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Updated: Apr 22, 2026

Induction and Analysis of Epithelial to Mesenchymal Transition
Published on: August 27, 2013
MicroRNAs regulate the epithelial to mesenchymal transition (EMT) in cancer progression
Abstract:
MicroRNAs (miRNAs) are a class of small noncoding RNAs that regulate gene expression by targeting mRNAs and leading to either translation repression or RNA degradation. miRNAs have fundamental effects in the regulation of intracellular processes, and their importance during malignant transformation and metastasis is becoming increasingly well understood. The epithelial-mesenchymal transition (EMT), which reprograms tumor cells transcription, has been highlighted as a powerful process in tumor invasion, metastasis and tumorigenicity. In recent years, many studies have significantly enhanced our knowledge of EMT by the characterization of miRNAs that influence the signaling pathways and downstream events that define EMT on a molecular level. In this review, we detail the miRNAs and signal transduction pathways involved in the EMT process and demonstrate their importance in the study of cancer progression. We believe that this information will improve prognostication and reveal new opportunities for therapeutic intervention.
Insights
MicroRNAs (miRNAs) regulate gene expression and are crucial in cancer progression. This review details how miRNAs influence the epithelial-mesenchymal transition (EMT), impacting tumor invasion and metastasis for better cancer prognostication and therapy.
Area of Science:
- Molecular Biology
- Genetics
- Oncology
Background:
- MicroRNAs (miRNAs) are small noncoding RNAs regulating gene expression post-transcriptionally.
- miRNAs play critical roles in cellular processes, including cancer development and spread.
- The epithelial-mesenchymal transition (EMT) is a key process in tumor invasion and metastasis.
Purpose of the Study:
- To review the role of miRNAs in regulating the epithelial-mesenchymal transition (EMT).
- To highlight the importance of miRNA-mediated EMT in cancer progression.
- To identify potential therapeutic targets and improve cancer prognostication.
Main Methods:
- Literature review of studies on miRNAs, EMT, and cancer.
- Analysis of signaling pathways and molecular events influenced by miRNAs during EMT.
- Synthesis of current knowledge on miRNA involvement in cancer metastasis.
Main Results:
- miRNAs significantly influence the molecular pathways defining EMT.
- Specific miRNAs have been identified that promote or inhibit EMT.
- Dysregulation of miRNAs is linked to increased tumor invasion and metastasis.
Conclusions:
- miRNAs are critical regulators of EMT and cancer progression.
- Understanding miRNA-EMT interactions offers new avenues for cancer therapy.
- miRNA profiling may enhance cancer prognostication and treatment strategies.
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