Journal
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH
Volume 1868, Issue 7, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.bbamcr.2021.119040
Keywords
Calcium; NAADP; TPC; TRPML; Lysosome; Macrophage; Phagocytosis
Categories
Funding
- BBSRC [BB/T01640X/1]
- BBSRC [BB/T01640X/1] Funding Source: UKRI
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Endo-lysosomes, as ubiquitous Ca2+ stores, play a crucial role in a growing number of processes across various cell types. Studying phagocytosis can provide insights into how endo-lysosomal Ca2+ signals are integrated into biological processes and how they can be influenced by disease or infection.
The emergence of endo-lysosomes as ubiquitous Ca2+ stores with their unique cohort of channels has resulted in their being implicated in a growing number of processes in an ever-increasing number of cell types. The architectural and regulatory constraints of these acidic Ca2+ stores distinguishes them from other larger Ca2+ sources such as the ER and influx across the plasma membrane. In view of recent advances in the understanding of the modes of operation, we discuss phagocytosis as a template for how endo-lysosomal Ca2+ signals (generated via TPC and TRPML channels) can be integrated in multiple sophisticated ways into biological processes. Phagocytosis illustrates how different endo-lysosomal Ca2+ signals drive different phases of a process, and how these can be altered by disease or infection.
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