Mrna Delivery
Mrna Delivery - Related Videos
05:50
Intranasal Delivery of mRNA Polyplexes via Rayleigh Breakup Aerosols: An In Vitro Method for Nasal Deposition and Functional Testing
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2026
This protocol presents Rayleigh breakup as a mild process for aerosolizing non-viral mRNA vectors. Regional deposition for aerosolized mRNA vectors is evaluated by the Alberta Idealized Nasal Inlet (AINI) model. Green fluorescence protein (GFP) expression in human lung cells represents maintenance of physicochemical and biological functions of post-aerosolized mRNA vectors.
06:03
Delivery of Modified mRNA in a Myocardial Infarction Mouse Model
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Cited by 7 •
2020
This protocol presents a simple and coherent way to transiently upregulate a gene of interest using modRNA after myocardial infarction in mice.
08:33
Cell-Free In Vitro mRNA Translation In Drosophila Lysates
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2026
Here, we provide details on how to prepare lysates and perform in vitro translation using Drosophila embryos.
02:22
Regulated mRNA Transport
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2020
In eukaryotes, transcription and translation are compartmentalized; an mRNA is first synthesized in the nucleus and then selectively transported to the cytoplasm for protein synthesis. Before transport, a pre-mRNA undergoes several steps of post-transcriptional modifications including splicing, 5' capping, and the addition of a poly-adenine tail. Various proteins bind to the pre-mRNA during these modifications. The mRNA transport takes place with the help of multiple proteins playing specific...
02:31
Nuclear Export of mRNA
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2020
Before mRNAs are exported to the cytoplasm, it is crucial to check each mRNA for structural and functional integrity. Eukaryotic cells use several different mechanisms, collectively known as mRNA surveillance, to look for irregularities in mRNAs. Irregular or aberrant mRNA are rapidly degraded by various enzymes. If a defective mRNA escapes the surveillance, it would be translated into a protein which would either be non-functional or not function properly. One of the primary irregularities in...
FAQs
Naked mRNA is unstable, so it may be degraded before it reaches the cell or performs its intended function. A delivery system preserves the message during transport and helps it reach the appropriate intracellular destination. This protection is therefore central to achieving protein production from the introduced mRNA rather than losing the message before translation can occur.
Lipid nanoparticles address several barriers at once. They protect mRNA from degradation, promote its uptake by cells, and help release it from endosomes, membrane-bound compartments formed during cellular entry. By supporting these sequential steps, the particles increase the likelihood that intact mRNA reaches the cytoplasm, where ribosomes can use it to produce the specified protein.
Cellular uptake alone does not ensure that mRNA will reach the cytoplasm. Material entering cells can remain enclosed within endosomes, preventing ribosomes from accessing the message. Delivery systems must therefore support release from these compartments. Successful escape connects uptake with cytoplasmic availability, making it an essential mechanistic step before translation and protein production can occur.
Delivered mRNA directs protein production for a temporary period rather than serving as a lasting source of expression. This transient behavior allows researchers to study cellular responses or modify cellular function through a specific protein without requiring continuous expression. It also supports therapeutic strategies in which a temporary protein supply is useful, including protein replacement approaches.
A basic workflow begins by placing mRNA in a protective delivery system, such as a lipid nanoparticle. The system then transports the message to target cells, supports cellular uptake, and promotes release from endosomes. Once the mRNA reaches the cytoplasm, ribosomes translate it into the intended protein. Each stage contributes to the final biological outcome.
Researchers apply mRNA delivery when temporary production of a specific protein can provide a useful biological or therapeutic effect. The approach underpins mRNA vaccines and protein replacement therapies, and it also supports studies that examine or modify cellular function. These applications rely on directing the message to the cytoplasm so cells can produce the selected protein.