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Published on: March 28, 2025
Progress on the Regulation of the Host Immune Response by Parasite-Derived Exosomes
Xinyue Zhang1, Chuanxin Yu1, Lijun Song1
1National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.
Abstract:
Exosomes are membrane-bound structures released by cells into the external environment that carry a significant amount of important cargo, such as proteins, DNA, RNA, and lipids. They play a crucial role in intercellular communication. Parasites have complex life cycles and can release exosomes at different stages. Exosomes released by parasitic pathogens or infected cells contain parasitic nucleic acids, antigenic molecules, virulence factors, drug-resistant proteins, proteases, lipids, etc. These components can regulate host gene expression across species or modulate signaling pathways, thereby dampening or activating host immune responses, causing pathological damage, and participating in disease progression. This review focuses on the means by which parasitic exosomes modulate host immune responses, elaborates on the pathogenic mechanisms of parasites, clarifies the interactions between parasites and hosts, and provides a theoretical basis and research directions for the prevention and treatment of parasitic diseases.
Insights
Parasitic exosomes, tiny cell-released vesicles, carry molecules that manipulate host immunity and drive disease. Understanding these exosome interactions is key to developing new treatments for parasitic infections.
Area of Science:
- Cell biology
- Immunology
- Parasitology
Background:
- Exosomes are extracellular vesicles involved in intercellular communication, carrying diverse molecular cargo.
- Parasites release exosomes containing pathogen-specific molecules like nucleic acids, antigens, and virulence factors.
- These parasitic exosomes can significantly influence host cell functions and immune responses.
Purpose of the Study:
- To review how parasitic exosomes modulate host immune responses.
- To elucidate pathogenic mechanisms of parasites mediated by exosomes.
- To clarify host-parasite interactions and inform disease treatment strategies.
Main Methods:
- Literature review of studies on exosome-mediated host-parasite interactions.
- Analysis of molecular cargo within parasitic exosomes.
- Examination of exosome effects on host gene expression and signaling pathways.
Main Results:
- Parasitic exosomes deliver molecules that can suppress or activate host immunity.
- These exosomes contribute to pathological damage and disease progression.
- Exosomes play a critical role in regulating host-parasite communication.
Conclusions:
- Parasitic exosomes are key effectors in host-parasite interactions and disease pathogenesis.
- Targeting exosome pathways offers potential therapeutic strategies for parasitic diseases.
- Further research into exosome composition and function is needed for effective interventions.
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