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Updated: Jun 8, 2025

Genome-wide Screen for miRNA Targets Using the MISSION Target ID Library
Published on: April 6, 2012
Decoding the Promise and Challenges of miRNA-Based Cancer Therapies: An Essential Update on miR-21, miR-34, and
Hongbo Qian1, Mazaher Maghsoudloo2, Parham Jabbarzadeh Kaboli3
1Shulan International Medical College, Zhejiang Shuren University, Hangzhou, Zhejiang, China.
Abstract:
MicroRNAs (miRNAs)-based therapies hold great promise for cancer treatment, challenges such as expression variability, off-target effects, and limited clinical effectiveness have led to the withdrawal of many clinical trials. This review investigates the setbacks in miRNA-based therapies by examining miR-21, miR-34, and miR-155, highlighting their functional complexity, off-target effects, and the challenges in delivering these therapies effectively. Moreover, It highlights recent advances in delivery methods, combination therapies, and personalized treatment approaches to overcome these challenges. This review highlights the intricate molecular networks involving miRNAs, particularly their interactions with other non-coding RNAs, such as long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs), emphasizing the pivotal role of miRNAs in cancer biology and therapeutic strategies. By addressing these hurdles, this review aims to steer future research toward harnessing the potential of miRNA therapies to target cancer pathways effectively, enhance anti-tumor responses, and ultimately improve patient outcomes in precision cancer therapy.
Insights
MicroRNA (miRNA)-based cancer therapies face challenges like delivery and side effects. This review examines specific miRNAs and advances in overcoming these hurdles for better cancer treatment outcomes.
Area of Science:
- Oncology
- Molecular Biology
- Biotechnology
Background:
- MicroRNA (miRNA)-based therapies show promise for cancer treatment but face significant challenges.
- Expression variability, off-target effects, and delivery issues have led to clinical trial failures.
Purpose of the Study:
- To review the setbacks in miRNA-based cancer therapies, focusing on specific miRNAs (miR-21, miR-34, miR-155).
- To highlight advances in overcoming delivery, efficacy, and complexity challenges in miRNA therapeutics.
- To explore miRNA interactions with other non-coding RNAs (lncRNAs, circRNAs) in cancer.
Main Methods:
- Literature review of miRNA-based cancer therapies.
- Analysis of specific miRNA examples (miR-21, miR-34, miR-155) and their challenges.
- Examination of recent advances in delivery systems, combination therapies, and personalized approaches.
Main Results:
- Identified functional complexity and off-target effects as key hurdles for specific miRNAs.
- Highlighted challenges in effective delivery of miRNA therapeutics.
- Showcased progress in advanced delivery methods, combination strategies, and personalized medicine.
Conclusions:
- Overcoming challenges in miRNA expression, delivery, and off-target effects is crucial for therapeutic success.
- Understanding intricate miRNA interactions with other non-coding RNAs is vital for cancer biology.
- Future research should focus on advanced strategies to harness miRNA potential for effective cancer therapy and improved patient outcomes.
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