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Updated: Aug 15, 2025

Analysis of Combinatorial miRNA Treatments to Regulate Cell Cycle and Angiogenesis
Published on: March 30, 2019
The role of microRNA-induced apoptosis in diverse radioresistant cancers
Leili Darvish1, Mohammad Taghi Bahreyni Toossi2, Hosein Azimian3
1Department of Medical Physics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Abstract:
Resistance to cancer radiotherapy is one of the biggest concerns for success in treating and preventing recurrent disease. Malignant tumors may develop when they block genetic mutations associated with apoptosis or abnormal expression of apoptosis; Tumor treatment may induce the expression of apoptosis-related genes to promote tumor cell apoptosis. MicroRNAs have been shown to contribute to forecasting prognosis, distinguishing between cancer subtypes, and affecting treatment outcomes in cancer. Constraining these miRNAs may be an attractive treatment strategy to help overcome radiation resistance. The delivery of these future treatments is still challenging due to the excess downstream targets that each miRNA can control. Understanding the role of miRNAs brings us one step closer to attaining patient treatment and improving patient outcomes. This review summarized the current information on the role of microRNA-induced apoptosis in determining the radiosensitivity of various cancers.
Insights
MicroRNAs (miRNAs) influence cancer cell apoptosis and radiosensitivity. Targeting miRNAs offers a potential strategy to overcome cancer radiation resistance and improve patient outcomes.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Cancer radiotherapy resistance is a major obstacle in cancer treatment and prevention of recurrence.
- Tumor cells can evade apoptosis through genetic mutations or altered gene expression, impacting treatment efficacy.
- MicroRNAs (miRNAs) play crucial roles in cancer prognosis, subtyping, and response to therapy.
Approach:
- This review synthesizes current research on the involvement of microRNA-induced apoptosis in cancer radiosensitivity.
- It explores how miRNAs modulate apoptosis pathways relevant to radiation response.
- The challenges in therapeutic delivery of miRNA-based treatments are also discussed.
Key Points:
- MicroRNAs can significantly impact cancer cell apoptosis, thereby influencing radiosensitivity.
- Modulating miRNA expression presents a potential therapeutic avenue to sensitize tumors to radiotherapy.
- Understanding miRNA functions is key to developing novel cancer treatment strategies.
Conclusions:
- MicroRNA-mediated apoptosis is a critical determinant of radiosensitivity across various cancer types.
- Targeting specific miRNAs could be a promising strategy to overcome treatment resistance.
- Further research into miRNA mechanisms and delivery is essential for clinical translation.
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