Interaction of surface molecules on Cryptococcus neoformans with plasminogen
0303 health sciences
Plasminogen
Surface Plasmon Resonance
3. Good health
Plasminogen Activators
03 medical and health sciences
Polysaccharides
Cryptococcus neoformans
Humans
Fibrinolysin
Research Articles
Biotransformation
Protein Binding
DOI:
10.1111/1567-1364.12131
Publication Date:
2013-12-21T00:21:45Z
AUTHORS (2)
ABSTRACT
Microbial pathogens are known to express molecules that interact with host proteins, leading invasion and colonization. For example, some pathogenic microorganisms proteins bind enhance the activity of plasminogen. In this way, utilize fibrinolytic system promote invasion. We found triosephosphate isomerase (TPI), a glycolytic enzyme produced by Staphylococcus aureus, bound mannooligosaccharides from capsulated fungus Cryptococcus neoformans human plasminogen, suggesting TPI is moonlighting protein. Several C. surface thought be plasminogen-binding proteins. Here, we examined ability polymers (including polysaccharides) Heat-killed cells transformed plasminogen into plasmin in dose-dependent manner presence tissue activator. Soluble polysaccharides were based on plasmon resonance (SPR) analysis. Neutral fractionated using DEAE column chromatography activated However, fraction containing glucuronoxylomannan (the primary component capsule) did not activate addition, binding between was weak. Components neutral identified as mannose, galactose, glucose xylose. conclusion, may affect fibrinolysis detected
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