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Classification of heterogeneous genetic variations of microRNA regulome in cancer
1Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Slovenia.
Abstract:
Genetic variations and differential expression of miRNA regulome components are associated with cancer. Thus miRNA based diagnosis and treatments have been proposed. However, to better explore these options, the molecular changes in miRNA regulome must be understood. MicroRNAs can be involved in regulation of oncogenes and tumour suppressors. As each miRNA targets broad range of genes, minor changes in miRNAs can have great effects, contributing to cell transformation. Many genetic variants of miRNA regulome have been reported to be associated with cancer, but this information needs to be systematized. Therefore, we here classify different types of genetic variations of miRNA regulome in cancer. Genetic variations are comprised of structural and short polymorphisms and changes in epigenetic landscape. Additionally, unexplained differential expression is often reported. These alterations affect miRNA genes and their regulatory elements, processing machinery, degradation machinery, and targets, leading to changes in miRNA silencing. However, miRNA regulome components are not equally explored. A systematic overview over miRNA regulome can contribute to more targeted study design and understanding of miRNA function. We also present treatments and diagnosis based on miRNA regulome genetic variability and expression.
Insights
Genetic variations in microRNA (miRNA) regulome impact cancer development. This study systematizes these variations and their role in cancer, aiding in developing new miRNA-based diagnostics and treatments.
Area of Science:
- Molecular Biology
- Genetics
- Oncology
Background:
- MicroRNA (miRNA) regulome alterations are linked to cancer.
- miRNAs regulate oncogenes and tumor suppressors, influencing cell transformation.
- Understanding miRNA molecular changes is crucial for cancer diagnosis and treatment.
Purpose of the Study:
- To classify genetic variations in the miRNA regulome associated with cancer.
- To provide a systematic overview of miRNA regulome alterations.
- To present miRNA-based diagnostic and treatment strategies.
Main Methods:
- Classification of genetic variations including structural polymorphisms, short polymorphisms, and epigenetic changes.
- Analysis of alterations affecting miRNA genes, regulatory elements, processing, degradation, and targets.
- Review of existing literature on miRNA regulome variations in cancer.
Main Results:
- Genetic variations in the miRNA regulome encompass structural and short polymorphisms, and epigenetic modifications.
- These alterations impact miRNA silencing by affecting various components of the miRNA pathway.
- Differential expression of miRNA regulome components is frequently observed in cancer.
Conclusions:
- Systematic classification of miRNA regulome variations is essential for targeted research and understanding miRNA function in cancer.
- Genetic variability and expression patterns of the miRNA regulome offer potential for novel cancer diagnostics and therapeutics.
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