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Published on: May 21, 2018
MicroRNA: Potential biomarker and target of therapy in acute lung injury
1Center of Emergency & Intensive Care Unit, Medical Center of Chemical Injury, Jinshan Hospital, Fudan University, Shanghai, People's Republic of China.
Abstract:
MicroRNAs (miRNAs) are small noncoding RNAs stretching over 18-22 nucleotides and considered to be modifiers of many respiratory diseases. They are highly evolutionary conserved and have been implicated in several biological processes, including cell proliferation, apoptosis, differentiation, among others. Acute lung injury (ALI) is a fatal disease commonly caused by direct or indirect injury factors and has a high mortality rate in intensive care unit. Changes in expression of several types of miRNAs have been reported in patients with ALI. Some miRNAs suppress cellular injury and accelerate the recovery of ALI by targeting specific molecules and decreasing excessive immune response. For this reason, miRNAs are proposed as potential biomarkers for ALI and as therapeutic targets for this disease. This review summarizes current evidence supporting the role of miRNAs in ALI.
Insights
MicroRNAs (miRNAs) are small molecules that play a key role in acute lung injury (ALI). These molecules may serve as biomarkers and therapeutic targets for improving patient outcomes in respiratory diseases.
Area of Science:
- Molecular Biology
- Genetics
- Respiratory Medicine
Background:
- MicroRNAs (miRNAs) are small, noncoding RNA molecules (18-22 nucleotides) involved in regulating gene expression.
- They are conserved across species and influence crucial biological processes like cell proliferation, apoptosis, and differentiation.
- Acute lung injury (ALI) is a severe respiratory condition with high mortality, often resulting from direct or indirect injury factors.
Purpose of the Study:
- To review the current evidence on the role of miRNAs in the pathogenesis and progression of ALI.
- To explore the potential of miRNAs as biomarkers for ALI diagnosis and prognosis.
- To discuss the therapeutic implications of targeting miRNAs for ALI treatment.
Main Methods:
- Literature review of studies investigating miRNA expression and function in ALI.
- Analysis of research on miRNA-mediated regulation of cellular processes relevant to ALI.
- Examination of data linking specific miRNAs to ALI development and recovery.
Main Results:
- Altered expression of various miRNAs has been observed in ALI patients.
- Certain miRNAs demonstrate protective effects by suppressing cellular injury and modulating immune responses in ALI.
- miRNAs target specific molecules involved in the pathophysiology of ALI.
Conclusions:
- miRNAs are significant regulators in the context of ALI.
- miRNAs hold promise as potential diagnostic biomarkers for ALI.
- Targeting miRNAs represents a viable therapeutic strategy for managing ALI and related respiratory diseases.
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