中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (19): 3004-3010.doi: 10.12307/2022.378

• 骨髓干细胞 bone marrow stem cells • 上一篇    下一篇

细粒棘球蚴促进骨髓间充质干细胞的增殖

梁学奇1,周  慧1,武  杰1,习  羽1,何家赓1,秦  乐1,陈雪玲2,吴向未1,孙  凡1,牛建华1   

  1. 1石河子大学医学院第一附属医院普外科,新疆维吾尔自治区石河子市   832000;2石河子大学医学院免疫学教研室,新疆维吾尔自治区石河子市   832002
  • 收稿日期:2021-01-13 修回日期:2021-03-12 接受日期:2021-08-04 出版日期:2022-07-08 发布日期:2021-12-27
  • 通讯作者: 牛建华,教授,硕士生导师,石河子大学医学院第一附属医院普外科,新疆维吾尔自治区石河子市 832000
  • 作者简介:梁学奇,男,1982年生,河南省登封市人,汉族,2020年石河子大学毕业,硕士,主治医师,主要从事肝胆外科临床疾病的基础与临床研究。
  • 基金资助:
    国家自然科学基金项目(81760570),项目负责人:吴向未;国家自然科学基金项目(81760371),项目负责人:陈雪玲

Echinococcus granulosus promotes the proliferation of bone marrow mesenchymal stem cells

Liang Xueqi1, Zhou Hui1, Wu Jie1, Xi Yu1, He Jiageng1, Qin Le1, Chen Xueling2, Wu Xiangwei1, Sun Fan1, Niu Jianhua1   

  1. 1Department of General Surgery, First Affiliated Hospital of Medical College of Shihezi University, Shihezi 832000, Xinjiang Uygur Autonomous Region, China; 2Department of Immunology, Medical College of Shihezi University, Shihezi 832002, Xinjiang Uygur Autonomous Region, China
  • Received:2021-01-13 Revised:2021-03-12 Accepted:2021-08-04 Online:2022-07-08 Published:2021-12-27
  • Contact: Niu Jianhua, Professor, Master’s supervisor, Department of General Surgery, First Affiliated Hospital of Medical College of Shihezi University, Shihezi 832000, Xinjiang Uygur Autonomous Region, China
  • About author:Liang Xueqi, Master, Attending physician, Department of General Surgery, First Affiliated Hospital of Medical College of Shihezi University, Shihezi 832000, Xinjiang Uygur Autonomous Region, China
  • Supported by:
    the National Natural Science Foundation of China, No. 81760570 (to WXW); the National Natural Science Foundation of China, No. 81760371 (to CXL)

摘要:

文题释义:
细粒棘球蚴病:是一种危害严重的人兽共患寄生虫病,多发于肝脏,呈世界性分布。截至目前,该病仍没有一个较为经济、有效的预防和治疗方法。
Notch通路的特点:①Notch的受体和配体都是膜蛋白,它介导的是两个细胞相互靠近接触之后的活化效应,而不是由分泌型的蛋白作为配体;②Notch通路不是通过激酶磷酸化逐步活化传递信号,它是Notch通过三步蛋白酶切水解,把有转录调节活性的Notch蛋白片段(NICD或ICN)释放出来,再与转录因子CSL结合,调节下游基因表达。

背景:目前,国内外有关细粒棘球蚴与间充质干细胞之间相互作用影响的报道很少,细粒棘球蚴与干细胞增殖方面的研究目前还是空白。
目的:探讨细粒棘球蚴对骨髓间充质干细胞增殖的影响及机制。
方法:分离、培养C57BL/6小鼠骨髓间充质干细胞,分为单独骨髓间充质干细胞组、Notch信号通路特异性抑制剂DAPT组、细粒棘球蚴原头蚴组、细粒棘球蚴原头蚴+特异性抑制剂DAPT组。培养1,2,3 d采用CCK-8法检测各组骨髓间充质干细胞增殖情况,Western blot、实时荧光定量PCR检测各组骨髓间充质干细胞中Notch信号通路相关Notch-1,Jagged-1,Hes-1蛋白及mRNA表达。
结果与结论:①与单独骨髓间充质干细胞组相比,特异性抑制剂DAPT组细胞增殖受到抑制(P < 0.05),细粒棘球蚴原头蚴组细胞增殖明显(P < 0.05);与特异性抑制剂DAPT组相比,细粒棘球蚴原头蚴+特异性抑制剂DAPT组细胞增殖上调(P < 0.05);②Notch-1,Jagged-1,Hes-1的蛋白及mRNA表达:特异性抑制剂DAPT组低于单独骨髓间充质干细胞组(P < 0.05);细粒棘球蚴原头蚴组高于单独骨髓间充质干细胞组(P < 0.05);细粒棘球蚴原头蚴+特异性抑制剂DAPT组高于特异性抑制剂DAPT组(P < 0.05);③结果表明,细粒棘球蚴可通过Notch信号通路促进骨髓间充质干细胞的增殖,这一现象可能为细粒棘球蚴外囊的形成机制奠定理论基础,从而解释细粒棘球蚴感染宿主后如何获得免疫逃逸,甚至可能为细粒棘球蚴病的预防和早期诊断打开一个新的研究方向。

https://orcid.org/0000-0002-9828-4931 (梁学奇) 

中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程

关键词: 干细胞, 骨髓间充质干细胞, 细粒棘球蚴, 增殖, Notch, 信号通路

Abstract: BACKGROUND: At present, there are few reports on the interaction between Echinococcus granulosus and mesenchymal stem cells at home and abroad, and the research on Echinococcus granulosus and stem cell proliferation is still blank.  
OBJECTIVE: To explore the effect and mechanism of Echinococcus granulosus on the proliferation of bone marrow mesenchymal stem cells.
METHODS:  C57BL/6 mouse bone marrow mesenchymal stem cells were isolated and cultured, and divided into bone marrow mesenchymal stem cell group, Notch signaling pathway specific inhibitor DAPT group, Echinococcus granulosus protocercaria group, and Echinococcus granulosus protocercaria + specific inhibitor DAPT group. At 1, 2, and 3 days after culture, CCK-8 assay was used to detect the proliferation of bone marrow mesenchymal stem cells in each group. Western blot assay and real-time fluorescent quantitative PCR were used to detect expression levels of Notch-1, Jagged-1, Hes-1 proteins and mRNA related to the Notch signaling pathway in bone marrow mesenchymal stem cells of each group.  
RESULTS AND CONCLUSION: (1) Compared with bone marrow mesenchymal stem cell group, and the proliferation was inhibited in the specific inhibitor DAPT group (P < 0.05), and the proliferation of the Echinococcus granulosus protocercaria group was significant (P < 0.05). Compared with the specific inhibitor DAPT group, the proliferation significantly increased in the Echinococcus granulosus protocercaria + specific inhibitor DAPT group (P < 0.05). (2) The protein and mRNA expression levels of Notch-1, Jagged-1, and Hes-1 were lower in the specific inhibitor DAPT group than those in the bone marrow mesenchymal stem cell group (P < 0.05). These expression levels in the Echinococcus granulosus protocercaria group were higher than those in the bone marrow mesenchymal stem cell group (P < 0.05); these expression levels were higher in the Echinococcus granulosus protocercaria + specific inhibitor DAPT group than those of the specific inhibitor DAPT group (P < 0.05). (3) In conclusion, Echinococcus granulosus can promote the proliferation of bone marrow mesenchymal stem cells through Notch signaling pathway. This phenomenon may lay a theoretical foundation for the formation mechanism of the outer cyst of Echinococcus granulosus, thus explaining how to obtain immune escape after the host is infected with Echinococcus granulosus. It may even open a new research direction for the prevention and early diagnosis of Echinococcus granulosus.

Key words: stem cell, bone marrow mesenchymal stem cell, echinococcus granulosus, proliferation, Notch, signaling pathway

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