Antiviral Properties of Lactoferrin—A Natural Immunity Molecule

Bibliographic Details
Title: Antiviral Properties of Lactoferrin—A Natural Immunity Molecule
Authors: Antonella Polimeni, Piera Valenti, Alessandra Frioni, Rosalba Paesano, Tiziana Natalizi, Fabrizio Pantanella, Francesca Berlutti
Source: Molecules, Vol 16, Iss 8, Pp 6992-7018 (2011)
Publisher Information: MDPI AG, 2011.
Publication Year: 2011
Collection: LCC:Organic chemistry
Subject Terms: lactoferrin, virus, viral infection, Organic chemistry, QD241-441
More Details: Lactoferrin, a multifunctional iron binding glycoprotein, plays an important role in immune regulation and defence mechanisms against bacteria, fungi and viruses. Lactoferrin’s iron withholding ability is related to inhibition of microbial growth as well as to modulation of motility, aggregation and biofilm formation of pathogenic bacteria. Independently of iron binding capability, lactoferrin interacts with microbial, viral and cell surfaces thus inhibiting microbial and viral adhesion and entry into host cells. Lactoferrin can be considered not only a primary defense factor against mucosal infections, but also a polyvalent regulator which interacts in viral infectious processes. Its antiviral activity, demonstrated against both enveloped and naked viruses, lies in the early phase of infection, thus preventing entry of virus in the host cell. This activity is exerted by binding to heparan sulphate glycosaminoglycan cell receptors, or viral particles or both. Despite the antiviral effect of lactoferrin, widely demonstrated in vitro studies, few clinical trials have been carried out and the related mechanism of action is still under debate. The nuclear localization of lactoferrin in different epithelial human cells suggests that lactoferrin exerts its antiviral effect not only in the early phase of surface interaction virus-cell, but also intracellularly. The capability of lactoferrin to exert a potent antiviral activity, through its binding to host cells and/or viral particles, and its nuclear localization strengthens the idea that lactoferrin is an important brick in the mucosal wall, effective against viral attacks and it could be usefully applied as novel strategy for treatment of viral infections.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1420-3049
Relation: http://www.mdpi.com/1420-3049/16/8/6992/; https://doaj.org/toc/1420-3049
DOI: 10.3390/molecules16086992
Access URL: https://doaj.org/article/b7316cc7c7344b978193045289a85049
Accession Number: edsdoj.b7316cc7c7344b978193045289a85049
Database: Directory of Open Access Journals
More Details
ISSN:14203049
DOI:10.3390/molecules16086992
Published in:Molecules
Language:English