Preprint / Version 1

Review of Nanoparticle-Based Drug Delivery Methods in Conjunction With Antisense Oligonucleotide for the Treatment of Spinal Muscular Atrophy

##article.authors##

  • Ansh Patel Allen High School

DOI:

https://doi.org/10.58445/rars.120

Keywords:

Biotechnology, Medicine, Nanotechnology, Rare Diseases, Spinal Muscular Atrophy, Antisense Oligonucleotides, Drug-Delivery Systems

Abstract

Nanoparticles have shown great potential as drug delivery systems that are highly effective while also enhancing the chemical properties of the drug itself. In the last decade, numerous studies and clinical trials have shown that nanotechnology-based treatment strategies are significantly more effective and versatile in the field of biomedicine, especially when used as nanocarriers for treatments in rare neural, cardiovascular and blood disorders. Nanoparticle-based drug delivery systems are especially prominent solutions for neurological diseases because of their ability to cross the blood-brain barrier and blood-cerebrospinal fluid barrier, which block most endogenous and exogenous substances from entering into the central nervous system. Spinal Muscular Atrophy is a rare, genetic neurodegenerative disease affecting lower motor neurons and is the leading cause of genetic infant mortality. Spinal Muscular Atrophy has a prevalence rate of 1 in 6,000 in infants, and its severity in infants results in a high mortality rate, decreasing the average lifespan of patients to only 18 months. Antisense Oligonucleotides are a genetic treatment for SMA which function by split-slicing pre-messenger RNA and halting protein translation. Due to their poor penetration and low cellular uptake, they are ineffective when trying to mediate sites in the central nervous system. However, polymer, peptide and exosomes nanoparticles have shown to be promising nanocarriers which can enhance the drug’s chemical properties in offsetting the disease and allow it to reach into the central nervous system with increased target specification. In addition, these nanoparticles exhibit various features that enable them to directly overcome the limitations of Antisense Oligonucleotides. This review provides a discussion of advancement in nanotechnology-based drug delivery systems specified to amelioration of ASOs relevant to SMA disease progression and its usage in developing a critically-needed effective and accessible treatment for SMA patients.

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2023-01-12

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