首页> 外文期刊>Comparative Medicine >Protection from Cryptosporidium parvumInfection by  T Cells in Mice that Lack α T Cells
【24h】

Protection from Cryptosporidium parvumInfection by  T Cells in Mice that Lack α T Cells

机译:通过保护免受小隐孢子虫感染缺乏小鼠的T细胞T细胞

获取原文
           

摘要

BackgroundandPurpose:Cryptosporidiumparvumestablishesaparasiticrelationshipwithepithelialcellsoftheintestine.Infectionwiththisprotozoanisresolvedintheimmunocompetenthost,butpersistentlife-threateninginfectiondevelopsintheimmunocompromisedhost.Weproposethat#59138;#59142;TCellsintheintestinalmucosaplayaroleinimmunitytoC.parvum.brxmlns="http://pub2web.metastore.ingenta.coms/"/brMethods:Intestinalintra-epitheliallymphocyteandlaminapropriaT-cellsubsetswereexaminedinmiceinfectedwithC.parvum.ThemicearehomozygousforadeletionoftheTCRchaingene,TCR(-/-)and,therefore,lackconventional#59138;#59142;TCells,butretainapopulationof#59138;#59142;TCellswithT-cellreceptors.Toexaminethecontributionof#59138;#59142;TCellstoimmunity,thesemiceweretreatedwithmonoclonalantibodyGL3-3A,specificforthisT-cellreceptor,thenwereinoculatedwithC.parvumoocysts.Lymphocytesubsetsandhematoxylinandeosin(HE)-stainedintestinalsectionsfromuntreatedmicewerecomparedwiththosefrommicetreatedwitheitheralowdoseofGL3-3Afor6weeks,orahighdoseofGL3-3Afor16weeks.brxmlns="http://pub2web.metastore.ingenta.coms/"/brResults:Theproportionof#59138;#59142;TCellsinthelaminapropriaincreasedininfectedmice.InmicetreatedwithalowdoseofGL3-3A,apopulationof#59138;#59142;TCellsthathadcharacteristicsofactivatedcells,wasstillevident6weeksafterinoculation.NoC.parvumdevelopmentalformswereidentifiedintheintestinalsectionsofmiceundertheseconditions.However,TCR(-/-)micetreatedwithahighdoseofGL3-3Aweredepletedof#59138;#59142;TCells,and50%ofthemicewereinfectedwithC.parvum.brxmlns="http://pub2web.metastore.ingenta.coms/"/brConclusions:The#59138;#59142;TCellscontributetoprotectionagainstC.parvuminfection.Intheabsenceofconventional#59138;#59142;TCells,activationofintestinal#59138;#59142;TCellsmaypreventinfectionwiththisorganism.
机译:BackgroundandPurpose:Cryptosporidiumparvumestablishesaparasiticrelationshipwithepithelialcellsoftheintestine.Infectionwiththisprotozoanisresolvedintheimmunocompetenthost,butpersistentlife-threateninginfectiondevelopsintheimmunocompromisedhost.Weproposethat#59138;#59142; TCellsintheintestinalmucosaplayaroleinimmunitytoC.parvum 方法:Intestinalintra-epitheliallymphocyteandlaminapropriaT -细胞亚群是用C.parvum.TCR(-/-)的半精子脱氧法检测的,因此缺乏常规的#59138;#59142; T细胞,但保留了带有T细胞受体的免疫细胞,#59138;#59142; T细胞和带有T-3受体的T细胞。针对该T细胞受体,然后接种C.parvumo囊胚。将未经处理的小鼠的淋巴细胞亚群和苏木精-伊红(HE)染色的肠道切片与用低剂量的GL3-3A处理过的小鼠的肠切片进行了6周的比较, 结果:#59138;#59142;丙酸固有层中的T细胞增加了被感染的小鼠。用低剂量的GL3-3A处理的小鼠;#59138的种群;#59138的种群。具有激活细胞特征的T细胞在接种后6周仍然清晰可见。在这种情况下,在肠道的小鼠肠段中未鉴定到C.parvum发育形式。然而,在GL3-3中用**的TCR(-/-)小鼠在#50 ns上用#3的n储存,并用#3的nt保留了#3的n值,并用#50的ns保留了#3的n值。 /“> 结论:在没有常规#59138;#59142; TCells激活肠道的情况下,#59138;#59142; TCells有助于保护C.parvum感染。#59138;#59142; TCells可以防止这种微生物感染。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号