中国血吸虫病防治杂志 ›› 2016, Vol. 28 ›› Issue (3): 293-296,322.

• 论著 • 上一篇    下一篇

旋毛虫成虫排泄分泌蛋白抗CLP诱导的小鼠脓毒症的观察

杨小迪1 , 贺文欣2 , 方强1 , 宋迪1 , 吴琦1 , 王小莉1 , 李楠3 , 齐琦2 ,万勇坤4 , 张慧1 , 周瑞4 , 陈兴智1 , 刘牧林4 , 李徽徽2* , 褚亮5*   

  1. 1 蚌埠医学院病原生物学教研室, 安徽省感染与免疫重点实验室 (蚌埠 23303); 2 蚌埠医学院组织学与胚胎学教研室; 3 蚌埠医学 院病理学教研室; 4蚌埠医学院第一附属医院; 5 蚌埠医学院第二附属医院
  • 出版日期:2016-06-13 发布日期:2016-06-14
  • 通讯作者: 李徽徽, 褚亮
  • 作者简介:杨小迪, 男, 博士, 副教授。研究方向: 蠕虫与自身免疫学疾病的关联性研究
  • 基金资助:
    国家自然科学基金 (81441120); 安徽高校科研创新平台团队项目 (2016?40); 安徽省自然科学基金 (1508085QH158); 安徽省高校 优秀青年人才支持计划重点项目(gxyqZD2016159); 安徽省高等学校自然科学研究重点项目(KJ2016A708、 KJ2016A489、 KJ2016A869)

Effect of excretory/secretory protein of Trichinella spiralis adult worm on CLP-induced sepsis in mice

YANG Xiao-di 1 ,HE Wen-xin2 ,FANG Qiang1 ,SONG Di 1 ,WU Qi 1 ,WANG Xiao-li 1 ,LI Nan3 ,QI Qi 2 ,WAN Yong-kun4 ,ZHANG Hui 1 , ZHOU Rui 4 , CHEN Xing-zhi 1 ,LIU Mu- lin4 , LI Hui-hui 2* , CHU Liang5*   

  1. 1 Department of Microbiology and Parasitology,Anhui Key Laboratory of Infection and Immunity,Bengbu Medical College, Bengbu 233030,China;2 Department of Histology and Embryology,Bengbu Medical College,China;3 Department of Patholo? gy,Bengbu Medical College,China;4 First Affiliated Hospital of Bengbu Medical College,China;5 The Second Affiliated Hos? pital of Bengbu Medical College,China
  • Online:2016-06-13 Published:2016-06-14
  • Contact: LI Hui?hui,CHU Liang

摘要: 目的 目的 探讨旋毛虫成虫排泄分泌蛋白 (AES) 对盲肠结扎穿孔术 (CLP) 诱导的小鼠脓毒症的抑制作用。方法 方法 将48只BALB/c小鼠随机分为3组, 即假手术对照组 (PBS + sham组, A组)、 脓毒症组 (PBS + CLP组, B组)、 AES蛋白治疗 组 (AES + CLP组, C组)。A组和B组于CLP术后经腹腔注射200 μl PBS, C组术后经腹腔注射含25 μg AES蛋白的等量 PBS。每组随机抽取8只, 建模后观察各组小鼠的一般情况及96 h生存率; 每组其余8只小鼠于建模后12 h取肝、 肺、 肾, HE染色观察病理改变; 以酶联免疫吸附试验 (ELISA) 检测小鼠血清中TNF?α、 IL?1β、 IL?6、 IL?10及TGF?β细胞因子水平 的变化。结果 结果 3组小鼠96 h生存率差异有统计学意义 (χ2 = 21.16, P < 0.05); 与A组 (100%) 相比, B组小鼠生存率 (0) 降低 (P < 0.05), 且肺、 肝及肾脏损伤明显加重; 经AES治疗后, C组存活率 (75%) 明显增加 (P < 0.05), 小鼠肺脏、 肝脏及 肾脏病理损伤亦显著缓解。3组小鼠血清中的促炎因子TNF?α (F = 27.11, P < 0.05)、 IL?1β (F = 18.75, P < 0.05) 及IL?6 (F = 100.93, P < 0.05) 水平差异均有统计学意义; B组小鼠的促炎因子水平均高于A组 (P均< 0.05); 经AES治疗后, C组 小鼠上述3种促炎因子水平较B组均显著下降 (P均< 0.05)。3组小鼠血清中的调节性细胞因子IL?10 (F = 10.88, P < 0.05) 及TGF?β (F = 11.37, P < 0.05) 水平差异亦有统计学意义; 经AES治疗后, C组小鼠IL?10及TGF?β分泌水平较B组亦 明显增加 (P < 0.05)。结论 结论 旋毛虫AES对CLP诱导的BALB/c小鼠脓毒症有显著的缓解作用。

关键词: 旋毛虫, 盲肠结扎穿孔术, 排泄分泌蛋白, 脓毒症, 小鼠, 促炎因子, 抑炎因子

Abstract: Objective Objective To observe the effect of excretory/secretory products from Trichinella spiralis adult worms(AES)on cecal ligation and puncture(CLP) ?induced sepsis in mice. Methods Methods Forty? ?eight BALB/c mice were randomly divided into 3 groups:a sham operation group(PBS + sham group,Group A),a CLP?induced sepsis group(PBS+ CLP group,Group B)and an AES treatment group(AES+ CLP group,Group C) . The mice of each group were intraperitoneally injected with 25 μg of AES or PBS only as a control in a total volume of 200 μl. Eight mice from each group were selected randomly for survival analy? sis of 96 hours. The other 8 mice in each group were observed for pathological changes in the lung,liver and kidney tissues by HE staining 12 h after CLP,and then determined for the detection of cytokines including TNF?α,IL?1β,IL?6,IL?10 and TGF?β in the sera by ELISA. Results Results The difference among the survival rates of mice in the 3 groups was statistically significant (χ2 = 21.16,P < 0.05) . Compared to Group A(100%),the survival rate of mice in Group B(0)decreased significantly(P < 0.05),and also the pathological damage degrees in the lung,liver and kidney tissues of the mice in Group B increased signifi? cantly after CLP. Compared with the mice in group B,the survival rate of those in Group C(70%)increased significantly(P < 0.05),and the pathological damage degrees in the lung,liver and kidney tissues of the mice in Group C decreased significantly after the treatment with AES. The differences among the levels of pro?inflammatory cytokines TNF?α(F = 27.11,P < 0.05),IL? 1β(F = 18.75,P < 0.05)and IL?6(F = 100.93,P < 0.05)in the sera of the mice in the three groups were statistically signifi? cant. Compared with the mice in Group A,the levels of the 3 cytokines of those in Group B increased significantly(all P < 0.05) . However,after the treatment with AES,the levels of the pro?inflammatory cytokines of those in Group C decreased signifi? cantly(all P < 0.05) . The differences among the levels of immunoregulatory cytokines IL?10(F = 10.88,P < 0.05)and TGF?β (F = 11.37,P < 0.05)in the sera of the mice in the three groups were also statistically significant. Compared with the mice in Group B,the levels of IL?10 and TGF?β of those in Group C were higher after treatment with AES(both P < 0.05) . Conclu Conclu? ? sion sion T. spiralis AES has a therapeutic potential for alleviating sepsis induced by CLP in mice.

Key words: Trichinella spiralis, Cecal ligation and puncture(CLP)operation, Excretory/secretory products, Sepsis, Pro? inflammatory cytokine, Anti?inflammatory cytokine