1
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Sumran G, Jain N, Kumar P, Aggarwal R. Trifluoromethyl-β-dicarbonyls as Versatile Synthons in Synthesis of Heterocycles. Chemistry 2024; 30:e202303599. [PMID: 38055226 DOI: 10.1002/chem.202303599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/01/2023] [Accepted: 12/04/2023] [Indexed: 12/07/2023]
Abstract
Trifluoromethyl group relishes a privileged position in the realm of medicinal chemistry because its incorporation into organic molecules often enhances the bioactivity by altering pharmacological profile of molecule. Trifluoromethyl-β-dicarbonyls have emerged as pivotal building blocks in synthetic organic chemistry due to their facile accessibility, stability and remarkable versatility. Owing to presence of nucleophilic and electrophilic sites, they offer multifunctional sites for the reaction. This review covers a meticulous exploration of their multifaceted role, encompassing an in-depth analysis of mechanism, extensive scope, limitations and wide-ranging applications in diverse organic synthesis, covering the literature from the 21st century. This comprehensive review encapsulates the applications of trifluoromethyl-β-dicarbonyls and their synthetic equivalents as precursors of complex and diverse heterocyclic scaffolds, fused heterocycles and spirocyclic compounds having medicinal and material importance. Their potent synthetic utility in cyclocondensation reactions with binucleophiles, cycloaddition reactions, C-C bond formations, asymmetric multicomponent reactions using classical/solvent-free/catalytic synthesis have been presented. Influence of unsymmetrical trifluoromethyl-β-diketones on regioselectivity of transformation is also reviewed. This review will benefit the synthetic and pharmaceutical communities to explore trifluoromethyl-β-dicarbonyls as trifluoromethyl building blocks for fabrication of heterocyclic scaffolds having implementation into drug discovery programs in the imminent future.
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Affiliation(s)
- Garima Sumran
- Department of Chemistry, D. A. V. College (Lahore), Ambala City, 134 003, Haryana, India
| | - Naman Jain
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136 119, India
| | - Prince Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136 119, India
| | - Ranjana Aggarwal
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136 119, India
- CSIR-National Institute of Science Communication and Policy Research, New Delhi, 110012, India
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2
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Li W, Li H, Qiu J, Wang Z, Li X, Pan YM, Hou C, Li H. Synthesis of 2-Pyrazolines with a CF 3- and Alkyne-Substituted Quaternary Carbon Center via [3 + 2] Cycloaddition of β-CF 3-1,3-enynes and Diazoacetates. J Org Chem 2022; 87:12477-12481. [PMID: 36070608 DOI: 10.1021/acs.joc.2c01428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Given the importance of both the CF3 group and the alkyne moiety in synthetic/medicinal chemistry, we report here the first example of efficient synthesis of 2-pyrazolines with a CF3- and alkyne-substituted quaternary carbon center. This methodology has the advantages of high functional group compatibility, the avoidance of base and open-flask conditions, easily available and easy to handle reagent, and broad substrate scope. Notably, this protocol allows for the late-stage functionalization of biologically active molecules and the gram-scale synthesis.
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Affiliation(s)
- Wei Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Hengyuan Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Jie Qiu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Zhenhui Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Xiaofeng Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Ying-Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Cheng Hou
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Huaifeng Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
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3
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Stanitska M, Mahmoudi M, Pokhodylo N, Lytvyn R, Volyniuk D, Tomkeviciene A, Keruckiene R, Obushak M, Grazulevicius JV. Exciplex-Forming Systems of Physically Mixed and Covalently Bonded Benzoyl-1 H-1,2,3-Triazole and Carbazole Moieties for Solution-Processed White OLEDs. J Org Chem 2022; 87:4040-4050. [PMID: 35243859 PMCID: PMC8938954 DOI: 10.1021/acs.joc.1c02784] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Using the newly designed exciplex-forming 1,2,3-triazole-based acceptors with fast and efficient singlet → triplet intersystem crossing (ISC) processes, carbazole and benzoyl-1H-1,2,3-triazole derivatives were synthesized by Dimroth-type 1,2,3-triazole ring formation and Ullmann-Goldberg C-N coupling reactions. Due to the exciplex formation between covalently bonded electron-donating (carbazole) and 1,2,3-triazole-based electron-accepting moieties with small singlet-triplet splitting (0.07-0.13 eV), the compounds exhibited ISC-assisted bluish-green thermally activated delayed fluorescence. The compounds were characterized by high triplet energy levels ranging from 2.93 to 2.98 eV. The most efficient exciplex-type thermally activated delayed fluorescence was observed for ortho-substituted carbazole-benzoyl-1H-1,2,3-triazole which was selected as a host in the structure of efficient solution-processed white light-emitting diodes. The best device exhibited a maximum power efficiency of 10.7 lm/W, current efficiency of 18.4 cd/A, and quantum efficiency of 7.1%. This device also showed the highest brightness exceeding 10 thousand cd/m2. Usage of the exciplex-forming host allowed us to achieve a low turn-on voltage of 3.6 V. High-quality white electroluminescence was obtained with the close to nature white color coordinates (0.31, 0.34) and a color rendering index of 92.
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Affiliation(s)
- Mariia Stanitska
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Baršausko Str. 59, LT-51423 Kaunas, Lithuania.,Ivan Franko National University of Lviv, Kyryla i Mefodiya 6, 79005 Lviv, Ukraine
| | - Malek Mahmoudi
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Baršausko Str. 59, LT-51423 Kaunas, Lithuania
| | - Nazariy Pokhodylo
- Ivan Franko National University of Lviv, Kyryla i Mefodiya 6, 79005 Lviv, Ukraine
| | - Roman Lytvyn
- Ivan Franko National University of Lviv, Kyryla i Mefodiya 6, 79005 Lviv, Ukraine
| | - Dmytro Volyniuk
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Baršausko Str. 59, LT-51423 Kaunas, Lithuania
| | - Ausra Tomkeviciene
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Baršausko Str. 59, LT-51423 Kaunas, Lithuania
| | - Rasa Keruckiene
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Baršausko Str. 59, LT-51423 Kaunas, Lithuania
| | - Mykola Obushak
- Ivan Franko National University of Lviv, Kyryla i Mefodiya 6, 79005 Lviv, Ukraine
| | - Juozas Vidas Grazulevicius
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, Baršausko Str. 59, LT-51423 Kaunas, Lithuania
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4
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Mironov ME, Borisov SA, Rybalova TV, Baev DS, Tolstikova TG, Shults EE. Synthesis of Anti-Inflammatory Spirostene-Pyrazole Conjugates by a Consecutive Multicomponent Reaction of Diosgenin with Oxalyl Chloride, Arylalkynes and Hydrazines or Hydrazones. Molecules 2021; 27:molecules27010162. [PMID: 35011399 PMCID: PMC8746855 DOI: 10.3390/molecules27010162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/17/2021] [Accepted: 12/23/2021] [Indexed: 11/16/2022] Open
Abstract
Steroid sapogenin diosgenin is of significant interest due to its biological activity and synthetic application. A consecutive one-pot reaction of diosgenin, oxalyl chloride, arylacetylenes, and phenylhydrazine give rise to steroidal 1,3,5-trisubstituted pyrazoles (isolated yield 46–60%) when the Stephens–Castro reaction and heterocyclization steps were carried out by heating in benzene. When the cyclization step of alkyndione with phenylhydrazine was performed in 2-methoxyethanol at room temperature, steroidal α,β-alkynyl (E)- and (Z)-hydrazones were isolated along with 1,3,5-trisubstituted pyrazole and the isomeric 2,3,5-trisubstituted pyrazole. The consecutive reaction of diosgenin, oxalyl chloride, phenylacetylene and benzoic acid hydrazides efficiently forms steroidal 1-benzoyl-5-hydroxy-3-phenylpyrazolines. The structure of new compounds was unambiguously corroborated by comprehensive NMR spectroscopy, mass-spectrometry, and X-ray structure analyses. Performing the heterocyclization step of ynedione with hydrazine monohydrate in 2-methoxyethanol allowed the synthesis of 5-phenyl substituted steroidal pyrazole, which was found to exhibit high anti-inflammatory activity, comparable to that of diclofenac sodium, a commercial pain reliever. It was shown by molecular docking that the new derivatives are incorporated into the binding site of the protein Keap1 Kelch-domain by their alkynylhydrazone or pyrazole substituent with the formation of more non-covalent bonds and have higher affinity than the initial spirostene core.
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Affiliation(s)
- Maksim E. Mironov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Academician Lavrentyev Ave., 9, 630090 Novosibirsk, Russia; (M.E.M.); (S.A.B.); (T.V.R.); (D.S.B.); (T.G.T.)
- Department of Natural Sciences, Novosibirsk State University, Piragova Str., 1, 630090 Novosibirsk, Russia
| | - Sergey A. Borisov
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Academician Lavrentyev Ave., 9, 630090 Novosibirsk, Russia; (M.E.M.); (S.A.B.); (T.V.R.); (D.S.B.); (T.G.T.)
| | - Tatyana V. Rybalova
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Academician Lavrentyev Ave., 9, 630090 Novosibirsk, Russia; (M.E.M.); (S.A.B.); (T.V.R.); (D.S.B.); (T.G.T.)
| | - Dmitry S. Baev
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Academician Lavrentyev Ave., 9, 630090 Novosibirsk, Russia; (M.E.M.); (S.A.B.); (T.V.R.); (D.S.B.); (T.G.T.)
| | - Tatyana G. Tolstikova
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Academician Lavrentyev Ave., 9, 630090 Novosibirsk, Russia; (M.E.M.); (S.A.B.); (T.V.R.); (D.S.B.); (T.G.T.)
- Department of Natural Sciences, Novosibirsk State University, Piragova Str., 1, 630090 Novosibirsk, Russia
| | - Elvira E. Shults
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of the Russian Academy of Sciences, Academician Lavrentyev Ave., 9, 630090 Novosibirsk, Russia; (M.E.M.); (S.A.B.); (T.V.R.); (D.S.B.); (T.G.T.)
- Correspondence: ; Tel.: +7-(383)-3308-533
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5
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Cao T, Yang Z, Sun Y, Zhao N, Lu S, Zhang J, Wang L. Lewis Base‐Catalyzed Cycloaddition of Heterocyclic Alkenes with 2,2,2‐Trifluorodiazoethane (CF
3
CHN
2
): Access to Trifluoromethylated Pyrazolines and Pyrazoles. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100521] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Tingting Cao
- Department of Traditional Chinese Medicine Jilin Agricultural University Changchun 130118 P. R. China
- Institute of Medicinal Plant Development Chinese Academy of Medical Science&Peking Union Medical College Beijing 100193 P. R. China
| | - Zhen Yang
- Department of Traditional Chinese Medicine Jilin Agricultural University Changchun 130118 P. R. China
| | - Yunfang Sun
- Institute of Medicinal Plant Development Chinese Academy of Medical Science&Peking Union Medical College Beijing 100193 P. R. China
| | - Nannan Zhao
- Institute of Medicinal Plant Development Chinese Academy of Medical Science&Peking Union Medical College Beijing 100193 P. R. China
| | - Shan Lu
- Institute of Medicinal Plant Development Chinese Academy of Medical Science&Peking Union Medical College Beijing 100193 P. R. China
| | - Jing Zhang
- Department of Traditional Chinese Medicine Jilin Agricultural University Changchun 130118 P. R. China
| | - Lei Wang
- Institute of Medicinal Plant Development Chinese Academy of Medical Science&Peking Union Medical College Beijing 100193 P. R. China
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6
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Synthesis and Pharmacological Characterization of 2-Aminoethyl Diphenylborinate (2-APB) Derivatives for Inhibition of Store-Operated Calcium Entry (SOCE) in MDA-MB-231 Breast Cancer Cells. Int J Mol Sci 2020; 21:ijms21165604. [PMID: 32764353 PMCID: PMC7460636 DOI: 10.3390/ijms21165604] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/31/2020] [Accepted: 08/03/2020] [Indexed: 12/15/2022] Open
Abstract
Calcium ions regulate a wide array of physiological functions including cell differentiation, proliferation, muscle contraction, neurotransmission, and fertilization. The endoplasmic reticulum (ER) is the major intracellular Ca2+ store and cellular events that induce ER store depletion (e.g., activation of inositol 1,4,5-triphosphate (IP3) receptors) trigger a refilling process known as store-operated calcium entry (SOCE). It requires the intricate interaction between the Ca2+ sensing stromal interaction molecules (STIM) located in the ER membrane and the channel forming Orai proteins in the plasma membrane (PM). The resulting active STIM/Orai complexes form highly selective Ca2+ channels that facilitate a measurable Ca2+ influx into the cytosol followed by successive refilling of the ER by the sarcoplasmic/endoplasmic reticulum calcium ATPase (SERCA). STIM and Orai have attracted significant therapeutic interest, as enhanced SOCE has been associated with several cancers, and mutations in STIM and Orai have been linked to immunodeficiency, autoimmune, and muscular diseases. 2-Aminoethyl diphenylborinate (2-APB) is a known modulator and depending on its concentration can inhibit or enhance SOCE. We have synthesized several novel derivatives of 2-APB, introducing halogen and other small substituents systematically on each position of one of the phenyl rings. Using a fluorometric imaging plate reader (FLIPR) Tetra-based calcium imaging assay we have studied how these structural changes of 2-APB affect the SOCE modulation activity at different compound concentrations in MDA-MB-231 breast cancer cells. We have discovered 2-APB derivatives that block SOCE at low concentrations, at which 2-APB usually enhances SOCE.
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7
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Azimi I, Stevenson RJ, Zhang X, Meizoso-Huesca A, Xin P, Johnson M, Flanagan JU, Chalmers SB, Yoast RE, Kapure JS, Ross BP, Vetter I, Ashton MR, Launikonis BS, Denny WA, Trebak M, Monteith GR. A new selective pharmacological enhancer of the Orai1 Ca 2+ channel reveals roles for Orai1 in smooth and skeletal muscle functions. ACS Pharmacol Transl Sci 2020; 3:135-147. [PMID: 32190822 DOI: 10.1021/acsptsci.9b00081] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Store operated calcium (Ca2+) entry is an important homeostatic mechanism in cells, whereby the release of Ca2+ from intracellular endoplasmic reticulum stores triggers the activation of a Ca2+ influx pathway. Mediated by Orai1, this Ca2+ influx has specific and essential roles in biological processes as diverse as lactation to immunity. Although pharmacological inhibitors of this Ca2+ influx mechanism have helped to define the role of store operated Ca2+ entry in many cellular events, the lack of isoform specific modulators and activators of Orai1 has limited our full understanding of these processes. Here we report the identification and synthesis of an Orai1 activity enhancer that concurrently potentiated Orai1 Ca2+ -dependent inactivation (CDI). This unique enhancer of Orai1 had only a modest effect on Orai3 with weak inhibitory effects at high concentrations in intact MCF-7 breast cancer cells. The Orai1 enhancer heightened vascular smooth muscle cell migration induced by platelet-derived growth factor and the unique store operated Ca2+ entry pathway present in skeletal muscle cells. These studies show that IA65 is an exemplar for the translation and development of Orai isoform selective agents. The ability of IA65 to activate CDI demonstrates that agents can be developed that can enhance Orai1-mediated Ca2+ influx but avoid the cytotoxicity associated with sustained Orai1 activation. IA65 and/or future analogues with similar Orai1 and CDI activating properties could be fine tuners of physiological processes important in specific disease states, such as cellular migration and immune cell function.
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Affiliation(s)
- Iman Azimi
- Division of Pharmacy, College of Health and Medicine, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Ralph J Stevenson
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Xuexin Zhang
- Department of Cellular and Molecular Physiology, and Pennsylvania State Cancer Institute. The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Aldo Meizoso-Huesca
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Ping Xin
- Department of Cellular and Molecular Physiology, and Pennsylvania State Cancer Institute. The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Martin Johnson
- Department of Cellular and Molecular Physiology, and Pennsylvania State Cancer Institute. The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Jack U Flanagan
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Silke B Chalmers
- School of Pharmacy, The University of Queensland, Brisbane 4072, Queensland, Australia
| | - Ryan E Yoast
- Department of Cellular and Molecular Physiology, and Pennsylvania State Cancer Institute. The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Jeevak S Kapure
- School of Pharmacy, The University of Queensland, Brisbane 4072, Queensland, Australia
| | - Benjamin P Ross
- School of Pharmacy, The University of Queensland, Brisbane 4072, Queensland, Australia
| | - Irina Vetter
- School of Pharmacy, The University of Queensland, Brisbane 4072, Queensland, Australia.,IMB Centre for Pain Research, Institute for Molecular Bioscience, University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Mark R Ashton
- UniQuest Pty Ltd, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Bradley S Launikonis
- School of Biomedical Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - William A Denny
- Auckland Cancer Society Research Centre, School of Medical Sciences, The University of Auckland, Auckland, 1142, New Zealand
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, and Pennsylvania State Cancer Institute. The Pennsylvania State University College of Medicine, Hershey, PA, 17033, USA
| | - Gregory R Monteith
- School of Pharmacy, The University of Queensland, Brisbane 4072, Queensland, Australia.,Mater Research Institute, Translational Research Institute, The University of Queensland, Brisbane 4102, Queensland, Australia
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8
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Sun T, Zhang J, Wu H, Hou R, Yuan Y, Chen B. Highly Regioselective Synthesis of 1-Acyl-5-hydroxypyrazolines or Synthesis of 3,5-Disubstituted Pyrazoles from (E)-β-Chlorovinyl Ketones and Benzohydrazides or Hydrazine Hydrate. HETEROCYCLES 2020. [DOI: 10.3987/com-20-14251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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9
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Azimi I, Bong AH, Poo GXH, Armitage K, Lok D, Roberts-Thomson SJ, Monteith GR. Pharmacological inhibition of store-operated calcium entry in MDA-MB-468 basal A breast cancer cells: consequences on calcium signalling, cell migration and proliferation. Cell Mol Life Sci 2018; 75:4525-4537. [PMID: 30105615 PMCID: PMC11105359 DOI: 10.1007/s00018-018-2904-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 08/08/2018] [Accepted: 08/09/2018] [Indexed: 12/14/2022]
Abstract
Store-operated Ca2+ entry is a pathway that is remodelled in a variety of cancers, and altered expression of the components of store-operated Ca2+ entry is a feature of breast cancer cells of the basal molecular subtype. Studies of store-operated Ca2+ entry in breast cancer cells have used non-specific pharmacological inhibitors, complete depletion of intracellular Ca2+ stores and have mostly focused on MDA-MB-231 cells (a basal B breast cancer cell line). These studies compared the effects of the selective store-operated Ca2+ entry inhibitors Synta66 and YM58483 (also known as BTP2) on global cytosolic free Ca2+ ([Ca2+]CYT) changes induced by physiological stimuli in a different breast cancer basal cell line model, MDA-MB-468. The effects of these agents on proliferation as well as serum and epidermal growth factor (EGF) induced migration were also assessed. Activation with the purinergic receptor activator adenosine triphosphate, produced a sustained increase in [Ca2+]CYT that was entirely dependent on store-operated Ca2+ entry. The protease activated receptor 2 activator, trypsin, and EGF also produced Ca2+ influx that was sensitive to both Synta66 and YM58483. Serum-activated migration of MDA-MB-468 breast cancer cells was sensitive to both store-operated Ca2+ inhibitors. However, proliferation and EGF-activated migration was differentially affected by Synta66 and YM58483. These studies highlight the need to define the exact mechanisms of action of different store-operated calcium entry inhibitors and the impact of such differences in the control of tumour progression pathways.
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Affiliation(s)
- Iman Azimi
- School of Pharmacy, The University of Queensland, Brisbane, QLD, Australia
- Mater Research Institute, Translational Research Institute, The University of Queensland, Brisbane, QLD, Australia
- Division of Pharmacy, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - Alice H Bong
- School of Pharmacy, The University of Queensland, Brisbane, QLD, Australia
| | - Greta X H Poo
- School of Pharmacy, The University of Queensland, Brisbane, QLD, Australia
| | - Kaela Armitage
- School of Pharmacy, The University of Queensland, Brisbane, QLD, Australia
| | - Dawn Lok
- School of Pharmacy, The University of Queensland, Brisbane, QLD, Australia
| | | | - Gregory R Monteith
- School of Pharmacy, The University of Queensland, Brisbane, QLD, Australia.
- Mater Research Institute, Translational Research Institute, The University of Queensland, Brisbane, QLD, Australia.
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