ChemotaxisLecture

ChemotaxisLecture - How Cells Decide Where to Go: The Case...

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Mannella et al. Theriot et al. Quantitative Models of Biological Function APh/BE161: Physical Biology of the APh/BE161: Physical Biology of the Cell Cell How Cells Decide Where to Go: How Cells Decide Where to Go: The Case of Bacterial The Case of Bacterial Chemotaxis Chemotaxis
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Neutrophil Neutrophil Chasing a Bacterium: The Chasing a Bacterium: The Great Themes of Biology Great Themes of Biology How do cells decide? How do cells move? How do cells differentiate into different types?
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A Cell's Sense of Direction Carole A. Parent and Peter N. Devreotes Neutrophil Chemotaxis
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lMacrophage lMacrophage Performing Performing Phagocytosis Phagocytosis : More : More Great Themes of Biology Great Themes of Biology How do cells recognize other objects - molecular recognition? How do cells metabolize products from the external world? You can see fluorescent actin being recruited to ( and presumably polymerized near) a 5 micron anti-body coated bead. The 1st step is the formation of a "phagosomal actin cup". That's the fluorescent blob at the base of the 5micron bead. The actin front then works around the perimeter of the bead, to pinch the membrane closed at the opposite end. After the bead is engulfed, the actin filaments then de-polymerize and redistributes through out the cell.
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Leukocyte Rolling Leukocyte Rolling The workings of the immune
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This document was uploaded on 01/03/2012.

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ChemotaxisLecture - How Cells Decide Where to Go: The Case...

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