Lung Cells

Lung cells

 

Endothelial cells, from the lining of blood vessels in the lungs, are shown in exquisite detail by the technique of immuno-fluorescence microscopy. The sample has been treated with antibodies that bind to specific proteins within parts of the cell and with dyes that bind to these specific antibodies. Each dye has its own fluorescence colour, so when illuminated by ultraviolet light the colours show the location of each target protein. Here, purple dye has attached to proteins in the cell nuclei, blue dye shows actin filaments that form the structural cytoskeleton and yellow shows the mitochondria that generate energy for the cell.

Image © Dr Torsten Wittmann

 

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