J Med Microbiol 57 (2008), 617-625; DOI: 10.1099/jmm.0.47515-0
© 2008 Society for General Microbiology
ISSN 1473-5644
Selective antimicrobial activity of maggots against pathogenic bacteria
Domen Jakli
1,
Ale
Lapanje1,2,
Klemen Zupan
i
1,
Dragica Smrke3 and
Nina Gunde-Cimerman1
1 Department of Biology, Biotechnical Faculty, University of Ljubljana, Ve
na pot 111, 1000 Ljubljana, Slovenia
2 Institute of Physical Biology, Veliko Mla
evo 59, 1290 Grosuplje, Slovenia
3 University Medical Centre Ljubljana, Zalo
ka cesta 2, 1000 Ljubljana, Slovenia
Correspondence
Nina Gunde-Cimerman
nina.gunde-cimerman{at}bf.uni-lj.si
Received 16 July 2007
Accepted 21 January 2008
Maggot therapy, also known as biosurgery, is an ancient method for the healing of chronic infected wounds. Although clinicians have reported on the beneficial activities of the Lucilia sericata larvae that have been used for healing chronic wounds, the selectivity of this therapy against the different pathogenic micro-organisms that are found in chronic wounds has never been analysed. In the present study, we have investigated the in vitro activities of larval excreta/secreta both against selected bacterial strains that frequently occur in chronically infected wounds, and against bacteria isolated directly from the larvae and their excreta/secreta. Additionally, the antibacterial activities were investigated in in vivo studies, by comparing bacterial diversity in wounds before and after the application of L. sericata larvae. In conclusion, larval therapy is highly recommended, particularly for the treatment of wounds infected with Gram-positive bacteria, like Staphylococcus aureus, but less so for wounds infected with Gram-negative bacteria, especially Proteus spp. and Pseudomonas spp. strains. Bacteria from the genus Vagococcus were resistant to the maggot excreta/secreta.
Copyright © 2008 Society for General Microbiology.