Related Experiment Video
Updated: Mar 14, 2026

Molecular Analysis of Endothelial-mesenchymal Transition Induced by Transforming Growth Factor-β Signaling
Published on: August 3, 2018
Regulatory Mechanisms of the Molecular Pathways in Fibrosis Induced by MicroRNAs
Cui Yang1, Si-Dao Zheng2, Hong-Jin Wu3
1Department of Cardiology, Huairou Hospital of Traditional Chinese Medicine, Beijing 101400, China.
Objective:
MicroRNAs (miRNAs or miRs) play critical roles in the fibrotic process in different organs. We summarized the latest research progress on the roles and mechanisms of miRNAs in the regulation of the molecular signaling pathways involved in fibrosis.
Data Sources:
Papers published in English from January 2010 to August 2015 were selected from the PubMed and Web of Science databases using the search terms "microRNA", "miR", "transforming growth factor β", "tgf β", "mitogen-activated protein kinase", "mapk", "integrin", "p38", "c-Jun NH2-terminal kinase", "jnk", "extracellular signal-regulated kinase", "erk", and "fibrosis".
Study Selection:
Articles were obtained and reviewed to analyze the regulatory effects of miRNAs on molecular signaling pathways involved in the fibrosis.
Results:
Recent evidence has shown that miRNAs are involved in regulating fibrosis by targeting different substrates in the molecular processes that drive fibrosis, such as immune cell sensitization, effector cell activation, and extracellular matrix remodeling. Moreover, several important molecular signaling pathways involve in fibrosis, such as the transforming growth factor-beta (TGF-β) pathway, mitogen-activated protein kinase (MAPK) pathways, and the integrin pathway are regulated by miRNAs. Third, regulation of the fibrotic pathways induced by miRNAs is found in many other tissues in addition to the heart, lung, liver, and kidney. Interestingly, the actions of many drugs on the human body are also induced by miRNAs. It is encouraging that the fibrotic process can be blocked or reversed by targeting specific miRNAs and their signaling pathways, thereby protecting the structures and functions of different organs.
Conclusions:
miRNAs not only regulate molecular signaling pathways in fibrosis but also serve as potential targets of novel therapeutic interventions for fibrosing diseases.
Insights
MicroRNAs (miRNAs) regulate fibrotic processes by targeting key signaling pathways. Targeting miRNAs offers promising therapeutic strategies for fibrotic diseases.
Area of Science:
- Molecular Biology
- Cell Biology
- Biochemistry
Background:
- MicroRNAs (miRNAs) are crucial regulators in various biological processes.
- Fibrosis, a pathological hallmark of many diseases, involves complex molecular signaling.
- Dysregulation of miRNAs is implicated in the development and progression of fibrotic diseases.
Purpose of the Study:
- To summarize recent research on the roles and mechanisms of miRNAs in regulating molecular signaling pathways in fibrosis.
- To explore the therapeutic potential of targeting miRNAs for fibrotic diseases.
Main Methods:
- Literature search of PubMed and Web of Science databases (2010-2015).
- Keywords included "microRNA", "miR", "TGF-β", "MAPK", "integrin", and "fibrosis".
- Review and analysis of selected articles on miRNA regulation of fibrotic pathways.
Main Results:
- miRNAs regulate fibrosis by targeting substrates in immune cell sensitization, effector cell activation, and extracellular matrix remodeling.
- Key fibrotic signaling pathways, including TGF-β, MAPK, and integrin pathways, are miRNA-regulated.
- miRNA-mediated regulation of fibrosis occurs in multiple organs (heart, lung, liver, kidney) and influences drug actions.
- Targeting specific miRNAs and pathways can block or reverse fibrosis, protecting organ structure and function.
Conclusions:
- miRNAs are key regulators of molecular signaling pathways in fibrosis.
- miRNAs represent promising therapeutic targets for novel interventions in fibrosing diseases.
Related Concept Videos
MicroRNAs
MicroRNAs
MicroRNAs
Interactions Between Signaling Pathways
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
TGF - β Signaling Pathway

