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Zhu X, Lv Y, Fan M, Guo J, Zhang Y, Gao B, Zhang C, Xie Y. Exploration of the novel phthalimide-hydroxypyridinone derivatives as multifunctional drug candidates against Alzheimer's disease. Bioorg Chem 2023; 141:106817. [PMID: 37690318 DOI: 10.1016/j.bioorg.2023.106817] [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: 05/30/2023] [Revised: 08/22/2023] [Accepted: 08/26/2023] [Indexed: 09/12/2023]
Abstract
A novel series of phthalimide-hydroxypyridinone derivatives were rationally designed and evaluated as potential anti-Alzheimer's disease (AD) agents. Bioactivity tests showed that all compounds displayed great iron ions-chelating activity (pFe3+ = 17.07-19.52), in addition to potent inhibition of human monoamine oxidase B (hMAO-B). Compound 11n emerged as the most effective anti-AD lead compound with a pFe3+ value of 18.51, along with selective hMAO-B inhibitory activity (IC50 = 0.79 ± 0.05 μM, SI > 25.3). The results of cytotoxicity assays demonstrated that 11n showed extremely weak toxicity in PC12 cell line at 50 μM. Additionally, compound 11n displayed a cytoprotective effect against H2O2-induced oxidative damage. Moreover, compound 11n exhibited ideal blood-brain barrier (BBB) permeability in the parallel artificial membrane permeation assay (PAMPA), and significantly improved scopolamine-induced cognitive and memory impairment in mice behavioral experiments. In conclusion, these favorable experimental results suggested compound 11n deserved further investigation as an anti-AD lead compound.
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Affiliation(s)
- Xi Zhu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, PR China
| | - Yangjing Lv
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, PR China
| | - Miaoliang Fan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, PR China
| | - Jianan Guo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, PR China
| | - Yujia Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, PR China
| | - Bianbian Gao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, PR China
| | - Changjun Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, PR China.
| | - Yuanyuan Xie
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, PR China; Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, PR China; Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, Key Laboratory of Pharmaceutical Engineering of Zhejiang Province, Hangzhou, PR China.
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2
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Zhang L, Chen R, Li X, Xu X, Xu Z, Cheng J, Wang Y, Li Y, Shao X, Li Z. Synthesis, Insecticidal Activities, and 3D-QASR of N-Pyridylpyrazole Amide Derivatives Containing a Phthalimide as Potential Ryanodine Receptor Activators. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:12651-12662. [PMID: 36134897 DOI: 10.1021/acs.jafc.2c03971] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
To develop potent and environment-friendly insecticides, novel N-pyridylpyrazole amide derivatives containing a phthalimide were designed and synthesized. The preliminary bioassay results showed that most of the target compounds exhibited good insecticidal activities. For oriental armyworm (Mythimna separata), compounds E5, E29, E30, and E33 displayed higher than 90% lethal rates at 25 mg L-1. In particular, compound E33 displayed 60% mortality at a lower concentration of 6.25 mg L-1. Besides, compound E33 also showed a 30% lethal rate at 5 mg L-1 against diamondback moth (DBM) (Plutella xylostella). Molecular docking between the most active compound E33 and DBM ryanodine receptor (RyR), comparative molecular field analysis (CoMFA), and density functional theory (DFT) calculations were conducted and discussed. Furthermore, according to vitro studies using a calcium imaging technique, compound E33 was a potent novel lead targeting insect RyR.
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Affiliation(s)
- Lu Zhang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Ruijia Chen
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaoyang Li
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Xiaoyong Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Zhiping Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Jiagao Cheng
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Yanli Wang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Yuxin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - XuSheng Shao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Zhong Li
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
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3
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Ash J, Huang H, Cordero P, Kang JY. Selective hydrolysis of phosphorus(V) compounds to form organophosphorus monoacids. Org Biomol Chem 2021; 19:6007-6014. [PMID: 34165127 DOI: 10.1039/d1ob00881a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An azide and transition metal-free method for the synthesis of elusive phosphonic, phosphinic, and phosphoric monoacids has been developed. Inert pentavalent P(v)-compounds (phosphonate, phosphinate, and phosphate) are activated by triflate anhydride (Tf2O)/pyridine system to form a highly reactive phosphoryl pyridinium intermediate that undergoes nucleophilic substitution with H2O to selectively deprotect one alkoxy group and form organophosphorus monoacids.
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Affiliation(s)
- Jeffrey Ash
- Department of Chemistry and Biochemistry, University of Nevada Las Vegas, 4505 S. Maryland Parkway, Las Vegas, Nevada 89154-4003, USA.
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Paula Cordero
- Department of Chemistry and Biochemistry, University of Nevada Las Vegas, 4505 S. Maryland Parkway, Las Vegas, Nevada 89154-4003, USA.
| | - Jun Yong Kang
- Department of Chemistry and Biochemistry, University of Nevada Las Vegas, 4505 S. Maryland Parkway, Las Vegas, Nevada 89154-4003, USA.
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4
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Pant R, Joshi A, Maiti P, Nand M, Pande V, Chandra S. Identification of potential Mycolyltransferase Ag85C inhibitors of Mycobacterium tuberculosis H37Rv via Virtual High Throughput Screening and Binding free energy studies. J Mol Graph Model 2020; 98:107584. [DOI: 10.1016/j.jmgm.2020.107584] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 03/06/2020] [Accepted: 03/09/2020] [Indexed: 10/24/2022]
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5
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Abdou MM. Synopsis of recent synthetic methods and biological applications of phosphinic acid derivatives. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131251] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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6
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Song L, Jiang YX, Zhang Z, Gui YY, Zhou XY, Yu DG. CO2 = CO + [O]: recent advances in carbonylation of C–H bonds with CO2. Chem Commun (Camb) 2020; 56:8355-8367. [DOI: 10.1039/d0cc00547a] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Carbon dioxide (CO2) is an ideal one-carbon source owing to its nontoxicity, abundance, availability, and recyclability.
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Affiliation(s)
- Lei Song
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Yuan-Xu Jiang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Zhen Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Yong-Yuan Gui
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Xiao-Yu Zhou
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Da-Gang Yu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
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7
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Adler P, Pons A, Li J, Heider J, Brutiu BR, Maulide N. Chemoselective Activation of Diethyl Phosphonates: Modular Synthesis of Biologically Relevant Phosphonylated Scaffolds. Angew Chem Int Ed Engl 2018; 57:13330-13334. [PMID: 30067301 PMCID: PMC6175129 DOI: 10.1002/anie.201806343] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/14/2018] [Indexed: 01/13/2023]
Abstract
Phosphonates have garnered considerable attention for years owing to both their singular biological properties and their synthetic potential. State-of-the-art methods for the preparation of mixed phosphonates, phosphonamidates, phosphonothioates, and phosphinates rely on harsh and poorly selective reaction conditions. We report herein a mild method for the modular preparation of phosphonylated derivatives, several of which exhibit interesting biological activities, that is based on chemoselective activation with triflic anhydride. This procedure enables flexible and even iterative substitution with a broad range of O, S, N, and C nucleophiles.
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Affiliation(s)
- Pauline Adler
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Amandine Pons
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Jing Li
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Jörg Heider
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Bogdan R Brutiu
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
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8
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Adler P, Pons A, Li J, Heider J, Brutiu BR, Maulide N. Chemoselektive Aktivierung von Diethylphosphonaten: modulare Synthese von biologisch relevanten phosphonylierten Grundgerüsten. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806343] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Pauline Adler
- Institut für Organische ChemieUniversität Wien Währinger Straße 38 1090 Wien Österreich
| | - Amandine Pons
- Institut für Organische ChemieUniversität Wien Währinger Straße 38 1090 Wien Österreich
| | - Jing Li
- Institut für Organische ChemieUniversität Wien Währinger Straße 38 1090 Wien Österreich
| | - Jörg Heider
- Institut für Organische ChemieUniversität Wien Währinger Straße 38 1090 Wien Österreich
| | - Bogdan R. Brutiu
- Institut für Organische ChemieUniversität Wien Währinger Straße 38 1090 Wien Österreich
| | - Nuno Maulide
- Institut für Organische ChemieUniversität Wien Währinger Straße 38 1090 Wien Österreich
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9
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Design, synthesis, and evaluation of novel l-phenylglycine derivatives as potential PPARγ lead compounds. Bioorg Med Chem 2018; 26:4153-4167. [PMID: 30001846 DOI: 10.1016/j.bmc.2018.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 06/13/2018] [Accepted: 07/04/2018] [Indexed: 12/19/2022]
Abstract
In accordance with the structural characteristics of thiazolidinedione drugs and highly bioactive tyrosine derivatives, we tentatively designed the l-phenylglycine derivatives TM1 and TM2 based on basic principles of drug design and then synthesized them. The in vitro screening of peroxisome proliferator-activated receptor gamma (PPARγ) activated activity, α-glucosidase inhibitory and dipeptidyl peptidase-4 inhibitory activities showed that the novel molecule M5 had efficient PPAR response element (PPRE) activated activity (PPRE relative activity 105.04% at 10 μg·mL-1 compared with the positive control pioglitazone, with 100% activity). Therefore, M5 was selected as the hit compound from which the TM3 and TM4 series of compounds were further designed and synthesized. Based on the PPRE relative activities of TM3 and TM4, we discovered another new molecule, TM4h, which had the strongest PPRE relative activity (120.42% at 10 μg·mL-1). In addition, the concentration-dependent activity of the highly active compounds was determined by assaying their half-maximal effective concentration (EC50) values. The molecular physical parameter calculation and the molecular toxicity prediction were used to theoretically evaluate the lead-likeness and safety of the active compounds. In conclusion, we identified a potential PPARγ lead molecule and developed a tangible strategy for antidiabetic drug development.
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10
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Song L, Cao GM, Zhou WJ, Ye JH, Zhang Z, Tian XY, Li J, Yu DG. Pd-catalyzed carbonylation of aryl C–H bonds in benzamides with CO2. Org Chem Front 2018. [DOI: 10.1039/c8qo00433a] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Herein, we report the first Pd-catalyzed carbonylation of unactivated aryl C–H bonds in benzamides under 1 atm of CO2 to directly afford important phthalimides.
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Affiliation(s)
- Lei Song
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Guang-Mei Cao
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Wen-Jun Zhou
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Jian-Heng Ye
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Zhen Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Xing-Yang Tian
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Jing Li
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Da-Gang Yu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
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11
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Meints LM, Poston AW, Piligian BF, Olson CD, Badger KS, Woodruff PJ, Swarts BM. Rapid One-step Enzymatic Synthesis and All-aqueous Purification of Trehalose Analogues. J Vis Exp 2017:54485. [PMID: 28287534 PMCID: PMC5351780 DOI: 10.3791/54485] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Chemically modified versions of trehalose, or trehalose analogues, have applications in biology, biotechnology, and pharmaceutical science, among other fields. For instance, trehalose analogues bearing detectable tags have been used to detect Mycobacterium tuberculosis and may have applications as tuberculosis diagnostic imaging agents. Hydrolytically stable versions of trehalose are also being pursued due to their potential for use as non-caloric sweeteners and bioprotective agents. Despite the appeal of this class of compounds for various applications, their potential remains unfulfilled due to the lack of a robust route for their production. Here, we report a detailed protocol for the rapid and efficient one-step biocatalytic synthesis of trehalose analogues that bypasses the problems associated with chemical synthesis. By utilizing the thermostable trehalose synthase (TreT) enzyme from Thermoproteus tenax, trehalose analogues can be generated in a single step from glucose analogues and uridine diphosphate glucose in high yield (up to quantitative conversion) in 15-60 min. A simple and rapid non-chromatographic purification protocol, which consists of spin dialysis and ion exchange, can deliver many trehalose analogues of known concentration in aqueous solution in as little as 45 min. In cases where unreacted glucose analogue still remains, chromatographic purification of the trehalose analogue product can be performed. Overall, this method provides a "green" biocatalytic platform for the expedited synthesis and purification of trehalose analogues that is efficient and accessible to non-chemists. To exemplify the applicability of this method, we describe a protocol for the synthesis, all-aqueous purification, and administration of a trehalose-based click chemistry probe to mycobacteria, all of which took less than 1 hour and enabled fluorescence detection of mycobacteria. In the future, we envision that, among other applications, this protocol may be applied to the rapid synthesis of trehalose-based probes for tuberculosis diagnostics. For instance, short-lived radionuclide-modified trehalose analogues (e.g., 18F-modified trehalose) could be used for advanced clinical imaging modalities such as positron emission tomography-computed tomography (PET-CT).
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Affiliation(s)
- Lisa M Meints
- Department of Chemistry and Biochemistry, Central Michigan University
| | - Anne W Poston
- Department of Chemistry and Biochemistry, Central Michigan University
| | - Brent F Piligian
- Department of Chemistry and Biochemistry, Central Michigan University
| | - Claire D Olson
- Department of Chemistry and Biochemistry, Central Michigan University
| | | | | | - Benjamin M Swarts
- Department of Chemistry and Biochemistry, Central Michigan University;
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12
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Heidari R, Rabiee-Faradonbeh M, Darban-Sarokhalil D, Alvandi A, Abdian N, Aryan E, Soleimani N, Gholipour A. Expression and Purification of the Recombinant Cytochrome P450 CYP141 Protein of Mycobacterium Tuberculosis as a Diagnostic Tool and Vaccine Production. IRANIAN RED CRESCENT MEDICAL JOURNAL 2015; 17:e23191. [PMID: 26380105 PMCID: PMC4568075 DOI: 10.5812/ircmj.23191v2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Revised: 12/27/2014] [Accepted: 03/15/2015] [Indexed: 12/02/2022]
Abstract
Background: Tuberculosis (TB) is regarded as a health problem worldwide, particularly in developing countries. Mycobacterium tuberculosis (M. tuberculosis) is the cause of this disease. Approximately two billion people worldwide are infected by M. tuberculosis and annually about two million individuals die in consequence. Forty million people are estimated to die because of M. tuberculosis over the next 25 years if the measures for controlling this infection are not extensively developed. In the vaccination field, BacillusCalmette–Guérin (BCG) is still the most effective vaccine but it shows no efficacy in adult pulmonary patients. One of the other problems regarding TB is its appropriate diagnosis. Objectives: In this experimental study, the recombinant cytochrome P450 CYP141 protein of M. tuberculosis was expressed and purified to be used as a vaccine candidate and diagnostic purpose in subsequent investigations. Materials and Methods: The optimization of the cytochrome P450 CYP141 protein expression was evaluated in different conditions. Then, this protein was purified with a resin column of nickel–nitrilotriacetic acid and investigated via Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis (SDS-PAGE) and Western Blotting. Results: The highest expression of the cytochrome P450 CYP141 protein was obtained by the addition of 1 mM of isopropyl β-D-1-thiogalactopyranoside (IPTG) to the bacterial culture grown to an optical density at 600 nm (OD600) of 0.6, 16 hours after induction. This protein was subsequently purified with a purification of higher than 80%. The results of Western Blotting indicated that the purified protein was specifically detected. Conclusions: In this experimental study, for the first time in Iran the expression and purification of this recombinant protein was done successfully. This recombinant protein could be used as a vaccine candidate and diagnostic purpose in subsequent investigations.
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Affiliation(s)
- Reza Heidari
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Shahrekord University of Medical Sciences, Shahrekord, IR Iran
| | | | - Davood Darban-Sarokhalil
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, IR Iran
| | - Amirhooshang Alvandi
- Department of Microbiology, Kermanshah University of Medical Sciences, Kermanshah, IR Iran
| | - Narges Abdian
- Cellular and Molecular Research Center, Shahrekord University of Medical Sciences, Shahrekord, IR Iran
| | - Ehsan Aryan
- Antimicrobial Resistance Research Center, Department of Medical Microbiology, Mashhad University of Medical Sciences, Mashhad, IR Iran
| | - Neda Soleimani
- Department of Pathology, Al-Zahra Hospital, Isfahan University of Medical Sciences, Isfahan, IR Iran
| | - Abolfazl Gholipour
- Department of Microbiology and Immunology, Cellular and Molecular Research Center, Shahrekord University of Medical Sciences, Shahrekord, IR Iran
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13
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Walmagh M, Zhao R, Desmet T. Trehalose Analogues: Latest Insights in Properties and Biocatalytic Production. Int J Mol Sci 2015; 16:13729-45. [PMID: 26084050 PMCID: PMC4490520 DOI: 10.3390/ijms160613729] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 06/09/2015] [Indexed: 12/23/2022] Open
Abstract
Trehalose (α-D-glucopyranosyl α-D-glucopyranoside) is a non-reducing sugar with unique stabilizing properties due to its symmetrical, low energy structure consisting of two 1,1-anomerically bound glucose moieties. Many applications of this beneficial sugar have been reported in the novel food (nutricals), medical, pharmaceutical and cosmetic industries. Trehalose analogues, like lactotrehalose (α-D-glucopyranosyl α-D-galactopyranoside) or galactotrehalose (α-D-galactopyranosyl α-D-galactopyranoside), offer similar benefits as trehalose, but show additional features such as prebiotic or low-calorie sweetener due to their resistance against hydrolysis during digestion. Unfortunately, large-scale chemical production processes for trehalose analogues are not readily available at the moment due to the lack of efficient synthesis methods. Most of the procedures reported in literature suffer from low yields, elevated costs and are far from environmentally friendly. "Greener" alternatives found in the biocatalysis field, including galactosidases, trehalose phosphorylases and TreT-type trehalose synthases are suggested as primary candidates for trehalose analogue production instead. Significant progress has been made in the last decade to turn these into highly efficient biocatalysts and to broaden the variety of useful donor and acceptor sugars. In this review, we aim to provide an overview of the latest insights and future perspectives in trehalose analogue chemistry, applications and production pathways with emphasis on biocatalysis.
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Affiliation(s)
- Maarten Walmagh
- Center for Industrial Biotechnology and Biocatalysis, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Ghent 9000, Belgium.
| | - Renfei Zhao
- Center for Industrial Biotechnology and Biocatalysis, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Ghent 9000, Belgium.
| | - Tom Desmet
- Center for Industrial Biotechnology and Biocatalysis, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Ghent 9000, Belgium.
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14
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Fang Y, Wang SY, Ji SJ. Synthesis of phthalimides through 1,3-dipolar cycloaddition of CO2 with isocyanides and arynes. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.02.051] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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15
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Urbanek BL, Wing DC, Haislop KS, Hamel CJ, Kalscheuer R, Woodruff PJ, Swarts BM. Chemoenzymatic synthesis of trehalose analogues: rapid access to chemical probes for investigating mycobacteria. Chembiochem 2014; 15:2066-70. [PMID: 25139066 DOI: 10.1002/cbic.201402288] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Indexed: 11/11/2022]
Abstract
Trehalose analogues are emerging as valuable tools for investigating Mycobacterium tuberculosis, but progress in this area is slow due to the difficulty in synthesizing these compounds. Here, we report a chemoenzymatic synthesis of trehalose analogues that employs the heat-stable enzyme trehalose synthase (TreT) from the hyperthermophile Thermoproteus tenax. By using TreT, various trehalose analogues were prepared quickly (1 h) in high yield (up to >99 % by HPLC) in a single step from readily available glucose analogues. To demonstrate the utility of this method in mycobacteria research, we performed a simple "one-pot metabolic labeling" experiment that accomplished probe synthesis, metabolic labeling, and imaging of M. smegmatis in a single day with only TreT and commercially available materials.
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Affiliation(s)
- Bailey L Urbanek
- Department of Chemistry, Central Michigan University, Mount Pleasant, MI 48859 (USA)
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16
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Wang T, Peng H, He H. Synthesis and Biological Activity ofO-Methyl Methyl 1-(Substituted Phenoxyacetoxy)-1-(thien-2-yl)methylphosphinates. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2143] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tao Wang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, and College of Chemistry; Central China Normal University; Wuhan People's Republic of China
| | - Hao Peng
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, and College of Chemistry; Central China Normal University; Wuhan People's Republic of China
| | - Hongwu He
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, and College of Chemistry; Central China Normal University; Wuhan People's Republic of China
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17
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Nobre A, Alarico S, Maranha A, Mendes V, Empadinhas N. The molecular biology of mycobacterial trehalose in the quest for advanced tuberculosis therapies. MICROBIOLOGY-SGM 2014; 160:1547-1570. [PMID: 24858083 DOI: 10.1099/mic.0.075895-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Trehalose is a natural glucose disaccharide identified in the 19th century in fungi and insect cocoons, and later across the three domains of life. In members of the genus Mycobacterium, which includes the tuberculosis (TB) pathogen and over 160 species of nontuberculous mycobacteria (NTM), many of which are opportunistic pathogens, trehalose has been an important focus of research over the last 60 years. It is a crucial player in the assembly and architecture of the remarkable mycobacterial cell envelope as an element of unique highly antigenic glycolipids, namely trehalose dimycolate ('cord factor'). Free trehalose has been detected in the mycobacterial cytoplasm and occasionally in oligosaccharides with unknown function. TB and NTM infection statistics and death toll, the decline in immune responses in the aging population, human immunodeficiency virus/AIDS or other debilitating conditions, and the proliferation of strains with different levels of resistance to the dated drugs in use, all merge into a serious public-health threat urging more effective vaccines, efficient diagnostic tools and new drugs. This review deals with the latest findings on mycobacterial trehalose biosynthesis, catabolism, processing and recycling, as well with the ongoing quest for novel trehalose-related mechanisms to be targeted by novel TB therapeutics. In this context, the drug-discovery pipeline has recently included new lead compounds directed toward trehalose-related targets highlighting the potential of these pathways to stem the tide of rising drug resistance.
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Affiliation(s)
- Ana Nobre
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Susana Alarico
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Ana Maranha
- Biosciences PhD Program, Department of Life Sciences, University of Coimbra, Coimbra, Portugal.,CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Vitor Mendes
- Department of Biochemistry, University of Cambridge, Cambridge, UK.,CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Nuno Empadinhas
- III/UC-Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal.,CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
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Wang T, Wang W, Peng H, He H. Synthesis and Biological Activity of 1-(Substituted phenoxyacetoxy)-1-(pyridin-2-yl or thien-2-yl)methylphosphonates. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.1944] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tao Wang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, and College of Chemistry; Central China Normal University; Wuhan People's Republic of China
| | - Wei Wang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, and College of Chemistry; Central China Normal University; Wuhan People's Republic of China
| | - Hao Peng
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, and College of Chemistry; Central China Normal University; Wuhan People's Republic of China
| | - Hongwu He
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, and College of Chemistry; Central China Normal University; Wuhan People's Republic of China
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19
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Peng H, Long Q, Deng X, He H. Synthesis and Herbicidal Activities of Lithium or Potassium Hydrogen 1-(Substituted Phenoxyacetoxy)Alkylphosphonates. PHOSPHORUS SULFUR 2013. [DOI: 10.1080/10426507.2013.797415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Hao Peng
- a The Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, and College of Chemistry, Central China Normal University , Wuhan , 430079 , P.R. China
| | - Qingwu Long
- a The Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, and College of Chemistry, Central China Normal University , Wuhan , 430079 , P.R. China
| | - Xiaoyan Deng
- a The Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, and College of Chemistry, Central China Normal University , Wuhan , 430079 , P.R. China
| | - Hongwu He
- a The Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, and College of Chemistry, Central China Normal University , Wuhan , 430079 , P.R. China
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20
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Long Q, Deng X, Gao Y, Xie H, Peng H, He H. Synthesis and Herbicidal Activities of Sodium Hydrogen 1-(Substituted Phenoxyacetoxy)Alkylphosphonates. PHOSPHORUS SULFUR 2013. [DOI: 10.1080/10426507.2012.717147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Qingwu Long
- a The Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan , P. R. China
| | - Xiaoyan Deng
- a The Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan , P. R. China
| | - Yujiao Gao
- a The Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan , P. R. China
| | - Huayong Xie
- a The Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan , P. R. China
| | - Hao Peng
- a The Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan , P. R. China
| | - Hongwu He
- a The Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan , P. R. China
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21
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Asymmetric aza-Michael additions of 4-nitrophthalimide to nitroalkenes and preliminary study of the products for herbicidal activities. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.01.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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22
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Gahoi S, Mandal RS, Ivanisenko N, Shrivastava P, Jain S, Singh AK, Raghunandanan MV, Kanchan S, Taneja B, Mandal C, Ivanisenko VA, Kumar A, Kumar R, Open Source Drug Discovery Consorti, Ramachandran S. Computational screening for new inhibitors ofM. tuberculosismycolyltransferases antigen 85 group of proteins as potential drug targets. J Biomol Struct Dyn 2013; 31:30-43. [DOI: 10.1080/07391102.2012.691343] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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23
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Ibrahim DA, Boucau J, Lajiness DH, Veleti SK, Trabbic KR, Adams SS, Ronning DR, Sucheck SJ. Design, synthesis, and X-ray analysis of a glycoconjugate bound to Mycobacterium tuberculosis antigen 85C. Bioconjug Chem 2012. [PMID: 23190459 DOI: 10.1021/bc3004342] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tuberculosis (TB) is a global health threat with nearly 500 000 new cases of multidrug-resistant TB estimated to occur every year, so new drugs are desperately needed. A number of current antimycobacterial drugs work by interfering with the biosynthesis of key components of the mycolylarabinogalactan (mAG). In light of this observation, other enzymes involved in the synthesis of the mAG should also serve as targets for antimycobacterial drug development. One potential target is the Antigen 85 (Ag85) complex, a family of mycolyltransferases that are responsible for the transfer of mycolic acids from trehalose monomycolate (TMM) to the arabinogalactan. Virtual thiophenyl-arabinoside conjugates were docked to antigen Ag85C (PDB code: 1va5 ) using Glide. Compounds with good docking scores were synthesized by a Gewald synthesis followed by linking to 5-thioarabinofuranosides. The resulting thiophenyl-thioarabinofuranosides were assayed for inhibition of mycoyltransferase activity using a 4-methylumbelliferyl butyrate fluorescence assay. The conjugates showed K(i) values ranging from 18.2 to 71.0 μM. The most potent inhibitor was soaked into crystals of Mycobacterium tuberculosis antigen 85C and the structure of the complex determined. The X-ray structure shows the compound bound within the active site of the enzyme with the thiophene moiety positioned in the putative α-chain binding site of TMM and the arabinofuranoside moiety within the known carbohydrate-binding site as exhibited for the Ag85B-trehalose crystal structure. Unexpectedly, no specific hydrogen bonding interactions are being formed between the arabinofuranoside and the carbohydrate-binding site of the active site suggesting that the binding of the arabinoside within this structure is driven by shape complementarily between the arabinosyl moiety and the carbohydrate binding site.
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Affiliation(s)
- Diaa A Ibrahim
- National Organization for Drug Control & Research, Cairo, Gizaa, Egypt
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24
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Favrot L, Ronning DR. Targeting the mycobacterial envelope for tuberculosis drug development. Expert Rev Anti Infect Ther 2012; 10:1023-36. [PMID: 23106277 PMCID: PMC3571691 DOI: 10.1586/eri.12.91] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The bacterium that causes tuberculosis, Mycobacterium tuberculosis, possesses a rather unique outer membrane composed largely of lipids that possess long-chain and branched fatty acids, called mycolic acids. These lipids form a permeability barrier that prevents entry of many environmental solutes, thereby making these bacteria acid-fast and able to survive extremely hostile surroundings. Antitubercular drugs must penetrate this layer to reach their target. This review highlights drug development efforts that have added to the slowly growing tuberculosis drug pipeline, identified new enzyme activities to target with drugs and increased the understanding of important biosynthetic pathways for mycobacterial outer membrane and cell wall core assembly. In addition, a portion of this review looks at discovery efforts aimed at weakening this barrier to decrease mycobacterial virulence, decrease fitness in the host or enhance the efficacy of the current drug repertoire by disrupting the permeability barrier.
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Affiliation(s)
- Lorenza Favrot
- Department of Chemistry, University of Toledo, Toledo, OH 43606, USA
| | - Donald R Ronning
- Department of Chemistry, University of Toledo, Toledo, OH 43606, USA
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Warrier T, Tropis M, Werngren J, Diehl A, Gengenbacher M, Schlegel B, Schade M, Oschkinat H, Daffe M, Hoffner S, Eddine AN, Kaufmann SHE. Antigen 85C inhibition restricts Mycobacterium tuberculosis growth through disruption of cord factor biosynthesis. Antimicrob Agents Chemother 2012; 56:1735-43. [PMID: 22290959 PMCID: PMC3318338 DOI: 10.1128/aac.05742-11] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Accepted: 01/04/2012] [Indexed: 11/20/2022] Open
Abstract
The antigen 85 (Ag85) protein family, consisting of Ag85A, -B, and -C, is vital for Mycobacterium tuberculosis due to its role in cell envelope biogenesis. The mycoloyl transferase activity of these proteins generates trehalose dimycolate (TDM), an envelope lipid essential for M. tuberculosis virulence, and cell wall arabinogalactan-linked mycolic acids. Inhibition of these enzymes through substrate analogs hinders growth of mycobacteria, but a link to mycolic acid synthesis has not been established. In this study, we characterized a novel inhibitor of Ag85C, 2-amino-6-propyl-4,5,6,7-tetrahydro-1-benzothiophene-3-carbonitrile (I3-AG85). I3-AG85 was isolated from a panel of four inhibitors that exhibited structure- and dose-dependent inhibition of M. tuberculosis division in broth culture. I3-AG85 also inhibited M. tuberculosis survival in infected primary macrophages. Importantly, it displayed an identical MIC against the drug-susceptible H37Rv reference strain and a panel of extensively drug-resistant/multidrug-resistant M. tuberculosis strains. Nuclear magnetic resonance analysis indicated binding of I3-AG85 to Ag85C, similar to its binding to the artificial substrate octylthioglucoside. Quantification of mycolic acid-linked lipids of the M. tuberculosis envelope showed a specific blockade of TDM synthesis. This was accompanied by accumulation of trehalose monomycolate, while the overall mycolic acid abundance remained unchanged. Inhibition of Ag85C activity also disrupted the integrity of the M. tuberculosis envelope. I3-AG85 inhibited the division of and reduced TDM synthesis in an M. tuberculosis strain deficient in Ag85C. Our results indicate that Ag85 proteins are promising targets for novel antimycobacterial drug design.
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Affiliation(s)
- Thulasi Warrier
- Department of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Marielle Tropis
- Institute of Pharmacology and Structural Biology, CNRS, and University of Toulouse (Toulouse III), Toulouse, France
| | - Jim Werngren
- Swedish Institute for Communicable Disease Control, Solna, Sweden
| | - Anne Diehl
- NMR Group, Leibniz Institut für Molekulare Pharmakologie, Berlin, Germany
| | - Martin Gengenbacher
- Department of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Brigitte Schlegel
- NMR Group, Leibniz Institut für Molekulare Pharmakologie, Berlin, Germany
| | - Markus Schade
- AstraZeneca Ltd., DECS Biophysics, Macclesfield, United Kingdom
| | - Hartmut Oschkinat
- NMR Group, Leibniz Institut für Molekulare Pharmakologie, Berlin, Germany
| | - Mamadou Daffe
- Institute of Pharmacology and Structural Biology, CNRS, and University of Toulouse (Toulouse III), Toulouse, France
| | - Sven Hoffner
- Swedish Institute for Communicable Disease Control, Solna, Sweden
| | - Ali Nasser Eddine
- Department of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
| | - Stefan H. E. Kaufmann
- Department of Immunology, Max Planck Institute for Infection Biology, Berlin, Germany
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26
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Scheich C, Szabadka Z, Vértessy B, Pütter V, Grolmusz V, Schade M. Discovery of novel MDR-Mycobacterium tuberculosis inhibitor by new FRIGATE computational screen. PLoS One 2011; 6:e28428. [PMID: 22164290 PMCID: PMC3229595 DOI: 10.1371/journal.pone.0028428] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Accepted: 11/08/2011] [Indexed: 11/19/2022] Open
Abstract
With 1.6 million casualties annually and 2 billion people being infected, tuberculosis is still one of the most pressing healthcare challenges. Here we report on the new computational docking algorithm FRIGATE which unites continuous local optimization techniques (conjugate gradient method) with an inherently discrete computational approach in forcefield computation, resulting in equal or better scoring accuracies than several benchmark docking programs. By utilizing FRIGATE for a virtual screen of the ZINC library against the Mycobacterium tuberculosis (Mtb) enzyme antigen 85C, we identified novel small molecule inhibitors of multiple drug-resistant Mtb, which bind in vitro to the catalytic site of antigen 85C.
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Affiliation(s)
| | - Zoltán Szabadka
- Department of Computer Science, Eötvös University, Budapest, Hungary
- Uratim Ltd., Budapest, Hungary
| | - Beáta Vértessy
- Institute of Enzymology, Hungarian Academy of Science, Budapest, Hungary
- Department of Applied Biotechnology, University of Technology and Economics, Budapest, Hungary
| | | | - Vince Grolmusz
- Department of Computer Science, Eötvös University, Budapest, Hungary
- Uratim Ltd., Budapest, Hungary
- * E-mail: (VG); (MS)
| | - Markus Schade
- Combinature Biopharm AG, Berlin, Germany
- * E-mail: (VG); (MS)
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27
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Backus KM, Boshoff HL, Barry CS, Boutureira O, Patel MK, D’Hooge F, Lee SS, Via LE, Tahlan K, Barry CE, Davis BG. Uptake of unnatural trehalose analogs as a reporter for Mycobacterium tuberculosis. Nat Chem Biol 2011; 7:228-35. [PMID: 21378984 PMCID: PMC3157484 DOI: 10.1038/nchembio.539] [Citation(s) in RCA: 175] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Accepted: 02/01/2011] [Indexed: 01/19/2023]
Abstract
The detection of tuberculosis currently relies upon insensitive and unspecific techniques; newer diagnostics would ideally co-opt specific bacterial processes to provide real-time readouts. The trehalose mycolyltransesterase enzymes (antigens 85A, 85B and 85C (Ag85A, Ag85B, Ag85C)) serve as essential mediators of cell envelope function and biogenesis in Mycobacterium tuberculosis. Through the construction of a systematically varied sugar library, we show here that Ag85 enzymes have exceptionally broad substrate specificity. This allowed exogenously added synthetic probes to be specifically incorporated into M. tuberculosis growing in vitro and within macrophages. Even bulky substituents, such as a fluorescein-containing trehalose probe (FITC-trehalose), were incorporated by growing bacilli, thereby producing fluorescent bacteria; microscopy revealed selective labeling of poles and membrane. Addition of FITC-trehalose to M. tuberculosis-infected macrophages allowed selective, sensitive detection of M. tuberculosis within infected mammalian macrophages. These studies suggest that analogs of trehalose may prove useful as probes of function and for other imaging modalities.
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Affiliation(s)
- Keriann M Backus
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
- Tuberculosis Research Section, Laboratory of Clinical Infectious Diseases, US National Institute of Allergy and Infectious Disease, Bethesda, Maryland, USA
| | - Helena l Boshoff
- Tuberculosis Research Section, Laboratory of Clinical Infectious Diseases, US National Institute of Allergy and Infectious Disease, Bethesda, Maryland, USA
| | - Conor S Barry
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
| | - Omar Boutureira
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
| | - Mitul K Patel
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
| | - François D’Hooge
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
| | - Seung Seo Lee
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
| | - Laura E Via
- Tuberculosis Research Section, Laboratory of Clinical Infectious Diseases, US National Institute of Allergy and Infectious Disease, Bethesda, Maryland, USA
| | - Kapil Tahlan
- Tuberculosis Research Section, Laboratory of Clinical Infectious Diseases, US National Institute of Allergy and Infectious Disease, Bethesda, Maryland, USA
| | - Clifton E Barry
- Tuberculosis Research Section, Laboratory of Clinical Infectious Diseases, US National Institute of Allergy and Infectious Disease, Bethesda, Maryland, USA
| | - Benjamin G Davis
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford, UK
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Scheich C, Puetter V, Schade M. Novel Small Molecule Inhibitors of MDR Mycobacterium tuberculosis by NMR Fragment Screening of Antigen 85C. J Med Chem 2010; 53:8362-7. [DOI: 10.1021/jm100993z] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Markus Schade
- Combinature Biopharm AG, Robert-Roessle-Strasse 10, 13125 Berlin, Germany
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29
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Biological Activity of Aminophosphonic Acids and Their Short Peptides. TOPICS IN HETEROCYCLIC CHEMISTRY 2009. [DOI: 10.1007/7081_2008_14] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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30
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Ghosh S, Tiwari P, Pandey S, Misra AK, Chaturvedi V, Gaikwad A, Bhatnagar S, Sinha S. Synthesis and evaluation of antitubercular activity of glycosyl thio- and sulfonyl acetamide derivatives. Bioorg Med Chem Lett 2008; 18:4002-5. [DOI: 10.1016/j.bmcl.2008.06.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2008] [Revised: 05/08/2008] [Accepted: 06/03/2008] [Indexed: 10/22/2022]
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Synthesis of methyl 5-S-alkyl-5-thio-D-arabinofuranosides and evaluation of their antimycobacterial activity. Bioorg Med Chem 2008; 16:5672-82. [PMID: 18450455 DOI: 10.1016/j.bmc.2008.03.062] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2008] [Revised: 03/22/2008] [Accepted: 03/25/2008] [Indexed: 11/22/2022]
Abstract
The emergence of drug resistant tuberculosis necessitates a search for new antimycobacterial compounds. The antigen 85 (ag85) complex is a family of mycolyl transferases involved in the synthesis of trehalose-6,6'-dimycolate and the mycolated hexasaccharide motif found at the terminus of the arabinogalactan in mycobacterium. Enzymes involved in the synthesis of cell wall structures like these are potential targets for the development of new antiinfectives. To potentially inhibit the ag85 complex, methyl 5-S-alkyl-5-thio-arabinofuranoside analogues were designed based on docking studies with ag85C derived from Mycobacterium tuberculosis. The target arabinofuranosides were then synthesized and the antibacterial activity evaluated against Mycobacterium smegmatis ATCC 14468. Two of the compounds, 5-S-octyl-5-thio-alpha-d-arabinofuranoside (8) and 5-S-octyl-5-thio-beta-d-arabinofuranoside (11), showed MICs of 256 and 512microg/mL, respectively. Attempts to directly evaluate acyltransferase inhibitory activity of the arabinofuranosides against ag85C are also described. In conclusion, a new class of antimycobacterial arabinofuranosides has been discovered.
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Chopra I, Schofield C, Everett M, O'Neill A, Miller K, Wilcox M, Frère JM, Dawson M, Czaplewski L, Urleb U, Courvalin P. Treatment of health-care-associated infections caused by Gram-negative bacteria: a consensus statement. THE LANCET. INFECTIOUS DISEASES 2008; 8:133-9. [PMID: 18222164 DOI: 10.1016/s1473-3099(08)70018-5] [Citation(s) in RCA: 168] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
This consensus statement presents the conclusions of a group of academic and industrial experts who met in London in September, 2006, to consider the issues associated with the treatment of hospital infections caused by Gram-negative bacteria. The group discussed the severe clinical problems arising from the emergence of antibiotic resistance in these bacteria and the lack of new antibacterial agents to challenge the threat. The discovery of new drugs active against hospital-acquired Gram-negative bacteria is essential to prevent a future medical and social catastrophe. An important strategy to promote drug discovery will be the development of focused cooperations between academic institutions and small pharmaceutical companies.
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Affiliation(s)
- Ian Chopra
- Antimicrobial Research Centre and Research Institute of Molecular and Cellular Biology, University of Leeds, Leeds, UK.
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Frlan R, Gobec S, Kikelj D. Synthesis of ethyl 3-(hydroxyphenoxy)benzyl butylphosphonates as potential antigen 85C inhibitors. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.07.078] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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