱前衍生化、高效凝胶渗透色谱法、傅里叶红外光谱和扫描电子显微镜等方法分析LFWP的组成和结构特征;HE染色和ELISA法评价LFWP对狭小空间应激引发小鼠肠道炎症的干预效果。组成结构研究表明,LFWP糖含量为90.5 mg/g,糖醛酸含量为10.7 mg/g,蛋白含量为0.4 mg/g,存在一个分布均一的主链部分,以半乳糖为主要单糖。药理活性研究表明,狭小空间环境造成小鼠结肠组织受损和炎性细胞浸润;表现为小鼠血清中肿瘤坏死因子-α(tumor necrosis factor-α,TNF-α)、白细胞介素-1β(interleukin-1β,IL-1β)、IL-6含量增加(P < 0.001),IL-10含量降低(P < 0.001);结肠组织中脂多糖(lipopolysaccharide,LPS)、TNF-α、IL-1β、IL-6含量增加(P < 0.001,P < 0.05,P < 0.01),钙卫蛋白(calprotectin,CALP)水平和髓过氧化物酶(myeloperoxidase,MPO)活性增加(P < 0.05,P < 0,01),IL-10含量降低(P < 0.001),说明长期狭小空间环境应激引发小鼠肠道炎症。LFWP高剂量组干预明显降低小鼠血清TNF-α、IL-1β和IL-6水平(P < 0.01,P < 0.001),升高IL-10水平(P < 0.001);同时明显降低小鼠结肠组织中LPS、TNF-α、IL-1β和IL-6水平(P < 0.001),升高IL-10(P < 0.05)水平,使结肠中CALP(P < 0.001)水平和MPO(P < 0.01)活性趋于正常。LFPW干预可显著改善狭小空间环境对小鼠肠道的应激损伤。

关键词: 枸杞水溶性多糖, 单糖组成, 狭小空间, 肠道炎症

Abstract:

This study investigated the composition content and main chain monosaccharide composition characteristics of the water-soluble polysaccharide of Lycii Fructus (LFWP). Furthermore, it evaluates the intervention effect of LFWP on intestinal inflammation induced by stress in mice subjected to a confined space environment. The LFWP was analyzed using methods such as partial acid hydrolysis, pre-column derivatization with 1-phenyl-3-methyl-5-pyrazolone (PMP), high-performance gel permeation chromatography, Fourier-transform infrared spectroscopy, and scanning electron microscopy. The effect of LFWP on intestinal inflammation was assessed using HE staining and ELISA method. Compositional and structural studies have shown that LFWP contained 90.5 mg/g of sugar, 10.7 mg/g of uronic acid, and 0.4 mg/g of protein. The main-chain fraction exhibited a homogeneous distribution, with galactose as the predominant monosaccharide. Pharmacological studies have demonstrated that a confined space environment can induce colonic tissue damage and inflammatory cell infiltration in mice, marked by elevated serum levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and IL-6 (P < 0.001), and reduced IL-10 (P < 0.001). Colonic tissue levels of lipopolysaccharide (LPS), TNF-α, IL-1β, and IL-6 were also increased (P < 0.001, P < 0.05, P < 0.01), alongside elevated calprotectin (CALP) (P < 0.05) and myeloperoxidase (MPO) activity (P < 0.01), and decreased IL-10 (P < 0.001), indicating confined space environment induced intestinal inflammation. High-dose LFWP intervention significantly reduced serum TNF-α, IL-1β, and IL-6 (P < 0.01, P < 0.001), increased IL-10 (P < 0.001), and lowered colonic LPS, TNF-α, IL-1β, and IL-6 levels (P < 0.001), while restoring IL-10 (P < 0.05), CALP (P < 0.001), and MPO activity (P < 0.01) towards normal. LFWP intervention could reduce the level of inflammation and ameliorate stress injury in the mouse intestine in a confined space environment.

Key words:

中图分类号:  R932