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2021-01-06Zeitschriftenartikel DOI: 10.18452/23247
Toxoplasma and Eimeria co-opt the host cFos expression for intracellular development in mammalian cells
Ren, Bingjian
Schmid, Manuela
Scheiner, Mattea
Mollenkopf, Hans-Joachim cc
Lucius, Richard
Heitlinger, Emanuel cc
Gupta, Nishith cc
Lebenswissenschaftliche Fakultät
Successful asexual reproduction of intracellular pathogens depends on their potential to exploit host resources and subvert antimicrobial defense. In this work, we deployed two prevalent apicomplexan parasites of mammalian cells, namely Toxoplasma gondii and Eimeria falciformis, to identify potential host determinants of infection. Expression analyses of the young adult mouse colonic (YAMC) epithelial cells upon infection by either parasite showed regulation of several distinct transcripts, indicating that these two pathogens program their intracellular niches in a tailored manner. Conversely, parasitized mouse embryonic fibroblasts (MEFs) displayed a divergent transcriptome compared to corresponding YAMC epithelial cells, suggesting that individual host cells mount a fairly discrete response when encountering a particular pathogen. Among several host transcripts similarly altered by T. gondii and E. falciformis, we identified cFos, a master transcription factor, that was consistently induced throughout the infection. Indeed, asexual growth of both parasites was strongly impaired in MEF host cells lacking cFos expression. Last but not the least, our differential transcriptomics of the infected MEFs (parental and cFos-/- mutant) and YAMC epithelial cells disclosed a cFos-centered network, underlying signal cascades, as well as a repertoire of nucleotides- and ion-binding proteins, which presumably act in consort to acclimatize the mammalian cell and thereby facilitate the parasite development.
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This article was supported by the German Research Foundation (DFG) and the Open Access Publication Fund of Humboldt-Universität zu Berlin.
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(CC BY-NC-ND 4.0) Attribution-NonCommercial-NoDerivatives 4.0 International(CC BY-NC-ND 4.0) Attribution-NonCommercial-NoDerivatives 4.0 International(CC BY-NC-ND 4.0) Attribution-NonCommercial-NoDerivatives 4.0 International(CC BY-NC-ND 4.0) Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI
10.18452/23247
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https://doi.org/10.18452/23247
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<a href="https://doi.org/10.18452/23247">https://doi.org/10.18452/23247</a>