Abstract:
:The effects of the sub-MIC of antibiotics on the surface hydrophobicity and charge of Staphylococcus aureus were examined by the contact angle method and by microscopic electrophoresis, and the production of oxygen-derived radicals by mouse peritoneal macrophages was measured by a luminol-chemiluminescence assay. The treatment of the bacterial cells with antibiotics induced an increase in hydrophobicity and a decrease in the negative charge of the bacterial surface. The chemiluminescence of the macrophages stimulated by S. aureus treated with antibiotics was significantly higher than that obtained with the untreated bacterial cells. These findings suggest that the antibiotics caused an increase in the hydrophobicity and a decrease in the negative charge of the surface of S. aureus, resulting in the enhancement of nonopsonic phagocytosis of S. aureus by macrophages.
journal_name
Chemotherapyjournal_title
Chemotherapyauthors
Nomura S,Kuroiwa A,Nagayama Adoi
10.1159/000239327subject
Has Abstractpub_date
1995-03-01 00:00:00pages
77-81issue
2eissn
0009-3157issn
1421-9794journal_volume
41pub_type
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