MicroRNAs-mediated epithelial-mesenchymal transition in fibrotic diseases

Area of Science:

• Molecular Biology
• Genetics
• Pathology

Background:

• MicroRNAs (miRNAs) are small non-coding RNAs regulating gene expression.
• Aberrant miRNA expression is linked to various diseases, including organ fibrosis.
• miRNAs are increasingly recognized for their role in mediating epithelial-mesenchymal transition (EMT), a key process in fibrosis.

Purpose of the Study:

• To review the current understanding of how miRNAs regulate EMT.
• To highlight the specific roles of miRNA-regulated EMT in diverse fibrotic diseases.
• To underscore the potential of targeting miRNA-regulated EMT for therapeutic development.

Main Methods:

• Literature review of studies on miRNAs, EMT, and organ fibrosis.
• Synthesis of evidence linking miRNA function to EMT pathways.
• Analysis of miRNA involvement across different fibrotic conditions (pulmonary, hepatic, renal, cardiac).

Main Results:

• miRNAs modulate EMT by affecting ligands, receptors, and signaling pathways.
• miRNA-regulated EMT is a significant contributor to pulmonary, hepatic, renal, and cardiac fibrosis.
• Specific miRNAs have been identified that promote or inhibit EMT in fibrotic contexts.

Conclusions:

• miRNA-regulated EMT is a critical mechanism in the pathogenesis of organ fibrosis.
• Targeting specific miRNAs or their downstream effects on EMT presents a promising therapeutic strategy.
• Further research into miRNA-regulated EMT could lead to novel diagnostic and therapeutic tools for fibrotic diseases.