ArticleApplied microbiology and biotechnology2021
Novel peptide (RATH) mediated delivery of peptide nucleic acids for antiviral interventions.
Article in Applied microbiology and biotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 8 citations in OpenAlex.
- Recent Cutting-Edge Technologies for the Delivery of Peptide Nucleic Acid.Chemistry (Weinheim an der Bergstrasse, Germany) · 2025Review
- Apoptin NLS2 homodimerization strategy for improved antibacterial activity and bio-stability.Amino acids · 2023Article
- Latest Trends in Nucleic Acids' Engineering Techniques Applied to Precision Medicine.Methods in molecular biology (Clifton, N.J.) · 2023Article
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
Abstract
The peptide nucleic acid (PNA) is a chimeric molecule with the nucleobases connected by peptide bonds. This chimeric nature gives the PNA certain therapeutic advantages over natural antisense nucleic acid molecules. The PNA probes are known for its better and stronger complementation with target nucleic acids. However, cellular delivery of PNA is a major hurdle due to the charge-neutral nature of the PNA. For cellular delivery of PNA, peptide-PNA conjugates are used. This approach may face some practical limitation in terms of PNA antisense activity. In this study, we propose a novel RATH-2 peptide-based non-covalent PNA delivery mechanism. We observed RATH-2 shows a favorable molecular interaction with PNA at 16:1 (peptide:PNA) molar ratio resulting in co-centric nanoparticle formation. With this combination, we could achieve as high as 93% cellular delivery of the PNA. The proposed non-covalent RATH:PNA delivery model showed endocytic entrapment free delivery of PNA. The study further demonstrated the therapeutic application of PNA with in vitro antiviral intervention model. Using RATH-2 non-covalent PNA delivery system, we could inhibit 69.5% viral load. The present study demonstrates a cell-penetrating peptide:PNA interaction can lead to nanoparticle formations that facilitated cellular delivery of PNA.Key points• A novel cell-penetrating peptide (RATH-2) was identified for non-covalent delivery of PNA.• RATH-2 and PNA formed co-centric nanoparticles at appropriate molar combination.• PNA delivered through the RATH-2 inhibited the viral gene expression and reduced the viral load.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.