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Mrna - Astrophysics Data System

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Last Updated: 07 June 2022

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Charge-altering releasable transporters (CARTs) for the delivery and release of mRNA in living animals

"Protein expression using mRNA has the ability to change many areas of life science research and influence disease prevention, detection, and treatment. " An unprecedented self-immolation system is used for a class of materials developed for mRNA delivery. They noncovalently complicated, shield, produce, and export mRNA with > 99% transfection success in cultured cells and with increased protein expression in mice using various routes of administration," they said.

Source link: https://ui.adsabs.harvard.edu/abs/2017PNAS..114E.448M/abstract


High-throughput in vivo screen of functional mRNA delivery identifies nanoparticles for endothelial cell gene editing

"We developed a high-throughput method to see how > 100 nanoparticles converted mRNA from functional protein in vivo, increasing the number of nanoparticles that could be studied in vivo. " In vivo, more than 250 lipid nanoparticles delivered mRNA, including two LNPs that deliver mRNA to endothelial cells. We quantified how many lipid nanoparticles delivered mRNA, revealing two LNPs that deliver mRNA to endothelial cells.

Source link: https://ui.adsabs.harvard.edu/abs/2018PNAS..115E9944S/abstract


mRNA vaccination with charge-altering releasable transporters elicits human T cell responses and cures established tumors in mice

"The RNA delivery field is primarily focusing on lipid nanoparticles. " The process of RNA charge-altering releasable transporters delivery and release is unique. A key feature of CARTs is a charge-altering degradation system that converts the initial polycationic CART into non-biological byproducts, allowing endosomal migration, release, and subsequent translation of the polyanionic mRNA cargo. ".

Source link: https://ui.adsabs.harvard.edu/abs/2018PNAS..115E9153H/abstract


A proposed signaling motif for nuclear import in mRNA processing via the formation of arginine claw

"The human SR protein ASF/SF2 is dependent on the processive phosphorylation of eight consecutive arginine-serine dipeptide repeats at the C terminus by SRPK1 before it can be transported into the nucleus. This SR protein plays a key role in spliceosome assembly, pre-mRNA splicing, and mRNA export, as well as mRNA export, and mRNA export, and mRNA export, and mRNA export, and mRNA export, and mRNA export, and mRNA export, and mRNA export, and mRNA export, as well as the phosphorylation process of the RS repeats, and experimentally However, information regarding the conformational changes associated with this simple sequence's phosphorylation of this basic sequence and how it leads to the importing of the SR protein is lacking. We have carried out extensive molecular dynamics simulations to show that phosphorylation of the eight RS repeats significantly alters the peptide's conformation and results in the synthesis of very stable structures that are likely to be involved in the recognition, binding, and transport of the SR protein.

Source link: https://ui.adsabs.harvard.edu/abs/2007PNAS..10414947H/abstract


Successful reprogramming of cellular protein production through mRNA delivered by functionalized lipid nanoparticles

"mRNA therapies are an exciting method to treat diseases that are otherwise unaffected by current therapies. " The lipids are not uniformly distributed across the LNP, according to our results, and one of the lipids is localized mainly at its surface. We were able to produce LNPs that successfully restore intracellular protein production in two clinically relevant cell types thanks to the structural information provided.

Source link: https://ui.adsabs.harvard.edu/abs/2018PNAS..115E3351Y/abstract


Lung-selective mRNA delivery of synthetic lipid nanoparticles for the treatment of pulmonary lymphangioleiomyomatosis

"We also established that our lung-targeting LNP could safely transplant mouse tuberous sclerosis complex 2 mRNA into TSC-null cells and restore its function," says TSC2-null cells' improved control of tumor burden in a preclinical model of lymphangioleiosis, a chronic lung disease caused by loss-of-function mutations in the Tsc2 gene. ".

Source link: https://ui.adsabs.harvard.edu/abs/2022PNAS..11916271Q/abstract


Sparse linear modeling of next-generation mRNA sequencing (RNA-Seq) data for isoform discovery and abundance estimation

"Since the introduction of next-generation mRNA sequencing techniques, several attempts have been made to utilize RNA-Seq results in assembling full-length mRNA isoforms de novo and determining the abundance of isoforms. " We've invented a statistical tool called "sparse linear modeling of RNA-Seq results for isoform discovery and abundance estimation" that uses exon boundaries and RNA-Seq results as a starting point for determining the set of mRNA isoforms that are most likely to occur in an RNA-Seq sample. SLIDE investigates the stochastic aspects of RNA-Seq reads in exons from various isoforms, thereby increasing detection of more novel isoforms in comparison to conventional isoform assembly methods. Besides isoform discovery, SLIDE continues to estimate the number of found isoforms by using the same linear system. SLIDE's results are equal to or higher than major competitors in both isoform discovery and abundance estimation, as well as real data studies show it.

Source link: https://ui.adsabs.harvard.edu/abs/2011PNAS..10819867L/abstract


Lipid nanoparticle-mediated codelivery of Cas9 mRNA and single-guide RNA achieves liver-specific in vivo genome editing of Angptl3

"Genome editing techniques allow for the permanent repair of disease-causing genetic mutations. " Although LNPs have been licensed by the FDA for delivery of siRNA to the liver, here we look at the applicants for genome editing. When compared head-to-head, our delivery platform outperforms FDA-approved LNP in the timely delivery of Cas9 mRNA for the knockdown of the Angptl3 gene and subsequent hypercholesterolemia control, while still retaining the same safety and specificity of the approved platform. ".

Source link: https://ui.adsabs.harvard.edu/abs/2021PNAS..11820401Q/abstract

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions