1
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Pang XY, Zhou H, Xie X, Jiang W, Yang Y, Sessler JL, Gong HY. 1,3,5-2,4,6-Functionalized Benzene Molecular Cage: An Environmentally Responsive Scaffold that Supports Hierarchical Superstructures. Angew Chem Int Ed Engl 2024; 63:e202407805. [PMID: 38870085 DOI: 10.1002/anie.202407805] [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: 04/24/2024] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 06/15/2024]
Abstract
New stimulus-responsive scaffolds are of interest as constituents of hierarchical supramolecular ensembles. 1,3,5-2,4,6-Functionalized, facially segregated benzene moieties have a time-honored role as building blocks for host molecules. However, their user as switchable motifs in the construction of multi-component supramolecular structures remains poorly explored. Here, we report a molecular cage 1, which consists of a bent anthracene dimer 3 paired with 1,3,5-tris(aminomethyl)-2,4,6-triethylbenzene 2. As the result of the pH-induced ababab↔bababa isomerization of the constituent-functionalized benzene units derived from 2, this cage can reversibly convert between an open state and a closed form, both in solution and in the solid state. Cage 1 was used to create stimuli-responsive hierarchical superstructures, namely Russian doll-like complexes with [K⊂18-crown-6⊂1]+ and [K⊂cryptand-222⊂1]+. The reversible assembly and disassembly of these superstructures could be induced by switching cage 1 from its open to closed form. The present study thus provides an unusual example where pH-triggered conformation motion within a cage-like scaffold is used to control the formation and disassociation of hierarchical ensembles.
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Affiliation(s)
- Xin-Yu Pang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Hang Zhou
- Department of Chemistry, The University of Hong Kong, Hong Kong, P. R. China
| | - Xiaojiang Xie
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Wei Jiang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Yinhua Yang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Jonathan L Sessler
- College of Chemistry, The University of Texas at Austin, Austin, Texas, 78712-1224, United States
| | - Han-Yuan Gong
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
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2
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Yuan L, Jiang P, Hu J, Zeng H, Huo Y, Li Z, Zeng H. A highly active and selective chalcogen bond-mediated perchlorate channel. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Mondal A, Malla JA, Paithankar H, Sharma S, Chugh J, Talukdar P. A Pyridyl-Linked Benzimidazolyl Tautomer Facilitates Prodigious H +/Cl - Symport through a Cooperative Protonation and Chloride Ion Recognition. Org Lett 2021; 23:6131-6136. [PMID: 34319120 DOI: 10.1021/acs.orglett.1c02235] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report two pyridyl-linked benzimidazolyl hydrazones as HCl cotransporters that are 5 and 2 times superior to prodigiosin, a natural product whose transport efficiency has never been routed by synthetic molecules. These hydrazones provide a suitable HCl binding site through a cooperative protonation and chloride ion recognition. HCl transport by the most active compound induces lysosome deacidification. Viability assays confirmed that the compounds induce cytotoxicity toward human breast cancer MCF-7 cells but are relatively nontoxic toward noncancerous HEK293T cells.
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Affiliation(s)
- Abhishek Mondal
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008 Maharashtra, India
| | - Javid Ahmad Malla
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008 Maharashtra, India
| | - Harshad Paithankar
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008 Maharashtra, India
| | - Shilpy Sharma
- Department of Biotechnology, Savitribai Phule Pune University, Pune, 411007 Maharashtra, India
| | - Jeetender Chugh
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008 Maharashtra, India.,Department of Biology, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008 Maharashtra, India
| | - Pinaki Talukdar
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, 411008 Maharashtra, India
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4
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Maslowska-Jarzyna K, Korczak ML, Chmielewski MJ. Boosting Anion Transport Activity of Diamidocarbazoles by Electron Withdrawing Substituents. Front Chem 2021; 9:690035. [PMID: 34095089 PMCID: PMC8172623 DOI: 10.3389/fchem.2021.690035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 04/26/2021] [Indexed: 12/17/2022] Open
Abstract
Artificial chloride transporters have been intensely investigated in view of their potential medicinal applications. Recently, we have established 1,8-diamidocarbazoles as a versatile platform for the development of active chloride carriers. In the present contribution, we investigate the influence of various electron-withdrawing substituents in positions 3 and 6 of the carbazole core on the chloride transport activity of these anionophores. Using lucigenin assay and large unilamellar vesicles as models, the 3,6-dicyano- and 3,6-dinitro- substituted receptors were found to be highly active and perfectly deliverable chloride transporters, with EC50,270s value as low as 22 nM for the Cl-/NO3 - exchange. Mechanistic studies revealed that diamidocarbazoles form 1:1 complexes with chloride in lipid bilayers and facilitate chloride/nitrate exchange by carrier mechanism. Furthermore, owing to its increased acidity, the 3,6-dinitro- substituted receptor acts as a pH-switchable transporter, with physiologically relevant apparent pKa of 6.4.
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Affiliation(s)
| | | | - Michał J. Chmielewski
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Warsaw, Poland
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5
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Hong XQ, Xing YY, Wang ZK, Mao QC, Chen WH. Curvature-regulated transmembrane anion transport by a trifluoromethylated bisbenzimidazole. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Pomorski R, García-Valverde M, Quesada R, Chmielewski MJ. Transmembrane anion transport promoted by thioamides. RSC Adv 2021; 11:12249-12253. [PMID: 35423746 PMCID: PMC8697034 DOI: 10.1039/d1ra01646f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 03/19/2021] [Indexed: 12/22/2022] Open
Abstract
Thioamide groups represent useful hydrogen-bonding motifs for the development of active transmembrane anion transporters. Using a 1,8-di(thioamido)carbazole scaffold the superior performance of thioamides compared with the parent amides has been demonstrated.
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Affiliation(s)
- Robert Pomorski
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw Żwirki i Wigury 101 02-089 Warszawa Poland
| | | | - Roberto Quesada
- Departamento de Química, Universidad de Burgos Burgos 09001 Spain
| | - Michał J Chmielewski
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw Żwirki i Wigury 101 02-089 Warszawa Poland
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7
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Xie H, Finnegan TJ, Liyana Gunawardana VW, Pavlović RZ, Moore CE, Badjić JD. A Hexapodal Capsule for the Recognition of Anions. J Am Chem Soc 2021; 143:3874-3880. [PMID: 33656878 DOI: 10.1021/jacs.0c12329] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Han Xie
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Tyler J. Finnegan
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Vageesha W. Liyana Gunawardana
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Radoslav Z. Pavlović
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Curtis E. Moore
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Jovica D. Badjić
- Department of Chemistry & Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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8
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Highly Efficient, Tripodal Ion-Pair Receptors for Switching Selectivity between Acetates and Sulfates Using Solid-Liquid and Liquid-Liquid Extractions. Int J Mol Sci 2020; 21:ijms21249465. [PMID: 33322738 PMCID: PMC7764408 DOI: 10.3390/ijms21249465] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 11/18/2022] Open
Abstract
A tripodal, squaramide-based ion-pair receptor 1 was synthesized in a modular fashion, and 1H NMR and UV-vis studies revealed its ability to interact more efficiently with anions with the assistance of cations. The reference tripodal anion receptor 2, lacking a crown ether unit, was found to lose the enhancement in anion binding induced by presence of cations. Besides the ability to bind anions in enhanced manner by the “single armed” ion-pair receptor 3, the lack of multiple and prearranged binding sites resulted in its much lower affinity towards anions than in the case of tripodal receptors. Unlike with receptors 2 or 3, the high affinity of 1 towards salts opens up the possibility of extracting extremely hydrophilic sulfate anions from aqueous to organic phase. The disparity in receptor 1 binding modes towards monovalent anions and divalent sulfates assures its selectivity towards sulfates over other lipophilic salts upon liquid–liquid extraction (LLE) and enables the Hofmeister bias to be overcome. By changing the extraction conditions from LLE to SLE (solid–liquid extraction), a switch of selectivity from sulfates to acetates was achieved. X-ray measurements support the ability of anion binding by cooperation of the arms of receptor 1 together with simultaneous binding of cations.
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9
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Saha A, Akhtar N, Kumar V, Kumar S, Srivastava HK, Kumar S, Manna D. pH-Regulated anion transport activities of bis(iminourea) derivatives across the cell and vesicle membrane. Org Biomol Chem 2020; 17:5779-5788. [PMID: 31135015 DOI: 10.1039/c9ob00650h] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recently, synthetic anion transporters have gained considerable attention because of their ability to disrupt cellular anion homeostasis and promote cell death. Herein, we report the development of bis(iminourea) derivatives as a new class of selective Cl- ion carrier. The bis(iminourea) derivatives were synthesized via a one-pot approach under mild reaction conditions. The presence of iminourea moieties suggests that the bis(iminourea) derivatives can be considered as unique guanidine mimics, indicating that the protonated framework could have much stronger anion recognition properties. The cooperative interactions of H+ and Cl- ions with these iminourea moieties results in the efficient transport of HCl across the lipid bilayer in an acidic environment. Under physiological conditions these compounds weakly transport Cl- ions via an antiport exchange mechanism. This pH-dependent gating/switching behavior (9-fold) within a narrow window could be due to the apparent pKa values (6.2-6.7) of the compounds within the lipid bilayer. The disruption of ionic homeostasis by the potent compounds was found to induce cell death.
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Affiliation(s)
- Abhishek Saha
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, India.
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10
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Li H, Valkenier H, Thorne AG, Dias CM, Cooper JA, Kieffer M, Busschaert N, Gale PA, Sheppard DN, Davis AP. Anion carriers as potential treatments for cystic fibrosis: transport in cystic fibrosis cells, and additivity to channel-targeting drugs. Chem Sci 2019; 10:9663-9672. [PMID: 32055336 PMCID: PMC6984391 DOI: 10.1039/c9sc04242c] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 09/09/2019] [Indexed: 12/12/2022] Open
Abstract
Defective anion transport is a hallmark of the genetic disease cystic fibrosis (CF). One approach to restore anion transport to CF cells utilises alternative pathways for transmembrane anion transport, including artificial anion carriers (anionophores). Here, we screened 22 anionophores for biological activity using fluorescence emission from the halide-sensitive yellow fluorescent protein. Three compounds possessed anion transport activity similar to or greater than that of a bis-(p-nitrophenyl)ureidodecalin previously shown to have promising biological activity. Anion transport by these anionophores was concentration-dependent and persistent. All four anionophores mediated anion transport in CF cells, and their activity was additive to rescue of the predominant disease-causing variant F508del-CFTR using the clinically-licensed drugs lumacaftor and ivacaftor. Toxicity was variable but minimal at the lower end. The results provide further evidence that anionophores, by themselves or together with other treatments that restore anion transport, offer a potential therapeutic strategy for CF.
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Affiliation(s)
- Hongyu Li
- School of Physiology , Pharmacology and Neuroscience , University of Bristol , Biomedical Sciences Building, University Walk , Bristol BS8 1TD , UK .
| | - Hennie Valkenier
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
| | - Abigail G Thorne
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
| | - Christopher M Dias
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
| | - James A Cooper
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
| | - Marion Kieffer
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
| | | | - Philip A Gale
- Chemistry , University of Southampton , Southampton SO17 1BJ , UK .
| | - David N Sheppard
- School of Physiology , Pharmacology and Neuroscience , University of Bristol , Biomedical Sciences Building, University Walk , Bristol BS8 1TD , UK .
| | - Anthony P Davis
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , UK .
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11
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Fu CY, Li YQ, Chen L, Wang YG, Lin LR. Anion recognition in aqueous solution by cyclic dinuclear square cage-shaped coordination complexes. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.118961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Grauwels G, Valkenier H, Davis AP, Jabin I, Bartik K. Repositioning Chloride Transmembrane Transporters: Transport of Organic Ion Pairs. Angew Chem Int Ed Engl 2019; 58:6921-6925. [DOI: 10.1002/anie.201900818] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 04/12/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Glenn Grauwels
- Université libre de Bruxelles (ULB)Engineering Molecular NanoSystems Avenue F. Roosevelt 50 1050 Brussels Belgium
| | - Hennie Valkenier
- Université libre de Bruxelles (ULB)Engineering Molecular NanoSystems Avenue F. Roosevelt 50 1050 Brussels Belgium
| | - Anthony P. Davis
- University of BristolSchool of Chemistry Cantock's Close Bristol BS8 1TS UK
| | - Ivan Jabin
- Université libre de Bruxelles (ULB)Laboratoire de Chimie Organique Avenue F. Roosevelt 50 1050 Brussels Belgium
| | - Kristin Bartik
- Université libre de Bruxelles (ULB)Engineering Molecular NanoSystems Avenue F. Roosevelt 50 1050 Brussels Belgium
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13
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Synthesis and biological evaluation of aza-crown ether–squaramide conjugates as anion/cation symporters. Future Med Chem 2019; 11:1091-1106. [DOI: 10.4155/fmc-2018-0595] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Aim: Anion/cation symport across cellular membranes may lead to cell apoptosis and be developed as a strategy for new anticancer drug discovery. Methodology: Four aza-crown ether–squaramide conjugates were synthesized and characterized. Their anion recognition, anion/cation symport, cytotoxicity and probable mechanism of action were investigated in details. Conclusion: These conjugates are able to form ion-pairing complexes with chloride anions and facilitate the transmembrane transport of anions via an anion/cation symport process. They can disrupt the cellular homeostasis of chloride anions and sodium cations and induce the basification of acidic organelles in live cells. These conjugates exhibit moderate cytotoxicity toward the tested cancer cells and trigger cell apoptosis by mediating the influx of chloride anions and sodium cations into live cells.
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14
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Grauwels G, Valkenier H, Davis AP, Jabin I, Bartik K. Repositioning Chloride Transmembrane Transporters: Transport of Organic Ion Pairs. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900818] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Glenn Grauwels
- Université libre de Bruxelles (ULB)Engineering Molecular NanoSystems Avenue F. Roosevelt 50 1050 Brussels Belgium
| | - Hennie Valkenier
- Université libre de Bruxelles (ULB)Engineering Molecular NanoSystems Avenue F. Roosevelt 50 1050 Brussels Belgium
| | - Anthony P. Davis
- University of BristolSchool of Chemistry Cantock's Close Bristol BS8 1TS UK
| | - Ivan Jabin
- Université libre de Bruxelles (ULB)Laboratoire de Chimie Organique Avenue F. Roosevelt 50 1050 Brussels Belgium
| | - Kristin Bartik
- Université libre de Bruxelles (ULB)Engineering Molecular NanoSystems Avenue F. Roosevelt 50 1050 Brussels Belgium
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15
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Valkenier H, Akrawi O, Jurček P, Sleziaková K, Lízal T, Bartik K, Šindelář V. Fluorinated Bambusurils as Highly Effective and Selective Transmembrane Cl−/HCO3− Antiporters. Chem 2019. [DOI: 10.1016/j.chempr.2018.11.008] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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16
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Akhtar N, Pradhan N, Saha A, Kumar V, Biswas O, Dey S, Shah M, Kumar S, Manna D. Tuning the solubility of ionophores: glutathione-mediated transport of chloride ions across hydrophobic membranes. Chem Commun (Camb) 2019; 55:8482-8485. [DOI: 10.1039/c9cc04518j] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Glutathione-mediated transformation of a water-soluble proanionophore to an active anionophore allows controlled transport of Cl− ion across hydrophobic lipid bilayers.
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Affiliation(s)
- Nasim Akhtar
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam-781039
- India
| | - Nirmalya Pradhan
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam-781039
- India
| | - Abhishek Saha
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam-781039
- India
| | - Vishnu Kumar
- Department of Bioscience and Bioengineering
- Indian Institute of Technology Guwahati
- Assam-781039
- India
| | - Oindrila Biswas
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam-781039
- India
| | - Subhasis Dey
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam-781039
- India
| | - Manisha Shah
- Department of Bioscience and Bioengineering
- Indian Institute of Technology Guwahati
- Assam-781039
- India
| | - Sachin Kumar
- Department of Bioscience and Bioengineering
- Indian Institute of Technology Guwahati
- Assam-781039
- India
| | - Debasis Manna
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam-781039
- India
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17
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Akhtar N, Saha A, Kumar V, Pradhan N, Panda S, Morla S, Kumar S, Manna D. Diphenylethylenediamine-Based Potent Anionophores: Transmembrane Chloride Ion Transport and Apoptosis Inducing Activities. ACS APPLIED MATERIALS & INTERFACES 2018; 10:33803-33813. [PMID: 30221925 DOI: 10.1021/acsami.8b06664] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Synthetic anion transporters have been recognized as one of the potential therapeutic agents for the treatment of diseases including cystic fibrosis, myotonia, and epilepsy that originate due to the malfunctioning of natural Cl- ion transport systems. Recent studies showed that the synthetic Cl- ion transporters can also disrupt cellular ion-homeostasis and induce apoptosis in cancer cell lines, leading to a revived attention for synthetic Cl- ion transporters. Herein, we report the development of conformationally controlled 1,2-diphenylethylenediamine-based bis(thiourea) derivatives as a new class of selective Cl- ion carrier. The strong Cl- ion binding properties ( Kd = 3.87-6.66 mM) of the bis(thiourea) derivatives of diamine-based compounds correlate well with their transmembrane anion transport activities (EC50 = 2.09-4.15 nM). The transport of Cl- ions via Cl-/NO3- antiport mechanism was confirmed for the most active molecule. Perturbation of Cl- ion homeostasis by this anion carrier induces cell death by promoting the caspase-mediated intrinsic pathway of apoptosis.
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18
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Synthesis, anionophoric activity and apoptosis-inducing bioactivity of benzimidazolyl-based transmembrane anion transporters. Eur J Med Chem 2018; 152:115-125. [DOI: 10.1016/j.ejmech.2018.04.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/16/2018] [Accepted: 04/18/2018] [Indexed: 11/18/2022]
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19
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Dias CM, Valkenier H, Davis AP. Anthracene Bisureas as Powerful and Accessible Anion Carriers. Chemistry 2018; 24:6262-6268. [PMID: 29493830 PMCID: PMC5947650 DOI: 10.1002/chem.201800508] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Indexed: 01/07/2023]
Abstract
Synthetic anion carriers (anionophores) have potential as biomedical research tools and as treatments for conditions arising from defective natural transport systems (notably cystic fibrosis). Highly active anionophores that are readily accessible and easily deliverable are especially valuable. Previous work has resulted in steroid and trans-decalin based anionophores with exceptional activity for chloride/nitrate exchange in vesicles, but poor accessibility and deliverability. This work shows that anthracene 1,8-bisureas can fulfil all three criteria. In particular, a bis-nitrophenyl derivative is prepared in two steps from commercial starting materials, yet shows comparable transport activity to the best currently known. Moreover, unlike earlier highly active systems, it does not need to be preincorporated in test vesicles but can be introduced subsequent to vesicle formation. This transporter also shows the ability to transfer between vesicles, and is therefore uniquely effective for anion transport at low transporter loadings. The results suggest that anthracene bisureas are promising candidates for application in biological research and medicine.
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Affiliation(s)
| | - Hennie Valkenier
- Université Libre de BruxellesAvenue F.D. Roosevelt 50, CP165/641050BrusselsBelgium
| | - Anthony P. Davis
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
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20
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Dias CM, Li H, Valkenier H, Karagiannidis LE, Gale PA, Sheppard DN, Davis AP. Anion transport by ortho-phenylene bis-ureas across cell and vesicle membranes. Org Biomol Chem 2018; 16:1083-1087. [DOI: 10.1039/c7ob02787g] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
These simple bis-ureas are found to be powerful anionophores in synthetic vesicles, and also in a live cell assay employing yellow fluorescent protein.
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Affiliation(s)
| | - Hongyu Li
- School of Physiology
- Pharmacology and Neuroscience
- University of Bristol
- Bristol
- UK
| | - Hennie Valkenier
- Engineering of Molecular NanoSystems
- Ecole Polytechnique de Bruxelles
- Université Libre de Bruxelles
- B-1050 Brussels
- Belgium
| | | | | | - David N. Sheppard
- School of Physiology
- Pharmacology and Neuroscience
- University of Bristol
- Bristol
- UK
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21
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Li Z, Yu XH, Chen Y, Yuan DQ, Chen WH. Synthesis, Anion Recognition, and Transmembrane Anionophoric Activity of Tripodal Diaminocholoyl Conjugates. J Org Chem 2017; 82:13368-13375. [DOI: 10.1021/acs.joc.7b02447] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Zhi Li
- Guangdong
Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical
Sciences, Southern Medical University, Guangzhou 510515, P.R. China
| | - Xi-Hui Yu
- Guangdong
Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical
Sciences, Southern Medical University, Guangzhou 510515, P.R. China
| | - Yun Chen
- Guangdong
Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical
Sciences, Southern Medical University, Guangzhou 510515, P.R. China
| | - De-Qi Yuan
- Faculty
of Pharmaceutical Sciences, Kobe Gakuin University, Minatojima 1-1-3, Chuo-ku, Kobe 650-8586, Japan
| | - Wen-Hua Chen
- Guangdong
Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical
Sciences, Southern Medical University, Guangzhou 510515, P.R. China
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22
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Jowett LA, Howe ENW, Soto-Cerrato V, Van Rossom W, Pérez-Tomás R, Gale PA. Indole-based perenosins as highly potent HCl transporters and potential anti-cancer agents. Sci Rep 2017; 7:9397. [PMID: 28839192 PMCID: PMC5570892 DOI: 10.1038/s41598-017-09645-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 07/24/2017] [Indexed: 11/19/2022] Open
Abstract
Prodigiosin is one of the most potent anion transporters in lipid bilayer membranes reported to date. Inspired by the structure of this natural product, we have recently designed and synthesised a new class of H+/Cl− cotransporters named ‘perenosins’. Here we report a new library of indole-based perenosins and their anion transport properties. The new transporters demonstrated superior transmembrane transport efficiency when compared to other indole-based transporters, due to favourable encapsulating effects from the substituents on the perenosin backbone. Anion transport assays were used to determine the mechanism of chloride transport revealing that the compounds function as ‘strict’ HCl cotransporters. Cell viability studies showed that some compounds specifically trigger late-onset cell death after 72 h with a unique correlation to the position of alkyl chains on the perenosins. Further investigations of cell death mechanism showed a mixture of cell cycle arrest and apoptosis was responsible for the observed decrease in cell viability.
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Affiliation(s)
- Laura A Jowett
- School of Chemistry (F11), The University of Sydney, 2006, Sydney, NSW, Australia
| | - Ethan N W Howe
- School of Chemistry (F11), The University of Sydney, 2006, Sydney, NSW, Australia
| | - Vanessa Soto-Cerrato
- Department of Pathology and Experimental Therapeutics, Cancer Cell Biology Research Group, University of Barcelona, Barcelona, Spain
| | - Wim Van Rossom
- Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
| | - Ricardo Pérez-Tomás
- Department of Pathology and Experimental Therapeutics, Cancer Cell Biology Research Group, University of Barcelona, Barcelona, Spain
| | - Philip A Gale
- School of Chemistry (F11), The University of Sydney, 2006, Sydney, NSW, Australia.
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23
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Cai XJ, Li Z, Chen WH. Tripodal squaramide conjugates as highly effective transmembrane anion transporters. Bioorg Med Chem Lett 2017; 27:1999-2002. [DOI: 10.1016/j.bmcl.2017.03.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 02/18/2017] [Accepted: 03/06/2017] [Indexed: 11/17/2022]
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24
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Ozay O, Yildirim M, Ozay H. Synthesis, structural characterization, and anion interactions of new triazole-linked urea derivative fully substituted cyclotriphosphazene compounds. PHOSPHORUS SULFUR 2017. [DOI: 10.1080/10426507.2016.1237950] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ozgur Ozay
- Department of Chemistry and Chemical Processing Technologies, Lapseki Vocational School, Canakkale Onsekiz Mart University, Canakkale/Lapseki, Turkey
| | - Mehmet Yildirim
- Department of Materials Science and Engineering, Faculty of Engineering, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Hava Ozay
- Department of Chemistry, Inorganic Chemistry Laboratory, Faculty of Science and Arts, Canakkale Onsekiz Mart University, Canakkale, Turkey
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25
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26
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Peng CC, Zhang MJ, Sun XX, Cai XJ, Chen Y, Chen WH. Highly efficient anion transport mediated by 1,3-bis(benzimidazol-2-yl)benzene derivatives bearing electron-withdrawing substituents. Org Biomol Chem 2016; 14:8232-6. [PMID: 27527581 DOI: 10.1039/c6ob01461e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1,3-Bis(benzimidazol-2-yl)benzene exhibits potent anionophoric activity through a process of anion exchange with a minor level of proton/anion symport. Modification of 1,3-bis(benzimidazol-2-yl)benzene with strong electron-withdrawing substituents, such as trifluoromethyl and nitro groups, leads to up to 789-fold increase in the activity. The benzimidazolyl-NH fragments, the relative position and the number of the benzimidazolyl groups on the central phenyl scaffold play an essential role in the transport.
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Affiliation(s)
- Chen-Chen Peng
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, P. R. China.
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27
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2,6-Bis(benzimidazol-2-yl)pyridine as a potent transmembrane anion transporter. Bioorg Med Chem Lett 2016; 26:2442-2445. [DOI: 10.1016/j.bmcl.2016.03.114] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 03/28/2016] [Accepted: 03/31/2016] [Indexed: 12/31/2022]
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28
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Dey SK, Basu A, Chutia R, Das G. Anion coordinated capsules and pseudocapsules of tripodal amide, urea and thiourea scaffolds. RSC Adv 2016. [DOI: 10.1039/c6ra00268d] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review provides a detailed and comparative account of the solid- and solution-states anion (halides and oxyanions) binding affinities of hydrogen bonding tripodal scaffolds.
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Affiliation(s)
| | - Arghya Basu
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Romen Chutia
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Gopal Das
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
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29
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Abstract
Herein, we report the synthesis of an umbrella thread and its covalent dimer and their transmembrane transport properties under physiological conditions.
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Affiliation(s)
- Julie Kempf
- Département de Chimie
- Université de Montréal
- Montréal
- Canada
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30
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Li Z, Deng LQ, Chen JX, Zhou CQ, Chen WH. Does lipophilicity affect the effectiveness of a transmembrane anion transporter? Insight from squaramido-functionalized bis(choloyl) conjugates. Org Biomol Chem 2015; 13:11761-9. [DOI: 10.1039/c5ob01920f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Lipophilicity was found to have little effect on the effectiveness of squaramido-functionalized bis(choloyl) conjugates.
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Affiliation(s)
- Zhi Li
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515
- P. R. China
| | - Li-Qun Deng
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515
- P. R. China
| | - Jin-Xiang Chen
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515
- P. R. China
| | - Chun-Qiong Zhou
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515
- P. R. China
| | - Wen-Hua Chen
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515
- P. R. China
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