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Updated: Sep 14, 2025
Characterization of Functionally Associated miRNAs in Glioblastoma and their Engineering into Artificial Clusters for Gene Therapy
Published on: October 4, 2019
Molecular insight into the therapeutic potential of miR-34a in retinoblastoma
Pouya Goleij1,2, Mohammad Amin Khazeei Tabari3, Aryan Rezaee4
1USERN Office, Kermanshah University of Medical Sciences, Kermanshah, 6715847141, Iran. medgenetic.1991@gmail.com.
Abstract:
Retinoblastoma (RB) is the predominant type of eye cancer in children, particularly affecting those under three. Early diagnosis is crucial as RB can be fatal if left untreated. MicroRNAs (miRNAs), non-coding RNAs, have emerged as significant regulators of various cellular processes and are increasingly recognized for their influence on RB development and treatment resistance. Dysregulation of miR-34a expression has been implicated in various aspects of tumorigenesis, including processes critical for cancer progression: epithelial-mesenchymal transition (EMT) within the tumor, invasive growth, and metastasis. Furthermore, a deeper understanding of the molecular mechanisms underlying miR-34a function in RB is crucial for the development of effective diagnostic tools and therapeutic strategies. The abundance of miR-34a is further fine-tuned through context-dependent feedback loops. This review comprehensively examines the current understanding of miR-34a's functions in various human diseases. We focus on how miR-34a expression is regulated and disrupted, its involvement in human cancers specifically RB, and its potential as a biomarker for disease diagnosis and prognosis. Additionally, we explore the potential of miR-34a as a novel therapeutic target in RB.
Insights
MicroRNAs (miRNAs), specifically miR-34a, play a key role in childhood eye cancer (retinoblastoma). Understanding miR-34a
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Retinoblastoma (RB) is the most common pediatric eye cancer, primarily affecting children under three.
- Early diagnosis and treatment are critical for survival in RB cases.
- MicroRNAs (miRNAs) are non-coding RNAs that regulate cellular processes and are implicated in cancer development and treatment resistance.
Purpose of the Study:
- To review the current understanding of miR-34a's functions in human diseases, with a specific focus on retinoblastoma.
- To examine the regulation and disruption of miR-34a expression in cancer.
- To explore the potential of miR-34a as a diagnostic biomarker and therapeutic target for RB.
Main Methods:
- Comprehensive literature review of studies on miR-34a and its role in human diseases, particularly retinoblastoma.
- Analysis of molecular mechanisms underlying miR-34a function in tumorigenesis, including epithelial-mesenchymal transition (EMT), invasion, and metastasis.
- Evaluation of miR-34a's potential as a biomarker for diagnosis and prognosis in RB.
Main Results:
- Dysregulation of miR-34a expression is linked to key cancer progression processes such as EMT, invasion, and metastasis in RB.
- miR-34a abundance is modulated by context-dependent feedback loops.
- miR-34a shows potential as a biomarker for RB diagnosis and prognosis.
Conclusions:
- miR-34a is a significant regulator in retinoblastoma development and progression.
- Further understanding of miR-34a's molecular mechanisms is essential for developing novel diagnostic and therapeutic strategies for RB.
- miR-34a represents a promising therapeutic target for retinoblastoma treatment.
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