1
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Sürmeli D, Dinsmore TC, Anchukaitis HM, Montanari V, Beinborn M, Kumar K. Molecular design of peptide therapeutics via N-terminal modification. Methods Enzymol 2024; 698:195-219. [PMID: 38886032 DOI: 10.1016/bs.mie.2024.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Glucagon-like peptide-1, glucose-dependent insulinotropic polypeptide, and glucagon are three naturally occurring peptide hormones that mediate glucoregulation. Several agonists representing appropriately modified native ligands have been developed to maximize metabolic benefits with reduced side-effects and many have entered the clinic as type 2 diabetes and obesity therapeutics. In this work, we describe strategies for improving the stability of the peptide ligands by making them refractory to dipeptidyl peptidase-4 catalyzed hydrolysis and inactivation. We describe a series of alkylations with variations in size, shape, charge, polarity, and stereochemistry that are able to engender full activity at the receptor(s) while simultaneously resisting enzyme-mediated degradation. Utilizing this strategy, we offer a novel method of modulating receptor activity and fine-tuning pharmacology without a change in peptide sequence.
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Affiliation(s)
- Damla Sürmeli
- Department of Chemistry, Tufts University, Medford, MA, United States
| | | | | | | | - Martin Beinborn
- Department of Chemistry, Tufts University, Medford, MA, United States
| | - Krishna Kumar
- Department of Chemistry, Tufts University, Medford, MA, United States.
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2
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Bosbach C, Gatzemeier LM, Bloch von Blottnitz KI, König A, Diederichsen U, Steinem C, Outeiro TF. Chemical synthesis of site-selective advanced glycation end products in α-synuclein and its fragments. Org Biomol Chem 2024; 22:2670-2676. [PMID: 38483440 DOI: 10.1039/d4ob00225c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Advanced glycation end products (AGEs) arise from the Maillard reaction between dicarbonyls and proteins, nucleic acids, or specific lipids. Notably, AGEs are linked to aging and implicated in various disorders, spanning from cancer to neurodegenerative diseases. While dicarbonyls like methylglyoxal preferentially target arginine residues, lysine-derived AGEs, such as N(6)-(1-carboxymethyl)lysine (CML) and N(6)-(1-carboxyethyl)lysine (CEL), are also abundant. Predicting protein glycation in vivo proves challenging due to the intricate nature of glycation reactions. In vitro, glycation is difficult to control, especially in proteins that harbor multiple glycation-prone amino acids. α-Synuclein (aSyn), pivotal in Parkinson's disease and synucleinopathies, has 15 lysine residues and is known to become glycated at multiple lysine sites. To understand the influence of glycation in specific regions of aSyn on its behavior, a strategy for site-specific glycated protein production is imperative. To fulfill this demand, we devised a synthetic route integrating solid-phase peptide synthesis, orthogonal protection of amino acid side-chain functionalities, and reductive amination strategies. This methodology yielded two disease-related N-terminal peptide fragments, each featuring five and six CML and CEL modifications, alongside a full-length aSyn protein containing a site-selective E46CEL modification. Our synthetic approach facilitates the broad introduction of glycation motifs at specific sites, providing a foundation for generating glycated forms of synucleinopathy-related and other disease-relevant proteins.
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Affiliation(s)
- Clara Bosbach
- Institute of Organic and Biomolecular Chemistry, Georg-August-University Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, Waldweg 33, 37073 Göttingen, Germany.
| | - Luisa Maria Gatzemeier
- Institute of Organic and Biomolecular Chemistry, Georg-August-University Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, Waldweg 33, 37073 Göttingen, Germany.
| | - Katja Ilme Bloch von Blottnitz
- Institute of Organic and Biomolecular Chemistry, Georg-August-University Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Annekatrin König
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, Waldweg 33, 37073 Göttingen, Germany.
| | - Ulf Diederichsen
- Institute of Organic and Biomolecular Chemistry, Georg-August-University Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Claudia Steinem
- Institute of Organic and Biomolecular Chemistry, Georg-August-University Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Tiago Fleming Outeiro
- Department of Experimental Neurodegeneration, Center for Biostructural Imaging of Neurodegeneration, University Medical Center Göttingen, Waldweg 33, 37073 Göttingen, Germany.
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Framlington Place, Newcastle Upon Tyne, NE2 4HH, UK
- Max Planck Institute for Multidisciplinary Sciences, Hermann-Rein-Straße 3, 37075 Göttingen, Germany
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3
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Sicinski KM, Sürmeli D, Du J, Raman VS, Montanari V, Lee M, Harwood BN, Kopin AS, Beinborn M, Kumar K. A Robust Platform for the Molecular Design of Potent, Protease-Stable, Long-Acting GIP Analogues. J Med Chem 2024. [PMID: 38458970 DOI: 10.1021/acs.jmedchem.4c00111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
Glucose-dependent insulinotropic peptide (GIP) is a 42-amino acid peptide hormone that regulates postprandial glucose levels. GIP binds to its cognate receptor, GIPR, and mediates metabolic physiology by improved insulin sensitivity, β-cell proliferation, increased energy consumption, and stimulated glucagon secretion. Dipeptidyl peptidase-4 (DPP4) catalyzes the rapid inactivation of GIP within 6 min in vivo. Here, we report a molecular platform for the design of GIP analogues that are refractory to DPP4 action and exhibit differential activation of the receptor, thus offering potentially hundreds of GIP-based compounds to fine-tune pharmacology. The lead compound from our studies, which harbored a combination of N-terminal alkylation and side-chain lipidation, was equipotent and retained full efficacy at GIPR as the native peptide, while being completely refractory toward DPP4, and was resistant to trypsin. The GIP analogue identified from these studies was further evaluated in vivo and is one of the longest-acting GIPR agonists to date.
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Affiliation(s)
- Kathleen M Sicinski
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Damla Sürmeli
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Jasper Du
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Venkata S Raman
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Vittorio Montanari
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Minhee Lee
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Benjamin N Harwood
- Molecular Cardiology Research Institute, Tufts Medical Center, Boston, Massachusetts 02111, United States
| | - Alan S Kopin
- Molecular Cardiology Research Institute, Tufts Medical Center, Boston, Massachusetts 02111, United States
| | - Martin Beinborn
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
- Molecular Pharmacology Research Center, Tufts Medical Center, Boston, Massachusetts 02111, United States
| | - Krishna Kumar
- Department of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
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4
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Supramolecular approaches for insulin stabilization without prolonged duration of action. Acta Pharm Sin B 2023; 13:2281-2290. [DOI: 10.1016/j.apsb.2023.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/05/2022] [Accepted: 11/08/2022] [Indexed: 01/13/2023] Open
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5
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Sahtel S, Maamer CB, Besbes R, Vrancken E, Campagne JM. Straightforward synthesis of various chiral pyrimidines bearing a stereogenic center adjacent to the C-2 position, including C-terminal peptide isosteres. Amino Acids 2022; 54:1519-1526. [PMID: 36229670 DOI: 10.1007/s00726-022-03192-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/24/2022] [Indexed: 11/30/2022]
Abstract
The present study describes an efficient access to enantioenriched pyrimidines' derivatives from readily available Boc-AA-NH2 and β-enaminones. This strategy allows the synthesis of a large variety of chiral pyrimidines (18 examples) with good yields from the chiral pool. In the case of peptide isosteres, this procedure proved to be highly stereoretentive and paves the way to the construction of C-terminal modified peptidomimetics as illustrated in the synthesis of two original pyrimidines containing pseudo-dipeptides.
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Affiliation(s)
- Sami Sahtel
- Institut Charles Gerhardt Montpellier, University of Montpellier, CNRS, ENSCM, 34000, Montpellier, France.,Faculty of Sciences of Tunis, Department of Chemistry, Laboratory of Analytical Chemistry and Electrochemistry, University of Tunis-El Manar, Campus Universities, 2092, Tunis El-Manar, Tunisia
| | - Chayma Ben Maamer
- Institut Charles Gerhardt Montpellier, University of Montpellier, CNRS, ENSCM, 34000, Montpellier, France.,Faculty of Sciences of Tunis, Department of Chemistry, Laboratory of Analytical Chemistry and Electrochemistry, University of Tunis-El Manar, Campus Universities, 2092, Tunis El-Manar, Tunisia
| | - Rafâa Besbes
- Faculty of Sciences of Tunis, Department of Chemistry, Laboratory of Analytical Chemistry and Electrochemistry, University of Tunis-El Manar, Campus Universities, 2092, Tunis El-Manar, Tunisia
| | - Emmanuel Vrancken
- Institut Charles Gerhardt Montpellier, University of Montpellier, CNRS, ENSCM, 34000, Montpellier, France.
| | - Jean-Marc Campagne
- Institut Charles Gerhardt Montpellier, University of Montpellier, CNRS, ENSCM, 34000, Montpellier, France
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6
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Ben Haj Salah K, Terzani F, Pietri M, Zanato C, Chelain E, Pytkowicz J. Highly Stereoselective Multigram Scale Synthesis of (3S,4S)-Statine and (3S,4S)-N-Benzylstatine. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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7
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Fukuda Y, Yokomine M, Kuroda D, Tsumoto K, Morimoto J, Sando S. Peptoid-based reprogrammable template for cell-permeable inhibitors of protein-protein interactions. Chem Sci 2021; 12:13292-13300. [PMID: 34777747 PMCID: PMC8528041 DOI: 10.1039/d1sc01560e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 08/02/2021] [Indexed: 12/27/2022] Open
Abstract
The development of inhibitors of intracellular protein–protein interactions (PPIs) is of great significance for drug discovery, but the generation of a cell-permeable molecule with high affinity to protein is challenging. Oligo(N-substituted glycines) (oligo-NSGs), referred to as peptoids, are attractive as potential intracellular PPI inhibitors owing to their high membrane permeability. However, their intrinsically flexible backbones make the rational design of inhibitors difficult. Here, we propose a peptoid-based rational approach to develop cell-permeable PPI inhibitors using oligo(N-substituted alanines) (oligo-NSAs). The rigid structures of oligo-NSAs enable independent optimization of each N-substituent to improve binding affinity and membrane permeability, while preserving the backbone shape. A molecule with optimized N-substituents inhibited a target PPI in cells, which demonstrated the utility of oligo-NSA as a reprogrammable template to develop intracellular PPI inhibitors. A peptoid-based modular approach using oligo(N-substituted alanine) as a reprogrammable template enables independent optimization of N-substituents and facile development of cell-permeable inhibitors of protein–protein interactions.![]()
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Affiliation(s)
- Yasuhiro Fukuda
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Marin Yokomine
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Daisuke Kuroda
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan .,Department of Bioengineering, Graduate School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Kouhei Tsumoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan .,Department of Bioengineering, Graduate School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan.,Institute of Medical Science, The University of Tokyo 4-6-1, Shirokanedai, Minato-ku Tokyo 108-8639 Japan
| | - Jumpei Morimoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Shinsuke Sando
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan .,Department of Bioengineering, Graduate School of Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
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8
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Sicinski K, Montanari V, Raman VS, Doyle JR, Harwood BN, Song YC, Fagan MP, Rios M, Haines DR, Kopin AS, Beinborn M, Kumar K. A Non-Perturbative Molecular Grafting Strategy for Stable and Potent Therapeutic Peptide Ligands. ACS CENTRAL SCIENCE 2021; 7:454-466. [PMID: 33791428 PMCID: PMC8006168 DOI: 10.1021/acscentsci.0c01237] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Indexed: 06/12/2023]
Abstract
The gut-derived incretin hormone, glucagon-like peptide-1 (GLP1), plays an important physiological role in attenuating post-prandial blood glucose excursions in part by amplifying pancreatic insulin secretion. Native GLP1 is rapidly degraded by the serine protease, dipeptidyl peptidase-4 (DPP4); however, enzyme-resistant analogues of this 30-amino-acid peptide provide an effective therapy for type 2 diabetes (T2D) and can curb obesity via complementary functions in the brain. In addition to its medical relevance, the incretin system provides a fertile arena for exploring how to better separate agonist function at cognate receptors versus susceptibility of peptides to DPP4-induced degradation. We have discovered that novel chemical decorations can make GLP1 and its analogues completely DPP4 resistant while fully preserving GLP1 receptor activity. This strategy is also applicable to other therapeutic ligands, namely, glucose-dependent insulinotropic polypeptide (GIP), glucagon, and glucagon-like peptide-2 (GLP2), targeting the secretin family of receptors. The versatility of the approach offers hundreds of active compounds based on any template that target these receptors. These observations should allow for rapid optimization of pharmacological properties and because the appendages are in a position crucial to receptor stimulation, they proffer the possibility of conferring "biased" signaling and in turn minimizing side effects.
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Affiliation(s)
- Kathleen
M. Sicinski
- Department
of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Vittorio Montanari
- Department
of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Venkata S. Raman
- Department
of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Jamie R. Doyle
- Molecular
Cardiology Research Institute, Tufts Medical
Center, Boston, Massachusetts 02111, United States
| | - Benjamin N. Harwood
- Molecular
Cardiology Research Institute, Tufts Medical
Center, Boston, Massachusetts 02111, United States
| | - Yi Chi Song
- Department
of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
| | - Micaella P. Fagan
- Department
of Neuroscience, Tufts University School
of Medicine, Boston, Massachusetts 02111, United States
| | - Maribel Rios
- Department
of Neuroscience, Tufts University School
of Medicine, Boston, Massachusetts 02111, United States
| | - David R. Haines
- Department of Chemistry, Wellesley College, Wellesley, Massachusetts 02481, United States
| | - Alan S. Kopin
- Molecular
Cardiology Research Institute, Tufts Medical
Center, Boston, Massachusetts 02111, United States
| | - Martin Beinborn
- Department
of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
- Molecular
Cardiology Research Institute, Tufts Medical
Center, Boston, Massachusetts 02111, United States
| | - Krishna Kumar
- Department
of Chemistry, Tufts University, Medford, Massachusetts 02155, United States
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9
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On-resin multicomponent protocols for biopolymer assembly and derivatization. Nat Protoc 2021; 16:561-578. [PMID: 33473197 DOI: 10.1038/s41596-020-00445-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 10/13/2020] [Indexed: 01/29/2023]
Abstract
Solid-phase synthesis represents the methodological showcase for technological advances such as split-and-pool combinatorial chemistry and the automated synthesis of peptides, nucleic acids and polysaccharides. These strategies involve iterative coupling cycles that do not generate functional diversity besides that incorporated by the amino acids, nucleosides and monosaccharide building blocks. In sharp contrast, multicomponent reactions (MCRs) are traditionally used to generate both skeletal and appendage diversity in short, batchwise procedures. On-resin MCRs have traditionally been employed for the construction of heterocycle and peptidomimetic libraries, but that scenario has changed recently, and today the focus is more on the solid-phase derivatization of peptides and oligonucleotides. This review presents relevant experimental details and addresses the synthetic scope of such on-resin multicomponent protocols employed to accomplish specific biopolymer covalent modifications that are practically inviable by traditional solution-phase methodologies. Recommendations are provided to facilitate the implementation of solid-supported protocols and avoid possible pitfalls associated with the selection of the polymeric resin, the solvent and the order and amount of the reagents employed. We describe procedures comprising the multicomponent lipidation, biotinylation and labeling of both termini and the side chains, as well as the use of MCRs in the traceless on-resin synthesis of ligated and cyclic peptides. Solid-phase protocols for the assembly of α-helical and parallel β-sheet peptides as well as hybrid peptide-peptoid and peptide-peptide nucleic acid architectures are described. Finally, the solid-supported multicomponent derivatization of DNA oligonucleotides is illustrated as part of the DNA-encoded library technology relying on MCR-derived heterocyclic compounds.
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10
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Li Z, Fu X, Huang S, Sun J, Li Z. Oligo(β-peptoid)s with Backbone Chirality from Aspartic Acid Derivatives: Synthesis and Property Investigation. ACS OMEGA 2020; 5:33125-33132. [PMID: 33403274 PMCID: PMC7774267 DOI: 10.1021/acsomega.0c04726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 12/04/2020] [Indexed: 06/12/2023]
Abstract
Poly(β-peptoid)s (N-substituted poly-β-alanines) are an intriguing class of pseudopeptidic materials for biomedical applications, but the polymers prepared by solution polymerization have restricted diversity and functionality due to synthetic difficulty. Synthesis of structurally diverse poly(β-peptoid)s is highly desirable yet challenging. Herein, we report a new approach to synthesize skeletal chiral β-peptoid polymers from readily available aspartic acid derivatives. Two types of N-substituted β3-homoalanine monomers, i.e., N-(methyl propionate)-Asp-OMe ( N MeP-Asp-OMe) and N-(tert-butyl propionate)-Asp-OMe ( N tBuP-Asp-OMe), were synthesized in high yield via an aza-Michael addition reaction between l-aspartic acid-1-methyl ester (l-Asp-OMe) and acrylate species. Both N-substituted β3-homoalanines can be readily converted into polymerizable N-substituted β3-homoalanine N-carboxyanhydrides (β-NNCAs). Subsequent ring-opening polymerization (ROP) of these β-NNCA monomers provides access to oligo(β-peptoid)s and mPEG-poly(β-peptoid) diblocks with backbone chirality. Their conformations were preliminarily studied by circular dichroism (CD) spectra and Fourier transform infrared spectroscopy (FT-IR). The synthetic strategy would significantly facilitate the development of novel poly(β-peptoid)s with well-defined and diverse structures.
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Affiliation(s)
- Zheng Li
- Key
Laboratory of Biobased Polymer Materials, Shandong Provincial Education
Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xiaohui Fu
- Key
Laboratory of Biobased Polymer Materials, Shandong Provincial Education
Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Saixi Huang
- Key
Laboratory of Biobased Polymer Materials, Shandong Provincial Education
Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jing Sun
- Key
Laboratory of Biobased Polymer Materials, Shandong Provincial Education
Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Zhibo Li
- Key
Laboratory of Biobased Polymer Materials, Shandong Provincial Education
Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- College
of Chemical Engineering, Qingdao University
of Science and Technology, Qingdao 266042, China
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11
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Morimoto J, Sando S. Peptoids with Substituents on the Backbone Carbons as Conformationally Constrained Synthetic Oligoamides. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.1076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Shinsuke Sando
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo
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12
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Abboud SA, Aucagne V. An optimized protocol for the synthesis of N-2-hydroxybenzyl-cysteine peptide crypto-thioesters. Org Biomol Chem 2020; 18:8199-8208. [PMID: 33034311 DOI: 10.1039/d0ob01737j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We herein report a robust upgraded synthetic protocol for the synthesis of N-Hnb-Cys crypto-thioester peptides, useful building blocks for segment-based chemical protein synthesis through native chemical ligation. We recently observed the formation of an isomeric co-product when using a different solid support than the originally-reported one, thus hampering the general applicability of the methodology. We undertook a systematic study to characterize this compound and identify the parameters favouring its formation. We show here that epimerization from l- to d-cysteine occurred during the key solid-supported reductive amination step. We also observed the formation of imidazolidinones by-products arising from incomplete reduction of the imine. Structural characterization combined with the deciphering of underlying reaction mechanisms allowed us to optimize conditions that abolished the formation of all these side-products.
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Affiliation(s)
- Skander A Abboud
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Rue Charles Sadron, 45071, Orléans cedex 2, France.
| | - Vincent Aucagne
- Centre de Biophysique Moléculaire, CNRS UPR 4301, Rue Charles Sadron, 45071, Orléans cedex 2, France.
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13
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Paciaroni NG, Ndungu JM, Kodadek T. Solid-phase synthesis of DNA-encoded libraries via an "aldehyde explosion" strategy. Chem Commun (Camb) 2020; 56:4656-4659. [PMID: 32215395 PMCID: PMC7298663 DOI: 10.1039/d0cc01474e] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We report chemistry suitable for the solid-phase synthesis of DNA-encoded libraries with an unusually high level of structural diversity. The strategy involves "exploding" an immobilized aldehyde into a plethora of different functional groups under DNA-compatible conditions.
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Affiliation(s)
- Nicholas G Paciaroni
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA.
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14
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Szymaszkiewicz A, Włodarczyk J, Mazur M, Olczak J, Fichna J, Zielińska M. Cyclic derivatives of morphiceptin possess anti-transit effect in the gastrointestinal tract and alleviate abdominal pain in mice. Pharmacol Rep 2020; 72:314-321. [PMID: 32125684 DOI: 10.1007/s43440-020-00084-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 02/11/2020] [Accepted: 02/20/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Irritable bowel syndrome (IBS) is a chronic condition with recurring gastrointestinal (GI) symptoms: altered motility and abdominal pain. As endogenous opioid system participates in pain perception and in the control of GI peristalsis, opioids have been proposed as a promising therapy in IBS. In a previous study, we observed that morphiceptin derivative, P-317 (Dmt-cyclo-(D-Lys-Phe-D-Pro-Asp)-NH2), presents promising features to be applied in IBS. In this project, we tested whether modifications in cyclic morphiceptin-based structure: fluorination (compound 1) or peptide bond reduction (compound 2) improve pharmacological effect. METHODS We evaluated tested derivatives in the mouse GI system under physiological (GI transit) and pathophysiological (castor oil diarrhea, stress-induced hypermotility, visceral pain) conditions. RESULTS Both compounds prolonged GI transit. Compound 1 and P-317 inhibited upper GI transit and motility of the colon; compound 2 remained inactive. Compound 1 and P-317 inhibited hypermotility in stressed mice and delayed the acute diarrhea in comparison to control. Only P-317 exerted antinociceptive effect. None of tested derivatives, similar to P-317, affected locomotor activity. CONCLUSIONS Compound 1 is equally effective as P-317 in the mouse GI tract. The peptide bond reduction decreased the activity of compound 2. Fluorination appears to be an efficient way to increase the effects of morphiceptin analogs in the GI tract.
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Affiliation(s)
- Agata Szymaszkiewicz
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| | - Jakub Włodarczyk
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| | - Marzena Mazur
- TriMen Chemicals, Lodz, Poland
- OncoArendi Therapeutics SA, Warsaw, Poland
| | - Jacek Olczak
- TriMen Chemicals, Lodz, Poland
- OncoArendi Therapeutics SA, Warsaw, Poland
| | - Jakub Fichna
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| | - Marta Zielińska
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland.
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15
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Rahim A, Sahariah B, Baruah K, Deka JKR, Sarma BK. Solid-Phase Synthesis of Hybrid 2,5-Diketopiperazines Using Acylhydrazide, Carbazate, Semicarbazide, Amino Acid, and Primary Amine Submonomers. J Org Chem 2020; 85:2927-2937. [PMID: 32000488 DOI: 10.1021/acs.joc.9b02083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the solid-phase synthesis of N,N'-di(acylamino)-2,5-diketopiperazine, an acylhydrazide-based conformationally rigid 2,5-DKP scaffold having exocyclic N-N bonds. We also show that different combinations of acylhydrazides, carbazates, semicarbazides, amino acids, and primary amines can be used to synthesize a highly diverse collection of hybrid DKP molecules via the solid-phase submonomer synthesis route. Finally, we show incorporation of a methyl substituent in one of the carbon atoms of the DKP ring to generate chiral daa- and hybrid-DKPs without compromising the synthetic efficiency.
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Affiliation(s)
- Abdur Rahim
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Uttar Pradesh 201314, India
| | - Biswajit Sahariah
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Uttar Pradesh 201314, India
| | - Kalpita Baruah
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Uttar Pradesh 201314, India
| | - Jugal Kishore Rai Deka
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Uttar Pradesh 201314, India
| | - Bani Kanta Sarma
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
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16
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Morimoto J, Fukuda Y, Kuroda D, Watanabe T, Yoshida F, Asada M, Nakamura T, Senoo A, Nagatoishi S, Tsumoto K, Sando S. A Peptoid with Extended Shape in Water. J Am Chem Soc 2019; 141:14612-14623. [DOI: 10.1021/jacs.9b04371] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jumpei Morimoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yasuhiro Fukuda
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Daisuke Kuroda
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takumu Watanabe
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Fumihiko Yoshida
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Mizue Asada
- Department of Materials Molecular Science, Institute for Molecular Science, 38 Nishigo-naka, Myodaiji, Okazaki 444-8585, Japan
| | - Toshikazu Nakamura
- Department of Materials Molecular Science, Institute for Molecular Science, 38 Nishigo-naka, Myodaiji, Okazaki 444-8585, Japan
| | - Akinobu Senoo
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Satoru Nagatoishi
- Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Kouhei Tsumoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
| | - Shinsuke Sando
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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17
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18
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Ricardo MG, Marrrero JF, Valdés O, Rivera DG, Wessjohann LA. A Peptide Backbone Stapling Strategy Enabled by the Multicomponent Incorporation of Amide N-Substituents. Chemistry 2018; 25:769-774. [PMID: 30412333 DOI: 10.1002/chem.201805318] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Indexed: 12/12/2022]
Abstract
The multicomponent backbone N-modification of peptides on solid-phase is presented as a powerful and general method to enable peptide stapling at the backbone instead of the side chains. This work shows that a variety of functionalized N-substituents suitable for backbone stapling can be readily introduced by means of on-resin Ugi multicomponent reactions conducted during solid-phase peptide synthesis. Diverse macrocyclization chemistries were implemented with such backbone N-substituents, including the ring-closing metathesis, lactamization, and thiol alkylation. The backbone N-modification method was also applied to the synthesis of α-helical peptides by linking N-substituents to the peptide N-terminus, thus featuring hydrogen-bond surrogate structures. Overall, the strategy proves useful for peptide backbone macrocyclization approaches that show promise in peptide drug discovery.
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Affiliation(s)
- Manuel G Ricardo
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120, Halle/Saale, Germany.,Center for Natural Products Research, Faculty of Chemistry, University of Havana, Zapata y G, 10400, La Habana, Cuba
| | - Javiel F Marrrero
- Center for Natural Products Research, Faculty of Chemistry, University of Havana, Zapata y G, 10400, La Habana, Cuba
| | - Oscar Valdés
- Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Talca, 3460000, Chile
| | - Daniel G Rivera
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120, Halle/Saale, Germany.,Center for Natural Products Research, Faculty of Chemistry, University of Havana, Zapata y G, 10400, La Habana, Cuba
| | - Ludger A Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120, Halle/Saale, Germany
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19
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Kaminker* R, Anastasaki A, Gutekunst WR, Luo Y, Lee S, Hawker* CJ. Tuning of protease resistance in oligopeptides through N-alkylation. Chem Commun (Camb) 2018; 54:9631-9634. [PMID: 30095837 PMCID: PMC6141190 DOI: 10.1039/c8cc04407d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
N-Methylation of amino acids is an effective way to create protease resistance in both natural and synthetic peptides. However, alkyl substituents other than N-methyl have not been extensively studied. Here, we prepare and examine a series of N-substituted peptides in which the size and length of the alkyl group is modulated. These design insights provide a unique and modular handle for tuning proteolysis in oligopeptides.
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Affiliation(s)
- R. Kaminker*
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States. ;
| | - A. Anastasaki
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States. ;
| | - W. R. Gutekunst
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States. ;
| | - Y. Luo
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States. ;
| | - S. Lee
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States. ;
| | - C. J. Hawker*
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, United States. ;
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United Sates
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20
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Soor HS, Hansen J, Diaz DB, Appavoo S, Yudin AK. Solid-phase synthesis of peptide β-aminoboronic acids. Pept Sci (Hoboken) 2018. [DOI: 10.1002/pep2.24072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Harjeet S. Soor
- Davenport Research Laboratories, Department of Chemistry; University of Toronto; Toronto M5S 3H6 Canada
| | - Jonas Hansen
- Davenport Research Laboratories, Department of Chemistry; University of Toronto; Toronto M5S 3H6 Canada
| | - Diego B. Diaz
- Davenport Research Laboratories, Department of Chemistry; University of Toronto; Toronto M5S 3H6 Canada
| | - Solomon Appavoo
- Davenport Research Laboratories, Department of Chemistry; University of Toronto; Toronto M5S 3H6 Canada
| | - Andrei K. Yudin
- Davenport Research Laboratories, Department of Chemistry; University of Toronto; Toronto M5S 3H6 Canada
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21
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Morimoto J, Fukuda Y, Sando S. Solid-Phase Synthesis of β-Peptoids with Chiral Backbone Substituents Using Reductive Amination. Org Lett 2018; 19:5912-5915. [PMID: 29039680 DOI: 10.1021/acs.orglett.7b02909] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new submonomeric synthetic method of β-peptoids that allows introduction of chiral backbone substituents is established. The synthesis of β-peptoids with various backbone substituents on β-carbons and spectroscopic studies of synthesized oligomers are described.
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Affiliation(s)
- Jumpei Morimoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yasuhiro Fukuda
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shinsuke Sando
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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22
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Hartweg M, Edwards-Gayle CJC, Radvar E, Collis D, Reza M, Kaupp M, Steinkoenig J, Ruokolainen J, Rambo R, Barner-Kowollik C, Hamley IW, Azevedo HS, Becer CR. Ugi multicomponent reaction to prepare peptide–peptoid hybrid structures with diverse chemical functionalities. Polym Chem 2018. [DOI: 10.1039/c7py01953j] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sequence defined peptide–peptoid hybrids create new opportunities for self-assembled nano-structures.
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Affiliation(s)
- Manuel Hartweg
- School of Engineering and Materials Science
- Queen Mary University
- London
- UK
| | | | - Elham Radvar
- School of Engineering and Materials Science
- Queen Mary University
- London
- UK
| | - Dominic Collis
- School of Engineering and Materials Science
- Queen Mary University
- London
- UK
| | - Mehedi Reza
- Department of Applied Physics
- Aalto University
- Finland
| | - Michael Kaupp
- Macromolecular Architectures
- Institut für Technische Chemie und Polymerchemie
- Karlsruhe Institute of Technology (KIT)
- 76128 Karlsruhe
- Germany
| | - Jan Steinkoenig
- Macromolecular Architectures
- Institut für Technische Chemie und Polymerchemie
- Karlsruhe Institute of Technology (KIT)
- 76128 Karlsruhe
- Germany
| | | | | | - Christopher Barner-Kowollik
- Macromolecular Architectures
- Institut für Technische Chemie und Polymerchemie
- Karlsruhe Institute of Technology (KIT)
- 76128 Karlsruhe
- Germany
| | - Ian W. Hamley
- Department of Chemistry
- University of Reading
- Reading
- UK
| | - Helena S. Azevedo
- School of Engineering and Materials Science
- Queen Mary University
- London
- UK
| | - C. Remzi Becer
- School of Engineering and Materials Science
- Queen Mary University
- London
- UK
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23
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Fu X, Li Z, Wei J, Sun J, Li Z. Schiff base and reductive amination reactions of α-amino acids: a facile route toward N-alkylated amino acids and peptoid synthesis. Polym Chem 2018. [DOI: 10.1039/c8py00924d] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Polypeptoids are a promising class of peptidomimetic polymers for applications in biotechnology, but the polymers prepared by solution polymerization have limited side-chain functionalities due to synthetic difficulty.
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Affiliation(s)
- Xiaohui Fu
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department; School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Zheng Li
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department; School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Jirui Wei
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department; School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Jing Sun
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department; School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Zhibo Li
- Key Laboratory of Biobased Polymer Materials
- Shandong Provincial Education Department; School of Polymer Science and Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
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24
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Wu H, An H, Mo SC, Kodadek T. Asymmetric synthesis of vinylogous β-amino acids and their incorporation into mixed backbone oligomers. Org Biomol Chem 2017; 15:3255-3264. [PMID: 28346549 PMCID: PMC7243482 DOI: 10.1039/c7ob00333a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chiral vinylogous β-amino acids (VBAA) were synthesized using enantioselective Mannich reactions of aldehydes with in situ generated N-carbamoyl imines followed by a Horner-Wadsworth-Emmons reaction. The efficiency with which these units could be incorporated into oligomers with different moieties on the C- and N-terminal sides was established, as was the feasibility of sequencing oligomers containing VBAAs by tandem mass spectrometry. The data show that VBAAs will be useful building blocks for the construction of combinatorial libraries of peptidomimetic compounds.
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Affiliation(s)
- Hao Wu
- Department of Chemistry, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA.
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25
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Liu R, Li X, Xiao W, Lam KS. Tumor-targeting peptides from combinatorial libraries. Adv Drug Deliv Rev 2017; 110-111:13-37. [PMID: 27210583 DOI: 10.1016/j.addr.2016.05.009] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 05/10/2016] [Accepted: 05/11/2016] [Indexed: 02/07/2023]
Abstract
Cancer is one of the major and leading causes of death worldwide. Two of the greatest challenges in fighting cancer are early detection and effective treatments with no or minimum side effects. Widespread use of targeted therapies and molecular imaging in clinics requires high affinity, tumor-specific agents as effective targeting vehicles to deliver therapeutics and imaging probes to the primary or metastatic tumor sites. Combinatorial libraries such as phage-display and one-bead one-compound (OBOC) peptide libraries are powerful approaches in discovering tumor-targeting peptides. This review gives an overview of different combinatorial library technologies that have been used for the discovery of tumor-targeting peptides. Examples of tumor-targeting peptides identified from each combinatorial library method will be discussed. Published tumor-targeting peptide ligands and their applications will also be summarized by the combinatorial library methods and their corresponding binding receptors.
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Affiliation(s)
- Ruiwu Liu
- Department of Biochemistry and Molecular Medicine, University of California Davis, Sacramento, CA 95817, USA; University of California Davis Comprehensive Cancer Center, Sacramento, CA 95817, USA
| | - Xiaocen Li
- Department of Biochemistry and Molecular Medicine, University of California Davis, Sacramento, CA 95817, USA; University of California Davis Comprehensive Cancer Center, Sacramento, CA 95817, USA
| | - Wenwu Xiao
- Department of Biochemistry and Molecular Medicine, University of California Davis, Sacramento, CA 95817, USA; University of California Davis Comprehensive Cancer Center, Sacramento, CA 95817, USA
| | - Kit S Lam
- Department of Biochemistry and Molecular Medicine, University of California Davis, Sacramento, CA 95817, USA; University of California Davis Comprehensive Cancer Center, Sacramento, CA 95817, USA; Division of Hematology & Oncology, Department of Internal Medicine, University of California Davis, Sacramento, CA 95817, USA
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26
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Wu H, Mousseau G, Mediouni S, Valente ST, Kodadek T. Cell-Permeable Peptides Containing Cycloalanine Residues. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605745] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hao Wu
- Department of Chemistry and Cancer Biology; The Scripps Research Institute; 130 Scripps Way Jupiter FL 33458 USA
| | - Guillaume Mousseau
- Department of Immunology and Microbial Sciences; The Scripps Research Institute; 130 Scripps Way Jupiter FL 33458 USA
| | - Sonia Mediouni
- Department of Immunology and Microbial Sciences; The Scripps Research Institute; 130 Scripps Way Jupiter FL 33458 USA
| | - Susana T. Valente
- Department of Immunology and Microbial Sciences; The Scripps Research Institute; 130 Scripps Way Jupiter FL 33458 USA
| | - Thomas Kodadek
- Department of Chemistry and Cancer Biology; The Scripps Research Institute; 130 Scripps Way Jupiter FL 33458 USA
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27
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Wu H, Mousseau G, Mediouni S, Valente ST, Kodadek T. Cell-Permeable Peptides Containing Cycloalanine Residues. Angew Chem Int Ed Engl 2016; 55:12637-42. [PMID: 27529332 DOI: 10.1002/anie.201605745] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 07/21/2016] [Indexed: 01/24/2023]
Abstract
We present here an efficient alternative to N-methylation for the purpose of morphing protein-binding peptides into more serum-stable and cell-permeable compounds. This involves the incorporation of a cycloalanine (CyAla) into a peptide in a way that avoids difficult coupling steps. We demonstrate the utility of this chemistry in creating a cell-permeable derivative of a high-affinity HIV Rev protein-binding peptide.
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Affiliation(s)
- Hao Wu
- Department of Chemistry and Cancer Biology, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL, 33458, USA
| | - Guillaume Mousseau
- Department of Immunology and Microbial Sciences, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL, 33458, USA
| | - Sonia Mediouni
- Department of Immunology and Microbial Sciences, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL, 33458, USA
| | - Susana T Valente
- Department of Immunology and Microbial Sciences, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL, 33458, USA
| | - Thomas Kodadek
- Department of Chemistry and Cancer Biology, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL, 33458, USA.
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28
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Morimoto J, Kodadek T. Synthesis of a large library of macrocyclic peptides containing multiple and diverse N-alkylated residues. MOLECULAR BIOSYSTEMS 2016; 11:2770-9. [PMID: 26067000 DOI: 10.1039/c5mb00308c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Large combinatorial libraries of macrocyclic peptides are a useful source of bioactive compounds. However, peptides are not generally cell permeable, so there is great interest in the development of methods to create large libraries of modified peptides. In particular, N-alkylation of peptides is known to improve their bioavailability significantly. Incorporation of some level of N-methylated amino acids into peptide libraries has been accomplished with ribosome display or related methods, but the modest efficiency and the inability to employ more diverse N-alkylated amino acids in this type of system argue for the development of synthetic libraries. Here we present optimized procedures for synthesizing macrocyclic peptides containing multiple N-alkylated units and show that this chemistry is efficient enough for the creation of high quality combinatorial libraries by split and pool solid-phase synthesis.
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Affiliation(s)
- Jumpei Morimoto
- Departments of Chemistry and Cancer Biology, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA.
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29
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Doran TM, Sarkar M, Kodadek T. Chemical Tools To Monitor and Manipulate Adaptive Immune Responses. J Am Chem Soc 2016; 138:6076-94. [PMID: 27115249 PMCID: PMC5332222 DOI: 10.1021/jacs.6b02954] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Methods to monitor and manipulate the immune system are of enormous clinical interest. For example, the development of vaccines represents one of the earliest and greatest accomplishments of the biomedical research enterprise. More recently, drugs capable of "reawakening" the immune system to cancer have generated enormous excitement. But, much remains to be done. All drugs available today that manipulate the immune system cannot distinguish between "good" and "bad" immune responses and thus drive general and systemic immune suppression or activation. Indeed, with the notable exception of vaccines, our ability to monitor and manipulate antigen-specific immune responses is in its infancy. Achieving this finer level of control would be highly desirable. For example, it might allow the pharmacological editing of pathogenic immune responses without restricting the ability of the immune system to defend against infection. On the diagnostic side, a method to comprehensively monitor the circulating, antigen-specific antibody population could provide a treasure trove of clinically useful biomarkers, since many diseases expose the immune system to characteristic molecules that are deemed foreign and elicit the production of antibodies against them. This Perspective will discuss the state-of-the-art of this area with a focus on what we consider seminal opportunities for the chemistry community to contribute to this important field.
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Affiliation(s)
- Todd M. Doran
- Departments of Chemistry & Cancer Biology, The Scripps Research
Institute, 130 Scripps Way, Jupiter, FL 33458
| | - Mohosin Sarkar
- Departments of Chemistry & Cancer Biology, The Scripps Research
Institute, 130 Scripps Way, Jupiter, FL 33458
| | - Thomas Kodadek
- Departments of Chemistry & Cancer Biology, The Scripps Research
Institute, 130 Scripps Way, Jupiter, FL 33458
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30
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Kodadek T, McEnaney PJ. Towards vast libraries of scaffold-diverse, conformationally constrained oligomers. Chem Commun (Camb) 2016; 52:6038-59. [PMID: 26996593 PMCID: PMC4846527 DOI: 10.1039/c6cc00617e] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
There is great interest in the development of probe molecules and drug leads that would bind tightly and selectively to protein surfaces that are difficult to target with traditional molecules, such as those involved in protein-protein interactions. The currently available evidence suggests that this will require molecules that are larger and have quite different chemical properties than typical Lipinski-compliant molecules that target enzyme active sites. We describe here efforts to develop vast libraries of conformationally constrained oligomers as a potentially rich source of these molecules.
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Affiliation(s)
- Thomas Kodadek
- Departments of Chemistry and Cancer Biology, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA.
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31
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Abstract
DNA-encoded synthesis can generate vastly diverse screening libraries of arbitrarily complex molecules as long as chemical reaction conditions do not compromise DNA's informational integrity, a fundamental constraint that "DNA-compatible" reaction development does not presently address. We devised DNA-encoded reaction rehearsal, an integrated analysis of reaction yield and impact on DNA, to acquire these key missing data. Magnetic DNA-functionalized sensor beads quantitatively report the % DNA template molecules remaining viable for PCR amplification after exposure to test reaction conditions. Analysis of solid-phase bond forming (e.g., Suzuki-Miyaura cross-coupling, reductive amination) and deprotection reactions (e.g., allyl esters, silyl ethers) guided the definition and optimization of DNA-compatible reaction conditions (>90% yield, >30% viable DNA molecules), most notably in cases that involved known (H(+), Pd) and more obscure (Δ, DMF) hazards to DNA integrity. The data provide an empirical yet mechanistically consistent and predictive framework for designing successful DNA-encoded reaction sequences for combinatorial library synthesis.
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Affiliation(s)
- Marie L. Malone
- Department of Chemistry and ‡Doctoral Program
in Chemical and Biological
Sciences, The Scripps Research Institute 130 Scripps Way Jupiter, Florida 33458, United States
| | - Brian M. Paegel
- Department of Chemistry and ‡Doctoral Program
in Chemical and Biological
Sciences, The Scripps Research Institute 130 Scripps Way Jupiter, Florida 33458, United States
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32
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Ikeda M, Horio K, Tsuzuki T, Torii R, Shibata A, Kitamura Y, Katagiri H, Kitade Y. New solid phase submonomer synthesis of arylopeptoid oligomers using reductive amination. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.10.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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33
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Franzini RM, Biendl S, Mikutis G, Samain F, Scheuermann J, Neri D. "Cap-and-Catch" Purification for Enhancing the Quality of Libraries of DNA Conjugates. ACS COMBINATORIAL SCIENCE 2015; 17:393-8. [PMID: 26083096 DOI: 10.1021/acscombsci.5b00072] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The potential of DNA-encoded combinatorial libraries (DECLs) as tools for hit discovery crucially relies on the availability of methods for their synthesis at acceptable purity and quality. Incomplete reactions in the presence of DNA can noticeably affect the purity of DECLs and methods to selectively remove unreacted oligonucleotide-based starting products would likely enhance the quality of DECL screening results. We describe an approach to selectively remove unreacted oligonucleotide starting products from reaction mixtures and demonstrate its applicability in the context of acylation of amino-modified DNA. Following an amide bond forming reaction, we treat unreacted amino-modified DNAs with biotinylating reagents and isolate the corresponding biotinylated oligonucleotides from the reaction mixture by affinity capture on streptavidin-coated sepharose. This approach, which yields the desired DNA-conjugate at enhanced purity, can be applied both to reactions performed in solution and to procedures in which DNA is immobilized on an anion exchange solid support.
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Affiliation(s)
- Raphael M. Franzini
- Institute
of Pharmaceutical Sciences, ETH Zürich Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
| | - Stefan Biendl
- Institute
of Pharmaceutical Sciences, ETH Zürich Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
| | | | - Florent Samain
- Philochem AG, Libernstrasse 3, 8112 Otelfingen, Switzerland
| | - Jörg Scheuermann
- Institute
of Pharmaceutical Sciences, ETH Zürich Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
| | - Dario Neri
- Institute
of Pharmaceutical Sciences, ETH Zürich Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
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