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Bovine lactoferrin inhibits influenza A virus induced programmed cell death in vitro

Agostina Pietrantoni1, Eleonora Dofrelli, Antonella Tinari

  • 1Department of Technology and Health, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy.

Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
|March 17, 2010
PubMed

Insights

Bovine lactoferrin (bLf) combats Influenza A virus by inhibiting apoptosis and blocking viral assembly. This research reveals bLf

Area of Science:

  • Virology
  • Immunology
  • Biochemistry

Background:

  • Influenza poses a significant global health threat, exacerbated by antiviral resistance.
  • Lactoferrin exhibits antimicrobial and immunomodulatory properties, with potential antiviral applications.
  • The precise antiviral mechanism of lactoferrin remains incompletely understood.

Purpose of the Study:

  • To investigate the in vitro antiviral effects of bovine lactoferrin (bLf) against Influenza A virus.
  • To elucidate the molecular mechanisms underlying bLf's antiviral activity.

Main Methods:

  • In vitro study of Influenza A virus-infected cells.
  • Assessment of apoptosis induction and inhibition.
  • Analysis of caspase 3 activity.
  • Evaluation of viral ribonucleoprotein nuclear export.

Main Results:

  • Influenza A virus infection induced apoptosis in host cells.
  • bLf treatment inhibited virus-induced apoptosis by interfering with caspase 3.
  • bLf effectively blocked the nuclear export of viral ribonucleoproteins, hindering viral assembly.

Conclusions:

  • Bovine lactoferrin demonstrates significant antiviral activity against Influenza A virus in vitro.
  • bLf inhibits viral replication by preventing apoptosis and blocking viral assembly.
  • These findings suggest bLf as a potential therapeutic agent for influenza treatment.

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