1
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Jiang T, Chen L, Wen S, Zhang L, Wang T, Xiong F. Synthesis of 1,1-Diarylvinylsulfides via Visible-Light-Promoted Cascade Reaction of Alkynoates with Phenyl Disulfides. J Org Chem 2024. [PMID: 38175923 DOI: 10.1021/acs.joc.3c01988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
Without any additives and photocatalysts, the visible-light-promoted radical cascade reaction between alkynoates and phenyl disulfides has been developed at room temperature. Through S-S bond photolysis and homolytic cleavage, addition of a sulfur radical, aryl migration, decarboxylation, and H atom abstraction, the cascade reaction provides an efficient and practical route to trisubstituted 1,1-diarylvinylsulfides with a wide scope of substrates and good to excellent yields.
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Affiliation(s)
- Tao Jiang
- College of Chemistry and Chemical Engineering, National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, Jiangxi Normal University, Nanchang, Jiangxi 330022, P.R. China
| | - Long Chen
- College of Chemistry and Chemical Engineering, National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, Jiangxi Normal University, Nanchang, Jiangxi 330022, P.R. China
| | - Shimei Wen
- College of Chemistry and Chemical Engineering, National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, Jiangxi Normal University, Nanchang, Jiangxi 330022, P.R. China
| | - Lei Zhang
- College of Chemistry and Chemical Engineering, National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, Jiangxi Normal University, Nanchang, Jiangxi 330022, P.R. China
| | - Tao Wang
- College of Chemistry and Chemical Engineering, National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, Jiangxi Normal University, Nanchang, Jiangxi 330022, P.R. China
| | - Fei Xiong
- College of Chemistry and Chemical Engineering, National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, Jiangxi Normal University, Nanchang, Jiangxi 330022, P.R. China
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2
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Asoh T, Tashiro H, Terada M, Nakamura I. Gold-Catalyzed Intermolecular Alkyne Insertion into the N-S Bond in Sulfenamides. Org Lett 2022; 24:9264-9268. [PMID: 36512340 DOI: 10.1021/acs.orglett.2c03831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Gold-catalyzed reactions between sulfenamides and terminal alkynes proceeded via cis-insertion of alkynes into the N-S bond in sulfenamides, affording the corresponding β-sulfenylenamines in yields up to 90%. Mechanistic studies revealed that the reactions proceeded via nucleophilic attack of the sulfenamide nitrogen atom on the π-activated alkyne, followed by tosylate-assisted intermolecular transfer of the sulfenyl group.
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Affiliation(s)
- Takato Asoh
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Hiroki Tashiro
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Itaru Nakamura
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8578, Japan.,Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8578, Japan
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3
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Gao HJ, Miao YH, Jia SK, Li N, Xu LP, Wang W, Wang MC, Mei GJ. Azo group-enabled metal- and oxidant-free alkenyl C–H thiolation: Access to stereodefined tetrasubstituted acyclic olefins. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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4
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Velasco N, Martínez-Núñez C, Fernández-Rodríguez MÁ, Sanz R, Suárez-Pantiga S. NIS/HFIP–Mediated Synthesis of Indene‐based β‐Iodoalkenyl Sulfides from Propargylic Sulfides. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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5
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Abdelwahab AB, El-Sawy ER, Hanna AG, Bagrel D, Kirsch G. A Comprehensive Overview of the Developments of Cdc25 Phosphatase Inhibitors. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082389. [PMID: 35458583 PMCID: PMC9031484 DOI: 10.3390/molecules27082389] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/02/2022] [Accepted: 04/04/2022] [Indexed: 11/16/2022]
Abstract
Cdc25 phosphatases have been considered promising targets for anticancer development due to the correlation of their overexpression with a wide variety of cancers. In the last two decades, the interest in this subject has considerably increased and many publications have been launched concerning this issue. An overview is constructed based on data analysis of the results of the previous publications covering the years from 1992 to 2021. Thus, the main objective of the current review is to report the chemical structures of Cdc25s inhibitors and answer the question, how to design an inhibitor with better efficacy and lower toxicity?
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Affiliation(s)
| | - Eslam Reda El-Sawy
- National Research Centre, Chemistry of Natural Compounds Department, Dokki, Cairo 12622, Egypt; (E.R.E.-S.); (A.G.H.)
| | - Atef G. Hanna
- National Research Centre, Chemistry of Natural Compounds Department, Dokki, Cairo 12622, Egypt; (E.R.E.-S.); (A.G.H.)
| | - Denyse Bagrel
- Laboratoire Structure et Réactivité des Systèmes Moléculaires Complexes, UMR CNRS 7565, Université de Lorraine, Campus Bridoux, Rue du Général Delestraint, 57050 Metz, France;
| | - Gilbert Kirsch
- Laboratoire Lorrain de Chimie Moléculaire (L.2.C.M.), Université de Lorraine, 57078 Metz, France
- Correspondence: ; Tel.: +33-03-72-74-92-00; Fax: +33-03-72-74-91-87
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6
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Wang J, Zhuang Y, Zhao J, Bi Y, Li C, Bi G, Yang K, Huang X, Zhang W. Copper-catalyzed direct sulfenoamination of saturated ketones via in situ formed enaminones. Org Biomol Chem 2022; 20:1749-1753. [PMID: 35142759 DOI: 10.1039/d1ob02469h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A sequential and efficient protocol for the synthesis of α-thiolated enaminones has been developed using copper-TEMPO systems. This reaction features a broad substrate scope to afford the desired product in good to excellent yields with high stereoselectivity. A preliminary mechanistic study suggests that the in situ formed enaminone acts as the key intermediate.
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Affiliation(s)
- Jiateng Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, Shandong, P. R. China.
| | - Yunqing Zhuang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, Shandong, P. R. China.
| | - Jie Zhao
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, Shandong, P. R. China.
| | - Yusong Bi
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, Shandong, P. R. China.
| | - Chunyan Li
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, Shandong, P. R. China.
| | - Gehua Bi
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, Shandong, P. R. China.
| | - Kai Yang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, Shandong, P. R. China.
| | - Xin Huang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, Shandong, P. R. China.
| | - Weimin Zhang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, Shandong, P. R. China.
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7
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Mukherjee S, Pramanik A. Mild and Expeditious Synthesis of Sulfenyl Enaminones of l-α-Amino Esters and Aryl/Alkyl Amines through NCS-Mediated Sulfenylation. ACS OMEGA 2021; 6:33805-33821. [PMID: 34926928 PMCID: PMC8675011 DOI: 10.1021/acsomega.1c05058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 11/18/2021] [Indexed: 06/14/2023]
Abstract
Sulfenylation or selenylation of enaminones of l-α-amino esters requires mild reaction conditions due to the presence of a racemization-prone chiral center and reactive side chains. An N-chlorosuccinimide (NCS)-mediated methodology has been developed for rapid sulfenylation of enaminones of l-α-amino esters and aryl/alkyl amines at room temperature in open air under metal-free conditions. Enaminones of l-α-amino esters bearing aliphatic, aromatic, and heterocyclic side chains react efficiently with diverse aryl/alkyl/heteroaryl thiols (R1SH) in the presence of NCS to afford a library of biologically important sulfenyl enaminones in good-to-excellent yields (71-90%). Under similar reaction conditions, the enaminones also react with benzeneselenol to produce selenyl enaminones in good yield (73-83%). The NCS-mediated pathway generates sulfenyl chloride (R1SCl) as an intermediate which leads to rapid sulfenylation of enaminones through cross-dehydrogenative coupling (CDC) under mild reaction conditions.
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Affiliation(s)
- Sayan Mukherjee
- Department of Chemistry, University
of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Animesh Pramanik
- Department of Chemistry, University
of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
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8
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Fu Y, Zhao X, Chen D, Luo J, Huang S. Cu-catalyzed coupling of indanone oxime acetates with thiols to 2,3-difunctionalized indenones. Chem Commun (Camb) 2021; 57:10719-10722. [PMID: 34581714 DOI: 10.1039/d1cc04167c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A Cu-catalyzed coupling reaction of indanone oxime acetates with thiols has been developed for the synthesis of 2,3-functionalized 1-indenones. This protocol has several features including easy mild reaction conditions, stabilized enamine products, good tolerance of functional groups, and no external oxidants. This reaction enables direct derivatization on the indanone ring to provide valuable functionalized indenones at room temperature.
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Affiliation(s)
- Yuanyuan Fu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
| | - Xueyan Zhao
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
| | - Dengfeng Chen
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
| | - Jinyue Luo
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
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9
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Hu W, Niu B, Xiao X, Cai M. Recyclable Gold Catalyst for the Stereoselective Thioallylation of Alkynes. J Org Chem 2021; 86:13598-13609. [PMID: 34549962 DOI: 10.1021/acs.joc.1c01641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The heterogeneous gold(I)-catalyzed stereoselective thioallylation of electron-deficient alkynes with allyl sulfides has been achieved by using an MCM-41-immobilized sterically demanding NHC-gold(I) complex [MCM-41-IPrAuNTf2] as the catalyst under mild conditions, delivering a wide variety of stereodefined tri- and tetrasubstituted functionalized vinyl sulfides in good to excellent yields. The new heterogeneous MCM-41-IPrAuNTf2 catalyst exhibits an activity comparable to a homogeneous IPrAuNTf2 complex and can be recovered via a simple filtration process and reused for at least seven consecutive cycles without any apparent loss of its catalytic activity and selectivity.
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Affiliation(s)
- Wenli Hu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Bingbo Niu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Xiaoqiang Xiao
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
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10
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Li D, Jia J, Zhao X, Zhang Z, Wang H, Li S, Xu Z, Xie Z. Electrochemical Oxidation Cross Dehydrogenative Coupling of Enamines and Thiophenols for the Synthesis of Vinyl Sulfides. ChemistrySelect 2021. [DOI: 10.1002/slct.202101541] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Dandan Li
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering Xuchang University Henan 461000 P. R. China
| | - Jingpeng Jia
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering Xuchang University Henan 461000 P. R. China
| | - Xiaowei Zhao
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering Xuchang University Henan 461000 P. R. China
| | - Zixuan Zhang
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering Xuchang University Henan 461000 P. R. China
| | - Huimin Wang
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering Xuchang University Henan 461000 P. R. China
| | - Shuaibing Li
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering Xuchang University Henan 461000 P. R. China
| | - Zhihong Xu
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering Xuchang University Henan 461000 P. R. China
| | - Zhiyu Xie
- Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province, Institute of Surface Micro and Nano Materials, College of Chemical and Materials Engineering Xuchang University Henan 461000 P. R. China
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11
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Aliotta F, Nasso R, Rullo R, Arcucci A, Avagliano A, Simonetti M, Sanità G, Masullo M, Lavecchia A, Ruocco MR, Vendittis ED. Inhibition mechanism of naphthylphenylamine derivatives acting on the CDC25B dual phosphatase and analysis of the molecular processes involved in the high cytotoxicity exerted by one selected derivative in melanoma cells. J Enzyme Inhib Med Chem 2021; 35:1866-1878. [PMID: 32990107 PMCID: PMC7580834 DOI: 10.1080/14756366.2020.1819257] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The dual phosphatases CDC25 are involved in cell cycle regulation and overexpressed in many tumours, including melanoma. CDC25 is a promising target for discovering anticancer drugs, and several studies focussed on characterisation of quinonoid CDC25 inhibitors, frequently causing undesired side toxic effects. Previous work described an optimisation of the inhibition properties by naphthylphenylamine (NPA) derivatives of NSC28620, a nonquinonoid CDC25 inhibitor. Now, the CDC25B•inhibitor interaction was investigated through fluorescence studies, shedding light on the different inhibition mechanism exerted by NPA derivatives. Among the molecular processes, mediating the specific and high cytotoxicity of one NPA derivative in melanoma cells, we observed decrease of phosphoAkt, increase of p53, reduction of CDC25 forms, cytochrome c cytosolic translocation and increase of caspase activity, that lead to the activation of an apoptotic programme. A basic knowledge on CDC25 inhibitors is relevant for discovering potent bioactive molecules, to be used as anticancer agents against the highly aggressive melanoma.
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Affiliation(s)
- Federica Aliotta
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Rosarita Nasso
- Department of Movement Sciences and Wellness, University of Naples "Parthenope", Naples, Italy
| | - Rosario Rullo
- Institute for the Animal Production Systems in the Mediterranean Environment, CNR, Naples, Italy
| | - Alessandro Arcucci
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Angelica Avagliano
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Martina Simonetti
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Gennaro Sanità
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Mariorosario Masullo
- Department of Movement Sciences and Wellness, University of Naples "Parthenope", Naples, Italy
| | - Antonio Lavecchia
- Department of Pharmacy, "Drug Discovery" Laboratory, University of Naples Federico II, Naples, Italy
| | - Maria Rosaria Ruocco
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
| | - Emmanuele De Vendittis
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Naples, Italy
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12
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Feng Q, Huang H, Sun J. Ru-Catalyzed [3 + 2] Cycloaddition of Nitrile Oxides and Electron-Rich Alkynes with Reversed Regioselectivity. Org Lett 2021; 23:2431-2436. [PMID: 33750136 DOI: 10.1021/acs.orglett.1c00273] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Polarity reversal ("umpolung") of a functional group can override its inherent reactivity and lead to distinct bond-forming modes. Herein we describe a rarely studied cycloaddition between nitrile oxides and electron-rich alkynes with reversed regioselectivity, leading to the useful 4-heterosubstituted isoxazoles. The use of a ruthenium catalyst completely overrides the inherent polarity of nitrile oxides. This reversed regioselectivity was also observed for their reactions with a range of electron-deficient alkynes.
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Affiliation(s)
- Qiang Feng
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.,Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
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13
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In Silico Identification of Small Molecules as New Cdc25 Inhibitors through the Correlation between Chemosensitivity and Protein Expression Pattern. Int J Mol Sci 2021; 22:ijms22073714. [PMID: 33918281 PMCID: PMC8038176 DOI: 10.3390/ijms22073714] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 03/29/2021] [Accepted: 03/31/2021] [Indexed: 01/11/2023] Open
Abstract
The cell division cycle 25 (Cdc25) protein family plays a crucial role in controlling cell proliferation, making it an excellent target for cancer therapy. In this work, a set of small molecules were identified as Cdc25 modulators by applying a mixed ligand-structure-based approach and taking advantage of the correlation between the chemosensitivity of selected structures and the protein expression pattern of the proposed target. In the first step of the in silico protocol, a set of molecules acting as Cdc25 inhibitors were identified through a new ligand-based protocol and the evaluation of a large database of molecular structures. Subsequently, induced-fit docking (IFD) studies allowed us to further reduce the number of compounds biologically screened. In vitro antiproliferative and enzymatic inhibition assays on the selected compounds led to the identification of new structurally heterogeneous inhibitors of Cdc25 proteins. Among them, J3955, the most active inhibitor, showed concentration-dependent antiproliferative activity against HepG2 cells, with GI50 in the low micromolar range. When J3955 was tested in cell-cycle perturbation experiments, it caused mitotic failure by G2/M-phase cell-cycle arrest. Finally, Western blotting analysis showed an increment of phosphorylated Cdk1 levels in cells exposed to J3955, indicating its specific influence in cellular pathways involving Cdc25 proteins.
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14
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Margalef J, Samec JSM. Assessing Methodologies to Synthesize α-Sulfenylated Carbonyl Compounds by Green Chemistry Metrics. CHEMSUSCHEM 2021; 14:808-823. [PMID: 33180999 PMCID: PMC7894555 DOI: 10.1002/cssc.202002409] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/08/2020] [Indexed: 06/11/2023]
Abstract
α-Sulfenylated carbonyl compounds are important both as active pharmaceutical ingredients and as intermediates in organic synthesis. Owing to their relevance in synthetic organic chemistry, this Minireview focuses on assessing the most relevant synthetic procedures based on green chemistry metrics. The Minireview starts with the traditional routes and then focuses on more recently developed methodologies. These routes include sulfenylating reagents using organocatalysis, cross-dehydrogenative couplings using in situ halogenations to prevent reactive intermediates in high concentrations, oxidative couplings using terminal oxidants such as DDQ or TEMPO, and redox-neutral couplings using transition metal catalysis. These methodologies have been evaluated on the basis of atom economy, E factor, and the safety and toxicity of the transformations and the solvents used. Besides using green metrics to evaluate these novel methodologies, the synthetic utility is also assessed with regard to the availability of starting materials and the generality of the reactions. This Minireview aims to inspire researchers to apply green assessments to other methodologies and also for them to take measures to increase the greenness of their developed transformations.
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Affiliation(s)
- Jèssica Margalef
- Departament de Química Física i InorgànicaUniversitat Rovira i VirgiliC/ Marcel lí Domingo, 143007TarragonaSpain
| | - Joseph S. M. Samec
- Department of Organic ChemistryStockholm UniversitySvante Arrhenius väg 16 C106 91StockholmSweden
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15
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Shang Z, Chen Q, Xing L, Zhang Y, Wait L, Du Y. in
situ
Formation of RSCl/ArSeCl and Their Oxidative Coupling with Enaminone Derivatives Under Transition‐metal Free Conditions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900940] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Zhenhua Shang
- College of Chemical and Pharmaceutical EngineeringHebei University of Science and Technology; Hebei Research Center of Pharmaceutical and Chemical Engineering Shijiazhuang 050018 People's Republic of China
| | - Qingyu Chen
- College of Chemical and Pharmaceutical EngineeringHebei University of Science and Technology; Hebei Research Center of Pharmaceutical and Chemical Engineering Shijiazhuang 050018 People's Republic of China
| | - Linlin Xing
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and TechnologyTianjin University Tianjin 300072 People's Republic of China
| | - Yilin Zhang
- C. Eugene Bennett Department of ChemistryWest Virginia University, Morgantown West Virginia 26506-6045 United States
| | - Laura Wait
- School of Chemistry and Molecular BiosciencesThe University of Queensland St Lucia, Queensland 4068 Australia
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and TechnologyTianjin University Tianjin 300072 People's Republic of China
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16
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Cerchia C, Nasso R, Mori M, Villa S, Gelain A, Capasso A, Aliotta F, Simonetti M, Rullo R, Masullo M, De Vendittis E, Ruocco MR, Lavecchia A. Discovery of Novel Naphthylphenylketone and Naphthylphenylamine Derivatives as Cell Division Cycle 25B (CDC25B) Phosphatase Inhibitors: Design, Synthesis, Inhibition Mechanism, and in Vitro Efficacy against Melanoma Cell Lines. J Med Chem 2019; 62:7089-7110. [PMID: 31294975 DOI: 10.1021/acs.jmedchem.9b00632] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
CDC25 phosphatases play a critical role in the regulation of the cell cycle and thus represent attractive cancer therapeutic targets. We previously discovered the 4-(2-carboxybenzoyl)phthalic acid (NSC28620) as a new CDC25 inhibitor endowed with promising anticancer activity in breast, prostate, and leukemia cells. Herein, we report a structure-based optimization of NSC28620, leading to the identification of a series of novel naphthylphenylketone and naphthylphenylamine derivatives as CDC25B inhibitors. Compounds 7j, 7i, 6e, 7f, and 3 showed higher inhibitory activity than the initial lead, with Ki values in the low micromolar range. Kinetic analysis, intrinsic fluorescence studies, and induced fit docking simulations provided a mechanistic understanding of the activity of these derivatives. All compounds were tested in the highly aggressive human melanoma cell lines A2058 and A375. Compound 4a potently inhibited cell proliferation and colony formation, causing an increase of the G2/M phase and a reduction of the G0/G1 phase of the cell cycle in both cell lines.
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Affiliation(s)
- Carmen Cerchia
- Department of Pharmacy, "Drug Discovery" Laboratory , University of Naples Federico II , Via D. Montesano, 49 , 80131 Naples , Italy
| | - Rosarita Nasso
- Department of Molecular Medicine and Medical Biotechnology , University of Naples Federico II , Via S. Pansini 5 , 80131 Naples , Italy.,Department of Movement Sciences and Wellness , University of Naples "Parthenope" , 80133 Naples , Italy
| | - Matteo Mori
- Department of Pharmaceutical Sciences , University of Milan , Via Mangiagalli, 25 , 20133 Milan , Italy
| | - Stefania Villa
- Department of Pharmaceutical Sciences , University of Milan , Via Mangiagalli, 25 , 20133 Milan , Italy
| | - Arianna Gelain
- Department of Pharmaceutical Sciences , University of Milan , Via Mangiagalli, 25 , 20133 Milan , Italy
| | - Alessandra Capasso
- Department of Molecular Medicine and Medical Biotechnology , University of Naples Federico II , Via S. Pansini 5 , 80131 Naples , Italy
| | - Federica Aliotta
- Department of Molecular Medicine and Medical Biotechnology , University of Naples Federico II , Via S. Pansini 5 , 80131 Naples , Italy
| | - Martina Simonetti
- Department of Molecular Medicine and Medical Biotechnology , University of Naples Federico II , Via S. Pansini 5 , 80131 Naples , Italy
| | - Rosario Rullo
- Department of Molecular Medicine and Medical Biotechnology , University of Naples Federico II , Via S. Pansini 5 , 80131 Naples , Italy.,Institute for the Animal Production Systems in the Mediterranean Environment , Via Argine 1085 , 80147 Naples , Italy
| | - Mariorosario Masullo
- Department of Movement Sciences and Wellness , University of Naples "Parthenope" , 80133 Naples , Italy
| | - Emmanuele De Vendittis
- Department of Molecular Medicine and Medical Biotechnology , University of Naples Federico II , Via S. Pansini 5 , 80131 Naples , Italy
| | - Maria Rosaria Ruocco
- Department of Molecular Medicine and Medical Biotechnology , University of Naples Federico II , Via S. Pansini 5 , 80131 Naples , Italy
| | - Antonio Lavecchia
- Department of Pharmacy, "Drug Discovery" Laboratory , University of Naples Federico II , Via D. Montesano, 49 , 80131 Naples , Italy
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17
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Electrochemical Oxidative Csp
3
—H/S—H Cross‐Coupling with Hydrogen Evolution for Synthesis of Tetrasubstituted Olefins. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900113] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Li D, Li S, Peng C, Lu L, Wang S, Wang P, Chen YH, Cong H, Lei A. Electrochemical oxidative C-H/S-H cross-coupling between enamines and thiophenols with H 2 evolution. Chem Sci 2019; 10:2791-2795. [PMID: 30996999 PMCID: PMC6419947 DOI: 10.1039/c8sc05143g] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 01/05/2019] [Indexed: 11/21/2022] Open
Abstract
Electrochemical oxidative C-H/S-H cross-coupling has been developed to construct the C-S bond in a highly straightforward and efficient manner. Various enamines and (hetero)aryl thiols could be transformed smoothly under undivided electrolytic cell conditions. Moreover, this electrosynthesis strategy not only avoided the use of chemical oxidants and transition metal catalysts, but also exhibited excellent atom economy.
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Affiliation(s)
- Dandan Li
- School of Chemistry and Chemical Engineering , Xuchang University , Xuchang 461000 , Henan , P. R. China
| | - Shuaibing Li
- School of Chemistry and Chemical Engineering , Xuchang University , Xuchang 461000 , Henan , P. R. China
| | - Chong Peng
- School of Chemistry and Chemical Engineering , Xuchang University , Xuchang 461000 , Henan , P. R. China
| | - Lijun Lu
- College of Chemistry and Molecular Sciences , Institute for Advanced Studies (IAS) , Wuhan University , Wuhan 430072 , Hubei , P. R. China .
| | - Shengchun Wang
- College of Chemistry and Molecular Sciences , Institute for Advanced Studies (IAS) , Wuhan University , Wuhan 430072 , Hubei , P. R. China .
| | - Pan Wang
- College of Chemistry and Molecular Sciences , Institute for Advanced Studies (IAS) , Wuhan University , Wuhan 430072 , Hubei , P. R. China .
| | - Yi-Hung Chen
- College of Chemistry and Molecular Sciences , Institute for Advanced Studies (IAS) , Wuhan University , Wuhan 430072 , Hubei , P. R. China .
| | - Hengjiang Cong
- College of Chemistry and Molecular Sciences , Institute for Advanced Studies (IAS) , Wuhan University , Wuhan 430072 , Hubei , P. R. China .
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences , Institute for Advanced Studies (IAS) , Wuhan University , Wuhan 430072 , Hubei , P. R. China .
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19
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Velasco N, Virumbrales C, Sanz R, Suárez-Pantiga S, Fernández-Rodríguez MA. General Synthesis of Alkenyl Sulfides by Palladium-Catalyzed Thioetherification of Alkenyl Halides and Tosylates. Org Lett 2018; 20:2848-2852. [PMID: 29737858 DOI: 10.1021/acs.orglett.8b00854] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The cross-coupling reaction of alkenyl bromides with thiols catalyzed by palladium complexes derived from inexpensive dppf ligand is reported. These reactions occur under low catalyst loading and in high yields and display wide scope, including the coupling of bulky thiols and trisubstituted bromoolefins, and functional group tolerance. In addition, the thioetherification of less reactive chloroalkenes and, for the first time, alkenyl tosylates was accomplished using a catalyst generated from CyPF tBu alkylbisphosphine ligand.
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Affiliation(s)
- Noelia Velasco
- Área de Química Orgánica, Departamento de Química, Facultad de Ciencias , Universidad de Burgos , Pza. Misael Bañuelos s/n , 09001 Burgos , Spain
| | - Cintia Virumbrales
- Área de Química Orgánica, Departamento de Química, Facultad de Ciencias , Universidad de Burgos , Pza. Misael Bañuelos s/n , 09001 Burgos , Spain
| | - Roberto Sanz
- Área de Química Orgánica, Departamento de Química, Facultad de Ciencias , Universidad de Burgos , Pza. Misael Bañuelos s/n , 09001 Burgos , Spain
| | - Samuel Suárez-Pantiga
- Área de Química Orgánica, Departamento de Química, Facultad de Ciencias , Universidad de Burgos , Pza. Misael Bañuelos s/n , 09001 Burgos , Spain
| | - Manuel A Fernández-Rodríguez
- Área de Química Orgánica, Departamento de Química, Facultad de Ciencias , Universidad de Burgos , Pza. Misael Bañuelos s/n , 09001 Burgos , Spain
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20
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Hu B, Zhou P, Rao K, Yang J, Li L, Yan S, Yu F. Copper-catalyzed direct oxidative C(sp 2 )-H α -sulfenylation of enaminones with disulfides or thiophenols: Synthesis of polyfunctionalized aminothioalkenes. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.079] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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21
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Ge Y, van der Kamp M, Malaisree M, Liu D, Liu Y, Mulholland AJ. Identification of the quinolinedione inhibitor binding site in Cdc25 phosphatase B through docking and molecular dynamics simulations. J Comput Aided Mol Des 2017; 31:995-1007. [PMID: 28994029 DOI: 10.1007/s10822-017-0073-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 09/26/2017] [Indexed: 02/02/2023]
Abstract
Cdc25 phosphatase B, a potential target for cancer therapy, is inhibited by a series of quinones. The binding site and mode of quinone inhibitors to Cdc25B remains unclear, whereas this information is important for structure-based drug design. We investigated the potential binding site of NSC663284 [DA3003-1 or 6-chloro-7-(2-morpholin-4-yl-ethylamino)-quinoline-5, 8-dione] through docking and molecular dynamics simulations. Of the two main binding sites suggested by docking, the molecular dynamics simulations only support one site for stable binding of the inhibitor. Binding sites in and near the Cdc25B catalytic site that have been suggested previously do not lead to stable binding in 50 ns molecular dynamics (MD) simulations. In contrast, a shallow pocket between the C-terminal helix and the catalytic site provides a favourable binding site that shows high stability. Two similar binding modes featuring protein-inhibitor interactions involving Tyr428, Arg482, Thr547 and Ser549 are identified by clustering analysis of all stable MD trajectories. The relatively flexible C-terminal region of Cdc25B contributes to inhibitor binding. The binding mode of NSC663284, identified through MD simulation, likely prevents the binding of protein substrates to Cdc25B. The present results provide useful information for the design of quinone inhibitors and their mechanism of inhibition.
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Affiliation(s)
- Yushu Ge
- School of Life Sciences, University of Science and Technology of China, Hefei, 230027, People's Republic of China.
- Centre of Computational Chemistry, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK.
| | - Marc van der Kamp
- Centre of Computational Chemistry, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
- School of Biochemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Maturos Malaisree
- Centre of Computational Chemistry, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK
| | - Dan Liu
- School of Life Sciences, University of Science and Technology of China, Hefei, 230027, People's Republic of China
| | - Yi Liu
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education) & College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, People's Republic of China.
| | - Adrian J Mulholland
- Centre of Computational Chemistry, School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK.
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22
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Lazo JS, McQueeney KE, Sharlow ER. New Approaches to Difficult Drug Targets: The Phosphatase Story. SLAS DISCOVERY 2017; 22:1071-1083. [DOI: 10.1177/2472555217721142] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The drug discovery landscape is littered with promising therapeutic targets that have been abandoned because of insufficient validation, historical screening failures, and inferior chemotypes. Molecular targets once labeled as “undruggable” or “intractable” are now being more carefully interrogated, and while they remain challenging, many target classes are appearing more approachable. Protein tyrosine phosphatases represent an excellent example of a category of molecular targets that have emerged as druggable, with several small molecules and antibodies recently becoming available for further development. In this review, we examine some of the diseases that are associated with protein tyrosine phosphatase dysfunction and use some prototype contemporary strategies to illustrate approaches that are being used to identify small molecules targeting this enzyme class.
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Affiliation(s)
- John S. Lazo
- Department of Pharmacology, Fiske Drug Discovery Laboratory, University of Virginia, Charlottesville, VA, USA
| | - Kelley E. McQueeney
- Department of Pharmacology, Fiske Drug Discovery Laboratory, University of Virginia, Charlottesville, VA, USA
| | - Elizabeth R. Sharlow
- Department of Pharmacology, Fiske Drug Discovery Laboratory, University of Virginia, Charlottesville, VA, USA
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23
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CDC25 Inhibition in Acute Myeloid Leukemia-A Study of Patient Heterogeneity and the Effects of Different Inhibitors. Molecules 2017; 22:molecules22030446. [PMID: 28287460 PMCID: PMC6155411 DOI: 10.3390/molecules22030446] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 03/01/2017] [Accepted: 03/06/2017] [Indexed: 12/15/2022] Open
Abstract
Cell division cycle 25 (CDC25) protein phosphatases regulate cell cycle progression through the activation of cyclin-dependent kinases (CDKs), but they are also involved in chromatin modulation and transcriptional regulation. CDC25 inhibition is regarded as a possible therapeutic strategy for the treatment of human malignancies, including acute myeloid leukemia (AML). We investigated the in vitro effects of CDC25 inhibitors on primary human AML cells derived from 79 unselected patients in suspension cultures. Both the previously well-characterized CDC25 inhibitor NSC95397, as well as five other inhibitors (BN82002 and the novel small molecular compounds ALX1, ALX2, ALX3, and ALX4), only exhibited antiproliferative effects for a subset of patients when tested alone. These antiproliferative effects showed associations with differences in genetic abnormalities and/or AML cell differentiation. However, the responders to CDC25 inhibition could be identified by analysis of global gene expression profiles. The differentially expressed genes were associated with the cytoskeleton, microtubules, and cell signaling. The constitutive release of 28 soluble mediators showed a wide variation among patients and this variation was maintained in the presence of CDC25 inhibition. Finally, NSC95397 had no or only minimal effects on AML cell viability. In conclusion, CDC25 inhibition has antiproliferative effects on primary human AML cells for a subset of patients, and these patients can be identified by gene expression profiling.
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24
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Liu Y, Hu B, Zhang X. Copper Catalyzed Iodosulfenylation of Styrenes by Dual C-H Oxidative Functionalization. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600779] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yurong Liu
- College of Chemistry and Materials Engineering; Wenzhou University; Wenzhou Zhejiang 325027 China
| | - Bolun Hu
- College of Chemistry and Materials Engineering; Wenzhou University; Wenzhou Zhejiang 325027 China
| | - Xingguo Zhang
- College of Chemistry and Materials Engineering; Wenzhou University; Wenzhou Zhejiang 325027 China
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25
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Sarkis M, Miteva MA, Dasso Lang MC, Jaouen M, Sari MA, Galcéra MO, Ethève-Quelquejeu M, Garbay C, Bertho G, Braud E. Insights into the interaction of high potency inhibitor IRC-083864 with phosphatase CDC25. Proteins 2017; 85:593-601. [PMID: 28056492 DOI: 10.1002/prot.25236] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 12/05/2016] [Accepted: 12/18/2016] [Indexed: 01/11/2023]
Abstract
CDC25 phosphatases play a crucial role in cell cycle regulation. They have been found to be over-expressed in various human tumours and to be valuable targets for cancer treatment. Here, we report the first model of binding of the most potent CDC25 inhibitor to date, the bis-quinone IRC-083864, into CDC25B obtained by combining molecular modeling and NMR studies. Our study provides new insights into key interactions of the catalytic site inhibitor and CDC25B in the absence of any available experimental structure of CDC25 with a bound catalytic site inhibitor. The docking model reveals that IRC-083864 occupies both the active site and the inhibitor binding pocket of the CDC25B catalytic domain. NMR saturation transfer difference and WaterLOGSY data indicate the binding zones of the inhibitor and support the docking model. Probing interactions of analogues of the two quinone units of IRC-083864 with CDC25B demonstrate that IRC-083864 competes with each monomer. Proteins 2017; 85:593-601. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Manal Sarkis
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris Descartes, PRES Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, 45 rue des Saints-Pères, Paris, 75006, France
| | - Maria A Miteva
- Molécules Thérapeutiques in silico, INSERM U973, Université Paris Diderot, PRES Sorbonne Paris Cité, 35 rue Hélène Brion, Paris cedex 13, 75205, France
| | - Maria Chiara Dasso Lang
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris Descartes, PRES Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, 45 rue des Saints-Pères, Paris, 75006, France
| | - Maryse Jaouen
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris Descartes, PRES Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, 45 rue des Saints-Pères, Paris, 75006, France
| | - Marie-Agnès Sari
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris Descartes, PRES Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, 45 rue des Saints-Pères, Paris, 75006, France
| | | | - Mélanie Ethève-Quelquejeu
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris Descartes, PRES Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, 45 rue des Saints-Pères, Paris, 75006, France
| | - Christiane Garbay
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris Descartes, PRES Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, 45 rue des Saints-Pères, Paris, 75006, France
| | - Gildas Bertho
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris Descartes, PRES Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, 45 rue des Saints-Pères, Paris, 75006, France
| | - Emmanuelle Braud
- Laboratoire de Chimie et Biochimie Pharmacologiques et Toxicologiques, CNRS UMR8601, Université Paris Descartes, PRES Sorbonne Paris Cité, Faculté des Sciences Fondamentales et Biomédicales, 45 rue des Saints-Pères, Paris, 75006, France
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26
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Ni S, Zhang L, Zhang W, Mei H, Han J, Pan Y. Synthesis of Trisubstituted Vinyl Sulfides via Oxidative Thiolation Initiated Cascade Reaction of Alkynoates with Thiols. J Org Chem 2016; 81:9470-9475. [DOI: 10.1021/acs.joc.6b01770] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shengyang Ni
- School
of Chemistry and Chemical Engineering, State Key laboratory of Coordination
Chemistry, Nanjing University, Nanjing 210093, China
| | - Lijun Zhang
- School
of Chemistry and Chemical Engineering, State Key laboratory of Coordination
Chemistry, Nanjing University, Nanjing 210093, China
| | - Wenzhong Zhang
- School
of Chemistry and Chemical Engineering, State Key laboratory of Coordination
Chemistry, Nanjing University, Nanjing 210093, China
| | - Haibo Mei
- School
of Chemistry and Chemical Engineering, State Key laboratory of Coordination
Chemistry, Nanjing University, Nanjing 210093, China
| | - Jianlin Han
- School
of Chemistry and Chemical Engineering, State Key laboratory of Coordination
Chemistry, Nanjing University, Nanjing 210093, China
- MaAnShan High-Tech Research Institute of Nanjing University, MaAnShan 238200, China
| | - Yi Pan
- School
of Chemistry and Chemical Engineering, State Key laboratory of Coordination
Chemistry, Nanjing University, Nanjing 210093, China
- MaAnShan High-Tech Research Institute of Nanjing University, MaAnShan 238200, China
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27
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Sun J, Zhang-Negrerie D, Du Y. Oxidative Coupling of Enamines and DisulfidesviaTetrabutylammonium Iodide/tert-Butyl Hydroperoxide-Mediated Intermolecular Oxidative C(sp2)S Bond Formation Under Transition Metal-Free Conditions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501099] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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28
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Reikvam H, Hauge M, Brenner AK, Hatfield KJ, Bruserud Ø. Emerging therapeutic targets for the treatment of human acute myeloid leukemia (part 1) - gene transcription, cell cycle regulation, metabolism and intercellular communication. Expert Rev Hematol 2015; 8:299-313. [PMID: 25835070 DOI: 10.1586/17474086.2015.1032935] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Human acute myeloid leukemia is a heterogeneous disease and the effect of therapeutic targeting of specific molecular mechanisms will probably vary between patient subsets. Cell cycle regulators are among the emerging targets (e.g., aurora and polo-like kinases, cyclin-dependent kinases). Inhibition of communication between acute myeloid leukemia and stromal cells is also considered; among the most promising of these strategies are inhibition of hedgehog-initiated, CXCR4-CXCL12 and Axl-Gas6 signaling. Finally, targeting of energy and protein metabolism is considered, the most promising strategy being inhibition of isocitrate dehydrogenase in patients with IDH mutations. Thus, several strategies are now considered, and a major common challenge for all of them is to clarify how they should be combined with each other or with conventional chemotherapy, and whether their use should be limited to certain subsets of patients.
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Affiliation(s)
- Håkon Reikvam
- Department of Medicine, Haukeland University Hospital, Bergen, Norway
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29
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Tu HY, Hu BL, Deng CL, Zhang XG. Copper-mediated stereospecific C–H oxidative sulfenylation of terminal alkenes with disulfides. Chem Commun (Camb) 2015; 51:15558-61. [DOI: 10.1039/c5cc06250k] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A new copper and iodine-mediated C–H oxidative sulfenylation of olefins with diaryl disulfides for the stereospecific synthesis of vinyl thioether is described.
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Affiliation(s)
- Hai-Yong Tu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- China
| | - Bo-Lun Hu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- China
| | - Chen-Liang Deng
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- China
| | - Xing-Guo Zhang
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- China
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30
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Brenner AK, Reikvam H, Lavecchia A, Bruserud Ø. Therapeutic targeting the cell division cycle 25 (CDC25) phosphatases in human acute myeloid leukemia--the possibility to target several kinases through inhibition of the various CDC25 isoforms. Molecules 2014; 19:18414-47. [PMID: 25397735 PMCID: PMC6270710 DOI: 10.3390/molecules191118414] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 10/28/2014] [Accepted: 11/02/2014] [Indexed: 01/26/2023] Open
Abstract
The cell division cycle 25 (CDC25) phosphatases include CDC25A, CDC25B and CDC25C. These three molecules are important regulators of several steps in the cell cycle, including the activation of various cyclin-dependent kinases (CDKs). CDC25s seem to have a role in the development of several human malignancies, including acute myeloid leukemia (AML); and CDC25 inhibition is therefore considered as a possible anticancer strategy. Firstly, upregulation of CDC25A can enhance cell proliferation and the expression seems to be controlled through PI3K-Akt-mTOR signaling, a pathway possibly mediating chemoresistance in human AML. Loss of CDC25A is also important for the cell cycle arrest caused by differentiation induction of malignant hematopoietic cells. Secondly, high CDC25B expression is associated with resistance against the antiproliferative effect of PI3K-Akt-mTOR inhibitors in primary human AML cells, and inhibition of this isoform seems to reduce AML cell line proliferation through effects on NFκB and p300. Finally, CDC25C seems important for the phenotype of AML cells at least for a subset of patients. Many of the identified CDC25 inhibitors show cross-reactivity among the three CDC25 isoforms. Thus, by using such cross-reactive inhibitors it may become possible to inhibit several molecular events in the regulation of cell cycle progression and even cytoplasmic signaling, including activation of several CDKs, through the use of a single drug. Such combined strategies will probably be an advantage in human cancer treatment.
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Affiliation(s)
- Annette K Brenner
- Section for Hematology, Institute of Clinical Science, Faculty of Medicine and Dentistry, University of Bergen, Bergen, 5021, Norway
| | - Håkon Reikvam
- Section for Hematology, Institute of Clinical Science, Faculty of Medicine and Dentistry, University of Bergen, Bergen, 5021, Norway
| | - Antonio Lavecchia
- "Drug Discovery" Laboratory, Department of Pharmacy, University of Naples Federico II, Naples 80131, Italy
| | - Øystein Bruserud
- Section for Hematology, Institute of Clinical Science, Faculty of Medicine and Dentistry, University of Bergen, Bergen, 5021, Norway.
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31
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Kim JY, Lee EJ, Ryu CJ, Park H. Anticancer Activities of Cdc25 Phosphatase Inhibitors in the Proliferation of Human Lung Cancer Cells. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.1.319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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Yang L, Wen Q, Xiao F, Deng GJ. Silver-mediated oxidative vinylic C–H bond sulfenylation of enamides with disulfides. Org Biomol Chem 2014; 12:9519-23. [DOI: 10.1039/c4ob01970a] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A silver-mediated oxidative vinylic C–H bond sulfenylation of enamides was developed. This method is compatible with diaryl and dialkyl disulfides to deliver the biologically precious chalcogenated olefins efficiently. A plausible non-chain radical mechanism was proposed for understanding this novel sulfenylation based on the mechanistic studies.
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Affiliation(s)
- Luo Yang
- Key Laboratory for Environmentally Friendly Chemistry and Application of the Ministry of Education
- College of Chemistry
- Xiangtan University
- Hunan, China
| | - Qing Wen
- Key Laboratory for Environmentally Friendly Chemistry and Application of the Ministry of Education
- College of Chemistry
- Xiangtan University
- Hunan, China
| | - Fuhong Xiao
- Key Laboratory for Environmentally Friendly Chemistry and Application of the Ministry of Education
- College of Chemistry
- Xiangtan University
- Hunan, China
| | - Guo-Jun Deng
- Key Laboratory for Environmentally Friendly Chemistry and Application of the Ministry of Education
- College of Chemistry
- Xiangtan University
- Hunan, China
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33
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Tsuchiya A, Asanuma M, Hirai G, Oonuma K, Muddassar M, Nishizawa E, Koyama Y, Otani Y, Zhang KYJ, Sodeoka M. CDC25A-inhibitory RE derivatives bind to pocket adjacent to the catalytic site. MOLECULAR BIOSYSTEMS 2013; 9:1026-34. [DOI: 10.1039/c3mb00003f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Abstract
An important issue in developing protein-ligand docking methods is how to incorporate receptor flexibility. Consideration of receptor flexibility using an ensemble of precompiled receptor conformations or by employing an effectively enlarged binding pocket has been reported to be useful. However, direct consideration of receptor flexibility during energy optimization of the docked conformation has been less popular because of the large increase in computational complexity. In this paper, we present a new docking program called GalaxyDock that accounts for the flexibility of preselected receptor side-chains by global optimization of an AutoDock-based energy function trained for flexible side-chain docking. This method was tested on 3 sets of protein-ligand complexes (HIV-PR, LXRβ, cAPK) and a diverse set of 16 proteins that involve side-chain conformational changes upon ligand binding. The cross-docking tests show that the performance of GalaxyDock is higher or comparable to previous flexible docking methods tested on the same sets, increasing the binding conformation prediction accuracy by 10%-60% compared to rigid-receptor docking. This encouraging result suggests that this powerful global energy optimization method may be further extended to incorporate larger magnitudes of receptor flexibility in the future. The program is available at http://galaxy.seoklab.org/softwares/galaxydock.html .
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Affiliation(s)
- Woong-Hee Shin
- Department of Chemistry, Seoul National University, Seoul 151-747, Republic of Korea
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35
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Martin KR, Narang P, Xu Y, Kauffman AL, Petit J, Xu HE, Meurice N, MacKeigan JP. Identification of small molecule inhibitors of PTPσ through an integrative virtual and biochemical approach. PLoS One 2012. [PMID: 23185579 PMCID: PMC3502291 DOI: 10.1371/journal.pone.0050217] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
PTPσ is a dual-domain receptor type protein tyrosine phosphatase (PTP) with physiologically important functions which render this enzyme an attractive biological target. Specifically, loss of PTPσ has been shown to elicit a number of cellular phenotypes including enhanced nerve regeneration following spinal cord injury (SCI), chemoresistance in cultured cancer cells, and hyperactive autophagy, a process critical to cell survival and the clearance of pathological aggregates in neurodegenerative diseases. Owing to these functions, modulation of PTPσ may provide therapeutic value in a variety of contexts. Furthermore, a small molecule inhibitor would provide utility in discerning the cellular functions and substrates of PTPσ. To develop such molecules, we combined in silico modeling with in vitro phosphatase assays to identify compounds which effectively inhibit the enzymatic activity of PTPσ. Importantly, we observed that PTPσ inhibition was frequently mediated by oxidative species generated by compounds in solution, and we further optimized screening conditions to eliminate this effect. We identified a compound that inhibits PTPσ with an IC50 of 10 µM in a manner that is primarily oxidation-independent. This compound favorably binds the D1 active site of PTPσ in silico, suggesting it functions as a competitive inhibitor. This compound will serve as a scaffold structure for future studies designed to build selectivity for PTPσ over related PTPs.
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Affiliation(s)
- Katie R. Martin
- Laboratory of Systems Biology, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Pooja Narang
- Mayo Clinic, Scottsdale, Arizona, United States of America
| | - Yong Xu
- Laboratory of Structural Sciences, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Audra L. Kauffman
- Laboratory of Systems Biology, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | - Joachim Petit
- Mayo Clinic, Scottsdale, Arizona, United States of America
| | - H. Eric Xu
- Laboratory of Structural Sciences, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
| | | | - Jeffrey P. MacKeigan
- Laboratory of Systems Biology, Van Andel Research Institute, Grand Rapids, Michigan, United States of America
- * E-mail:
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36
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Kubrycht J, Sigler K, Souček P. Virtual interactomics of proteins from biochemical standpoint. Mol Biol Int 2012; 2012:976385. [PMID: 22928109 PMCID: PMC3423939 DOI: 10.1155/2012/976385] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 05/18/2012] [Accepted: 05/18/2012] [Indexed: 12/24/2022] Open
Abstract
Virtual interactomics represents a rapidly developing scientific area on the boundary line of bioinformatics and interactomics. Protein-related virtual interactomics then comprises instrumental tools for prediction, simulation, and networking of the majority of interactions important for structural and individual reproduction, differentiation, recognition, signaling, regulation, and metabolic pathways of cells and organisms. Here, we describe the main areas of virtual protein interactomics, that is, structurally based comparative analysis and prediction of functionally important interacting sites, mimotope-assisted and combined epitope prediction, molecular (protein) docking studies, and investigation of protein interaction networks. Detailed information about some interesting methodological approaches and online accessible programs or databases is displayed in our tables. Considerable part of the text deals with the searches for common conserved or functionally convergent protein regions and subgraphs of conserved interaction networks, new outstanding trends and clinically interesting results. In agreement with the presented data and relationships, virtual interactomic tools improve our scientific knowledge, help us to formulate working hypotheses, and they frequently also mediate variously important in silico simulations.
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Affiliation(s)
- Jaroslav Kubrycht
- Department of Physiology, Second Medical School, Charles University, 150 00 Prague, Czech Republic
| | - Karel Sigler
- Laboratory of Cell Biology, Institute of Microbiology, Academy of Sciences of the Czech Republic, 142 20 Prague, Czech Republic
| | - Pavel Souček
- Toxicogenomics Unit, National Institute of Public Health, 100 42 Prague, Czech Republic
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Lavecchia A, Di Giovanni C, Pesapane A, Montuori N, Ragno P, Martucci NM, Masullo M, De Vendittis E, Novellino E. Discovery of new inhibitors of Cdc25B dual specificity phosphatases by structure-based virtual screening. J Med Chem 2012; 55:4142-58. [PMID: 22524450 DOI: 10.1021/jm201624h] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cell division cycle 25 (Cdc25) proteins are highly conserved dual specificity phosphatases that regulate cyclin-dependent kinases and represent attractive drug targets for anticancer therapies. To discover more potent and diverse inhibitors of Cdc25 biological activity, virtual screening was performed by docking 2.1 million compounds into the Cdc25B active site. An initial subset of top-ranked compounds was selected and assayed, and 15 were found to have enzyme inhibition activity at micromolar concentration. Among these, four structurally diverse inhibitors with a different inhibition profile were found to inhibit human MCF-7, PC-3, and K562 cancer cell proliferation and significantly affect the cell cycle progression. A subsequent hierarchical similarity search with the most active reversible Cdc25B inhibitor found led to the identification of an additional set of 19 ligands, three of which were confirmed as Cdc25B inhibitors with IC(50) values of 7.9, 4.2, and 9.9 μM, respectively.
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Affiliation(s)
- Antonio Lavecchia
- Dipartimento di Chimica Farmaceutica e Tossicologica, Drug Discovery Laboratory, Università di Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy.
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38
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Shin WH, Heo L, Lee J, Ko J, Seok C, Lee J. LigDockCSA: Protein-ligand docking using conformational space annealing. J Comput Chem 2011; 32:3226-32. [DOI: 10.1002/jcc.21905] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 06/17/2011] [Accepted: 07/06/2011] [Indexed: 11/12/2022]
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Butini S, Gemma S, Brindisi M, Borrelli G, Lossani A, Ponte AM, Torti A, Maga G, Marinelli L, La Pietra V, Fiorini I, Lamponi S, Campiani G, Zisterer DM, Nathwani SM, Sartini S, La Motta C, Da Settimo F, Novellino E, Focher F. Non-nucleoside inhibitors of human adenosine kinase: synthesis, molecular modeling, and biological studies. J Med Chem 2011; 54:1401-20. [PMID: 21319802 DOI: 10.1021/jm101438u] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Adenosine kinase (AK) catalyzes the phosphorylation of adenosine (Ado) to AMP by means of a kinetic mechanism in which the two substrates Ado and ATP bind the enzyme in a binary and/or ternary complex, with distinct protein conformations. Most of the described inhibitors have Ado-like structural motifs and are nonselective, and some of them (e.g., the tubercidine-like ligands) are characterized by a toxic profile. We have cloned and expressed human AK (hAK) and searched for novel non-substrate-like inhibitors. Our efforts to widen the structural diversity of AK inhibitors led to the identification of novel non-nucleoside, noncompetitive allosteric modulators characterized by a unique molecular scaffold. Among the pyrrolobenzoxa(thia)zepinones (4a-qq) developed, 4a was identified as a non-nucleoside prototype hAK inhibitor. 4a has proapoptotic efficacy, slight inhibition of short-term RNA synthesis, and cytostatic activity on tumor cell lines while showing low cytotoxicity and no significant adverse effects on short-term DNA synthesis in cells.
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Affiliation(s)
- Stefania Butini
- European Research Centre for Drug Discovery and Development, NatSynDrugs, Università di Siena, 53100 Siena, Italy
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40
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Abstract
Cdc25 phosphatases involved in cell cycle checkpoints are now active targets for the development of anti-cancer therapies. Rational drug design would certainly benefit from detailed structural information for Cdc25s. However, only apo- or sulfate-bound crystal structures of the Cdc25 catalytic domain have been described so far. Together with previously available crystalographic data, results from molecular dynamics simulations, bioinformatic analysis, and computer-generated conformational ensembles shown here indicate that the last 30-40 residues in the C-terminus of Cdc25B are partially unfolded or disordered in solution. The effect of C-terminal flexibility upon binding of two potent small molecule inhibitors to Cdc25B is then analyzed by using three structural models with variable levels of flexibility, including an equilibrium distributed ensemble of Cdc25B backbone conformations. The three Cdc25B structural models are used in combination with flexible docking, clustering, and calculation of binding free energies by the linear interaction energy approximation to construct and validate Cdc25B-inhibitor complexes. Two binding sites are identified on top and beside the Cdc25B active site. The diversity of interaction modes found increases with receptor flexibility. Backbone flexibility allows the formation of transient cavities or compact hydrophobic units on the surface of the stable, folded protein core that are unexposed or unavailable for ligand binding in rigid and densely packed crystal structures. The present results may help to speculate on the mechanisms of small molecule complexation to partially unfolded or locally disordered proteins.
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41
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Lavecchia A, Di Giovanni C, Novellino E. Inhibitors of Cdc25 phosphatases as anticancer agents: a patent review. Expert Opin Ther Pat 2010; 20:405-25. [PMID: 20166845 DOI: 10.1517/13543771003623232] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
IMPORTANCE OF THE FIELD The cell division cycle 25 (Cdc25) family of proteins are highly conserved dual specificity phosphatases that regulate cyclin-dependent kinases, the main gatekeepers of the eukaryotic cell division cycle. The three isoforms of Cdc25, including Cdc25A, Cdc25B and Cdc25C, appear to act on different cyclin-dependent kinase/cyclin complexes at different stages of the cell cycle. Overexpression of Cdc25A and/or Cdc25B, but not Cdc25C, has been detected in numerous cancers and is often correlated with a poor clinical prognosis. Thus, inhibition of these phosphatases may represent a promising therapeutic approach in oncology. AREAS COVERED IN THIS REVIEW The main focus of the present review is to describe the development of Cdc25 inhibitors over the years. We describe different compounds according to the decade of discovery and focus attention on molecules that were published in patents. WHAT THE READER WILL GAIN Insight into the most clinically relevant therapeutic Cdc25 analogues that have been published in over 40 patents over the past 19 years. TAKE HOME MESSAGE Some Cdc25 inhibitors have suppressed in vivo the growth of human tumor xenografts in animals; this confirmed the validity of using Cdc25 phosphatase inhibition as an anticancer strategy, but side effects and toxicity remain to be investigated.
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Affiliation(s)
- Antonio Lavecchia
- Università di Napoli Federico II, Facoltà di Farmacia, Dipartimento di Chimica Farmaceutica e Tossicologica, Drug Discovery Laboratory, Via D. Montesano 49, Napoli, 80131, Italy.
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42
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Abstract
Redox dysregulation originating from metabolic alterations and dependence on mitogenic and survival signaling through reactive oxygen species represents a specific vulnerability of malignant cells that can be selectively targeted by redox chemotherapeutics. This review will present an update on drug discovery, target identification, and mechanisms of action of experimental redox chemotherapeutics with a focus on pro- and antioxidant redox modulators now in advanced phases of preclinal and clinical development. Recent research indicates that numerous oncogenes and tumor suppressor genes exert their functions in part through redox mechanisms amenable to pharmacological intervention by redox chemotherapeutics. The pleiotropic action of many redox chemotherapeutics that involves simultaneous modulation of multiple redox sensitive targets can overcome cancer cell drug resistance originating from redundancy of oncogenic signaling and rapid mutation.Moreover, some redox chemotherapeutics may function according to the concept of synthetic lethality (i.e., drug cytotoxicity is confined to cancer cells that display loss of function mutations in tumor suppressor genes or upregulation of oncogene expression). The impressive number of ongoing clinical trials that examine therapeutic performance of novel redox drugs in cancer patients demonstrates that redox chemotherapy has made the crucial transition from bench to bedside.
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Affiliation(s)
- Georg T Wondrak
- Department of Pharmacology and Toxicology, College of Pharmacy, Arizona Cancer Center, University of Arizona, Tucson, Arizona, USA
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43
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Park H, Bahn YJ, Ryu SE. Structure-based de novo design and biochemical evaluation of novel Cdc25 phosphatase inhibitors. Bioorg Med Chem Lett 2009; 19:4330-4. [DOI: 10.1016/j.bmcl.2009.05.084] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2009] [Accepted: 05/20/2009] [Indexed: 11/15/2022]
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44
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Kolb S, Mondésert O, Goddard ML, Jullien D, Villoutreix BO, Ducommun B, Garbay C, Braud E. Development of novel thiazolopyrimidines as CDC25B phosphatase inhibitors. ChemMedChem 2009; 4:633-48. [PMID: 19212959 DOI: 10.1002/cmdc.200800415] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The development of CDC25 phosphatase inhibitors is an interesting approach toward new antitumor agents, as CDC25 play key roles in cell-cycle regulation and are overexpressed in numerous cancers. We previously reported a novel compound belonging to the thiazolopyrimidine family that inhibits CDC25 activity with an IC(50) value of 13 microM and displays cytotoxic properties against HeLa cells. Structural modifications were subsequently conducted on this new pharmacophore which led to a library of 45 thiazolopyrimidines. Regarding the in vitro effects, 14 compounds inhibit CDC25B with IC(50)<20 microM, with the most efficient inhibitor 44 improving the potency to 4.5 microM. Steady-state kinetics were performed and showed a mixed inhibition pattern for all tested compounds. Furthermore, 44 was able to revert the bypass of genotoxicity-induced G(2) arrest upon CDC25B overexpression, indicating that this compound targets the dual-specificity phosphatase in cultured cells. Finally, the cytotoxic activities of the compounds were determined against two human cancer cell lines. The results indicate that the prostatic LNCaP cell line is more sensitive to these derivatives than the pancreatic adenocarcinoma MiaPaCa-2 line. With its interesting enzymatic and cellular properties, compound 44 appears to be a promising CDC25B inhibitor for further development.
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45
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Park H, Li M, Choi J, Cho H, Ham SW. Structure-based virtual screening approach to identify novel classes of Cdc25B phosphatase inhibitors. Bioorg Med Chem Lett 2009; 19:4372-5. [PMID: 19500977 DOI: 10.1016/j.bmcl.2009.05.078] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2009] [Revised: 05/08/2009] [Accepted: 05/20/2009] [Indexed: 11/25/2022]
Abstract
Discovery of Cdc25B phosphatase inhibitors has been actively pursued with the aim to develop anticancer agents. We have been able to identify eight novel Cdc25B inhibitors by means of a computer-aided drug design protocol involving the virtual screening with docking simulations under consideration of the effects of ligand solvation in the binding free energy function. Structural features relevant to the interactions of the newly identified inhibitors with the active-site residues of Cdc25B are also discussed in detail.
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Affiliation(s)
- Hwangseo Park
- Department of Bioscience and Biotechnology, Sejong University, Seoul 143-747, Republic of Korea
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46
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Bakan A, Lazo JS, Wipf P, Brummond KM, Bahar I. Toward a molecular understanding of the interaction of dual specificity phosphatases with substrates: insights from structure-based modeling and high throughput screening. Curr Med Chem 2008; 15:2536-44. [PMID: 18855677 PMCID: PMC2764859 DOI: 10.2174/092986708785909003] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Dual-specificity phosphatases (DSPs) are important, but poorly understood, cell signaling enzymes that remove phosphate groups from tyrosine and serine/threonine residues on their substrate. Deregulation of DSPs has been implicated in cancer, obesity, diabetes, inflammation, and Alzheimer's disease. Due to their biological and biomedical significance, DSPs have increasingly become the subject of drug discovery high-throughput screening (HTS) and focused compound library development efforts. Progress in identifying selective and potent DSP inhibitors has, however, been restricted by the lack of sufficient structural data on inhibitor-bound DSPs. The shallow, almost flat, substrate binding sites in DSPs have been a major factor in hampering the rational design and the experimental development of active site inhibitors. Recent experimental and virtual HTS studies, as well as advances in molecular modeling, provide new insights into the potential mechanisms for substrate recognition and binding by this important class of enzymes. We present herein an overview of the progress, along with a brief description of applications to two types of DSPs: Cdc25 and MAP kinase phosphatase (MKP) family members. In particular, we focus on combined computational and experimental efforts for designing Cdc25B and MKP-1 inhibitors and understanding their mechanisms of interactions with their target proteins. These studies emphasize the utility of developing computational models and methods that meet the two major challenges currently faced in structure-based in silico design of lead compounds: the conformational flexibility of the target protein and the entropic contribution to the selection and stabilization of particular bound conformers.
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Affiliation(s)
- Ahmet Bakan
- Department of Computational Biology, School of Medicine, University of Pittsburgh, 3064 Biomedical Science Tower 3, 3501 Fifth Avenue, Pittsburgh, PA 15213, USA
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47
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Abstract
Proper control of cell cycle progression requires the functionality of a small family of activating phosphatases termed Cdc25, which have been implicated in cancer and Alzheimer's disease. These protein tyrosine phosphatases are therefore recognized as attractive molecular targets for small molecules. We review the rationale, approaches, progress and challenges for developing small molecule inhibitors of the Cdc25 family. A number of potential chemical probes are discussed and their characteristics are summarized.
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Affiliation(s)
- John S Lazo
- Department of Pharmacology and Chemical Biology, Drug Discovery Institute, University of Pittsburgh, Pittsburgh, PA 15260, USA.
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48
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Cao S, Murphy BT, Foster C, Lazo JS, Kingston DGI. Bioactivities of simplified adociaquinone B and naphthoquinone derivatives against Cdc25B, MKP-1, and MKP-3 phosphatases. Bioorg Med Chem 2008; 17:2276-81. [PMID: 19028102 DOI: 10.1016/j.bmc.2008.10.090] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2008] [Revised: 10/03/2008] [Accepted: 10/31/2008] [Indexed: 12/21/2022]
Abstract
Some simplified adociaquinone B analogs and a series of 1,4-naphthoquinone derivatives were synthesized and tested against the three enzymes Cdc25B, MKP-1, and MKP-3. Cdc25B and MKP-1 in particular are enzymes overexpressed in human cancer cells, and they represent potential molecular targets for novel cancer chemotherapeutic treatments. A number of analogs exhibited significant inhibitory activity against these enzymes, and the bioassay data in addition to structure-activity relationships of these compounds will be discussed.
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Affiliation(s)
- Shugeng Cao
- Department of Chemistry, Virginia Polytechnic Institute and State University, 3111 Hahn Hall, M/C 0212, Blacksburg, VA 24061, USA
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49
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Park H, Bahn YJ, Jung SK, Jeong DG, Lee SH, Seo I, Yoon TS, Kim SJ, Ryu SE. Discovery of novel Cdc25 phosphatase inhibitors with micromolar activity based on the structure-based virtual screening. J Med Chem 2008; 51:5533-41. [PMID: 18714978 DOI: 10.1021/jm701157g] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cdc25 phosphatases have been considered as attractive drug targets for anticancer therapy because of the correlation of their overexpression with a wide variety of cancers. We have been able to identify five novel Cdc25 phosphatase inhibitors with micromolar activity by means of a computer-aided drug design protocol involving the homology modeling of Cdc25A and the virtual screening with the automated AutoDock program implementing the effects of ligand solvation in the scoring function. Because the newly discovered inhibitors are structurally diverse and reveal a significant potency with IC 50 values lower than 10 microM, they can be considered for further development by structure-activity relationship studies or de novo design methods. The differences in binding modes of the identified inhibitors in the active sites of Cdc25A and B are discussed in detail.
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Affiliation(s)
- Hwangseo Park
- Department of Bioscience and Biotechnology, Sejong University, 98 Kunja-Dong, Kwangjin-Ku, Seoul 143-747, Korea.
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50
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Nanosecond molecular dynamics simulations of Cdc25B and its complex with a 1,4-naphthoquinone inhibitor: Implications for rational inhibitor design. J Mol Graph Model 2008; 27:13-9. [DOI: 10.1016/j.jmgm.2008.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2007] [Revised: 01/28/2008] [Accepted: 02/05/2008] [Indexed: 01/24/2023]
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