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Deciphering the Role of Endolysosomal Ca2+ Channels in Immunity
Abeer F Alharbi1,2, John Parrington1
1Department of Pharmacology, University of Oxford, Oxford, United Kingdom.
Insights
Endolysosomal calcium (Ca2+) signaling, involving channels like TPCs, TRPMLs, and P2X4R, is crucial for immune responses. Further research is needed to target these channels for autoimmune and inflammatory diseases.
Area of Science:
- Immunology
- Cell Biology
- Molecular Biology
Background:
- Endolysosomal calcium (Ca2+) signaling is increasingly recognized for its role in immunity.
- Specific channels like TPCs, TRPMLs, and P2X4R are implicated in immune cell functions.
Purpose of the Study:
- To review the current understanding of endolysosomal Ca2+ channels in innate and adaptive immunity.
- To highlight the potential of these channels as therapeutic targets for immune-related diseases.
Main Methods:
- Literature review and synthesis of existing biomedical and translational data.
- Discussion of physiological processes involving endolysosomal Ca2+ channels in immune cells.
Main Results:
- Endolysosomal Ca2+ channels significantly regulate phagocytosis, inflammation, cytokine release, and immune cell activation/migration.
- There is a notable lack of clinical studies in this area.
Conclusions:
- Endolysosomal Ca2+ channels play critical roles in immune cell function and the regulation of immune responses.
- Further investigation is warranted to explore these channels as biomarkers and therapeutic targets for inflammatory and autoimmune diseases.
Abstract:
The role of endolysosomal Ca2+ signalling in immunity has been a subject of increasing interest in recent years. Here, we discuss evolving knowledge relating to the contribution of endolysosomal Ca2+ channels that include TPCs, TRPMLs, and P2X4R in physiological processes related to innate and adaptive immunity-including phagocytosis, inflammation, cytokine/chemokine release, dendritic, natural killer, and T cell activation and migration-and we underscore the paucity of clinical studies in this field. Emerging biomedical and translational data have led to important new insights into the critical roles of these channels in immune cell function and the regulation of innate and adaptive immune responses. The evolving immunological significance of endolysosomal Ca2+ signalling warrants further investigations to better characterize the roles of these channels in immunity in order to expand our knowledge about the pathology of inflammatory and autoimmune diseases and develop endolysosomal Ca2+ channels as viable biomarkers and therapeutic and preventive targets for remodelling the immune response.
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