期刊
EUROPEAN BIOPHYSICS JOURNAL WITH BIOPHYSICS LETTERS
卷 45, 期 7, 页码 621-633出版社
SPRINGER
DOI: 10.1007/s00249-016-1144-z
关键词
Cancer; Calcium channels; Repurposed drugs
类别
资金
- Medical Research Council [MR/M012425/1] Funding Source: Medline
- MRC [MR/M012425/1] Funding Source: UKRI
- Medical Research Council [MR/M012425/1] Funding Source: researchfish
The importance of ion channels in the hallmarks of many cancers is increasingly recognised. This article reviews current knowledge of the expression of members of the voltage-gated calcium channel family (Ca-V) in cancer at the gene and protein level and discusses their potential functional roles. The ten members of the Ca-V channel family are classified according to expression of their poreforming alpha-subunit; moreover, co-expression of accessory alpha 2 delta, beta and gamma confers a spectrum of biophysical characteristics including voltage dependence of activation and inactivation, current amplitude and activation/inactivation kinetics. Ca-V channels have traditionally been studied in excitable cells including neurones, smooth muscle, skeletal muscle and cardiac cells, and drugs targeting the channels are used in the treatment of hypertension and epilepsy. There is emerging evidence that several Ca-V channels are differentially expressed in cancer cells compared to their normal counterparts. Interestingly, a number of Ca-V channels also have non-canonical functions and are involved in transcriptional regulation of the expression of other proteins including potassium channels. Pharmacological studies show that Ca-V canonical function contributes to the fundamental biology of proliferation, cell-cycle progression and apoptosis. This raises the intriguing possibility that calcium channel blockers, approved for the treatment of other conditions, could be repurposed to treat particular cancers. Further research will reveal the full extent of both the canonical and non-canonical functions of Ca-V channels in cancer and whether calcium channel blockers are beneficial in cancer treatment.
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