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Transmembrane Chloride Intracellular Channel 1 (tmCLIC1) as a Potential Biomarker for Personalized Medicine
Francesca Cianci1, Ivan Verduci1
1Department of Biosciences, University of Milan, 20133 Milan, Italy.
Abstract:
Identification of potential pathological biomarkers has proved to be essential for understanding complex and fatal diseases, such as cancer and neurodegenerative diseases. Ion channels are involved in the maintenance of cellular homeostasis. Moreover, loss of function and aberrant expression of ion channels and transporters have been linked to various cancers, and to neurodegeneration. The Chloride Intracellular Channel 1 (CLIC1), CLIC1 is a metamorphic protein belonging to a partially unexplored protein superfamily, the CLICs. In homeostatic conditions, CLIC1 protein is expressed in cells as a cytosolic monomer. In pathological states, CLIC1 is specifically expressed as transmembrane chloride channel. In the following review, we trace the involvement of CLIC1 protein functions in physiological and in pathological conditions and assess its functionally active isoform as a potential target for future therapeutic strategies.
Insights
Chloride Intracellular Channel 1 (CLIC1) shifts from a cytosolic monomer to a transmembrane channel in disease. This review explores CLIC1
Area of Science:
- Molecular biology and cellular physiology
- Biomarker discovery for complex diseases
Background:
- Ion channels are crucial for cellular homeostasis.
- Dysregulation of ion channels is linked to cancer and neurodegeneration.
- Chloride Intracellular Channel 1 (CLIC1) is a metamorphic protein within the CLIC superfamily.
Purpose of the Study:
- To review the physiological and pathological roles of CLIC1.
- To assess the potential of CLIC1 as a therapeutic target.
Main Methods:
- Literature review of CLIC1 protein function.
- Analysis of CLIC1 expression in homeostatic and pathological conditions.
Main Results:
- CLIC1 exists as a cytosolic monomer in normal conditions.
- CLIC1 transitions to a transmembrane chloride channel during pathological states.
- Aberrant CLIC1 function is implicated in diseases like cancer and neurodegeneration.
Conclusions:
- CLIC1 exhibits distinct isoforms depending on cellular state.
- The functionally active, transmembrane CLIC1 isoform presents a potential therapeutic target.
- Further research into CLIC1 modulation may yield novel treatment strategies.
