Role of redoximiRs in fibrogenesis
Marta Fierro-Fernández1, Verónica Miguel1, Santiago Lamas1
1Department of Cell Biology and Immunology, Centro de Biología Molecular "Severo Ochoa" (CBMSO), Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid, Nicolás Cabrera 1, 28049 Madrid, Spain.
Abstract:
Fibrosis can be defined as an excessive accumulation of extracellular matrix (ECM) components, ultimately leading to stiffness, scarring and devitalized tissue. MicroRNAs (miRNAs) are short, 19-25 nucleotides (nt), non-coding RNAs involved in the post-transcriptional regulation of gene expression. Recently, miRNAs have also emerged as powerful regulators of fibrotic processes and have been termed "fibromiRs". Oxidative stress represents a self-perpetuating mechanism in fibrogenesis. MiRNAs can also influence the expression of genes responsible for the generation of reactive oxygen species (ROS) and antioxidant defence and are termed "redoximiRs". Here, we review the current knowledge of mechanisms by which "redoximiRs" regulate fibrogenesis. This new set of miRNAs may be called "redoxifibromiRs".
Insights
Fibrosis involves excessive extracellular matrix buildup. New research explores how microRNAs (miRNAs) regulating oxidative stress, termed "redoxifibromiRs," impact fibrotic processes.
Area of Science:
- Biochemistry
- Molecular Biology
- Genetics
Background:
- Fibrosis is characterized by excessive extracellular matrix accumulation, leading to tissue scarring and dysfunction.
- MicroRNAs (miRNAs) are key regulators of gene expression, influencing various biological processes.
- Oxidative stress is a critical factor in the progression of fibrotic diseases.
Purpose of the Study:
- To review the mechanisms through which specific microRNAs, termed "redoxifibromiRs," regulate fibrogenesis.
- To highlight the role of miRNAs in controlling oxidative stress pathways relevant to fibrosis.
- To introduce the concept of "redoxifibromiRs" as a novel class of fibromiRs.
Main Methods:
- Literature review of studies on microRNAs, fibrosis, and oxidative stress.
- Analysis of miRNA-mediated regulation of genes involved in reactive oxygen species (ROS) production and antioxidant defense.
- Synthesis of current knowledge on the interplay between redox signaling and fibrotic pathways.
Main Results:
- MicroRNAs (miRNAs) act as potent regulators of fibrotic processes, known as "fibromiRs."
- Specific miRNAs, termed "redoximiRs," modulate the expression of genes related to oxidative stress.
- These "redoximiRs" are implicated in the self-perpetuating mechanisms of fibrogenesis.
Conclusions:
- "RedoxifibromiRs" represent a newly identified class of microRNAs that bridge redox regulation and fibrosis.
- Understanding "redoxifibromiRs" offers potential therapeutic targets for treating fibrotic diseases.
- Targeting these "redoxifibromiRs" could disrupt the link between oxidative stress and excessive matrix deposition in fibrosis.
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