中文English
ISSN 1001-5256 (Print)
ISSN 2097-3497 (Online)
CN 22-1108/R
Volume 37 Issue 7
Jul.  2021
Turn off MathJax
Article Contents

Change in follicular helper T cells in the peripheral blood and spleen of rats after Echinococcus multilocularis infection

DOI: 10.3969/j.issn.1001-5256.2021.07.035
Research funding:

Qinghai University Affiliated Hospital for Young and Middle-aged Project (ASRF-2018-YB-01);

Qinghai Provincial Department of Science and Technology Major Science and Technology Project (2016-SF-A5);

National Natural Science Foundation of China (81960129)

  • Received Date: 2020-12-10
  • Accepted Date: 2021-01-12
  • Published Date: 2021-07-20
  •   Objective  To investigate the level of follicular helper T (Tfh) cells in the peripheral blood and spleen of the host after Echinococcus multilocularis infection and its association with the progression of echinococcosis.  Methods  A total of 20 Sprague-Dawley rats were randomly divided into normal control group and model group, with 10 rats in each group. The rats in the model group were inoculated with about 2000 protoscoleces in the right liver under direct-view laparotomy, and those in the control group were not given any treatment. The rats were anesthetized and sacrificed after 3 months to collect peripheral blood and spleen cells, and with CD4+CXCR5+PD1+ as the marker of Tfh cells, flow cytometry was used to measure the level of Tfh cells in peripheral blood and spleen. The t-test was used for comparison of Tfh cells between the two groups.  Results  After 3 months of Echinococcus multilocularis infection, marked lesions were observed in the liver, and HE staining showed the presence of protoscoleces in the lesions. The proportion of CD4+CXCR5+PD1+Tfh cells in CD4+ cells in peripheral blood was 25.63%±3.47% in the model group and 11.12%±2.94% in the normal control group (t=10.230, P < 0.001), a nd the model group had a significantly lower proportion of CD4+CXCR5+PD1+Tfh cells in all cells than the normal control group (0.08%±0.02% vs 0.18%±0.05%, t=5.520, P < 0.001). For the model group, the proportion of CD4+CXCR5+PD1+Tfh cells in all cells in the spleen decreased to 3.00%±0.42%, which was significantly lower than the proportion of 5.30%±1.40% in the normal control group (t=4.769, P < 0.001).  Conclusion  Tfh cells in peripheral blood are closely associated with the progression of echinococcosis and are expected to become an indicator of Echinococcus multilocularis infection.

     

  • loading
  • [1]
    CASULLI A, BARTH T, TAMAROZZI F. Echinococcus multilocularis[J]. Trends Parasitol, 2019, 35(9): 738-739. DOI: 10.1016/j.pt.2019.05.005.
    [2]
    WEN H, VUITTON L, TUXUN T, et al. Echinococcosis: Advances in the 21st Century[J]. Clin Microbiol Rev, 2019, 32(2): e00075-18. DOI: 10.1128/CMR.00075-18.
    [3]
    CAI H, GUAN Y, MA X, et al. Epidemiology of echinococcosis among schoolchildren in golog tibetan autonomous prefecture, qinghai, China[J]. Am J Trop Med Hyg, 2017, 96(3): 674-679. DOI: 10.4269/ajtmh.16-0479.
    [4]
    WANG J, GOTTSTEIN B. Immunoregulation in larval Echinococcus multilocularis infection[J]. Parasite Immunol, 2016, 38(3): 182-192. DOI: 10.1111/pim.12292.
    [5]
    GLATMAN ZARETSKY A, TAYLOR JJ, KING IL, et al. T follicular helper cells differentiate from Th2 cells in response to helminth antigens[J]. J Exp Med, 2009, 206(5): 991-999. DOI: 10.1084/jem.20090303.
    [6]
    HE L, GU W, WANG M, et al. Extracellular matrix protein 1 promotes follicular helper T cell differentiation and antibody production[J]. Proc Natl Acad Sci U S A, 2018, 115(34): 8621-8626. DOI: 10.1073/pnas.1801196115.
    [7]
    CROTTY S. T follicular helper cell biology: A decade of discovery and diseases[J]. Immunity, 2019, 50(5): 1132-1148. DOI: 10.1016/j.immuni.2019.04.011.
    [8]
    CROTTY S. T follicular helper cell differentiation, function, and roles in disease[J]. Immunity, 2014, 41(4): 529-542. DOI: 10.1016/j.immuni.2014.10.004.
    [9]
    SONG W, CRAFT J. T follicular helper cell heterogeneity: Time, space, and function[J]. Immunol Rev, 2019, 288(1): 85-96. DOI: 10.1111/imr.12740.
    [10]
    VINUESA CG, LINTERMAN MA, YU D, et al. Follicular helper T cells[J]. Annu Rev Immunol, 2016, 34: 335-368. DOI: 10.1146/annurev-immunol-041015-055605.
    [11]
    HELMOLD HAIT S, VARGAS-INCHAUSTEGUI DA, MUSICH T, et al. Early T follicular helper cell responses and germinal center reactions are associated with viremia control in immunized rhesus macaques[J]. J Virol, 2019, 93(4). DOI: 10.1128/JVI.01687-18.
    [12]
    XU W, ZHAO X, WANG X, et al. The Transcription factor tox2 drives T follicular helper cell development via regulating chromatin accessibility[J]. Immunity, 2019, 51(5): 826-839.e5. DOI: 10.1016/j.immuni.2019.10.006.
    [13]
    WANG B, LI H, SA RL, et al. The expression of ICOS in Tfh cells and the effect of ICOS blocker on the expression of IL-21 in Tfh cells with liver fibrosis[J]. Int J Immunol, 2020, 43(5): 483-487. DOI: 10.3760/cma.j.issn.1673-4394.2020.05.001.

    王波, 李慧, 萨茹拉, 等. 四氯化碳诱导肝纤维化小鼠Tfh中ICOS的表达及ICOS阻断剂对IL-21表达的影响[J]. 国际免疫学杂志, 2020, 43(5): 483-487. DOI: 10.3760/cma.j.issn.1673-4394.2020.05.001.
    [14]
    LINDQVIST M, van LUNZEN J, SOGHOIAN DZ, et al. Expansion of HIV-specific T follicular helper cells in chronic HIV infection[J]. J Clin Invest, 2012, 122(9): 3271-3280. DOI: 10.1172/JCI64314.
    [15]
    VELU V, MYLVAGANAM G, IBEGBU C, et al. Tfh1 cells in germinal centers during chronic HIV/SIV infection[J]. Front Immunol, 2018, 9: 1272. DOI: 10.3389/fimmu.2018.01272.
    [16]
    GLATMAN ZA, TAYLOR JJ, KING IL, et al. T follicular helper cells differentiate from Th2 cells in response to helminth antigens[J]. J Exp Med, 2009, 206(5): 991-999. DOI: 10.1126/sciimmunol.aan8884.
    [17]
    KLEIN F, MOUQUET H, DOSENOVIC P, et al. Antibodies in HIV-1 vaccine development and therapy[J]. Science, 2013, 341(6151): 1199-1204. DOI: 10.1126/science.1241144.
    [18]
    HANSEN DS, OBENG-ADJEI N, LY A, et al. Emerging concepts in T follicular helper cell responses to malaria[J]. Int J Parasitol, 2017, 47(2-3): 105-110. DOI: 10.1016/j.ijpara.2016.09.004.
    [19]
    DÍAZ A, CASARAVILLA C, ALLEN JE, et al. Understanding the laminated layer of larval Echinococcus Ⅱ: Immunology[J]. Trends Parasitol, 2011, 27(6): 264-273. DOI: 10.1016/j.pt.2011.01.008.
    [20]
    HOU YJ, ZHANG LQ, FAN HN. Research advances in circulating free DNA in liver cancer and liver-related parasitic diseases[J]. J Clin Hepatol, 2020, 36(2): 430-432. DOI: 10.3969/j.issn.1001-5256.2020.02.043.

    后亚军, 张灵强, 樊海宁. 循环游离DNA在肝癌和肝相关性寄生虫病中的应用进展[J]. 临床肝胆病杂志, 2020, 36(2): 430-432. DOI: 10.3969/j.issn.1001-5256.2020.02.043.
    [21]
    WANG ZX, GOU P, YU WH, et al. Measurement and bioinformatics analysis of exosomes microRNAs in bile of hepatic alveolar echinococcosis patients with biliary tract invasion[J]. J Clin Hepatol, 2020, 36(9): 2045-2049. DOI: 10.3969/j.issn.1001-5256.2020.09.027.

    王志鑫, 苟平, 于文昊, 等. 肝泡型包虫病侵及胆道患者胆汁外泌体microRNA的检测及生物信息学分析[J]. 临床肝胆病杂志, 2020, 36(9): 2045-2049. DOI: 10.3969/j.issn.1001-5256.2020.09.027.
    [22]
    DING JB, LI YJ, ZHANG FB. Research progress of hydatidosis immunity and vaccine[J]. J Xinjiang Med Univ, 2019, 42(1): 24-28. DOI: 10.3969/j.issn.1009-5551.2019.01.005.

    丁剑冰, 李玉娇, 张峰波. 包虫病免疫及疫苗的研究进展[J]. 新疆医科大学学报, 2019, 42(1): 24-28. DOI: 10.3969/j.issn.1009-5551.2019.01.005.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Figures(3)  / Tables(2)

    Article Metrics

    Article views (947) PDF downloads(28) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return