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Related Concept Videos

Viruses with RNA Genomes01:29

Viruses with RNA Genomes

RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
Hepatitis01:25

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
Inhibitors of Viral Protein Synthesis01:30

Inhibitors of Viral Protein Synthesis

Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
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.
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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.
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Inhibitors Of Virion Release01:25

Inhibitors Of Virion Release

Viral replication and dissemination rely on efficient mechanisms for host cell entry, genome replication, assembly, and release. Influenza viruses, such as types A and B, are negative-sense single-stranded RNA viruses with a segmented genome, that depend on two critical surface glycoproteins to carry out these processes: hemagglutinin (HA) and neuraminidase (NA). HA initiates infection by binding to sialic acid residues on the surface of host epithelial cells, facilitating receptor-mediated...

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Related Experiment Video

Updated: Jun 21, 2026

High-throughput Screening for Broad-spectrum Chemical Inhibitors of RNA Viruses
11:34

High-throughput Screening for Broad-spectrum Chemical Inhibitors of RNA Viruses

Published on: May 5, 2014

Long-term RNA interference and its application to hepatitis B virus.

Jin Shui Pan1, Xiao Zhong Wang, Jian Lin Ren

  • 1Department of Gastroenterology, Zhongshan Hospital Xiamen University, Xiamen, China.

Journal of Digestive Diseases
|August 8, 2009
PubMed
Summary

RNA interference (RNAi) offers a novel therapeutic strategy for chronic hepatitis B virus (HBV) infections. This ancient gene-silencing mechanism, when engineered for long-term induction, shows promise in combating HBV.

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Last Updated: Jun 21, 2026

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11:34

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Published on: May 5, 2014

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09:35

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11:14

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Published on: November 7, 2018

Area of Science:

  • Molecular Biology
  • Genetics
  • Virology

Background:

  • RNA interference (RNAi) is a natural eukaryotic defense mechanism against foreign genetic material.
  • RNAi facilitates sequence-specific gene silencing via double-stranded RNA.
  • Current RNAi therapeutics face challenges in delivery, stability, and cellular uptake.

Purpose of the Study:

  • To explore the principles and construction of long-term inducible RNAi.
  • To evaluate the therapeutic potential of RNAi against hepatitis B virus (HBV).
  • To address potential hazards associated with long-term RNAi strategies.

Main Methods:

  • Review of RNA interference mechanisms and their application.
  • Discussion of long-term inducible RNAi system design.
  • Analysis of HBV as a target for RNAi-based therapy.

Main Results:

  • RNAi is a potent tool for gene function analysis and treating various diseases.
  • Long-term inducible RNAi aims to overcome delivery and stability limitations.
  • RNAi holds potential for treating chronic HBV infection, despite in vitro limitations.

Conclusions:

  • RNAi represents a promising therapeutic avenue for chronic hepatitis B virus infection.
  • Long-term inducible RNAi systems require careful consideration of potential risks.
  • Harnessing RNAi offers a powerful new strategy against HBV.