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The Roles of circMTO1 in Cancer
Wei Liu1, Yuanyuan Xiong1, Renhua Wan1
1Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China.
Abstract:
Circular RNAs (circRNAs) are a recently discovered type of covalently-closed circular non-coding RNAs, mainly formed by non-sequential back-splicing of precursor mRNAs (pre-mRNAs). Recent studies have demonstrated that circRNAs can have either oncogenic or tumor-suppressor roles depending on the cellular context. CircRNA mitochondrial tRNA translation optimization 1 (circMTO1), a recently reported circular RNA originating from exons of MTO1 located on chromosome 6q13, was proved to be abnormally expressed in many malignant tumors, such as hepatocellular carcinoma, gastric carcinoma and colorectal cancer, resulting in tumor initiation and progression. However, there are no reviews focusing on the roles of circMTO1 in cancer. Here, we first summarize the main biological characteristics of circMTO1, and then focus on its biological functions and the possible underlying molecular mechanisms. Finally, we summarize the roles of circMTO1 in cancer and discuss future prospects in this area of research.
Insights
Circular RNA mitochondrial tRNA translation optimization 1 (circMTO1) plays a key role in various cancers. This review details circMTO1
Area of Science:
- Molecular Biology
- Genetics
- Oncology
Background:
- Circular RNAs (circRNAs) are novel non-coding RNAs with diverse cellular functions.
- circRNAs can act as oncogenes or tumor suppressors based on cellular context.
- circRNA mitochondrial tRNA translation optimization 1 (circMTO1) is implicated in various malignancies.
Purpose of the Study:
- To review the biological characteristics, functions, and molecular mechanisms of circMTO1.
- To summarize the roles of circMTO1 in cancer initiation and progression.
- To discuss future research directions for circMTO1 in oncology.
Main Methods:
- Literature review of studies on circMTO1.
- Analysis of circMTO1 expression patterns in different cancers.
- Investigation of molecular mechanisms underlying circMTO1's function.
Main Results:
- circMTO1 is abnormally expressed in hepatocellular carcinoma, gastric cancer, and colorectal cancer.
- circMTO1 contributes to tumor initiation and progression.
- Specific molecular mechanisms of circMTO1 in cancer are elucidated.
Conclusions:
- circMTO1 is a significant factor in cancer development.
- Understanding circMTO1's roles offers potential therapeutic strategies.
- Further research is warranted to explore circMTO1's full potential in cancer treatment.
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