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Circular RNAs: Potential Regulators of Treatment Resistance in Human Cancers
Shivapriya Jeyaraman1, Ezanee Azlina Mohamad Hanif1, Nurul Syakima Ab Mutalib1
1UKM Medical Molecular Biology Institute (UMBI), UKM Medical Center, Kuala Lumpur, Malaysia.
Abstract:
Circular RNAs (circRNAs) which were once considered as "junk" are now in the spotlight as a potential player in regulating human diseases, especially cancer. With the development of high throughput technologies in recent years, the full potential of circRNAs is being uncovered. CircRNAs possess some unique characteristics and advantageous properties that could benefit medical research and clinical applications. CircRNAs are stable with covalently closed loops that are resistant to ribonucleases, have disease stage-specific expressions and are selectively abundant in different types of tissues. Interestingly, the presence of circRNAs in different types of treatment resistance in human cancers was recently observed with the involvement of a few key pathways. The activation of certain pathways by circRNAs may give new insights to treatment resistance management. The potential usage of circRNAs from this aspect is very much in its infancy stage and has not been fully validated. This mini-review attempts to highlight the possible role of circRNAs as regulators of treatment resistance in human cancers based on its intersection molecules and cancer-related regulatory networks.
Insights
Circular RNAs (circRNAs) are emerging as key regulators in human cancers, particularly in treatment resistance. Their unique stability and disease-specific expression offer new avenues for managing cancer therapy resistance.
Area of Science:
- Molecular Biology
- Oncology
- Genomics
Background:
- Circular RNAs (circRNAs) were initially dismissed as non-functional "junk" RNA.
- Recent advancements in high-throughput technologies have revealed their significant regulatory roles in human diseases, especially cancer.
- Unique properties like stability, disease-specific expression, and tissue abundance make circRNAs promising for medical applications.
Purpose of the Study:
- To review the emerging role of circular RNAs (circRNAs) in regulating treatment resistance in human cancers.
- To explore the potential of circRNAs in cancer therapy resistance management based on their molecular interactions and regulatory networks.
Main Methods:
- Literature review focusing on recent studies of circRNAs in cancer.
- Analysis of circRNA involvement in key pathways associated with treatment resistance.
- Examination of circRNA-disease associations and regulatory networks in cancer.
Main Results:
- Circular RNAs (circRNAs) are increasingly recognized for their involvement in various types of cancer treatment resistance.
- Specific pathways activated by circRNAs have been implicated in the development of resistance.
- The role of circRNAs in treatment resistance is a nascent field with significant potential for future validation.
Conclusions:
- Circular RNAs (circRNAs) show potential as regulators of cancer treatment resistance.
- Understanding circRNA mechanisms may offer novel strategies for overcoming treatment resistance in oncology.
- Further research is needed to fully validate the clinical utility of circRNAs in cancer therapy.
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Types of RNA
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
lncRNA - Long Non-coding RNAs
Negative Regulator Molecules

