
eLife 20250609
Coordinated activation and directional migration of adult stem cells are essential for maintaining tissue homeostasis. <i>Drosophila</i> tracheal progenitors are adult stem cells that migrate posteriorly along the dorsal trunk to replenish degenerating branches that disperse the fibroblast growth factor mitogen. However, it is currently unknown how the overall anterior-to-posterior directionality of such migration is controlled. Here, we show that individual progenitor cells migrate together in ...[more]