کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2455394 1110512 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Secretory virulence factors produced by Staphylococcus aureus isolates obtained from mastitic bovine milk – effect on bovine polymorphonuclear neutrophils
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Secretory virulence factors produced by Staphylococcus aureus isolates obtained from mastitic bovine milk – effect on bovine polymorphonuclear neutrophils
چکیده انگلیسی

The aim of the research was to test whether exogenic virulence factors secreted by Staphylococcus aureus isolates are involved in mechanisms that allow the bacteria to modulate and evade phagocytosis by bovine polymorphonuclear neutrophils. The research was based on the comparison of the effects of supernatants, prepared from cultures of 30 S. aureus isolates, on the functional properties of bovine neutrophils in vitro. S. aureus isolates were collected from milk samples from cows with clinical mastitis. Supernatants, which were used to treat leukocytes, were prepared from 18 h S. aureus cultures. Exogenic virulence factors secreted by S. aureus isolates significantly influenced the phagocytosis parameters evaluated. Depending on their leukotoxic or superantigenic properties, supernatants could affect the ingestion process, and also showed an influence on the digestion efficiency and phagocytosis carried out by bovine polymorphonuclear neutrophils in vitro.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Research in Veterinary Science - Volume 93, Issue 1, August 2012, Pages 82–87
نویسندگان
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