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Updated: Feb 25, 2026

Author Spotlight: Exploring the Role of Ion Channels in Cancer: Characterization and Potential Treatment Approaches
Published on: June 16, 2023
Voltage-gated calcium channels: Novel targets for cancer therapy
Nam Nhut Phan1, Chih-Yang Wang2,3,4, Chien-Fu Chen5
1Faculty of Applied Sciences, Ton Duc Thang University, Tan Phong Ward, Ho Chi Minh 700000, Vietnam.
Abstract:
Voltage-gated calcium channels (VGCCs) comprise five subtypes: The L-type; R-type; N-type; P/Q-type; and T-type, which are encoded by α1 subunit genes. Calcium ion channels also have confirmed roles in cellular functions, including mitogenesis, proliferation, differentiation, apoptosis and metastasis. An association between VGCCs, a reduction in proliferation and an increase in apoptosis in prostate cancer cells has also been reported. Therefore, in the present study, the online clinical database Oncomine was used to identify the alterations in the mRNA expression level of VGCCs in 19 cancer subtypes. Overall, VGCC family genes exhibited under-expression in numerous types of cancer, including brain, breast, kidney and lung cancers. Notably, the majority of VGCC family members (CACNA1C, CACNA1D, CACNA1A, CACNA1B, CACNA1E, CACNA1H and CACNA1I) exhibited low expression in brain tumors, with mRNA expression levels in the top 1-9% of downregulated gene rankings. A total of 5 VGCC family members (CACNA1A, CACNA1B, CACNA1E, CACNA1G and CACNA1I) were under-expressed in breast cancer, with a gene ranking in the top 1-10% of the low-expressed genes compared with normal tissue. In kidney and lung cancers, CACNA1S, CACNA1C, CACNA1D, CACNA1A and CACNA1H exhibited low expression, with gene rankings in the top 1-8% of downregulated genes. In conclusion, the present findings may contribute to the development of new cancer treatment approaches by identifying target genes involved in specific types of cancer.
Insights
Voltage-gated calcium channels (VGCCs) are downregulated in many cancers, including brain, breast, kidney, and lung. This suggests VGCCs may be potential therapeutic targets for cancer treatment.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Voltage-gated calcium channels (VGCCs) are crucial for cellular functions like proliferation and apoptosis.
- Previous studies suggest a link between VGCCs, reduced proliferation, and increased apoptosis in prostate cancer cells.
Purpose of the Study:
- To investigate alterations in mRNA expression levels of VGCCs across 19 cancer subtypes.
- To identify potential cancer-specific VGCC targets for novel therapeutic strategies.
Main Methods:
- Utilized the Oncomine clinical database to analyze mRNA expression data.
- Compared VGCC gene expression in various cancer types against normal tissues.
Main Results:
- VGCC family genes were found to be significantly underexpressed in multiple cancers, including brain, breast, kidney, and lung.
- Specific VGCC subtypes (e.g., CACNA1C, CACNA1D, CACNA1A) showed marked downregulation in brain, breast, kidney, and lung tumors.
Conclusions:
- The observed downregulation of VGCCs in various cancers highlights their potential role in tumorigenesis.
- Identifying specific downregulated VGCCs offers promising avenues for developing targeted cancer therapies.
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