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Updated: Jun 10, 2025

An In Vitro Protocol for Evaluating MicroRNA Levels, Functions, and Associated Target Genes in Tumor Cells
Published on: May 21, 2019
Exosomal microRNA as a key regulator of PI3K/AKT pathways in human tumors
Saade Abdalkareem Jasim1,2, Abdulrahman T Ahmed3, Aziz Kubaev4
1Medical Laboratory Techniques Department, Al-Maarif University College, Ramadi, Anbar, Iraq.
Abstract:
MicroRNAs (miRNAs) are conserved non-protein-coding RNAs that are naturally present in organisms and can control gene expression by suppressing the translation of mRNA or causing the degradation of mRNA. MicroRNAs are highly concentrated in the PI3K/AKT pathway, and abnormal activation of the PI3K/AKT pathway plays a role in cancer progression. The AKT/PI3K pathway is critical for cellular functions and can be stimulated by cytokines and in normal situations. It is involved in regulating various intracellular signal transduction, including development, differentiation, transcriptional regulation, protein, and synthesis. There is a growing body of evidence indicating that miRNAs, which are abundant in exosomes released by different cells, can control cellular biological activities via modulating the PI3K/AKT pathway, hence influencing cancer progression and drug resistance. This article provides an overview of the latest research progress regarding the function and medical use of the PI3K/AKT pathway and exosomal miRNA/AKT/PI3K axis in the behaviors of cancer cells.
Insights
MicroRNAs (miRNAs) regulate gene expression and are key in the PI3K/AKT pathway, influencing cancer. Exosomal miRNAs modulate this axis, impacting cancer progression and drug resistance.
Area of Science:
- Molecular Biology
- Oncology
- Biochemistry
Background:
- MicroRNAs (miRNAs) are non-coding RNAs regulating gene expression by targeting mRNA.
- The PI3K/AKT pathway is crucial for cellular functions and its aberrant activation is linked to cancer progression.
- Exosomes contain miRNAs that can influence cellular activities and cancer development.
Purpose of the Study:
- To provide an overview of the PI3K/AKT pathway and exosomal miRNA roles in cancer.
- To explore the function and medical applications of the exosomal miRNA/AKT/PI3K axis in cancer biology.
Main Methods:
- Literature review of recent research on miRNAs, the PI3K/AKT pathway, and exosomes in cancer.
- Analysis of the regulatory mechanisms of exosomal miRNAs on the PI3K/AKT pathway.
- Synthesis of information on the implications for cancer progression and drug resistance.
Main Results:
- MiRNAs are concentrated in the PI3K/AKT pathway, affecting gene expression.
- Exosomal miRNAs can modulate the PI3K/AKT pathway, influencing cancer cell behavior.
- The exosomal miRNA/AKT/PI3K axis is implicated in cancer progression and drug resistance.
Conclusions:
- The PI3K/AKT pathway is a critical regulator of cellular functions and cancer.
- Exosomal miRNAs play a significant role in cancer by modulating the PI3K/AKT pathway.
- Targeting the exosomal miRNA/AKT/PI3K axis holds potential for cancer therapy and overcoming drug resistance.
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