Details

Autor(en) / Beteiligte

• Sullivan, William J.
• Jeffers, Victoria

Titel

Mechanisms of Toxoplasma gondii persistence and latency

Ist Teil von

• FEMS microbiology reviews, 2012-05, Vol.36 (3), p.717-733

Ort / Verlag

Oxford, UK: Blackwell Publishing Ltd

Erscheinungsjahr

2012

Quelle

MEDLINE

Beschreibungen/Notizen

• Abstract Toxoplasma gondii is an obligate intracellular protozoan parasite that causes opportunistic disease, particularly in immunocompromised individuals. Central to its transmission and pathogenesis is the ability of the proliferative stage (tachyzoite) to convert into latent tissue cysts (bradyzoites). Encystment allows Toxoplasma to persist in the host and affords the parasite a unique opportunity to spread to new hosts without proceeding through its sexual stage, which is restricted to felids. Bradyzoite tissue cysts can cause reactivated toxoplasmosis if host immunity becomes impaired. A greater understanding of the molecular mechanisms orchestrating bradyzoite development is needed to better manage the disease. Here, we will review key studies that have contributed to our knowledge about this persistent form of the parasite and how to study it, with a focus on how cellular stress can signal for the reprogramming of gene expression needed during bradyzoite development. This review describes the molecular mechanisms orchestrating the development of latent tissue cysts of the protozoan parasite Toxoplasma gondii, a process that is critical to pathogenesis and transmission.