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Related Concept Videos

RNA Interference01:23

RNA Interference

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.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
siRNA - Small Interfering RNAs02:30

siRNA - Small Interfering RNAs

Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the ATP-dependent...
Experimental RNAi02:15

Experimental RNAi

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...
Small interfering RNAs (siRNA)02:30

Small interfering RNAs (siRNA)

Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the ATP-dependent...

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Related Experiment Video

Updated: Jun 17, 2026

Long-term Silencing of Intersectin-1s in Mouse Lungs by Repeated Delivery of a Specific siRNA via Cationic Liposomes. Evaluation of Knockdown Effects by Electron Microscopy
15:55

Long-term Silencing of Intersectin-1s in Mouse Lungs by Repeated Delivery of a Specific siRNA via Cationic Liposomes. Evaluation of Knockdown Effects by Electron Microscopy

Published on: June 21, 2013

Nonviral methods for siRNA delivery.

Kun Gao1, Leaf Huang

  • 1University of North Carolina, Chapel Hill, North Carolina 27599, USA.

Molecular Pharmaceutics
|January 1, 2009
PubMed
Summary
This summary is machine-generated.

RNA interference (RNAi) using small interfering RNA (siRNA) offers a novel therapeutic strategy. Targeted nanoparticle delivery systems are crucial for advancing siRNA therapeutics, particularly in cancer treatment.

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Double-stranded RNA Oral Delivery Methods to Induce RNA Interference in Phloem and Plant-sap-feeding Hemipteran Insects
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Double-stranded RNA Oral Delivery Methods to Induce RNA Interference in Phloem and Plant-sap-feeding Hemipteran Insects

Published on: May 4, 2018

Preparation of Neutrally-charged, pH-responsive Polymeric Nanoparticles for Cytosolic siRNA Delivery
09:09

Preparation of Neutrally-charged, pH-responsive Polymeric Nanoparticles for Cytosolic siRNA Delivery

Published on: May 2, 2019

Related Experiment Videos

Last Updated: Jun 17, 2026

Long-term Silencing of Intersectin-1s in Mouse Lungs by Repeated Delivery of a Specific siRNA via Cationic Liposomes. Evaluation of Knockdown Effects by Electron Microscopy
15:55

Long-term Silencing of Intersectin-1s in Mouse Lungs by Repeated Delivery of a Specific siRNA via Cationic Liposomes. Evaluation of Knockdown Effects by Electron Microscopy

Published on: June 21, 2013

Double-stranded RNA Oral Delivery Methods to Induce RNA Interference in Phloem and Plant-sap-feeding Hemipteran Insects
10:14

Double-stranded RNA Oral Delivery Methods to Induce RNA Interference in Phloem and Plant-sap-feeding Hemipteran Insects

Published on: May 4, 2018

Preparation of Neutrally-charged, pH-responsive Polymeric Nanoparticles for Cytosolic siRNA Delivery
09:09

Preparation of Neutrally-charged, pH-responsive Polymeric Nanoparticles for Cytosolic siRNA Delivery

Published on: May 2, 2019

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Pharmacology

Background:

  • RNA interference (RNAi) is a mechanism for selective messenger RNA (mRNA) degradation.
  • Small interfering RNA (siRNA) therapeutics show promise for drug target validation and functional genomics.
  • Clinical trials for siRNA therapeutics are underway, highlighting rapid development.

Purpose of the Study:

  • To review current delivery strategies for synthetic siRNA.
  • To focus on targeted, self-assembled nanoparticles for siRNA delivery.
  • To assess the potential of these nanoparticles in cancer therapy.

Main Methods:

  • Literature review of current siRNA delivery strategies.
  • Focus on nanoparticle-based delivery systems.
  • Analysis of targeted and self-assembled nanoparticle approaches.

Main Results:

  • siRNA therapeutics face significant delivery challenges.
  • Targeted, self-assembled nanoparticles are a promising delivery strategy.
  • These nanoparticles show potential for effective cancer therapy.

Conclusions:

  • Effective siRNA delivery is critical for clinical development.
  • Nanoparticle-based strategies, especially targeted self-assembled ones, are key.
  • These approaches hold significant potential for advancing siRNA-based cancer treatments.