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Phage therapy-constraints and possibilities
Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute.
2014 (English)In: Upsala Journal of Medical Sciences, ISSN 0300-9734, E-ISSN 2000-1967, Vol. 119, no 2, 192-198 p.Article, review/survey (Refereed) Published
Abstract [en]

The rise of antibiotic-resistant bacterial strains, causing intractable infections, has resulted in an increased interest in phage therapy. Phage therapy preceded antibiotic treatment against bacterial infections and involves the use of bacteriophages, bacterial viruses, to fight bacteria. Virulent phages are abundant and have proven to be very effective in vitro, where they in most cases lyse any bacteria within the hour. Clinical trials on animals and humans show promising results but also that the treatments are not completely effective. This is partly due to the studies being carried out with few phages, and with limited experimental groups, but also the fact that phage therapy has limitations in vivo. Phages are large compared with small antibiotic molecules, and each phage can only infect one or a few bacterial strains. A very large number of different phages are needed to treat infections as these are caused by genetically different strains of bacteria. Phages are effective only if enough of them can reach the bacteria and increase in number in situ. Taken together, this entails high demands on resources for the construction of phage libraries and the testing of individual phages. The effectiveness and host range must be characterized, and immunological risks must be assessed for every single phage.

Place, publisher, year, edition, pages
2014. Vol. 119, no 2, 192-198 p.
Keyword [en]
Antibiotic resistance, bacteriophage, phage, phage therapy
National Category
Medical Bioscience
URN: urn:nbn:se:su:diva-105937DOI: 10.3109/03009734.2014.902878ISI: 000336526100019OAI: diva2:733186


Available from: 2014-07-08 Created: 2014-07-08 Last updated: 2014-07-08Bibliographically approved

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Nilsson, Anders S.
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