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Updated: Jan 17, 2026

Investigating the Phagocytosis of Leishmania using Confocal Microscopy
Published on: July 29, 2021
mGem: Extracellular vesicles in Leishmania-secret messengers driving infection and disease
Patricia Xander1, Camila I de Oliveira2,3
1Departamento de Ciências Farmacêuticas, Instituto de Ciências Ambientais Químicas e Farmacêuticas, UNIFESP, Diadema, Brazil.
Abstract:
Leishmaniasis is a disease caused by Leishmania parasites, transmitted by insects, that occurs worldwide. The parasite and parasite-infected cells release extracellular vesicles (EVs), which are involved in numerous biological processes. EVs secreted by Leishmania modulate the host cell and, in turn, the immune response. In this review, we focused on two particular EV-related topics: (i) EVs as carriers of Leishmania virulence factors and implications in parasite biology, and (ii) the effects of Leishmania-derived EVs on the host's immune response.
Insights
Leishmania parasites cause leishmaniasis, a global disease transmitted by insects. This review explores how parasite-derived extracellular vesicles (EVs) carry virulence factors and impact host immune responses.
Area of Science:
- Parasitology
- Immunology
- Cell Biology
Background:
- Leishmaniasis is a widespread parasitic disease transmitted by insect vectors.
- Extracellular vesicles (EVs) are released by Leishmania parasites and infected cells, playing roles in biological processes.
- Leishmania-derived EVs are known to modulate host cells and influence the immune system.
Purpose of the Study:
- To review the role of extracellular vesicles (EVs) in Leishmania biology and pathogenesis.
- To examine EVs as carriers of Leishmania virulence factors.
- To analyze the impact of Leishmania-derived EVs on the host immune response.
Main Methods:
- Literature review focusing on extracellular vesicles (EVs) in leishmaniasis.
- Analysis of studies investigating Leishmania virulence factors carried by EVs.
- Synthesis of research on the immunomodulatory effects of Leishmania-derived EVs.
Main Results:
- Leishmania-derived EVs act as crucial mediators, transporting virulence factors that influence parasite biology.
- These EVs significantly modulate host cell functions and alter the host's immune response.
- EVs play a complex role in the intricate host-parasite interactions during leishmaniasis.
Conclusions:
- Extracellular vesicles (EVs) are key players in Leishmania pathogenesis and parasite biology.
- Understanding Leishmania-EV interactions is vital for developing novel therapeutic strategies.
- Further research into EVs offers potential for new diagnostic and treatment approaches for leishmaniasis.
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