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Liu P, Yang Z, Wang Y, Sun A. Role of STIM1 in the Regulation of Cardiac Energy Substrate Preference. Int J Mol Sci 2023; 24:13188. [PMID: 37685995 PMCID: PMC10487555 DOI: 10.3390/ijms241713188] [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: 07/15/2023] [Revised: 08/20/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
The heart requires a variety of energy substrates to maintain proper contractile function. Glucose and long-chain fatty acids (FA) are the major cardiac metabolic substrates under physiological conditions. Upon stress, a shift of cardiac substrate preference toward either glucose or FA is associated with cardiac diseases. For example, in pressure-overloaded hypertrophic hearts, there is a long-lasting substrate shift toward glucose, while in hearts with diabetic cardiomyopathy, the fuel is switched toward FA. Stromal interaction molecule 1 (STIM1), a well-established calcium (Ca2+) sensor of endoplasmic reticulum (ER) Ca2+ store, is increasingly recognized as a critical player in mediating both cardiac hypertrophy and diabetic cardiomyopathy. However, the cause-effect relationship between STIM1 and glucose/FA metabolism and the possible mechanisms by which STIM1 is involved in these cardiac metabolic diseases are poorly understood. In this review, we first discussed STIM1-dependent signaling in cardiomyocytes and metabolic changes in cardiac hypertrophy and diabetic cardiomyopathy. Second, we provided examples of the involvement of STIM1 in energy metabolism to discuss the emerging role of STIM1 in the regulation of energy substrate preference in metabolic cardiac diseases and speculated the corresponding underlying molecular mechanisms of the crosstalk between STIM1 and cardiac energy substrate preference. Finally, we briefly discussed and presented future perspectives on the possibility of targeting STIM1 to rescue cardiac metabolic diseases. Taken together, STIM1 emerges as a key player in regulating cardiac energy substrate preference, and revealing the underlying molecular mechanisms by which STIM1 mediates cardiac energy metabolism could be helpful to find novel targets to prevent or treat cardiac metabolic diseases.
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Affiliation(s)
- Panpan Liu
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Zhuli Yang
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Youjun Wang
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing 100875, China
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Aomin Sun
- Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing 100875, China
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, College of Life Sciences, Beijing Normal University, Beijing 100875, China
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2
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Mardjan MID, Hariadi MF, Putri IM, Musyarrofah NA, Salimah M, Priatmoko, Purwono B, Commeiras L. Ultrasonic-assisted-synthesis of isoindolin-1-one derivatives. RSC Adv 2022; 12:19016-19021. [PMID: 35873335 PMCID: PMC9241359 DOI: 10.1039/d2ra02720h] [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: 04/29/2022] [Accepted: 06/15/2022] [Indexed: 11/21/2022] Open
Abstract
A small library of 3-hydroxyisoindolin-1-ones has been prepared from 3-alkylidenephtalides under ultrasonic irradiation. This practical synthesis is featured by group tolerance, high efficiency and yields. The reaction can also be performed in multigram scale and be further extended to access other motifs of isoindolin-1-ones in a one-pot fashion. Functionalized isoindolin-1-ones have been prepared in short reaction time and excellent yields from 3-alkylidenephtalides and primary amines under ultrasonic irradiation.![]()
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Affiliation(s)
- Muhammad Idham Darussalam Mardjan
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Muhamad Fadhly Hariadi
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Indah Mutiara Putri
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Nilna Amalia Musyarrofah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Muflihah Salimah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Priatmoko
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Bambang Purwono
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada Bulaksumur POS BLS 21 Yogyakarta 55281 Indonesia
| | - Laurent Commeiras
- Aix Marseille Univ., CNRS, Centrale Marseille, iSm2 Marseille 13013 France
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3
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Cañas CA, Castaño-Valencia S, Castro-Herrera F. Pharmacological blockade of KV1.3 channel as a promising treatment in autoimmune diseases. J Transl Autoimmun 2022; 5:100146. [PMID: 35146402 PMCID: PMC8818563 DOI: 10.1016/j.jtauto.2022.100146] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/20/2022] [Accepted: 01/22/2022] [Indexed: 11/27/2022] Open
Abstract
There are more than 100 autoimmune diseases (AD), which have a high prevalence that ranges between 5% and 8% of the general population. Type I diabetes mellitus, multiple sclerosis, systemic lupus erythematosus and rheumatoid arthritis remain the health problem of highest concern among people worldwide due to its high morbidity and mortality. The development of new treatment strategies has become a research hotspot. In recent years, the study of the ion channels presents in the cells of the immune system, regarding their functional role, the consequences of mutations in their genes and the different ways of blocking them are the subject of intense research. Pharmacological blockade of KV1.3 channel inhibits Ca2+ signaling, T cell proliferation, and pro-inflammatory interleukins production in human CD4+ effector memory T cells. These cells mediated most of the AD and their inhibition is a promising therapeutic target. In this review, we will highlight the biological function of KV1.3 channel in T cells, consequence of the pharmacological inhibition (through anemone and scorpion toxins, synthetic peptides, nanoparticles, or monoclonal antibodies) as well as the possible therapeutical application in AD.
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Affiliation(s)
- Carlos A. Cañas
- Universidad Icesi, CIRAT, Centro de Investigación en Reumatología, Autoinmunidad y Medicina Traslacional, Cali, Colombia
- Unit of Rheumatology, Fundación Valle del Lili, Cali, Colombia
- Corresponding author. Rheumatology Unit, Fundación Valle del Lili, Cra. 98 18-49, Cali, 760032, Colombia.
| | - Santiago Castaño-Valencia
- Department of Physiological Sciences, Department of Health Sciences, Universidad del Valle, Cali, Colombia
| | - Fernando Castro-Herrera
- Department of Physiological Sciences, Department of Health Sciences, Universidad del Valle, Cali, Colombia
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4
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Smolobochkin AV, Gazizov AS, Burilov AR, Pudovik MA, Sinyashin OG. Advances in the synthesis of heterocycles bearing an endocyclic urea moiety. RUSSIAN CHEMICAL REVIEWS 2021. [DOI: 10.1070/rcr4988] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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5
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Ma RJ, Sun JT, Liu CH, Chen L, Si CM, Wei BG. Synthesis of 1-benzylisoindoline and 1-benzyl-tetrahydroisoquinoline through nucleophilic addition of organozinc reagents to N, O-acetals. Org Biomol Chem 2020; 18:7139-7150. [PMID: 32966517 DOI: 10.1039/d0ob01477j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new approach to access 1-benzylisoindoline and 1-benzyl-tetrahydroisoquinoline has been developed through nucleophilic addition of organozinc reagents to N,O-acetals. A number of substituted organozinc reagents were amenable for this transformation, and the desired products were obtained with excellent yields. Moreover, Sc(OTf)3 proved to be an effective catalyst for the formation of 1-benzylisoindoline and 1-benzyl-tetrahydroisoquinoline using such nucleophilic addition.
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Affiliation(s)
- Rui-Jun Ma
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China. and Center for Gastrointestinal Endoscopy, Shanxi Provincial People's Hospital, 29 ShuangTa Road, TaiYuan 030012, China
| | - Jian-Ting Sun
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Chang-Hong Liu
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Ling Chen
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Chang-Mei Si
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Bang-Guo Wei
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
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6
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Noble M, Lin QT, Sirko C, Houpt JA, Novello MJ, Stathopulos PB. Structural Mechanisms of Store-Operated and Mitochondrial Calcium Regulation: Initiation Points for Drug Discovery. Int J Mol Sci 2020; 21:E3642. [PMID: 32455637 PMCID: PMC7279490 DOI: 10.3390/ijms21103642] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/11/2020] [Accepted: 05/17/2020] [Indexed: 12/18/2022] Open
Abstract
Calcium (Ca2+) is a universal signaling ion that is essential for the life and death processes of all eukaryotes. In humans, numerous cell stimulation pathways lead to the mobilization of sarco/endoplasmic reticulum (S/ER) stored Ca2+, resulting in the propagation of Ca2+ signals through the activation of processes, such as store-operated Ca2+ entry (SOCE). SOCE provides a sustained Ca2+ entry into the cytosol; moreover, the uptake of SOCE-mediated Ca2+ by mitochondria can shape cytosolic Ca2+ signals, function as a feedback signal for the SOCE molecular machinery, and drive numerous mitochondrial processes, including adenosine triphosphate (ATP) production and distinct cell death pathways. In recent years, tremendous progress has been made in identifying the proteins mediating these signaling pathways and elucidating molecular structures, invaluable for understanding the underlying mechanisms of function. Nevertheless, there remains a disconnect between using this accumulating protein structural knowledge and the design of new research tools and therapies. In this review, we provide an overview of the Ca2+ signaling pathways that are involved in mediating S/ER stored Ca2+ release, SOCE, and mitochondrial Ca2+ uptake, as well as pinpoint multiple levels of crosstalk between these pathways. Further, we highlight the significant protein structures elucidated in recent years controlling these Ca2+ signaling pathways. Finally, we describe a simple strategy that aimed at applying the protein structural data to initiating drug design.
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Affiliation(s)
- Megan Noble
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A5C1, Canada; (M.N.); (Q.-T.L.); (C.S.); (M.J.N.)
| | - Qi-Tong Lin
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A5C1, Canada; (M.N.); (Q.-T.L.); (C.S.); (M.J.N.)
| | - Christian Sirko
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A5C1, Canada; (M.N.); (Q.-T.L.); (C.S.); (M.J.N.)
| | - Jacob A. Houpt
- Department of Medicine, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A5C1, Canada;
| | - Matthew J. Novello
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A5C1, Canada; (M.N.); (Q.-T.L.); (C.S.); (M.J.N.)
| | - Peter B. Stathopulos
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, ON N6A5C1, Canada; (M.N.); (Q.-T.L.); (C.S.); (M.J.N.)
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7
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Hann J, Bueb JL, Tolle F, Bréchard S. Calcium signaling and regulation of neutrophil functions: Still a long way to go. J Leukoc Biol 2019; 107:285-297. [PMID: 31841231 DOI: 10.1002/jlb.3ru0719-241r] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/08/2019] [Accepted: 12/01/2019] [Indexed: 12/22/2022] Open
Abstract
Neutrophils are the most abundant leukocytes in blood and disruption in their functions often results in an increased risk of serious infections and inflammatory autoimmune diseases. Following recent discoveries in their influence over disease progression, a resurgence of interest for neutrophil biology has taken place. The multitude of signaling pathways activated by the engagement of numerous types of receptors, with which neutrophils are endowed, reflects the functional complexity of these cells. It is therefore not surprising that there remains a huge lack in the understanding of molecular mechanisms underlining neutrophil functions. Moreover, studies on neutrophils are undoubtedly limited by the difficulty to efficiently edit the cell's genome. Over the past 30 years, compelling evidence has clearly highlighted that Ca2+ -signaling is governing the key processes associated with neutrophil functions. The confirmation of the role of an elevation of intracellular Ca2+ concentration has come from studies on NADPH oxidase activation and phagocytosis. In this review, we give an overview and update of our current knowledge on the role of Ca2+ mobilization in the regulation of pro-inflammatory functions of neutrophils. In particular, we stress the importance of Ca2+ in the formation of NETs and cytokine secretion in the light of newest findings. This will allow us to embrace how much further we have to go to understand the complex dynamics of Ca2+ -dependent mechanisms in order to gain more insights into the role of neutrophils in the pathogenesis of inflammatory diseases. The potential for therapeutics to regulate the neutrophil functions, such as Ca2+ influx inhibitors to prevent autoimmune and chronic inflammatory diseases, has been discussed in the last part of the review.
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Affiliation(s)
- J Hann
- Life Sciences Research Unit, Immune Cells and Inflammatory Diseases Group, University of Luxembourg, Belvaux, Luxembourg
| | - J-L Bueb
- Life Sciences Research Unit, Immune Cells and Inflammatory Diseases Group, University of Luxembourg, Belvaux, Luxembourg
| | - F Tolle
- Life Sciences Research Unit, Immune Cells and Inflammatory Diseases Group, University of Luxembourg, Belvaux, Luxembourg
| | - S Bréchard
- Life Sciences Research Unit, Immune Cells and Inflammatory Diseases Group, University of Luxembourg, Belvaux, Luxembourg
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8
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Hei YY, Song JL, Zhan XC, Zhang XG, Deng CL. The rhodium-catalyzed selective oxidative Heck reaction of amides with allylic esters. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.05.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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CRAC channels as targets for drug discovery and development. Cell Calcium 2018; 74:147-159. [PMID: 30075400 DOI: 10.1016/j.ceca.2018.07.005] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/16/2018] [Accepted: 07/16/2018] [Indexed: 12/13/2022]
Abstract
Calcium release-activated calcium (CRAC) channels have been the target of drug discovery for many years. The identification of STIM and Orai proteins as key components of CRAC channels greatly facilitated this process because their co-expression in cell lines produced electrophysiological currents (ICRAC) much larger than those in native cells, making it easier to confirm and characterize the effects of modulatory compounds. A driving force in the quest for CRAC channel drugs has been the immunocompromised phenotype displayed by humans and mice with null or loss-of-function mutations in STIM1 or Orai1, suggesting that CRAC channel inhibitors could be useful therapeutics for autoimmune or inflammatory conditions. Emerging data also suggests that other therapeutic conditions may benefit from CRAC channel inhibition. However, only recently have CRAC channel inhibitors reached clinical trials. This review discusses the challenges associated with drug discovery and development on CRAC channels and the approaches employed to date, as well as the results, starting from initial high-throughput screens for CRAC channel modulators and progressing through target selection and justification, descriptions of pharmacological, safety and toxicological profiles of compounds, and finally the entry of CRAC channel inhibitors into clinical trials.
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10
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Stevenson RJ, Azimi I, Flanagan JU, Inserra M, Vetter I, Monteith GR, Denny WA. An SAR study of hydroxy-trifluoromethylpyrazolines as inhibitors of Orai1-mediated store operated Ca 2+ entry in MDA-MB-231 breast cancer cells using a convenient Fluorescence Imaging Plate Reader assay. Bioorg Med Chem 2018; 26:3406-3413. [PMID: 29776832 DOI: 10.1016/j.bmc.2018.05.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/01/2018] [Accepted: 05/08/2018] [Indexed: 12/30/2022]
Abstract
The proteins Orai1 and STIM1 control store-operated Ca2+ entry (SOCE) into cells. SOCE is important for migration, invasion and metastasis of MDA-MB-231 human triple negative breast cancer (TNBC) cells and has been proposed as a target for cancer drug discovery. Two hit compounds from a medium throughput screen, displayed encouraging inhibition of SOCE in MDA-MB-231 cells, as measured by a Fluorescence Imaging Plate Reader (FLIPR) Ca2+ assay. Following NMR spectroscopic analysis of these hits and reassignment of their structures as 5-hydroxy-5-trifluoromethylpyrazolines, a series of analogues was prepared via thermal condensation reactions between substituted acylhydrazones and trifluoromethyl 1,3-dicarbonyl arenes. Structure-activity relationship (SAR) studies showed that small lipophilic substituents at the 2- and 3-positions of the RHS and 2-, 3- and 4-postions of the LHS terminal benzene rings improved activity, resulting in a novel class of potent and selective inhibitors of SOCE.
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Affiliation(s)
- Ralph J Stevenson
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Iman Azimi
- The School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia; Mater Research Institute, The University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia; Division of Pharmacy, College of Health and Medicine, University of Tasmania, Hobart, Tasmania, Australia
| | - Jack U Flanagan
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Marco Inserra
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia; School of Pharmacy, The University of Queensland, Woolloongabba, Queensland 4102, Australia
| | - Irina Vetter
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia; School of Pharmacy, The University of Queensland, Woolloongabba, Queensland 4102, Australia
| | - Gregory R Monteith
- The School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia; Mater Research Institute, The University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
| | - William A Denny
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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11
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Azimi I, Flanagan JU, Stevenson RJ, Inserra M, Vetter I, Monteith GR, Denny WA. Evaluation of known and novel inhibitors of Orai1-mediated store operated Ca 2+ entry in MDA-MB-231 breast cancer cells using a Fluorescence Imaging Plate Reader assay. Bioorg Med Chem 2016; 25:440-449. [PMID: 27856238 DOI: 10.1016/j.bmc.2016.11.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 11/01/2016] [Accepted: 11/03/2016] [Indexed: 12/20/2022]
Abstract
The Orai1 Ca2+ permeable ion channel is an important component of store operated Ca2+ entry (SOCE) in cells. It's over-expression in basal molecular subtype breast cancers has been linked with poor prognosis, making it a potential target for drug development. We pharmacologically characterised a number of reported inhibitors of SOCE in MDA-MB-231 breast cancer cells using a convenient Fluorescence Imaging Plate Reader (FLIPR) assay, and show that the rank order of their potencies in this assay is the same as those reported in a wide range of published assays. The assay was also used in a screening project seeking novel inhibitors. Following a broad literature survey of classes of calcium channel inhibitors we used simplified ligand structures to query the ZINC on-line database, and following two iterations of refinement selected a novel Orai1-selective dichlorophenyltriazole hit compound. Analogues of this were synthesized and evaluated in the FLIPR assay to develop structure-activity relationships (SAR) for the three domains of the hit; triazole (head), dichlorophenyl (body) and substituted phenyl (tail). For this series, the results suggested the need for a lipophilic tail domain and an out-of-plane twist between the body and tail domains.
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Affiliation(s)
- Iman Azimi
- The School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia; Mater Research Institute, The University of Queensland, Brisbane, Queensland, Australia; Translational Research Institute, Brisbane, Queensland, Australia
| | - Jack U Flanagan
- Auckland Cancer Society Research Centre, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Ralph J Stevenson
- Auckland Cancer Society Research Centre, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Marco Inserra
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia; School of Pharmacy, The University of Queensland, Woolloongabba, Queensland 4102, Australia
| | - Irina Vetter
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia; School of Pharmacy, The University of Queensland, Woolloongabba, Queensland 4102, Australia
| | - Gregory R Monteith
- The School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia; Mater Research Institute, The University of Queensland, Brisbane, Queensland, Australia; Translational Research Institute, Brisbane, Queensland, Australia
| | - William A Denny
- Auckland Cancer Society Research Centre, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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12
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Abstract
Aberrant Ca(2+) release-activated Ca(2+) (CRAC) channel activity has been implicated in a number of human disorders, including immunodeficiency, autoimmunity, occlusive vascular diseases and cancer, thus placing CRAC channels among the important targets for the treatment of these disorders. We briefly summarize herein the molecular basis and activation mechanism of CRAC channel and focus on discussing several pharmacological inhibitors of CRAC channels with respect to their biological activity, mechanisms of action and selectivity over other types of Ca(2+) channel in different types of cells.
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13
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Sampath B, Sankaranarayanan K. Glu106 targeted inhibitors of ORAI1 as potential Ca 2+ release-activated Ca 2+ (CRAC) channel blockers - molecular modeling and docking studies. J Recept Signal Transduct Res 2016; 36:572-585. [PMID: 26895524 DOI: 10.3109/10799893.2016.1141956] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Calcium release-activated calcium modulator 1(ORAI1) is an integral component of the calcium release-activated calcium channel (CRAC) channel complex and plays a central role in regulating Ca2 + concentrations in T-lymphocytes. It is critical for many physiological processes, including cell-proliferation, cytokine production and activation of the immune system. Loss of ORAI1 function is linked with rheumatoid arthritis (RA) and hence pharmacological blockers of ORAI1 could be potential therapeutic agents for the treatment of RA. In this study, we have used a high-throughput screening approach to inhibit the binding of Ca2+ toward ORAI1 and the interactions are verified through induced fit docking. The results hint that these compounds act by possibly binding with, and thereby blocking Ca2+-binding with ORAI1 (E106). The molecular dynamics (MD) simulations shows strong support toward the hit compounds by showing the ligand potency throughout the simulation timescale of 30 ns. We have thus identified a novel class of highly stable, potential lead compounds that directly bind with the selectivity filter region E106 and block Ca2+ binding on ORAI1. This resulting alteration in the pore geometry of ORAI1 due to the strong blocking mechanism of lead compounds will greatly diminish its function and the downstream activities that result from the same including decreased production of cytokines in autoimmune disorders. This study may lay the foundation for finding novel lead compounds for clinical trials that could positively modulate the course of autoimmune disorders with ORAI1 as its specific target.
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Affiliation(s)
- Bhuvaneshwari Sampath
- a Ion Channel Biology Laboratory, AU-KBC Research Centre, Madras Institute of Technology, Anna University , Chennai , Tamil Nadu , India
| | - Kavitha Sankaranarayanan
- a Ion Channel Biology Laboratory, AU-KBC Research Centre, Madras Institute of Technology, Anna University , Chennai , Tamil Nadu , India
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