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Szabo R, Dobie C, Montgomery AP, Steele H, Yu H, Skropeta D. Synthesis of α-Hydroxy-1,2,3-Triazole-linked Sialyltransferase Inhibitors and Evaluation of Selectivity Towards ST3GAL1, ST6GAL1 and ST8SIA2. ChemMedChem 2024:e202400088. [PMID: 38758134 DOI: 10.1002/cmdc.202400088] [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: 01/30/2024] [Revised: 05/15/2024] [Accepted: 05/15/2024] [Indexed: 05/18/2024]
Abstract
Tumour-derived sialoglycans, bearing the charged nonulosonic sugar sialic acid at their termini, play a critical role in tumour cell adhesion and invasion, as well as evading cell death and immune surveillance. Sialyltransferases (ST), the enzymes responsible for the biosynthesis of sialylated glycans, are highly upregulated in cancer, with tumour hypersialylation strongly correlated with tumour growth, metastasis and drug resistance. As a result, desialylation of the tumour cell surface using either targeted delivery of a pan-ST inhibitor (or sialidase) or systemic delivery of a non-toxic selective ST inhibitors are being pursued as potential new anti-metastatic strategies against multiple cancers including pancreatic, ovarian, breast, melanoma and lung cancer. Herein, we have employed molecular modelling to give insights into the selectivity observed in a series of selective ST inhibitors that incorporate a uridyl ring in place of the cytidine of the natural donor (CMP-Neu5Ac) and replace the charged phosphodiester linker of classical ST inhibitors with a neutral α-hydroxy-1,2,3-triazole linker. The inhibitory activities of the nascent compounds were determined against recombinant human ST enzymes (ST3GAL1, ST6GAL1, ST8SIA2) showing promising activity and selectivity towards specific ST sub-types. Our ST inhibitors are non-toxic and show improved synthetic accessibility and drug-likeness compared to earlier nucleoside-based ST inhibitors.
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Affiliation(s)
- Rémi Szabo
- School of Chemistry & Molecular Bioscience, University of Wollongong, Wollongong, NSW, Australia
| | - Chris Dobie
- School of Chemistry & Molecular Bioscience, University of Wollongong, Wollongong, NSW, Australia
- Molecular Horizons, University of Wollongong, Wollongong, NSW, Australia
| | - Andrew P Montgomery
- School of Chemistry & Molecular Bioscience, University of Wollongong, Wollongong, NSW, Australia
| | - Harrison Steele
- School of Chemistry & Molecular Bioscience, University of Wollongong, Wollongong, NSW, Australia
| | - Haibo Yu
- School of Chemistry & Molecular Bioscience, University of Wollongong, Wollongong, NSW, Australia
- Molecular Horizons, University of Wollongong, Wollongong, NSW, Australia
- ARC Centre of Excellence in Quantum Biotechnology, University of Wollongong, Wollongong, NSW, Australia
| | - Danielle Skropeta
- School of Chemistry & Molecular Bioscience, University of Wollongong, Wollongong, NSW, Australia
- Molecular Horizons, University of Wollongong, Wollongong, NSW, Australia
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2
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Agrahari AK, Bose P, Jaiswal MK, Rajkhowa S, Singh AS, Hotha S, Mishra N, Tiwari VK. Cu(I)-Catalyzed Click Chemistry in Glycoscience and Their Diverse Applications. Chem Rev 2021; 121:7638-7956. [PMID: 34165284 DOI: 10.1021/acs.chemrev.0c00920] [Citation(s) in RCA: 148] [Impact Index Per Article: 49.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Copper(I)-catalyzed 1,3-dipolar cycloaddition between organic azides and terminal alkynes, commonly known as CuAAC or click chemistry, has been identified as one of the most successful, versatile, reliable, and modular strategies for the rapid and regioselective construction of 1,4-disubstituted 1,2,3-triazoles as diversely functionalized molecules. Carbohydrates, an integral part of living cells, have several fascinating features, including their structural diversity, biocompatibility, bioavailability, hydrophilicity, and superior ADME properties with minimal toxicity, which support increased demand to explore them as versatile scaffolds for easy access to diverse glycohybrids and well-defined glycoconjugates for complete chemical, biochemical, and pharmacological investigations. This review highlights the successful development of CuAAC or click chemistry in emerging areas of glycoscience, including the synthesis of triazole appended carbohydrate-containing molecular architectures (mainly glycohybrids, glycoconjugates, glycopolymers, glycopeptides, glycoproteins, glycolipids, glycoclusters, and glycodendrimers through regioselective triazole forming modular and bio-orthogonal coupling protocols). It discusses the widespread applications of these glycoproducts as enzyme inhibitors in drug discovery and development, sensing, gelation, chelation, glycosylation, and catalysis. This review also covers the impact of click chemistry and provides future perspectives on its role in various emerging disciplines of science and technology.
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Affiliation(s)
- Anand K Agrahari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Priyanka Bose
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Manoj K Jaiswal
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Sanchayita Rajkhowa
- Department of Chemistry, Jorhat Institute of Science and Technology (JIST), Jorhat, Assam 785010, India
| | - Anoop S Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Srinivas Hotha
- Department of Chemistry, Indian Institute of Science and Engineering Research (IISER), Pune, Maharashtra 411021, India
| | - Nidhi Mishra
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Vinod K Tiwari
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
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Muñoz-Pina S, Ros-Lis JV, Delgado-Pinar EA, Martı Nez-Camarena A, Verdejo B, Garcı A-España E, Argüelles Á, Andrés A. Inhibitory Effect of Azamacrocyclic Ligands on Polyphenol Oxidase in Model and Food Systems. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:7964-7973. [PMID: 32609498 DOI: 10.1021/acs.jafc.0c02407] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Enzymatic browning is one of the main problems faced by the food industry due to the enzyme polyphenol oxidase (PPO) provoking an undesirable color change in the presence of oxygen. Here, we report the evaluation of 10 different azamacrocyclic compounds with diverse morphologies as potential inhibitors against the activity of PPO, both in model and real systems. An initial screening of 10 ligands shows that all azamacrocyclic compounds inhibit to some extent the enzymatic browning, but the molecular structure plays a crucial role on the power of inhibition. Kinetic studies of the most active ligand (L2) reveal a S-parabolic I-parabolic noncompetitive inhibition mechanism and a remarkable inhibition at micromolar concentration (IC50 = 10 μM). Furthermore, L2 action has been proven on apple juice to significantly reduce the enzymatic browning.
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Affiliation(s)
- Sara Muñoz-Pina
- Instituto Universitario de Ingenierı́a de Alimentos para el Desarrollo (IUIAD-UPV), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - José V Ros-Lis
- REDOLı́, Departamento de Quı́mica Inorgánica, Universitat de València, 46100 Burjassot, Valencia, Spain
| | - Estefanı A Delgado-Pinar
- Instituto de Ciencia Molecular, Universitat de València, C/Catedrático José Beltrán 2, Paterna, Valencia, Spain
| | - Alvaro Martı Nez-Camarena
- Instituto de Ciencia Molecular, Universitat de València, C/Catedrático José Beltrán 2, Paterna, Valencia, Spain
| | - Begoña Verdejo
- Instituto de Ciencia Molecular, Universitat de València, C/Catedrático José Beltrán 2, Paterna, Valencia, Spain
| | - Enrique Garcı A-España
- Instituto de Ciencia Molecular, Universitat de València, C/Catedrático José Beltrán 2, Paterna, Valencia, Spain
| | - Ángel Argüelles
- Instituto Universitario de Ingenierı́a de Alimentos para el Desarrollo (IUIAD-UPV), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - Ana Andrés
- Instituto Universitario de Ingenierı́a de Alimentos para el Desarrollo (IUIAD-UPV), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
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4
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Nawaz M, Malik I, Hameed M, Hussain Kuthu Z, Zhou J. Modifications of histones in parasites as drug targets. Vet Parasitol 2020; 278:109029. [PMID: 31978703 DOI: 10.1016/j.vetpar.2020.109029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 01/13/2020] [Accepted: 01/14/2020] [Indexed: 02/06/2023]
Abstract
Post-translational modifications of histones and histone modifying enzymes play important roles in gene regulations and other physiological processes in parasites. Inhibitors of such modifying enzymes could be useful as novel therapeutics against parasitic diseases or as chemical probes for investigation of epigenetics. Development of parasitic histone modulators has got rapid expansion in the last few years. A number of highly potent and selective compounds have been reported, together with extensive preclinical studies of their biological activity. Some of these compounds have been widely used in humans targeting cancer and are found non-toxic. This review summarizes the antiparasitic activities of histone and histone modifying enzymes inhibitors evaluated in last few years. As the current chemotherapy against parasites is still not satisfactory, therefore, such compounds represents good starting points for the discovery of effective antiparasitic drugs.
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Affiliation(s)
- Mohsin Nawaz
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Irfan Malik
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Mudassar Hameed
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Zulfiqar Hussain Kuthu
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Jinlin Zhou
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China.
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Dye-sensitized photocatalytic and photoelectrochemical hydrogen production through water splitting. RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI 2019. [DOI: 10.1007/s12210-019-00824-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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6
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Hasan P, Pillalamarri VK, Aneja B, Irfan M, Azam M, Perwez A, Maguire R, Yadava U, Kavanagh K, Daniliuc CG, Ahmad MB, Rizvi MMA, Rizwanul Haq QM, Addlagatta A, Abid M. Synthesis and mechanistic studies of diketo acids and their bioisosteres as potential antibacterial agents. Eur J Med Chem 2018; 163:67-82. [PMID: 30503944 DOI: 10.1016/j.ejmech.2018.11.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 10/13/2018] [Accepted: 11/21/2018] [Indexed: 11/16/2022]
Abstract
A series of diketo esters and their pertinent bioisosteres were designed and synthesized as potent antibacterial agents by targeting methionine amino peptidases (MetAPs). In the biochemical assay against purified MetAPs from Streptococcus pneumoniae (SpMetAP1a), Mycobacterium tuberculosis (MtMetAP1c), Enterococcus faecalis (EfMetAP1a) and human (HsMetAP1b), compounds 3a, 4a and 5a showed more than 85% inhibition of all the tested MetAPs at 100 μM concentration. Compounds 4a and 5a also exhibited antibacterial potential with MIC values 62.5 μg/mL (S. pneumoniae), 31.25 μg/mL (E. faecalis), 62.5 μg/mL (Escherichia coli) and 62.5 μg/mL (S. pneumoniae), 62.5 μg/mL (E. coli), respectively. Moreover, 5a also significantly inhibited the growth of multidrug resistant E. coli strains at 512 μg/mL conc., while showing no cytotoxic effect towards healthy CHO cells and thus being selected. Growth kinetics study showed significant inhibition of bacterial growth when treated with different conc. of 5a. TEM analysis also displayed vital damage to bacterial cells by 5a at MIC conc. Moreover, significant inhibition of biofilm formation was observed in bacterial cells treated with MIC conc. of 5a as visualized by SEM micrographs. Interestingly, 5a did not cause an alteration in the hemocyte density in Galleria mellonella larvae which is considered in vivo model for antimicrobial studies and was non-toxic up to a conc. of 2.5 mg/mL.
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Affiliation(s)
- Phool Hasan
- Medicinal Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India; Department of Chemistry, TNB College, TM Bhagalpur University, Bhagalpur, 812007, India
| | - Vijay K Pillalamarri
- Centre for Chemical Biology, Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500607, India
| | - Babita Aneja
- Medicinal Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India
| | - Mohammad Irfan
- Medicinal Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India
| | - Mudsser Azam
- Microbiology Research Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India
| | - Ahmad Perwez
- Genome Biology Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India
| | - Ronan Maguire
- Department of Biology, Maynooth University, Co. Kildare, W23 F2H6, Ireland
| | - Umesh Yadava
- Department of Physics, Deen Dayal Upadhyay Gorakhpur University, Gorakhpur, Uttar Pradesh, 273009, India
| | - Kevin Kavanagh
- Department of Biology, Maynooth University, Co. Kildare, W23 F2H6, Ireland
| | | | - Md Belal Ahmad
- Department of Chemistry, TNB College, TM Bhagalpur University, Bhagalpur, 812007, India
| | - M Moshahid A Rizvi
- Genome Biology Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India
| | - Qazi Mohd Rizwanul Haq
- Microbiology Research Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India
| | - Anthony Addlagatta
- Centre for Chemical Biology, Indian Institute of Chemical Technology, Tarnaka, Hyderabad, 500607, India
| | - Mohammad Abid
- Medicinal Chemistry Laboratory, Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India.
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7
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Hailu GS, Robaa D, Forgione M, Sippl W, Rotili D, Mai A. Lysine Deacetylase Inhibitors in Parasites: Past, Present, and Future Perspectives. J Med Chem 2017; 60:4780-4804. [DOI: 10.1021/acs.jmedchem.6b01595] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Gebremedhin S. Hailu
- Dipartimento
di Chimica e Tecnologie del Farmaco “Sapienza” Università di Roma, 00185 Rome, Italy
| | - Dina Robaa
- Institute of Pharmacy, Martin-Luther-Universitat Halle-Wittenberg, Halle, Germany
| | - Mariantonietta Forgione
- Dipartimento
di Chimica e Tecnologie del Farmaco “Sapienza” Università di Roma, 00185 Rome, Italy
- Center
for Life Nano Science@Sapienza, Italian Institute of Technology, Viale Regina Elena 291, 00161 Rome, Italy
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin-Luther-Universitat Halle-Wittenberg, Halle, Germany
| | - Dante Rotili
- Dipartimento
di Chimica e Tecnologie del Farmaco “Sapienza” Università di Roma, 00185 Rome, Italy
| | - Antonello Mai
- Dipartimento
di Chimica e Tecnologie del Farmaco “Sapienza” Università di Roma, 00185 Rome, Italy
- Istituto
Pasteur, Fondazione Cenci-Bolognetti, “Sapienza” Università di Roma, 00185 Rome, Italy
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Sundriyal S, Moniot S, Mahmud Z, Yao S, Di Fruscia P, Reynolds CR, Dexter DT, Sternberg MJE, Lam EWF, Steegborn C, Fuchter MJ. Thienopyrimidinone Based Sirtuin-2 (SIRT2)-Selective Inhibitors Bind in the Ligand Induced Selectivity Pocket. J Med Chem 2017; 60:1928-1945. [PMID: 28135086 PMCID: PMC6014686 DOI: 10.1021/acs.jmedchem.6b01690] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Indexed: 02/06/2023]
Abstract
Sirtuins (SIRTs) are NAD-dependent deacylases, known to be involved in a variety of pathophysiological processes and thus remain promising therapeutic targets for further validation. Previously, we reported a novel thienopyrimidinone SIRT2 inhibitor with good potency and excellent selectivity for SIRT2. Herein, we report an extensive SAR study of this chemical series and identify the key pharmacophoric elements and physiochemical properties that underpin the excellent activity observed. New analogues have been identified with submicromolar SIRT2 inhibtory activity and good to excellent SIRT2 subtype-selectivity. Importantly, we report a cocrystal structure of one of our compounds (29c) bound to SIRT2. This reveals our series to induce the formation of a previously reported selectivity pocket but to bind in an inverted fashion to what might be intuitively expected. We believe these findings will contribute significantly to an understanding of the mechanism of action of SIRT2 inhibitors and to the identification of refined, second generation inhibitors.
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Affiliation(s)
- Sandeep Sundriyal
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K.
| | - Sébastien Moniot
- Department of Biochemistry, University
of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany
| | - Zimam Mahmud
- Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London W12 0NN, U.K.
| | - Shang Yao
- Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London W12 0NN, U.K.
| | - Paolo Di Fruscia
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K.
| | | | - David T. Dexter
- Centre for Neuroinflammation & Neurodegeneration,
Division of Brain Sciences, Imperial College
London, London W12 0NN, U.K.
| | | | - Eric W.-F. Lam
- Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital Campus, Du Cane Road, London W12 0NN, U.K.
| | - Clemens Steegborn
- Department of Biochemistry, University
of Bayreuth, Universitaetsstrasse 30, 95447 Bayreuth, Germany
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Aneja B, Irfan M, Kapil C, Jairajpuri MA, Maguire R, Kavanagh K, Rizvi MMA, Manzoor N, Azam A, Abid M. Effect of novel triazole-amino acid hybrids on growth and virulence of Candida species: in vitro and in vivo studies. Org Biomol Chem 2016; 14:10599-10619. [PMID: 27735963 DOI: 10.1039/c6ob01718e] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The increasing incidence of human candidiasis and the tendency of Candida species to become resistant to existing chemotherapies are well-recognized health problems. The present study demonstrates the successful synthesis of novel triazole-amino acid hybrids with potent in vitro and in vivo inhibitory activity against Candida species. Particularly, compounds 68 and 70 showed potent in vitro activity against fluconazole (FLC) resistant as well as sensitive clinical isolates of Candida albicans. Time kill curve analysis of lead inhibitors 68 and 70 showed their fungistatic nature. Secretion of hydrolytic enzymes, mainly proteinases and phospholipases, decreased considerably in the presence of 68 and 70 indicating their interference in fungal virulence. TEM analysis of Candida cells exposed to compounds 68 and 70 clearly showed morphological changes and intracellular damage as their possible mode of action. A preliminary mechanistic study carried out on the two most effective inhibitors (68 and 70) revealed the inhibition of ergosterol biosynthesis thereby causing the cells to lose their integrity and viability. The selected compounds did not show significant cytotoxicity up to a concentration of 200 μg mL-1 in the HEK293 cell line. An in silico analysis of 68 and 70 binding to a modeled C. albicans CYP51 showed critical H-bonding as well as hydrophobic interactions with the important active site residues indicating the basis of their anti-Candida role. Studies on the larvae of Galleria mellonella showed that the selected inhibitors (68 and 70) were non-toxic, did not provoke an immune response and significantly reduced Candida proliferation in vivo.
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Affiliation(s)
- Babita Aneja
- Medicinal Chemistry Lab, Department of Biosciences, Jamia Millia Islamia (A Central University), Jamia Nagar, New Delhi 110025, India.
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10
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Chandrasekaran S, Ramapanicker R. Click Chemistry Route to the Synthesis of Unusual Amino Acids, Peptides, Triazole-Fused Heterocycles and Pseudodisaccharides. CHEM REC 2016; 17:63-70. [DOI: 10.1002/tcr.201600093] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Indexed: 11/06/2022]
Affiliation(s)
| | - Ramesh Ramapanicker
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560012 India
- Current Address: Department of Chemistry; Indian Institute of Technology Kanpur; Kanpur 208016 India
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Exner MP, Köhling S, Rivollier J, Gosling S, Srivastava P, Palyancheva ZI, Herdewijn P, Heck MP, Rademann J, Budisa N. Incorporation of Amino Acids with Long-Chain Terminal Olefins into Proteins. Molecules 2016; 21:287. [PMID: 26938510 PMCID: PMC6272937 DOI: 10.3390/molecules21030287] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 02/23/2016] [Accepted: 02/25/2016] [Indexed: 01/05/2023] Open
Abstract
The increasing need for site-specific protein decorations that mimic natural posttranslational modifications requires access to a variety of noncanonical amino acids with moieties enabling bioorthogonal conjugation chemistry. Here we present the incorporation of long-chain olefinic amino acids into model proteins with rational variants of pyrrolysyl-tRNA synthetase (PylRS). Nε-heptenoyl lysine was incorporated for the first time using the known promiscuous variant PylRS(Y306A/Y384F), and Nε-pentenoyl lysine was incorporated in significant yields with the novel variant PylRS(C348A/Y384F). This is the only example of rational modification at position C348 to enlarge the enzyme's binding pocket. Furthermore, we demonstrate the feasibility of our chosen amino acids in the thiol-ene conjugation reaction with a thiolated polysaccharide.
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Affiliation(s)
- Matthias P Exner
- Institute of Chemistry, Technische Universität Berlin, Mueller-Breslau-Strasse 10, 10623 Berlin, Germany.
| | - Sebastian Köhling
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany.
| | - Julie Rivollier
- Service de Chimie Bioorganique et de Marquage, iBiTecS, CEA, 91191 Gif-sur-Yvette, France.
| | - Sandrine Gosling
- Service de Chimie Bioorganique et de Marquage, iBiTecS, CEA, 91191 Gif-sur-Yvette, France.
| | - Puneet Srivastava
- Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium.
| | - Zheni I Palyancheva
- Institute of Chemistry, Technische Universität Berlin, Mueller-Breslau-Strasse 10, 10623 Berlin, Germany.
| | - Piet Herdewijn
- Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium.
| | - Marie-Pierre Heck
- Service de Chimie Bioorganique et de Marquage, iBiTecS, CEA, 91191 Gif-sur-Yvette, France.
| | - Jörg Rademann
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany.
| | - Nediljko Budisa
- Institute of Chemistry, Technische Universität Berlin, Mueller-Breslau-Strasse 10, 10623 Berlin, Germany.
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12
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Overexpression of cytoplasmic TcSIR2RP1 and mitochondrial TcSIR2RP3 impacts on Trypanosoma cruzi growth and cell invasion. PLoS Negl Trop Dis 2015; 9:e0003725. [PMID: 25875650 PMCID: PMC4398437 DOI: 10.1371/journal.pntd.0003725] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 03/30/2015] [Indexed: 11/19/2022] Open
Abstract
Background Trypanosoma cruzi is a protozoan pathogen responsible for Chagas disease. Current therapies are inadequate because of their severe host toxicity and numerous side effects. The identification of new biotargets is essential for the development of more efficient therapeutic alternatives. Inhibition of sirtuins from Trypanosoma brucei and Leishmania ssp. showed promising results, indicating that these enzymes may be considered as targets for drug discovery in parasite infection. Here, we report the first characterization of the two sirtuins present in T. cruzi. Methodology Dm28c epimastigotes that inducibly overexpress TcSIR2RP1 and TcSIR2RP3 were constructed and used to determine their localizations and functions. These transfected lines were tested regarding their acetylation levels, proliferation and metacyclogenesis rate, viability when treated with sirtuin inhibitors and in vitro infectivity. Conclusion TcSIR2RP1 and TcSIR2RP3 are cytosolic and mitochondrial proteins respectively. Our data suggest that sirtuin activity is important for the proliferation of T. cruzi replicative forms, for the host cell-parasite interplay, and for differentiation among life-cycle stages; but each one performs different roles in most of these processes. Our results increase the knowledge on the localization and function of these enzymes, and the overexpressing T. cruzi strains we obtained can be useful tools for experimental screening of trypanosomatid sirtuin inhibitors. Sirtuins are a family of deacetylases, evolutionary conserved from bacteria to mammals. They participate in the regulation of a wide range of nuclear, cytoplasmic and mitochondrial pathways, and are considered pro-life enzymes. In the last years the search for sirtuin inhibitors was a very active field of research, with potential applications in a large number of pathologies, including parasitic diseases. We are interested in the study of the two sirtuins present in the protozoan parasite Trypanosoma cruzi, being our objective to understand their function. First, we determined the localization of these enzymes in the parasite: TcSIR2RP1 is a cytoplasmic enzyme and TcSIR2RP3 localizes in the mitochondrion. When we overexpress cytoplasmic TcSIR2RP1, the transgenic parasites differentiate to metacyclic trypomastigotes and infect mammalian cells more efficiently. In contrast, the overexpression of mitochondrial TcSIR2RP3 does not affect metacyclogenesis but modifies epimastigotes growth and slightly increases the proliferation of the parasite in the intracellular stage. We also used these transgenic lines to test their sensibility to previously described sirtuin inhibitors.
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13
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Irfan M, Aneja B, Yadava U, Khan SI, Manzoor N, Daniliuc CG, Abid M. Synthesis, QSAR and anticandidal evaluation of 1,2,3-triazoles derived from naturally bioactive scaffolds. Eur J Med Chem 2015; 93:246-54. [DOI: 10.1016/j.ejmech.2015.02.007] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2014] [Revised: 02/02/2015] [Accepted: 02/06/2015] [Indexed: 11/26/2022]
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14
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Abstract
Sirtuins are a class of enzymes with nicotinamide adenine dinucleotide (NAD)-dependent protein lysine deacylase function. By deacylating various substrate proteins, including histones, transcription factors, and metabolic enzymes, sirtuins regulate various biological processes, such as transcription, cell survival, DNA damage and repair, and longevity. Small molecules that can inhibit sirtuins have been developed and many of them have shown anticancer activity. Here, we summarize the major biological findings that connect sirtuins to cancer and the different types of sirtuin inhibitors developed. Interestingly, biological data suggest that sirtuins have both tumor-suppressing and tumor-promoting roles. However, most pharmacological studies with small-molecule inhibitors suggest that inhibiting sirtuins has anticancer effects. We discuss possible explanations for this discrepancy and suggest possible future directions to further establish sirtuin inhibitors as anticancer agents.
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15
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Masood MM, Pillalamarri VK, Irfan M, Aneja B, Jairajpuri MA, Zafaryab M, Rizvi MMA, Yadava U, Addlagatta A, Abid M. Diketo acids and their amino acid/dipeptidic analogues as promising scaffolds for the development of bacterial methionine aminopeptidase inhibitors. RSC Adv 2015. [DOI: 10.1039/c5ra03354c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Diketo acids and their peptidic analogues were designed and synthesised as bacterial MetAP inhibitors. In the enzymatic assay, the representative compound 5e showed excellent inhibition of bacterial MetAPs with no cytotoxicity.
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16
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Duffy MF, Selvarajah SA, Josling GA, Petter M. Epigenetic regulation of the Plasmodium falciparum genome. Brief Funct Genomics 2013; 13:203-16. [PMID: 24326119 DOI: 10.1093/bfgp/elt047] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Recent research has highlighted some unique aspects of chromatin biology in the malaria parasite Plasmodium falciparum. During its erythrocytic lifecycle P. falciparum maintains its genome primarily as unstructured euchromatin. Indeed there is no clear role for chromatin-mediated silencing of the majority of the developmentally expressed genes in P. falciparum. However discontinuous stretches of heterochromatin are critical for variegated expression of contingency genes that mediate key pathogenic processes in malaria. These range from invasion of erythrocytes and antigenic variation to solute transport and growth adaptation in response to environmental changes. Despite lack of structure within euchromatin the nucleus maintains functional compartments that regulate expression of many genes at the nuclear periphery, particularly genes with clonally variant expression. The typical components of the chromatin regulatory machinery are present in P. falciparum; however, some of these appear to have evolved novel species-specific functions, e.g. the dynamic regulation of histone variants at virulence gene promoters. The parasite also appears to have repeatedly acquired chromatin regulatory proteins through lateral transfer from endosymbionts and from the host. P. falciparum chromatin regulators have been successfully targeted with multiple drugs in laboratory studies; hopefully their functional divergence from human counterparts will allow the development of parasite-specific inhibitors.
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17
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Li H, Aneja R, Chaiken I. Click chemistry in peptide-based drug design. Molecules 2013; 18:9797-817. [PMID: 23959192 PMCID: PMC4155329 DOI: 10.3390/molecules18089797] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 08/09/2013] [Accepted: 08/12/2013] [Indexed: 12/27/2022] Open
Abstract
Click chemistry is an efficient and chemoselective synthetic method for coupling molecular fragments under mild reaction conditions. Since the advent in 2001 of methods to improve stereochemical conservation, the click chemistry approach has been broadly used to construct diverse chemotypes in both chemical and biological fields. In this review, we discuss the application of click chemistry in peptide-based drug design. We highlight how triazoles formed by click reactions have been used for mimicking peptide and disulfide bonds, building secondary structural components of peptides, linking functional groups together, and bioconjugation. The progress made in this field opens the way for synthetic approaches to convert peptides with promising functional leads into structure-minimized and more stable forms.
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Affiliation(s)
- Huiyuan Li
- Department of Biochemistry and Molecular Biology, College of Medicine, Drexel University, 245 N 15th Street, New College Building, Room 11102, Philadelphia, PA 19102, USA.
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18
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Thirumurugan P, Matosiuk D, Jozwiak K. Click Chemistry for Drug Development and Diverse Chemical–Biology Applications. Chem Rev 2013; 113:4905-79. [DOI: 10.1021/cr200409f] [Citation(s) in RCA: 1309] [Impact Index Per Article: 119.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Prakasam Thirumurugan
- Laboratory
of Medical Chemistry and Neuroengineering, Department of Chemistry, and ‡Department of
Synthesis and Chemical Technology of Pharmaceutical Substances, Medical University of Lublin, Lublin
20093, Poland
| | - Dariusz Matosiuk
- Laboratory
of Medical Chemistry and Neuroengineering, Department of Chemistry, and ‡Department of
Synthesis and Chemical Technology of Pharmaceutical Substances, Medical University of Lublin, Lublin
20093, Poland
| | - Krzysztof Jozwiak
- Laboratory
of Medical Chemistry and Neuroengineering, Department of Chemistry, and ‡Department of
Synthesis and Chemical Technology of Pharmaceutical Substances, Medical University of Lublin, Lublin
20093, Poland
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19
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Feldman JL, Dittenhafer-Reed KE, Denu JM. Sirtuin catalysis and regulation. J Biol Chem 2012; 287:42419-27. [PMID: 23086947 DOI: 10.1074/jbc.r112.378877] [Citation(s) in RCA: 167] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Sirtuins are a family of NAD(+)-dependent protein deacetylases/deacylases that dynamically regulate transcription, metabolism, and cellular stress response. Their general positive link with improved health span in mammals, potential regulation of pathways mediated by caloric restriction, and growing links to human disease have spurred interest in therapeutics that target their functions. Here, we review the current understanding of the chemistry of catalysis, biological targets, and endogenous regulation of sirtuin activity. We discuss recent efforts to generate small-molecule regulators of sirtuin activity.
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Affiliation(s)
- Jessica L Feldman
- Department of Biomolecular Chemistry and the Wisconsin Institute for Discovery, University of Wisconsin, Madison, Wisconsin 53715, USA.
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20
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Pierce RJ, Dubois-Abdesselem F, Caby S, Trolet J, Lancelot J, Oger F, Bertheaume N, Roger E. Chromatin regulation in schistosomes and histone modifying enzymes as drug targets. Mem Inst Oswaldo Cruz 2012; 106:794-801. [PMID: 22124550 DOI: 10.1590/s0074-02762011000700003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Accepted: 07/29/2011] [Indexed: 11/22/2022] Open
Abstract
Only one drug is currently available for the treatment and control of schistosomiasis and the increasing risk of selecting strains of schistosome that are resistant to praziquantel means that the development of new drugs is urgent. With this objective we have chosen to target the enzymes modifying histones and in particular the histone acetyltransferases and histone deacetylases (HDAC). Inhibitors of HDACs (HDACi) are under intense study as potential anti-cancer drugs and act via the induction of cell cycle arrest and/or apoptosis. Schistosomes like other parasites can be considered as similar to tumours in that they maintain an intense metabolic activity and rate of cell division that is outside the control of the host. We have shown that HDACi can induce apoptosis and death of schistosomes maintained in culture and have set up a consortium (Schistosome Epigenetics: Targets, Regulation, New Drugs) funded by the European Commission with the aim of developing inhibitors specific for schistosome histone modifying enzymes as novel lead compounds for drug development.
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21
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Soto S, Vaz E, Dell'Aversana C, Álvarez R, Altucci L, de Lera ÁR. New synthetic approach to paullones and characterization of their SIRT1 inhibitory activity. Org Biomol Chem 2012; 10:2101-12. [PMID: 22286328 DOI: 10.1039/c2ob06695e] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A series of 7,12-dihydroindolo[3,2-d][1]benzazepine-6(5H)-ones (paullones) substituted at C9/C10 (Br) and C2 (Me, CF(3), CO(2)Me) have been synthesized by a one-pot Suzuki-Miyaura cross-coupling of an o-aminoarylboronic acid and methyl 2-iodoindoleacetate followed by intramolecular amide formation. Other approaches to the paullone scaffold based on Pd-catalyzed C-H activation were unsuccessful. In vitro enzymatic assay with recombinant human SIRT-1 indicated a strong inhibitory profile for the series, in particular the analogue with a methoxycarbonyl group at C2 and a bromine at C9. These compounds are, in general, inducers of granulocyte differentiation of the U937 acute leukemia cell line and cause a marked increase in pre-G1 of the cell cycle.
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Affiliation(s)
- Sara Soto
- Departamento de Química Orgánica, Facultade de Química, Universidade de Vigo, Lagoas-Marcosende, 36310 Vigo, Spain
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22
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Güell I, Micaló L, Cano L, Badosa E, Ferre R, Montesinos E, Bardají E, Feliu L, Planas M. Peptidotriazoles with antimicrobial activity against bacterial and fungal plant pathogens. Peptides 2012; 33:9-17. [PMID: 22198367 DOI: 10.1016/j.peptides.2011.12.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2011] [Revised: 12/07/2011] [Accepted: 12/07/2011] [Indexed: 12/31/2022]
Abstract
We designed and prepared peptidotriazoles based on the antimicrobial peptide BP100 (LysLysLeuPheLysLysIleLeuLysTyrLeu-NH(2)) by introducing a triazole ring in the peptide backbone or onto the side chain of a selected residue. These compounds were screened for their in vitro growth inhibition of bacterial and fungal phytopathogens, and for their cytotoxic effects on eukaryotic cells and tobacco leaves. Their proteolytic susceptibility was also analyzed. The antibacterial activity and the hemolysis were influenced by the amino acid that was modified with the triazole as well as by the absence of presence of a substituent in this heterocyclic ring. We identified sequences active against the bacteria Xanthomonas axonopodis pv. vesicatoria, Erwinia amylovora, Pseudomonas syringae pv. syringae (MIC of 1.6-12.5 μM), and against the fungi Fusarium oxysporum (MIC<6.2-12.5 μM) with low hemolytic activity (0-23% at 50 μM), high stability to protease digestion and no phytotoxicity. These peptidotriazoles constitute good candidates to design new antimicrobial agents.
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Affiliation(s)
- Imma Güell
- LIPPSO, Department of Chemistry, University of Girona, Campus Montilivi, E-17071 Girona, Spain
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23
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Abstract
Parasitic diseases cause significant global morbidity and mortality, particularly in underdeveloped regions of the world. Malaria alone causes ~800000 deaths each year, with children and pregnant women being at highest risk. There is no licensed vaccine available for any human parasitic disease and drug resistance is compromising the efficacy of many available anti-parasitic drugs. This is driving drug discovery research on new agents with novel modes of action. Histone deacetylase (HDAC) inhibitors are being investigated as drugs for a range of diseases, including cancers and infectious diseases such as HIV/AIDS, and several parasitic diseases. This review focuses on the current state of knowledge of HDAC inhibitors targeted to the major human parasitic diseases malaria, schistosomiasis, trypanosomiasis, toxoplasmosis and leishmaniasis. Insights are provided into the unique challenges that will need to be considered if HDAC inhibitors are to be progressed towards clinical development as potential new anti-parasitic drugs.
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Affiliation(s)
- Katherine T Andrews
- Eskitis Institute for Cell and Molecular Therapies, Griffith University, Nathan, Queensland, Australia.
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24
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He XP, Deng Q, Gao LX, Li C, Zhang W, Zhou YB, Tang Y, Shi XX, Xie J, Li J, Chen GR, Chen K. Facile fabrication of promising protein tyrosine phosphatase (PTP) inhibitor entities based on ‘clicked’ serine/threonine–monosaccharide hybrids. Bioorg Med Chem 2011; 19:3892-900. [DOI: 10.1016/j.bmc.2011.05.049] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 05/21/2011] [Accepted: 05/23/2011] [Indexed: 01/05/2023]
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25
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Blum CA, Ellis JL, Loh C, Ng PY, Perni RB, Stein RL. SIRT1 Modulation as a Novel Approach to the Treatment of Diseases of Aging. J Med Chem 2010; 54:417-32. [DOI: 10.1021/jm100861p] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Charles A. Blum
- Sirtris, A GSK Company, 200 Technology Square, Cambridge, Massachusetts 02139, United States
| | - James L. Ellis
- Sirtris, A GSK Company, 200 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Christine Loh
- Sirtris, A GSK Company, 200 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Pui Yee Ng
- Sirtris, A GSK Company, 200 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Robert B. Perni
- Sirtris, A GSK Company, 200 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Ross L. Stein
- Sirtris, A GSK Company, 200 Technology Square, Cambridge, Massachusetts 02139, United States
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26
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Synthesis of Hybrid Peptidomimetics and Neoglycoconjugates Employing Click Protocol: Dual Utility of Poc-Group for Inserting Carbamate-Triazole Units into Peptide Backbone. Int J Pept Res Ther 2010. [DOI: 10.1007/s10989-010-9228-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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