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Updated: Jun 12, 2025

Evaluation of Extracellular Vesicle Function During Malaria Infection
Published on: February 14, 2018
Overview of extracellular vesicles in pathogens with special focus on human extracellular protozoan parasites
Johan Alvarado-Ocampo1, Elizabeth Abrahams-Sandí1,2, Lissette Retana-Moreira1,2
1Universidad de Costa Rica, Facultad de Microbiología, Centro de Investigación en Enfermedades Tropicales, San José, Costa Rica.
Abstract:
Extracellular vesicles (EVs) are lipid-bilayered membrane-delimited particles secreted by almost any cell type, involved in different functions according to the cell of origin and its state. From these, cell to cell communication, pathogen-host interactions and modulation of the immune response have been widely studied. Moreover, these vesicles could be employed for diagnostic and therapeutic purposes, including infections produced by pathogens of diverse types; regarding parasites, the secretion, characterisation, and roles of EVs have been studied in particular cases. Moreover, the heterogeneity of EVs presents challenges at every stage of studies, which motivates research in this area. In this review, we summarise some aspects related to the secretion and roles of EVs from several groups of pathogens, with special focus on the most recent research regarding EVs secreted by extracellular protozoan parasites.
Insights
Extracellular vesicles (EVs) from protozoan parasites are key in cell communication and host interactions. Research highlights their roles and challenges in studying these diverse particles for diagnostics and therapeutics.
Area of Science:
- Cell Biology
- Parasitology
- Immunology
Background:
- Extracellular vesicles (EVs) are vital mediators of intercellular communication, involved in various biological processes.
- Their roles in pathogen-host interactions and immune modulation are extensively studied.
- EVs from parasites, particularly extracellular protozoa, are increasingly recognized for their significance.
Purpose of the Study:
- To review the secretion and roles of pathogen-derived EVs.
- To focus on recent advancements in understanding EVs from extracellular protozoan parasites.
- To address the heterogeneity challenges in EV research.
Main Methods:
- Literature review of recent studies on pathogen-derived EVs.
- Focus on secretion mechanisms and functional roles.
- Analysis of characterization techniques and challenges.
Main Results:
- EVs play diverse roles in parasite biology and host interactions.
- Specific examples of EVs from various pathogen groups are discussed.
- Recent research on extracellular protozoan parasite EVs is highlighted.
Conclusions:
- EVs are crucial in parasite-host dynamics and immune responses.
- Understanding EV heterogeneity is critical for future research and applications.
- Further investigation into parasite EVs holds promise for diagnostics and therapeutics.
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