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Host non-coding RNAs orchestrate antiviral defense and are targeted by viral counter-defense strategiesHost molecules may help the body fight off common viruses
Frontiers in MedicinePublished September 15, 2026Study authors: Na Chen, Baoge Zhang, Xiaoyong Chen, Haiyan Zhang, Ziding YuDOI ↗Editorial oversight: Dr. Amelia Tan, PhD · Internal Medicine & Chronic Disease
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Key Takeaway
Note that host ncRNAs orchestrate antiviral defenses but are also targets for viral evasion and hijacking.
This systematic review synthesizes the roles of host non-coding RNAs (ncRNAs), including miRNAs, lncRNAs, circRNAs, and vtRNAs, in the context of various viral infections including Influenza A, Dengue, Hepatitis C, Zika, HIV-1, and SARS-CoV-2. The authors conclude that host ncRNAs dynamically modulate the expression of distinct factors, including host restriction factors, micropeptides, and lipids, to target proviral host factors.
Furthermore, the review highlights that ncRNAs orchestrate critical antiviral innate immune signaling pathways, viral replication cycles, autophagy, apoptosis, metabolic reprogramming, and stress granule formation. Conversely, the authors note that these viruses have evolved specific strategies to hijack host ncRNA networks to antagonize these host defenses.
Limitations noted by the authors include the fact that current studies on ncRNA-virus interactions are generally fragmented. While the findings provide a theoretical basis for the development of host ncRNA-based antiviral drugs, the evidence is currently insufficient to support immediate clinical application. The results should be viewed as a foundational framework for future therapeutic development rather than a guide for immediate clinical intervention.
How this fits prior evidence
This systematic review addresses a gap in understanding the molecular mechanisms of host defense. While previous coverage noted that HIV-2 infection is associated with lower viral loads and slower progression than HIV-1, this review focuses on the underlying ncRNA mechanisms that govern such viral interactions. It also provides a theoretical framework for addressing the mechanisms of Zika virus infection, which was previously noted in a preliminary report regarding prenatal exposure and autism spectrum disorder.
When a virus like the flu or COVID-19 enters your body, it starts a battle against your immune system. Research shows that your body uses specific molecules called non-coding RNAs to fight back. These molecules act like a control center, managing your immune signals and trying to stop the virus from multiplying.
These non-coding RNAs work in several ways. They can block the virus from using your cells, trigger cell death for infected cells, and change your metabolism to prioritize defense. However, viruses are smart. They have evolved their own ways to hijack these same systems to bypass your defenses and keep spreading.
Because these molecules are so central to how your body reacts to infections like Hepatitis C and Zika, they offer a potential path for new medicines. While current research on these interactions is still fragmented and incomplete, these findings provide a theoretical starting point for creating new ways to stop viral infections.
What this means for you:
Non-coding RNAs are key players in your body's defense against viruses like flu, COVID-19, and Zika.
Common questions
What are non-coding RNAs and how do they work?
Non-coding RNAs are molecules that do not make proteins but act as a control system for your cells. They help your body fight viruses like the flu, Zika, and COVID-19 by managing immune signals, controlling how cells break down, and changing your metabolism to stop the virus from spreading.
Can these molecules be used to make new medicines?
Yes, these molecules provide a theoretical basis for creating new antiviral drugs. Because they are so involved in how your body fights infections like Hepatitis C and HIV-1, they could eventually help develop new ways to stop these viruses from multiplying.
Do viruses have ways to fight back against these defenses?
Yes, viruses like the flu, Zika, and COVID-19 have evolved strategies to hijack your body's non-coding RNA networks. They do this to bypass your immune system and continue to replicate inside your cells.
Viral infectious diseases pose serious threats to global public health. Host non-coding RNAs (ncRNAs), including miRNAs, lncRNAs, circRNAs, and vtRNAs, act as master regulators of host antiviral defense and viral replication. Current studies on ncRNA-virus interactions are generally fragmented, and most reviews focus on a single virus or a single class of ncRNAs, without combining ncRNA expression dynamics with their biological functions for systematic collation. Herein, we establish a novel four-category classification framework based on ncRNA expression patterns and functional characteristics upon viral infection. To counteract viral infections, the host dynamically modulates the expression of distinct ncRNAs to target proviral host factors, host restriction factors, other ncRNAs, micropeptides, and lipids, thereby orchestrating antiviral innate immune signaling pathways, viral replication cycles, autophagy, apoptosis, metabolic reprogramming, and stress granule formation to establish a multilayered antiviral defense system. Concurrently, representative viruses posing severe threats to global public health, including IAV, DENV, HCV, ZIKV, HIV-1, and SARS-CoV-2, have evolved sophisticated strategies to hijack host ncRNA networks and antagonize host antiviral defenses. This review systematically summarizes and elaborates the conserved regulatory principles of various ncRNAs in the host antiviral response, clarifies the molecular mechanisms by which viruses hijack and antagonize host ncRNAs, further refines the theoretical framework of host ncRNA-virus interactions centered on viral replication regulation, discusses the future research directions under this system, and thus provides a theoretical basis for the development of host ncRNA-based antiviral drugs.
