98%
921
2 minutes
20
Background: Peptide nucleic acids (PNAs) belong to the next generation of synthetic nucleic acid analogues. Their high binding affinity and specificity towards the target DNA or RNA make them the reagent of choice for gene therapy-based applications.
Objective: To review important gene therapy based applications of regular and chemically modified peptide nucleic acids in combination with nanotechnology.
Method: Selective research of the literature.
Results: Poor intracellular delivery of PNAs has been a significant challenge. Among several delivery strategies explored till date, nanotechnology-based strategies hold immense potential. Recent studies have shown that advances in nanotechnology can be used to broaden the range of therapeutic applications of PNAs. In this review, we discussed significant advances made in nanoparticle-based on PLGA polymer, silicon, oxidized carbon and graphene oxide for the delivery of PNAs.
Conclusion: Nanoparticles delivered PNAs can be implied in diverse gene therapy based applications including gene editing as well as gene targeting (antisense) based strategies.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.2174/1381612825666190117164901 | DOI Listing |
J Neuroendocrinol
September 2025
Center for Research in Neuroscience, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.
The maintenance of extracellular fluid (ECF) osmolality and sodium concentration ([Na]) near optimal "set point" values sustains physiological functions and prevents pathological states such as hypo- and hypernatremia. The peptide hormones vasopressin (antidiuretic hormone) and oxytocin (a natriuretic hormone in rats) play key roles in this process. These hormones are synthesized by hypothalamic magnocellular neurosecretory cells (MNCs) that project to the neurohypophysis and are released into the systemic circulation in response to rises in ECF osmolality or [Na].
View Article and Find Full Text PDFProbiotics Antimicrob Proteins
September 2025
School of Life Science, Liaoning Normal University, Dalian, 116081, China.
Cutibacterium acnes (C. acnes, formerly classified as Propionibacterium acnes) is a Gram-positive bacterium that contributes to the development of acne vulgaris, resulting in inflammation and pustule formation on the skin. In this study, we developed and synthesized a series of antimicrobial peptides (AMPs) that are derived from the skin secretion of Rana chensinensis.
View Article and Find Full Text PDFMol Ther Nucleic Acids
September 2025
Department of Chemistry, University of Massachusetts, Lowell, MA 01854, USA.
We combined circular dichroism (CD) and viscosity measurements with molecular dynamics (MD) simulations and classification and regression approaches to machine learning to characterize solution structures of 22-mer, 25-mer, and 30-mer peptide- (-GlyArg6) conjugated phosphorodiamidate morpholino oligonucleotides (PPMOs). PPMO molecules form non-canonical folded structures with 1.4- to 1.
View Article and Find Full Text PDFAnal Biochem
September 2025
Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-Cho Minami, Tottori, 680-8552, Japan.
The duplex-forming behavior of an inchworm-type PNA-PEG conjugate (i-PPc), engineered for the selective recognition of point mutations in DNA, was assessed through thermodynamic analysis employing UV melting curves and circular dichroism spectroscopy. The i-PPc demonstrated the ability to form stable duplexes exclusively with fully complementary DNA sequences, while no hybridization with single-base mismatched sequences. This binary on/off hybridization behavior was maintained even under physiologically relevant conditions (37 °C), thereby illustrating the exceptional point mutation discrimination capability of i-PPc.
View Article and Find Full Text PDFCarbohydr Polym
November 2025
Department of Pharmaceutics, Parul Institute of Pharmacy, Faculty of Pharmacy, Parul University, Waghodia, Vadodara, 391760, Gujarat, India; Centre for Research Impact & Outcome, Chitkara College of Pharmacy, Chitkara University, Rajpura, 140401, Punjab, India; Faculty of Pharmacy, Silpakorn Univers
As a diverse natural polymer called Chitosan, it created ground-breaking advancements in nucleic acid therapeutic delivery techniques for handling essential DNA and RNA delivery hurdles. The article investigates how nucleic acids form stable polyplexes with chitosan through electrostatic bonds, as well as explores their chemical and biological properties. The review explores how molecular weight, combined with the degree of deacetylation, combined with advanced functionalization strategies, help enhance delivery results.
View Article and Find Full Text PDF