1
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Abou-Salim MA, Shaaban MA, Abd El Hameid MK, Alanazi MM, Halaweish F, Elshaier YAMM. Utilizing Estra-1,3,5,16-Tetraene Scaffold: Design and Synthesis of Nitric Oxide Donors as Chemotherapeutic Resistance Combating Agents in Liver Cancer. Molecules 2023; 28:molecules28062754. [PMID: 36985726 PMCID: PMC10055446 DOI: 10.3390/molecules28062754] [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: 02/16/2023] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/30/2023] Open
Abstract
A new series of nitric oxide-releasing estra-1,3,5,16-tetraene analogs (NO-∆-16-CIEAs) was designed and synthesized as dual inhibitors for EGFR and MRP2 based on our previous findings on estra-1,3,5-triene analog NO-CIEA 17 against both HepG2 and HepG2-R cell lines. Among the target compounds, 14a (R-isomer) and 14b (S-isomer) displayed potent anti-proliferative activity against both HepG2 and HepG2-R cell lines in comparison to the reference drug erlotinib. Remarkably, compound 14a resulted in a prominent reduction in EGFR phosphorylation at a concentration of 1.20 µM with slight activity on the phosphorylation of MEK1/2 and ERK1/2. It also inhibits MRP2 expression in a dose-dependent manner with 24% inhibition and arrested the cells in the S phase of the cell cycle. Interestingly, compound 14a (estratetraene core) exhibited a twofold increase in anti-proliferative activity against both HepG2 and HepG2-R in comparison with the lead estratriene analog, demonstrating the significance of the designed ∆-16 unsaturation. The results shed a light on compound 14a and support further investigations to combat multidrug resistance in chemotherapy of hepatocellular carcinoma patients.
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Affiliation(s)
- Mahrous A Abou-Salim
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
| | - Mohamed A Shaaban
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Mohammed K Abd El Hameid
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Mohammed M Alanazi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Fathi Halaweish
- Department of Chemistry and Biochemistry, South Dakota State University, Box 2202, Brookings, SD 57007, USA
| | - Yaseen A M M Elshaier
- Department of Organic and Medicinal Chemistry, Faculty of Pharmacy, University of Sadat City, Menoufia 32958, Egypt
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2
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Kitamura T, Shiroshita S, Takahashi D, Toshima K. 2-Naphthol Moiety of Neocarzinostatin Chromophore as a Novel Protein-Photodegrading Agent and Its Application as a H 2 O 2 -Activatable Photosensitizer. Chemistry 2020; 26:14351-14358. [PMID: 32533610 DOI: 10.1002/chem.202000833] [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: 02/16/2020] [Revised: 06/08/2020] [Indexed: 11/09/2022]
Abstract
A 2-naphthol derivative 2 corresponding to the aromatic ring moiety of neocarzinostatin chromophore was found to degrade proteins under photo-irradiation with long-wavelength UV light without any additives under neutral conditions. Structure-activity relationship studies of the derivative revealed that methylation of the hydroxyl group at the C2 position of 2 significantly suppressed its photodegradation ability. Furthermore, a purpose-designed synthetic tumor-related biomarker, a H2 O2 -activatable photosensitizer 8 possessing a H2 O2 -responsive arylboronic ester moiety conjugated to the hydroxyl group at the C2 position of 2, showed significantly lower photodegradation ability compared to 2. However, release of the 2 from 8 by reaction with H2 O2 regenerated the photodegradation ability. Compound 8 exhibited selective photo-cytotoxicity against high H2 O2 -expressing cancer cells upon irradiation with long-wavelength UV light.
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Affiliation(s)
- Takashi Kitamura
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Saori Shiroshita
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Daisuke Takahashi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Kazunobu Toshima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
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3
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Mandal S, Biswas S, Mondal MH, Saha B. Green Methodology Development for the Surfactant Assisted Williamson Synthesis of 4-Benzyloxy Benzoic Acid (Ether) in Aqueous Media. TENSIDE SURFACT DET 2020. [DOI: 10.3139/113.110676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Abstract
Modern science and technology promote synthesis routes which are eco-friendly, chemicals which are promoted as “green” and solvents which are less toxic. A convenient method for the synthesis of ether by the reaction of 4-hydroxy benzoic acid and benzyl chloride using a surfactant as catalyst has been developed. The targeted ether is completely immiscible in water but in association with the interface active surfactants, the production of such a hydrophobic organic compound in water has been made possible. Micelles produce a pseudo-cellular organic environment to isolate species from the bulk solvent and favour the compartmentalization of reagents as well. Thus, the enhancement of the local concentration takes place and consequently the reactivity increases. The interaction of such unique chemo-, regio- and stereo-selectivity of surfactants made this reaction feasible. Organic species added to a micellar media are distributed between bulk water and micelles depending on their polarity, charge and dimension. This novel chemistry describes a set of green methods for carrying out this new generation Williamson reaction which can also be used for selective O-alkylation.
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Affiliation(s)
- Sangita Mandal
- Homogeneous Catalysis Laboratory , Department of Chemistry, The University of Burdwan, Burdwan 713104, WB , India
| | - Satyajit Biswas
- Homogeneous Catalysis Laboratory , Department of Chemistry, The University of Burdwan, Burdwan 713104, WB , India
- Department of Chemistry , Hooghly Women's College, Hooghly WB , India
| | | | - Bidyut Saha
- Chemical Sciences Laboratory , Government General degree College Singur, Hooghly 712409, WB , India
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4
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Wiesler S, Bau MA, Niepel T, Younas SL, Luu H, Streuff J. Synthesis of α,ω‐Bis‐Enones by the Double Addition of Alkenyl Grignard Reagents to Diacid Weinreb Amides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Stefan Wiesler
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Michael A. Bau
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Thomas Niepel
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Sara L. Younas
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Hieu‐Trinh Luu
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Jan Streuff
- Institut für Organische Chemie Albert‐Ludwigs‐Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
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5
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Mandal S, Mandal S, Biswas S, Mondal MH, Saha B. Synthesis of 2-(Prop-2-ynyloxy) Benzaldehyde using Salicyl Aldehyde and Propargyl Bromide in Aqueous Micellar Media. TENSIDE SURFACT DET 2019. [DOI: 10.3139/113.110629] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Abstract
Advances in science and technology are promoting eco-friendly synthesis routes, green chemicals, and non-hazardous solvents. A suitable method for the synthesis of 2-(prop-2-ynyloxy) benzaldehyde was developed using three different aqueous micellar media. The targeted product ether is completely immiscible in water, but in combination with interface active surfactants it has been possible to produce the hydrophobic organic compound in water. Micelles function as a pseudocellular organic environment to isolate species from the main solvent and favor compartmentalization of reagents. There is an increase in the local concentration and consequently the reactivity increases. The use of such unique chemo-, regio-, and stereoselectivity renders this reaction new. Organic species added to a micellar media are distributed between water and micelles depending on polarity, charge, and size. In the experiments it was observed that salicylaldehyde and propargyl bromide interacted best in CTAB media and the yield of the formed product was 96 %.
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Affiliation(s)
- Sangita Mandal
- Homogeneous Catalysis Laboratory , Department of Chemistry, The University of Burdwan, Burdwan-713104, WB , India
| | - Swagata Mandal
- Homogeneous Catalysis Laboratory , Department of Chemistry, The University of Burdwan, Burdwan-713104, WB , India
| | - Satyajit Biswas
- Homogeneous Catalysis Laboratory , Department of Chemistry, The University of Burdwan, Burdwan-713104, WB , India
- Department of Chemistry , Hooghly Women's College, Hooghly WB , India
| | - Monohar Hossain Mondal
- Chemical Sciences Laboratory , Government General degree College, Singur, Hooghly 712409, WB , India
| | - Bidyut Saha
- Homogeneous Catalysis Laboratory , Department of Chemistry, The University of Burdwan, Burdwan-713104, WB , India
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6
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Bhattacharya P, Basak A, Campbell A, Alabugin IV. Photochemical Activation of Enediyne Warheads: A Potential Tool for Targeted Antitumor Therapy. Mol Pharm 2018; 15:768-797. [DOI: 10.1021/acs.molpharmaceut.7b00911] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | - Amit Basak
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Adam Campbell
- Department of Chemistry & Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Igor V. Alabugin
- Department of Chemistry & Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
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7
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Basak A, Goswami M, Rajkumar A, Mitra T, Majumdar S, O'Reilly P, Bdour HM, Trudeau VL, Basak A. Enediynyl peptides and iso-coumarinyl methyl sulfones as inhibitors of proprotein convertases PCSK8/SKI-1/S1P and PCSK4/PC4: Design, synthesis and biological evaluations. Bioorg Med Chem Lett 2015; 25:2225-37. [PMID: 25881830 DOI: 10.1016/j.bmcl.2015.03.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 03/09/2015] [Accepted: 03/11/2015] [Indexed: 02/05/2023]
Abstract
The proprotein convertases PCSK8 and PCSK4 are, respectively, the 8th and 4th members of Ca(+2)-dependent serine endoprotease of Proprotein Convertase Subtilisin Kexin (PCSK) super family structurally related to the bacterial subtilisin and yeast kexin. The membrane bound PCSK8 (also called SKI-1 or S1P) is implicated in sterol regulation and lipid synthesis via its role in the maturation of human (h) SREBP-2. It also plays role in cartilage formation, bone mineralization, as well as viral pathogenesis. On the other hand, PCSK4 has been linked to mammalian fertilization and placenta growth. Owing to these findings, interest has grown to develop specific inhibitors against these enzymes for potential biochemical and therapeutic applications. In this study we developed two types of small molecule inhibitors of PCSK8 and PCSK4 and demonstrated their anti-proteolytic activities in vitro cell-free and in vitro cell culture systems. These are isocoumarinyl methyl sulfone derivatives and enediyne amino acid containing peptides. Our in vitro data suggested that one of the 7 sulfone derivatives (methyl phenyl sulfone) inhibited PCSK8 with inhibition constant Ki ∼255μM. It also blocked PCSK8-mediated processing of hSREBP-2 in HepG2 cell in a concentration-dependent manner. However all 7 iso-coumarinyl methyl sulfones inhibited htrypsin with IC50 ranging from 2 to 165μM. In contrast, all our designed enediynyl peptides inhibited PCSK8 and PCSK4 activity with Ki and IC50 in low μM or high nM ranges. All compounds exhibited competitive inhibition as indicated by their enzyme kinetic plots and observed dependence of IC50 value on substrate concentration. Our study confirmed that incorporation at the substrate cleavage site of 'Enediyne amino acid' generates potent inhibitors of PCSK8 and PCSK4. This represents a novel approach for future development of inhibitors of PCSK or other enzymes.
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Affiliation(s)
- Ajoy Basak
- Interdisciplinary School of Health Sciences Unit, Faculty of Health Science, U Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada; Chronic Disease Program, Ottawa Hospital Research Institute, U Ottawa, Canada.
| | - Mukunda Goswami
- Interdisciplinary School of Health Sciences Unit, Faculty of Health Science, U Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada; Centre for Advanced Research in Environmental Genomics, Department of Biology, U Ottawa, Canada
| | - Abishankari Rajkumar
- Interdisciplinary School of Health Sciences Unit, Faculty of Health Science, U Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada
| | - Tapobrata Mitra
- Department of Chemistry, Indian Institute of Technology, Kharagpur, W Bengal, India
| | - Swapan Majumdar
- Interdisciplinary School of Health Sciences Unit, Faculty of Health Science, U Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada; Chemistry Department, Tripura University, Suryamaninagar 799022, India
| | - Paul O'Reilly
- Interdisciplinary School of Health Sciences Unit, Faculty of Health Science, U Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada
| | | | - Vance L Trudeau
- Centre for Advanced Research in Environmental Genomics, Department of Biology, U Ottawa, Canada
| | - Amit Basak
- Department of Chemistry, Indian Institute of Technology, Kharagpur, W Bengal, India
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8
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Kaya K, Johnson M, Alabugin IV. Opening Enediyne Scissors Wider: pH-Dependent DNA Photocleavage by meta-Diyne Lysine Conjugates. Photochem Photobiol 2015; 91:748-58. [PMID: 25545396 DOI: 10.1111/php.12412] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 12/10/2014] [Indexed: 11/29/2022]
Abstract
Photochemical activation of meta-diynes incapable of Bergman and C1-C5 cyclizations still leads to efficient double-strand DNA cleavage. Spatial proximity of the two arylethynyl groups is not required for efficient DNA photocleavage by the enediyne-lysine conjugates. Efficiency of the cleavage is a function of the external pH and DNA damage is strongly enhanced at pH < 7. The pH-dependence of the DNA photocleavage activity stems from the protonation states of lysine amino groups, the internal electron donors responsible for intramolecular PET quenching and deactivation of the photoreactive excited states. DNA-binding analysis suggests intercalative DNA binding for phenyl substituted conjugate and groove binding for TFP-substituted conjugate. Additional insights in the possible mechanism for DNA damage from the ROS (Reactive Oxygen Species) scavenger experiments found that generation of singlet oxygen is partially involved in the DNA damage.
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Affiliation(s)
- Kemal Kaya
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL
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9
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Song D, Sun S, Tian Y, Huang S, Ding Y, Yuan Y, Hu A. Maleimide-based acyclic enediyne for efficient DNA-cleavage and tumor cell suppression. J Mater Chem B 2015; 3:3195-3200. [DOI: 10.1039/c4tb02018a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A pH-sensitive acyclic enediyne (1) was synthesized for efficient DNA-cleavage and tumor cell suppression.
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Affiliation(s)
- Depeng Song
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Shiyuan Sun
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Yu Tian
- The State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Shuai Huang
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Yun Ding
- Department of Chemistry and Applied Biosciences
- Eidgenössische Technische Hochschule Zurich and Facoltà di Informatica
- Instituto di Scienze Computationali
- Università della Svizzera Italiana
- CH-6900 Lugano
| | - Yuan Yuan
- The State Key Laboratory of Bioreactor Engineering
- East China University of Science and Technology
- Shanghai
- China
| | - Aiguo Hu
- Shanghai Key Laboratory of Advanced Polymeric Materials
- School of Materials Science and Engineering
- East China University of Science and Technology
- Shanghai
- China
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10
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Cinar ME, Morbach G, Schmittel M. Thermal reactivity of neutral and oxidized ferrocenyl-substituted enediynes. Molecules 2014; 19:18399-413. [PMID: 25397734 PMCID: PMC6271431 DOI: 10.3390/molecules191118399] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 11/01/2014] [Accepted: 11/03/2014] [Indexed: 11/16/2022] Open
Abstract
The coupling of two equivalents of ethynylferrocene (2) with one equivalent of 1,2-diiodocyclohexene (1) and 1,2-diiodobenzene (4) using Sonogashira cross-coupling conditions led to 1,2-bis(ferrocenylethynyl)cyclohexene (3) and 1,2-bis(ferrocenylethy-nyl)benzene (5), respectively. At high temperatures enediynes 3 and 5 showed exothermic signals in differential scanning calorimetry (DSC) measurements, suggestive of intramolecular diradicaloid ring formation (Bergman (C1-C6) or Schreiner-Pascal (C1-C5) cyclizations). The oxidation of 3 and 5 to the mono-oxidized enediynes 3+ and 5+ decreased the onset temperatures drastically. Equally, 1-ferrocenylethynyl-2-(p-nitro-phenyl)ethynylbenzene (8) displayed a significant decrease in the onset temperature after oxidation to 8+. Because the insoluble nature of the polymeric material formed in the thermolysis of the oxidized enediynes prevented characterization, the origin of this drastic effect was studied by DFT. Contrary to expectations, one-electron oxidation does not lower the barrier for intramolecular cyclization. Rather, the computations suggest that the polymerization is initiated by a bimolecular process.
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Affiliation(s)
- Mehmet Emin Cinar
- Department Chemie-Biologie, Universität Siegen, Adolf-Reichwein-Str., Siegen D-57068, Germany
| | - Guido Morbach
- Department Chemie-Biologie, Universität Siegen, Adolf-Reichwein-Str., Siegen D-57068, Germany
| | - Michael Schmittel
- Department Chemie-Biologie, Universität Siegen, Adolf-Reichwein-Str., Siegen D-57068, Germany.
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11
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Romeo R, Navarra M, Giofrè SV, Carnovale C, Cirmi S, Lanza G, Chiacchio MA. Synthesis and biological activity of new arenediyne-linked isoxazolidines. Bioorg Med Chem 2014; 22:3379-85. [DOI: 10.1016/j.bmc.2014.04.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 04/15/2014] [Accepted: 04/24/2014] [Indexed: 12/30/2022]
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12
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Fang Z, Wills M. Asymmetric Transfer Hydrogenation of Functionalized Acetylenic Ketones. J Org Chem 2013; 78:8594-605. [DOI: 10.1021/jo401284c] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhijia Fang
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Martin Wills
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, United Kingdom
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13
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Toshima K. Chemical biology based on target-selective degradation of proteins and carbohydrates using light-activatable organic molecules. ACTA ACUST UNITED AC 2013; 9:834-54. [DOI: 10.1039/c2mb25416f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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14
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Mondal S, Nechab M, Campolo D, Vanthuyne N, Bertrand MP. Copper Carbenoid, Reactant and Catalyst for One-Pot Diazo Ester Coupling Cascade Rearrangement of Enediynes: Formation of Two Contiguous Tetrasubstituted Stereocenters. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200045] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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15
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Cyclic enediyne–amino acid chimeras as new aminopeptidase N inhibitors. Amino Acids 2012; 43:2087-100. [DOI: 10.1007/s00726-012-1292-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Accepted: 04/03/2012] [Indexed: 10/28/2022]
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Breiner B, Kaya K, Roy S, Yang WY, Alabugin IV. Hybrids of amino acids and acetylenic DNA-photocleavers: optimising efficiency and selectivity for cancer phototherapy. Org Biomol Chem 2012; 10:3974-87. [DOI: 10.1039/c2ob00052k] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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17
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Tanimoto S, Takahashi D, Toshima K. Chemical methods for degradation of target proteins using designed light-activatable organic molecules. Chem Commun (Camb) 2012; 48:7659-71. [DOI: 10.1039/c2cc30831b] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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18
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Yang WY, Roy S, Phrathep B, Rengert Z, Kenworthy R, Zorio DAR, Alabugin IV. Engineering pH-Gated Transitions for Selective and Efficient Double-Strand DNA Photocleavage in Hypoxic Tumors. J Med Chem 2011; 54:8501-16. [DOI: 10.1021/jm2010282] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wang-Yong Yang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390,
United States
| | - Saumya Roy
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390,
United States
| | - Boondaniwon Phrathep
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390,
United States
| | - Zach Rengert
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390,
United States
| | - Rachael Kenworthy
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390,
United States
| | - Diego A. R. Zorio
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390,
United States
| | - Igor V. Alabugin
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390,
United States
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19
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Vinogradova OV, Balova IA, Popik VV. Synthesis and Reactivity of Cinnoline-Fused Cyclic Enediyne. J Org Chem 2011; 76:6937-41. [DOI: 10.1021/jo201148h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Olga V. Vinogradova
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Irina A. Balova
- Department of Chemistry, St. Petersburg State University, 198504 St. Petersburg, Russian Federation
| | - Vladimir V. Popik
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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20
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Laroche C, Li J, Kerwin SM. Cytotoxic 1,2-dialkynylimidazole-based aza-enediynes: aza-Bergman rearrangement rates do not predict cytotoxicity. J Med Chem 2011; 54:5059-69. [PMID: 21667990 DOI: 10.1021/jm200289j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new class of potential antitumor agents inspired by the enediyne antitumor antibiotics has been synthesized: the 1,2-dialkynylimidazoles. The aza-Bergman rearrangement of these 1,2-dialkynylimidazoles has been investigated theoretically at the B3LYP/6-31G(d,p) level and experimentally by measuring the kinetics of rearrangement in 1,4-cyclohexadiene. There is a good correlation between the theoretical and experimental results; subtle substituent effects on the initial aza-Bergman cyclization barrier predicted by theory are confirmed by experiment. Yet, despite the ability of these 1,2-dialkynylimidazoles to undergo Bergman rearrangement to diradical/carbene intermediates under relatively mild conditions, there is no correlation between the rate of Bergman cyclization and cytotoxicity to A459 cells. In addition, cytotoxic 1,2-dialkynylimidazoles do not cause nicking of supercoiled plasmid DNA or cleavage of bovine serum albumin. An alternative mechanism for cytotoxicity involving the unexpected selective thiol addition to the N-ethynyl group of certain 1,2-dialkynylimidazoles is proposed.
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Affiliation(s)
- Christophe Laroche
- Division of Medicinal Chemistry, College of Pharmacy, The University of Texas at Austin, Texas 78712, USA
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Tsumura K, Suzuki A, Tsuzuki T, Tanimoto S, Kaneko H, Matsumura S, Imoto M, Umezawa K, Takahashi D, Toshima K. Molecular design, chemical synthesis, and biological evaluation of agents that selectively photo-degrade the transcription factor estrogen receptor-α. Org Biomol Chem 2011; 9:6357-66. [DOI: 10.1039/c1ob05629h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Ishida Y, Tanimoto S, Takahashi D, Toshima K. Photo-degradation of amyloid β by a designed fullerene–sugar hybrid. MEDCHEMCOMM 2010. [DOI: 10.1039/c0md00075b] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Laroche C, Li J, Gonzales C, David WM, Kerwin SM. Cyclization kinetics and biological evaluation of an anticancer 1,2-dialkynylimidazole. Org Biomol Chem 2010; 8:1535-9. [DOI: 10.1039/b925261d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Liang ZX. Complexity and simplicity in the biosynthesis of enediyne natural products. Nat Prod Rep 2010; 27:499-528. [DOI: 10.1039/b908165h] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Basak A, Khatib AM, Mohottalage D, Basak S, Kolajova M, Bag SS, Basak A. A novel enediynyl peptide inhibitor of furin that blocks processing of proPDGF-A, B and proVEGF-C. PLoS One 2009; 4:e7700. [PMID: 19956642 PMCID: PMC2778948 DOI: 10.1371/journal.pone.0007700] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2009] [Accepted: 09/28/2009] [Indexed: 12/22/2022] Open
Abstract
Background Furin represents a crucial member of secretory mammalian subtilase, the Proprotein Convertase (PC) or Proprotein Convertase Subtilisin/Kexin (PCSK) superfamily. It has been linked to cancer, tumorgenesis, viral and bacterial pathogenesis. As a result it is considered a major target for intervention of these diseases. Methodology/Principal Findings Herein, we report, for the first time, the synthesis and biological evaluation of a newly designed potent furin inhibitor that contains a highly reactive beta-turn inducing and radical generating “enediynyl amino acid” (Eda) moiety. “Eda” was inserted between P1 and P1′ residues of hfurin98–112 peptide, derived from the primary cleavage site of furin's own prodomain. The resulting hexadecapeptide derivative inhibited furin in vitro with IC50 ∼40 nM when measured against the fluorogenic substrate Boc-RVRR-MCA. It also inhibited furin-mediated cleavage of a fluorogenic peptide derived from hSARS-CoV spike protein with IC50 ∼193 nM. Additionally it also blocked furin-processing of growth factors proPDGF-A, B and VEGF-C that are linked to tumor genesis and cancer. Circular dichroism study showed that this inhibitor displayed a predominantly beta-turn structure while western blots confirmed its ability to protect furin protein from self degradation. Conclusion/Significance These findings imply its potential as a therapeutic agent for intervention of cancer and other furin-associated diseases.
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Affiliation(s)
- Ajoy Basak
- Department of Biochemistry, Chronic Diseases Program, Regional Protein Chemistry Center, Ottawa Hospital Research Institute, University of Ottowa, Ottawa, Canada.
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26
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Target-selective degradation of proteins and oligosaccharides by light-activated hybrid molecules for molecular-targeted photodynamic therapy. Future Med Chem 2009; 1:1113-24. [PMID: 21425996 DOI: 10.4155/fmc.09.81] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Proteins and oligosaccharides are key players in many biological events. The development of novel methods for the selective degradation of targeted proteins and oligosaccharides has attracted much attention in the fields of chemistry, biology and medicine. Target-selective degradations of proteins, such as estrogen receptor-α androgen receptor and HIV-1 protease, by light-activated 2-phenylquinoline-steroid hormone hybrids, porphyrin derivatives and fullerene-sugar hybrids, and target-selective degradation of oligosaccharides, such as a T-antigen disaccharide, by a light-activated anthraquinone-lectin hybrid have been achieved. This novel class of light-activated and molecular-targeted molecules, namely molecular-targeted photosensitizers, promise bright prospects for finding not only molecular-targeted bioprobes for future application in the life sciences but also molecular-targeted drugs for future photodynamic therapy.
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27
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Yang WY, Breiner B, Kovalenko SV, Ben C, Singh M, LeGrand SN, Sang QXA, Strouse GF, Copland JA, Alabugin IV. C-lysine conjugates: pH-controlled light-activated reagents for efficient double-stranded DNA cleavage with implications for cancer therapy. J Am Chem Soc 2009; 131:11458-70. [PMID: 19637922 PMCID: PMC2771568 DOI: 10.1021/ja902140m] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Double-stranded DNA cleavage of light-activated lysine conjugates is strongly enhanced at the slightly acidic pH (<7) suitable for selective targeting of cancer cells. This enhancement stems from the presence of two amino groups of different basicities. The first amino group plays an auxiliary role by enhancing solubility and affinity to DNA, whereas the second amino group, which is positioned next to the light-activated DNA cleaver, undergoes protonation at the desired pH threshold. This protonation results in two synergetic effects which account for the increased DNA-cleaving ability at the lower pH. First, lysine conjugates show tighter binding to DNA at the lower pH, which is consistent with the anticipated higher degree of interaction between two positively charged ammonium groups with the negatively charged phosphate backbone of DNA. Second, the unproductive pathway which quenches the excited state of the photocleaver through intramolecular electron transfer is eliminated once the donor amino group next to the chromophore is protonated. Experiments in the presence of traps for diffusing radicals show that reactive oxygen species do not contribute significantly to the mechanism of DNA cleavage at the lower pH, which is indicative of tighter binding to DNA under these conditions. This feature is valuable not only because many solid tumors are hypoxic but also because cleavage which does not depend on diffusing species is more localized and efficient. Sequence-selectivity experiments suggest combination of PET and base alkylation as the chemical basis for the observed DNA damage. The utility of these molecules for phototherapy of cancer is confirmed by the drastic increase in toxicity of five conjugates against cancer cell lines upon photoactivation.
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Affiliation(s)
- Wang-Yong Yang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
| | - Boris Breiner
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
| | - Serguei V. Kovalenko
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
| | - Chi Ben
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
| | - Mani Singh
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
| | - Shauna N. LeGrand
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Jacksonville, Florida 32224
| | - Qing-Xiang Amy Sang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
| | - Geoffrey F. Strouse
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
| | - John A. Copland
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Jacksonville, Florida 32224
| | - Igor V. Alabugin
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
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28
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Vasilevsky SF, Govdi AI, Shults EE, Shakirov MM, Sorokina IV, Tolstikova TG, Baev DS, Tolstikov GA, Alabugin IV. Efficient synthesis of the first betulonic acid-acetylene hybrids and their hepatoprotective and anti-inflammatory activity. Bioorg Med Chem 2009; 17:5164-9. [PMID: 19524443 DOI: 10.1016/j.bmc.2009.05.059] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2008] [Revised: 05/18/2009] [Accepted: 05/22/2009] [Indexed: 11/27/2022]
Abstract
The Sonogashira reaction can be applied for the preparation of acetylenic derivatives of betulonic acid where the triterpenoid moiety can serve as either the halo- or the acetylenic component. This reaction opened access to the first derivatives of betulonic acid containing either the arylethynyl (C[triple bond]C-Ar(Het) or the ethynyl (C[triple bond]CH) moieties. From the fundamental perspective, this work illustrates the possibility of selective Pd-catalyzed cross-coupling at terminal acetylenes in the presence of a terminal alkene. Hepatoprotective and anti-inflammatory properties of selected acetylenic derivatives of betulonic acid were investigated using the CCl4-induced hepatitis and carrageenan-induced edema models, respectively.
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Affiliation(s)
- Sergey F Vasilevsky
- Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, 3 Institutskaya str., 630090 Novosibirsk, Russian Federation.
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29
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Design and synthesis of enediyne-peptide conjugates and their inhibiting activity against chymotrypsin. Bioorg Med Chem 2009; 17:3900-8. [PMID: 19428261 DOI: 10.1016/j.bmc.2009.04.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2009] [Revised: 04/10/2009] [Accepted: 04/11/2009] [Indexed: 11/21/2022]
Abstract
Novel enediyne-amino acid conjugates 1-4 have been synthesized. All of these effectively target the enzyme chymotrypsin inhibiting its proteolytic activity. The conjugate with a directly linked phenyl alanine is the most effective inhibitor with a K(i) of 3 microM. The mode of inhibition is mostly competitive or of a mixed type depending on the nature of the inhibitor.
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30
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Roy M, Bhowmick T, Santhanagopal R, Ramakumar S, Chakravarty AR. Photo-induced double-strand DNA and site-specific protein cleavage activity of l-histidine (μ-oxo)diiron(iii) complexes of heterocyclic bases. Dalton Trans 2009:4671-82. [DOI: 10.1039/b901337g] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Tanimoto S, Matsumura S, Toshima K. Target-selective degradation of proteins by porphyrins upon visible photo-irradiation. Chem Commun (Camb) 2008:3678-80. [DOI: 10.1039/b806961a] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Tanimoto S, Sakai S, Matsumura S, Takahashi D, Toshima K. Target-selective photo-degradation of HIV-1 protease by a fullerene-sugar hybrid. Chem Commun (Camb) 2008:5767-9. [DOI: 10.1039/b811726h] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Murai T, Fukushima K, Mutoh Y. Synthesis and Properties of 1-Methylthiopropargylammonium Salts and Their Use as Key Precursors to Sulfur-Containing Enediynes. Org Lett 2007; 9:5295-8. [DOI: 10.1021/ol7024923] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Toshiaki Murai
- Department of Chemistry, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Kozue Fukushima
- Department of Chemistry, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Yuichiro Mutoh
- Department of Chemistry, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
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34
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Breiner B, Schlatterer JC, Kovalenko SV, Greenbaum NL, Alabugin IV. Protected 32P-labels in deoxyribonucleotides: investigation of sequence selectivity of DNA photocleavage by enediyne-, fulvene-, and acetylene-lysine conjugates. Angew Chem Int Ed Engl 2007; 45:3666-70. [PMID: 16642539 DOI: 10.1002/anie.200504479] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Boris Breiner
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA
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35
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Chinchilla R, Najera C. The Sonogashira Reaction: A Booming Methodology in Synthetic Organic Chemistry. Chem Rev 2007; 107:874-922. [PMID: 17305399 DOI: 10.1021/cr050992x] [Citation(s) in RCA: 2264] [Impact Index Per Article: 133.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rafael Chinchilla
- Departamento de Química Orgánica and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Facultad de Ciencias, Apartado 99, 03080 Alicante, Spain.
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36
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Suzuki A, Tsumura K, Tsuzuki T, Matsumura S, Toshima K. Target-selective degradation of proteins by a light-activated 2-phenylquinoline-estradiol hybrid. Chem Commun (Camb) 2007:4260-2. [DOI: 10.1039/b708947c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Pal M, Batchu VR, Swamy NK, Padakanti S. Alkynylation of halo pyrimidines under Pd/C–copper catalysis: regioselective synthesis of 4- and 5-alkynylpyrimidines. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.03.159] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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38
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Breiner B, Schlatterer JC, Kovalenko SV, Greenbaum NL, Alabugin IV. Protected32P-Labels in Deoxyribonucleotides: Investigation of Sequence Selectivity of DNA Photocleavage by Enediyne–, Fulvene–, and Acetylene–Lysine Conjugates. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200504479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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