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Visualization of Bacterial Toxin Induced Responses Using Live Cell Fluorescence Microscopy
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Chapters
- 00:05Title
- 01:09Preparation of Streptolysin O
- 05:22Cell Lytic Assay
- 06:44Micropipette Delivery of Toxin to Cultured Cells
- 10:24Representative Purification and Imaging Results
- 13:56Conclusion
Methods for purifying the cholesterol binding toxin streptolysin O from recombinant E. coli and visualization of toxin binding to live eukaryotic cells are described. Localized delivery of toxin induces rapid and complex changes in targeted cells revealing novel aspects of toxin biology.
Tags
VisualizationBacterial ToxinLive Cell Fluorescence MicroscopyMembranePoresLeakageCellular ContentsInfluxToxin ExposureCell TypeInflammatory ResponsesImmune CellsMacrophagesPro-inflammatory CytokinesGram Positive BacteriaVirulence MechanismsMorphologic ChangesPlasma MembraneCholesterol-enriched Surface ProtrusionsExtracellular SpaceCellular Defense MechanismEM (electron Microscopy)Chemical FixationImmune CellsMacrophagesInflammationMembrane VesiclesIL-1 Family Cytokines
