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Determination of the Relative Cell Surface and Total Expression of Recombinant Ion Channels Using Flow Cytometry
Published on: September 28, 2016
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[Calcium-activated chloride channels: structure, properties, role in physiological and pathological processes]
1Institute of Physiologically Active Compounds of the Russian Academy of Sciences, Moscow, Russia.
Biomeditsinskaia Khimiia
|March 1, 2021
Summary
Calcium-activated chloride channels (CaCC), formed by anoctamine 1 (ANO1/TMEM16A), are crucial for physiological functions and implicated in diseases like cancer and hypertension. This review explores compounds that modulate CaCC activity for therapeutic potential.
Area of Science:
- Physiology
- Molecular Biology
- Pharmacology
Background:
- Calcium-activated chloride channels (CaCC) are essential for numerous physiological processes, including Cl- secretion in epithelia and smooth muscle function.
- Anoctamine 1 (ANO1 or TMEM16A) is the protein forming CaCC, and its dysregulation is linked to various pathologies such as cancer, hypertension, asthma, and cystic fibrosis.
- TMEM16A interacts with key signaling pathways like EGFR, MAPK, and TGF-β, highlighting its central role in cellular functions and disease.
Purpose of the Study:
- To review the known natural and synthetic compounds that modulate CaCC currents.
- To summarize the effects of these compounds on pathologies associated with CaCC dysfunction.
- To provide insights into potential therapeutic strategies targeting CaCC.
Main Methods:
- Literature review of studies on CaCC modulators.
- Analysis of the role of TMEM16A and its isoforms in physiological and pathophysiological conditions.
- Summary of compound effects on CaCC activity and related diseases.
Main Results:
- CaCC, primarily anoctamine 1 (TMEM16A), plays a significant role in epithelial secretion, vascular tone, and smooth muscle function.
- TMEM16A is implicated in carcinogenesis, cancer cell proliferation, hypertension, asthma, cystic fibrosis, and gastrointestinal disorders.
- Isoforms like ANO2, ANO6, and ANO5 are involved in olfaction, scrambling activity (Scott syndrome), and muscle/bone diseases, respectively.
- Various natural and synthetic compounds have been identified that can block or modulate CaCC currents.
Conclusions:
- CaCC, particularly TMEM16A, are critical targets for therapeutic intervention in a range of diseases.
- Modulators of CaCC show promise for treating conditions including cancer, hypertension, and respiratory diseases.
- Further research into CaCC-targeting compounds could lead to novel treatment strategies.
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