吉林大学学报(医学版) ›› 2023, Vol. 49 ›› Issue (6): 1452-1456.doi: 10.13481/j.1671-587X.20230607

• 基础研究 • 上一篇    下一篇

聚岩藻多糖对小鼠巨噬细胞分泌炎症因子的影响及其机制

周雪冰,林千千,李艳春()   

  1. 吉林大学第一医院小儿呼吸科,吉林 长春 130021
  • 收稿日期:2023-07-04 出版日期:2023-11-28 发布日期:2023-12-22
  • 通讯作者: 李艳春 E-mail:yanchun@jlu.edu.cn
  • 作者简介:周雪冰(1997-),女,四川省遂宁市人,在读硕士研究生,主要从事儿童呼吸系统疾病方面的研究。
  • 基金资助:
    吉林省科技厅科技发展计划项目(20190201036JC);吉林省财政厅医疗卫生人才专项项目(JLSWSRCZX2021)

Effect of polysaccharides from porphyra on inflammatory factors secreted by macrophages in mice and its mechanism

Xuebing ZHOU,Qianqian LIN,Yanchun LI()   

  1. Department of Pediatric Respiratory,First Hospital,Jilin University,Changchun 130021,China
  • Received:2023-07-04 Online:2023-11-28 Published:2023-12-22
  • Contact: Yanchun LI E-mail:yanchun@jlu.edu.cn

摘要:

目的 探讨聚岩藻多糖对脂多糖(LPS)诱导的小鼠巨噬细胞RAW264.7分泌炎性因子的影响,并阐明其免疫调节作用。 方法 取对数生长期RAW264.7细胞,分为对照组、LPS组和LPS+聚岩藻多糖组,采用CCK-8法检测各组细胞存活率,酶联免疫吸附试验(ELISA)法检测各组细胞培养上清中白细胞介素6(IL-6)、肿瘤坏死因子α(TNF-α)、单核细胞趋化因子1(MCP-1)、巨噬细胞炎性蛋白(MIP)-1α和MIP-1β水平。 结果 与对照组比较,LPS组和LPS+聚岩藻多糖组细胞存活率明显升高(P<0.01),细胞培养上清中IL-6、TNF-α、MCP-1、MIP-1α和MIP-1β水平均明显升高(P<0.01)。与LPS组比较,LPS+聚岩藻多糖组细胞存活率明显降低(P<0.01),细胞培养上清中IL-6、TNF-α、MCP-1、MIP-1α和MIP-1β水平明显降低(P<0.01)。 结论 聚岩藻多糖可抑制小鼠巨噬细胞对炎症因子 IL-6、TNF-α、MCP-1、MIP-1α和MIP-1β分泌的影响,具有潜在的免疫调节作用。

关键词: 聚岩藻多糖, 免疫调节, 巨噬细胞, 炎症因子, 脂多糖

Abstract:

Objective To discuss the effect of polysaccharides from porphyra on the inflammatory factors secreted by macrophage RAW264.7 cells in the mice induced by lipopolysaccharide (LPS),and to clarify their immunomodulatory effect. Methods The RAW264.7 cells at logarithmic growth phase were divided into control group, LPS group, and LPS+polysaccharide from porphyra group. The viabilities of the cells in various groups were detected by CCK-8 method;the levels of interleukin-6 (IL-6),tumor necrosis factor-α (TNF-α), monocyte chemotactic protein-1 (MCP-1), macrophage inflammatory protein (MIP)-1α,and MIP-1β in the cell culture supernatants in various groups were detected by enzyme-linked immunosorbent assay (ELISA) method. Results Compared with control group, the survival rate of the cells and the levels of IL-6, TNF-α, MCP-1, MIP-1α, and MIP-1β in the culture supernatant in LPS group and LPS+polysaccharide from porphyra group were significantly increased (P<0.01). Compared with LPS group, the survival rate of the cells and the levels of IL-6, TNF-α, MCP-1, MIP-1α, and MIP-1β in the culture supernatant in LPS+polysaccharide from porphyra group were significantly decreased (P<0.01). Conclusion polysaccharides from porphyra can inhibit the impact of the mouse macrophages on the secretion of inflammatory factors IL-6,TNF-α,MCP-1,MIP-1α,and MIP-1β,and have the potential immunomodulatory effect.

Key words: Polysaccharides from porphyra, Immune regulation, Macrophages, Inflammatory factor, Lipopolysaccharide

中图分类号: 

  • R282.77