Fig. 4From: Tissue-resident stem cell activity: a view from the adult Drosophila gastrointestinal tractSignaling networks for the maintenance of homeostasis. a The factors that control ISC division patterns. (b-d) The signaling pathways that control ISC proliferation and differentiation. Many signaling cascades are crucial for ISC proliferative activity and EC specification. Several signaling cascades are associated with EE differentiation. See text for details. The red dotted lines in all the pictures indicate unknownBack to article page