1
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Kusaka S, Yamamoto K, Shinohara M, Minato Y, Ichikawa S. Synthesis of capuramycin and its analogues via a Ferrier-type I reaction and their biological evaluation. Bioorg Med Chem 2022; 73:117011. [DOI: 10.1016/j.bmc.2022.117011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 09/09/2022] [Indexed: 11/15/2022]
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2
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Affiliation(s)
- Guozhi Xiao
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany University of Chinese Academy of Science Chinese Academy of Sciences 132 Lanhei Road Kunming 650201 China
| | - Haiqing He
- State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany University of Chinese Academy of Science Chinese Academy of Sciences 132 Lanhei Road Kunming 650201 China
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3
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He H, Xu L, Sun R, Zhang Y, Huang Y, Chen Z, Li P, Yang R, Xiao G. An orthogonal and reactivity-based one-pot glycosylation strategy for both glycan and nucleoside synthesis: access to TMG-chitotriomycin, lipochitooligosaccharides and capuramycin. Chem Sci 2021; 12:5143-5151. [PMID: 34163751 PMCID: PMC8179548 DOI: 10.1039/d0sc06815b] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 02/23/2021] [Indexed: 12/17/2022] Open
Abstract
Both glycans (O-glycosides) and nucleosides (N-glycosides) play important roles in numerous biological processes. Chemical synthesis is a reliable and effective means to solve the attainability issues of these essential biomolecules. However, due to the stereo- and regiochemical issues during glycan assembly, together with problems including the poor solubility and nucleophilicity of nucleobases in nucleoside synthesis, the development of one-pot glycosylation strategies toward efficient synthesis of both glycans and nucleosides remains poor and challenging. Here, we report the first orthogonal and reactivity-based one-pot glycosylation strategy suitable for both glycan and nucleoside synthesis on the basis of glycosyl ortho-(1-phenylvinyl)benzoates. This one-pot glycosylation strategy not only inherits the advantages including no aglycon transfers, no undesired interference of departing species, and no unpleasant odors associated with the previously developed orthogonal one-pot glycosylation strategy based on glycosyl ortho-alkynylbenzoates, but also highly expands the scope (glycans and nucleosides) and increases the number of leaving groups that could be employed for the multistep one-pot synthesis (up to the formation of four different glycosidic bonds). In particular, the current one-pot glycosylation strategy is successfully applied to the total synthesis of a promising tuberculosis drug lead capuramycin and the divergent and formal synthesis of TMG-chitotriomycin with potent and specific inhibition activities toward β-N-acetylglucosaminidases and important endosymbiotic lipochitooligosaccharides including the Nod factor and the Myc factor, which represents one of the most efficient and straightforward synthetic routes toward these biologically salient molecules.
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Affiliation(s)
- Haiqing He
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences Kunming 650201 China
| | - Lili Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences Kunming 650201 China
| | - Roujing Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences Kunming 650201 China
| | - Yunqin Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences Kunming 650201 China
| | - Yingying Huang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences Kunming 650201 China
| | - Zixi Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences Kunming 650201 China
| | - Penghua Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences Kunming 650201 China
| | - Rui Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences Kunming 650201 China
| | - Guozhi Xiao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, University of Chinese Academy of Sciences, Chinese Academy of Sciences Kunming 650201 China
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4
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Mitachi K, Kansal RG, Hevener KE, Gillman CD, Hussain SM, Yun HG, Miranda-Carboni GA, Glazer ES, Clemons WM, Kurosu M. DPAGT1 Inhibitors of Capuramycin Analogues and Their Antimigratory Activities of Solid Tumors. J Med Chem 2020; 63:10855-10878. [PMID: 32886511 DOI: 10.1021/acs.jmedchem.0c00545] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Capuramycin displays a narrow spectrum of antibacterial activity by targeting bacterial translocase I (MraY). In our program of development of new N-acetylglucosaminephosphotransferase1 (DPAGT1) inhibitors, we have identified that a capuramycin phenoxypiperidinylbenzylamide analogue (CPPB) inhibits DPAGT1 enzyme with an IC50 value of 200 nM. Despite a strong DPAGT1 inhibitory activity, CPPB does not show cytotoxicity against normal cells and a series of cancer cell lines. However, CPPB inhibits migrations of several solid cancers including pancreatic cancers that require high DPAGT1 expression in order for tumor progression. DPAGT1 inhibition by CPPB leads to a reduced expression level of Snail but does not reduce E-cadherin expression level at the IC50 (DPAGT1) concentration. CPPB displays a strong synergistic effect with paclitaxel against growth-inhibitory action of a patient-derived pancreatic adenocarcinoma, PD002: paclitaxel (IC50: 1.25 μM) inhibits growth of PD002 at 0.0024-0.16 μM in combination with 0.10-2.0 μM CPPB (IC50: 35 μM).
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Affiliation(s)
- Katsuhiko Mitachi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Rita G Kansal
- Department of Surgery and Center for Cancer Research, College of Medicine, University of Tennessee Health Science Center, 910 Madison St., Suite 300, Memphis, Tennessee 38163, United States
| | - Kirk E Hevener
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Cody D Gillman
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125, United States
| | - Syed M Hussain
- Department of Surgery and Center for Cancer Research, College of Medicine, University of Tennessee Health Science Center, 910 Madison St., Suite 300, Memphis, Tennessee 38163, United States
| | - Hyun Gi Yun
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125, United States
| | - Gustavo A Miranda-Carboni
- Department of Medicine, Division of Hematology-Oncology, University of Tennessee Health Science Center, 19 S. Manassas Avenue, Memphis, Tennessee 38163, United States
| | - Evan S Glazer
- Department of Surgery and Center for Cancer Research, College of Medicine, University of Tennessee Health Science Center, 910 Madison St., Suite 300, Memphis, Tennessee 38163, United States
| | - William M Clemons
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125, United States
| | - Michio Kurosu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
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5
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Mitachi K, Yun HG, Gillman CD, Skorupinska-Tudek K, Swiezewska E, Clemons WM, Kurosu M. Substrate Tolerance of Bacterial Glycosyltransferase MurG: Novel Fluorescence-Based Assays. ACS Infect Dis 2020; 6:1501-1516. [PMID: 31769280 DOI: 10.1021/acsinfecdis.9b00242] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
MurG (uridine diphosphate-N-acetylglucosamine/N-acetylmuramyl-(pentapeptide) pyrophosphoryl-undecaprenol N-acetylglucosamine transferase) is an essential bacterial glycosyltransferase that catalyzes the N-acetylglucosamine (GlcNAc) transformation of lipid I to lipid II during peptidoglycan biosynthesis. Park's nucleotide has been a convenient biochemical tool to study the function of MraY (phospho-MurNAc-(pentapeptide) translocase) and MurG; however, no fluorescent probe has been developed to differentiate individual processes in the biotransformation of Park's nucleotide to lipid II via lipid I. Herein, we report a robust assay of MurG using either the membrane fraction of a M. smegmatis strain or a thermostable MraY and MurG of Hydrogenivirga sp. as enzyme sources, along with Park's nucleotide or Park's nucleotide-Nε-C6-dansylthiourea and uridine diphosphate (UDP)-GlcN-C6-FITC as acceptor and donor substrates. Identification of both the MraY and MurG products can be performed simultaneously by HPLC in dual UV mode. Conveniently, the generated lipid II fluorescent analogue can also be quantitated via UV-Vis spectrometry without the separation of the unreacted lipid I derivative. The microplate-based assay reported here is amenable to high-throughput MurG screening. A preliminary screening of a collection of small molecules has demonstrated the robustness of the assays and resulted in rediscovery of ristocetin A as a strong antimycobacterial MurG and MraY inhibitor.
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Affiliation(s)
- Katsuhiko Mitachi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Hyun Gi Yun
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125, United States
| | - Cody D. Gillman
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125, United States
| | - Karolina Skorupinska-Tudek
- Department of Lipid Biochemistry, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warszawa, Poland
| | - Ewa Swiezewska
- Department of Lipid Biochemistry, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warszawa, Poland
| | - William M. Clemons
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, California 91125, United States
| | - Michio Kurosu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
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6
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Biosynthetic and Synthetic Strategies for Assembling Capuramycin-Type Antituberculosis Antibiotics. Molecules 2019; 24:molecules24030433. [PMID: 30691073 PMCID: PMC6384614 DOI: 10.3390/molecules24030433] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 01/22/2019] [Accepted: 01/22/2019] [Indexed: 01/29/2023] Open
Abstract
Mycobacterium tuberculosis (Mtb) has recently surpassed HIV/AIDS as the leading cause of death by a single infectious agent. The standard therapeutic regimen against tuberculosis (TB) remains a long, expensive process involving a multidrug regimen, and the prominence of multidrug-resistant (MDR), extensively drug-resistant (XDR), and totally drug-resistant (TDR) strains continues to impede treatment success. An underexplored class of natural products—the capuramycin-type nucleoside antibiotics—have been shown to have potent anti-TB activity by inhibiting bacterial translocase I, a ubiquitous and essential enzyme that functions in peptidoglycan biosynthesis. The present review discusses current literature concerning the biosynthesis and chemical synthesis of capuramycin and analogs, seeking to highlight the potential of the capuramycin scaffold as a favorable anti-TB therapeutic that warrants further development.
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7
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Mitachi K, Yun HG, Kurosu SM, Eslamimehr S, Lemieux MR, Klaić L, Clemons WM, Kurosu M. Novel FR-900493 Analogues That Inhibit the Outgrowth of Clostridium difficile Spores. ACS OMEGA 2018; 3:1726-1739. [PMID: 29503973 PMCID: PMC5830699 DOI: 10.1021/acsomega.7b01740] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 01/26/2018] [Indexed: 05/08/2023]
Abstract
The spectrum of antibacterial activity for the nucleoside antibiotic FR-900493 (1) can be extended by chemical modifications. We have generated a small focused library based on the structure of 1 and identified UT-17415 (9), UT-17455 (10), UT-17460 (11), and UT-17465 (12), which exhibit anti-Clostridium difficile growth inhibitory activity. These analogues also inhibit the outgrowth of C. difficile spores at 2× minimum inhibitory concentration. One of these analogues, 11, relative to 1 exhibits over 180-fold and 15-fold greater activity against the enzymes, phospho-MurNAc-pentapeptide translocase (MraY) and polyprenyl phosphate-GlcNAc-1-phosphate transferase (WecA), respectively. The phosphotransferase inhibitor 11 displays antimicrobial activity against several tested bacteria including Bacillus subtilis, Clostridium spp., and Mycobacterium smegmatis, but no growth inhibitory activity is observed against the other Gram-positive and Gram-negative bacteria. The selectivity index (Vero cell cytotoxicity/C. difficileantimicrobial activity) of 11 is approximately 17, and 11 does not induce hemolysis even at a 100 μM concentration.
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Affiliation(s)
- Katsuhiko Mitachi
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Hyun Gi Yun
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Blvd, Pasadena, California 91125, United States
| | - Sara M. Kurosu
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Shakiba Eslamimehr
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Maddie R. Lemieux
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Lada Klaić
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Blvd, Pasadena, California 91125, United States
| | - William M. Clemons
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, 1200 E. California Blvd, Pasadena, California 91125, United States
| | - Michio Kurosu
- Department
of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, Tennessee 38163, United States
- E-mail: . Phone: 901-448-1045. Fax: 901-448-6940 (M.K.)
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8
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Du ST, Sun Z, Liu W, Liao WW. Lewis Base-Catalyzed One-Pot Cascade Sequences of O-Alkenyl-Substituted Cyanohydrins: Diastereoselective Synthesis of Multisubstituted Dihydrofurans. Org Lett 2017; 19:6598-6601. [PMID: 29182288 DOI: 10.1021/acs.orglett.7b03301] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first example of the diastereoselective construction of polysubstituted 2,3-dihydrofurans incorporating contiguous quaternary and tertiary carbon centers via a Lewis base-catalyzed one-pot cascade sequence is described. The diversity and complexity of the final products can be efficiently constructed with high diastereoselectivities via this catalytic multistep process under mild reaction conditions.
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Affiliation(s)
- Shan-Tao Du
- College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Zhen Sun
- College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Wei Liu
- College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Wei-Wei Liao
- College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
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9
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The formation of carbon–carbon and carbon–heteroatom bonds using silver tetrafluoroborate as a promoter. ARAB J CHEM 2016. [DOI: 10.1016/j.arabjc.2015.06.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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10
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Mitachi K, Aleiwi BA, Schneider CM, Siricilla S, Kurosu M. Stereocontrolled Total Synthesis of Muraymycin D1 Having a Dual Mode of Action against Mycobacterium tuberculosis. J Am Chem Soc 2016; 138:12975-12980. [PMID: 27617631 DOI: 10.1021/jacs.6b07395] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A stereocontrolled first total synthesis of muraymycin D1 (1) has been achieved. The synthetic route is highly stereoselective, featuring (1) selective β-ribosylation of the C2-methylated amino ribose, (2) selective Strecker reaction, and (3) ring-opening reaction of a diastereomeric mixture of a diaminolactone to synthesize muraymycidine (epi-capreomycidine). The acid-cleavable protecting groups for secondary alcohol and uridine ureido nitrogen are applied for simultaneous deprotections with the Boc and tBu groups. Muraymycin D1 (1) and its amide derivatives (2 and 3) exhibited growth inhibitory activity against Mycobacterium tuberculosis (MIC50 = 1.56-6.25 μg/mL) and strong enzyme inhibitory activities against the bacterial phosphotransferases (MurX and WecA) (IC50 = 0.096-0.69 μM).
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Affiliation(s)
- Katsuhiko Mitachi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center , 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Bilal A Aleiwi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center , 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Christopher M Schneider
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center , 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Shajila Siricilla
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center , 881 Madison Avenue, Memphis, Tennessee 38163, United States
| | - Michio Kurosu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center , 881 Madison Avenue, Memphis, Tennessee 38163, United States
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11
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Mitachi K, Siricilla S, Yang D, Kong Y, Skorupinska-Tudek K, Swiezewska E, Franzblau SG, Kurosu M. Fluorescence-based assay for polyprenyl phosphate-GlcNAc-1-phosphate transferase (WecA) and identification of novel antimycobacterial WecA inhibitors. Anal Biochem 2016; 512:78-90. [PMID: 27530653 DOI: 10.1016/j.ab.2016.08.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 07/18/2016] [Accepted: 08/08/2016] [Indexed: 11/26/2022]
Abstract
Polyprenyl phosphate-GlcNAc-1-phosphate transferase (WecA) is an essential enzyme for the growth of Mycobacterium tuberculosis (Mtb) and some other bacteria. Mtb WecA catalyzes the transformation from UDP-GlcNAc to decaprenyl-P-P-GlcNAc, the first membrane-anchored glycophospholipid that is responsible for the biosynthesis of mycolylarabinogalactan in Mtb. Inhibition of WecA will block the entire biosynthesis of essential cell wall components of Mtb in both replicating and non-replicating states, making this enzyme a target for development of novel drugs. Here, we report a fluorescence-based method for the assay of WecA using a modified UDP-GlcNAc, UDP-Glucosamine-C6-FITC (1), a membrane fraction prepared from an M. smegmatis strain, and the E. coli B21WecA. Under the optimized conditions, UDP-Glucosamine-C6-FITC (1) can be converted to the corresponding decaprenyl-P-P-Glucosamine-C6-FITC (3) in 61.5% yield. Decaprenyl-P-P-Glucosamine-C6-FITC is readily extracted with n-butanol and can be quantified by ultraviolet-visible (UV-vis) spectrometry. Screening of the compound libraries designed for bacterial phosphotransferases resulted in the discovery of a selective WecA inhibitor, UT-01320 (12) that kills both replicating and non-replicating Mtb at low concentration. UT-01320 (12) also kills the intracellular Mtb in macrophages. We conclude that the WecA assay reported here is amenable to medium- and high-throughput screening, thus facilitating the discovery of novel WecA inhibitors.
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Affiliation(s)
- Katsuhiko Mitachi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163-0001, United States
| | - Shajila Siricilla
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163-0001, United States
| | - Dong Yang
- Department of Microbiology, Immunology & Biochemistry, University of Tennessee Health Science Center, 858 Madison Avenue, Memphis, TN 38163-0001, United Sates
| | - Ying Kong
- Department of Microbiology, Immunology & Biochemistry, University of Tennessee Health Science Center, 858 Madison Avenue, Memphis, TN 38163-0001, United Sates
| | - Karolina Skorupinska-Tudek
- Department of Lipid Biochemistry, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warszawa, Poland
| | - Ewa Swiezewska
- Department of Lipid Biochemistry, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warszawa, Poland
| | - Scott G Franzblau
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood Street, Chicago, IL 60612, United States
| | - Michio Kurosu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163-0001, United States.
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12
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Moloney MG. Natural Products as a Source for Novel Antibiotics. Trends Pharmacol Sci 2016; 37:689-701. [DOI: 10.1016/j.tips.2016.05.001] [Citation(s) in RCA: 161] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/02/2016] [Accepted: 05/02/2016] [Indexed: 01/04/2023]
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13
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Cioc RC, Schuckman P, Preschel HD, Vlaar T, Ruijter E, Orru RVA. Brønsted Acid-Catalyzed Cyanotritylation of Aldehydes by Trityl Isocyanide. Org Lett 2016; 18:3562-5. [DOI: 10.1021/acs.orglett.6b01481] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Răzvan C. Cioc
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam Institute for Molecules Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, the Netherlands
| | - Peter Schuckman
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam Institute for Molecules Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, the Netherlands
| | - Hans D. Preschel
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam Institute for Molecules Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, the Netherlands
| | - Tjøstil Vlaar
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam Institute for Molecules Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, the Netherlands
| | - Eelco Ruijter
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam Institute for Molecules Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, the Netherlands
| | - Romano V. A. Orru
- Department of Chemistry & Pharmaceutical Sciences and Amsterdam Institute for Molecules Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, the Netherlands
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14
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Synthetic Applications of the Parkins Nitrile Hydration Catalyst [PtH{(PMe2O)2H}(PMe2OH)]: A Review. APPLIED SCIENCES-BASEL 2015. [DOI: 10.3390/app5030380] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Mitachi K, Siricilla S, Klaic L, Clemons WM, Kurosu M. Chemoenzymatic syntheses of water-soluble lipid I fluorescent probes. Tetrahedron Lett 2015; 56:3441-3446. [PMID: 26190869 PMCID: PMC4505380 DOI: 10.1016/j.tetlet.2015.01.044] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Peptidoglycan (PG) is unique to bacteria, and thus, the enzymes responsible for its biosynthesis are promising antibacterial drug targets. The membrane-embedded enzymes in PG remain significant challenges in studying their mechanisms due to the fact that preparations of suitable enzymatic substrates require time-consuming biological transformations or chemical synthesis. Lipid I (prenyl diphosphoryl-MurNAc-pentapeptide) is an important PG biosynthesis intermediate to study the central enzymes, translocase I (MraY/MurX) and MurG. Lipid I isolated from nature contains the C50-or C55-prenyl unit that shows extremely poor water-solubility that renders studies of translocase I and MurG enzymes difficult. We have studied biological transformation of water soluble lipid I fluorescent probes using bacterial membrane fractions and purified MraY enzymes. In our investigation of the minimum structural requirements of the prenyl phosphates in MraY-catalyzed lipid I synthesis, we found that (2Z,6E)-farnesyl phosphate (C15-phosphate) can be recognized by E. coli MraY to generate the water-soluble lipid I fluorescent probes in high-yield. Under the optimized conditions, the same reaction was performed by using the purified MraY from Hydrogenivirga spp. to afford the lipid I analog with high-yield in a short reaction time.
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Affiliation(s)
- Katsuhiko Mitachi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163, USA
| | - Shajila Siricilla
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163, USA
| | - Lada Klaic
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Bld. Pasadena, CA 91125, USA
| | - William M. Clemons
- Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Bld. Pasadena, CA 91125, USA
| | - Michio Kurosu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163, USA
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16
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Siricilla S, Mitachi K, Wan B, Franzblau SG, Kurosu M. Discovery of a capuramycin analog that kills nonreplicating Mycobacterium tuberculosis and its synergistic effects with translocase I inhibitors. J Antibiot (Tokyo) 2014; 68:271-8. [PMID: 25269459 PMCID: PMC4382465 DOI: 10.1038/ja.2014.133] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 09/02/2014] [Accepted: 09/07/2014] [Indexed: 11/20/2022]
Abstract
Capuramycin (1) and its analogs are strong translocase I (MurX/MraY) inhibitors. In our SAR studies of capuramycin analogs against M. tuberculosis (Mtb), we observed for the first time that a capuramycin analog, UT-01320 (3) killed non-replicating (dormant) Mtb at low concentrations under low-oxygen conditions, whereas selective MurX inhibitors killed only replicating Mtb under aerobic conditions. Interestingly, 3 did not exhibit MurX enzyme inhibitory activity even at high concentrations, however, 3 inhibited bacterial RNA polymerases with the IC50 values of 100-150 nM range. A new RNA polymerase inhibitor 3 displayed strong synergistic effects with a MurX inhibitor SQ 641 (2), a promising preclinical TB drug.
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Affiliation(s)
- Shajila Siricilla
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Katsuhiko Mitachi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Bajoie Wan
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Scott G Franzblau
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Michio Kurosu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, Memphis, TN, USA
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Siricilla S, Mitachi K, Skorupinska-Tudek K, Swiezewska E, Kurosu M. Biosynthesis of a water-soluble lipid I analogue and a convenient assay for translocase I. Anal Biochem 2014; 461:36-45. [PMID: 24939461 DOI: 10.1016/j.ab.2014.05.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 05/08/2014] [Accepted: 05/22/2014] [Indexed: 02/07/2023]
Abstract
Translocase I (MraY/MurX) is an essential enzyme in growth of the vast majority of bacteria that catalyzes the transformation from UDP-MurNAc-pentapeptide (Park's nucleotide) to prenyl-MurNAc-pentapeptide (lipid I), the first membrane-anchored peptidoglycan precursor. MurX has received considerable attention in the development of new tuberculosis (TB) drugs due to the fact that the MurX inhibitors kill exponentially growing Mycobacterium tuberculosis (Mtb) much faster than clinically used TB drugs. Lipid I isolated from Mtb contains the C50-prenyl unit that shows very poor water solubility; thus, this chemical characteristic of lipid I renders MurX enzyme assays impractical for screening and lacks reproducibility of the enzyme assays. We have established a scalable chemical synthesis of Park's nucleotide-N(ε)-dansylthiourea 2 that can be used as a MurX enzymatic substrate to form lipid I analogues. In our investigation of the minimum structure requirement of the prenyl phosphate in the MraY/MurX-catalyzed lipid I analogue synthesis with 2, we found that neryl phosphate (C10 phosphate) can be recognized by MraY/MurX to generate the water-soluble lipid I analogue in quantitative yield under the optimized conditions. Here, we report a rapid and robust analytical method for quantifying MraY/MurX inhibitory activity of library molecules.
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Affiliation(s)
- Shajila Siricilla
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163-0001, United States
| | - Katsuhiko Mitachi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163-0001, United States
| | - Karolina Skorupinska-Tudek
- Department of Lipid Biochemistry, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warszawa, Poland
| | - Ewa Swiezewska
- Department of Lipid Biochemistry, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warszawa, Poland
| | - Michio Kurosu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163-0001, United States
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