MSP-tracker: A versatile vesicle tracking software tool used to reveal the spatial control of polarized secretion in Drosophila epithelial cells

How specific cargos are targeted to the apical and basolateral domains within epithelial cells is still unclear. This study develops a vesicle tracking software (MSP-tracker) and uses it to show that the secretory pathway in Drosophila follicle cells is more spatially organized than previously thought.