The timing of the border cell migration along with egg chamber development is coordinated by Ecdysone, a steroid hormone, which functions through Taiman, Ecdysone receptor and ultraspiracle receptors. These cells migrate as a free group by means of transient cell-cell adhesions, further initiating signaling cascades that regulate expression of cytoskeletal components and triggers cellular extensions enabling forward movement. The invasive movement of the cluster towards the posteriorly located oocyte is followed by the off-centred movement towards the dorsal side of the egg chamber.
The timing of border cell migration, along with egg chamber development, is regulated by Ecdysone, a steroid hormone, which acts through Taiman, Ecdysone receptor and ultraspiracle receptors. These cells migrate as a free group via transient cell-cell adhesions, further initiating signaling cascades that regulate the expression of cytoskeletal components and trigger cellular extensions enabling forward movement. The invasive movement of the cluster towards the posteriorly located oocyte is followed by off-centered movement towards the dorsal side of the egg chamber.