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Published on: June 15, 2018
MicroRNA-21 as therapeutic target in cancer and cardiovascular disease
1Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore Sanità, Rome, Italy. desiree.bonci@iss.it
Abstract:
MicroRNAs (miRNAs) are a broad class of small non-coding RNAs that control expression of complementary target messenger RNAs. Dysregulation of miRNAs has been described in various disease states including cancer and cardiac disease. A particular miRNA that was consistently reported to be upregulated in both cancer and various forms of cardiovascular diseases is miR-21. MiR-21 exerts oncogenic activity and therefore is considered as an oncomir. In the cardiovascular system miR-21 is enriched in fibroblasts and contributes to the development of fibrosis and heart failure. MiR-21 therefore emerges as an interesting candidate for the development of therapeutic strategies against many forms of cancer as well as heart diseases. Indeed, treatment with anti-miR-21 oligonucleotides reduced breast cancer growth. Inhibition of miR-21 by synthetic miRNA antagonists (antagomirs) improved heart function in a cardiac disease model. The same beneficial effects were observed in miR-21 knockout mice subjected to pressure-overload of the left ventricle underlining the key role of miR-21 as a therapeutic target. We here overview the current patent situation about the therapeutic use of miR-21 modulation in cancer and cardiovascular disease.
Insights
MicroRNAs (miRNAs), specifically miR-21, are implicated in cancer and heart disease. Inhibiting miR-21 shows promise as a therapeutic strategy for both conditions.
Area of Science:
- Molecular Biology
- Genetics
- Biochemistry
Background:
- MicroRNAs (miRNAs) are small non-coding RNAs regulating gene expression.
- Dysregulated miRNAs are linked to diseases like cancer and cardiac conditions.
- miR-21 is consistently upregulated in both cancer and cardiovascular diseases, acting as an oncomir.
Purpose of the Study:
- To review the patent landscape for therapeutic applications of miR-21 modulation.
- To highlight miR-21's role as a potential therapeutic target in oncology and cardiology.
Main Methods:
- Literature review of scientific publications and patent databases.
- Analysis of studies investigating miR-21's function in cancer and cardiovascular systems.
- Examination of therapeutic interventions targeting miR-21.
Main Results:
- miR-21 promotes oncogenic activity and contributes to cardiac fibrosis and heart failure.
- Inhibition of miR-21 reduced breast cancer growth in preclinical models.
- Therapeutic antagonism of miR-21 improved cardiac function and ameliorated pressure-overload effects in mouse models.
Conclusions:
- miR-21 is a validated therapeutic target for both cancer and cardiovascular diseases.
- Modulation of miR-21, particularly inhibition, holds significant therapeutic potential.
- The patent landscape reflects the growing interest in miR-21-based therapies.
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