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Extracellular Vesicles during TriTryps infection: Complexity and future challenges.

Izadora Volpato Rossi1, Maria Alice Ferreira Nunes1, Sandra Vargas-Otalora2

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Trypanosomatid parasites (TriTryps) use extracellular vesicles (EVs) to evade immune responses and establish infections. Understanding TriTryps-EVs structure and function is key to controlling neglected tropical diseases.

Keywords:
Cell communicationExtracellular vesiclesHost-parasite interactionInnate immunityTriTrypsTrypanosomatids

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Area of Science:

  • Parasitology
  • Cell Biology
  • Immunology

Background:

  • Trypanosomatid pathogens (TriTryps) like Leishmania spp., Trypanosoma cruzi, and Trypanosoma brucei infect humans by overcoming innate immunity.
  • Parasite-host interactions are crucial for establishing infection, with extracellular vesicles (EVs) playing a significant role.
  • EVs are key mediators of communication, carrying molecules between parasites and host cells during infection.

Purpose of the Study:

  • To review current knowledge on the structure and composition of TriTryps-EVs.
  • To elucidate the primary roles of TriTryps-EVs in parasite-host interactions and pathogenesis.
  • To highlight the potential of TriTryps-EVs as targets for therapeutic interventions.

Main Methods:

  • Literature review of studies on trypanosomatid extracellular vesicles.
  • Analysis of data on EV structure, cargo, and biogenesis.
  • Synthesis of information on the functional implications of TriTryps-EVs in infection.

Main Results:

  • TriTryps-EVs are diverse structures involved in immune evasion and host cell modulation.
  • EVs carry parasite-derived molecules that influence host cell behavior and immune responses.
  • The composition and function of TriTryps-EVs are critical for parasite survival and disease progression.

Conclusions:

  • Extracellular vesicles are central to the pathogenesis of diseases caused by TriTryps.
  • Further research into TriTryps-EVs will advance basic science understanding of parasite-host interactions.
  • Targeting TriTryps-EVs offers promising translational applications for controlling neglected tropical diseases.