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Gubič Š, Montalbano A, Sala C, Becchetti A, Hendrickx LA, Van Theemsche KM, Pinheiro-Junior EL, Altadonna GC, Peigneur S, Ilaš J, Labro AJ, Pardo LA, Tytgat J, Tomašič T, Arcangeli A, Peterlin Mašič L. Immunosuppressive effects of new thiophene-based K V1.3 inhibitors. Eur J Med Chem 2023; 259:115561. [PMID: 37454520 DOI: 10.1016/j.ejmech.2023.115561] [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: 01/19/2023] [Revised: 06/08/2023] [Accepted: 06/08/2023] [Indexed: 07/18/2023]
Abstract
Voltage-gated potassium channel KV1.3 inhibitors have been shown to be effective in preventing T-cell proliferation and activation by affecting intracellular Ca2+ homeostasis. Here, we present the structure-activity relationship, KV1.3 inhibition, and immunosuppressive effects of new thiophene-based KV1.3 inhibitors with nanomolar potency on K+ current in T-lymphocytes and KV1.3 inhibition on Ltk- cells. The new KV1.3 inhibitor trans-18 inhibited KV1.3 -mediated current in phytohemagglutinin (PHA)-activated T-lymphocytes with an IC50 value of 26.1 nM and in mammalian Ltk- cells with an IC50 value of 230 nM. The KV1.3 inhibitor trans-18 also had nanomolar potency against KV1.3 in Xenopus laevis oocytes (IC50 = 136 nM). The novel thiophene-based KV1.3 inhibitors impaired intracellular Ca2+ signaling as well as T-cell activation, proliferation, and colony formation.
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Affiliation(s)
- Špela Gubič
- University of Ljubljana, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia
| | - Alberto Montalbano
- University of Florence, Department of Experimental and Clinical Medicine, I-50134, Florence, Italy
| | - Cesare Sala
- University of Florence, Department of Experimental and Clinical Medicine, I-50134, Florence, Italy
| | - Andrea Becchetti
- University of Milano-Bicocca, Department of Biotechnology and Biosciences, Piazza della Scienza 2, I-20126, Milano, Italy
| | - Louise Antonia Hendrickx
- University of Leuven, Toxicology and Pharmacology, Campus Gasthuisberg, Onderwijs en Navorsing 2, Herestraat 49, PO Box 922, 3000, Leuven, Belgium
| | - Kenny M Van Theemsche
- University of Antwerp, Department of Biomedical Sciences, Campus Drie Eiken, Universiteisplein 1, 2610, Wilrijk, Belgium; Ghent University, Department of Basic and Applied Medical Sciences, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Ernesto Lopes Pinheiro-Junior
- University of Leuven, Toxicology and Pharmacology, Campus Gasthuisberg, Onderwijs en Navorsing 2, Herestraat 49, PO Box 922, 3000, Leuven, Belgium
| | | | - Steve Peigneur
- University of Leuven, Toxicology and Pharmacology, Campus Gasthuisberg, Onderwijs en Navorsing 2, Herestraat 49, PO Box 922, 3000, Leuven, Belgium
| | - Janez Ilaš
- University of Ljubljana, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia
| | - Alain J Labro
- Ghent University, Department of Basic and Applied Medical Sciences, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Luis A Pardo
- Max-Planck Institute for Experimental Medicine, AG Oncophysiology, Hermann-Rein-Str. 3, 37075, Göttingen, Germany
| | - Jan Tytgat
- University of Leuven, Toxicology and Pharmacology, Campus Gasthuisberg, Onderwijs en Navorsing 2, Herestraat 49, PO Box 922, 3000, Leuven, Belgium
| | - Tihomir Tomašič
- University of Ljubljana, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia
| | - Annarosa Arcangeli
- University of Florence, Department of Experimental and Clinical Medicine, I-50134, Florence, Italy.
| | - Lucija Peterlin Mašič
- University of Ljubljana, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Aškerčeva cesta 7, 1000, Ljubljana, Slovenia.
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Xia C, Liu C, Ren S, Cai Y, Zhang Q, Xia C. Potassium channels, tumorigenesis and targeted drugs. Biomed Pharmacother 2023; 162:114673. [PMID: 37031494 DOI: 10.1016/j.biopha.2023.114673] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/03/2023] [Accepted: 04/06/2023] [Indexed: 04/11/2023] Open
Abstract
Potassium channels play an important role in human physiological function. Recently, various molecular mechanisms have implicated abnormal functioning of potassium channels in the proliferation, migration, invasion, apoptosis, and cancer stem cell phenotype formation. Potassium channels also mediate the association of tumor cells with the tumor microenvironment. Meanwhile, potassium channels are important targets for cancer chemotherapy. A variety of drugs exert anti-cancer effects by modulating potassium channels in tumor cells. Therefore, there is a need to understand how potassium channels participate in tumor development and progression, which could reveal new, novel targets for cancer diagnosis and treatment. This review summarizes the roles of voltage-gated potassium channels, calcium-activated potassium channels, inwardly rectifying potassium channels, and two-pore domain potassium channels in tumorigenesis and the underlying mechanism of potassium channel-targeted drugs. Therefore, the study lays the foundation for rational and effective drug design and individualized clinical therapeutics.
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Affiliation(s)
- Cong Xia
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province 116023, China
| | - Can Liu
- Affiliated Foshan Maternity and Child Healthcare Hospital, Southern Medical University, Foshan, Guangdong Province 528099, China; School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong Province 510515, China
| | - Shuangyi Ren
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province 116023, China
| | - Yantao Cai
- Affiliated Foshan Maternity and Child Healthcare Hospital, Southern Medical University, Foshan, Guangdong Province 528099, China
| | - Qianshi Zhang
- Department of Gastrointestinal Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning Province 116023, China.
| | - Chenglai Xia
- Affiliated Foshan Maternity and Child Healthcare Hospital, Southern Medical University, Foshan, Guangdong Province 528099, China; School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong Province 510515, China.
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Yavuz M, Demircan T. A potent ion channel blocker, hydroquinidine, exhibits strong anti-cancer activity on colon, pancreatic, and hepatocellular cancer cells. Mol Biol Rep 2023; 50:2611-2621. [PMID: 36633730 DOI: 10.1007/s11033-023-08245-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 01/04/2023] [Indexed: 01/13/2023]
Abstract
BACKGROUND Despite recent advances in drug discovery, cancer is still one of the most lethal health problems worldwide. In most cases, standard therapy methods and multi-modal treatments fail, and new therapeutic approaches are required. Ion channels are essential in multiple cellular processes regulating cell division, differentiation, and death. Recent studies on ion-channel modulators emphasize their potential to suppress tumor growth. In that regard, we reasoned that an underinvestigated potassium channel modulator, Hydroquinidine (HQ), may exhibit an anti-carcinogenic activity. METHODS AND RESULTS HQ's potential as an anti-neoplastic compound was examined using colony formation assay, wound healing assay, soft agar assay, and Annexin-V assay in the colon, pancreatic, and hepatocellular carcinomas. Our findings unveiled a remarkable anti-cancer activity of HQ by decreasing colony-forming ability, migration capacity, tumorigenicity, and proliferation and stimulating cellular death. HQ significantly reduced the formed colonies and tumorigenicity for all cells. It displayed a significant anti-migrative effect on hepatocellular carcinoma cells and promoted apoptosis in pancreatic and liver cancer cells. The altered gene expression profile upon HQ treatment was in accordance with observed cellular effects. Cells incubated with HQ downregulated the genes acting in cell division and survival, whereas the expression level of genes functioning in cell cycle arrest and apoptosis was elevated. CONCLUSION Our data indicate HQ's competency to limit cancer growth and suggest its utilization as a novel potent anti-carcinogenic agent. Future studies are necessary to provide new insights into the HQ action mechanism and to evaluate its capacity in in-vivo.
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Affiliation(s)
- Mervenur Yavuz
- Graduate School of Natural and Applied Sciences, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Turan Demircan
- School of Medicine, Medical Biology Department, Muğla Sıtkı Koçman University, Muğla, Turkey.
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Li M, Tian P, Zhao Q, Ma X, Zhang Y. Potassium channels: Novel targets for tumor diagnosis and chemoresistance. Front Oncol 2023; 12:1074469. [PMID: 36703789 PMCID: PMC9872028 DOI: 10.3389/fonc.2022.1074469] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 12/21/2022] [Indexed: 01/11/2023] Open
Abstract
In recent years, the role of potassium channels in tumors has been intensively studied. Potassium channel proteins are widely involved in various physiological and pathological processes of cells. The expression and dysfunction of potassium channels are closely related to tumor progression. Potassium channel blockers or activators present antitumor effects by directly inhibiting tumor growth or enhancing the potency of classical antitumor agents in combination therapy. This article reviews the mechanisms by which potassium channels contribute to tumor development in various tumors in recent years, introduces the potential of potassium channels as diagnostic targets and therapeutic means for tumors, and provides further ideas for the proper individualized treatment of tumors.
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Affiliation(s)
- Meizeng Li
- School of Basic Medical Science, Weifang Medical University, Weifang, China
| | - Peijie Tian
- School of Basic Medical Science, Weifang Medical University, Weifang, China
| | - Qing Zhao
- School of Basic Medical Science, Weifang Medical University, Weifang, China
| | - Xialin Ma
- School of Basic Medical Science, Weifang Medical University, Weifang, China
| | - Yunxiang Zhang
- Department of Pathology, Weifang People’ s Hospital, Weifang, China,*Correspondence: Yunxiang Zhang,
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