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Updated: May 3, 2026

A Genetic Screen to Isolate Toxoplasma gondii Host-cell Egress Mutants

A Genetic Screen to Isolate Toxoplasma gondii Host-cell Egress Mutants

Published on: February 8, 2012

Toxoplasma development - turn the switch on or off?

Michael W White¹, Jay R Radke, Joshua B Radke

¹Department of Global Health, University of South Florida, Tampa, FL, 33612, USA.

Cellular Microbiology

|January 21, 2014

Summary

This summary is machine-generated.

Toxoplasma gondii development relies on turning off tachyzoite transcription factors and sensing the host environment. This switch from tachyzoite to bradyzoite is key for parasite transmission and disease.

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Last Updated: May 3, 2026

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Genetic Manipulation in Δku80 Strains for Functional Genomic Analysis of Toxoplasma gondii

Genetic Manipulation in Δku80 Strains for Functional Genomic Analysis of Toxoplasma gondii

Published on: July 12, 2013

Area of Science:

* Parasitology and molecular biology.
* Host-pathogen interactions.

Background:

* Toxoplasma gondii has a complex life cycle with tachyzoite and bradyzoite stages.
* The molecular mechanisms regulating the tachyzoite-to-bradyzoite differentiation are not fully understood.
* This transition is crucial for human toxoplasmosis.

Purpose of the Study:

* To review the molecular regulation of bradyzoite differentiation in Toxoplasma gondii.
* To highlight the role of tachyzoite-stage factors and host-parasite interactions.

Main Methods:

* Review of recent scientific literature.
* Analysis of molecular pathways involved in Toxoplasma differentiation.

Main Results:

* ApiAP2 transcription factors in tachyzoites must be downregulated for bradyzoite development.
* Host cell environment significantly influences bradyzoite gene expression.
* Parasite casein kinase II and host factor CDA1 are involved in sensing the host environment.

Conclusions:

* Tachyzoite gene expression and signal transduction pathways are critical for tissue cyst formation.
* Understanding these mechanisms is key to controlling Toxoplasma gondii development and transmission.