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In JoVE (1)
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Articles by Carlos Garcia in JoVE
JoVE General
Bir Multiplex Antikor Tarama Yöntemi kullanılarak bir Luminex xMAP Tahlil için bir Capture ELISA Dönüşüm
1Chemistry Research and Development, Luminex Corporation, 2Global Marketing, Luminex Corporation
Bir ELISA kolayca Luminex xMAP assay dönüştürülebilir ve, çoğullama, çeşitli antikorların avantajları ile tahlil maliyet düşürürken, artan duyarlılık ve dinamik aralığı ile sonuçlanan, optimum bir antikor çifti tanımlamak için eşzamanlı taranabilir.
Other articles by Carlos Garcia on PubMed
Nutrient Metal Sequestration by Calprotectin Inhibits Bacterial Superoxide Defense, Enhancing Neutrophil Killing of Staphylococcus Aureus
By sequestering manganese and zinc, the neutrophil protein calprotectin plays a crucial role in host defense against bacterial and fungal pathogens. However, the essential processes disrupted by calprotectin remain unknown. We report that calprotectin enhances the sensitivity of Staphylococcus aureus to superoxide through inhibition of manganese-dependent bacterial superoxide defenses, thereby increasing superoxide levels within the bacterial cell. Superoxide dismutase activity is required for full virulence in a systemic model of S. aureus infection, and disruption of staphylococcal superoxide defenses by calprotectin augments the antimicrobial activity of neutrophils promoting in vivo clearance. Calprotectin mutated in two transition metal binding sites and therefore defective in binding manganese and zinc does not inhibit microbial growth, unequivocally linking the antimicrobial properties of calprotectin to metal chelation. These results suggest that calprotectin contributes to host defense by rendering bacterial pathogens more sensitive to host immune effectors and reducing bacterial growth.
