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Wu ZC, Boger DL. The quest for supernatural products: the impact of total synthesis in complex natural products medicinal chemistry. Nat Prod Rep 2020; 37:1511-1531. [PMID: 33169762 PMCID: PMC7678878 DOI: 10.1039/d0np00060d] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Covering: 2000 up to 2020This review presents select recent advances in the medicinal chemistry of complex natural products that are prepared by total synthesis. The underlying studies highlight enabling divergent synthetic strategies and methods that permit the systematic medicinal chemistry studies of key analogues bearing deep-seated structural changes not readily accessible by semisynthetic or biosynthetic means. Select and recent examples are detailed where the key structural changes are designed to improve defined properties or to overcome an intrinsic limitation of the natural product itself. In the examples presented, the synthetic efforts provided supernatural products, a term first introduced by our colleague Ryan Shenvi (Synlett, 2016, 27, 1145-1164), with properties superseding the parent natural product. The design principles and approaches for creating the supernatural products are highlighted with an emphasis on the properties addressed that include those that improve activity or potency, increase selectivity, enhance durability, broaden the spectrum of activity, improve chemical or metabolic stability, overcome limiting physical properties, add mechanisms of action, enhance PK properties, overcome drug resistance, and/or improve in vivo efficacy. Some such improvements may be regarded by some as iterative enhancements whereas others, we believe, truly live up to their characterization as supernatural products. Most such efforts are also accompanied by advances in synthetic organic chemistry, inspiring the development of new synthetic methodology and providing supernatural products with improved synthetic accessibility.
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Affiliation(s)
- Zhi-Chen Wu
- Department of Chemistry, The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037, USA.
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2
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Affiliation(s)
- Debjani Si
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Krishna P. Kaliappan
- Department of ChemistryIndian Institute of Technology Bombay Powai Mumbai 400076 India
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Nagalakshmamma V, Varalakshmi M, Umapriya K, Venkataswamy M, Venkataramaiah C, Thyaga Raju K, Chalapathi PV, NagaRaju C. Synthesis, antimicrobial and antioxidant activity of bis sulfonamide/carbamate derivatives of bis‐(4‐aminophenyl) methane. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.201900434] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
| | - Mavallur Varalakshmi
- Centre for Applied SciencesSree Vidyanikethan Engineering College Tirupati Andhra Pradesh India
| | - Kollu Umapriya
- Department of ChemistrySri Venkateswara University Tirupati Andhra Pradesh India
| | | | | | - Kedam Thyaga Raju
- Department of BiochemistrySri Venkateswara University Tirupati Andhra Pradesh India
| | | | - Chamarthi NagaRaju
- Department of ChemistrySri Venkateswara University Tirupati Andhra Pradesh India
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Acharya V, Mal S, Kilaru JP, Montgomery MG, Deshpande SH, Sonawane RP, Manjunath BN, Pal S. Synthesis of Carbamates from Alkyl Bromides and Secondary Amines Using Silver Carbonate. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Vanitha Acharya
- Santa Monica Works, Corlim, Ilhas; Syngenta Biosciences Pvt. Ltd.; 403110 Goa India
- Department of Chemistry; Mangalore University, Mangalagangothri; 576119 Karnataka India
| | - Sanjib Mal
- Santa Monica Works, Corlim, Ilhas; Syngenta Biosciences Pvt. Ltd.; 403110 Goa India
| | - Jagadeesh P. Kilaru
- Santa Monica Works, Corlim, Ilhas; Syngenta Biosciences Pvt. Ltd.; 403110 Goa India
| | - Mark G. Montgomery
- Jealott's Hill International Research Centre; Syngenta; 42 6EY Bracknell Berkshire United Kingdom
| | | | - Ravindra P. Sonawane
- Santa Monica Works, Corlim, Ilhas; Syngenta Biosciences Pvt. Ltd.; 403110 Goa India
| | - Bhanu N. Manjunath
- Santa Monica Works, Corlim, Ilhas; Syngenta Biosciences Pvt. Ltd.; 403110 Goa India
| | - Sitaram Pal
- Santa Monica Works, Corlim, Ilhas; Syngenta Biosciences Pvt. Ltd.; 403110 Goa India
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Khatun R, Biswas S, Islam S, Biswas IH, Riyajuddin S, Ghosh K, Islam SM. Modified Graphene Oxide Based Zinc Composite: an Efficient Catalyst for N-formylation and Carbamate Formation Reactions Through CO2
Fixation. ChemCatChem 2019. [DOI: 10.1002/cctc.201801963] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Resmin Khatun
- Department of Chemistry; University of Kalyani; Kalyani 741235 W.B. India
| | - Surajit Biswas
- Department of Chemistry; University of Kalyani; Kalyani 741235 W.B. India
| | - Sarikul Islam
- Department of Chemistry; University of Kalyani; Kalyani 741235 W.B. India
| | | | - Sk Riyajuddin
- Institute of Nano Science and Technology; Mohali 160062 India
| | - Kaushik Ghosh
- Institute of Nano Science and Technology; Mohali 160062 India
| | - Sk Manirul Islam
- Department of Chemistry; University of Kalyani; Kalyani 741235 W.B. India
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Synthesis, spectral characterization, docking studies and biological activity of urea, thiourea, sulfonamide and carbamate derivatives of imatinib intermediate. Mol Divers 2018; 23:723-738. [DOI: 10.1007/s11030-018-9906-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 12/11/2018] [Indexed: 10/27/2022]
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Biswas S, Khatun R, Sengupta M, Islam SM. Polystyrene supported Zinc complex as an efficient catalyst for cyclic carbonate formation via CO2 fixation under atmospheric pressure and organic carbamates production. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.04.009] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Prota AE, Bargsten K, Redondo-Horcajo M, Smith AB, Yang CPH, McDaid HM, Paterson I, Horwitz SB, Fernando Díaz J, Steinmetz MO. Structural Basis of Microtubule Stabilization by Discodermolide. Chembiochem 2017; 18:905-909. [PMID: 28207984 DOI: 10.1002/cbic.201600696] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Indexed: 11/12/2022]
Abstract
Microtubule-stabilizing agents (MSAs) are widely used in chemotherapy. Using X-ray crystallography we elucidated the detailed binding modes of two potent MSAs, (+)-discodermolide (DDM) and the DDM-paclitaxel hybrid KS-1-199-32, in the taxane pocket of β-tubulin. The two compounds bind in a very similar hairpin conformation, as previously observed in solution. However, they stabilize the M-loop of β-tubulin differently: KS-1-199-32 induces an M-loop helical conformation that is not observed for DDM. In the context of the microtubule structure, both MSAs connect the β-tubulin helices H6 and H7 and loop S9-S10 with the M-loop. This is similar to the structural effects elicited by epothilone A, but distinct from paclitaxel. Together, our data reveal differential binding mechanisms of DDM and KS-1-199-32 on tubulin.
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Affiliation(s)
- Andrea E Prota
- Laboratory of Biomolecular Research, Department of Biology and Chemistry, Paul Scherrer Institut, OFLC/111, 5232, Villigen PSI, Switzerland
| | - Katja Bargsten
- Laboratory of Biomolecular Research, Department of Biology and Chemistry, Paul Scherrer Institut, OFLC/111, 5232, Villigen PSI, Switzerland.,Current address: Department of Biochemistry, University of Zürich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Mariano Redondo-Horcajo
- Chemical and Physical Biology, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas CIB-CSIC, Ramiro de Maeztu 9, 28040, Madrid, Spain
| | - Amos B Smith
- Department of Chemistry, University of Pennsylvania, 231 S. 34th Street, Philadelphia, PA, 19104, USA
| | - Chia-Ping H Yang
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Golding 201, Bronx, NY, 1046, USA
| | - Hayley M McDaid
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Golding 201, Bronx, NY, 1046, USA
| | - Ian Paterson
- University Chemical Laboratory, Cambridge University, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Susan B Horwitz
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Golding 201, Bronx, NY, 1046, USA
| | - José Fernando Díaz
- Chemical and Physical Biology, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas CIB-CSIC, Ramiro de Maeztu 9, 28040, Madrid, Spain
| | - Michel O Steinmetz
- Laboratory of Biomolecular Research, Department of Biology and Chemistry, Paul Scherrer Institut, OFLC/111, 5232, Villigen PSI, Switzerland
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Peng Y, Liu J, Qi C, Yuan G, Li J, Jiang H. nBu4NI-catalyzed oxidative cross-coupling of carbon dioxide, amines, and aryl ketones: access to O-β-oxoalkyl carbamates. Chem Commun (Camb) 2017; 53:2665-2668. [DOI: 10.1039/c6cc09762f] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The first nBu4NI-catalyzed oxidative cross-coupling reaction of carbon dioxide, amines and arylketones leading to O-β-oxoalkyl carbamates is reported.
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Affiliation(s)
- Youbin Peng
- School of Chemistry and Chemical Engineering
- State Key Lab of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Juan Liu
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Chaorong Qi
- School of Chemistry and Chemical Engineering
- State Key Lab of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Gaoqing Yuan
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Jiawei Li
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Huanfeng Jiang
- Key Lab of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
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Discodermolide. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/b978-0-08-100023-6.00003-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Walleser P, Brückner R. Stereocontrolled Synthesis of a C1-C10Building Block (“Southwestern Moiety”) for the Unnatural Enantiomers of the Polyene Polyol Antibiotics Filipin III and Pentamycin: A Sultone-Forming Ring-Closing Metathesis for Protection of Homoallylic Alcohols. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400145] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kamptmann SB, Brückner R. Stereocontrolled Synthesis of a Cn-Cn+7Building Block (“Eastern Moiety”) for the Unnatural Enantiomers of Important Polyol,Polyene Antibiotics Based on a Ring-Closing Metathesis and an Aldol Addition of a Lactone Enolate. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300183] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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A short and facile stereoselective total synthesis of cryptocarya diacetate. MONATSHEFTE FUR CHEMIE 2013. [DOI: 10.1007/s00706-013-1013-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Smith AB, Sugasawa K, Atasoylu O, Yang CPH, Horwitz SB. Design and synthesis of (+)-discodermolide-paclitaxel hybrids leading to enhanced biological activity. J Med Chem 2011; 54:6319-27. [PMID: 21870795 PMCID: PMC3174350 DOI: 10.1021/jm200692n] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Potential binding modes of (+)-discodermolide at the paclitaxel binding site of tubulin have been identified by computational studies based on earlier structural and SAR data. Examination of the prospective binding modes reveal that the aromatic pocket occupied by the paclitaxel side chain is unoccupied by (+)-discodermolide. Based on these findings, a small library of (+)-discodermolide-paclitaxel hybrids have been designed and synthesized. Biological evaluation reveals a two- to eight-fold increase in antiproliferative activity compared to the parent molecule using the A549 and MCF-7 cancer cell lines.
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Affiliation(s)
- Amos B. Smith
- Department of Chemistry, Monell Chemical Senses Center and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Keizo Sugasawa
- Department of Chemistry, Monell Chemical Senses Center and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Onur Atasoylu
- Department of Chemistry, Monell Chemical Senses Center and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Chia-Ping Huang Yang
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Susan Band Horwitz
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461
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de Lemos E, Agouridas E, Sorin G, Guerreiro A, Commerçon A, Pancrazi A, Betzer JF, Lannou MI, Ardisson J. Conception, Synthesis, and Biological Evaluation of Original Discodermolide Analogues. Chemistry 2011; 17:10123-34. [DOI: 10.1002/chem.201100675] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2011] [Indexed: 11/10/2022]
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Jogalekar AS, Kriel FH, Shi Q, Cornett B, Cicero D, Snyder JP. The discodermolide hairpin structure flows from conformationally stable modular motifs. J Med Chem 2010; 53:155-65. [PMID: 19894728 DOI: 10.1021/jm9015284] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
(+)-Discodermolide (DDM), a polyketide macrolide from marine sponge, is a potent microtubule assembly promoter. Reported solid-state, solution, and protein-bound DDM conformations reveal the unusual result that a common hairpin conformational motif exists in all three microenvironments. No other flexible microtubule binding agent exhibits such constancy of conformation. In the present study, we combine force-field conformational searches with NMR deconvolution in different solvents to compare DDM conformers with those observed in other environments. While several conformational families are perceived, the hairpin form dominates. The stability of this motif is dictated primarily by steric factors arising from repeated modular segments in DDM composed of the C(Me)-CHX-C(Me) fragment. Furthermore, docking protocols were utilized to probe the DDM binding mode in beta-tubulin. A previously suggested pose is substantiated (Pose-1), while an alternative (Pose-2) has been identified. SAR analysis for DDM analogues differentiates the two poses and suggests that Pose-2 is better able to accommodate the biodata.
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Affiliation(s)
- Ashutosh S Jogalekar
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, USA
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Zhao Y, Fang WS, Pors K. Microtubule stabilising agents for cancer chemotherapy. Expert Opin Ther Pat 2009; 19:607-22. [DOI: 10.1517/13543770902775713] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Salum L, Dias L, Andricopulo A. Fragment-Based QSAR and Molecular Modeling Studies on a Series of Discodermolide Analogs as Microtubule-Stabilizing Anticancer Agents. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/qsar.200860109] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Smith AB, Freeze BS. (+)-Discodermolide: Total Synthesis, Construction of Novel Analogues, and Biological Evaluation. Tetrahedron 2008; 64:261-298. [PMID: 21113402 DOI: 10.1016/j.tet.2007.10.039] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Amos B Smith
- Department of Chemistry, Monell Chemical Senses Center, Penn Center for Molecular Discovery, and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA 19104
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Altmann KH, Gertsch J. Anticancer drugs from nature--natural products as a unique source of new microtubule-stabilizing agents. Nat Prod Rep 2007; 24:327-57. [PMID: 17390000 DOI: 10.1039/b515619j] [Citation(s) in RCA: 170] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
This review article provides an overview on the current state of research in the area of microtubule-stabilizing agents from natural sources, with a primary focus on the biochemistry, biology, and pharmacology associated with these compounds. A variety of natural products have been discovered over the last decade to inhibit human cancer cell proliferation through a taxol-like mechanism. These compounds represent a whole new range of structurally diverse lead structures for anticancer drug discovery.
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Affiliation(s)
- Karl-Heinz Altmann
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology (ETH), HCI H405, Wolfgang-Pauli-Str. 10, CH-8093, Zürich, Switzerland.
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Abstract
An overview of marine natural products synthesis during 2005 is provided. In a similar vein to earlier installments in this series, the emphasis is on total syntheses of molecules of contemporary interest, new total syntheses, and syntheses that have resulted in structure confirmation or stereochemical assignments.
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Affiliation(s)
- Jonathan C Morris
- School of Chemistry and Physics, University of Adelaide, Adelaide, Australia 5005
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Trojanowski JQ, Smith AB, Huryn D, Lee VMY. Microtubule-stabilising drugs for therapy of Alzheimer's disease and other neurodegenerative disorders with axonal transport impairments. Expert Opin Pharmacother 2006; 6:683-6. [PMID: 15934894 DOI: 10.1517/14656566.6.5.683] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Increasing evidence implicates impairments of axonal transport in mechanisms underlying diverse neurodegenerative disease. This evidence includes discoveries of mutations in genes encoding human motor proteins or proteins involved in stabilising the microtubule (MT) network required for maintenance of axonal transport in familial neurodegenerative disorders, as well as data from in vivo and in vitro model systems. Moreover, in sporadic neurodegenerative disorders such as Alzheimer's disease (AD), pathological alterations of the MT-binding protein tau are linked to impaired axonal transport and brain degeneration. Because MT-stabilising compounds hold promise for counteracting the loss of tau function in AD and sustaining effective axonal transport, we conclude that MT-binding/stabilising drugs show potential therapeutic utility for the treatment of AD and other neurodegenerative disorders characterised by altered MTs and impaired axonal transport.
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Huang GS, Lopez-Barcons L, Freeze BS, Smith AB, Goldberg GL, Horwitz SB, McDaid HM. Potentiation of taxol efficacy and by discodermolide in ovarian carcinoma xenograft-bearing mice. Clin Cancer Res 2006; 12:298-304. [PMID: 16397055 PMCID: PMC4039036 DOI: 10.1158/1078-0432.ccr-05-0229] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE To evaluate the drug combination of discodermolide and Taxol in human ovarian cancer cells and in an in vivo model of ovarian carcinoma. EXPERIMENTAL DESIGN The combination index method was used to evaluate the interaction of Taxol and discodermolide in human ovarian SKOV-3 carcinoma cells. Data were correlated with alterations in cell cycle distribution and caspase activation. In addition, SKOV-3 xenograft-bearing mice were treated with either Taxol, discodermolide, or a combination of both drugs given concurrently to evaluate the antitumor efficacy and toxicity of this combination. The Matrigel plug assay and CD31 immunohistochemistry were done to assess antiangiogenic effects. RESULTS Taxol and discodermolide interact synergistically over a range of concentrations and molar ratios that cause drug-induced aneuploidy in ovarian carcinoma cells. In SKOV-3 xenograft-bearing mice, the combination is significantly superior to either single agent, and induces tumor regressions without notable toxicities. Immunohistochemical analysis of CD31 and Matrigel plug analysis show decreased vessel formation in mice treated with the combination relative to either drug alone. CONCLUSIONS The synergistic activity of Taxol and discodermolide in cells is most potent at drug concentrations that result in drug-induced aneuploidy rather than mitotic arrest. Moreover, in an animal model of ovarian carcinoma, this is a well-tolerated combination that induces tumor regressions and suppresses angiogenesis. These data confirm the potency of this combination and support the use of concurrent low doses of Taxol and discodermolide for potential use in cancer therapeutics.
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Affiliation(s)
- Gloria S. Huang
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York
- Department of Obstetrics, Gynecology, and Women’s Health, Division of Gynecologic Oncology, Bronx, New York
| | - Lluis Lopez-Barcons
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York
| | - B. Scott Freeze
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Amos B. Smith
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Gary L. Goldberg
- Department of Obstetrics, Gynecology, and Women’s Health, Division of Gynecologic Oncology, Bronx, New York
| | - Susan Band Horwitz
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York
| | - Hayley M. McDaid
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York
- Department of Medicine, Division of Medical Oncology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, New York
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Smith AB, Freeze BS, LaMarche MJ, Sager J, Kinzler KW, Vogelstein B. Discodermolide analogues as the chemical component of combination bacteriolytic therapy. Bioorg Med Chem Lett 2005; 15:3623-6. [PMID: 15979874 DOI: 10.1016/j.bmcl.2005.05.068] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2005] [Revised: 05/10/2005] [Accepted: 05/10/2005] [Indexed: 11/29/2022]
Abstract
The marine natural product (+)-discodermolide (1) and several simplified analogues of this microtubule-stabilizing agent have proven to be potent in vitro cell growth inhibitory agents in several human cancer cell lines. Here, we demonstrate the in vivo efficacy of discodermolide and several simplified congeners, both as stand-alone anti-tumor agents and, in the case of (+)-2,3-anhydrodiscodermolide (3), as a chemical component of the combination bacteriolytic therapy. A single intravenous injection of (+)-3 plus genetically modified Clostridium novyi-NT spores caused rapid and complete regressions of tumors in mice bearing HCT116 colorectal cancer xenografts.
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Affiliation(s)
- Amos B Smith
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
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