A short artificial antimicrobial peptide shows potential to prevent or treat bone infections
Abstract Infection of bone is a severe complication due to the variety of bacteria causing it, their resistance against classical antibiotics, the formation of a biofilm and the difficulty to eradicate it. Antimicrobial peptides (AMPs) are naturally occurring peptides and promising candidates for tr...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2017-05-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-01698-0 |
| _version_ | 1818840463014100992 |
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| author | N. Bormann A. Koliszak S. Kasper L. Schoen K. Hilpert R. Volkmer J. Kikhney B. Wildemann |
| author_facet | N. Bormann A. Koliszak S. Kasper L. Schoen K. Hilpert R. Volkmer J. Kikhney B. Wildemann |
| author_sort | N. Bormann |
| collection | DOAJ |
| description | Abstract Infection of bone is a severe complication due to the variety of bacteria causing it, their resistance against classical antibiotics, the formation of a biofilm and the difficulty to eradicate it. Antimicrobial peptides (AMPs) are naturally occurring peptides and promising candidates for treatment of joint infections. This study aimed to analyze the effect of short artificial peptides derived from an optimized library regarding (1) antimicrobial effect on different bacterial species, (2) efficacy on biofilms, and (3) effect on osteoblast‑like cells. Culturing the AMP-modifications with Escherichia coli, Enterococcus faecalis, Pseudomonas aeruginosa, Staphylococcus aureus (including clinical isolates of MRSA and MSSA) and Staphylococcus epidermidis identified one candidate that was most effective against all bacteria. This AMP was also able to reduce biofilm as demonstrated by FISH and microcalorimetry. Osteoblast viability and differentiation were not negatively affected by the AMP. A cation concentration comparable to that physiologically occurring in blood had almost no negative effect on AMP activity and even with 10% serum bacterial growth was inhibited. Bacteria internalized into osteoblasts were reduced by the AMP. Taken together the results demonstrate a high antimicrobial activity of the AMP even against bacteria incorporated in a biofilm or internalized into cells without harming human osteoblasts. |
| first_indexed | 2024-12-19T04:10:35Z |
| format | Article |
| id | doaj.art-8cc49451c0b64c579e355aeb8941cf1a |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-19T04:10:35Z |
| publishDate | 2017-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-8cc49451c0b64c579e355aeb8941cf1a2022-12-21T20:36:25ZengNature PortfolioScientific Reports2045-23222017-05-017111410.1038/s41598-017-01698-0A short artificial antimicrobial peptide shows potential to prevent or treat bone infectionsN. Bormann0A. Koliszak1S. Kasper2L. Schoen3K. Hilpert4R. Volkmer5J. Kikhney6B. Wildemann7Julius Wolff Institute, Charité - Universitätsmedizin BerlinJulius Wolff Institute, Charité - Universitätsmedizin BerlinJulius Wolff Institute, Charité - Universitätsmedizin BerlinJulius Wolff Institute, Charité - Universitätsmedizin BerlinInstitute of Infection and Immunity, St George’s University of LondonInstitute for Medical Immunology, Charité - Universitätsmedizin BerlinInstitute for Microbiology and Hygiene, Charité – Universitätsmedizin BerlinJulius Wolff Institute, Charité - Universitätsmedizin BerlinAbstract Infection of bone is a severe complication due to the variety of bacteria causing it, their resistance against classical antibiotics, the formation of a biofilm and the difficulty to eradicate it. Antimicrobial peptides (AMPs) are naturally occurring peptides and promising candidates for treatment of joint infections. This study aimed to analyze the effect of short artificial peptides derived from an optimized library regarding (1) antimicrobial effect on different bacterial species, (2) efficacy on biofilms, and (3) effect on osteoblast‑like cells. Culturing the AMP-modifications with Escherichia coli, Enterococcus faecalis, Pseudomonas aeruginosa, Staphylococcus aureus (including clinical isolates of MRSA and MSSA) and Staphylococcus epidermidis identified one candidate that was most effective against all bacteria. This AMP was also able to reduce biofilm as demonstrated by FISH and microcalorimetry. Osteoblast viability and differentiation were not negatively affected by the AMP. A cation concentration comparable to that physiologically occurring in blood had almost no negative effect on AMP activity and even with 10% serum bacterial growth was inhibited. Bacteria internalized into osteoblasts were reduced by the AMP. Taken together the results demonstrate a high antimicrobial activity of the AMP even against bacteria incorporated in a biofilm or internalized into cells without harming human osteoblasts.https://doi.org/10.1038/s41598-017-01698-0 |
| spellingShingle | N. Bormann A. Koliszak S. Kasper L. Schoen K. Hilpert R. Volkmer J. Kikhney B. Wildemann A short artificial antimicrobial peptide shows potential to prevent or treat bone infections Scientific Reports |
| title | A short artificial antimicrobial peptide shows potential to prevent or treat bone infections |
| title_full | A short artificial antimicrobial peptide shows potential to prevent or treat bone infections |
| title_fullStr | A short artificial antimicrobial peptide shows potential to prevent or treat bone infections |
| title_full_unstemmed | A short artificial antimicrobial peptide shows potential to prevent or treat bone infections |
| title_short | A short artificial antimicrobial peptide shows potential to prevent or treat bone infections |
| title_sort | short artificial antimicrobial peptide shows potential to prevent or treat bone infections |
| url | https://doi.org/10.1038/s41598-017-01698-0 |
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