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Updated: Dec 7, 2025

miRNA Expression Analyses in Prostate Cancer Clinical Tissues
Published on: September 8, 2015
Prominent roles of microRNA-142 in cancer
Yasamin Pahlavan1, Mina Mohammadi Nasr2, Elaheh Dalir Abdolahinia3
1Deputy of Research and Technology, Ardabil University of Medical Sciences, Ardabil, Iran.
Abstract:
MicroRNAs (miRNAs) are single-stranded non-coding RNAs that regulate gene expression post-transcriptionally via mRNA degradation, or translational repression. They have important roles in normal development and homeostasis maintenance. Many studies have revealed that aberrant expression of miRNAs is associated with development of pathological conditions, including cancers. MiRNAs can either promote or suppress tumorigenesis based on the regulation of gene expression by targeting multiple molecules. In recent years, several miRNAs have been reported to be dysregulated in various cancers. Most recent findings have shown that miR-142 gene, located at chromosome 17q22, is involved in cellular migration, proliferation, and apoptosis in different human cancers. The present review discusses some molecular mechanisms and the expression status of miRNA-142 in the pathogenesis of various cancers.
Insights
MicroRNAs regulate gene expression and are vital for development. Aberrant microRNA expression, like miR-142, is linked to cancer development and progression, impacting cell migration and apoptosis.
Area of Science:
- Molecular Biology
- Genetics
- Oncology
Background:
- MicroRNAs (miRNAs) are non-coding RNAs regulating gene expression post-transcriptionally.
- Dysregulated miRNA expression is implicated in various pathological conditions, notably cancers.
- MiRNAs can act as either tumor suppressors or oncogenes depending on cellular context.
Purpose of the Study:
- To review the molecular mechanisms and expression status of miRNA-142.
- To elucidate the role of miRNA-142 in the pathogenesis of different human cancers.
Main Methods:
- Literature review of studies on miRNA-142.
- Analysis of miRNA-142 expression patterns in various cancer types.
- Discussion of molecular pathways targeted by miRNA-142.
Main Results:
- miR-142, located at chromosome 17q22, is frequently dysregulated in cancers.
- miR-142 influences key cellular processes including migration, proliferation, and apoptosis.
- Its specific role (oncogenic or tumor-suppressive) varies across different cancer types.
Conclusions:
- miR-142 is a significant player in cancer development and progression.
- Understanding miR-142's molecular functions is crucial for cancer research.
- Further investigation into miR-142's role may offer therapeutic insights.
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