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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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Updated: Jul 5, 2026

A Silver Nanoparticle Method for Ameliorating Biliary Atresia Syndrome in Mice
07:48

A Silver Nanoparticle Method for Ameliorating Biliary Atresia Syndrome in Mice

Published on: October 13, 2018

Silver nanoparticles inhibit hepatitis B virus replication.

Lei Lu1, Raymond Wai-Yin Sun, Rong Chen

  • 1Department of Medicine, The University of Hong Kong, Pokfulam Road, Hong Kong, China.

Antiviral Therapy
|May 29, 2008
PubMed
Summary

Silver nanoparticles show potential against hepatitis B virus (HBV). These nanoparticles inhibit HBV RNA and extracellular virion production, suggesting a novel antiviral mechanism for HBV infection.

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Last Updated: Jul 5, 2026

A Silver Nanoparticle Method for Ameliorating Biliary Atresia Syndrome in Mice
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Published on: May 10, 2022

Area of Science:

  • Nanotechnology
  • Virology
  • Biochemistry

Background:

  • Silver nanoparticles (AgNPs) demonstrate cytoprotective effects against HIV.
  • Their impact on other viruses, like hepatitis B virus (HBV), is largely unknown.

Purpose of the Study:

  • To investigate the antiviral effects of silver nanoparticles on hepatitis B virus (HBV) in vitro.

Main Methods:

  • Preparation of silver nanoparticles (Ag10Ns and Ag50Ns) with distinct sizes.
  • Assessment of anti-HBV activity using the HepAD38 cell line.
  • Analysis of viral DNA, RNA, and particle interactions using gel mobility shift and electronic microscopy assays.

Main Results:

  • Ag10Ns and Ag50Ns reduced extracellular HBV DNA formation by over 50%.
  • Silver nanoparticles inhibited intracellular HBV RNA production but had minimal impact on HBV cccDNA.
  • Direct interaction between Ag10Ns and HBV DNA/viral particles was observed.

Conclusions:

  • Silver nanoparticles effectively inhibit in vitro HBV RNA and extracellular virion production.
  • The antiviral mechanism is hypothesized to involve direct interaction with HBV DNA or viral particles.