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Review of ISG15 pathway targeting for inflammatory and cardiovascular diseases

Review of ISG15 pathway targeting for inflammatory and cardiovascular diseases
Photo by julien Tromeur / Unsplash
Key Takeaway
Note that targeting the ISG15 pathway shows potential for inflammatory diseases but requires further validation.

This publication is a narrative review focusing on the ISG15 pathway as a therapeutic target for various inflammatory conditions. The scope encompasses skin inflammation, cardiovascular inflammation, and neuroinflammation, though specific study populations, sample sizes, and intervention details are not reported in the source text. The authors synthesize existing literature to explore the biological rationale for this approach without presenting pooled effect sizes or specific trial outcomes.

The main argument presented is that targeting the ISG15 pathway represents a promising new strategy for managing inflammatory diseases. However, the review explicitly acknowledges significant limitations inherent to the current body of research. These gaps include a lack of comprehensive data on adverse events, tolerability, and definitive primary outcomes, which are not reported in the available studies.

Due to these limitations, the review does not establish causal relationships or confirm clinical efficacy. The authors caution that while the potential value is highlighted, the evidence is currently insufficient to support widespread adoption. Practice relevance is framed as an area for future investigation rather than an established standard of care, emphasizing the need for further high-quality research to validate these findings.

Study Details

Study typeSystematic review
EvidenceLevel 1
PublishedApr 2026
View Original Abstract ↓
Interferon-stimulated gene 15 (ISG15), a key ubiquitin-like modifying molecule, plays an important role in regulating inflammatory responses. This review summarizes the functions of ISG15 in different inflammatory diseases. On the one hand, ISG15 precisely regulates the activity of signaling proteins through its intracellular modification function, thereby affecting the type I interferon signaling pathway; on the other hand, free extracellular ISG15 can act as a cytokine, activating immune cells and exacerbating inflammatory responses. We further explored the specific mechanisms of ISG15 in skin inflammation, cardiovascular inflammation, neuroinflammation, and other types of inflammation and analyzed the limitations of current studies. Finally, this study highlights the potential value of targeting the ISG15 pathway as a new strategy for the treatment of inflammatory diseases.
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