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 JoVE Immunology and Infection

取得高纯度弓形虫卵囊

1, 2, 3, 2,4

1Dynamac, Inc., 2Department of Biological Sciences, University of Cincinnati, McMicken College of Arts and Science, 3Animal Parasitic Disease Laboratory, Agricultural Research Service, U.S. Department of Agriculture, 4National Exposure Research Laboratory, US Environmental Protection Agency

 

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Cite this Article: 取得高纯度弓形虫卵囊

Staggs, S. E., See, M. J., Dubey, J. P., Villegas, E. N. Obtaining Highly Purified Toxoplasma gondii Oocysts by a Discontinuous Cesium Chloride Gradient. J. Vis. Exp. (33), e1420, doi:10.3791/1420 (2009).

Abstract: 取得高纯度弓形虫卵囊

弓形虫是专性细胞内原虫通常感染人类的病原体。这是一个很好的特点apicomplexan导致食物和水传播的疾病暴发。终宿主是猫科动物性复制,结果导致发生发展的高度传染性和环保耐的卵囊。通过组织囊肿的摄入受污染的肉类或从土壤或水中的卵囊感染发生。感染通常无症状的健康人,但在终身潜伏感染的结果,可以重新成为免疫功能低下引起弓形虫脑炎和死亡,如果个人。肉类污染, T 弓形虫包囊已经在欧洲和美国感染的主要来源, T的患病率显着降低动物管理和饲养方法的最新变化和提高粮食处理和加工程序21, 弓形虫包囊。然而,在人类的血清阳性率仍然相对较高,表明从卵囊污染的土壤或水的接触是可能的。事实上,水性弓形虫病疫情报告,全球支持的理论接触的环境卵囊形成造成了巨大健康风险3-5。迄今为止,了解T 患病率的研究弓形虫卵囊在水和环境是有限的,由于缺乏工具来检测环境中的5,6卵囊。这主要是由于缺乏获得大量的高度纯化的T弓形虫卵囊感染的猫为研究目的的高效净化协议。这项研究描述了一个修改后的CSCL方法,轻松净化T.的发展适用于分子生物学和组织培养操作 7感染的猫粪便弓形虫卵囊。

Protocol: 取得高纯度弓形虫卵囊

Disclosures: 取得高纯度弓形虫卵囊

Acknowledgements: 取得高纯度弓形虫卵囊

我们想感谢的技术审查,技术和行政支持的手稿和阿布赛义德博士和琳达Ransick蔻布林克曼和迈克尔洁具。美国通过其部分资金和研究合作的研究和发展办公室的环境环保局这里描述根据合同编号EP - D - 06 - 096 Dynamac公司和一个机构间协议DW - 12 - 92289801 - 0美国农业部。它一直受到机构的审查和出版批准。提及的贸易名称或商业产品并不构成认可或推荐使用。 MJS当前地址:Dynamac,公司辛辛那提,俄亥俄州。

References: 取得高纯度弓形虫卵囊

  1. Dubey, J.P. et al. Prevalence of viable Toxoplasma gondii in beef, chicken, and pork from retail meat stores in the United States: risk assessment to consumers. J. Parasitol. 91, 1082-93 (2005).
  2. Tenter, A.M., Heckeroth, A.R. & Weiss, L.M. Toxoplasma gondii: from animals to humans. Int. J. Parasitol. 30, 1217-58 (2000).
  3. Bowie, W.R. et al. Outbreak of toxoplasmosis associated with municipal drinking water. Lancet 350, 173-7 (1997).
  4. de Moura, L. et al. Waterborne toxoplasmosis, Brazil, from field to gene. Emerg. Infect. Dis. 12, 326-9 (2006).
  5. Jones, J.L. & Dubey, J.P. Waterborne toxoplasmosis - Recent developments. Exp. Parasitol. doi: 10.1016/j.exppara.2009.03.013 (2009).
  6. Dumetre, A. & Darde, M.L. How to detect Toxoplasma gondii oocysts in environmental samples? FEMS Microbiol. Rev. 27, 651-61 (2003).
  7. Dumetre, A. & Darde, M.L. Purification of Toxoplasma gondii oocysts by cesium chloride gradient. J. Microbiol. Methods 56, 427-30 (2004).
  8. Dubey, J.P. Toxoplasmosis of Animals and Man. 2nd ed. CRC Press, Inc., Boca Raton, FL. In press (2009).

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1 Comment

Good protocol for study of Toxoplasma gondii!

1

Reply

Posted by: Wenchao YanApril 17, 2011, 10:07 AM

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