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Review
. 2019:104:39-112.
doi: 10.1016/bs.apar.2019.02.003. Epub 2019 Apr 9.

A new level of complexity in parasite-host interaction: The role of extracellular vesicles

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Review

A new level of complexity in parasite-host interaction: The role of extracellular vesicles

Maibritt Mardahl et al. Adv Parasitol. 2019.

Abstract

Humans and animals have co-existed with parasites in a battle of constant adaptation to one another. It is becoming increasingly clear that extracellular vesicles (EVs) play important roles in this co-existence and pathology. This chapter reviews the current research on EVs released by protozoa, nematodes, trematodes, and cestodes with a special focus on EVs in parasite life cycles. The environmental changes experienced by the parasite during its life cycle is associated with distinct changes in EV release and content. The function of these EV seems to have a significant influence on parasite pathology and survival in the host by concomitantly modulating host immune responses and triggering parasite differentiation. The role of EVs in communication between the parasites and the host adds a new level of complexity in our understanding of parasite biology, which may be a key to further understand the complexity behind host-parasite interactions and communication. This increased understanding can, in turn, open up new avenues for vaccine, diagnostic, and therapeutic development for a wide variety of diseases such as parasite infection, cancers, and immunological disorders.

Keywords: Extracellular vesicles; Host immunomodulation; Nematodes; Parasites; Protozoa.

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