Primary brain cell infection by Toxoplasma gondii reveals the dynamics of spontaneous bradyzoite differentiation and the extend of modification of neuron biology after infection

Toxoplasma gondii is a eukaryotic parasite that form latent cyst in the brain of immunocompetent individuals. The latent parasites infection of the immune privileged central nervous system is linked to most complications. With no drug currently available to eliminate the latent cysts in the brain of infected hosts, the consequences of neurons long-term infection are unknown.. It has long been known that T. gondii specifically differentiate into a latent form (bradyzoite) in neurons, but how the infected neuron is responding to the infection remain to be elucidated. We have established a new in vitro model resulting in the production of fully mature bradyzoites cysts in brain cells. Using dual, host and parasite, RNA-seq we characterized the dynamics of differentiation of the parasite, revealing the involvement of key pathways in this process. Moreover, we identified how the infected brain cells responded to the parasite infection revealing the drastic changes that take place. We showed that neuronal specific pathways are strongly affected, with synapse signaling being particularly affected, especially glutamatergic synapse. The establishment of this new in vitro model allows to investigate both the dynamics of the parasite differentiation and the specific response of neurons to the long term infection by this parasite. Overall design: Three biological replicate of the mutant strain in presence and in abscence of Auxin. mRNA profiles iKD TgAP2IX-5 parasites was generated by high throughput sequencing using HiSeq 2500 system (Illumina).

Identifier
Source https://data.blue-cloud.org/search-details?step=~012A0B5DD0510E48E5AA7EDC916C3C104813450C589
Metadata Access https://data.blue-cloud.org/api/collections/A0B5DD0510E48E5AA7EDC916C3C104813450C589
Provenance
Instrument Illumina HiSeq 2500; ILLUMINA
Publisher Blue-Cloud Data Discovery & Access service; ELIXIR-ENA
Contributor Biology of Apicomplexan Parasites, CIIL- UMR 8204 - U1019, CNRS
Publication Year 2024
OpenAccess true
Contact blue-cloud-support(at)maris.nl
Representation
Discipline Marine Science
Temporal Point 2021-09-25T00:00:00Z