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Related Concept Videos

Experimental RNAi02:15

Experimental RNAi

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RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
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RNA Interference01:23

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RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
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Types of RNA01:20

Types of RNA

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Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
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Types of RNA01:23

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Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
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Translational Regulation01:29

Translational Regulation

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Translational regulation in prokaryotes ensures efficient protein synthesis by controlling ribosome access to mRNA. This regulation is mediated by secondary RNA structures, including translational riboswitches, RNA thermometers, and small RNAs (sRNAs), which respond to intracellular and environmental signals to modulate gene expression.Translational RiboswitchesRiboswitches in the leader region of mRNAs can regulate translation by altering the accessibility of the Shine-Dalgarno (SD) sequence,...
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Riboswitches01:56

Riboswitches

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Riboswitches are non-coding mRNA domains that regulate the transcription and translation of downstream genes without the help of proteins. Riboswitches bind directly to a metabolite and can form unique stem-loop or hairpin structures in response to the amount of the metabolite present. They have two distinct regions – a metabolite-binding aptamer and an expression platform.
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DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation
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Triggerable RNA nanodevices.

Justin Halman1, Emily Satterwhite1, Jaclyn Smollett1

  • 1Department of Chemistry, University of North Carolina at Charlotte, 9201 University City Boulevard, Charlotte 28223, North Carolina, USA.

RNA & Disease (Houston, Tex.)
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Summary
This summary is machine-generated.

Customized nucleic acid nanoparticles offer programmable, biocompatible drug delivery. These nanoparticles conditionally activate RNA interference for gene silencing in diseased cells, enabling targeted therapies.

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Area of Science:

  • Biomedical Engineering
  • Molecular Biology
  • Nanotechnology

Background:

  • Personalized medicine increasingly relies on targeted and conditional drug activation.
  • Nucleic acid nanoparticles are promising for drug delivery due to programmability and biocompatibility.
  • RNA interference (RNAi) therapeutics offer potent gene silencing capabilities.

Purpose of the Study:

  • To develop novel nucleic acid nanoparticle strategies for conditional RNA interference activation.
  • To create systems capable of simultaneous therapeutic and biosensing functions.
  • To enable targeted treatment of diseases through conditional intracellular activation.

Main Methods:

  • Design and synthesis of customized multivalent nucleic acid nanoparticles.
  • Development of strategies for conditional activation of RNA interference.
  • Integration of biosensing capabilities for fluorescent response detection.

Main Results:

  • Successfully developed two distinct strategies for nucleic acid nanoparticle-based RNA interference.
  • Demonstrated conditional activation of RNA interference specifically in diseased cells.
  • Achieved detectable fluorescent responses indicating successful nanoparticle function.

Conclusions:

  • Novel nucleic acid nanoparticles enable targeted and conditional RNA interference activation.
  • These technologies facilitate simultaneous delivery of multiple therapeutic and biosensing functions.
  • The developed systems hold potential for combating various diseases through personalized medicine approaches.