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Updated: Jun 17, 2025
Bronchoalveolar Lavage Exosomes in Lipopolysaccharide-induced Septic Lung Injury
Published on: May 21, 2018
Exosome-Derived microRNA: Potential Target for Diagnosis and Treatment of Sepsis
Yujie Xiao1, Yixuan Yuan1, Dahai Hu1
1Department of Burns and Cutaneous Surgery Xijing Hospital Fourth Military Medical University, 127 West Chang-le Road, Xi'an 710032, Shaanxi, China.
Abstract:
Exosome-derived microRNAs (miRNAs) are emerging as pivotal players in the pathophysiology of sepsis, representing a new frontier in both the diagnosis and treatment of this complex condition. Sepsis, a severe systemic response to infection, involves intricate immune and nonimmune mechanisms, where exosome-mediated communication can significantly influence disease progression and outcomes. During the progress of sepsis, the miRNA profile of exosomes undergoes notable alterations, is reflecting, and may affect the progression of the disease. This review comprehensively explores the biology of exosome-derived miRNAs, which originate from both immune cells (such as macrophages and dendritic cells) and nonimmune cells (such as endothelial and epithelial cells) and play a dynamic role in modulating pathways that affect the course of sepsis, including those related to inflammation, immune response, cell survival, and apoptosis. Taking into account these dynamic changes, we further discuss the potential of exosome-derived miRNAs as biomarkers for the early detection and prognosis of sepsis and advantages over traditional biomarkers due to their stability and specificity. Furthermore, this review evaluates exosome-based therapeutic miRNA delivery systems in sepsis, which may pave the way for targeted modulation of the septic response and personalized treatment options.
Insights
Exosome-derived microRNAs (miRNAs) are key in sepsis, influencing disease and offering new diagnostic and therapeutic avenues. These stable, specific biomarkers and delivery vehicles show promise for personalized sepsis treatment.
Area of Science:
- Biochemistry and Molecular Biology
- Immunology
- Pathophysiology
Background:
- Sepsis is a life-threatening systemic response to infection with complex immune and non-immune pathways.
- Exosomes, small vesicles released by cells, mediate intercellular communication and play a role in sepsis progression.
- Exosome-derived microRNAs (miRNAs) are significantly altered during sepsis, reflecting and potentially influencing disease course.
Purpose of the Study:
- To review the biology of exosome-derived miRNAs in sepsis.
- To explore their role in modulating sepsis-related pathways.
- To discuss their potential as diagnostic biomarkers and therapeutic agents.
Main Methods:
- Comprehensive literature review of exosome-derived miRNAs in sepsis.
- Analysis of miRNA alterations in exosomes during sepsis progression.
- Evaluation of exosome-mediated miRNA delivery systems for therapeutic applications.
Main Results:
- Exosome-derived miRNAs from immune and non-immune cells dynamically modulate sepsis pathways (inflammation, immune response, cell survival, apoptosis).
- Altered exosome-miRNA profiles serve as potential biomarkers for early sepsis detection and prognosis.
- Exosomes offer stable and specific advantages over traditional sepsis biomarkers.
Conclusions:
- Exosome-derived miRNAs are critical in sepsis pathophysiology, impacting disease progression.
- These miRNAs hold significant potential as reliable biomarkers for sepsis diagnosis and prognosis.
- Exosome-based miRNA therapeutics represent a promising strategy for targeted and personalized sepsis treatment.
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