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Toxoplasma gondii: Bradyzoite Differentiation In Vitro and In Vivo.
Mayoral, Joshua; Di Cristina, Manlio; Carruthers, Vern B; Weiss, Louis M.
Afiliação
  • Mayoral J; Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA.
  • Di Cristina M; Department of Chemistry, Biology, and Biotechnology, University of Perugia, Perugia, Italy.
  • Carruthers VB; Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI, USA.
  • Weiss LM; Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, USA. louis.weiss@einstein.yu.edu.
Methods Mol Biol ; 2071: 269-282, 2020.
Article em En | MEDLINE | ID: mdl-31758458
ABSTRACT
Toxoplasma gondii, a member of the Apicomplexa, is known for its ability to infect an impressive range of host species. It is a common human infection that causes significant morbidity in congenitally infected children and immunocompromised patients. This parasite can be transmitted by bradyzoites, a slowly replicating life stage found within intracellular tissue cysts, and oocysts, the sexual life cycle stage that develops in domestic cats and other Felidae. T. gondii bradyzoites retain the capacity to revert back to the quickly replicating tachyzoite life stage, and when the host is immune compromised unrestricted replication can lead to significant tissue destruction. Bradyzoites are refractory to currently available Toxoplasma treatments. Improving our understanding of bradyzoite biology is critical for the development of therapeutic strategies to eliminate latent infection. This chapter describes a commonly used protocol for the differentiation of T. gondii tachyzoites into bradyzoites using human foreskin fibroblast cultures and a CO2-limited alkaline cell media, which results in a high proportion of differentiated bradyzoites for further study. Also described are methods for purifying tissue cysts from chronically infected mouse brain using isopycnic centrifugation and a recently developed approach for measuring bradyzoite viability.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Toxoplasma Tipo de estudo: Guideline Limite: Animals / Humans Idioma: En Ano de publicação: 2020 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Toxoplasma Tipo de estudo: Guideline Limite: Animals / Humans Idioma: En Ano de publicação: 2020 Tipo de documento: Article