1
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Niu T, Li Z, Huang Y, Ye Y, Liu Y, Ye Z, Jiang L, He X, Wang L, Li J. LFA-1 knockout inhibited the tumor growth and is correlated with treg cells. Cell Commun Signal 2023; 21:233. [PMID: 37723552 PMCID: PMC10506322 DOI: 10.1186/s12964-023-01238-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 07/19/2023] [Indexed: 09/20/2023] Open
Abstract
Cancer immunotherapy has been proven to be clinically effective in multiple types of cancers. Lymphocyte function-associated antigen 1 (LFA-1), a member of the integrin family of adhesion molecules, is expressed mainly on αβ T cells. LFA-1 is associated with tumor immune responses, but its exact mechanism remains unknown. Here, two kinds of mice tumor model of LFA-1 knockout (LFA-1-/-) mice bearing subcutaneous tumor and Apc Min/+;LFA-1-/- mice were used to confirm that LFA-1 knockout resulted in inhibition of tumor growth. Furthermore, it also demonstrated that the numbers of regulatory T cells (Treg cells) in the spleen, blood, mesenteric lymph nodes were decreased in LFA-1-/- mice, and the numbers of Treg cells in mesenteric lymph nodes were also decreased in Apc Min/+;LFA-1-/- mice compared with Apc Min/+ mice. LFA-1 inhibitor (BIRT377) was administered to subcutaneous tumor-bearing LFA-1+/+ mice, and the results showed that the tumor growth was inhibited and the number of Treg cells was reduced. The analysis of TIMER tumor database indicated that LFA-1 expression is positively associated with Treg cells and TNM stage. Conclusively, this suggests that LFA-1 knockout would inhibit tumor growth and is correlated with Treg cells. LFA-1 may be one potential target for cancer immunotherapy. Video Abstract.
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Affiliation(s)
- Ting Niu
- Institute of Basic Medical Sciences, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, No. 280 Waihuan Rd. E, Higher Education Mega Center, 510006, Guangzhou, China
| | - Zhengyang Li
- Institute of Basic Medical Sciences, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, No. 280 Waihuan Rd. E, Higher Education Mega Center, 510006, Guangzhou, China
| | - Yiting Huang
- Institute of Basic Medical Sciences, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, No. 280 Waihuan Rd. E, Higher Education Mega Center, 510006, Guangzhou, China
| | - Yuxiang Ye
- Institute of Basic Medical Sciences, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, No. 280 Waihuan Rd. E, Higher Education Mega Center, 510006, Guangzhou, China
| | - Yilong Liu
- Institute of Basic Medical Sciences, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, No. 280 Waihuan Rd. E, Higher Education Mega Center, 510006, Guangzhou, China
| | - Zhijin Ye
- Institute of Basic Medical Sciences, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, No. 280 Waihuan Rd. E, Higher Education Mega Center, 510006, Guangzhou, China
| | - Lingbi Jiang
- Institute of Basic Medical Sciences, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, No. 280 Waihuan Rd. E, Higher Education Mega Center, 510006, Guangzhou, China
| | - Xiaodong He
- Institute of Basic Medical Sciences, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, No. 280 Waihuan Rd. E, Higher Education Mega Center, 510006, Guangzhou, China
| | - Lijing Wang
- Institute of Basic Medical Sciences, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, No. 280 Waihuan Rd. E, Higher Education Mega Center, 510006, Guangzhou, China.
| | - Jiangchao Li
- Institute of Basic Medical Sciences, School of Life Sciences and Biopharmaceuticals, Guangdong Pharmaceutical University, No. 280 Waihuan Rd. E, Higher Education Mega Center, 510006, Guangzhou, China.
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2
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Abstract
A simple, fast and cost-effective three-step synthesis of 1-methyl-8-phenyl-1,3-diazaspiro[4.5]decane-2,4-dione has been developed. The reactions described herein proceed readily, with high yields and no further purification. Therefore, the proposed method, with an overall yield of 60%, offers a facile pathway to the synthesis of N-1 monosubstituted spiro carbocyclic imidazolidine-2,4-diones (hydantoins), which constitute a privileged class of heterocyclic scaffolds with pharmacological interest.
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3
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Kotha S, Gupta NK, Aswar VR. Multicomponent Approach to Hydantoins and Thiohydantoins Involving a Deep Eutectic Solvent. Chem Asian J 2019; 14:3188-3197. [DOI: 10.1002/asia.201900744] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/31/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Sambasivarao Kotha
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400 076 India
| | - Naveen K. Gupta
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400 076 India
| | - Vikas R. Aswar
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400 076 India
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4
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Ni D, Lu S, Zhang J. Emerging roles of allosteric modulators in the regulation of protein-protein interactions (PPIs): A new paradigm for PPI drug discovery. Med Res Rev 2019; 39:2314-2342. [PMID: 30957264 DOI: 10.1002/med.21585] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 03/12/2019] [Accepted: 03/24/2019] [Indexed: 12/26/2022]
Abstract
Protein-protein interactions (PPIs) are closely implicated in various types of cellular activities and are thus pivotal to health and disease states. Given their fundamental roles in a wide range of biological processes, the modulation of PPIs has enormous potential in drug discovery. However, owing to the general properties of large, flat, and featureless interfaces of PPIs, previous attempts have demonstrated that the generation of therapeutic agents targeting PPI interfaces is challenging, rendering them almost "undruggable" for decades. To date, rapid progress in chemical and structural biology techniques has promoted the exploitation of allostery as a novel approach in drug discovery. By attaching to allosteric sites that are topologically and spatially distinct from PPI interfaces, allosteric modulators can achieve improved physiochemical properties. Thus, allosteric modulators may represent an alternative strategy to target intractable PPIs and have attracted intense pharmaceutical interest. In this review, we first briefly introduce the characteristics of PPIs and then present different approaches for investigating PPIs, as well as the latest methods for modulating PPIs. Importantly, we comprehensively review the recent progress in the development of allosteric modulators to inhibit or stabilize PPIs. Finally, we conclude with future perspectives on the discovery of allosteric PPI modulators, especially the application of computational methods to aid in allosteric PPI drug discovery.
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Affiliation(s)
- Duan Ni
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Clinical and Fundamental Research Center, Renji Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Shaoyong Lu
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Clinical and Fundamental Research Center, Renji Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.,Medicinal Bioinformatics Center, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
| | - Jian Zhang
- Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Clinical and Fundamental Research Center, Renji Hospital, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.,Medicinal Bioinformatics Center, Shanghai Jiao-Tong University School of Medicine, Shanghai, China.,Center for Single-Cell Omics, Shanghai Jiao-Tong University School of Medicine, Shanghai, China
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5
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Recent applications of hydantoin and thiohydantoin in medicinal chemistry. Eur J Med Chem 2019; 164:517-545. [DOI: 10.1016/j.ejmech.2018.12.066] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 12/24/2018] [Accepted: 12/25/2018] [Indexed: 12/17/2022]
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6
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Saigal S, Khan S, Rahman H, Shafiullah S, Khan MM. NitroketeneN,S-acetals: synergistic building blocks for the synthesis of heterocycles. RSC Adv 2019; 9:14477-14502. [PMID: 35519324 PMCID: PMC9064196 DOI: 10.1039/c9ra00630c] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 04/17/2019] [Indexed: 01/28/2023] Open
Abstract
The development of novel heterocyclic compounds from simple and easily accessible starting components is of significant importance in medicinal chemistry. Due to the presence of active chromophores and potent pharmacological activities, nitroketene N,S-acetals have emerged as a fascinating building block in organic synthesis. The synergistic skeleton of these acetals and the presence of electron-donating as well as electron-withdrawing groups lead to the generation of distinctive structural features and are highly useful for building diverse heterocyclic rings. This review highlights the preparation of different nitroketene N,S-acetals and their applications in the synthesis of diverse heterocyclic compounds. This review highlights the synthesis of several kinds of nitroketene N,S-acetals and their applications in the synthesis of different kinds of heterocyclic compounds.![]()
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Affiliation(s)
- Saigal Saigal
- Department of Chemistry
- Aligarh Muslim University
- Aligarh
- India
| | - Sarfaraz Khan
- Department of Chemistry
- Aligarh Muslim University
- Aligarh
- India
| | - Habibur Rahman
- Department of General Studies
- Jubail Industrial College
- Jubail
- Saudi Arabia
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7
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Xu S, Zhou GC. A Convenient Synthesis of a Lymphocyte Function-Associated Antigen-1 (LFA-1) Antagonist of ‘Compound 4’. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15272594754006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The lymphocyte function-associated antigen-1 (LFA-1) antagonist of ‘Compound 4’ was synthesised by a convenient route using cheap, commercially available starting materials and catalysts under mild reaction conditions and by easily handled reactions. The total yield in the preparation of ‘Compound 4’ was more than 38% via Sonogashira coupling of an iodide and an alkyne, reduction of the alkyne catalysed by Raney nickel and later steps involving hydrolysis of an ester, condensation of an acid and an amine and a final hydrolysis of an ester.
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Affiliation(s)
- Sheng Xu
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P.R. China
| | - Guo-Chun Zhou
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, P.R. China
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8
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Song J, Zhang ZJ, Chen SS, Fan T, Gong LZ. Lewis Base/Copper Cooperatively Catalyzed Asymmetric α-Amination of Esters with Diaziridinone. J Am Chem Soc 2018; 140:3177-3180. [DOI: 10.1021/jacs.7b12628] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jin Song
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, and Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei 230026, China
| | - Zi-Jing Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, and Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei 230026, China
| | - Shu-Sen Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, and Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei 230026, China
| | - Tao Fan
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, and Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei 230026, China
| | - Liu-Zhu Gong
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemistry, and Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei 230026, China
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9
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Amaike K, Tamura T, Hamachi I. Recognition-driven chemical labeling of endogenous proteins in multi-molecular crowding in live cells. Chem Commun (Camb) 2017; 53:11972-11983. [PMID: 29026906 DOI: 10.1039/c7cc07177a] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Endogenous protein labeling is one of the most invaluable methods for studying the bona fide functions of proteins in live cells. However, multi-molecular crowding conditions, such as those that occur in live cells, hamper the highly selective chemical labeling of a protein of interest (POI). We herein describe how the efficient coupling of molecular recognition with a chemical reaction is crucial for selective protein labeling. Recognition-driven protein labeling is carried out by a synthetic labeling reagent containing a protein (recognition) ligand, a reporter tag, and a reactive moiety. The molecular recognition of a POI can be used to greatly enhance the reaction kinetics and protein selectivity, even under live cell conditions. In this review, we also briefly discuss how such selective chemical labeling of an endogenous protein can have a variety of applications at the interface of chemistry and biology.
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Affiliation(s)
- Kazuma Amaike
- Graduate School of Engineering, Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Tomonori Tamura
- Graduate School of Engineering, Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Itaru Hamachi
- Graduate School of Engineering, Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan. and Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency, 5 Sanbancho, Chiyoda-ku, Tokyo 102-0075, Japan
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10
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Mas-Roselló J, Hachisu S, Clayden J. Geometry-Retentive C-Alkenylation of Lithiated α-Aminonitriles: Quaternary α-Alkenyl Amino Acids and Hydantoins. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704908] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Josep Mas-Roselló
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Shuji Hachisu
- Syngenta Agrochemicals; Jealotts Hill Research Station Bracknell, Berks RG42 6EY UK
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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11
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Mas-Roselló J, Hachisu S, Clayden J. Geometry-Retentive C-Alkenylation of Lithiated α-Aminonitriles: Quaternary α-Alkenyl Amino Acids and Hydantoins. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201704908] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Josep Mas-Roselló
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Shuji Hachisu
- Syngenta Agrochemicals; Jealotts Hill Research Station Bracknell, Berks RG42 6EY UK
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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12
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13
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Lazić AM, Božić BĐ, Vitnik VD, Vitnik ŽJ, Rogan JR, Radovanović LD, Valentić NV, Ušćumlić GS. Structure-property relationship of 3-(4-substituted benzyl)-1,3-diazaspiro[4.4]nonane-2,4-diones as new potentional anticonvulsant agents. An experimental and theoretical study. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.07.069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Huang A, Wo K, Pierson A, Lee SYC, Yang E, Johnson C. 5-Hydroxyl Hydantoins via One-Pot Microwave-Assisted Air Oxidation of Ugi Products. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2454] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Adrian Huang
- Department of Chemistry; Wellesley College; 106 Central Street Wellesley MA 02481 USA
| | - Kellie Wo
- Department of Chemistry; Wellesley College; 106 Central Street Wellesley MA 02481 USA
| | - Allene Pierson
- Department of Chemistry; Wellesley College; 106 Central Street Wellesley MA 02481 USA
| | - So Yeun Christine Lee
- Department of Chemistry; Wellesley College; 106 Central Street Wellesley MA 02481 USA
| | - Erin Yang
- Department of Chemistry; Wellesley College; 106 Central Street Wellesley MA 02481 USA
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15
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Abstract
Modulation of protein-protein interactions (PPIs) is becoming increasingly important in drug discovery and chemical biology. While a few years ago this 'target class' was deemed to be largely undruggable an impressing number of publications and success stories now show that targeting PPIs with small, drug-like molecules indeed is a feasible approach. Here, we summarize the current state of small-molecule inhibition and stabilization of PPIs and review the active molecules from a structural and medicinal chemistry angle, especially focusing on the key examples of iNOS, LFA-1 and 14-3-3.
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16
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Fernández-Nieto F, Mas Roselló J, Lenoir S, Hardy S, Clayden J. Palladium Catalyzed C-Arylation of Amino Acid Derived Hydantoins. Org Lett 2015. [DOI: 10.1021/acs.orglett.5b01803] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | - Josep Mas Roselló
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Simone Lenoir
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Simon Hardy
- Syngenta
Ltd.,
Jealott’s Hill Research Centre, Bracknell,
Berkshire, RG42 6EY, U.K
| | - Jonathan Clayden
- School
of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
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17
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Atkinson RC, Fernández-Nieto F, Mas Roselló J, Clayden J. Pseudoephedrine-Directed Asymmetric α-Arylation of α-Amino Acid Derivatives. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502569] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Atkinson RC, Fernández-Nieto F, Mas Roselló J, Clayden J. Pseudoephedrine-Directed Asymmetric α-Arylation of α-Amino Acid Derivatives. Angew Chem Int Ed Engl 2015; 54:8961-5. [DOI: 10.1002/anie.201502569] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 05/06/2015] [Indexed: 11/10/2022]
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19
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20
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Kukic P, Alvin Leung HT, Bemporad F, Aprile FA, Kumita JR, De Simone A, Camilloni C, Vendruscolo M. Structure and dynamics of the integrin LFA-1 I-domain in the inactive state underlie its inside-out/outside-in signaling and allosteric mechanisms. Structure 2015; 23:745-53. [PMID: 25773142 PMCID: PMC4396694 DOI: 10.1016/j.str.2014.12.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 12/04/2014] [Accepted: 12/06/2014] [Indexed: 01/13/2023]
Abstract
Lymphocyte function-associated antigen 1 (LFA-1) is an integrin that transmits information in two directions across the plasma membrane of leukocytes, in so-called outside-in and inside-out signaling mechanisms. To investigate the structural basis of these mechanisms, we studied the conformational space of the apo I-domain using replica-averaged metadynamics simulations in combination with nuclear magnetic resonance chemical shifts. We thus obtained a free energy landscape that reveals the existence of three conformational substates of this domain. The three substates include conformations similar to existing crystallographic structures of the low-affinity I-domain, the inactive I-domain with an allosteric antagonist inhibitor bound underneath α helix 7, and an intermediate affinity state of the I-domain. The multiple substates were validated with residual dipolar coupling measurements. These results suggest that the presence of three substates in the apo I-domain enables the precise regulation of the binding process that is essential for the physiological function of LFA-1.
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Affiliation(s)
- Predrag Kukic
- Department of Chemistry, Lensfield Road, University of Cambridge, Cambridge CB2 1EW, UK
| | - Hoi Tik Alvin Leung
- Department of Chemistry, Lensfield Road, University of Cambridge, Cambridge CB2 1EW, UK; Biozentrum, University of Basel, Klingelbergstrasse 50/70, Basel 4056, Switzerland
| | - Francesco Bemporad
- Department of Chemistry, Lensfield Road, University of Cambridge, Cambridge CB2 1EW, UK; Dipartimento di Scienze Biomediche Sperimentali e Cliniche, Università degli Studi di Firenze, Viale G. B. Morgagni 50, 50134, Firenze, Italy
| | - Francesco A Aprile
- Department of Chemistry, Lensfield Road, University of Cambridge, Cambridge CB2 1EW, UK
| | - Janet R Kumita
- Department of Chemistry, Lensfield Road, University of Cambridge, Cambridge CB2 1EW, UK
| | - Alfonso De Simone
- Division of Molecular Biosciences, Imperial College London, London SW7 2AZ, UK
| | - Carlo Camilloni
- Department of Chemistry, Lensfield Road, University of Cambridge, Cambridge CB2 1EW, UK
| | - Michele Vendruscolo
- Department of Chemistry, Lensfield Road, University of Cambridge, Cambridge CB2 1EW, UK.
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21
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Kanemitsu T, Furukoshi S, Miyazaki M, Nagata K, Itoh T. Application of asymmetric alkylation of malonic diester with phase-transfer catalysis: synthesis of LFA-1 antagonist BIRT-377. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.01.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Kollmann CS, Bai X, Tsai CH, Yang H, Lind KE, Skinner SR, Zhu Z, Israel DI, Cuozzo JW, Morgan BA, Yuki K, Xie C, Springer TA, Shimaoka M, Evindar G. Application of encoded library technology (ELT) to a protein–protein interaction target: Discovery of a potent class of integrin lymphocyte function-associated antigen 1 (LFA-1) antagonists. Bioorg Med Chem 2014; 22:2353-65. [DOI: 10.1016/j.bmc.2014.01.050] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 01/15/2014] [Accepted: 01/24/2014] [Indexed: 11/16/2022]
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23
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Sridevi C, Velraj G. Molecular structure, tautomeric stability, protonation and deprotonation effects, vibrational, NMR and NBO analyses of 2,4-Dioxoimidazolidine-5-acetic acid (DOIAA) by quantum chemical calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 121:533-543. [PMID: 24291430 DOI: 10.1016/j.saa.2013.10.101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 10/25/2013] [Accepted: 10/31/2013] [Indexed: 06/02/2023]
Abstract
This study represents the conformation, tautomeric stability, protonation and deprotonation effects, vibrational, electronic, NBO and NMR aspects of 2,4-Dioxoimidazolidine-5-acetic acid (DOIAA). Theoretical calculations were performed by ab initio HF and density functional theory (DFT)/B3LYP method using 6-311++G(d,p) basis sets. Tautomerism and the effect of solvent on the tautomeric equilibria in the gas phase and in different solvents were studied. The protonation and deprotonation effects on the reactivity and conformations of DOIAA were investigated. Electronic transitions were also studied and the most prominent transition corresponds to π→π*. Natural bond orbital (NBO) analysis was also carried out to find the intramolecular interactions and their stabilization energy. In DOIAA, the interaction between the lone pair donor orbital (n(LP1N5)) and the acceptor antibonding orbital π*(C6O7) reveals the strong stabilization energy of 224.9 kJ mol(-1). Molecular electrostatic potential (MEP) was calculated to predict the reactive sites of the title compound. The NMR results indicated that the observed chemical shifts for NH, COOH protons of DOIAA not only depend on the structure of the molecule being studied but also on the nature of the solvent, concentration of the sample and the presence of the other exchangeable protons.
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Affiliation(s)
- C Sridevi
- Department of Physics, Sona College of Technology, Salem 636 005, Tamil Nadu, India.
| | - G Velraj
- Department of Physics, Periyar University, Salem 636 011, Tamil Nadu, India.
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24
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Atkinson RC, Leonard DJ, Maury J, Castagnolo D, Volz N, Clayden J. Intramolecular arylation of amino acid enolates. Chem Commun (Camb) 2013; 49:9734-6. [DOI: 10.1039/c3cc46193a] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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26
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Hayashi T, Hamachi I. Traceless affinity labeling of endogenous proteins for functional analysis in living cells. Acc Chem Res 2012; 45:1460-9. [PMID: 22680975 DOI: 10.1021/ar200334r] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Protein labeling and imaging techniques have provided tremendous opportunities to study the structure, function, dynamics, and localization of individual proteins in the complex environment of living cells. Molecular biology-based approaches, such as GFP-fusion tags and monoclonal antibodies, have served as important tools for the visualization of individual proteins in cells. Although these techniques continue to be valuable for live cell imaging, they have a number of limitations that have only been addressed by recent progress in chemistry-based approaches. These chemical approaches benefit greatly from the smaller probe sizes that should result in fewer perturbations to proteins and to biological systems as a whole. Despite the research in this area, so far none of these labeling techniques permit labeling and imaging of selected endogenous proteins in living cells. Researchers have widely used affinity labeling, in which the protein of interest is labeled by a reactive group attached to a ligand, to identify and characterize proteins. Since the first report of affinity labeling in the early 1960s, efforts to fine-tune the chemical structures of both the reactive group and ligand have led to protein labeling with excellent target selectivity in the whole proteome of living cells. Although the chemical probes used for affinity labeling generally inactivate target proteins, this strategy holds promise as a valuable tool for the labeling and imaging of endogenous proteins in living cells and by extension in living animals. In this Account, we summarize traceless affinity labeling, a technique explored mainly in our laboratory. In our overview of the different labeling techniques, we emphasize the challenge of designing chemical probes that allow for dissociation of the affinity module (often a ligand) after the labeling reaction so that the labeled protein retains its native function. This feature distinguishes the traceless labeling approach from the traditional affinity labeling method and allows for real-time monitoring of protein activity. With the high target specificity and biocompatibility of this technique, we have achieved individual labeling and imaging of endogenously expressed proteins in samples of high biological complexity. We also highlight applications in which our current approach enabled the monitoring of important biological events, such as ligand binding, in living cells. These novel chemical labeling techniques are expected to provide a molecular toolbox for studying a wide variety of proteins and beyond in living cells.
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Affiliation(s)
- Takahiro Hayashi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Itaru Hamachi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan
- Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, 5 Sanbancho, Chiyoda-ku, Tokyo 102-0075, Japan
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Dhara K, Midya GC, Dash J. A Diversity-Oriented Approach to Spirocyclic and Fused Hydantoins via Olefin Metathesis. J Org Chem 2012; 77:8071-82. [DOI: 10.1021/jo301234r] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Kalyan Dhara
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West
Bengal 741252, India
| | - Ganesh Chandra Midya
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West
Bengal 741252, India
- Department
of Organic Chemistry, Indian Association for the Cultivation of Science,
Jadavpur, Kolkata-700032, India
| | - Jyotirmayee Dash
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West
Bengal 741252, India
- Department
of Organic Chemistry, Indian Association for the Cultivation of Science,
Jadavpur, Kolkata-700032, India
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28
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Olimpieri F, Bellucci MC, Marcelli T, Volonterio A. Regioselective multicomponent sequential synthesis of hydantoins. Org Biomol Chem 2012; 10:9538-55. [DOI: 10.1039/c2ob26498f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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29
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England JL. Allostery in protein domains reflects a balance of steric and hydrophobic effects. Structure 2011; 19:967-75. [PMID: 21742263 DOI: 10.1016/j.str.2011.04.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Revised: 04/05/2011] [Accepted: 04/06/2011] [Indexed: 10/18/2022]
Abstract
Allosteric conformational change underlies biological function in many proteins. Allostery refers to a conformational event in which one region of a protein undergoes structural rearrangement in response to a stimulus applied to a different region of the same protein. Here, I show for a variety of proteins that a simple, phenomenological model of the dependence of protein conformation on hydrophobic burial energy allows one to compute low-energy conformational fluctuations for a given sequence by using linear programming to find optimized combinations of sequence-specific hydrophobic burial modes that satisfy steric constraints. From these fluctuations one may calculate allosteric couplings between different sites in a protein domain. Although the physical basis of protein structure is complex and multifactorial, a simplified description of conformational energy in terms of the hydrophobic effect alone is sufficient to give a mechanistic explanation for many biologically important allosteric events.
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Affiliation(s)
- Jeremy L England
- 263 Icahn Laboratory, Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544, USA.
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30
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Schürpf T, Springer TA. Regulation of integrin affinity on cell surfaces. EMBO J 2011; 30:4712-27. [PMID: 21946563 DOI: 10.1038/emboj.2011.333] [Citation(s) in RCA: 134] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Accepted: 08/22/2011] [Indexed: 11/09/2022] Open
Abstract
Lymphocyte activation triggers adhesiveness of lymphocyte function-associated antigen-1 (LFA-1; integrin α(L)β(2)) for intercellular adhesion molecules (ICAMs) on endothelia or antigen-presenting cells. Whether the activation signal, after transmission through multiple domains to the ligand-binding αI domain, results in affinity changes for ligand has been hotly debated. Here, we present the first comprehensive measurements of LFA-1 affinities on T lymphocytes for ICAM-1 under a broad array of activating conditions. Only a modest increase in affinity for soluble ligand was detected after activation by chemokine or T-cell receptor ligation, conditions that primed LFA-1 and robustly induced lymphocyte adhesion to ICAM-1 substrates. By stabilizing well-defined LFA-1 conformations by Fab, we demonstrate the absolute requirement of the open LFA-1 headpiece for adhesiveness and high affinity. Interaction of primed LFA-1 with immobilized but not soluble ICAM-1 triggers energy-dependent affinity maturation of LFA-1 to an adhesive, high affinity state. Our results lend support to the traction or translational motion dependence of integrin activation.
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Affiliation(s)
- Thomas Schürpf
- Department of Pathology, Harvard Medical School, Immune Disease Institute and Children's Hospital, Boston, MA, USA
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31
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Gerona-Navarro G, González-Muñiz R, Fernández-Carvajal A, González-Ros JM, Ferrer-Montiel A, Carreño C, Albericio F, Royo M. Solid-phase synthesis of a library of amphipatic hydantoins. Discovery of new hits for TRPV1 blockade. ACS COMBINATORIAL SCIENCE 2011; 13:458-65. [PMID: 21671576 PMCID: PMC3296451 DOI: 10.1021/co1000986] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Some heterocyclic systems, called privileged scaffolds, appear frequently in bioactive products and marketed drugs. The combination of a recognized privileged scaffold (hydantoin) and a functional group with high incidence in bioactive molecules (guanidine) guided the design of a library of amphipatic compounds, which allowed the discovery of novel TRPV1 ion channel blockers. The library was synthesized by parallel solid-phase synthesis from an orthogonally protected resin-bound Lys-Lys skeleton. Key steps of the synthetic procedure were the construction of the hydantoin ring, by reaction of the N-terminal amino group with N,N-disuccinimidyl carbonate (DSC) and subsequent base-induced cyclization, and the guanidinylation of the C-terminal Lys side-chain after removal of the Alloc protecting-group. The preliminary biological studies have allowed the identification of some of the key structural features directing the blockage of capsaicin-induced Ca(2+) influx through TRPV1 channels, particularly, the strong preference showed for highly lipophilic acyl groups and substituted guanidine moieties. Active compounds based on this new pharmacophoric scaffold that display in vitro and in vivo inhibitory activity.
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Affiliation(s)
| | | | - Asia Fernández-Carvajal
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Av. de la Universidad, 03202 Elche, Spain
| | - José M. González-Ros
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Av. de la Universidad, 03202 Elche, Spain
| | - Antonio Ferrer-Montiel
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Av. de la Universidad, 03202 Elche, Spain
- DiverDrugs SL. Isaac Peral 17 (Pol. Ind. Camí Ral), 08850 Gavà, Spain
| | - Cristina Carreño
- DiverDrugs SL. Isaac Peral 17 (Pol. Ind. Camí Ral), 08850 Gavà, Spain
| | - Fernando Albericio
- Institute for Research in Biomedicine, Barcelona Science Park, Baldiri Reixac 10, 08028 Barcelona, Spain
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials, and Nanomedicine, Barcelona Science Park, University of Barcelona, Baldiri Reixac 10, 08028 Barcelona, Spain
- Department of Organic Chemistry, University of Barcelona, Martí i Franqués 1-11, 08028 Barcelona, Spain
| | - Miriam Royo
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials, and Nanomedicine, Barcelona Science Park, University of Barcelona, Baldiri Reixac 10, 08028 Barcelona, Spain
- Combinatorial Chemistry Unit, Barcelona Science Park, University of Barcelona, Baldiri Reixac 10, 08028 Barcelona, Spain
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32
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Latli B, Byrne D, Nummy L, Krishnamurthy D, Senanayake CH. Synthesis of potent lymphocyte function-associated antigen-1 inhibitors labeled with carbon-14 and deuterium, part 1. J Labelled Comp Radiopharm 2011. [DOI: 10.1002/jlcr.1920] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Bachir Latli
- Chemical Development; Boehringer Ingelheim Pharmaceuticals, Inc.; 900 Ridgebury Road; Ridgefield; CT; 06877; USA
| | - Denis Byrne
- Chemical Development; Boehringer Ingelheim Pharmaceuticals, Inc.; 900 Ridgebury Road; Ridgefield; CT; 06877; USA
| | - Larry Nummy
- Chemical Development; Boehringer Ingelheim Pharmaceuticals, Inc.; 900 Ridgebury Road; Ridgefield; CT; 06877; USA
| | - Dhileepkumar Krishnamurthy
- Chemical Development; Boehringer Ingelheim Pharmaceuticals, Inc.; 900 Ridgebury Road; Ridgefield; CT; 06877; USA
| | - Chris H. Senanayake
- Chemical Development; Boehringer Ingelheim Pharmaceuticals, Inc.; 900 Ridgebury Road; Ridgefield; CT; 06877; USA
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33
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Wang XJ, Frutos RP, Zhang L, Sun X, Xu Y, Wirth T, Nicola T, Nummy LJ, Krishnamurthy D, Busacca CA, Yee N, Senanayake CH. Asymmetric Synthesis of LFA-1 Inhibitor BIRT2584 on Metric Ton Scale. Org Process Res Dev 2011. [DOI: 10.1021/op200175t] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiao-Jun Wang
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877, United States
| | - Rogelio P. Frutos
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877, United States
| | - Li Zhang
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877, United States
| | - Xiufeng Sun
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877, United States
| | - Yibo Xu
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877, United States
| | - Thomas Wirth
- Department of Production and Engineering, Boehringer Ingelheim GmbH & Co.KG, 55216 Ingelheim am Rhein, Germany
| | - Thomas Nicola
- Department of Production and Engineering, Boehringer Ingelheim GmbH & Co.KG, 55216 Ingelheim am Rhein, Germany
| | - Lawrence J. Nummy
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877, United States
| | - Dhileep Krishnamurthy
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877, United States
| | - Carl A. Busacca
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877, United States
| | - Nathan Yee
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877, United States
| | - Chris H. Senanayake
- Chemical Development, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, Connecticut 06877, United States
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34
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Miura T, Mikano Y, Murakami M. Nickel-Catalyzed Synthesis of 1,3,5-Trisubstituted Hydantoins from Acrylates and Isocyanates. Org Lett 2011; 13:3560-3. [DOI: 10.1021/ol200957y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomoya Miura
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Yusuke Mikano
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510, Japan
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35
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Ha YM, Kim JA, Park YJ, Park D, Kim JM, Chung KW, Lee EK, Park JY, Lee JY, Lee HJ, Yoon JH, Moon HR, Chung HY. Analogs of 5-(substituted benzylidene)hydantoin as inhibitors of tyrosinase and melanin formation. Biochim Biophys Acta Gen Subj 2011; 1810:612-9. [DOI: 10.1016/j.bbagen.2011.03.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Revised: 02/28/2011] [Accepted: 03/02/2011] [Indexed: 10/18/2022]
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36
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Chigaev A, Smagley Y, Zhang Y, Waller A, Haynes MK, Amit O, Wang W, Larson RS, Sklar LA. Real-time analysis of the inside-out regulation of lymphocyte function-associated antigen-1 revealed similarities to and differences from very late antigen-4. J Biol Chem 2011; 286:20375-86. [PMID: 21515675 PMCID: PMC3121518 DOI: 10.1074/jbc.m110.206185] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Ten years ago, we introduced a fluorescent probe that shed light on the inside-out regulation of one of the major leukocyte integrins, very late antigen-4 (VLA-4, CD49d/CD29). Here we describe the regulation of another leukocyte integrin, lymphocyte function-associated antigen-1 (LFA-1, CD11a/CD18) using a novel small fluorescent probe in real time on live cells. We found that multiple signaling mechanisms regulate LFA-1 conformation in a manner analogous to VLA-4. LFA-1 can be rapidly activated by Gαi-coupled G protein-coupled receptors (GPCRs) and deactivated by Gαs-coupled GPCRs. The effects of Gαs-coupled GPCR agonists can be reversed in real time by receptor-specific antagonists. The specificity of the fluorescent probe binding has been assessed in a competition assay using the natural LFA-1 ligand ICAM-1 and the LFA-1-specific α I allosteric antagonist BIRT0377. Similar to VLA-4 integrin, modulation of the ligand dissociation rate can be observed for different LFA-1 affinity states. However, we also found a striking difference in the binding of the small fluorescent ligand. In the absence of inside-out activation ligand, binding to LFA-1 is extremely slow, at least 10 times slower than expected for diffusion-limited binding. This implies that an additional structural mechanism prevents ligand binding to inactive LFA-1. We propose that such a mechanism explains the inability of LFA-1 to support cell rolling, where the absence of its rapid engagement by a counterstructure in the inactive state leads to a requirement for a selectin-mediated rolling step.
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Affiliation(s)
- Alexandre Chigaev
- Department of Pathology and Cancer Center, University of New Mexico Health Sciences Center, Albuquerque, New Mexico 87131, USA.
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37
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Das J. Aliphatic diazirines as photoaffinity probes for proteins: recent developments. Chem Rev 2011; 111:4405-17. [PMID: 21466226 DOI: 10.1021/cr1002722] [Citation(s) in RCA: 197] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Joydip Das
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas 77204, USA.
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38
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Wang XJ, Xu Y, Zhang L, Krishnamurthy D, Wirth T, Nicola T, Senanayake CH. Efficient synthesis of a small molecule, nonpeptide inhibitor of LFA-1. Org Lett 2011; 12:4412-5. [PMID: 20831178 DOI: 10.1021/ol101960x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A three-stage process for the synthesis of LFA-1 inhibitor 1 from amine 4 with an overall yield of 65% is described. The key stage involves a Ph(3)PCl(2)-induced dehydration/cyclization of urea 6 followed by a regioselective bromination to give 1H-imidazo[1,2-a]imidazol-2-one 9. Br/Mg exchange of 9 followed by addition to SO(2) in THF and subsequent oxidation produces a sulfonyl chloride which is directly reacted with L-alaninamide using K(2)CO(3) as base in aqueous DMF/THF to give 1 in a one-pot operation. The process was implemented for the production of 1 on a metric ton scale.
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Affiliation(s)
- Xiao-jun Wang
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, Connecticut 06877, USA.
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39
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Marcelli T, Olimpieri F, Volonterio A. Domino synthesis of 1,3,5-trisubstituted hydantoins: a DFT study. Org Biomol Chem 2011; 9:5156-61. [DOI: 10.1039/c1ob05242j] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Structure–activity relationship (SAR) of the α-amino acid residue of potent tetrahydroisoquinoline (THIQ)-derived LFA-1/ICAM-1 antagonists. Bioorg Med Chem Lett 2011; 21:307-10. [DOI: 10.1016/j.bmcl.2010.11.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 10/26/2010] [Accepted: 11/01/2010] [Indexed: 02/04/2023]
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41
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Bellucci MC, Ghilardi A, Volonterio A. Three-component, one-pot sequential synthesis of glyco-hydantoin conjugates. Org Biomol Chem 2011; 9:8379-92. [DOI: 10.1039/c1ob06312j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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DelMonte AJ, Fan Y, Girard KP, Jones GS, Waltermire RE, Rosso V, Wang X. Kilogram Synthesis of a Second-Generation LFA-1/ICAM Inhibitor. Org Process Res Dev 2010. [DOI: 10.1021/op100225g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Albert J. DelMonte
- Process Research and Development, Bristol-Myers Squibb Company, One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey 08903-0191, United States
| | - Yu Fan
- Process Research and Development, Bristol-Myers Squibb Company, One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey 08903-0191, United States
| | - Kevin P. Girard
- Process Research and Development, Bristol-Myers Squibb Company, One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey 08903-0191, United States
| | - Gregory S. Jones
- Process Research and Development, Bristol-Myers Squibb Company, One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey 08903-0191, United States
| | - Robert E. Waltermire
- Process Research and Development, Bristol-Myers Squibb Company, One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey 08903-0191, United States
| | - Victor Rosso
- Process Research and Development, Bristol-Myers Squibb Company, One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey 08903-0191, United States
| | - Xuebao Wang
- Process Research and Development, Bristol-Myers Squibb Company, One Squibb Drive, P.O. Box 191, New Brunswick, New Jersey 08903-0191, United States
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Sevoflurane binds and allosterically blocks integrin lymphocyte function-associated antigen-1. Anesthesiology 2010; 113:600-9. [PMID: 20693879 DOI: 10.1097/aln.0b013e3181e89a77] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Volatile anesthetics have been shown to modify immune cell functions via several mechanisms, some of which have been only partially elucidated. We demonstrated that isoflurane inhibits primary leukocyte integrin lymphocyte function-associated antigen-1 (LFA-1) by binding to the allosteric cavity critical for conformational activation to its high-affinity form. It remains to be determined whether the allosteric inhibition of LFA-1 by isoflurane can be generalized to other anesthetics such as sevoflurane. METHODS The effects of sevoflurane on the ability of LFA-1 to bind to its counter-ligand, intercellular adhesion molecule-1, was studied in leukocytes by flow cytometry. To examine whether sevoflurane acts directly on LFA-1, we measured ligand-binding using beads coated with purified LFA-1 protein. To distinguish between competitive versus allosteric inhibition, we analyzed the effects of sevoflurane on both wild-type and mutant-locked high-affinity LFA-1. One-way analysis of variance was employed for statistical analysis of the data. Nuclear magnetic resonance spectroscopy was used to identify sevoflurane binding site(s). RESULTS Sevoflurane at clinically relevant concentrations inhibited the ligand-binding function of LFA-1 in leukocytes as well as in cell-free assays (P<0.05). Sevoflurane blocked wild-type but not locked high-affinity LFA-1, thereby demonstrating an allosteric mode of inhibition. Nuclear magnetic resonance spectroscopy revealed that sevoflurane bound to the allosteric cavity, to which LFA-1 allosteric antagonists and isoflurane also bind. CONCLUSIONS This study suggests that sevoflurane also blocks the activation-dependent conformational changes of LFA-1 to the high-affinity form. The allosteric mode of action exemplified by sevoflurane and isoflurane via LFA-1 might represent one of the underlying mechanisms of anesthetic-mediated immunomodulation.
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Gao M, Yang Y, Wu YD, Deng C, Shu WM, Zhang DX, Cao LP, She NF, Wu AX. An Efficient Synthesis of Hydantoins via Sustainable Integration of Coupled Domino Processes. Org Lett 2010; 12:4026-9. [DOI: 10.1021/ol1015948] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Meng Gao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Yan Yang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Cong Deng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Wen-Ming Shu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Dong-Xue Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Li-Ping Cao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - Neng-Fang She
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei, Wuhan 430079, P. R. China
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Discovery of tetrahydroisoquinoline (THIQ) derivatives as potent and orally bioavailable LFA-1/ICAM-1 antagonists. Bioorg Med Chem Lett 2010; 20:5269-73. [PMID: 20655213 DOI: 10.1016/j.bmcl.2010.06.145] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2010] [Revised: 06/25/2010] [Accepted: 06/29/2010] [Indexed: 12/22/2022]
Abstract
This letter describes the discovery of a novel series of tetrahydroisoquinoline (THIQ)-derived small molecules that potently inhibit both human T-cell migration and super-antigen induced T-cell activation through disruption of the binding of integrin LFA-1 to its receptor, ICAM-1. In addition to excellent in vitro potency, 6q shows good pharmacokinetic properties and its ethyl ester (6t) demonstrates good oral bioavailability in both mouse and rat. Either intravenous administration of 6q or oral administration of its ethyl ester (6t) produced a significant reduction of neutrophil migration in a thioglycollate-induced murine peritonitis model.
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Watterson SH, Xiao Z, Dodd DS, Tortolani DR, Vaccaro W, Potin D, Launay M, Stetsko DK, Skala S, Davis PM, Lee D, Yang X, McIntyre KW, Balimane P, Patel K, Yang Z, Marathe P, Kadiyala P, Tebben AJ, Sheriff S, Chang CY, Ziemba T, Zhang H, Chen BC, DelMonte AJ, Aranibar N, McKinnon M, Barrish JC, Suchard SJ, Murali Dhar TG. Small molecule antagonist of leukocyte function associated antigen-1 (LFA-1): structure-activity relationships leading to the identification of 6-((5S,9R)-9-(4-cyanophenyl)-3-(3,5-dichlorophenyl)-1-methyl-2,4-dioxo-1,3,7-triazaspiro[4.4]nonan-7-yl)nicotinic acid (BMS-688521). J Med Chem 2010; 53:3814-30. [PMID: 20405922 DOI: 10.1021/jm100348u] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Leukocyte function-associated antigen-1 (LFA-1), also known as CD11a/CD18 or alpha(L)beta(2), belongs to the beta(2) integrin subfamily and is constitutively expressed on all leukocytes. The major ligands of LFA-1 include three intercellular adhesion molecules 1, 2, and 3 (ICAM 1, 2, and 3). The interactions between LFA-1 and the ICAMs are critical for cell adhesion, and preclinical animal studies and clinical data from the humanized anti-LFA-1 antibody efalizumab have provided proof-of-concept for LFA-1 as an immunological target. This article will detail the structure-activity relationships (SAR) leading to a novel second generation series of highly potent spirocyclic hydantoin antagonists of LFA-1. With significantly enhanced in vitro and ex vivo potency relative to our first clinical compound (1), as well as demonstrated in vivo activity and an acceptable pharmacokinetic and safety profile, 6-((5S,9R)-9-(4-cyanophenyl)-3-(3,5-dichlorophenyl)-1-methyl-2,4-dioxo-1,3,7-triazaspiro-[4.4]nonan-7-yl)nicotinic acid (2e) was selected to advance into clinical trials.
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Affiliation(s)
- Scott H Watterson
- Bristol-Myers Squibb Research and Development, P.O. Box 4000, Princeton, New Jersey 08543, USA.
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Olimpieri F, Bellucci MC, Volonterio A, Zanda M. A Mild, Efficient Approach for the Synthesis of 1,5-Disubstituted Hydantoins. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900868] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Chapter 4 Activation of Leukocyte Integrins. CURRENT TOPICS IN MEMBRANES 2009. [DOI: 10.1016/s1063-5823(09)64004-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Woodside DG, Vanderslice P. Cell adhesion antagonists: therapeutic potential in asthma and chronic obstructive pulmonary disease. BioDrugs 2008; 22:85-100. [PMID: 18345706 DOI: 10.2165/00063030-200822020-00002] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) and asthma are inflammatory diseases of the lung where a hallmark feature is excessive leukocyte infiltration that leads to tissue injury. Cell adhesion molecules (e.g. selectins and integrins) play a key role in cell trafficking, and in the lung they regulate leukocyte extravasation, migration within the interstitium, cellular activation, and tissue retention. All selectin family members (including L-selectin, P-selectin, and E-selectin) and many of the beta1 and beta2 integrins appear to be important therapeutic targets, as numerous animal studies have demonstrated essential roles for these cell adhesion molecules in lung inflammation. Not surprisingly, these families of adhesion molecules have been under intense investigation by the pharmaceutical industry for the development of novel therapeutics. Integrins are validated drug targets, as drugs that antagonize integrin alphaIIbbeta3 (e.g. abciximab), integrin alphaLbeta2 (efalizumab), and integrin alpha4beta1 (natalizumab) are currently US FDA-approved for acute coronary syndromes, psoriasis, and multiple sclerosis, respectively. However, none has been approved for indications related to asthma or COPD. Here, we provide an overview of roles played by selectins and integrins in lung inflammation. We also describe recent clinical results (both failures and successes) in developing adhesion molecule antagonists, with specific emphasis on those targets that may have potential benefit in asthma and COPD. Early clinical trials using selectin and integrin antagonists have met with limited success. However, recent positive phase II clinical trials with a small-molecule selectin antagonist (bimosiamose) and a small-molecule integrin alpha4beta1 antagonist (valategrast [R411]), have generated enthusiastic anticipation that novel strategies to treat asthma and COPD may be forthcoming.
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Affiliation(s)
- Darren G Woodside
- Department of Drug Discovery, Biological Sciences, Encysive Pharmaceuticals Inc., Houston, Texas, USA.
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C. S. AK, Prasad SBB, Vinaya K, Chandrappa S, Thimmegowda NR, Ranganatha SR, Swarup S, Rangappa KS. Synthesis and antiproliferative activity of substituted diazaspiro hydantoins: a structure–activity relationship study. Invest New Drugs 2008; 27:131-9. [DOI: 10.1007/s10637-008-9150-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2008] [Accepted: 06/03/2008] [Indexed: 11/30/2022]
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