首页> 中文期刊> 《南方医科大学学报》 >日本血吸虫半胱氨酸蛋白酶抑制剂干预脂多糖诱导的小鼠脓毒症

日本血吸虫半胱氨酸蛋白酶抑制剂干预脂多糖诱导的小鼠脓毒症

         

摘要

Objective To observe the effect of Schistosoma japonicum cysteine protease inhibitor (r SjCystatin) for treatment of lipopolysaccharide(LPS)-induced sepsis in mice.Methods After a week of adaptive feeding,54 BALB/c mice were randomly divided into normal control group(group A),sepsis group(group B),and rSjCystatin intervention group(group C).The mice in group A received an intraperitoneal injection of PBS(100 μL),and those in groups B and C were injected with PBS(100 μL) containing LPS(10 mg/kg);the mice in group C were also intraperitoneally injected with 25 μg sjCystatin in 100 μL PBS 30 min after LPS injection.From each group,10 mice were randomly selected 24 h after PBS or LPS injection for detecting serum levels of TNF-α, IL-6, and IL-10 using ELISA and the levels of ALT,AST, BUN, and Cr using automatic biochemical analyzer; the pathological changes in the liver,lung and kidney were observed with HE staining.The remaining 8 mice in each group were used for observing the changes in the general condition and the 72-h survival.Results The 72-h survival rates of the mice was 100% in group A,0 in group B,and 36% in group C,showing a significant difference among the 3 groups(P<0.05).Compared with those in group A,the mice in group B exhibited obvious liver,lung,and renal pathologies with increased levels of ALT, AST, BUN, Cr, IL-6, and TNF-α (P<0.05). Treatment with sjCystatin significantly lessened LPS-induced organ pathologies, lowered the levels of liver and renal functional indexes and the pro-inflammatory cytokines,and increased the serum level of IL-10 in the mice(P<0.05).Conclusion SjCystatin can produce a significant therapeutic effect on sepsis induced by LPS in mice.%目的 探讨日本血吸虫半胱氨酸蛋白酶抑制剂(SjCystatin)对脂多糖(LPS)诱导的小鼠脓毒症的干预效果.方法 54只BALB/c小鼠适应性饲养1周后,随机分为正常对照组(PBS组,A组)、脓毒症造模组(PBS+LPS组,B组)、蛋白干预组(PBS+LPS+SjCystatin组,C组).A组腹腔注射PBS(100 μL),B组、C组腹腔注射含LPS(10 mg/kg)的PBS(100 μL),其中C组小鼠于注射LPS后30 min腹腔注射含25 μg SjCystatin蛋白的PBS(100 μL).每组随机抽取10只,造模后24 h取小鼠血清及肝、肺、肾组织,酶联免疫吸附试验(ELISA)验检血清中肿瘤坏死因子-α(TNF-α)、白细胞介素-6(IL-6)、白细胞介素-10(IL-10)水平,全自动生化分析仪检测ALT、AST、BUN和Cr水平;肝、肺和肾组织HE染色观察其病理损伤;每组余8只小鼠,造模后记录小鼠72 h生存率的差别且观察小鼠状态的改变.结果3组小鼠的72 h生存率具有统计学差异(P<0.05),与A组(100%)相比,B组(0%) 72 h生存率降低(P<0.05),经过SjCystatin蛋白治疗后,C组生存率较B组增高(36%).与A组相比,B组肝、肺、肾组织切片病理损伤加重,血清中ALT、AST、BUN、Cr、IL-6、TNF-α水平明显升高(P<0.05);与B组相比,C组调节因子IL-10水平明显升高,肝、肾、肺组织损伤明显减轻,且血清中上述肝肾功能检测指标及促炎因子水平明显降低(P<0.05).结论 SjCystatin对LPS诱导的脓毒症有显著的治疗作用.

著录项

  • 来源
    《南方医科大学学报》 |2018年第5期|625-629|共5页
  • 作者单位

    蚌埠医学院第一附属医院,安徽 蚌埠233000;

    安徽省感染与免疫重点实验室,安徽 蚌埠233000;

    安徽省感染与免疫重点实验室,安徽 蚌埠233000;

    安徽省感染与免疫重点实验室,安徽 蚌埠233000;

    安徽省感染与免疫重点实验室,安徽 蚌埠233000;

    安徽省感染与免疫重点实验室,安徽 蚌埠233000;

    安徽省感染与免疫重点实验室,安徽 蚌埠233000;

    蚌埠医学院基础医学院,安徽 蚌埠233000;

    安徽省感染与免疫重点实验室,安徽 蚌埠233000;

    蚌埠医学院第一附属医院,安徽 蚌埠233000;

    蚌埠医学院基础医学院,安徽 蚌埠233000;

    安徽省感染与免疫重点实验室,安徽 蚌埠233000;

    蚌埠医学院第一附属医院,安徽 蚌埠233000;

    蚌埠医学院基础医学院,安徽 蚌埠233000;

    山西医科大学基础医学院生理系,山西 太原030000;

    蚌埠医学院基础医学院,安徽 蚌埠233000;

    蚌埠医学院基础医学院,安徽 蚌埠233000;

    蚌埠医学院基础医学院,安徽 蚌埠233000;

    安徽省感染与免疫重点实验室,安徽 蚌埠233000;

    安徽省感染与免疫重点实验室,安徽 蚌埠233000;

    蚌埠医学院基础医学院,安徽 蚌埠233000;

    安徽省感染与免疫重点实验室,安徽 蚌埠233000;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类
  • 关键词

    脓毒症; 日本血吸虫半胱氨酸蛋白酶抑制剂; 脂多糖; 促炎因子; 免疫调节因子;

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