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Updated: Jul 16, 2026

Identification of Intracellular Signaling Events Induced in Viable Cells by Interaction with Neighboring Cells Undergoing Apoptotic Cell Death
Published on: December 27, 2016
The beginning of the end: death signaling in early involution
Fiona O Baxter1, Kevin Neoh, Maxine C Tevendale
1Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, UK. fob20@cam.ac.uk
Abstract:
Mammary gland involution occurs in two distinct phases: an early, reversible phase, involving extensive apoptosis of the secretory alveolar epithelium without major changes in gland architecture, and a later, irreversible phase, involving remodelling of the gland to its pre-pregnancy state. Multiple signalling pathways are known to be important during early involution, however the precise triggers remain elusive. This review summarizes the roles of a number of key pathways (NF-kappaB, PI(3)K, Stat3, and TGFbeta) in the first phase of involution.
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