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Updated: May 10, 2026

Delivery of Modified mRNA in a Myocardial Infarction Mouse Model
Published on: June 11, 2020
Therapeutic potential of nucleic acid-based drugs in coronary hyper- proliferative vascular diseases
G Grassi1, B Scaggiante, B Dapas
1Department of Life Sciences, University of Trieste, Trieste, Italy. ggrassi@units.it
Insights
Nucleic acid-based drugs (NABDs) show promise for treating intimal hyperplasia, a common issue after vascular procedures. Optimizing their delivery to blood vessels is key to realizing their therapeutic potential.
Area of Science:
- Vascular Biology and Medicine
- Molecular Therapeutics
- Biotechnology
Background:
- Intimal hyperplasia, or vessel wall thickening, frequently complicates revascularization procedures like angioplasty and bypass grafts.
- Current treatments for intimal hyperplasia have improved but remain insufficient, necessitating novel therapeutic strategies.
- Nucleic acid-based drugs (NABDs) offer a promising new class of molecules for addressing this condition.
Purpose of the Study:
- To review the clinical challenge of intimal hyperplasia following revascularization.
- To examine the experimental evidence supporting the therapeutic potential of NABDs in preventing intimal hyperplasia.
- To discuss strategies for optimizing NABD delivery to the vasculature for effective treatment.
Main Methods:
- Review of existing literature on intimal hyperplasia and NABD applications.
- Analysis of experimental data demonstrating NABD efficacy in preclinical models.
- Evaluation of various NABD delivery systems and their suitability for vascular applications.
Main Results:
- NABDs, including ribozymes, DNAzymes, antisense oligonucleotides, decoy oligonucleotides, and small/micro interfering RNAs, can target specific nucleic acids or proteins.
- These molecules effectively down-modulate disease-causing biological molecules, showing significant therapeutic potential in experimental intimal hyperplasia models.
- Effective delivery of NABDs to the vasculature remains a critical challenge for clinical translation.
Conclusions:
- NABDs represent a potent therapeutic avenue for managing and preventing intimal hyperplasia.
- Further research into optimized delivery systems is essential to overcome current limitations and enable clinical application of NABDs.
- Targeted delivery strategies are crucial for harnessing the full therapeutic potential of NABDs in vascular disease.
Abstract:
The thickening of the vessel wall (intimal hyperplasia) is a pathological process which often follows revascularization approaches such as transluminal angioplasty and artery bypass graft, procedures used to re-vascularize stenotic artery. Despite the significant improvements in the treatment of intimal hyperplasia obtained in the last years, the problem has not completely solved. Nucleic acid based-drugs (NABDs) represent an emergent class of molecules with potential therapeutic value for the treatment of intimal hyperplasia. NABDs of interest in the field of intimal hyperplasia are: ribozymes, DNAzymes, antisense oligonucleotides, decoy oligonucleotides, small interfering RNAs and micro interfering RNAs. These molecules can recognize, in a sequencespecific fashion, a target which, depending on the different NABDs, can be represented by a nucleic acid or a protein. Upon binding, NABDs can down-modulate the functions of the target (mRNA/proteins) and thus they are used to impair the functions of disease-causing biological molecules.In spite of the great therapeutic potential demonstrated by NABDs in many experimental model of intima hyperplasia, their practical use is hindered by the necessity to identify optimal delivery systems to the vasculature. In the first part of this review a brief description of the clinical problem related to intima hyperplasia formation after revascularization procedures is reported. In the second part, the attention is focused on the experimental evidences of NABD therapeutic potential in the prevention of intimal hyperplasia. Finally, in the third part, we will describe the strategies developed to optimize NABD delivery to the diseased vessel.
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