Abstract
In recent years, significant progress has been made toward understanding the mechanisms of host cell invasion by the intracellular pathogen, Trypanosoma cruzi. Invasion of non-phagocytic cells by trypomastigotes, the mammalianinfective forms of T. cruzi, is achieved by a surprising mechanism whereby host cell lysosomes are recruited as a vehicle for parasite entry. These studies have revealed the existence of the lysosome exocytosis pathway, a previously unrecognised regulated secretion system in non-phagocytic mammalian cells. Host cell signalling pathways that regulate T. cruzi entry and lysosome recruitment were shown to involve the second messengers, Ca2+ and cAMP and require secreted agonist(s) generated by the parasite. In addition, the ability of T. cruzi to receive signals from the host cell in a contact-dependent manner is crucial to the invasive process. In this chapter, I will outline our current knowledge of the cellular and molecular bases for host cell invasion by T. cruzi as well as the experimental approaches taken to study this process.
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Burleigh, B.A. (2000). Lysosome Exocytosis and Invasion of Non-Phagocytic Host Cells by Trypanosoma Cruzi . In: Tschudi, C., Pearce, E.J. (eds) Biology of Parasitism. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-4622-8_9
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DOI: https://doi.org/10.1007/978-1-4757-4622-8_9
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