期刊
CELLULAR AND MOLECULAR LIFE SCIENCES
卷 67, 期 3, 页码 455-466出版社
SPRINGER BASEL AG
DOI: 10.1007/s00018-009-0194-0
关键词
Antimicrobial peptide; Insect defensin; Maggot therapy; Lucilia sericata
资金
- Czech Science Foundation [203/08/0536]
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic [Z40550506]
A novel homologue of insect defensin designated lucifensin (Lucilia defensin) was purified from the extracts of various tissues (gut, salivary glands, fat body, haemolymph) of green bottle fly (Lucilia sericata) larvae and from their excretions/secretions. The primary sequence of this peptide of 40 residues and three intramolecular disulfide bridges was determined by ESI-QTOF mass spectrometry and Edman degradation and is very similar to that of sapecin and other dipteran defensins. We assume that lucifensin is the key antimicrobial component that protects the maggots when they are exposed to the highly infectious environment of a wound during the medicinal process known as maggot therapy. We also believe that lucifensin is that long-sought larger molecular weight antimicrobial factor of the Lucilia sericata excretions/secretions believed to be effective against pathogenic elements of the wound microbial flora.
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