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Rain BD, Plourde‐Kelly AD, Lafrenie RM, Dotta BT. Induction of apoptosis in B16-BL6 melanoma cells following exposure to electromagnetic fields modeled after intercellular calcium waves. FEBS Open Bio 2024; 14:515-524. [PMID: 38143305 PMCID: PMC10909972 DOI: 10.1002/2211-5463.13760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 11/08/2023] [Accepted: 12/22/2023] [Indexed: 12/26/2023] Open
Abstract
Exposure to time-varying electromagnetic fields (EMF) has the capacity to influence biological systems. Our results demonstrate that exposure to time-varying EMF modeled after the physiological firing frequency of intercellular calcium waves can inhibit proliferation and induce apoptosis in malignant cells. Single exposure of B16-BL6 cells to a Ca2+ EMF for 40 min reduced the number of viable cells by 50.3%. Cell imaging with acridine orange and ethidium bromide dye revealed substantial cellular apoptosis, preapoptotic cells, nuclear fragmentation, and large spacing between cells in the Ca2+ EMF condition when compared to the control condition. The ability of Ca2+ EMF to influence the proliferation and survival of malignant cells suggests that exposure to specific EMF may function as a potential anticancer therapy.
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Affiliation(s)
- Benjamin D. Rain
- Behavioural Neuroscience & Biology Programs, School of Natural ScienceLaurentian UniversitySudburyONCanada
| | - Adam D. Plourde‐Kelly
- Behavioural Neuroscience & Biology Programs, School of Natural ScienceLaurentian UniversitySudburyONCanada
| | - Robert M. Lafrenie
- Behavioural Neuroscience & Biology Programs, School of Natural ScienceLaurentian UniversitySudburyONCanada
| | - Blake T. Dotta
- Behavioural Neuroscience & Biology Programs, School of Natural ScienceLaurentian UniversitySudburyONCanada
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2
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Ismatullah H, Jabeen I, Kiani YS. Structural and functional insight into a new emerging target IP 3R in cancer. J Biomol Struct Dyn 2024; 42:2170-2196. [PMID: 37070253 DOI: 10.1080/07391102.2023.2201332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 04/05/2023] [Indexed: 04/19/2023]
Abstract
Calcium signaling has been identified as an important phenomenon in a plethora of cellular processes. Inositol 1,4,5-trisphosphate receptors (IP3Rs) are ER-residing intracellular calcium (Ca2+) release channels responsible for cell bioenergetics by transferring calcium from the ER to the mitochondria. The recent availability of full-length IP3R channel structure has enabled the researchers to design the IP3 competitive ligands and reveal the channel gating mechanism by elucidating the conformational changes induced by ligands. However, limited knowledge is available for IP3R antagonists and the exact mechanism of action of these antagonists within a tumorigenic environment of a cell. Here in this review a summarized information about the role of IP3R in cell proliferation and apoptosis has been discussed. Moreover, structure and gating mechanism of IP3R in the presence of antagonists have been provided in this review. Additionally, compelling information about ligand-based studies (both agonists and antagonists) has been discussed. The shortcomings of these studies and the challenges toward the design of potent IP3R modulators have also been provided in this review. However, the conformational changes induced by antagonists for channel gating mechanism still display some major drawbacks that need to be addressed. However, the design, synthesis and availability of isoform-specific antagonists is a rather challenging one due to intra-structural similarity within the binding domain of each isoform. HighlightsThe intricate complexity of IP3R's in cellular processes declares them an important target whereby, the recently solved structure depicts the receptor's potential involvement in a complex network of processes spanning from cell proliferation to cell death.Pharmacological inhibition of IP3R attenuates the proliferation or invasiveness of cancers, thus inducing necrotic cell death.Despite significant advancements, there is a tremendous need to design new potential hits to target IP3R, based upon 3D structural features and pharmacophoric patterns.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Humaira Ismatullah
- Department of Sciences, School of Interdisciplinary Engineering and Sciences (SINES), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Ishrat Jabeen
- Department of Sciences, School of Interdisciplinary Engineering and Sciences (SINES), National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Yusra Sajid Kiani
- Department of Sciences, School of Interdisciplinary Engineering and Sciences (SINES), National University of Sciences and Technology (NUST), Islamabad, Pakistan
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3
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Du NH, Ngoc TTB, Cang HQ, Luyen NTT, Thuoc TL, Le Quan T, Thao DTP. KTt-45, a T-type calcium channel blocker, acts as an anticancer agent by inducing apoptosis on HeLa cervical cancer cell line. Sci Rep 2023; 13:22092. [PMID: 38086845 PMCID: PMC10716508 DOI: 10.1038/s41598-023-47199-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 11/10/2023] [Indexed: 12/18/2023] Open
Abstract
The abnormal expression in the T-type calcium channels is involved in various cancer types, thus inhibiting T-type calcium channels is one of approaches in cancer treatment. The fact that KTt-45 acted as a T-type calcium channel inhibitor as well as a pain-relief agent prompts us to address if KTt-45 plays any role against cancer cells. The results showed that KTt-45 caused cytotoxic effects towards HeLa cervical, Raji lymphoma, MCF-7 breast cancer, and A549 lung cancer cell lines with IC50 values less than 100 μM, in which highly selective toxicity was against HeLa cells (IC50 = 37.4 μM, SI > 3.2). Strikingly, the KTt-45 induced an accumulation of cytoplasmic vacuoles after 48 h treatment and mitochondrial-dependent apoptosis activation as evidenced by morphological features, chromatin condensation, nuclear fragmentation, and significant activation of caspase-9 as well as caspase-3. In conclusion, KTt-45 could inhibit cell growth and trigger mitochondrial-dependent apoptosis in HeLa cervical cancer cells. The results, taken together, strongly demonstrated that KTt-45 is a potential agent for further study on anticancer drug development which not only targets cancer cells but also helps to relieve neuropathic pain in cancer patients.
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Affiliation(s)
- Nguyen Huy Du
- Department of Molecular and Environmental Biotechnology, Faculty of Biology and Biotechnology, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
- Laboratory of Cancer Research, VNU-HCM, University of Science, Duong so 4, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Central Laboratory of Analysis, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
| | - Truong Thi Bich Ngoc
- Department of Molecular and Environmental Biotechnology, Faculty of Biology and Biotechnology, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
- Laboratory of Cancer Research, VNU-HCM, University of Science, Duong so 4, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
| | - Huynh Qui Cang
- Laboratory of Cancer Research, VNU-HCM, University of Science, Duong so 4, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
| | - Nguyen Thi Thuy Luyen
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Central Laboratory of Analysis, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
- Department of Hydro-Geology-Engineering Geology and Environmental Geology, Faculty of Geology, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
- Department of Medicinal Chemistry, Faculty of Chemistry, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
| | - Tran Linh Thuoc
- Laboratory of Cancer Research, VNU-HCM, University of Science, Duong so 4, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
| | - Tran Le Quan
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam
- Central Laboratory of Analysis, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
- Department of Hydro-Geology-Engineering Geology and Environmental Geology, Faculty of Geology, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
- Department of Medicinal Chemistry, Faculty of Chemistry, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam
| | - Dang Thi Phuong Thao
- Department of Molecular and Environmental Biotechnology, Faculty of Biology and Biotechnology, VNU-HCM, University of Science, 227 Nguyen Van Cu, Ho Chi Minh City, 700000, Vietnam.
- Laboratory of Cancer Research, VNU-HCM, University of Science, Duong so 4, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam.
- Vietnam National University, Ho Chi Minh City, Vo Truong Toan, Linh Trung, Thu Duc, Ho Chi Minh City, 700000, Vietnam.
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4
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Xu S, Li X, Geng J, Cao Y, Yu Y, Qi L. Sec61γ is a vital protein in the endoplasmic reticulum membrane promoting tumor metastasis and invasion in lung adenocarcinoma. Br J Cancer 2023; 128:1478-1490. [PMID: 36759724 PMCID: PMC10070493 DOI: 10.1038/s41416-023-02150-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 12/01/2022] [Accepted: 01/11/2023] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND Lung adenocarcinoma (LUAD) is one of the most common malignant tumors worldwide. Finding effective prognostic markers and therapeutic targets is of great significance for controlling metastasis and invasion clinically. METHODS The open copy-number aberrations and gene expression datasets were analysed, and the data of 102 LUAD patients was used for further validation. The cell proliferation, colony formation, migration, invasion assays and mice tumor models were used to detect the function of SEC61G. The epidermal growth factor receptor (EGFR) pathway was also detected to find the mechanism of Sec61γ. RESULTS Based on the open datasets, we found that the high level of SEC61G mRNA may drive LUAD metastasis. Furthermore, the overexpression of Sec61γ protein was significantly associated with poor prognosis and greater tumor cell proliferation and metastasis. The SEC61G knockdown could inhibit the EGFR pathway, including STAT3, AKT and PI3K, which can be reversed by Sec61γ overexpression and epithelial growth factor (EGF) supplement. CONCLUSIONS Sec61γ promoted the proliferation, metastasis, and invasion of LUAD through EGFR pathways. Sec61γ might be a potential target for the treatment of LUAD metastases.
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Affiliation(s)
- Shanqi Xu
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Xin Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - Jianxiong Geng
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yingyue Cao
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yan Yu
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China.
| | - Lishuang Qi
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China.
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5
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Human cancer cells generate spontaneous calcium transients and intercellular waves that modulate tumor growth. Biomaterials 2022; 290:121823. [DOI: 10.1016/j.biomaterials.2022.121823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 09/24/2022] [Indexed: 11/02/2022]
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6
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Jin Y, Han Y, Yang S, Cao J, Jiang M, Liang J. Endoplasmic reticulum-resident protein Sec62 drives colorectal cancer metastasis via MAPK/ATF2/UCA1 axis. Cell Prolif 2022; 55:e13253. [PMID: 36200182 DOI: 10.1111/cpr.13253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/09/2022] [Accepted: 04/26/2022] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE Metastasis is responsible for the poor prognosis of patients with colorectal cancer (CRC), and the role of aberrant expression of endoplasmic reticulum (ER) receptors in tumour metastasis has not been fully elucidated. The aim of the study is to ensure the role of ER-resident protein Sec62 in CRC metastasis and illuminate associated molecular mechanisms. MATERIALS AND METHODS Bioinformatics analysis, qRT-PCR, western blot and immunohistochemistry assays were performed to evaluate the expression level and clinical significance of Sec62 in CRC. The specific role of Sec62 in CRC was identified by a series of functional experiments. We conducted RNA sequencing and rescue experiments to analyse the differentially expressed genes and identified UCA1 as a novel pro-metastasis target of Sec62 in CRC. Besides, the efficacy of MAPK/JNK inhibitor or agonist on Sec62-mediated CRC metastasis was evaluated by trans-well and wound healing assays. Finally, luciferase reporter and ChIP assay were employed to further explore the potential mechanisms. RESULTS The abnormally elevated expression of Sec62 predicted poor prognosis of CRC patients and facilitated malignant metastasis of CRC cells. Mechanistically, Sec62 enhanced UCA1 expression through activating MAPK/JNK signalling pathway. And the p-JNK activating ATF2 could transcriptionally regulate UCA1 expression. Furthermore, blocking or activating MAPK/JNK signalling with JNK inhibitor or agonist potently suppressed or enhanced Sec62 mediated CRC metastatic process. CONCLUSIONS Our study reports for the first time that the Sec62/MAPK/ATF2 /UCA1 axis exists in CRC metastatic process, which could be a potential treatment target of metastatic CRC.
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Affiliation(s)
- Yirong Jin
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Medical University, Xi'an, China
| | - Yuying Han
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Medical University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Medicine, Northwest University, Xi'an, China
| | - Suzhen Yang
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Medical University, Xi'an, China.,Department of Digestive Disease and Gastrointestinal Motility Research Room, The Second Affiliated Hospital of Xian Jiaotong University, Xi'an, China
| | - Jiayi Cao
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Medical University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education. School of Medicine, Northwest University, Xi'an, China
| | - Mingzuo Jiang
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Medical University, Xi'an, China.,Department of Gastroenterology and Hepatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jie Liang
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Medical University, Xi'an, China
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7
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Linxweiler M, Müller CSL. Role of the SEC62 gene in dermato-oncology - impact on tumor cell biology, prognostication, and personalized therapy management. J Dtsch Dermatol Ges 2022; 20:1187-1199. [PMID: 36067526 DOI: 10.1111/ddg.14817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/19/2022] [Indexed: 11/27/2022]
Abstract
The SEC62 gene encodes for a transmembrane protein of the endoplasmic reticulum (ER). Sec62 protein is involved in the post-translational transport of secretory and membrane-bound proteins in eukaryotic cells, regulates intracellular calcium homeostasis through direct interaction with the Sec61 channel and makes a decisive contribution to the cellular compensation of ER stress in the context of recovER-phagy. A significantly increased expression of the SEC62 gene has already been demonstrated in various tumor entities. First approaches of a targeted therapy have been tested for various tumor entities in vitro and in vivo with promising results that motivate further preclinical and clinical studies. Nevertheless, many questions remain unanswered, in particular with regard to the molecular mechanisms underlying the observed clinical effects, and require further investigation in future studies. The protein also plays a relevant role in dermato-oncology. The overexpression of SEC62 in atypical fibroxanthomas and malignant melanomas has already been demonstrated and a correlation of SEC62 expression with various clinical and pathological features has been observed. Future studies, especially in vivo and clinical, will show whether Sec62 can be established as a prognostic marker in dermato-oncology and whether it can serve as a starting point for targeted therapy.
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Affiliation(s)
- Maximilian Linxweiler
- Department of Otorhinolaryngology, Head and Neck Surgery, Saarland University Medical Center, Homburg, Germany
| | - Cornelia S L Müller
- Medical Supply Center for Histology, Cytology and Molecular Diagnostics Trier GmbH, Trier, Germany
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8
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Linxweiler M, Müller CSL. Rolle des SEC62-Gens in der Dermatoonkologie - Relevanz für die Tumorzellbiologie, Prognoseeinschätzung und personalisierte Therapieplanung. J Dtsch Dermatol Ges 2022; 20:1187-1200. [PMID: 36162019 DOI: 10.1111/ddg.14817_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/19/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Maximilian Linxweiler
- Klinik für Hals-, Nasen- und Ohrenheilkunde, Kopf- und Hals-Chirurgie, Universitätsklinikum des Saarlandes, Homburg
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9
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Ragab Ibrahim FA, Naser Hussein ZU, Yousef AI, Abd El Moneim NA, Hussein AM, Ahmed AFM, Ragab NM, Al-Masry O. Insights on possible interplay between epithelial-mesenchymal transition and T-type voltage gated calcium channels genes in metastatic breast carcinoma. Heliyon 2022; 8:e10160. [PMID: 36060991 PMCID: PMC9434037 DOI: 10.1016/j.heliyon.2022.e10160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 05/22/2022] [Accepted: 07/27/2022] [Indexed: 12/24/2022] Open
Abstract
Breast cancer (BC) is the most common life-threatening malignancy amongst women with high incidence worldwide. In Egypt, it is the most known malignancy amongst females. Epithelial-mesenchymal transition (EMT) participates in breast tumors’ invasiveness, and metastasis, but the process is poorly understood. The involvement of voltage-gated calcium channels signaling in EMT has not yet been fully explored. Therefore, the aim of this study was to investigate the possible role of T-type calcium channels in metastasis and EMT among breast cancer patients. The study was carried out on 48 female breast cancer patients who were divided into two groups; metastatic and non-metastatic. qRT-PCR was employed to measure the expression of EMT marker genes (N- cadherin, E-cadherin, Snail, Vimentin and T-type VGCCs genes (CACNA1G, CACNA1H, and CACNA1I). The results of the present study revealed differential expression of the EMT marker genes in blood and tissue of non-metastatic and metastatic breast cancer patients, with a clear tendency for the mesenchymal markers to be significantly elevated in metastatic patients as well as malignant tissues taken from non-metastatic patients as compared to their paired tumor adjacent normal (TAN) tissue. Both CACNA1H and CACNA1I (T-type VGCCs oncogenes) were significantly elevated in blood of metastatic patients when compared to non-metastatic ones. In contrast, CACNA1G (tumor suppressor) exhibited a significant decrease in metastatic patients. The strong correlation between the expression of T-type VGCCs and mesenchymal marker genes in metastatic breast cancer patients casts light on the role of T-type VGCCs in metastasis and their involved in tumor invasiveness.
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10
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Satarić M, Nemeš T, Tuszynski J. Decoding the Bell-Shaped Calcium Spikes in Phosphorylation Cycles of Flagella. Int J Mol Sci 2022; 23:ijms23073760. [PMID: 35409111 PMCID: PMC8998650 DOI: 10.3390/ijms23073760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/15/2022] [Accepted: 03/23/2022] [Indexed: 11/16/2022] Open
Abstract
We investigate the messenger role of calcium ions implicated in the regulation of wave-like bending dynamics of flagella. The emphasis is on microtubules of flagellar axoneme serving as nonlinear transmission lines for bell-shaped spikes of calcium ions. The calcium sensitive proteins, such as calmodulin, exhibit activation dependence on the spike train frequency and amplitude. Here, we analyze a Ca2+ decoding module IDA-I1 whose activity is controlled by Ca2+ activated kinase. We find that trains of Ca2+ spikes are advantageous compared to a constant rise in Ca2+ concentration as being more efficient and much less prone to noisy fluctuations.
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Affiliation(s)
- Miljko Satarić
- Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, Serbia; (M.S.); (T.N.)
- Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia
| | - Tomas Nemeš
- Faculty of Technical Sciences, University of Novi Sad, 21000 Novi Sad, Serbia; (M.S.); (T.N.)
| | - Jack Tuszynski
- Department of Physics, University of Alberta, Edmonton, AB T6G 2R3, Canada
- Correspondence:
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11
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Liang C, Huang M, Li T, Li L, Sussman H, Dai Y, Siemann DW, Xie M, Tang X. Towards an integrative understanding of cancer mechanobiology: calcium, YAP, and microRNA under biophysical forces. SOFT MATTER 2022; 18:1112-1148. [PMID: 35089300 DOI: 10.1039/d1sm01618k] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
An increasing number of studies have demonstrated the significant roles of the interplay between microenvironmental mechanics in tissues and biochemical-genetic activities in resident tumor cells at different stages of tumor progression. Mediated by molecular mechano-sensors or -transducers, biomechanical cues in tissue microenvironments are transmitted into the tumor cells and regulate biochemical responses and gene expression through mechanotransduction processes. However, the molecular interplay between the mechanotransduction processes and intracellular biochemical signaling pathways remains elusive. This paper reviews the recent advances in understanding the crosstalk between biomechanical cues and three critical biochemical effectors during tumor progression: calcium ions (Ca2+), yes-associated protein (YAP), and microRNAs (miRNAs). We address the molecular mechanisms underpinning the interplay between the mechanotransduction pathways and each of the three effectors. Furthermore, we discuss the functional interactions among the three effectors in the context of soft matter and mechanobiology. We conclude by proposing future directions on studying the tumor mechanobiology that can employ Ca2+, YAP, and miRNAs as novel strategies for cancer mechanotheraputics. This framework has the potential to bring insights into the development of novel next-generation cancer therapies to suppress and treat tumors.
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Affiliation(s)
- Chenyu Liang
- Department of Mechanical & Aerospace Engineering, Herbert Wertheim College of Engineering (HWCOE), Gainesville, FL, 32611, USA.
- UF Health Cancer Center (UFHCC), Gainesville, FL, 32611, USA
| | - Miao Huang
- Department of Mechanical & Aerospace Engineering, Herbert Wertheim College of Engineering (HWCOE), Gainesville, FL, 32611, USA.
- UF Health Cancer Center (UFHCC), Gainesville, FL, 32611, USA
| | - Tianqi Li
- UF Health Cancer Center (UFHCC), Gainesville, FL, 32611, USA
- Department of Biochemistry and Molecular Biology, College of Medicine (COM), Gainesville, FL, 32611, USA.
| | - Lu Li
- UF Health Cancer Center (UFHCC), Gainesville, FL, 32611, USA
- Department of Biochemistry and Molecular Biology, College of Medicine (COM), Gainesville, FL, 32611, USA.
| | - Hayley Sussman
- Department of Radiation Oncology, COM, Gainesville, FL, 32611, USA
| | - Yao Dai
- UF Health Cancer Center (UFHCC), Gainesville, FL, 32611, USA
- UF Genetics Institute (UFGI), University of Florida (UF), Gainesville, FL, 32611, USA
| | - Dietmar W Siemann
- UF Health Cancer Center (UFHCC), Gainesville, FL, 32611, USA
- UF Genetics Institute (UFGI), University of Florida (UF), Gainesville, FL, 32611, USA
| | - Mingyi Xie
- UF Health Cancer Center (UFHCC), Gainesville, FL, 32611, USA
- Department of Biochemistry and Molecular Biology, College of Medicine (COM), Gainesville, FL, 32611, USA.
- Department of Biomedical Engineering, College of Engineering (COE), University of Delaware (UD), Newark, DE, 19716, USA
| | - Xin Tang
- Department of Mechanical & Aerospace Engineering, Herbert Wertheim College of Engineering (HWCOE), Gainesville, FL, 32611, USA.
- UF Health Cancer Center (UFHCC), Gainesville, FL, 32611, USA
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Panda S, Chatterjee O, Roy L, Chatterjee S. Targeting Ca 2+ signaling: A new arsenal against cancer. Drug Discov Today 2021; 27:923-934. [PMID: 34793973 DOI: 10.1016/j.drudis.2021.11.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/24/2021] [Accepted: 11/11/2021] [Indexed: 02/06/2023]
Abstract
The drug resistance of cancer cells is a major concern in medical oncology, resulting in the failure of chemotherapy. Ca2+ plays a pivotal role in inducing multidrug resistance in cancer cells. Calcium signaling is a critical regulator of many cancer hallmarks, such as angiogenesis, invasiveness, and migration. In this review, we describe the involvement of Ca2+ signaling and associated proteins in cancer progression and in the development of multidrug resistance in cancer cells. We also highlight the possibilities and challenges of targeting the Ca2+ channels, transporters, and pumps involved in Ca2+ signaling in cancer cells through structure-based drug design. This work will open a new therapeutic window to be used against cancer in upcoming years.
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Affiliation(s)
- Suman Panda
- Department of Biophysics, Bose Institute, P-1/12 CIT Road, Scheme VIIM, Kankurgachi, Kolkata 700054, India
| | - Oishika Chatterjee
- Department of Biophysics, Bose Institute, P-1/12 CIT Road, Scheme VIIM, Kankurgachi, Kolkata 700054, India
| | - Laboni Roy
- Department of Biophysics, Bose Institute, P-1/12 CIT Road, Scheme VIIM, Kankurgachi, Kolkata 700054, India
| | - Subhrangsu Chatterjee
- Department of Biophysics, Bose Institute, P-1/12 CIT Road, Scheme VIIM, Kankurgachi, Kolkata 700054, India.
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Feng M, Duan R, Gao Y, Zhang H, Qiao Y, Li Q, Zhao F. Role of Epstein-Barr Virus and Human Papillomavirus Coinfection in Cervical Intraepithelial Neoplasia in Chinese Women Living With HIV. Front Cell Infect Microbiol 2021; 11:703259. [PMID: 34557425 PMCID: PMC8453025 DOI: 10.3389/fcimb.2021.703259] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 08/19/2021] [Indexed: 01/04/2023] Open
Abstract
Given that only a small percentage of human papillomavirus (HPV)-positive women develop cancer, HPV is necessary but insufficient for carcinogenesis. Mucosally transmitted viral cofactors appear to contribute to HPV-related cervical cancer, such as Epstein-Barr virus (EBV), but previous studies have shown inconsistent outcomes. The exact role of EBV in cervical cancer remains unclear, and more studies are needed to determine its involvement. In this study, we describe the prevalence of EBV and HPV coinfection in HIV-positive women and explore how abnormal host immune status induced by viral coinfections modulates epithelial gene expression. We found a significant correlation between EBV-HPV coinfection and the incidence of high-grade cervical intraepithelial neoplasia (CIN2+). RNA sequencing indicated that CIN tissues coinfected with EBV and HPV led to significant changes in the gene expression of epithelial differentiation and development compared to normal tissues with HPV infection alone. In particular, several differentially expressed genes (DEGs) are closely associated with cancer, such as CACNG4, which was confirmed to be upregulated at both the mRNA and protein levels. Therefore, these findings provide some evidence that EBV may act as a cofactor or mediator in HPV-related cervical cancer. Specific genes or proteins, such as CACNG4, may serve as biomarkers that can risk stratify patients based on pathological changes in the cervix.
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Affiliation(s)
- Min Feng
- Institute of Medical Biology, Chinese Academy of Medicine Sciences and Peking Union Medical College, Kunming, China
| | - Rufei Duan
- Department of Gynecology, The Third Affiliated Hospital of Kunming Medical University/Yunnan Cancer Hospital/Yunnan Cancer Center, Kunming, China.,Department of Cancer Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yang Gao
- Institute of Medical Biology, Chinese Academy of Medicine Sciences and Peking Union Medical College, Kunming, China
| | - Han Zhang
- Institute of Medical Biology, Chinese Academy of Medicine Sciences and Peking Union Medical College, Kunming, China
| | - Youlin Qiao
- Department of Cancer Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qihan Li
- Institute of Medical Biology, Chinese Academy of Medicine Sciences and Peking Union Medical College, Kunming, China
| | - Fanghui Zhao
- Department of Cancer Epidemiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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14
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Adiga D, Radhakrishnan R, Chakrabarty S, Kumar P, Kabekkodu SP. The Role of Calcium Signaling in Regulation of Epithelial-Mesenchymal Transition. Cells Tissues Organs 2020; 211:134-156. [PMID: 33316804 DOI: 10.1159/000512277] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 10/13/2020] [Indexed: 11/19/2022] Open
Abstract
Despite substantial advances in the field of cancer therapeutics, metastasis is a significant challenge for a favorable clinical outcome. Epithelial to mesenchymal transition (EMT) is a process of acquiring increased motility, invasiveness, and therapeutic resistance by cancer cells for their sustained growth and survival. A plethora of intrinsic mechanisms and extrinsic microenvironmental factors drive the process of cancer metastasis. Calcium (Ca2+) signaling plays a critical role in dictating the adaptive metastatic cell behavior comprising of cell migration, invasion, angiogenesis, and intravasation. By modulating EMT, Ca2+ signaling can regulate the complexity and dynamics of events leading to metastasis. This review summarizes the role of Ca2+ signal remodeling in the regulation of EMT and metastasis in cancer.
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Affiliation(s)
- Divya Adiga
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Raghu Radhakrishnan
- Department of Oral Pathology, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Sanjiban Chakrabarty
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, India.,Center for DNA Repair and Genome Stability (CDRGS), Manipal Academy of Higher Education, Manipal, India
| | - Prashant Kumar
- Institute of Bioinformatics, International Technology Park, Bangalore, India.,Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Shama Prasada Kabekkodu
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, India, .,Center for DNA Repair and Genome Stability (CDRGS), Manipal Academy of Higher Education, Manipal, India,
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15
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Aktas HG, Ayan H. Oleuropein: A Potential Inhibitor for Prostate Cancer Cell Motility by Blocking Voltage-Gated Sodium Channels. Nutr Cancer 2020; 73:1758-1767. [PMID: 32842786 DOI: 10.1080/01635581.2020.1807575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this study, we investigated whether olive leaf and oleuropein have the potential to stop cell motility, which a metastatic cell behavior by blocking voltage-gated sodium channels (VGSCs). For this purpose, it was first prepared the aqueous extract of olive leaves (AOLE). Then it was assayed the effect on the motility of MAT-LyLu, a highly metastatic Dunning rat prostate adenocarcinoma cells of this extract. The phenolic content of AOLE was analyzed using LC-MS/MS instrument. It was observed that oleuropein was the most finding compound in AOLE. Therefore, whether oleuropein was responsible for the inhibitory effect of AOLE on the MAT-LyLu cell movement was tested. Nontoxic oleuropein concentrations and those that did not affect proliferation on MAT-LyLu cells were determined. Subsequently, it was examined the effects of oleuropein on the lateral and vertical movement of MAT-LyLu cells. To elucidate the mechanism of oleuropein affecting cell motility, whether it suppressed mRNA expression of SCN9A, which encodes the VGSC was analyzed. Accordingly, oleuropein suppressed the movement of MAT-LyLu cells by reducing SCN9A mRNA expression. In conclusion, we report the first time that oleuropein might be considered as a potential antimetastatic agent for prostate cancer due to its blocking effect on VGSC-mediated cell motility.
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Affiliation(s)
- Hatice Gumushan Aktas
- Faculty of Arts & Sciences, Biology Department, Harran University, Sanliurfa, Turkey
| | - Huda Ayan
- Faculty of Arts & Sciences, Biology Department, Harran University, Sanliurfa, Turkey
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16
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Barceló C, Sisó P, Maiques O, de la Rosa I, Martí RM, Macià A. T-Type Calcium Channels: A Potential Novel Target in Melanoma. Cancers (Basel) 2020; 12:E391. [PMID: 32046241 PMCID: PMC7072457 DOI: 10.3390/cancers12020391] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/06/2020] [Accepted: 02/06/2020] [Indexed: 01/08/2023] Open
Abstract
T-type calcium channels (TTCCs) are overexpressed in several cancers. In this review, we summarize the recent advances and new insights into TTCC biology, tumor progression, and prognosis biomarker and therapeutic potential in the melanoma field. We describe a novel correlation between the Cav3.1 isoform and the increased basal autophagy in BRAFV600E-mutant melanomas and after acquired resistance to BRAF inhibitors. Indeed, TTCC blockers reduce melanoma cell viability and migration/invasion in vitro and tumor growth in mice xenografts in both BRAF-inhibitor-sensitive and -resistant scenarios. These studies open a new, promising therapeutic approach for disseminated melanoma and improved treatment in BRAFi relapsed melanomas, but further validation and clinical trials are needed for it to become a real therapeutic option.
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Affiliation(s)
- Carla Barceló
- Oncologic Pathology Group, University of Lleida, IRBLleida, 25198 Lleida, Spain; (C.B.); (P.S.); (I.d.l.R.)
| | - Pol Sisó
- Oncologic Pathology Group, University of Lleida, IRBLleida, 25198 Lleida, Spain; (C.B.); (P.S.); (I.d.l.R.)
| | - Oscar Maiques
- Centre for Cancer and Inflammation, Barts Cancer Institute, Queen Mary University of London, London EC1M 6BQ, UK;
| | - Inés de la Rosa
- Oncologic Pathology Group, University of Lleida, IRBLleida, 25198 Lleida, Spain; (C.B.); (P.S.); (I.d.l.R.)
| | - Rosa M. Martí
- Department of Dermatology, Hospital Universitari Arnau de Vilanova, University of Lleida, IRBLleida, 25198 Lleida, Spain;
- Centre of Biomedical Research on Cancer (CIBERONC), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Anna Macià
- Oncologic Pathology Group, University of Lleida, IRBLleida, 25198 Lleida, Spain; (C.B.); (P.S.); (I.d.l.R.)
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17
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Kanwar N, Carmine-Simmen K, Nair R, Wang C, Moghadas-Jafari S, Blaser H, Tran-Thanh D, Wang D, Wang P, Wang J, Pasculescu A, Datti A, Mak T, Lewis JD, Done SJ. Amplification of a calcium channel subunit CACNG4 increases breast cancer metastasis. EBioMedicine 2020; 52:102646. [PMID: 32062352 PMCID: PMC7016384 DOI: 10.1016/j.ebiom.2020.102646] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/20/2019] [Accepted: 01/15/2020] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Previously, we found that amplification of chromosome 17q24.1-24.2 is associated with lymph node metastasis, tumour size, and lymphovascular invasion in invasive ductal carcinoma. A gene within this amplicon, CACNG4, an L-type voltage-gated calcium channel gamma subunit, is elevated in breast cancers with poor prognosis. Calcium homeostasis is achieved by maintaining low intracellular calcium levels. Altering calcium influx/efflux mechanisms allows tumour cells to maintain homeostasis despite high serum calcium levels often associated with advanced cancer (hypercalcemia) and aberrant calcium signaling. METHODS In vitro 2-D and 3-D assays, and intracellular calcium influx assays were utilized to measure tumourigenic activity in response to altered CANCG4 levels and calcium channel blockers. A chick-CAM model and mouse model for metastasis confirmed these results in vivo. FINDINGS CACNG4 alters cell motility in vitro, induces malignant transformation in 3-dimensional culture, and increases lung-specific metastasis in vivo. CACNG4 functions by closing the channel pore, inhibiting calcium influx, and altering calcium signaling events involving key survival and metastatic pathway genes (AKT2, HDAC3, RASA1 and PKCζ). INTERPRETATION CACNG4 may promote homeostasis, thus increasing the survival and metastatic ability of tumour cells in breast cancer. Our findings suggest an underlying pathway for tumour growth and dissemination regulated by CACNG4 that is significant with respect to developing treatments that target these channels in tumours with aberrant calcium signaling. FUNDING Canadian Breast Cancer Foundation, Ontario; Canadian Institutes of Health Research.
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Affiliation(s)
- Nisha Kanwar
- The Campbell Family for Breast Cancer Research, Princess Margaret Cancer Centre, Toronto, ON M5G 2M9, Canada; Department of Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A1, Canada
| | | | - Ranju Nair
- The Campbell Family for Breast Cancer Research, Princess Margaret Cancer Centre, Toronto, ON M5G 2M9, Canada
| | - Chunjie Wang
- Department of Pathology and Laboratory Medicine, Saskatoon City Hospital, Saskatoon, SK S7K 0M7, Canada
| | - Soode Moghadas-Jafari
- The Campbell Family for Breast Cancer Research, Princess Margaret Cancer Centre, Toronto, ON M5G 2M9, Canada
| | - Heiko Blaser
- The Campbell Family for Breast Cancer Research, Princess Margaret Cancer Centre, Toronto, ON M5G 2M9, Canada
| | - Danh Tran-Thanh
- Department of Pathology, Centre Hospitalier de l'Université de Montréal, Montréal, QC H2W 1T8, Canada
| | - Dongyu Wang
- Department of Medical Biophysics, Faculty of Medicine, University of Toronto, ON M5S 1A1, Canada
| | - Peiqi Wang
- The Campbell Family for Breast Cancer Research, Princess Margaret Cancer Centre, Toronto, ON M5G 2M9, Canada
| | - Jenny Wang
- Samuel Lunenfeld Research Institute, Mt. Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Adrian Pasculescu
- Samuel Lunenfeld Research Institute, Mt. Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Alessandro Datti
- Samuel Lunenfeld Research Institute, Mt. Sinai Hospital, Toronto, ON M5G 1X5, Canada; Department of Agricultural, Food, and Environmental Sciences, University of Perugia, Perugia, Italy
| | - Tak Mak
- The Campbell Family for Breast Cancer Research, Princess Margaret Cancer Centre, Toronto, ON M5G 2M9, Canada; Department of Medical Biophysics, Faculty of Medicine, University of Toronto, ON M5S 1A1, Canada
| | - John D Lewis
- Department of Oncology, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - Susan J Done
- The Campbell Family for Breast Cancer Research, Princess Margaret Cancer Centre, Toronto, ON M5G 2M9, Canada; Department of Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A1, Canada; Department of Medical Biophysics, Faculty of Medicine, University of Toronto, ON M5S 1A1, Canada; Laboratory Medicine Program, Department of Pathology, University Health Network, Toronto General Hospital, 200 Elizabeth Street, 11th floor, Toronto, ON M5G 2C4, Canada.
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18
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Yu S, Huang S, Ding Y, Wang W, Wang A, Lu Y. Transient receptor potential ion-channel subfamily V member 4: a potential target for cancer treatment. Cell Death Dis 2019; 10:497. [PMID: 31235786 PMCID: PMC6591233 DOI: 10.1038/s41419-019-1708-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 05/13/2019] [Accepted: 05/28/2019] [Indexed: 12/29/2022]
Abstract
The transient receptor potential ion-channel superfamily consists of nonselective cation channels located mostly on the plasma membranes of numerous animal cell types, which are closely related to sensory information transmission (e.g., vision, pain, and temperature perception), as well as regulation of intracellular Ca2+ balance and physiological activities of growth and development. Transient receptor potential ion channel subfamily V (TRPV) is one of the largest and most diverse subfamilies, including TRPV1-TRPV6 involved in the regulation of a variety of cellular functions. TRPV4 can be activated by various physical and chemical stimuli, such as heat, mechanical force, and phorbol ester derivatives participating in the maintenance of normal cellular functions. In recent years, the roles of TRPV4 in cell proliferation, differentiation, apoptosis, and migration have been extensively studied. Its abnormal expression has also been closely related to the onset and progression of multiple tumors, so TRPV4 may be a target for cancer diagnosis and treatment. In this review, we focused on the latest studies concerning the role of TRPV4 in tumorigenesis and the therapeutic potential. As evidenced by the effects on cancerogenesis, TRPV4 is a potential target for anticancer therapy.
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Affiliation(s)
- Suyun Yu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Shuai Huang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Yushi Ding
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Wei Wang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Aiyun Wang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, P. R. China
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, Nanjing, P. R. China
| | - Yin Lu
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, P. R. China.
- Jiangsu Collaborative Innovation Center of Traditional Chinese Medicine Prevention and Treatment of Tumor, Nanjing University of Chinese Medicine, Nanjing, P. R. China.
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19
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TRPC-mediated Ca 2+ signaling and control of cellular functions. Semin Cell Dev Biol 2019; 94:28-39. [PMID: 30738858 DOI: 10.1016/j.semcdb.2019.02.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 01/30/2019] [Accepted: 02/06/2019] [Indexed: 12/15/2022]
Abstract
Canonical members of the TRP superfamily of ion channels have long been recognized as key elements of Ca2+ handling in a plethora of cell types. The emerging role of TRPC channels in human physiopathology has generated considerable interest in their pharmacological targeting, which requires detailed understanding of their molecular function. Although consent has been reached that receptor-phospholipase C (PLC) pathways and generation of lipid mediators constitute the prominent upstream signaling process that governs channel activity, multimodal sensing features of TRPC complexes have been demonstrated repeatedly. Downstream signaling by TRPC channels is similarly complex and involves the generation of local and global cellular Ca2+ rises, which are well-defined in space and time to govern specific cellular functions. These TRPC-mediated Ca2+ signals rely in part on Ca2+ permeation through the channels, but are essentially complemented by secondary mechanisms such as Ca2+ mobilization from storage sites and Na+/Ca2+ exchange, which involve coordinated interaction with signaling partners. Consequently, the control of cell functions by TRPC molecules is critically determined by dynamic assembly and subcellular targeting of the TRPC complexes. The very recent availability of high-resolution structure information on TRPC channel complexes has paved the way towards a comprehensive understanding of signal transduction by TRPC channels. Here, we summarize current concepts of cation permeation in TRPC complexes, TRPC-mediated shaping of cellular Ca2+ signals and the associated control of specific cell functions.
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20
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T-type Calcium Channels in Cancer. Cancers (Basel) 2019; 11:cancers11020134. [PMID: 30678110 PMCID: PMC6407089 DOI: 10.3390/cancers11020134] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/10/2019] [Accepted: 01/17/2019] [Indexed: 12/21/2022] Open
Abstract
Although voltage-activated Ca2+ channels are a common feature in excitable cells, their expression in cancer tissue is less understood. T-type Ca2+ channels are particularly overexpressed in various cancers. Because of their activation profile at membrane potentials close to rest and the generation of a window current, T-type Ca2+ channels may regulate a variety of Ca2+-dependent cellular processes, including cell proliferation, survival, and differentiation. The expression of T-type Ca2+ channels is of special interest as a target for therapeutic interventions.
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21
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Babona-Pilipos R, Liu N, Pritchard-Oh A, Mok A, Badawi D, Popovic MR, Morshead CM. Calcium influx differentially regulates migration velocity and directedness in response to electric field application. Exp Cell Res 2018; 368:202-214. [PMID: 29729231 DOI: 10.1016/j.yexcr.2018.04.031] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/25/2018] [Accepted: 04/28/2018] [Indexed: 11/15/2022]
Abstract
Neural precursor cells (NPCs) respond to externally applied direct current electrical fields (DCEFs) by undergoing rapid and directed migration toward the cathode in a process known as galvanotaxis. It is unknown if the underlying mechanisms of galvanotactic migration is common to non-electrosensitive cells and if so, how NPCs and other galvanotactic cells sense and transduce electrical fields into cellular motility. In this study, we show that distinct aspects of NPC galvanotactic migration: motility (quantified through |velocity|) and directedness, are differentially regulated by calcium. We use low-Ca2+ culture conditions; an intracellular Ca2+ chelator; and voltage gated calcium channel (VGCC) inhibitors to specific channels expressed on NPCs, to demonstrate the role of Ca2+ influx in DCEF-induced NPC migration. Consistent with existing literature, we show Ca2+ is involved in F-actin polymerization that lengthens NPC membrane protrusions necessary for cellular motility. However, inhibiting Ca2+ results in reduced velocity but has no effect on DCEF-induced directedness. This dissociation between velocity and directedness reveal that these migration parameters can be independently regulated, thus suggesting a parallel process of sensing DCEFs by NPCs.
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Affiliation(s)
- R Babona-Pilipos
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Canada; Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Canada; Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - N Liu
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Canada; Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada
| | - A Pritchard-Oh
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Canada
| | - A Mok
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Canada
| | - D Badawi
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Canada
| | - M R Popovic
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Canada
| | - C M Morshead
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Canada; Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Canada; Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada; Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
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22
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Cav3.1 overexpression is associated with negative characteristics and prognosis in non-small cell lung cancer. Oncotarget 2018; 9:8573-8583. [PMID: 29492218 PMCID: PMC5823575 DOI: 10.18632/oncotarget.24194] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 12/05/2017] [Indexed: 11/25/2022] Open
Abstract
Introduction Voltage-gated calcium channels (VGCC) have been found to be differentially expressed in several different tumor types, but their role in tumor growth, malignant invasion, metastases and impact on clinical outcomes has not been clarified. Materials and Methods From a cohort database of 193 patients with early-stage NSCLC, 163 formalin-fixed paraffin-embedded specimens were available for analysis to construct tissue microarrays. Cav3.1 protein expression was detected using fluorescence immunohistochemistry, and quantified using automated image acquisition and analysis. Results Among the cohort of 193 NSCLC patients, adenocarcinoma (53.9%) and squamous cell carcinoma (SCC) (30.1%) were the most common histologies. There was no difference between SCC and non-SCC subtypes in overall survival (OS) or relapse-free survival (RFS); 74.2 vs 90.1 months (p = 0.543) and 48.8 vs 52.6 months (p = 0.766), respectively. T-type VGCC 3.1 (Cav3.1) overexpression was assessed by tissue microarray immunohistochemistry analysis from 163 available patient samples. Eighteen (11.0%) NSCLC primaries were found to have Cav3.1 overexpression levels, and were significantly associated with SCC histology (p < 0.001), larger tumor size (p < 0.001) and later stage disease at diagnosis (p = 0.019). Median OS was 48.6 vs 106.7 months for Cav3.1 overexpressing and non-overexpressing patients, respectively (p = 0.032). Regression analysis revealed a significantly negative effect for Cav3.1 overexpression on RFS (Hazard ratio [HR] = 2.02, p = 0.048). Conclusions Cav3.1 overexpression is a potential biomarker for poorer patient outcomes. These results bring supportive evidence for calcium channels inducing an aggressive phenotype in NSCLC and potentially may serve as a therapeutic target in overexpressing tumors.
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Liu X, Wang T, Wang Y, Chen Z, Hua D, Yao X, Ma X, Zhang P. Orai1 is critical for Notch-driven aggressiveness under hypoxic conditions in triple-negative breast cancers. Biochim Biophys Acta Mol Basis Dis 2018; 1864:975-986. [PMID: 29307746 DOI: 10.1016/j.bbadis.2018.01.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 12/20/2017] [Accepted: 01/02/2018] [Indexed: 12/29/2022]
Abstract
It is believed that hypoxia stimulates triple-negative breast cancers (TNBCs) metastasis, which is associated with a poor prognosis. However, the underlying mechanism remains unclear. Here, we demonstrated that hypoxia up-regulates both the levels of Orai1 and Notch1, and the increase in Orai1 is mediated by Notch1 signaling in TNBCs. Functionally, Orai1 caused a sustained elevation of intracellular Ca2+ via Store-operated Ca2+ entry (SOCE), then activated the calcineurin-nuclear factor of activated T-cell 4 (NFAT4, also named NFATc3) in hypoxic TNBCs. Furthermore, pharmacologic inhibition or gene-silencing studies showed that the aggressiveness mediated by Orai1 during hypoxia is dependent on the Notch1/Orai1/SOCE/NFAT4 signaling. Moreover, Orai1 signaling also mediated hypoxia-induced angiogenesis in TNBCs. Thus, our results revealed a novel role of Orai1 as an inducer of aggression and angiogenesis under hypoxic conditions, and this suggests a novel mechanism of hypoxia-induced invasion. It may be worthwhile to further explore the potential of using Orai1 signaling as new target for anti-tumor therapy in TNBCs.
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Affiliation(s)
- Xiaoyu Liu
- School of Medicine, Jiangnan University, Wuxi, China; School of Biomedical Sciences, the Chinese University of Hong Kong, Hong Kong, China
| | - Teng Wang
- Department of Oncology, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Yan Wang
- Key Laboratory of Cardiovascular Medicine and Clinical Pharmacology of Shanxi Province, Taiyuan, China
| | - Zhen Chen
- School of Medicine, Jiangnan University, Wuxi, China
| | - Dong Hua
- Department of Oncology, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Xiaoqiang Yao
- School of Biomedical Sciences, the Chinese University of Hong Kong, Hong Kong, China
| | - Xin Ma
- School of Medicine, Jiangnan University, Wuxi, China.
| | - Peng Zhang
- School of Medicine, Jiangnan University, Wuxi, China.
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24
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Let's talk about Secs: Sec61, Sec62 and Sec63 in signal transduction, oncology and personalized medicine. Signal Transduct Target Ther 2017; 2:17002. [PMID: 29263911 PMCID: PMC5661625 DOI: 10.1038/sigtrans.2017.2] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 01/11/2017] [Accepted: 01/17/2017] [Indexed: 12/11/2022] Open
Abstract
The heterotrimeric Sec61 complex and the dimeric Sec62/Sec63 complex are located in the membrane of the human endoplasmic reticulum (ER) and play a central role in translocation of nascent and newly synthesized precursor polypeptides into the ER. This process involves targeting of the precursors to the membrane and opening of the polypeptide conducting Sec61 channel for translocation. Apart from this central role in the intracellular transport of polypeptides, several studies of the last decade uncovered additional functions of Sec proteins in intracellular signaling: Sec62 can induce ER-phagy in the process of recovery of cells from ER stress and the Sec61 channel can also act as a passive ER calcium leak channel. Furthermore, mutations, amplifications and an overexpression of the SEC genes were linked to various diseases including kidney and liver diseases, diabetes and human cancer. Studies of the last decade could not only elucidate the functional role of Sec proteins in the pathogenesis of these diseases, but also demonstrate a relevance of Sec62 as a prognostic and predictive biomarker in head and neck cancer, prostate and lung cancer including a basis for new therapeutic strategies. In this article, we review the current understanding of protein transport across the ER membrane as central function of Sec proteins and further focus on recent studies that gave first insights into the functional role and therapeutic relevance of Sec61, Sec62 and Sec63 in human diseases.
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CACNA1B (Ca v2.2) Overexpression and Its Association with Clinicopathologic Characteristics and Unfavorable Prognosis in Non-Small Cell Lung Cancer. DISEASE MARKERS 2017; 2017:6136401. [PMID: 28127114 PMCID: PMC5239836 DOI: 10.1155/2017/6136401] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 09/05/2016] [Accepted: 09/08/2016] [Indexed: 12/15/2022]
Abstract
CACNA1B (Cav2.2) encodes an N-type voltage-gated calcium channel (VGCC) ubiquitously expressed in brain and peripheral nervous system that is important for regulating neuropathic pain. Because intracellular calcium concentration is a key player in cell proliferation and apoptosis, VGCCs are implicated in tumorigenesis. Recent studies have identified CACNA1B (Cav2.2) being overexpressed in prostate and breast cancer tissues when compared to adjacent normal tissues; however, its role in non-small cell lung cancer (NSCLC) has not been investigated. In this study, we determined the mRNA and protein expression of CACNA1B (Cav2.2) in NSCLC tumorous and adjacent nontumorous tissues by quantitative reverse transcription PCR (qRT-PCR) and tissue microarray immunohistochemistry analysis (TMA-IHC), respectively. CACNA1B (Cav2.2) protein expressions in tumorous tissues were correlated with NSCLC patients' clinical characteristics and overall survival. CACNA1B (Cav2.2) mRNA and protein expression levels were higher in NSCLC tumorous tissues than in nontumorous tissues. High CACNA1B (Cav2.2) protein expression was associated with higher TNM stages, and CACNA1B (Cav2.2) protein expression is an independent prognostic marker in NSCLC. Based on our results, we conclude that CACNA1B (Cav2.2) plays a role in NSCLC development and progression. Elucidating the underlying mechanism may help design novel treatment by specifically targeting the calcium regulation pathway for NSCLC, a devastating disease with increasing incidence and mortality in China.
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Jardin I, Rosado JA. STIM and calcium channel complexes in cancer. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1863:1418-26. [DOI: 10.1016/j.bbamcr.2015.10.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 09/25/2015] [Accepted: 10/07/2015] [Indexed: 12/12/2022]
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Guo R, Pan F, Tian Y, Li H, Li S, Cao C. Down-Regulation of ClC-3 Expression Reduces Epidermal Stem Cell Migration by Inhibiting Volume-Activated Chloride Currents. J Membr Biol 2016; 249:281-92. [DOI: 10.1007/s00232-015-9867-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 12/30/2015] [Indexed: 01/10/2023]
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Kale VP, Amin SG, Pandey MK. Targeting ion channels for cancer therapy by repurposing the approved drugs. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2015; 1848:2747-55. [PMID: 25843679 DOI: 10.1016/j.bbamem.2015.03.034] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 03/18/2015] [Accepted: 03/27/2015] [Indexed: 12/21/2022]
Abstract
Ion channels have been shown to be involved in oncogenesis and efforts are being poured in to target the ion channels. There are many clinically approved drugs with ion channels as "off" targets. The question is, can these drugs be repurposed to inhibit ion channels for cancer treatment? Repurposing of drugs will not only save investors' money but also result in safer drugs for cancer patients. Advanced bioinformatics techniques and availability of a plethora of open access data on FDA approved drugs for various indications and omics data of large number of cancer types give a ray of hope to look for possibility of repurposing those drugs for cancer treatment. This article is part of a Special Issue entitled: Membrane channels and transporters in cancers.
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Affiliation(s)
- Vijay Pralhad Kale
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Shantu G Amin
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Manoj K Pandey
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA.
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Calcium channel expression and applicability as targeted therapies in melanoma. BIOMED RESEARCH INTERNATIONAL 2015; 2015:587135. [PMID: 25710007 PMCID: PMC4331404 DOI: 10.1155/2015/587135] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/15/2014] [Accepted: 12/15/2014] [Indexed: 12/12/2022]
Abstract
The remodeling of Ca(2+) signaling is a common finding in cancer pathophysiology serving the purpose of facilitating proliferation, migration, or survival of cancer cells subjected to stressful conditions. One particular facet of these adaptive changes is the alteration of Ca(2+) fluxes through the plasma membrane, as described in several studies. In this review, we summarize the current knowledge about the expression of different Ca(2+) channels in the plasma membrane of melanoma cells and its impact on oncogenic Ca(2+) signaling. In the last few years, new molecular components of Ca(2+) influx pathways have been identified in melanoma cells. In addition, new links between Ca(2+) homeostasis and specific cell processes important in melanoma tumor progression have been unveiled. Thus, not only do Ca(2+) channels appear to have a potential as prognostic markers, but their pharmacological blockade or gene silencing is hinted as interesting therapeutic approaches.
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KCa and Ca(2+) channels: the complex thought. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1843:2322-33. [PMID: 24613282 DOI: 10.1016/j.bbamcr.2014.02.019] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 02/13/2014] [Accepted: 02/26/2014] [Indexed: 01/30/2023]
Abstract
Potassium channels belong to the largest and the most diverse super-families of ion channels. Among them, Ca(2+)-activated K(+) channels (KCa) comprise many members. Based on their single channel conductance they are divided into three subfamilies: big conductance (BKCa), intermediate conductance (IKCa) and small conductance (SKCa; SK1, SK2 and SK3). Ca(2+) channels are divided into two main families, voltage gated/voltage dependent Ca(2+) channels and non-voltage gated/voltage independent Ca(2+) channels. Based on their electrophysiological and pharmacological properties and on the tissue where there are expressed, voltage gated Ca(2+) channels (Cav) are divided into 5 families: T-type, L-type, N-type, P/Q-type and R-type Ca(2+). Non-voltage gated Ca(2+) channels comprise the TRP (TRPC, TRPV, TRPM, TRPA, TRPP, TRPML and TRPN) and Orai (Orai1 to Orai3) families and their partners STIM (STIM1 to STIM2). A depolarization is needed to activate voltage-gated Ca(2+) channels while non-voltage gated Ca(2+) channels are activated by Ca(2+) depletion of the endoplasmic reticulum stores (SOCs) or by receptors (ROCs). These two Ca(2+) channel families also control constitutive Ca(2+) entries. For reducing the energy consumption and for the fine regulation of Ca(2+), KCa and Ca(2+) channels appear associated as complexes in excitable and non-excitable cells. Interestingly, there is now evidence that KCa-Ca(2+) channel complexes are also found in cancer cells and contribute to cancer-associated functions such as cell proliferation, cell migration and the capacity to develop metastases. This article is part of a Special Issue entitled: Calcium signaling in health and disease. Guest Editors: Geert Bultynck, Jacques Haiech, Claus W. Heizmann, Joachim Krebs, and Marc Moreau.
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Prevarskaya N, Ouadid-Ahidouch H, Skryma R, Shuba Y. Remodelling of Ca2+ transport in cancer: how it contributes to cancer hallmarks? Philos Trans R Soc Lond B Biol Sci 2014; 369:20130097. [PMID: 24493745 DOI: 10.1098/rstb.2013.0097] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Cancer involves defects in the mechanisms underlying cell proliferation, death and migration. Calcium ions are central to these phenomena, serving as major signalling agents with spatial localization, magnitude and temporal characteristics of calcium signals ultimately determining cell's fate. Cellular Ca(2+) signalling is determined by the concerted action of a molecular Ca(2+)-handling toolkit which includes: active energy-dependent Ca(2+) transporters, Ca(2+)-permeable ion channels, Ca(2+)-binding and storage proteins, Ca(2+)-dependent effectors. In cancer, because of mutations, aberrant expression, regulation and/or subcellular targeting of Ca(2+)-handling/transport protein(s) normal relationships among extracellular, cytosolic, endoplasmic reticulum and mitochondrial Ca(2+) concentrations or spatio-temporal patterns of Ca(2+) signalling become distorted. This causes deregulation of Ca(2+)-dependent effectors that control signalling pathways determining cell's behaviour in a way to promote pathophysiological cancer hallmarks such as enhanced proliferation, survival and invasion. Despite the progress in our understanding of Ca(2+) homeostasis remodelling in cancer cells as well as in identification of the key Ca(2+)-transport molecules promoting certain malignant phenotypes, there is still a lot of work to be done to transform fundamental findings and concepts into new Ca(2+) transport-targeting tools for cancer diagnosis and treatment.
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Affiliation(s)
- Natalia Prevarskaya
- Inserm, U1003, Laboratoire de Physiologie Cellulaire, Equipe labellisée par la Ligue contre le cancer, Villeneuve d'Ascq, F-59650 France; Laboratory of Excellence, Ion Channels Science and Therapeutics; Universite de Lille 1, , Villeneuve d'Ascq, F-59650 France
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Zhang Y, Wang H, Qian Z, Feng B, Zhao X, Jiang X, Tao J. Low-voltage-activated T-type Ca2+ channel inhibitors as new tools in the treatment of glioblastoma: the role of endostatin. Pflugers Arch 2014; 466:811-8. [PMID: 24407946 DOI: 10.1007/s00424-013-1427-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 12/16/2013] [Accepted: 12/18/2013] [Indexed: 11/25/2022]
Abstract
Ca(2+) plays a key role in intracellular signaling and controls various cellular processes such as proliferation, differentiation, cell growth, death, and apoptosis. Aberrant changes in intracellular Ca(2+) levels can promote undesired cell proliferation and migration and are therefore associated with certain tumor types. Many research groups have suggested a potential role for voltage-gated Ca(2+) channels in the regulation of tumor growth and progression, particularly T-type channels due to their unique biophysical properties. T-type channels are expressed in normal tissues throughout the body and in different types of tumors such as breast carcinoma, retinoblastoma, neuroblastoma, and glioma. It has been demonstrated that increased functional expression of the α1 subunit of T-type channels plays a role in the abnormal proliferation of glioblastoma cells. As such, siRNA-mediated knockdown of the expression of the α1 subunit of T-type channels decreases the proliferation of these cells. Moreover, pharmacological blockade of T-type channels significantly decreases tumor growth. In this review, we focus on the use of T-type channel blockers for the potential treatment of cancers, particularly highly proliferative tumors such as glioblastoma. We conclude that T-type channel blockers such as endostatin can serve as a potential therapeutic tool for tumors whose proliferation depends on increased T-type channel expression.
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Affiliation(s)
- Yuan Zhang
- The Special Procurement Ward, Department of Geriatrics & Neurology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China
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Linxweiler M, Schorr S, Schäuble N, Jung M, Linxweiler J, Langer F, Schäfers HJ, Cavalié A, Zimmermann R, Greiner M. Targeting cell migration and the endoplasmic reticulum stress response with calmodulin antagonists: a clinically tested small molecule phenocopy of SEC62 gene silencing in human tumor cells. BMC Cancer 2013; 13:574. [PMID: 24304694 PMCID: PMC3878975 DOI: 10.1186/1471-2407-13-574] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Accepted: 11/27/2013] [Indexed: 11/16/2022] Open
Abstract
Background Tumor cells benefit from their ability to avoid apoptosis and invade other tissues. The endoplasmic reticulum (ER) membrane protein Sec62 is a key player in these processes. Sec62 is essential for cell migration and protects tumor cells against thapsigargin-induced ER stress, which are both linked to cytosolic Ca2+. SEC62 silencing leads to elevated cytosolic Ca2+ and increased ER Ca2+ leakage after thapsigargin treatment. Sec62 protein levels are significantly increased in different tumors, including prostate, lung and thyroid cancer. Methods In lung cancer, the influence of Sec62 protein levels on patient survival was analyzed using the Kaplan-Meier method and log-rank test. To elucidate the underlying pathophysiological functions of Sec62, Ca2+ imaging techniques, real-time cell analysis and cell migration assays were performed. The effects of treatment with the calmodulin antagonists, trifluoperazine (TFP) and ophiobolin A, on cellular Ca2+ homeostasis, cell growth and cell migration were compared with the effects of siRNA-mediated Sec62 depletion or the expression of a mutated SEC62 variant in vitro. Using Biacore analysis we examined the Ca2+-sensitive interaction of Sec62 with the Sec61 complex. Results Sec62 overproduction significantly correlated with reduced patient survival. Therefore, Sec62 is not only a predictive marker for this type of tumor, but also an interesting therapeutic target. The present study suggests a regulatory function for Sec62 in the major Ca2+ leakage channel in the ER, Sec61, by a direct and Ca2+-sensitive interaction. A Ca2+-binding motif in Sec62 is essential for its molecular function. Treatment of cells with calmodulin antagonists mimicked Sec62 depletion by inhibiting cell migration and rendering the cells sensitive to thapsigargin treatment. Conclusions Targeting tumors that overproduce Sec62 with calmodulin antagonists in combination with targeted thapsigargin analogues may offer novel personalized therapeutic options.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Markus Greiner
- Department of Medical Biochemistry and Molecular Biology, Saarland University, Homburg, Saarland, Germany.
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Stock C, Ludwig FT, Hanley PJ, Schwab A. Roles of ion transport in control of cell motility. Compr Physiol 2013; 3:59-119. [PMID: 23720281 DOI: 10.1002/cphy.c110056] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cell motility is an essential feature of life. It is essential for reproduction, propagation, embryonic development, and healing processes such as wound closure and a successful immune defense. If out of control, cell motility can become life-threatening as, for example, in metastasis or autoimmune diseases. Regardless of whether ciliary/flagellar or amoeboid movement, controlled motility always requires a concerted action of ion channels and transporters, cytoskeletal elements, and signaling cascades. Ion transport across the plasma membrane contributes to cell motility by affecting the membrane potential and voltage-sensitive ion channels, by inducing local volume changes with the help of aquaporins and by modulating cytosolic Ca(2+) and H(+) concentrations. Voltage-sensitive ion channels serve as voltage detectors in electric fields thus enabling galvanotaxis; local swelling facilitates the outgrowth of protrusions at the leading edge while local shrinkage accompanies the retraction of the cell rear; the cytosolic Ca(2+) concentration exerts its main effect on cytoskeletal dynamics via motor proteins such as myosin or dynein; and both, the intracellular and the extracellular H(+) concentration modulate cell migration and adhesion by tuning the activity of enzymes and signaling molecules in the cytosol as well as the activation state of adhesion molecules at the cell surface. In addition to the actual process of ion transport, both, channels and transporters contribute to cell migration by being part of focal adhesion complexes and/or physically interacting with components of the cytoskeleton. The present article provides an overview of how the numerous ion-transport mechanisms contribute to the various modes of cell motility.
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Affiliation(s)
- Christian Stock
- Institute of Physiology II, University of Münster, Münster, Germany.
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Evensen NA, Kuscu C, Nguyen HL, Zarrabi K, Dufour A, Kadam P, Hu YJ, Pulkoski-Gross A, Bahou WF, Zucker S, Cao J. Unraveling the role of KIAA1199, a novel endoplasmic reticulum protein, in cancer cell migration. J Natl Cancer Inst 2013; 105:1402-16. [PMID: 23990668 DOI: 10.1093/jnci/djt224] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Cell migration is a critical determinant of cancer metastasis, and a better understanding of the genes involved will lead to the identification of novel targets aimed at preventing cancer dissemination. KIAA1199 has been shown to be upregulated in human cancers, yet its role in cancer progression was hitherto unknown. METHODS Clinical relevance was assessed by examining KIAA1199 expression in human cancer specimens. In vitro and in vivo studies were employed to determine the function of KIAA1199 in cancer progression. Cellular localization of KIAA1199 was microscopically determined. SNAP-tag pull-down assays were used to identify binding partner(s) of KIAA1199. Calcium levels were evaluated using spectrofluorometric and fluorescence resonance energy transfer analyses. Signaling pathways were dissected by Western blotting. Student t test was used to assess differences. All statistical tests were two-sided. RESULTS KIAA1199 was upregulated in invasive breast cancer specimens and inversely associated with patient survival rate. Silencing of KIAA1199 in MDA-MB-435 cancer cells resulted in a mesenchymal-to-epithelial transition that reduced cell migratory ability in vitro (75% reduction; P < .001) and decreased metastasis in vivo (80% reduction; P < .001). Gain-of-function assays further demonstrated the role of KIAA1199 in cell migration. KIAA1199-enhanced cell migration required endoplasmic reticulum (ER) localization, where it forms a stable complex with the chaperone binding immunoglobulin protein (BiP). A novel ER-retention motif within KIAA1199 that is required for its ER localization, BiP interaction, and enhanced cell migration was identified. Mechanistically, KIAA1199 was found to mediate ER calcium leakage, and the resultant increase in cytosolic calcium ultimately led to protein kinase C alpha activation and cell migration. CONCLUSIONS KIAA1199 serves as a novel cell migration-promoting gene and plays a critical role in maintaining cancer mesenchymal status.
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Affiliation(s)
- Nikki A Evensen
- Affiliations of authors: Department of Medicine/Cancer Prevention (NAE, CK, H-LN, KZ, AD, AP-G, JC), Department of Pathology (YH, JC), Department of Medicine/Hematology & Oncology (WFB, SZ), Stony Brook University, Stony Brook, NY; Department of Research, Veterans Affair Medical Center, Northport, NY (H-LN, PK, SZ); Centre for Blood Research and Departments of Biochemistry and Molecular Biology and Oral Biological and Medical Sciences, University of British Columbia, Vancouver, BC, Canada (AD)
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Zamanian M, Veerakumarasivam A, Abdullah S, Rosli R. Calreticulin and cancer. Pathol Oncol Res 2013; 19:149-54. [PMID: 23392843 DOI: 10.1007/s12253-012-9600-2] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Accepted: 12/21/2012] [Indexed: 01/05/2023]
Abstract
Calreticulin (CRT) as a multi-functional endoplasmic reticulum protein is involved in a spectrum of cellular processes which ranges from calcium homeostasis and chaperoning to cell adhesion and finally malignant formation and progression. Previous studies have shown a contributing role for CRT in a range of different cancers. This present review will focus on the possible roles of CRT in the progression of malignant proliferation and the mechanisms involved in its contribution to cancer invasion.
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Affiliation(s)
- Mohammadreza Zamanian
- Genetic Medicine Research Center, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor Darul Ehsan, Malaysia
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Prevarskaya N, Skryma R, Shuba Y. Targeting Ca2+transport in cancer: close reality or long perspective? Expert Opin Ther Targets 2013; 17:225-41. [DOI: 10.1517/14728222.2013.741594] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Santoni G, Santoni M, Nabissi M. Functional role of T-type calcium channels in tumour growth and progression: prospective in cancer therapy. Br J Pharmacol 2012; 166:1244-6. [PMID: 22352795 DOI: 10.1111/j.1476-5381.2012.01908.x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
T-type Ca²⁺ channels represent a specific channel family overexpressed in different types of tumours. Their involvement in controlling the proliferation, angiogenesis and invasion of tumour cells, has been partially clarified. The article by Zhang et al. in this issue of BJP provides the first evidence of anti-tumoural effects of endostatin (ES) in U87 glioma cells. He demonstrated that ES or mibefradil (a L/T-type calcium channel blocker), reduces the proliferation and migration of U87 glioma cells in a T-type Ca²⁺ channel-dependent manner. However, the difference in the blocking effect of mibefradil on T-type calcium channel expression as compared with its ability to inhibit proliferation and migration, supports the idea of a broader T/L-type-independent effect of the mibefradil blocker. Overall, these findings provide new insights for the future development of a novel class of anti-T-type calcium channel blockers in the therapy of glioblastoma.
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Affiliation(s)
- Giorgio Santoni
- School of Pharmacy, Section of Experimental Medicine, University of Camerino, Camerino (MC), Italy.
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Zhang Y, Zhang J, Jiang D, Zhang D, Qian Z, Liu C, Tao J. Inhibition of T-type Ca²⁺ channels by endostatin attenuates human glioblastoma cell proliferation and migration. Br J Pharmacol 2012; 166:1247-60. [PMID: 22233416 DOI: 10.1111/j.1476-5381.2012.01852.x] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND AND PURPOSE Endostatin (ES) is a c-terminal proteolytic fragment of collagen XVIII with promising antitumour properties in several tumour models, including human glioblastoma. We hypothesized that this peptide could interact with plasma membrane ion channels and modulate their functions. EXPERIMENTAL APPROACH Using cell proliferation and migration assays, patch clamp and Western blot analysis, we studied the effects of ES on the proliferation and migration of human glioblastoma U87 cells, mediated by T-type Ca²⁺ channels. KEY RESULTS Extracellular application of ES reversibly inhibited T-type Ca²⁺ channel currents (T-currents) in U87 cells, whereas L-type Ca²⁺ currents were not affected. This inhibitory effect was associated with a hyperpolarizing shift in the voltage-dependence of inactivation but was independent of G-protein and protein tyrosine kinase-mediated pathways. All three α₁ subunits of T-type Ca²⁺ channels (Ca(V) 3), α(1G) (Ca(V) 3.1), α(1H) (Ca(V) 3.2) and α(1I) (Ca(V) 3.3), were endogenously expressed in U87 cells. Using transfected HEK293 or CHO cells, we showed that only Ca(V) 3.1 and Ca(V) 3.2, but not Ca(V) 3.3 or Ca(V) 1.2 (L-type), channel currents were significantly inhibited. More interestingly, ES inhibited the proliferation and migration of U87 cells in a dose-dependent manner. Pretreatment of the cells with the specific T-type Ca²⁺ channel blocker mibefradil occluded these inhibitory effects of ES. CONCLUSION AND IMPLICATIONS This study provides the first evidence that the antitumour effects of ES on glioblastoma cells is through direct inhibition of T-type Ca²⁺ channels and gives new insights into the future development of a new class of antiglioblastoma agents that target the proliferation and migration of these cells.
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Affiliation(s)
- Yuan Zhang
- The Special Procurement Ward & Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou, China
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Lodola F, Laforenza U, Bonetti E, Lim D, Dragoni S, Bottino C, Ong HL, Guerra G, Ganini C, Massa M, Manzoni M, Ambudkar IS, Genazzani AA, Rosti V, Pedrazzoli P, Tanzi F, Moccia F, Porta C. Store-operated Ca2+ entry is remodelled and controls in vitro angiogenesis in endothelial progenitor cells isolated from tumoral patients. PLoS One 2012; 7:e42541. [PMID: 23049731 PMCID: PMC3458053 DOI: 10.1371/journal.pone.0042541] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Accepted: 07/09/2012] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Endothelial progenitor cells (EPCs) may be recruited from bone marrow to sustain tumor vascularisation and promote the metastatic switch. Understanding the molecular mechanisms driving EPC proliferation and tubulogenesis could outline novel targets for alternative anti-angiogenic treatments. Store-operated Ca(2+) entry (SOCE), which is activated by a depletion of the intracellular Ca(2+) pool, regulates the growth of human EPCs, where is mediated by the interaction between the endoplasmic reticulum Ca(2+)-sensor, Stim1, and the plasmalemmal Ca(2+) channel, Orai1. As oncogenesis may be associated to the capability of tumor cells to grow independently on Ca(2+) influx, it is important to assess whether SOCE regulates EPC-dependent angiogenesis also in tumor patients. METHODOLOGY/PRINCIPAL FINDINGS The present study employed Ca(2+) imaging, recombinant sub-membranal and mitochondrial aequorin, real-time polymerase chain reaction, gene silencing techniques and western blot analysis to investigate the expression and the role of SOCE in EPCs isolated from peripheral blood of patients affected by renal cellular carcinoma (RCC; RCC-EPCs) as compared to control EPCs (N-EPCs). SOCE, activated by either pharmacological (i.e. cyclopiazonic acid) or physiological (i.e. ATP) stimulation, was significantly higher in RCC-EPCs and was selectively sensitive to BTP-2, and to the trivalent cations, La(3+) and Gd(3+). Furthermore, 2-APB enhanced thapsigargin-evoked SOCE at low concentrations, whereas higher doses caused SOCE inhibition. Conversely, the anti-angiogenic drug, carboxyamidotriazole (CAI), blocked both SOCE and the intracellular Ca(2+) release. SOCE was associated to the over-expression of Orai1, Stim1, and transient receptor potential channel 1 (TRPC1) at both mRNA and protein level The intracellular Ca(2+) buffer, BAPTA, BTP-2, and CAI inhibited RCC-EPC proliferation and tubulogenesis. The genetic suppression of Stim1, Orai1, and TRPC1 blocked CPA-evoked SOCE in RCC-EPCs. CONCLUSIONS SOCE is remodelled in EPCs from RCC patients and stands out as a novel molecular target to interfere with RCC vascularisation due to its ability to control proliferation and tubulogenesis.
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Affiliation(s)
- Francesco Lodola
- Department of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Pavia, Italy
| | - Umberto Laforenza
- Section of Human Physiology, Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Elisa Bonetti
- Clinical Epidemiology Laboratory Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Dmitry Lim
- Department of Pharmaceutical Sciences, University of Eastern Piedmont “Amedeo Avogadro”, Novara, Italy
| | - Silvia Dragoni
- Department of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Pavia, Italy
| | - Cinzia Bottino
- Section of Human Physiology, Department of Molecular Medicine, University of Pavia, Pavia, Italy
| | - Hwei Ling Ong
- Secretory Physiology Section, Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Germano Guerra
- Department of Health Sciences, University of Molise, Campobasso, Italy
| | - Carlo Ganini
- Medical Oncology IRCCS Policlinico San Matteo, Pavia, Italy
| | - Margherita Massa
- Laboratory of Biotechnology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | | | - Indu S. Ambudkar
- Secretory Physiology Section, Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Armando A. Genazzani
- Department of Pharmaceutical Sciences, University of Eastern Piedmont “Amedeo Avogadro”, Novara, Italy
| | - Vittorio Rosti
- Clinical Epidemiology Laboratory Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | | | - Franco Tanzi
- Department of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Pavia, Italy
| | - Francesco Moccia
- Department of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Pavia, Italy
| | - Camillo Porta
- Medical Oncology IRCCS Policlinico San Matteo, Pavia, Italy
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41
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Maroto R, Kurosky A, Hamill OP. Mechanosensitive Ca(2+) permeant cation channels in human prostate tumor cells. Channels (Austin) 2012; 6:290-307. [PMID: 22874798 DOI: 10.4161/chan.21063] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The acquisition of cell motility plays a critical role in the spread of prostate cancer (PC), therefore, identifying a sensitive step that regulates PC cell migration should provide a promising target to block PC metastasis. Here, we report that a mechanosensitive Ca(2+)-permeable cation channel (MscCa) is expressed in the highly migratory/invasive human PC cell line, PC-3 and that inhibition of MscCa by Gd(3+) or GsMTx-4 blocks PC-3 cell migration and associated elevations in [Ca(2+)](i). Genetic suppression or overexpression of specific members of the canonical transient receptor potential Ca(2+) channel family (TRPC1 and TRPC3) also inhibit PC-3 cell migration, but they do so by mechanisms other that altering MscCa activity. Although LNCaP cells are nonmigratory, they also express relatively large MscCa currents, indicating that MscCa expression alone cannot confer motility on PC cells. MscCa in both cell lines show similar conductance and ion selectivity and both are functionally coupled via Ca(2+) influx to a small Ca(2+)-activated K(+) channel. However, MscCa in PC-3 and LNCaP cell patches show markedly different gating dynamics--while PC-3 cells typically express a sustained, non-inactivating MscCa current, LNCaP cells express a mechanically-fragile, rapidly inactivating MscCa current. Moreover, mechanical forces applied to the patch, can induce an irreversible transition from the transient to the sustained MscCa gating mode. Given that cancer cells experience increasing compressive and shear forces within a growing tumor, a similar shift in channel gating in situ would have significant effects on Ca(2+) signaling that may play a role in tumor progression.
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Affiliation(s)
- Rosario Maroto
- Department of Neuroscience and Cell Biology, The University of Texas Medical Branch, Galveston, TX, USA
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Methylation of the calcium channel regulatory subunit α2δ-3 (CACNA2D3) predicts site-specific relapse in oestrogen receptor-positive primary breast carcinomas. Br J Cancer 2012; 107:375-81. [PMID: 22644305 PMCID: PMC3394973 DOI: 10.1038/bjc.2012.231] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background: Calcium is an important intracellular messenger that mediates many biological processes that are relevant to the malignant process. Calcium ion channels are key in controlling the intracellular calcium, and little is known about their role in human cancer. Methods: We used qPCR and pyrosequencing to investigate expression and epigenetic regulation of the calcium channel regulatory subunit α2δ-3 (CACNA2D3) in breast cancer cell lines, primary cancers and metastatic lesions. Results: Expression of CACNA2D3 mRNA is regulated in breast cancer cell lines by methylation in the CpG island located in the 5′ regulatory region of the gene. Expression is upregulated by azacytidine (AZA) in cells with CpG island methylation but unaffected in cells lacking methylation. In primary breast carcinomas, methylation is more common in cancers, which subsequently relapse with loco-regional and, particularly, visceral metastatic disease in both oestrogen receptor-α (ER)-positive and -negative cases. Furthermore, CACNA2D3 CpG island is frequently methylated in breast cancer that has metastasised to the central nervous system. Conclusion: Methylation-dependent transcriptional silencing of CACNA2D3 may contribute to the metastatic phenotype of breast cancer. Analysis of methylation in the CACNA2D3 CpG island may have potential as a biomarker for risk of development of metastatic disease.
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43
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Shen H, Li Y, Liao Y, Zhang T, Liu Q, Du J. Lower blood calcium associates with unfavorable prognosis and predicts for bone metastasis in NSCLC. PLoS One 2012; 7:e34264. [PMID: 22479582 PMCID: PMC3316630 DOI: 10.1371/journal.pone.0034264] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2011] [Accepted: 02/24/2012] [Indexed: 01/22/2023] Open
Abstract
Ionized calcium was involved in various cellular signal pathways,and regulates many cellular processes, including those relevant to tumorigenesis. We hypothesis that imbalance of calcium homeostasis is correlated with development of lung carcinomas. We collected the clinical data of 1084 patients with non small cell lung cancer (NSCLC) treated in Shandong Provincial Hospital, Shandong University. Logistic regression was used to determine the association between calcium levels and clinical characteristics, and COX regression and Kaplan-Meier model were applied to analyze risk factors on overall survival. Blood electrolytes were tested before treatment; and nearly 16% patients with NSCLC were complained with decreased blood calcium, which is more frequent than that in other electrolytes. Further, Multivariate logistic regression analysis disclosed that there were significant correlation between blood calcium decrease and moderate and poor differentiation (P = 0.012, OR = 1.926 (1.203-4.219)), squamous cell carcinoma (P = 0.024, OR = 1.968(1.094-3.540)), and bone metastasis (P = 0.032, OR = 0.396(0.235-0.669)). In multivariate COX regression analysis, advanced lymph node stage and decreased blood calcium were significantly and independent, unfavorable prognostic factors (P<0.001). Finally, the Kaplan-Meier Survival curve revealed that blood calcium decrease was associated with shorter survival (Log-rank; χ(2) = 26.172,P<0.001). Our finding indicates that lower blood calcium levels are associated with a higher risk of unfavorable prognosis and bone metastasis of NSCLC.
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Affiliation(s)
- Hongchang Shen
- Bio-bank Center, Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, People's Republic of China
- Institute of Oncology, Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, People's Republic of China
| | - Yongqiu Li
- Department of Medical Administration, Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, People's Republic of China
| | - Yida Liao
- Bio-bank Center, Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, People's Republic of China
- Institute of Oncology, Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, People's Republic of China
| | - Tiehong Zhang
- Bio-bank Center, Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, People's Republic of China
- Department of Thoracic Surgery, Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, People's Republic of China
| | - Qi Liu
- Institute of Oncology, Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, People's Republic of China
| | - Jiajun Du
- Institute of Oncology, Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, People's Republic of China
- Department of Thoracic Surgery, Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, People's Republic of China
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44
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Jaffe LF. Stretch-activated calcium channels relay fast calcium waves propagated by calcium-induced calcium influx. Biol Cell 2012; 99:175-84. [PMID: 17302561 DOI: 10.1042/bc20060031] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
For nearly 30 years, fast calcium waves have been attributed to a regenerative process propagated by CICR (calcium-induced calcium release) from the endoplasmic reticulum. Here, I propose a model containing a new subclass of fast calcium waves which is propagated by CICI (calcium-induced calcium influx) through the plasma membrane. They are called fast CICI waves. These move at the order of 100 to 1000 microm/s (at 20 degrees C), rather than the order of 3 to 30 microm/s found for CICR. Moreover, in this proposed subclass, the calcium influx which drives calcium waves is relayed by stretch-activated calcium channels. This model is based upon reports from approx. 60 various systems. In seven of these reports, calcium waves were imaged, and, in five of these, evidence was presented that these waves were regenerated by CICI. Much of this model involves waves that move along functioning flagella and cilia. In these systems, waves of local calcium influx are thought to cause waves of local contraction by inducing the sliding of dynein or of kinesin past tubulin microtubules. Other cells which are reported to exhibit waves, which move at speeds in the fast CICI range, include ones from a dozen protozoa, three polychaete worms, three molluscs, a bryozoan, two sea urchins, one arthropod, four insects, Amphioxus, frogs, two fish and a vascular plant (Equisetum), together with numerous healthy, as well as cancerous, mammalian cells, including ones from human. In two of these systems, very gentle local mechanical stimulation is reported to initiate waves. In these non-flagellar systems, the calcium influxes are thought to speed the sliding of actinomyosin filaments past each other. Finally, I propose that this mechanochemical model could be tested by seeing if gentle mechanical stimulation induces waves in more of these systems and, more importantly, by imaging the predicted calcium waves in more of them.
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Affiliation(s)
- Lionel F Jaffe
- Marine Biological Laboratory, 7 MBL Street, Woods Hole, MA 02543, USA.
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45
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Wei C, Wang X, Zheng M, Cheng H. Calcium gradients underlying cell migration. Curr Opin Cell Biol 2011; 24:254-61. [PMID: 22196933 DOI: 10.1016/j.ceb.2011.12.002] [Citation(s) in RCA: 125] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Revised: 11/20/2011] [Accepted: 12/01/2011] [Indexed: 01/31/2023]
Abstract
The calcium ion is the simplest and most versatile second messenger in biology. Harboring a myriad of calcium effector proteins, migrating cells display an exquisite multiscaled and multilayered architecture of intracellular calcium dynamics. In motile fibroblasts, for instance, there are transient calcium microdomains ('calcium flickers') of ~5 μm in diameter and 10-2000 ms in duration, a rising flicker activity gradient along the rear-to-front axis, and a shallow background calcium concentration gradient in the opposite direction. When subjected to external gradients of guidance cues, local flicker gradients are created de novo in the leading edge, which steer cells to turn in new directions as defined by the asymmetry of the flicker activity, apparently by a stochastic decision-making mechanism. These recent findings provide a glimpse into how spatiotemporally coordinated calcium gradients orchestrate cellular behavior as complex as directional movement.
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Affiliation(s)
- Chaoliang Wei
- State Key Laboratory of Biomembrane and Membrane Biotechnology, Center for Life Sciences, the Institute of Molecular Medicine, Peking University, Beijing 100871, China
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46
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Abstract
In most cases, metastasis, not the primary tumour per se, is the main cause of mortality in cancer patients. In order to effectively escape the tumour, enter the circulation and establish secondary growth in distant organs cancer cells must develop an enhanced propensity to migrate. The ubiquitous second messenger Ca²⁺ is a crucial regulator of cell migration. Recently, a number of known molecular players in cellular Ca²⁺ homeostasis, including calcium release-activated calcium channel protein 1 (ORAI1), stromal interaction molecule 1 (STIM1) and transient receptor potential (TRP) channels, have been implicated in tumour cell migration and the metastatic cell phenotype. We discuss how these developments have increased our understanding of the Ca²⁺ dependence of pro-metastatic behaviours.
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Affiliation(s)
- Natalia Prevarskaya
- INSERM, U1003, Laboratoire de Physiologie Cellulaire, Equipe labellise par la Ligue contre le cancer, Villeneuve dAscq, F59650, France.
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47
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Neuroprotection by lomerizine, a prophylactic drug for migraine, against hydrogen peroxide-induced hippocampal neurotoxicity. Mol Cell Biochem 2011; 358:1-11. [PMID: 21656126 DOI: 10.1007/s11010-011-0913-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2011] [Accepted: 05/28/2011] [Indexed: 10/18/2022]
Abstract
Migraine is one of the risk factor for ischemic stroke. The purpose of this study was to examine the effect of lomerizine, a prophylactic drug for migraine, on H(2)O(2)-induced cell death of hippocampal neurons. Cytosolic Ca(2+) concentration was measured using fura-2 as a Ca(2+) indicator. Cell death was estimated by trypan blue exclusion. In rat-cultured hippocampal neurons, the addition of H(2)O(2) induced biphasic Ca(2+) elevations and cell death. The H(2)O(2)-induced biphasic Ca(2+) elevations and cell death only occurred when extracellular Ca(2+) was present. The biphasic Ca(2+) elevation was mediated by Ca(2+) influx through the plasma membrane, but not Ca(2+) release from the intracellular Ca(2+) store. Both the early and late phases of H(2)O(2)-induced Ca(2+) influx were reduced by either a T- or L-type voltage-dependent Ca(2+) channel (VDCC) blocker, lomerizine. In fact, L-type VDCC (α(1C) subunit) and T-type VDCC (α(1G) subunit) mRNA were expressed in rat hippocampal neurons. Although an L-type VDCC blocker, nifedipine, partly suppressed the late phase of Ca(2+) influx in response to H(2)O(2), a T-type VDCC blocker, mibefradil, reduced both phases of Ca(2+) influx. Moreover, lomerizine and mibefradil strongly reduced H(2)O(2)-induced cell death, and nifedipine weakly reduced it. These findings suggest that the inhibition of H(2)O(2)-induced Ca(2+) influx through T-type VDCC seems to be important in the protective effect of lomerizine against oxidative stress. It is possible that lomerizine may be a useful drug for prophylactic treatment of migraine, because migraine is a risk factor for ischemic stroke.
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48
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Parkash J, Asotra K. Calcium wave signaling in cancer cells. Life Sci 2010; 87:587-95. [PMID: 20875431 DOI: 10.1016/j.lfs.2010.09.013] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Accepted: 09/16/2010] [Indexed: 02/05/2023]
Abstract
Ca(2+) functions as an important signaling messenger right from beginning of life to the final moments of the end of life. Ca(2+) is needed at several steps of the cell cycle such as early G(1), at the G(1)/S, and G(2)/M transitions. The Ca(2+) signals in the form of time-dependent changes in intracellular Ca(2+) concentrations, [Ca(2+)](i), are presented as brief spikes organized into regenerative Ca(2+) waves. Ca(2+)-mediated signaling pathways have also been shown to play important roles in carcinogenesis such as transformation of normal cells to cancerous cells, tumor formation and growth, invasion, angiogenesis and metastasis. Since the global Ca(2+) oscillations arise from Ca(2+) waves initiated locally, it results in stochastic oscillations because although each cell has many IP(3)Rs and Ca(2+) ions, the law of large numbers does not apply to the initiating event which is restricted to very few IP(3)Rs due to steep Ca(2+) concentration gradients. The specific Ca(2+) signaling information is likely to be encoded in a calcium code as the amplitude, duration, frequency, waveform or timing of Ca(2+) oscillations and decoded again at a later stage. Since Ca(2+) channels or pumps involved in regulating Ca(2+) signaling pathways show altered expression in cancer, one can target these Ca(2+) channels and pumps as therapeutic options to decrease proliferation of cancer cells and to promote their apoptosis. These studies can provide novel insights into alterations in Ca(2+) wave patterns in carcinogenesis and lead to the development of newer technologies based on Ca(2+) waves for the diagnosis and therapy of cancer.
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Affiliation(s)
- Jai Parkash
- Robert Stempel College of Public Health and Social Work, Department of Environmental and Occupational Health, Florida International University, 11200 SW 8th Street, HLS-594, Miami, FL 33199, USA.
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49
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Chen JP, Luan Y, You CX, Chen XH, Luo RC, Li R. TRPM7 regulates the migration of human nasopharyngeal carcinoma cell by mediating Ca2+ influx. Cell Calcium 2010; 47:425-32. [DOI: 10.1016/j.ceca.2010.03.003] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Revised: 03/05/2010] [Accepted: 03/09/2010] [Indexed: 01/08/2023]
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50
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Ion channels and the hallmarks of cancer. Trends Mol Med 2010; 16:107-21. [PMID: 20167536 DOI: 10.1016/j.molmed.2010.01.005] [Citation(s) in RCA: 307] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Revised: 01/13/2010] [Accepted: 01/13/2010] [Indexed: 01/19/2023]
Abstract
Plasma membrane (PM) ion channels contribute to virtually all basic cellular processes and are also involved in the malignant phenotype of cancer cells. Here, we review the role of ion channels in cancer in the context of their involvement in the defined hallmarks of cancer: 1) self-sufficiency in growth signals, 2) insensitivity to antigrowth signals, 3) evasion of programmed cell death (apoptosis), 4) limitless replicative potential, 5) sustained angiogenesis and 6) tissue invasion and metastasis. Recent studies have indicated that the contribution of specific ion channels to these hallmarks varies for different types of cancer. Therefore, to determine the importance of ion channels as targets for cancer diagnosis and treatment their expression, function and regulation must be assessed for each cancer.
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