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Characterization of Functionally Associated miRNAs in Glioblastoma and their Engineering into Artificial Clusters for Gene Therapy
Published on: October 4, 2019
The landscape of circRNAs in gliomas temozolomide resistance: Insights into molecular pathways
Alireza Mafi1,2, Neda Hedayati3, Samaneh Kahkesh4
1Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
Abstract:
As the deadliest type of primary brain tumor, gliomas represent a significant worldwide health concern. Circular RNA (circRNA), a unique non-coding RNA molecule, seems to be one of the most alluring target molecules involved in the pathophysiology of many kinds of cancers. CircRNAs have been identified as prospective targets and biomarkers for the diagnosis and treatment of numerous disorders, particularly malignancies. Recent research has established a clinical link between temozolomide (TMZ) resistance and certain circRNA dysregulations in glioma tumors. CircRNAs may play a therapeutic role in controlling or overcoming TMZ resistance in gliomas and may provide guidance for a novel kind of individualized glioma therapy. To address the biological characteristics of circRNAs and their potential to induce resistance to TMZ, this review has highlighted and summarized the possible roles that circRNAs may play in molecular pathways of drug resistance, including the Ras/Raf/ERK PI3K/Akt signaling pathway and metabolic processes in gliomas.
Insights
Circular RNAs (circRNAs) are linked to temozolomide (TMZ) resistance in glioma. Targeting circRNAs may offer new strategies to overcome drug resistance and improve glioma treatment.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Gliomas are aggressive primary brain tumors with significant global health impact.
- Circular RNAs (circRNAs) are emerging as key players in cancer development and progression.
- Dysregulation of specific circRNAs is increasingly associated with temozolomide (TMZ) resistance in glioma.
Purpose of the Study:
- To review the biological characteristics of circRNAs in glioma.
- To explore the role of circRNAs in mediating temozolomide (TMZ) resistance.
- To identify potential therapeutic strategies targeting circRNAs for overcoming TMZ resistance in gliomas.
Main Methods:
- Literature review of recent studies on circRNAs and glioma.
- Analysis of circRNA involvement in molecular pathways related to drug resistance.
- Summary of circRNA's potential role in signaling pathways (e.g., Ras/Raf/ERK, PI3K/Akt) and metabolic processes.
Main Results:
- Specific circRNA dysregulations are clinically linked to temozolomide (TMZ) resistance in glioma.
- CircRNAs can influence molecular pathways crucial for drug resistance.
- CircRNAs are implicated in modulating metabolic processes within glioma cells.
Conclusions:
- CircRNAs represent promising biomarkers for glioma diagnosis and prognosis.
- Targeting circRNAs offers a potential therapeutic avenue to overcome temozolomide (TMZ) resistance.
- CircRNA-based strategies could lead to novel, individualized glioma therapies.
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