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Published on: December 9, 2022
MicroRNA as Sepsis Biomarkers: A Comprehensive Review
1Department of Microbiology, Immunology and Infectious Diseases, College of Medicine & Medical Sciences, Arabian Gulf University, Manama P.O. Box 26671, Bahrain.
Abstract:
Sepsis, a life-threatening condition caused by the body's dysregulated response to infection, presents a significant challenge in clinical management. Timely and accurate diagnosis is paramount for initiating appropriate interventions and improving patient outcomes. In recent years, there has been growing interest in identifying biomarkers that can aid in the early detection and prognostication of sepsis. MicroRNAs (miRNAs) have emerged as potential biomarkers for sepsis due to their involvement in the regulation of gene expression and their stability in various biological fluids, including blood. MiRNAs are small non-coding RNA molecules that play crucial roles in post-transcriptional gene regulation by binding to target messenger RNAs (mRNAs), leading to mRNA degradation or translational repression. The diagnostic and prognostic potential of miRNAs in sepsis stems from their ability to serve as sensitive and specific biomarkers reflective of the underlying pathophysiological processes. Compared to traditional biomarkers such as C-reactive protein (CRP) and procalcitonin (PCT), miRNAs offer several advantages, including their early and sustained elevation during sepsis, as well as their stability in stored samples, making them attractive candidates for clinical use. However, despite their promise, the clinical translation of miRNAs as sepsis biomarkers faces several challenges. These include the need for standardized sample collection and processing methods, the identification of optimal miRNA panels or signatures for differentiating sepsis from other inflammatory conditions, and the validation of findings across diverse patient populations and clinical settings. In conclusion, miRNAs hold great promise as diagnostic and prognostic biomarkers for sepsis, offering insights into the underlying molecular mechanisms and potential therapeutic targets. However, further research is needed to overcome existing challenges and realize the full clinical utility of miRNAs in improving sepsis outcomes.
Insights
MicroRNAs (miRNAs) show promise as early sepsis biomarkers, offering advantages over traditional markers. Further research is needed to overcome challenges for clinical use in sepsis diagnosis and prognosis.
Area of Science:
- Biochemistry
- Molecular Biology
- Clinical Diagnostics
Background:
- Sepsis diagnosis is critical for patient outcomes.
- Traditional biomarkers like CRP and PCT have limitations.
- MicroRNAs (miRNAs) are emerging as potential sepsis biomarkers.
Purpose of the Study:
- To explore the diagnostic and prognostic potential of miRNAs in sepsis.
- To compare miRNAs with traditional sepsis biomarkers.
- To identify challenges in the clinical translation of miRNA biomarkers.
Main Methods:
- Review of current research on miRNA biomarkers in sepsis.
- Analysis of miRNA roles in gene regulation and sepsis pathophysiology.
- Comparison of miRNA stability and expression patterns with CRP and PCT.
Main Results:
- MiRNAs are involved in regulating gene expression relevant to sepsis.
- MiRNAs demonstrate early and sustained elevation in sepsis.
- MiRNAs are stable in biological fluids, offering advantages over CRP and PCT.
Conclusions:
- MiRNAs hold significant promise as sensitive and specific sepsis biomarkers.
- Standardization, optimal panel identification, and validation are crucial for clinical adoption.
- Further research is essential to realize the full clinical utility of miRNAs in sepsis management.
