1
|
Huang Z, Wei H, Huang Q, Wang J, Song G. t-BuOLi promoted regioselective N-thiolation of indoles with N-arylthio phthalimide. Org Biomol Chem 2024. [PMID: 38804048 DOI: 10.1039/d4ob00682h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The selective N-thiolation of indole substrates poses a challenge due to their diminished nucleophilicity at nitrogen. Herein, we present a novel method for the thiolation of the NH group in indole derivatives by using N-arylthio phthalimide as the sulfur source, t-BuOLi as the base and MeCN as the solvent. The process was successfully conducted under transition metal catalyst-free and room temperature conditions with a high product yield and a short reaction time. The developed protocol exhibited excellent regioselectivity and broad substrate tolerance in the preparation of N-thioindoles with diverse functional groups.
Collapse
Affiliation(s)
- Zhitian Huang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, PR China.
| | - Hong Wei
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, PR China.
| | - Qianyu Huang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, PR China.
| | - Jiayi Wang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, PR China.
| | - Gonghua Song
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, PR China.
| |
Collapse
|
2
|
Rebhi S, Basharat Z, Wei CR, Lebbal S, Najjaa H, Sadfi-Zouaoui N, Messaoudi A. Core proteome mediated subtractive approach for the identification of potential therapeutic drug target against the honeybee pathogen Paenibacillus larvae. PeerJ 2024; 12:e17292. [PMID: 38818453 PMCID: PMC11138523 DOI: 10.7717/peerj.17292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 04/02/2024] [Indexed: 06/01/2024] Open
Abstract
Background & Objectives American foulbrood (AFB), caused by the highly virulent, spore-forming bacterium Paenibacillus larvae, poses a significant threat to honey bee brood. The widespread use of antibiotics not only fails to effectively combat the disease but also raises concerns regarding honey safety. The current computational study was attempted to identify a novel therapeutic drug target against P. larvae, a causative agent of American foulbrood disease in honey bee. Methods We investigated effective novel drug targets through a comprehensive in silico pan-proteome and hierarchal subtractive sequence analysis. In total, 14 strains of P. larvae genomes were used to identify core genes. Subsequently, the core proteome was systematically narrowed down to a single protein predicted as the potential drug target. Alphafold software was then employed to predict the 3D structure of the potential drug target. Structural docking was carried out between a library of phytochemicals derived from traditional Chinese flora (n > 36,000) and the potential receptor using Autodock tool 1.5.6. Finally, molecular dynamics (MD) simulation study was conducted using GROMACS to assess the stability of the best-docked ligand. Results Proteome mining led to the identification of Ketoacyl-ACP synthase III as a highly promising therapeutic target, making it a prime candidate for inhibitor screening. The subsequent virtual screening and MD simulation analyses further affirmed the selection of ZINC95910054 as a potent inhibitor, with the lowest binding energy. This finding presents significant promise in the battle against P. larvae. Conclusions Computer aided drug design provides a novel approach for managing American foulbrood in honey bee populations, potentially mitigating its detrimental effects on both bee colonies and the honey industry.
Collapse
Affiliation(s)
- Sawsen Rebhi
- Université de Tunis-El Manar, Laboratoire de Mycologie, Pathologies et Biomarqueurs, Département de Biologie, Tunis, Tunisia
| | | | - Calvin R. Wei
- Department of Research and Development, Shing Huei Group, Taipei, Taiwan
| | - Salim Lebbal
- University of Khenchela, Department of Agricultural Sciences, Faculty of Nature and Life Sciences, Khenchela, Algeria
| | - Hanen Najjaa
- University of Gabes, Laboratory of Pastoral Ecosystem and Valorization of Spontaneous Plants and Associated Microorganisms, Institute of Arid Lands of Medenine, Medenine, Tunisia
| | - Najla Sadfi-Zouaoui
- Université de Tunis-El Manar, Laboratoire de Mycologie, Pathologies et Biomarqueurs, Département de Biologie, Tunis, Tunisia
| | - Abdelmonaem Messaoudi
- Université de Tunis-El Manar, Laboratoire de Mycologie, Pathologies et Biomarqueurs, Département de Biologie, Tunis, Tunisia
- Jendouba University, Higher Institute of Biotechnology of Beja, Beja, Tunisia
| |
Collapse
|
3
|
Ostroumova OS, Efimova SS. Lipid-Centric Approaches in Combating Infectious Diseases: Antibacterials, Antifungals and Antivirals with Lipid-Associated Mechanisms of Action. Antibiotics (Basel) 2023; 12:1716. [PMID: 38136750 PMCID: PMC10741038 DOI: 10.3390/antibiotics12121716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/05/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
One of the global challenges of the 21st century is the increase in mortality from infectious diseases against the backdrop of the spread of antibiotic-resistant pathogenic microorganisms. In this regard, it is worth targeting antibacterials towards the membranes of pathogens that are quite conservative and not amenable to elimination. This review is an attempt to critically analyze the possibilities of targeting antimicrobial agents towards enzymes involved in pathogen lipid biosynthesis or towards bacterial, fungal, and viral lipid membranes, to increase the permeability via pore formation and to modulate the membranes' properties in a manner that makes them incompatible with the pathogen's life cycle. This review discusses the advantages and disadvantages of each approach in the search for highly effective but nontoxic antimicrobial agents. Examples of compounds with a proven molecular mechanism of action are presented, and the types of the most promising pharmacophores for further research and the improvement of the characteristics of antibiotics are discussed. The strategies that pathogens use for survival in terms of modulating the lipid composition and physical properties of the membrane, achieving a balance between resistance to antibiotics and the ability to facilitate all necessary transport and signaling processes, are also considered.
Collapse
Affiliation(s)
- Olga S. Ostroumova
- Laboratory of Membrane and Ion Channel Modeling, Institute of Cytology, Russian Academy of Sciences, Tikhoretsky Ave. 4, St. Petersburg 194064, Russia;
| | | |
Collapse
|
4
|
Yu YH, Chen C, Ma JR, Zhang YY, Yan MF, Zhang WB, Hu Z, Wang HH, Ma JC. The FabA-FabB Pathway Is Not Essential for Unsaturated Fatty Acid Synthesis but Modulates Diffusible Signal Factor Synthesis in Xanthomonas campestris pv. campestris. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2023; 36:119-130. [PMID: 36515967 DOI: 10.1094/mpmi-09-22-0182-r] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Most bacteria use type II fatty acid synthesis (FAS) systems for synthesizing fatty acids, of which the conserved FabA-FabB pathway is considered to be crucial for unsaturated fatty acid (UFA) synthesis in gram-negative bacteria. Xanthomonas campestris pv. campestris, the phytopathogen of black rot disease in crucifers, produces higher quantities of UFAs under low-temperature conditions for increasing membrane fluidity. The fabA and fabB genes were identified in the X. campestris pv. campestris genome by BLAST analysis; however, the growth of the X. campestris pv. campestris fabA and fabB deletion mutants was comparable to that of the wild-type strain in nutrient and minimal media. The X. campestris pv. campestris ΔfabA and ΔfabB strains produced large quantities of UFAs and, altogether, these results indicated that the FabA-FabB pathway is not essential for growth or UFA synthesis in X. campestris pv. campestris. We also observed that the expression of X. campestris pv. campestris fabA and fabB restored the growth of the temperature-sensitive Escherichia coli fabA and fabB mutants CL104 and CY242, respectively, under non-permissive conditions. The in-vitro assays demonstrated that the FabA and FabB proteins of X. campestris pv. campestris catalyzed FAS. Our study also demonstrated that the production of diffusible signal factor family signals that mediate quorum sensing was higher in the X. campestris pv. campestris ΔfabA and ΔfabB strains and greatly reduced in the complementary strains, which exhibited reduced swimming motility and attenuated host-plant pathogenicity. [Formula: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY 4.0 International license.
Collapse
Affiliation(s)
- Yong-Hong Yu
- Guangdong Food and Drug Vocational College, Guangzhou, Guangdong 510520, China
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Cheng Chen
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Jian-Rong Ma
- Guangdong Food and Drug Vocational College, Guangzhou, Guangdong 510520, China
| | - Yuan-Yin Zhang
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Ming-Feng Yan
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Wen-Bin Zhang
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Zhe Hu
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Hai-Hong Wang
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Jin-Cheng Ma
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong 510642, China
| |
Collapse
|
5
|
Abstract
Antibiotic resistance is a serious public health concern, and new drugs are needed to ensure effective treatment of many bacterial infections. Bacterial type II fatty acid synthesis (FASII) is a vital aspect of bacterial physiology, not only for the formation of membranes but also to produce intermediates used in vitamin production. Nature has evolved a repertoire of antibiotics inhibiting different aspects of FASII, validating these enzymes as potential targets for new antibiotic discovery and development. However, significant obstacles have been encountered in the development of FASII antibiotics, and few FASII drugs have advanced beyond the discovery stage. Most bacteria are capable of assimilating exogenous fatty acids. In some cases they can dispense with FASII if fatty acids are present in the environment, making the prospects for identifying broad-spectrum drugs against FASII targets unlikely. Single-target, pathogen-specific FASII drugs appear the best option, but a major drawback to this approach is the rapid acquisition of resistance via target missense mutations. This complication can be mitigated during drug development by optimizing the compound design to reduce the potential impact of on-target missense mutations at an early stage in antibiotic discovery. The lessons learned from the difficulties in FASII drug discovery that have come to light over the last decade suggest that a refocused approach to designing FASII inhibitors has the potential to add to our arsenal of weapons to combat resistance to existing antibiotics.
Collapse
Affiliation(s)
- Christopher D Radka
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA; ,
| | - Charles O Rock
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA; ,
| |
Collapse
|
6
|
Zhou Y, Liang YQ, Wang XY, Chang HY, Hu SP, Sun J. Design, Synthesis and Antibacterial Activities of Novel Amide Derivatives Bearing Dioxygenated Rings as Potential β-Ketoacyl-acyl Carrier Protein Synthase III (FabH) Inhibitors. Chem Pharm Bull (Tokyo) 2022; 70:544-549. [DOI: 10.1248/cpb.c22-00090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yang Zhou
- School of Biological & Chemical Engineering, Zhejiang University of Science & Technology
| | - Yin-Qiu Liang
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences
| | - Xin-Yu Wang
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences
| | - Hao-Yun Chang
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Zhejiang Engineering Research Center for Biomedical Materials, Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences
| | - Su-Pei Hu
- Department of Medical Research, Hwa Mei Hospital, University of Chinese Academy of Sciences
| | - Juan Sun
- School of Biological & Chemical Engineering, Zhejiang University of Science & Technology
| |
Collapse
|
7
|
Yang S, Zhao G, Gao Y, Sun Y, Zhang G, Fan X, Li Y, Li Y. In-solution direct oxidative coupling for the integration of sulfur/selenium into DNA-encoded chemical libraries. Chem Sci 2022; 13:2604-2613. [PMID: 35340849 PMCID: PMC8890091 DOI: 10.1039/d1sc06268a] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/29/2022] [Indexed: 12/27/2022] Open
Abstract
Sulfur/selenium-containing electron-rich arenes (ERAs) exist in a wide range of both approved and investigational drugs with diverse pharmacological activities. These unique chemical structures and bioactive properties, if combined with the emerging DNA-encoded chemical library (DEL) technique, would facilitate drug and chemical probe discovery. However, it remains challenging, as there is no general DNA-compatible synthetic methodology available for the formation of C–S and C–Se bonds in aqueous solution. Herein, an in-solution direct oxidative coupling procedure that could efficiently integrate sulfur/selenium into the ERA under mild conditions is presented. This method features simple DNA-conjugated electron-rich arenes with a broad substrate scope and a transition-metal free process. Furthermore, this synthetic methodology, examined by a scale-up reaction test and late-stage precise modification in a mock peptide-like DEL synthesis, will enable its utility for the synthesis of sulfur/selenium-containing DNA-encoded libraries and the discovery of bioactive agents. DNA-compatible direct oxidative coupling using various sulfur/selenium sources has been achieved, featuring pre-functionalization-free substrates and transition metal-free condition.![]()
Collapse
Affiliation(s)
- Shilian Yang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China
| | - Guixian Zhao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China
| | - Yuting Gao
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China
| | - Yang Sun
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China
| | - Gong Zhang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China .,Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China
| | - Xiaohong Fan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China .,Pharmaceutical Department of Chongqing Three Gorges Central Hospital, Chongqing University Chongqing 404100 P. R. China
| | - Yangfeng Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China .,Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China
| | - Yizhou Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China .,Chemical Biology Research Center, School of Pharmaceutical Sciences, Chongqing University Chongqing 401331 P. R. China.,Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University Chongqing 400044 P. R. China
| |
Collapse
|
8
|
Mulina OM, Ilovaisky AI, Terent'ev AO. Sulfenylation of Indoles Mediated by Iodine and Its Compounds. ChemistrySelect 2021. [DOI: 10.1002/slct.202102227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Olga M. Mulina
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky Prospect 119991 Moscow Russian Federation
| | - Alexey I. Ilovaisky
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky Prospect 119991 Moscow Russian Federation
- All Russian Research Institute for Phytopathology B. Vyazyomy 143050 Moscow Region Russian Federation
| | - Alexander O. Terent'ev
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences 47 Leninsky Prospect 119991 Moscow Russian Federation
| |
Collapse
|
9
|
Yi L, Yang W, Sun L, Li J, Li X, Wang Y. Identification of a novel protective antigen, 3-oxoacyl-[acyl-carrier-protein] synthase II of Streptococcus equi ssp. zooepidemicus which confers protective effects. Comp Immunol Microbiol Infect Dis 2020; 71:101493. [PMID: 32447155 DOI: 10.1016/j.cimid.2020.101493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/15/2020] [Accepted: 04/21/2020] [Indexed: 11/17/2022]
Abstract
Streptococcus equi ssp. zooepidemicus (SEZ) is an important swine pathogen and responsible for a wide variety of infections in many animal species. FabF was a novel protein identified in the previous study. However, its protective efficacy remained to be evaluated. In this study, recombinant fabF of SEZ was expressed and showed a strong immunoreactivity with mini-pig convalescent sera. Study in mice revealed that the recombinant protein induced a marked antibody response and protected 80% of mice against SEZ infection. The hyperimmune sera against fabF could efficiently kill the bacteria in the phagocytosis test. In addition, it was also found that anti- fabF antibodies can significantly inhibit the formation of SEZ biofilm. These study suggest that fabF may represent immunogens of interest for vaccine development against SEZ infection.
Collapse
Affiliation(s)
- Li Yi
- College of Life Science, Luoyang Normal University, Luoyang, China; Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China
| | - Weiping Yang
- College of Life Science, Luoyang Normal University, Luoyang, China
| | - Liyun Sun
- Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China; College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
| | - Jinpeng Li
- Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China; College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
| | - Xiaokang Li
- Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China; College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
| | - Yang Wang
- Key Laboratory of Molecular Pathogen and Immunology of Animal of Luoyang, Luoyang, China; College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China.
| |
Collapse
|
10
|
Mondal S, Mahato K, Arora N, Kankane D, Singh UP, Ali S, Khan AH, Ghosh SS, Khan AT. Newly synthesized 3-sulfenylindole derivatives from 4-hydroxydithiocoumarin using an oxidative cross dehydrogenative coupling reaction (OCDCR): potential lead molecules for antiproliferative activity. Org Biomol Chem 2020; 18:4104-4113. [DOI: 10.1039/d0ob00054j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of 3-sulfenyl indole derivatives is achieved through oxidative cross-dehydrogenative coupling reaction. A few such newly synthesized compounds have also exhibited anti-proliferative activityviareactive oxygen species mediated cell damage.
Collapse
Affiliation(s)
- Santa Mondal
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- 781039 India
| | - Karuna Mahato
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- 781039 India
| | - Neha Arora
- Department of Biosciences and Bioengineering
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | - Dheerendra Kankane
- Department of Biosciences and Bioengineering
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | - Umed Pratap Singh
- Department of Biosciences and Bioengineering
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | - Saghir Ali
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- 781039 India
| | - Aftab Hossain Khan
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- 781039 India
| | - Siddhartha S. Ghosh
- Department of Biosciences and Bioengineering
- Indian Institute of Technology Guwahati
- Guwahati
- India
| | - Abu T. Khan
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati
- 781039 India
| |
Collapse
|
11
|
Discovery of novel oxoindolin derivatives as atypical dual inhibitors for DNA Gyrase and FabH. Bioorg Chem 2019; 93:103309. [PMID: 31585266 DOI: 10.1016/j.bioorg.2019.103309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/20/2019] [Accepted: 09/19/2019] [Indexed: 12/24/2022]
Abstract
The antibacterial agents and therapies today are facing serious problems such as drug resistance. Introducing dual inhibiting effect is a valid approach to solve this trouble and bring advantages including wide adaptability, favorable safety and superiority of combination. We started from potential DNA Gyrase inhibitory backbone isatin to develop oxoindolin derivatives as atypical dual Gyrase (major) and FabH (assistant) inhibitors via a two-round screening. Aiming at blocking both duplication (Gyrase) and survival (FabH), most of synthesized compounds indicated potency against Gyrase and some of them inferred favorable inhibitory effect on FabH. The top hit I18 suggested comparable Gyrase inhibitory activity (IC50 = 0.025 μM) and antibacterial effect with the positive control Novobiocin (IC50 = 0.040 μM). FabH inhibitory activity (IC50 = 5.20 μM) was also successfully introduced. Docking simulation hinted possible important interacted residues and binding patterns for both target proteins. Adequate Structure-Activity Relation discussions provide the future orientations of modification. With high potency, low initial toxicity and dual inhibiting strategy, advanced compounds with therapeutic methods will be developed for clinical application.
Collapse
|
12
|
Song M, Wang S, Wang Z, Fu Z, Zhou S, Cheng H, Liang Z, Deng X. Synthesis, antimicrobial and cytotoxic activities, and molecular docking studies of N-arylsulfonylindoles containing an aminoguanidine, a semicarbazide, and a thiosemicarbazide moiety. Eur J Med Chem 2019; 166:108-118. [DOI: 10.1016/j.ejmech.2019.01.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 10/19/2018] [Accepted: 01/15/2019] [Indexed: 01/01/2023]
|
13
|
Yu Y, Zhou Y, Song Z, Liang G. An efficient t-BuOK promoted C3-chalcogenylation of indoles with dichalcogenides. Org Biomol Chem 2019; 16:4958-4962. [PMID: 29947393 DOI: 10.1039/c8ob00948a] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A versatile and efficient method for the synthesis of 3-chalcogenyl-indoles from indoles and dichalcogenides employing t-BuOK as a promoter at room temperature has been achieved. The present protocol exhibited a broad functional group tolerance. Diverse 3-sulfenyl- and 3-selenyl-indoles were rapidly obtained in good to excellent yields with high regioselectivities. It is noteworthy that this transformation was applicable to N-protected and N-unprotected indoles, allowing N-deprotection and C3-chalcogenylation of indoles in one step.
Collapse
Affiliation(s)
- Yuanzu Yu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
| | | | | | | |
Collapse
|
14
|
Chamberlain CA, Hatch M, Garrett TJ. Metabolomic and lipidomic characterization of Oxalobacter formigenes strains HC1 and OxWR by UHPLC-HRMS. Anal Bioanal Chem 2019; 411:4807-4818. [PMID: 30740635 DOI: 10.1007/s00216-019-01639-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/15/2019] [Accepted: 01/23/2019] [Indexed: 12/30/2022]
Abstract
Diseases of oxalate, such as nephrolithiasis and primary hyperoxaluria, affect a significant portion of the US population and have limited treatment options. Oxalobacter formigenes, an obligate oxalotrophic bacterium in the mammalian intestine, has generated great interest as a potential probiotic or therapeutic treatment for oxalate-related conditions due to its ability to degrade both exogenous (dietary) and endogenous (metabolic) oxalate, lowering the risk of hyperoxaluria/hyperoxalemia. Although all oxalotrophs degrade dietary oxalate, Oxalobacter formigenes is the only species shown to initiate intestinal oxalate secretion to draw upon endogenous, circulating oxalate for consumption. Evidence suggests that Oxalobacter regulates oxalate transport proteins in the intestinal epithelium using an unidentified secreted bioactive compound, but the mechanism of this function remains elusive. It is essential to gain an understanding of the biochemical relationship between Oxalobacter and the host intestinal epithelium for this microbe to progress as a potential remedy for oxalate diseases. This investigation includes the first profiling of the metabolome and lipidome of Oxalobacter formigenes, specifically the human strain HC1 and rat strain OxWR, the only two strains shown thus far to initiate net intestinal oxalate secretion across native gut epithelia. This study was performed using untargeted and targeted metabolomics and lipidomics methodologies utilizing ultra-high-performance liquid chromatography-mass spectrometry. We report our findings that the metabolic profiles of these strains, although largely conserved, show significant differences in their expression of many compounds. Several strain-specific features were also detected. Discussed are trends in the whole metabolic profile as well as in individual features, both identified and unidentified. Graphical abstract ᅟ.
Collapse
Affiliation(s)
- Casey A Chamberlain
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Marguerite Hatch
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Timothy J Garrett
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, 32610, USA.
| |
Collapse
|
15
|
Equbal D, Singh R, Saima, Lavekar AG, Sinha AK. Synergistic Dual Role of [hmim]Br-ArSO2Cl in Cascade Sulfenylation–Halogenation of Indole: Mechanistic Insight into Regioselective C–S and C–S/C–X (X = Cl and Br) Bond Formation in One Pot. J Org Chem 2019; 84:2660-2675. [DOI: 10.1021/acs.joc.8b03097] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Danish Equbal
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 India
| | - Richa Singh
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 India
| | - Saima
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001 India
| | - Aditya G. Lavekar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001 India
| | - Arun K. Sinha
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031 India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110001 India
| |
Collapse
|
16
|
He XL, Majumder S, Wu J, Jin CD, Guo SR, Guo ZP, Yang M. Metal- and phosphine-free electrophilic vicinal chloro-alkylthiolation and trifluoromethylthiolation of indoles using sodium sulfinate in the presence of triphosgene. Org Chem Front 2019. [DOI: 10.1039/c9qo00350a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Efficient chloro-alkylthiolation and trifluoromethylthiolation of indole derivatives were developed.
Collapse
Affiliation(s)
- Xiu-ling He
- Department of Chemistry
- Lishui University
- Lishui
- People's Republic of China
| | - Swarup Majumder
- Department of Chemistry
- Lishui University
- Lishui
- People's Republic of China
| | - Jiang Wu
- Department of Chemistry
- Lishui University
- Lishui
- People's Republic of China
| | - Chen-di Jin
- Department of Chemistry
- Lishui University
- Lishui
- People's Republic of China
| | - Sheng-rong Guo
- Department of Chemistry
- Lishui University
- Lishui
- People's Republic of China
| | - Zhi-ping Guo
- Department of Chemistry
- Lishui University
- Lishui
- People's Republic of China
| | - Minghua Yang
- Department of Chemistry
- Lishui University
- Lishui
- People's Republic of China
| |
Collapse
|
17
|
Prochnow T, Maroneze A, Back DF, Jardim NS, Nogueira CW, Zeni G. Synthesis and anticholinesterase activity of 2-substituted-N-alkynylindoles. Org Biomol Chem 2018; 16:7926-7934. [PMID: 30311614 DOI: 10.1039/c8ob02165a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, we report a protocol for the preparation of 2-substituted-N-alkynylindoles via metalation of N-alkynylindoles followed by the capture of a 2-indolyl lithium intermediate with different electrophiles. The reactivity of the indoles prepared was also demonstrated through the reaction with CBr4/Ph3P for the preparation of 2-gem-dibromovinyl N-alkynylindoles and the hydrotelluration reaction of N-alkynylindoles, which led to vinylic tellurides. Some compounds prepared showed AChE inhibitory potential in the low micromolar range similar to that obtained with donepezil, a commercially available cholinesterase inhibitor.
Collapse
Affiliation(s)
- Thaís Prochnow
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria, Rio Grande do Sul 97105-900, Brasil.
| | | | | | | | | | | |
Collapse
|
18
|
Meng Q, Liang H, Gao H. Roles of multiple KASIII homologues of Shewanella oneidensis in initiation of fatty acid synthesis and in cerulenin resistance. Biochim Biophys Acta Mol Cell Biol Lipids 2018; 1863:1153-1163. [DOI: 10.1016/j.bbalip.2018.06.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/02/2018] [Accepted: 06/28/2018] [Indexed: 01/04/2023]
|
19
|
Hou J, Zheng H, Tzou WS, Cooper DR, Chruszcz M, Chordia MD, Kwon K, Grabowski M, Minor W. Differences in substrate specificity of V. cholerae FabH enzymes suggest new approaches for the development of novel antibiotics and biofuels. FEBS J 2018; 285:2900-2921. [PMID: 29917313 PMCID: PMC6105497 DOI: 10.1111/febs.14588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/31/2018] [Accepted: 06/15/2018] [Indexed: 01/14/2023]
Abstract
Vibrio cholerae, the causative pathogen of the life-threatening infection cholera, encodes two copies of β-ketoacyl-acyl carrier protein synthase III (vcFabH1 and vcFabH2). vcFabH1 and vcFabH2 are pathogenic proteins associated with fatty acid synthesis, lipid metabolism, and potential applications in biofuel production. Our biochemical assays characterize vcFabH1 as exhibiting specificity for acetyl-CoA and CoA thioesters with short acyl chains, similar to that observed for FabH homologs found in most gram-negative bacteria. vcFabH2 prefers medium chain-length acyl-CoA thioesters, particularly octanoyl-CoA, which is a pattern of specificity rarely seen in bacteria. Structural characterization of one vcFabH1 and six vcFabH2 structures determined in either apo form or in complex with acetyl-CoA/octanoyl-CoA indicate that the substrate-binding pockets of vcFabH1 and vcFabH2 are of different sizes, accounting for variations in substrate chain-length specificity. An unusual and unique feature of vcFabH2 is its C-terminal fragment that interacts with both the substrate-entrance loop and the dimer interface of the enzyme. Our discovery of the pattern of substrate specificity of both vcFabH1 and vcFabH2 can potentially aid the development of novel antibacterial agents against V. cholerae. Additionally, the distinctive substrate preference of FabH2 in V. cholerae and related facultative anaerobes conceivably make it an attractive component of genetically engineered bacteria used for commercial biofuel production.
Collapse
Affiliation(s)
- Jing Hou
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908-0736, USA
- Center for Structural Genomics of Infectious Diseases (CSGID) Consortium, USA
| | - Heping Zheng
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908-0736, USA
- Center for Structural Genomics of Infectious Diseases (CSGID) Consortium, USA
| | - Wen-Shyong Tzou
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908-0736, USA
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Taiwan
| | - David R. Cooper
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908-0736, USA
- Center for Structural Genomics of Infectious Diseases (CSGID) Consortium, USA
| | - Maksymilian Chruszcz
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
| | - Mahendra D. Chordia
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908-0736, USA
- Center for Structural Genomics of Infectious Diseases (CSGID) Consortium, USA
| | - Keehwan Kwon
- Center for Structural Genomics of Infectious Diseases (CSGID) Consortium, USA
- Infectious Diseases, J. Craig Venter Institute, Rockville, MD 20850, USA
| | - Marek Grabowski
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908-0736, USA
- Center for Structural Genomics of Infectious Diseases (CSGID) Consortium, USA
| | - Wladek Minor
- Department of Molecular Physiology and Biological Physics, University of Virginia, Charlottesville, VA 22908-0736, USA
- Center for Structural Genomics of Infectious Diseases (CSGID) Consortium, USA
| |
Collapse
|
20
|
Ekström AG, Kelly V, Marles-Wright J, Cockroft SL, Campopiano DJ. Structural evidence for the covalent modification of FabH by 4,5-dichloro-1,2-dithiol-3-one (HR45). Org Biomol Chem 2018; 15:6310-6313. [PMID: 28715001 PMCID: PMC5708339 DOI: 10.1039/c7ob01396e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We use mass spectrometry analysis and molecular modelling to show the established antimicrobial inhibitor 4,5-dichloro-1,2-dithiol-3-one (HR45) acts by forming a covalent adduct with the target β-ketoacyl-ACP synthase III (FabH). The 5-chloro substituent directs attack of the essential active site thiol (C112) via a Michael-type addition elimination reaction mechanism.
Collapse
Affiliation(s)
- Alexander G Ekström
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | | | | | | | | |
Collapse
|
21
|
Saima, Equbal D, Lavekar AG, Sinha AK. Cooperative catalysis by bovine serum albumin-iodine towards cascade oxidative coupling-C(sp(2))-H sulfenylation of indoles/hydroxyaryls with thiophenols on water. Org Biomol Chem 2018; 14:6111-8. [PMID: 27251465 DOI: 10.1039/c6ob00930a] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cooperative cascade catalysis by bovine serum albumin (BSA)-iodine allows for the first time the performance of C(sp(2))-H sulfenylation of indole from readily available thiophenol (-SH bond) via in situ generation/cleavage of disulfide (S-S bond) in air under aqueous conditions, whereas BSA or I2 individually do not permit this two step sequence to occur in the same pot towards C-S bond formation. This green cooperative protocol is extendable to sulfenylation of hydroxyaryls (i.e. 2-naphthol or 4-hydroxycoumarin) with diverse thiols (aryl/heteroaryl) without using any toxic metal catalysts, bases or oxidants, thus rendering the process environmentally and economically reliable. Further, the gram scale synthesis of a COX-2 inhibitor (3-(pyridin-2-ylthio)-1H-indole), regioselectivity and recyclability (up to four cycles) are the additional merits of this cooperative cascade bio-chemocatalytic (BSA-I2) protocol. Moreover, HPLC and ESI-MS provide powerful insights into the mechanistic aspects of the above cascade sulfenylation reaction.
Collapse
Affiliation(s)
- Saima
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India. and Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| | - Danish Equbal
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.
| | - Aditya G Lavekar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India.
| | - Arun K Sinha
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension, Sitapur Road, Lucknow 226031, India. and Academy of Scientific and Innovative Research (AcSIR), New Delhi, India
| |
Collapse
|
22
|
Chowdhury SR, Fadikar P, Ul Hoque I, Maity S. Catalyst-Free Regioselective Sulfenylation of Imidazoheterocycles with Sulfonyl Hydrazides in Water. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700670] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
| | - Pulak Fadikar
- Department of Applied Chemistry; Indian Institute of Technology (ISM); Dhanbad JH 826004 India
| | - Injamam Ul Hoque
- Department of Applied Chemistry; Indian Institute of Technology (ISM); Dhanbad JH 826004 India
| | - Soumitra Maity
- Department of Applied Chemistry; Indian Institute of Technology (ISM); Dhanbad JH 826004 India
| |
Collapse
|
23
|
Synthesis of 3-sulfenylindoles by Pd (II) nanoclusters confined within metal-organic framework fibers in aqueous solution. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2017.11.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
24
|
Santos-Merino M, Garcillán-Barcia MP, de la Cruz F. Engineering the fatty acid synthesis pathway in Synechococcus elongatus PCC 7942 improves omega-3 fatty acid production. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:239. [PMID: 30202434 PMCID: PMC6123915 DOI: 10.1186/s13068-018-1243-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 08/27/2018] [Indexed: 05/09/2023]
Abstract
BACKGROUND The microbial production of fatty acids has received great attention in the last few years as feedstock for the production of renewable energy. The main advantage of using cyanobacteria over other organisms is their ability to capture energy from sunlight and to transform CO2 into products of interest by photosynthesis, such as fatty acids. Fatty acid synthesis is a ubiquitous and well-characterized pathway in most bacteria. However, the activity of the enzymes involved in this pathway in cyanobacteria remains poorly explored. RESULTS To characterize the function of some enzymes involved in the saturated fatty acid synthesis in cyanobacteria, we genetically engineered Synechococcus elongatus PCC 7942 by overexpressing or deleting genes encoding enzymes of the fatty acid synthase system and tested the lipid profile of the mutants. These modifications were in turn used to improve alpha-linolenic acid production in this cyanobacterium. The mutant resulting from fabF overexpression and fadD deletion, combined with the overexpression of desA and desB desaturase genes from Synechococcus sp. PCC 7002, produced the highest levels of this omega-3 fatty acid. CONCLUSIONS The fatty acid composition of S. elongatus PCC 7942 can be significantly modified by genetically engineering the expression of genes coding for the enzymes involved in the first reactions of fatty acid synthesis pathway. Variations in fatty acid composition of S. elongatus PCC 7942 mutants did not follow the pattern observed in Escherichia coli derivatives. Some of these modifications can be used to improve omega-3 fatty acid production. This work provides new insights into the saturated fatty acid synthesis pathway and new strategies that might be used to manipulate the fatty acid content of cyanobacteria.
Collapse
Affiliation(s)
- María Santos-Merino
- Instituto de Biomedicina y Biotecnología de Cantabria (Universidad de Cantabria—Consejo Superior de Investigaciones Científicas), Santander, Cantabria Spain
| | - M. Pilar Garcillán-Barcia
- Instituto de Biomedicina y Biotecnología de Cantabria (Universidad de Cantabria—Consejo Superior de Investigaciones Científicas), Santander, Cantabria Spain
| | - Fernando de la Cruz
- Instituto de Biomedicina y Biotecnología de Cantabria (Universidad de Cantabria—Consejo Superior de Investigaciones Científicas), Santander, Cantabria Spain
| |
Collapse
|
25
|
Rahaman R, Barman P. Iodine-Catalyzed Mono- and Disulfenylation of Indoles in PEG400
through a Facile Microwave-Assisted Process. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701293] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Rajjakfur Rahaman
- Department of Chemistry; National Institute of Technology Silchar; 788010 Silchar India
| | - Pranjit Barman
- Department of Chemistry; National Institute of Technology Silchar; 788010 Silchar India
| |
Collapse
|
26
|
Guo W, Tan W, Zhao M, Tao K, Zheng LY, Wu Y, Chen D, Fan XL. Photocatalytic direct C–S bond formation: facile access to 3-sulfenylindoles via metal-free C-3 sulfenylation of indoles with thiophenols. RSC Adv 2017. [DOI: 10.1039/c7ra08086g] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
An efficient and convenient photocatalytic direct C-3 sulfenylation of indoles with thiophenols has been developed for the construction of 3-sulfenylations.
Collapse
Affiliation(s)
- Wei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Wen Tan
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Mingming Zhao
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Kailiang Tao
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Lv-Yin Zheng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Yongquan Wu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Deliang Chen
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| | - Xiao-Lin Fan
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province
- Gannan Normal University
- Ganzhou 341000
- China
| |
Collapse
|
27
|
Zhou Y, Yang YS, Song XD, Lu L, Zhu HL. Study of Schiff-Base-Derived with Dioxygenated Rings and Nitrogen Heterocycle as Potential β-Ketoacyl-acyl Carrier Protein Synthase III (FabH) Inhibitors. Chem Pharm Bull (Tokyo) 2017; 65:178-185. [DOI: 10.1248/cpb.c16-00772] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yang Zhou
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University
| | - Yu-Shun Yang
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University
| | - Xiao-Da Song
- School of Life Science and Technology, China Pharmaceutical University
| | - Liang Lu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University
| |
Collapse
|
28
|
Golzar N, Nowrouzi N, Abbasi M, Mehranpour AM. Cu-Catalyzed first direct access towards 3-sulfenylindoles from aryl halides. NEW J CHEM 2017. [DOI: 10.1039/c7nj01783a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The copper-catalyzed cross-coupling of indole derivatives with aryl halides in the presence of thiourea proceeds to give 3-sulfenylindoles in DMSO at 120 °C.
Collapse
Affiliation(s)
- N. Golzar
- Department of Chemistry
- Faculty of Sciences
- Persian Gulf University
- Bushehr
- Iran
| | - N. Nowrouzi
- Department of Chemistry
- Faculty of Sciences
- Persian Gulf University
- Bushehr
- Iran
| | - M. Abbasi
- Department of Chemistry
- Faculty of Sciences
- Persian Gulf University
- Bushehr
- Iran
| | - A. M. Mehranpour
- Department of Chemistry
- Faculty of Sciences
- Persian Gulf University
- Bushehr
- Iran
| |
Collapse
|
29
|
Marcella AM, Barb AW. A rapid fluorometric assay for the S-malonyltransacylase FabD and other sulfhydryl utilizing enzymes. J Biol Methods 2016; 3. [PMID: 27642613 PMCID: PMC5023282 DOI: 10.14440/jbm.2016.144] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The development of biorenewable chemicals will support green chemistry initiatives and supplement the catalog of starting materials available to the chemical industry. Bacterial fatty acid biosynthesis is being pursued as a source of protein catalysts to synthesize novel reduced carbon molecules in fermentation systems. The availability of methods to measure enzyme catalysis for native and engineered enzymes from this pathway remains a bottleneck because a simple quantitative enzyme assay for numerous enzymes does not exist. Here we present two variations of a fluorescence assay that is readily extendable to high-throughput screening and is appropriate for thiol consuming and generating enzymes including the E. coli enzymes malonyl-coenzyme A transacylase (FabD) and keto-acylsynthase III (FabH). We measured KM values of 60 ± 20 µM (acetyl-CoA) and 20 ± 10 µM (malonyl-ACP) and a kcat of 7.4–9.0 s-1 with FabH. Assays of FabD included a precipitation step to remove the thiol-containing substrate holo-ACP from the reaction product coenzyme-A to estimate reaction rates. Analysis of initial velocity measurements revealed KM values of 60 ± 20 µM (malonyl-CoA) and 40 ± 10 µM (holo-ACP) and a kcat of 2100–2600 s-1 for the FabD enzyme. Our data show similar results when compared to existing radioactive and continuous coupled assays in terms of sensitivity while providing the benefit of simplicity, scalability and repeatability. Fluorescence detection also eliminates the need for radioactive substrates traditionally used to assay these enzymes.
Collapse
Affiliation(s)
- Aaron M Marcella
- Roy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Molecular Biology Building, Room 4210, 2437 Pammel Drive, Iowa State University, Ames, IA 50011, USA
| | - Adam W Barb
- Roy J. Carver Department of Biochemistry, Biophysics and Molecular Biology, Molecular Biology Building, Room 4210, 2437 Pammel Drive, Iowa State University, Ames, IA 50011, USA
| |
Collapse
|
30
|
Iodine-catalyzed Direct Thiolation of Indoles with Thiols Leading to 3-Thioindoles Using Air as the Oxidant. Catal Letters 2016. [DOI: 10.1007/s10562-016-1798-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
31
|
Hostier T, Ferey V, Ricci G, Gomez Pardo D, Cossy J. TFA-promoted direct C-H sulfenylation at the C2 position of non-protected indoles. Chem Commun (Camb) 2016; 51:13898-901. [PMID: 26235226 DOI: 10.1039/c5cc05421d] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple, efficient and practical metal-free C-H sulfenylation process at the C2 position of non-protected indoles has been developed. 2-Thioindoles were obtained in moderate to high yields using stable and readily available N-(thio)succinimides at room temperature in the presence of TFA.
Collapse
Affiliation(s)
- Thomas Hostier
- Laboratoire de Chimie Organique, Institute of Chemistry, Biology and Innovation (CBI), UMR 8231, ESPCI ParisTech/CNRS/PSL Research University, 10 rue Vauquelin, 75231-Paris Cedex 05, France.
| | | | | | | | | |
Collapse
|
32
|
Yi S, Li M, Mo W, Hu X, Hu B, Sun N, Jin L, Shen Z. Metal-free, iodine-catalyzed regioselective sulfenylation of indoles with thiols. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.03.073] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
33
|
Zhang H, Bao X, Song Y, Qu J, Wang B. Iodine-catalysed versatile sulfenylation of indoles with thiophenols: controllable synthesis of mono- and bis-arylthioindoles. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.070] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
34
|
Structural Characterisation of the Beta-Ketoacyl-Acyl Carrier Protein Synthases, FabF and FabH, of Yersinia pestis. Sci Rep 2015; 5:14797. [PMID: 26469877 PMCID: PMC4606726 DOI: 10.1038/srep14797] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 07/14/2015] [Indexed: 01/14/2023] Open
Abstract
Yersinia pestis, the causative agent of bubonic, pneumonic, and septicaemic plague, remains a major public health threat, with outbreaks of disease occurring in China, Madagascar, and Peru in the last five years. The existence of multidrug resistant Y. pestis and the potential of this bacterium as a bioterrorism agent illustrates the need for new antimicrobials. The β-ketoacyl-acyl carrier protein synthases, FabB, FabF, and FabH, catalyse the elongation of fatty acids as part of the type II fatty acid biosynthesis (FASII) system, to synthesise components of lipoproteins, phospholipids, and lipopolysaccharides essential for bacterial growth and survival. As such, these enzymes are promising targets for the development of novel therapeutic agents. We have determined the crystal structures of the Y. pestis β-ketoacyl-acyl carrier protein synthases FabF and FabH, and compared these with the unpublished, deposited structure of Y. pestis FabB. Comparison of FabB, FabF, and FabH provides insights into the substrate specificities of these enzymes, and investigation of possible interactions with known β-ketoacyl-acyl carrier protein synthase inhibitors suggests FabB, FabF and FabH may be targeted simultaneously to prevent synthesis of the fatty acids necessary for growth and survival.
Collapse
|
35
|
Rahaman R, Devi N, Barman P. Metal free sulfenylation of active methylene compounds and indole: TBATB mediated synthesis. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.062] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
36
|
Shamim A, Abbasi SW, Azam SS. Structural and dynamical aspects of Streptococcus gordonii FabH through molecular docking and MD simulations. J Mol Graph Model 2015; 60:180-96. [PMID: 26059477 DOI: 10.1016/j.jmgm.2015.05.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 05/21/2015] [Accepted: 05/22/2015] [Indexed: 01/01/2023]
Abstract
β-Ketoacyl-ACP-synthase III (FabH or KAS III) has become an attractive target for the development of new antibacterial agents which can overcome the multidrug resistance. Unraveling the fatty acid biosynthesis (FAB) metabolic pathway and understanding structural coordinates of FabH will provide valuable insights to target Streptococcus gordonii for curing oral infection. In this study, we designed inhibitors against therapeutic target FabH, in order to block the FAB pathway. As compared to other targets, FabH has more interactions with other proteins, located on the leading strand with higher codon adaptation index value and associated with lipid metabolism category of COG. Current study aims to gain in silico insights into the structural and dynamical aspect of S. gordonii FabH via molecular docking and molecular dynamics (MD) simulations. The FabH protein is catalytically active in dimerization while it can lock in monomeric state. Current study highlights two residues Pro88 and Leu315 that are close to each other by dimerization. The active site of FabH is composed of the catalytic triad formed by residues Cys112, His249, and Asn279 in which Cys112 is involved in acetyl transfer, while His249 and Asn279 play an active role in decarboxylation. Docking analysis revealed that among the studied compounds, methyl-CoA disulfide has highest GOLD score (82.75), binding affinity (-11 kcal/mol) and exhibited consistently better interactions. During MD simulations, the FabH structure remained stable with the average RMSD value of 1.7 Å and 1.6 Å for undocked protein and docked complex, respectively. Further, crucial hydrogen bonding of the conserved catalytic triad for exhibiting high affinity between the FabH protein and ligand is observed by RDF analysis. The MD simulation results clearly demonstrated that binding of the inhibitor with S. gordonii FabH enhanced the structure and stabilized the dimeric FabH protein. Therefore, the inhibitor has the potential to become a lead compound.
Collapse
Affiliation(s)
- Amen Shamim
- Computational Biology Lab, National Center for Bioinformatics, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Sumra Wajid Abbasi
- Computational Biology Lab, National Center for Bioinformatics, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Syed Sikander Azam
- Computational Biology Lab, National Center for Bioinformatics, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| |
Collapse
|
37
|
Zou JF, Huang WS, Li L, Xu Z, Zheng ZJ, Yang KF, Xu LW. DMSO as oxidant and sulfenylating agent for metal-free oxidation and methylthiolation of alcohol-containing indoles. RSC Adv 2015. [DOI: 10.1039/c5ra03606b] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new methylthiolation protocol was successfully established for the synthesis of substituted indoles bearing 3-methylthioether moiety, in which new C–S bond and C=O bond were formed using dimethyl sulfoxide as the sulfur source under mild conditions.
Collapse
Affiliation(s)
- Jin-Feng Zou
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education (MOE)
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Wei-Sheng Huang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education (MOE)
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Li Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education (MOE)
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Zheng Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education (MOE)
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Zhan-Jiang Zheng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education (MOE)
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Ke-Fang Yang
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education (MOE)
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
| | - Li-Wen Xu
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education (MOE)
- Hangzhou Normal University
- Hangzhou 311121
- P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
| |
Collapse
|
38
|
FabH mutations confer resistance to FabF-directed antibiotics in Staphylococcus aureus. Antimicrob Agents Chemother 2014; 59:849-58. [PMID: 25403676 DOI: 10.1128/aac.04179-14] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Delineating the mechanisms for genetically acquired antibiotic resistance is a robust approach to target validation and anticipates the evolution of clinical drug resistance. This study defines a spectrum of mutations in fabH that render Staphylococcus aureus resistant to multiple natural products known to inhibit the elongation condensing enzyme (FabF) of bacterial type II fatty acid synthesis. Twenty independently isolated clones resistant to platensimycin, platencin, or thiolactomycin were isolated. All mutants selected against one antibiotic were cross-resistant to the other two antibiotics. Mutations were not detected in fabF, but the resistant strains harbored missense mutations in fabH. The altered amino acids clustered in and around the FabH active-site tunnel. The mutant FabH proteins were catalytically compromised based on the low activities of the purified enzymes, a fatty acid-dependent growth phenotype, and elevated expression of the fabHF operon in the mutant strains. Independent manipulation of fabF and fabH expression levels showed that the FabH/FabF activity ratio was a major determinant of antibiotic sensitivity. Missense mutations that reduce FabH activity are sufficient to confer resistance to multiple antibiotics that bind to the FabF acyl-enzyme intermediate in S. aureus.
Collapse
|
39
|
Li JR, Li DD, Wang RR, Sun J, Dong JJ, Du QR, Fang F, Zhang WM, Zhu HL. Design and synthesis of thiazole derivatives as potent FabH inhibitors with antibacterial activity. Eur J Med Chem 2014; 75:438-47. [DOI: 10.1016/j.ejmech.2013.11.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 11/02/2013] [Accepted: 11/14/2013] [Indexed: 10/25/2022]
|
40
|
Kumar PP, Reddy YD, Reddy CVR, Devi BR, Dubey P. Indium chloride: a versatile Lewis acid catalyst for the synthesis of 3-sulfenylindoles. J Sulphur Chem 2014. [DOI: 10.1080/17415993.2013.879870] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
41
|
Liu Y, Wang H, Zhang J, Wan JP, Wen C. Disulfides as efficient thiolating reagents enabling selective bis-sulfenylation of aryl dihalides under mild copper-catalyzed conditions. RSC Adv 2014. [DOI: 10.1039/c4ra02935f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Selective bis-sulfenylation reactions of aryl dihalides have been achieved by copper-catalyzed C–S coupling reactions under mild conditions of refluxing EtOH (80 °C).
Collapse
Affiliation(s)
- Yunyun Liu
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022, P. R China
| | - Hang Wang
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022, P. R China
| | - Jida Zhang
- College of Basic Medical Sciences
- Zhejiang Chinese Medical University
- Hangzhou 310053, P. R China
| | - Jie-Ping Wan
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022, P. R China
| | - Chengping Wen
- College of Basic Medical Sciences
- Zhejiang Chinese Medical University
- Hangzhou 310053, P. R China
| |
Collapse
|
42
|
Song H, Ao GZ, Li HQ. Novel FabH inhibitors: an updated article literature review (July 2012 to June 2013). Expert Opin Ther Pat 2013; 24:19-27. [DOI: 10.1517/13543776.2014.847091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
43
|
Wang Y, Ma S. Recent Advances in Inhibitors of Bacterial Fatty Acid Synthesis Type II (FASII) System Enzymes as Potential Antibacterial Agents. ChemMedChem 2013; 8:1589-608. [DOI: 10.1002/cmdc.201300209] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2013] [Revised: 06/30/2013] [Indexed: 12/25/2022]
|
44
|
Parsons JB, Rock CO. Bacterial lipids: metabolism and membrane homeostasis. Prog Lipid Res 2013; 52:249-76. [PMID: 23500459 PMCID: PMC3665635 DOI: 10.1016/j.plipres.2013.02.002] [Citation(s) in RCA: 287] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Revised: 02/27/2013] [Accepted: 02/28/2013] [Indexed: 11/29/2022]
Abstract
Membrane lipid homeostasis is a vital facet of bacterial cell physiology. For decades, research in bacterial lipid synthesis was largely confined to the Escherichia coli model system. This basic research provided a blueprint for the biochemistry of lipid metabolism that has largely defined the individual steps in bacterial fatty acid and phospholipids synthesis. The advent of genomic sequencing has revealed a surprising amount of diversity in the genes, enzymes and genetic organization of the components responsible for bacterial lipid synthesis. Although the chemical steps in fatty acid synthesis are largely conserved in bacteria, there are surprising differences in the structure and cofactor requirements for the enzymes that perform these reactions in Gram-positive and Gram-negative bacteria. This review summarizes how the explosion of new information on the diversity of biochemical and genetic regulatory mechanisms has impacted our understanding of bacterial lipid homeostasis. The potential and problems of developing therapeutics that block pathogen phospholipid synthesis are explored and evaluated. The study of bacterial lipid metabolism continues to be a rich source for new biochemistry that underlies the variety and adaptability of bacterial life styles.
Collapse
Affiliation(s)
- Joshua B Parsons
- Department of Infectious Diseases, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA
| | | |
Collapse
|
45
|
Ramamoorthy D, Turos E, Guida WC. Identification of a New Binding Site in E. coli FabH using Molecular Dynamics Simulations: Validation by Computational Alanine Mutagenesis and Docking Studies. J Chem Inf Model 2013; 53:1138-56. [DOI: 10.1021/ci3003528] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Divya Ramamoorthy
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue,
Tampa, Florida 33620, United States
| | - Edward Turos
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue,
Tampa, Florida 33620, United States
- Center for Molecular Diversity in Drug Design, Discovery and Delivery, 4202
E. Fowler Avenue, Tampa, Florida 33620, United States
- Center for Drug Discovery and Innovation, 4202 E. Fowler Avenue, Tampa,
Florida 33620, United States
| | - Wayne C. Guida
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue,
Tampa, Florida 33620, United States
- Drug Discovery Department, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa,
Florida 33612, United States
- Center for Molecular Diversity in Drug Design, Discovery and Delivery, 4202
E. Fowler Avenue, Tampa, Florida 33620, United States
- Center for Drug Discovery and Innovation, 4202 E. Fowler Avenue, Tampa,
Florida 33620, United States
| |
Collapse
|
46
|
Prasad CD, Kumar S, Sattar M, Adhikary A, Kumar S. Metal free sulfenylation and bis-sulfenylation of indoles: persulfate mediated synthesis. Org Biomol Chem 2013; 11:8036-40. [DOI: 10.1039/c3ob41601a] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
47
|
Inhibitors of fatty acid synthesis in prokaryotes and eukaryotes as anti-infective, anticancer and anti-obesity drugs. Future Med Chem 2012; 4:1113-51. [PMID: 22709254 DOI: 10.4155/fmc.12.62] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
There is a large range of diseases, such diabetes and cancer, which are connected to abnormal fatty acid metabolism in human cells. Therefore, inhibitors of human fatty acid synthase have great potential to manage or treat these diseases. In prokaryotes, fatty acid synthesis is important for signaling, as well as providing starting materials for the synthesis of phospholipids, which are required for the formation of the cell membrane. Recently, there has been renewed interest in the development of new molecules that target bacterial fatty acid synthases for the treatment of bacterial diseases. In this review, we look at the differences and similarities between fatty acid synthesis in humans and bacteria and highlight various small molecules that have been shown to inhibit either the mammalian or bacterial fatty acid synthase or both.
Collapse
|
48
|
Luo Y, Yang YS, Fu J, Zhu HL. Novel FabH inhibitors: a patent and article literature review (2000--2012). Expert Opin Ther Pat 2012; 22:1325-36. [PMID: 22998551 DOI: 10.1517/13543776.2012.727798] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION The traditional antimicrobial chemotherapy drugs play their effects mostly via bacterial interference with in vivo amino acids, nucleotides, amino sugars and other small molecule synthesis, or interfering the biochemical processes of these small molecules to synthesize nucleic acids, peptidoglycan and other biological macromolecules. In recent years, enzymes with single function in bacterial fatty acid synthetase system have become the genome-driven novel antibacterial drug targets. Among inhibitors of these targets, FabH inhibitors are distinguished, for their target is different from that of existing antibiotics. Therefore, discovery of FabH inhibitors might be a potential orientation to overcome bacterial resistance. AREAS COVERED This review summarized new patents and articles published on FabH inhibitors from 2000 to 2012. EXPERT OPINION The review gives a brief understanding about the background and development in the area of FabH inhibitors that aims to solve the bacterial resistance problem. This review puts emphasis on some typical small molecules, which participate in the process of FabH inhibition. Overall, the research scopes of antibacterial agents are getting broad. Fatty acid synthase (FAS) pathway has been proved to be a promising target for the therapy. However, claim of novel antibacterial agents with more active and higher specificity is still continued.
Collapse
Affiliation(s)
- Yin Luo
- Nanjing University, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing 210093, People's Republic of China
| | | | | | | |
Collapse
|
49
|
Synthesis of potent inhibitors of β-ketoacyl-acyl carrier protein synthase III as potential antimicrobial agents. Molecules 2012; 17:4770-81. [PMID: 22534662 PMCID: PMC6268549 DOI: 10.3390/molecules17054770] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2011] [Revised: 04/11/2012] [Accepted: 04/16/2012] [Indexed: 11/18/2022] Open
Abstract
Mycobacterium tuberculosis FabH, an essential enzyme in the mycolic acid biosynthetic pathway, is an attractive target for novel anti-tubercolosis agents. Structure-based design and synthesis of 1-(4-carboxybutyl)-4-(4-(substituted benzyloxy)phenyl)-1H-pyrrole-2-carboxylic acid derivatives 7a–h, a subset of eight potential FabH inhibitors, is described in this paper. The Vilsmeier-Haack reaction was employed as a key step. The structures of all the newly synthesized compounds were identified by IR, 1H-NMR, 13C-NMR, ESI-MS and HRMS. The alamarBlue™ microassay was employed to evaluate the compounds 7a–h against Mycobacterium tuberculosis H37Rv. The results demonstrate that the compound 7d possesses good in vitro antimycobacterial activity against Mycobacterium tuberculosis H37Rv (Minimum Inhibitory Concentration value [MIC], 12.5 µg/mL).These compounds may prove useful in the discovery and development of new anti-tuberculosis drugs.
Collapse
|
50
|
Singh R, Mo S, Florova G, Reynolds KA. Streptomyces coelicolor RedP and FabH enzymes, initiating undecylprodiginine and fatty acid biosynthesis, exhibit distinct acyl-CoA and malonyl-acyl carrier protein substrate specificities. FEMS Microbiol Lett 2012; 328:32-8. [PMID: 22136753 DOI: 10.1111/j.1574-6968.2011.02474.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 11/08/2011] [Accepted: 11/24/2011] [Indexed: 11/29/2022] Open
Abstract
RedP is proposed to initiate undecylprodiginine biosynthesis in Streptomyces coelicolor by condensing an acyl-CoA with malonyl-ACP and is homologous to FabH that catalyzes the same reaction for initiation of fatty acid biosynthesis. Herein, we report the substrate specificities of RedP and FabH from assays using pairings of two acyl-CoA substrates (acetyl-CoA and isobutyryl-CoA) and two malonyl-ACP substrates (malonyl-RedQ and malonyl-FabC). RedP activity was observed only with a pairing of acetyl-CoA and malonyl-RedQ, consistent with its proposed role in initiating the formation of acetyl-CoA-derived prodiginines. Malonyl-FabC is not a substrate for RedP, indicating that ACP specificity is one of the factors that permit a separation between prodiginine and fatty acid biosynthetic processes. FabH demonstrated greater catalytic efficiency for isobutyryl-CoA in comparison with acetyl-CoA using malonyl-FabC, consistent with the observation that in streptomycetes, a broad mixture of fatty acids is synthesized, with those derived from branched-chain acyl-CoA starter units predominating. Diminished FabH activity was also observed using malonyl-RedQ with the same preference for isobutyryl-CoA, completing biochemical and genetic evidence that in the absence of RedP this enzyme can produce branched-chain alkyl prodiginines.
Collapse
Affiliation(s)
- Renu Singh
- Department of Chemistry, Portland State University, Portland, OR, USA
| | | | | | | |
Collapse
|