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REVIEW article

Front. Cell Death

Sec. Non-Apoptotic Regulated Cell Death

Volume 4 - 2025 | doi: 10.3389/fceld.2025.1677498

This article is part of the Research TopicCell Death in DrosophilaView all 4 articles

Sacrificing cells of the cyst: Non-apoptotic cell death in germline cysts via acidification

Provisionally accepted
Shruthi  BandyadkaShruthi Bandyadka1Logan  TohlineLogan Tohline1Georgette-Vanelle  WandjiGeorgette-Vanelle Wandji1Hila  ToledanoHila Toledano2Kimberly  McCallKimberly McCall1*
  • 1Boston University, Boston, United States
  • 2University of Haifa, Haifa, Israel

The final, formatted version of the article will be published soon.

Cell death shapes multicellular organism development and sustains tissue and organ homeostasis. Great progress has been made in understanding the breadth of physiological and biochemical diversity in cell death and clearance pathways, which play vital roles in organismal development and health. While apoptosis and necrosis have been studied extensively across many model systems and contexts, the discovery of non-apoptotic paradigms of cell death and their roles in disease has greatly expanded the field. Collectively called Regulated Cell Death (RCD), these death pathways operate in a tissue and context-dependent manner. Germ cells in many organisms develop in cysts of interconnected cells, and may die in response to environmental or developmental cues. Recent findings suggest that germ cell cysts may use a common mechanism of non-apoptotic cell death involving phagocytic and lysosomal activity of surrounding somatic cells. Cyst cell death has been analyzed most thoroughly in the Drosophila adult ovary and testis, with remarkable similarity to cyst cell death in mouse adult testis and fetal ovary. In this review, we highlight recent progress in deciphering germline cyst cell death.

Keywords: Germline cyst, Ovary, Testis, phagoptosis, Phagocytosis, Drosophila

Received: 31 Jul 2025; Accepted: 14 Oct 2025.

Copyright: © 2025 Bandyadka, Tohline, Wandji, Toledano and McCall. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Kimberly McCall, kmccall@bu.edu

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