David Piston,Ph.D.Professor and Head, Cell Biology and Physiology

The main research focus of the Piston lab is the understanding of glucose-regulated hormone secretion from islets of Langerhans in the pancreas. To perform live cell measurements in situ and in vivo, his lab develops unique, state-of-the-art fluorescence imaging methods to assay responses along critical signaling pathways in both glucagon-secreting α-cells and insulin-secreting β-cells. These quantitative microscopy measurements are combined with standard biochemical and molecular biological techniques to obtain valuable information that bridges the gap between the known details of the signaling pathways in individual cells and the overall response of a whole islet. Experimental work involves 5D live cell imaging and high-content screening.