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Updated: Jul 9, 2025

Author Spotlight: Exploring the Role of Ion Channels in Cancer: Characterization and Potential Treatment Approaches
Published on: June 16, 2023
Orai1 Ca2+ channel modulators as therapeutic tools for treating cancer: Emerging evidence!
Olivier Mignen1, Jean-Pierre Vannier2, Pascale Schneider2
1LBAI, UMR1227, Univ Brest, Inserm, Brest, France.
Abstract:
In non-excitable cells, Orai proteins represent the main channel for Store-Operated Calcium Entry (SOCE), and also mediate various store-independent Calcium Entry (SICE) pathways. Deregulation of these pathways contribute to increased tumor cell proliferation, migration, metastasis, and angiogenesis. Among Orais, Orai1 is an attractive therapeutic target explaining the development of specific modulators. Therapeutic trials using Orai1 channel inhibitors have been evaluated for treating diverse diseases such as psoriasis and acute pancreatitis, and emerging data suggest that Orai1 channel modulators may be beneficial for cancer treatment. This review discusses herein the importance of Orai1 channel modulators as potential therapeutic tools and the added value of these modulators for treating cancer.
Insights
Orai1 channel modulators show promise for cancer treatment by targeting calcium entry pathways. These modulators offer potential therapeutic benefits for various cancers, impacting cell proliferation and metastasis.
Area of Science:
- Biochemistry
- Cell Biology
- Pharmacology
Background:
- Orai proteins are crucial for calcium entry in non-excitable cells, regulating Store-Operated Calcium Entry (SOCE) and store-independent Calcium Entry (SICE) pathways.
- Dysregulation of these calcium signaling pathways is linked to increased tumor cell proliferation, migration, metastasis, and angiogenesis.
- Orai1, a key Orai protein, is recognized as a significant therapeutic target for various diseases.
Purpose of the Study:
- To review the significance of Orai1 channel modulators as potential therapeutic agents.
- To highlight the therapeutic value of Orai1 modulators in the context of cancer treatment.
- To discuss the role of Orai1 in cancer progression and its potential as a drug target.
Main Methods:
- Literature review of studies on Orai1 function, calcium signaling, and therapeutic applications.
- Analysis of existing data on Orai1 inhibitors and modulators in preclinical and clinical settings.
- Synthesis of information regarding the impact of Orai1 on cancer hallmarks.
Main Results:
- Orai1 channel inhibitors have been investigated in therapeutic trials for conditions like psoriasis and pancreatitis.
- Emerging evidence indicates that Orai1 channel modulators may possess anti-cancer properties.
- Targeting Orai1 offers a potential strategy to inhibit tumor growth and metastasis.
Conclusions:
- Orai1 channel modulators represent a promising class of therapeutic tools.
- The modulation of Orai1 channels holds significant potential for the development of novel cancer therapies.
- Further research into Orai1 modulators could lead to effective treatments for various cancers.
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