Host-parasite interactions mediated by cross-species microRNAs
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Updated: Sep 29, 2025

High-Throughput Transcriptome Analysis for Investigating Host-Pathogen Interactions
Published on: March 5, 2022
1Department of Tropical Diseases, Navy Medical University, Shanghai, 200433, China.
Abstract:
Parasitic diseases are still the common diseases that seriously threaten human health and life, and a better understanding of host-parasite interactions is the key to effectively controlling and ultimately eradicating these diseases. MicroRNAs (miRNAs) are ubiquitously expressed in almost all eukaryotic parasites and their hosts. These regulatory noncoding RNAs can be released by donor cells and absorbed by distant recipient cells within individual organisms. Recent studies illustrate numerous examples of cross-species miRNA exchanges within the context of host-parasite interactions. Here we review the literature demonstrating that cross-species miRNAs are consistently present in parasites or their hosts, and detail their functional responses in host defense or parasite survival and pathogenesis.
Insights
MicroRNAs (miRNAs) are exchanged between hosts and parasites, influencing disease dynamics. Understanding these cross-species interactions is crucial for controlling parasitic diseases.
Area of Science:
- Parasitology
- Molecular Biology
- Genomics
Background:
- Parasitic diseases pose significant global health challenges.
- Host-parasite interactions are critical for disease control.
- MicroRNAs (miRNAs) are key regulatory molecules in eukaryotes.
Purpose of the Study:
- To review the literature on cross-species miRNA exchange in host-parasite systems.
- To elucidate the functional roles of these exchanged miRNAs.
- To highlight the importance of miRNAs in host defense and parasite pathogenesis.
Main Methods:
- Literature review of studies investigating miRNA presence and function.
- Analysis of documented cases of cross-species miRNA exchange.
- Synthesis of findings on miRNA roles in host-parasite interactions.
Main Results:
- Cross-species miRNAs are frequently detected in both parasites and their hosts.
- These exchanged miRNAs demonstrably impact host defense mechanisms.
- miRNAs play a role in parasite survival and the development of pathogenesis.
Conclusions:
- Cross-species miRNA exchange is a common phenomenon in host-parasite interactions.
- Understanding these molecular exchanges offers novel therapeutic targets.
- Targeting miRNA pathways could lead to effective strategies for controlling parasitic diseases.
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