1
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Na TU, Sander V, Davidson AJ, Lin R, Hermant YO, Hardie Boys MT, Pletzer D, Campbell G, Ferguson SA, Cook GM, Allison JR, Brimble MA, Northrop BH, Cameron AJ. Allenamides as a Powerful Tool to Incorporate Diversity: Thia-Michael Lipidation of Semisynthetic Peptides and Access to β-Keto Amides. Angew Chem Int Ed Engl 2024:e202407764. [PMID: 38932510 DOI: 10.1002/anie.202407764] [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: 04/24/2024] [Revised: 06/21/2024] [Accepted: 06/26/2024] [Indexed: 06/28/2024]
Abstract
Lipopeptides are an important class of biomolecules for drug development. Compared with conventional acylation, a chemoselective lipidation strategy offers a more efficient strategy for late-stage structural derivatisation of a peptide scaffold. It provides access to chemically diverse compounds possessing intriguing and non-native moieties. Utilising an allenamide, we report the first semisynthesis of antimicrobial lipopeptides leveraging a highly efficient thia-Michael addition of chemically diverse lipophilic thiols. Using chemoenzymatically prepared polymyxin B nonapeptide (PMBN) as a model scaffold, an optimised allenamide-mediated thia-Michael addition effected rapid and near quantitative lipidation, affording vinyl sulfide-linked lipopeptide derivatives. Harnessing the utility of this new methodology, 22 lipophilic thiols of unprecedented chemical diversity were introduced to the PMBN framework. These included alkyl thiols, substituted aromatic thiols, heterocyclic thiols and those bearing additional functional groups (e.g., amines), ultimately yielding analogues with potent Gram-negative antimicrobial activity and substantially attenuated nephrotoxicity. Furthermore, we report facile routes to transform the allenamide into a β-keto amide on unprotected peptides, offering a powerful "jack-of-all-trades" synthetic intermediate to enable further peptide modification.
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Affiliation(s)
- Tae-Ung Na
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, 1010, New Zealand
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland, 1010, New Zealand
| | - Veronika Sander
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, 1010, New Zealand
- Department of Molecular Medicine and Pathology, The University of Auckland, 85 Park Road, Auckland, 1023, New Zealand
| | - Alan J Davidson
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, 1010, New Zealand
- Department of Molecular Medicine and Pathology, The University of Auckland, 85 Park Road, Auckland, 1023, New Zealand
| | - Rolland Lin
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, 1010, New Zealand
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland, 1010, New Zealand
| | - Yann O Hermant
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, 1010, New Zealand
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland, 1010, New Zealand
| | - Madeleine T Hardie Boys
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, 1010, New Zealand
- Department of Microbiology and Immunology, School of Medical Sciences, The University of Otago, 720 Cumberland Street, Dunedin, 9054, New Zealand
| | - Daniel Pletzer
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, 1010, New Zealand
- Department of Microbiology and Immunology, School of Medical Sciences, The University of Otago, 720 Cumberland Street, Dunedin, 9054, New Zealand
| | - Georgia Campbell
- Department of Microbiology and Immunology, School of Medical Sciences, The University of Otago, 720 Cumberland Street, Dunedin, 9054, New Zealand
| | - Scott A Ferguson
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, 1010, New Zealand
- Department of Microbiology and Immunology, School of Medical Sciences, The University of Otago, 720 Cumberland Street, Dunedin, 9054, New Zealand
| | - Gregory M Cook
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, 1010, New Zealand
- Department of Microbiology and Immunology, School of Medical Sciences, The University of Otago, 720 Cumberland Street, Dunedin, 9054, New Zealand
| | - Jane R Allison
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, 1010, New Zealand
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland, 1010, New Zealand
| | - Margaret A Brimble
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, 1010, New Zealand
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland, 1010, New Zealand
| | - Brian H Northrop
- Department of Chemistry, Wesleyan University, 52 Lawn Ave., Middletown, CT 06459, U.S.A
| | - Alan J Cameron
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland, 1010, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, 3 Symonds Street, Auckland, 1010, New Zealand
- School of Biological Sciences, The University of Auckland, 3A Symonds Street, Auckland, 1010, New Zealand
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2
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Wang M, Pan D, Zhang Q, Lei Y, Wang C, Jia H, Mou L, Miao X, Ren X, Xu Z. Site-Selective Polyfluoroaryl Modification and Unsymmetric Stapling of Unprotected Peptides. J Am Chem Soc 2024; 146:6675-6685. [PMID: 38427024 DOI: 10.1021/jacs.3c12879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Peptide stapling is recognized as an effective strategy for improving the proteolytic stability and cell permeability of peptides. In this study, we present a novel approach for the site-selective unsymmetric perfluoroaryl stapling of Ser and Cys residues in unprotected peptides. The stapling reaction proceeds smoothly under very mild conditions, exhibiting a remarkably rapid reaction rate. It can furnish stapled products in both liquid and solid phases, and the presence of nucleophilic groups other than Cys thiol within the peptide does not impede the reaction, resulting in uniformly high yields. Importantly, the chemoselective activation of Ser β-C(sp3)-H enables the unreacted -OH to serve as a reactive handle for subsequent divergent modification of the staple moiety with various therapeutic functionalities, including a clickable azido group, a polar moiety, a lipid tag, and a fluorescent dye. In our study, we have also developed a visible-light-induced chemoselective C(sp3)-H polyfluoroarylation of the Ser β-position. This reaction avoids interference with the competitive reaction of Ser -OH, enabling the precise late-stage polyfluoroarylative modification of Ser residues in various unprotected peptides containing other highly reactive amino acid residues. The biological assay suggested that our peptide stapling strategy would potentially enhance the proteolytic stability and cellular permeability of peptides.
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Affiliation(s)
- Mengran Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Da Pan
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Qi Zhang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yongjia Lei
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Chao Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Haoyuan Jia
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Lingyun Mou
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xiaokang Miao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xiaoyu Ren
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - Zhaoqing Xu
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
- Research Unit of Peptide Science, Chinese Academy of Medical Sciences, 2019RU066, Lanzhou 730000, China
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3
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He J, Ghosh P, Nitsche C. Biocompatible strategies for peptide macrocyclisation. Chem Sci 2024; 15:2300-2322. [PMID: 38362412 PMCID: PMC10866349 DOI: 10.1039/d3sc05738k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/04/2024] [Indexed: 02/17/2024] Open
Abstract
Peptides are increasingly important drug candidates, offering numerous advantages over conventional small molecules. However, they face significant challenges related to stability, cellular uptake and overall bioavailability. While individual modifications may not address all these challenges, macrocyclisation stands out as a single modification capable of enhancing affinity, selectivity, proteolytic stability and membrane permeability. The recent successes of in situ peptide modifications during screening in combination with genetically encoded peptide libraries have increased the demand for peptide macrocyclisation reactions that can occur under biocompatible conditions. In this perspective, we aim to distinguish biocompatible conditions from those well-known examples that are fully bioorthogonal. We introduce key strategies for biocompatible peptide macrocyclisation and contextualise them within contemporary screening methods, providing an overview of available transformations.
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Affiliation(s)
- Junming He
- Research School of Chemistry, Australian National University Canberra ACT Australia
| | - Pritha Ghosh
- Research School of Chemistry, Australian National University Canberra ACT Australia
| | - Christoph Nitsche
- Research School of Chemistry, Australian National University Canberra ACT Australia
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4
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Chen Z, Lim YW, Neo JY, Ting Chan RS, Koh LQ, Yuen TY, Lim YH, Johannes CW, Gates ZP. De Novo Sequencing of Synthetic Bis-cysteine Peptide Macrocycles Enabled by "Chemical Linearization" of Compound Mixtures. Anal Chem 2023; 95:14870-14878. [PMID: 37724843 PMCID: PMC10569172 DOI: 10.1021/acs.analchem.3c01742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 09/04/2023] [Indexed: 09/21/2023]
Abstract
A "chemical linearization" approach was applied to synthetic peptide macrocycles to enable their de novo sequencing from mixtures using nanoliquid chromatography-tandem mass spectrometry (nLC-MS/MS). This approach─previously applied to individual macrocycles but not to mixtures─involves cleavage of the peptide backbone at a defined position to give a product capable of generating sequence-determining fragment ions. Here, we first established the compatibility of "chemical linearization" by Edman degradation with a prominent macrocycle scaffold based on bis-Cys peptides cross-linked with the m-xylene linker, which are of major significance in therapeutics discovery. Then, using macrocycle libraries of known sequence composition, the ability to recover accurate de novo assignments to linearized products was critically tested using performance metrics unique to mixtures. Significantly, we show that linearized macrocycles can be sequenced with lower recall compared to linear peptides but with similar accuracy, which establishes the potential of using "chemical linearization" with synthetic libraries and selection procedures that yield compound mixtures. Sodiated precursor ions were identified as a significant source of high-scoring but inaccurate assignments, with potential implications for improving automated de novo sequencing more generally.
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Affiliation(s)
- Zhi’ang Chen
- Institute
of Molecular and Cell Biology (IMCB), Agency
for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Republic of Singapore
- Institute
of Sustainability for Chemicals, Energy and Environment (ISCE), Agency for Science, Technology
and Research (A*STAR), 8 Biomedical Grove, #07-01 Neuros, Singapore 138665, Republic
of Singapore
| | - Yi Wee Lim
- Institute
of Sustainability for Chemicals, Energy and Environment (ISCE), Agency for Science, Technology
and Research (A*STAR), 8 Biomedical Grove, #07-01 Neuros, Singapore 138665, Republic
of Singapore
| | - Jin Yong Neo
- Institute
of Sustainability for Chemicals, Energy and Environment (ISCE), Agency for Science, Technology
and Research (A*STAR), 8 Biomedical Grove, #07-01 Neuros, Singapore 138665, Republic
of Singapore
| | - Rachel Shu Ting Chan
- Institute
of Sustainability for Chemicals, Energy and Environment (ISCE), Agency for Science, Technology
and Research (A*STAR), 8 Biomedical Grove, #07-01 Neuros, Singapore 138665, Republic
of Singapore
| | - Li Quan Koh
- Institute
of Molecular and Cell Biology (IMCB), Agency
for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Republic of Singapore
- Institute
of Sustainability for Chemicals, Energy and Environment (ISCE), Agency for Science, Technology
and Research (A*STAR), 8 Biomedical Grove, #07-01 Neuros, Singapore 138665, Republic
of Singapore
| | - Tsz Ying Yuen
- Institute
of Sustainability for Chemicals, Energy and Environment (ISCE), Agency for Science, Technology
and Research (A*STAR), 8 Biomedical Grove, #07-01 Neuros, Singapore 138665, Republic
of Singapore
| | - Yee Hwee Lim
- Institute
of Sustainability for Chemicals, Energy and Environment (ISCE), Agency for Science, Technology
and Research (A*STAR), 8 Biomedical Grove, #07-01 Neuros, Singapore 138665, Republic
of Singapore
| | - Charles W. Johannes
- Institute
of Molecular and Cell Biology (IMCB), Agency
for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Republic of Singapore
| | - Zachary P. Gates
- Institute
of Molecular and Cell Biology (IMCB), Agency
for Science, Technology and Research (A*STAR), 61 Biopolis Drive, Proteos, Singapore 138673, Republic of Singapore
- Institute
of Sustainability for Chemicals, Energy and Environment (ISCE), Agency for Science, Technology
and Research (A*STAR), 8 Biomedical Grove, #07-01 Neuros, Singapore 138665, Republic
of Singapore
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5
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Mendoza A, Bernardino SJ, Dweck MJ, Valencia I, Evans D, Tian H, Lee W, Li Y, Houk KN, Harran PG. Cascade Synthesis of Fluorinated Spiroheterocyclic Scaffolding for Peptidic Macrobicycles. J Am Chem Soc 2023. [PMID: 37441722 DOI: 10.1021/jacs.3c03071] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
Octafluorocyclopentene (OFCP) engages linear, unprotected peptides in polysubstitution cascades that generate complex fluorinated polycycles. The reactions occur in a single flask at 0-25 °C and require no catalysts or heavy metals. OFCP can directly polycyclize linear sequences using native functionality, or fluorospiroheterocyclic intermediates can be intercepted with exogenous nucleophiles. The latter tactic generates molecular hybrids composed of peptides, sugars, lipids, and heterocyclic components. The platform can create stereoisomers of both single- and double-looped macrocycles. Calculations indicate that the latter can mimic diverse protein surface loops. Subsets of the molecules have low energy conformers that shield the polar surface area through intramolecular hydrogen bonding. A significant fraction of OFCP-derived macrocycles tested show moderate to high passive permeability in parallel artificial membrane permeability assays.
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Affiliation(s)
- Angel Mendoza
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Salvador J Bernardino
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Morris J Dweck
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Isabel Valencia
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá, Alcalá de Henares 28805, Spain
| | - Declan Evans
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Haowen Tian
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - William Lee
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Yu Li
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Kendall N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Patrick G Harran
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States
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6
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You Y, Liu H, Zhu Y, Zheng H. Rational design of stapled antimicrobial peptides. Amino Acids 2023; 55:421-442. [PMID: 36781451 DOI: 10.1007/s00726-023-03245-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 01/30/2023] [Indexed: 02/15/2023]
Abstract
The global increase in antimicrobial drug resistance has dramatically reduced the effectiveness of traditional antibiotics. Structurally diverse antibiotics are urgently needed to combat multiple-resistant bacterial infections. As part of innate immunity, antimicrobial peptides have been recognized as the most promising candidates because they comprise diverse sequences and mechanisms of action and have a relatively low induction rate of resistance. However, because of their low chemical stability, susceptibility to proteases, and high hemolytic effect, their usage is subject to many restrictions. Chemical modifications such as D-amino acid substitution, cyclization, and unnatural amino acid modification have been used to improve the stability of antimicrobial peptides for decades. Among them, a side-chain covalent bridge modification, the so-called stapled peptide, has attracted much attention. The stapled side-chain bridge stabilizes the secondary structure, induces protease resistance, and increases cell penetration and biological activity. Recent progress in computer-aided drug design and artificial intelligence methods has also been used in the design of stapled antimicrobial peptides and has led to the successful discovery of many prospective peptides. This article reviews the possible structure-activity relationships of stapled antimicrobial peptides, the physicochemical properties that influence their activity (such as net charge, hydrophobicity, helicity, and dipole moment), and computer-aided methods of stapled peptide design. Antimicrobial peptides under clinical trial: Pexiganan (NCT01594762, 2012-05-07). Omiganan (NCT02576847, 2015-10-13).
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Affiliation(s)
- YuHao You
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - HongYu Liu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - YouZhuo Zhu
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Heng Zheng
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, 210009, People's Republic of China.
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7
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Kovtonyuk VN, Gatilov YV, Nikul'shin PV. Perfluorinated cyclo-tetrakis(phenylene sulfides): synthesis and structure. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.11.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Fetse J, Zhao Z, Liu H, Mamani UF, Mustafa B, Adhikary P, Ibrahim M, Liu Y, Patel P, Nakhjiri M, Alahmari M, Li G, Cheng K. Discovery of Cyclic Peptide Inhibitors Targeting PD-L1 for Cancer Immunotherapy. J Med Chem 2022; 65:12002-12013. [PMID: 36067356 PMCID: PMC10671706 DOI: 10.1021/acs.jmedchem.2c00539] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Blockade of the interaction between programmed cell death ligand-1 (PD-L1) and its receptor PD-1 has shown great success in cancer immunotherapy. Peptides possess unique characteristics that give them significant advantages as immune checkpoint inhibitors. However, unfavorable physicochemical properties and proteolytic stability profiles limit the translation of bioactive peptides as therapeutic agents. Studies have revealed that cyclization improves the biological activity and stability of linear peptides. In this study, we report the use of macrocyclization scanning for the discovery of cyclic anti-PD-L1 peptides with improved bioactivity. The cyclic peptides demonstrated up to a 34-fold improvement in the PD-1/PD-L1 blocking activity and significant in vivo anti-tumor activity. Our results demonstrate that macrocyclization scanning is an effective way to improve the serum stability and bioactivity of the anti-PD-L1 linear peptide. This strategy can be employed in the optimization of other bioactive peptides, particularly those for protein-protein interaction modulation.
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Affiliation(s)
- John Fetse
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
| | - Zhen Zhao
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
| | - Hao Liu
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
| | - Umar-Farouk Mamani
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
| | - Bahaa Mustafa
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
| | - Pratik Adhikary
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
| | - Mohammed Ibrahim
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
| | - Yanli Liu
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
| | - Pratikkumar Patel
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
| | - Maryam Nakhjiri
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
| | - Mohammed Alahmari
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
| | - Guangfu Li
- Department of Molecular Microbiology and Immunology, School of Medicine, University of Missouri, One Hospital Drive, Columbia, MO 65212, USA
| | - Kun Cheng
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, 2464 Charlotte Street, Kansas City, MO 64108, USA
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9
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Fukumoto K, Yazaki M, Arisawa M. Rhodium‐catalyzed Insertion Reaction of Perfluoroarenes into Unprotected Peptide Disulfides. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kohei Fukumoto
- Kyushu University Department of Bioscience and Biotechnology JAPAN
| | - Masana Yazaki
- Kyushu University Department of Bioscience and Biotechnology JAPAN
| | - Mieko Arisawa
- Kyushu University - Ito Campus: Kyushu Daigaku Department of Bioscience & Biotechnology, Graduate School of Bioresource & Bioenviromental Sciences 744 Motooka Nishi-ku 8190395 Fukuoka JAPAN
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10
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Brittain WDG, Coxon CR. Perfluoroaryl and Perfluoroheteroaryl Reagents as Emerging New Tools for Peptide Synthesis, Modification and Bioconjugation. Chemistry 2022; 28:e202103305. [PMID: 34762323 PMCID: PMC9299879 DOI: 10.1002/chem.202103305] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Indexed: 12/30/2022]
Abstract
Peptides and proteins are becoming increasingly valuable as medicines, diagnostic agents and as tools for biomedical sciences. Much of this has been underpinned by the emergence of new methods for the manipulation and augmentation of native biomolecules. Perfluoroaromatic reagents are perhaps one of the most diverse and exciting tools with which to modify peptides and proteins, due principally to their nucleophilic substitution chemistry, high electron deficiency and the ability for their reactivity to be tuned towards specific nucleophiles. As discussed in this minireview, in recent years, perfluoroaromatic reagents have found applications as protecting groups or activating groups in peptide synthesis and as orthogonal handles for peptide modification. Furthermore, they have applications in chemoselective 'tagging', stapling and bioconjugation of peptides and proteins, as well as tuning of 'drug-like' properties. This review will also explore possible future applications of these reagents in biological chemistry.
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Affiliation(s)
| | - Christopher R. Coxon
- EaStChem School of ChemistryThe University of Edinburgh Joseph Black BuildingDavid Brewster RoadEdinburghEH9 3FJUK
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11
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Fischer NH, Fumi E, Oliveira MT, Thulstrup PW, Diness F. Tuning peptide structure and function through fluorobenzene stapling. Chemistry 2021; 28:e202103788. [PMID: 34897848 DOI: 10.1002/chem.202103788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Indexed: 11/09/2022]
Abstract
Cyclic peptides are promising next-generation therapeutics with improved biological stability and activity. A catalyst-free stapling method for cysteine-containing peptides was developed. This enables fine-tuning of the macrocycle by using the appropriate regioisomers of fluorobenzene linkers. Stapling was performed on the unprotected linear peptide or, more conveniently, directly on-resin after peptide synthesis. NMR spectroscopy and circular dichroism studies demonstrate that the type of stapling can tune the secondary structures of the peptides. The method was applied to a set of potential agonists for melanocortin receptors, generating a library of macrocyclic potent ligands with ortho , meta or para relationships between the thioethers. Their small but significant difference in potency and efficacy demonstrates how the method allows facile fine-tuning of macrocyclic peptides towards biological targets from the same linear precursor.
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Affiliation(s)
| | - Erik Fumi
- University of Copenhagen: Kobenhavns Universitet, Department of Chemistry, DENMARK
| | | | - Peter W Thulstrup
- University of Copenhagen: Kobenhavns Universitet, Department of Chemistry, DENMARK
| | - Frederik Diness
- University of Copenhagen, Department of Chemistry, Universitetsparken 5, DK2100, Copenhagen, DENMARK
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12
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Zhao R, Shi X, Shi L, Zhao H, Yin F, Li Z. Solid phase diversity-oriented lysine modification of cyclic peptides. J Pept Sci 2021; 28:e3373. [PMID: 34643009 DOI: 10.1002/psc.3373] [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: 08/12/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 11/05/2022]
Abstract
Herein, we report a novel strategy for diversity-oriented lysine modification of cyclic peptides based on the orthogonal alkylation of the lysine residues. All steps can be achieved in the solid phase with satisfying conversions. Notably, we demonstrated that the tether modification could help to improve the cellular uptake of peptides.
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Affiliation(s)
- Rongtong Zhao
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Xiaodong Shi
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Linlin Shi
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Hui Zhao
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Feng Yin
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Zigang Li
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
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13
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Bechtler C, Lamers C. Macrocyclization strategies for cyclic peptides and peptidomimetics. RSC Med Chem 2021; 12:1325-1351. [PMID: 34447937 PMCID: PMC8372203 DOI: 10.1039/d1md00083g] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 06/01/2021] [Indexed: 12/12/2022] Open
Abstract
Peptides are a growing therapeutic class due to their unique spatial characteristics that can target traditionally "undruggable" protein-protein interactions and surfaces. Despite their advantages, peptides must overcome several key shortcomings to be considered as drug leads, including their high conformational flexibility and susceptibility to proteolytic cleavage. As a general approach for overcoming these challenges, macrocyclization of a linear peptide can usually improve these characteristics. Their synthetic accessibility makes peptide macrocycles very attractive, though traditional synthetic methods for macrocyclization can be challenging for peptides, especially for head-to-tail cyclization. This review provides an updated summary of the available macrocyclization chemistries, such as traditional lactam formation, azide-alkyne cycloadditions, ring-closing metathesis as well as unconventional cyclization reactions, and it is structured according to the obtained functional groups. Keeping peptide chemistry and screening in mind, the focus is given to reactions applicable in solution, on solid supports, and compatible with contemporary screening methods.
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Affiliation(s)
- Clément Bechtler
- Department Pharmaceutical Sciences, University of Basel Klingelbergstr. 50 4056 Basel Switzerland
| | - Christina Lamers
- Department Pharmaceutical Sciences, University of Basel Klingelbergstr. 50 4056 Basel Switzerland
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14
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Wong JYK, Mukherjee R, Miao J, Bilyk O, Triana V, Miskolzie M, Henninot A, Dwyer JJ, Kharchenko S, Iampolska A, Volochnyuk DM, Lin YS, Postovit LM, Derda R. Genetically-encoded discovery of proteolytically stable bicyclic inhibitors for morphogen NODAL. Chem Sci 2021; 12:9694-9703. [PMID: 34349940 PMCID: PMC8294009 DOI: 10.1039/d1sc01916c] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 05/25/2021] [Indexed: 12/19/2022] Open
Abstract
In this manuscript, we developed a two-fold symmetric linchpin (TSL) that converts readily available phage-displayed peptides libraries made of 20 common amino acids to genetically-encoded libraries of bicyclic peptides displayed on phage. TSL combines an aldehyde-reactive group and two thiol-reactive groups; it bridges two side chains of cysteine [C] with an N-terminal aldehyde group derived from the N-terminal serine [S], yielding a novel bicyclic topology that lacks a free N-terminus. Phage display libraries of SX1CX2X3X4X5X6X7C sequences, where X is any amino acid but Cys, were converted to a library of bicyclic TSL-[S]X1[C]X2X3X4X5X6X7[C] peptides in 45 ± 15% yield. Using this library and protein morphogen NODAL as a target, we discovered bicyclic macrocycles that specifically antagonize NODAL-induced signaling in cancer cells. At a 10 μM concentration, two discovered bicyclic peptides completely suppressed NODAL-induced phosphorylation of SMAD2 in P19 embryonic carcinoma cells. The TSL-[S]Y[C]KRAHKN[C] bicycle inhibited NODAL-induced proliferation of NODAL-TYK-nu ovarian carcinoma cells with apparent IC50 of 1 μM. The same bicycle at 10 μM concentration did not affect the growth of the control TYK-nu cells. TSL-bicycles remained stable over the course of the 72 hour-long assays in a serum-rich cell-culture medium. We further observed general stability in mouse serum and in a mixture of proteases (Pronase™) for 21 diverse bicyclic macrocycles of different ring sizes, amino acid sequences, and cross-linker geometries. TSL-constrained peptides to expand the previously reported repertoire of phage-displayed bicyclic architectures formed by cross-linking Cys side chains. We anticipate that it will aid the discovery of proteolytically stable bicyclic inhibitors for a variety of protein targets.
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Affiliation(s)
- Jeffrey Y-K Wong
- Department of Chemistry, University of Alberta Edmonton AB T6G 2G2 Canada
| | - Raja Mukherjee
- Department of Chemistry, University of Alberta Edmonton AB T6G 2G2 Canada
| | - Jiayuan Miao
- Department of Chemistry, Tufts University Medford MA 02155 USA
| | - Olena Bilyk
- Department of Experimental Oncology, University of Alberta Edmonton AB T6G 2G2 Canada
| | - Vivian Triana
- Department of Chemistry, University of Alberta Edmonton AB T6G 2G2 Canada
| | - Mark Miskolzie
- Department of Chemistry, University of Alberta Edmonton AB T6G 2G2 Canada
| | | | - John J Dwyer
- Ferring Research Institute San Diego California 92121 USA
| | | | - Anna Iampolska
- Enamine Ltd. Chervonotkatska Street 78 Kyiv 02094 Ukraine
| | | | - Yu-Shan Lin
- Department of Chemistry, Tufts University Medford MA 02155 USA
| | - Lynne-Marie Postovit
- Department of Experimental Oncology, University of Alberta Edmonton AB T6G 2G2 Canada
| | - Ratmir Derda
- Department of Chemistry, University of Alberta Edmonton AB T6G 2G2 Canada
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15
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Ohm RG, Mulumba M, Chingle RM, Ahsanullah, Zhang J, Chemtob S, Ong H, Lubell WD. Diversity-Oriented A 3-Macrocyclization for Studying Influences of Ring-Size and Shape of Cyclic Peptides: CD36 Receptor Modulators. J Med Chem 2021; 64:9365-9380. [PMID: 34161728 DOI: 10.1021/acs.jmedchem.1c00642] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Cyclic peptide diversity has been broadened by elaborating the A3-macrocyclization to include various di-amino carboxylate components with different Nε-amine substituents. Triple-bond reduction provided new cyclic peptide macrocycles with Z-olefin and completely saturated structures. Moreover, cyclic azasulfurylpeptides were prepared by exchanging the propargylglycine (Pra) component for an amino sulfamide surrogate. Examination of such diversity-oriented methods on potent cyclic azapeptide modulators of the cluster of differentiation 36 receptor (CD36) identified the importance of the triple bond as well as the Nε-allyl lysine and azaPra residues for high CD36 binding affinity. Cyclic azapeptides which engaged CD36 effectively reduced pro-inflammatory nitric oxide and downstream cytokine and chemokine production in macrophages stimulated with a Toll-like receptor-2 agonist. Studying the triple bond and amine components in the multiple-component A3-macrocyclization has given a diverse array of macrocycles and pertinent information to guide the development of ideal CD36 modulators with biomedical potential for curbing macrophage-driven inflammation.
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Affiliation(s)
- Ragnhild G Ohm
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale, Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Mukandila Mulumba
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale, Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Ramesh M Chingle
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale, Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Ahsanullah
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale, Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Jinqiang Zhang
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale, Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Sylvain Chemtob
- Département de Pédiatrie, Université de Montréal, C.P. 6128, Succursale, Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Huy Ong
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale, Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - William D Lubell
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale, Centre-Ville, Montréal, Québec H3C 3J7, Canada
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16
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Altoom NG. Synthesis and characterization of novel fluoroterphenyls: self-assembly of low-molecular-weight fluorescent organogel. LUMINESCENCE 2021; 36:1285-1299. [PMID: 33855788 DOI: 10.1002/bio.4055] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/10/2021] [Accepted: 04/11/2021] [Indexed: 12/11/2022]
Abstract
Nucleophilic aromatic substitution has been highly para selective on a range of functionalized pentafluorobenzenes. Here, we demonstrate the utility of nucleophilic aromatic substitution chemistry for the preparation of fluorinated fluorescent low-molecular-weight organogels. The molecular design, synthesis and photophysical performance of a new class of thermoreversible and fluorescent low-molecular-weight organogels from para-alkoxy-functionalized fluorinated terphenyls are described. Both CuI-catalyzed decarboxylative cross-coupling and nucleophilic aromatic substitution chemistry were used for the preparation of those highly fluorinated gelators in high yields and excellent purity via simple filtration, from the corresponding potassium fluorobenzoate salts and aryl iodides. Various fluorinated symmetrical and asymmetrical para terphenyls were prepared with various para terminal alkoxy tails. Those fluorinated terphenyls were characterized using X-ray crystallography, differential scanning calorimetry, Fourier-transform infrared spectroscopy, as well as 1 H, 13 C, and 19 F nuclear magnetic resonance. UV-visible light absorbance and emission spectra of those new materials displayed a solvatochromic and solvatofluorochromic behaviour, respectively. Self-assembly of the produced fluorinated terphenyls occurred via cooperative π-π stacking and van der Waals interactions, which resulted in gelating various organic solvents. Scanning electron microscopy displayed the formation of fibre-like nanostructures. The cytotoxicity of some selected fluorinated symmetrical and asymmetrical para terphenyls was explored.
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Affiliation(s)
- Naif Ghazi Altoom
- Department of Biology, King Khalid Military Academy, P.O. Box 22140, Riyadh, Saudi Arabia
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17
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Small and Simple, yet Sturdy: Conformationally Constrained Peptides with Remarkable Properties. Int J Mol Sci 2021; 22:ijms22041611. [PMID: 33562633 PMCID: PMC7915549 DOI: 10.3390/ijms22041611] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 12/20/2022] Open
Abstract
The sheer size and vast chemical space (i.e., diverse repertoire and spatial distribution of functional groups) underlie peptides’ ability to engage in specific interactions with targets of various structures. However, the inherent flexibility of the peptide chain negatively affects binding affinity and metabolic stability, thereby severely limiting the use of peptides as medicines. Imposing conformational constraints to the peptide chain offers to solve these problems but typically requires laborious structure optimization. Alternatively, libraries of constrained peptides with randomized modules can be screened for specific functions. Here, we present the properties of conformationally constrained peptides and review rigidification chemistries/strategies, as well as synthetic and enzymatic methods of producing macrocyclic peptides. Furthermore, we discuss the in vitro molecular evolution methods for the development of constrained peptides with pre-defined functions. Finally, we briefly present applications of selected constrained peptides to illustrate their exceptional properties as drug candidates, molecular recognition probes, and minimalist catalysts.
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18
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Ahangarpour M, Kavianinia I, Harris PWR, Brimble MA. Photo-induced radical thiol-ene chemistry: a versatile toolbox for peptide-based drug design. Chem Soc Rev 2021; 50:898-944. [PMID: 33404559 DOI: 10.1039/d0cs00354a] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
While the global market for peptide/protein-based therapeutics is witnessing significant growth, the development of peptide drugs remains challenging due to their low oral bioavailability, poor membrane permeability, and reduced metabolic stability. However, a toolbox of chemical approaches has been explored for peptide modification to overcome these obstacles. In recent years, there has been a revival of interest in photoinduced radical thiol-ene chemistry as a powerful tool for the construction of therapeutic peptides.
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Affiliation(s)
- Marzieh Ahangarpour
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand.
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19
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Cerulli RA, Shehaj L, Brown H, Pace J, Mei Y, Kritzer JA. Stapled Peptide Inhibitors of Autophagy Adapter LC3B. Chembiochem 2020; 21:2777-2785. [PMID: 32406996 PMCID: PMC7872222 DOI: 10.1002/cbic.202000212] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/09/2020] [Indexed: 12/12/2022]
Abstract
A growing body of evidence suggests that autophagy inhibition enhances the effectiveness of chemotherapy, especially in difficult-to-treat cancers. Existing autophagy inhibitors are primarily lysosomotropic agents. More specific autophagy inhibitors are highly sought-after. The microtubule-associated protein 1A/1B light chain 3B protein, LC3B, is an adapter protein that mediates key protein-protein interactions at several points in autophagy pathways. In this work, we used a known peptide ligand as a starting point to develop improved LC3B inhibitors. We obtained structure-activity relationships that quantify the binding contributions of peptide termini, individual charged residues, and hydrophobic interactions. Based on these data, we used artificial amino acids and diversity-oriented stapling to improve affinity and resistance to biological degradation, while maintaining or improving LC3B affinity and selectivity. These peptides represent the highest-affinity LC3B-selective ligands reported to date, and they will be useful tools for further elucidation of LC3B's role in autophagy and in cancer.
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Affiliation(s)
- Robert A Cerulli
- Cell, Molecular and Developmental Biology Program Graduate School of Biomedical Sciences, Tufts University, Boston, MA 02111, USA
| | - Livia Shehaj
- Department of Chemistry, Tufts University, Medford, MA 02155, USA
| | - Hawley Brown
- Department of Chemistry, Tufts University, Medford, MA 02155, USA
| | - Jennifer Pace
- Department of Chemistry, Tufts University, Medford, MA 02155, USA
| | - Yang Mei
- Department of Chemistry, Tufts University, Medford, MA 02155, USA
| | - Joshua A Kritzer
- Department of Chemistry, Tufts University, Medford, MA 02155, USA
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20
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Lee LCC, Tsang AWY, Liu HW, Lo KKW. Photofunctional Cyclometalated Iridium(III) Polypyridine Complexes Bearing a Perfluorobiphenyl Moiety for Bioconjugation, Bioimaging, and Phototherapeutic Applications. Inorg Chem 2020; 59:14796-14806. [DOI: 10.1021/acs.inorgchem.0c01343] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lawrence Cho-Cheung Lee
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong, P. R. China
| | - Ada Wun-Yu Tsang
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong, P. R. China
| | - Hua-Wei Liu
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong, P. R. China
| | - Kenneth Kam-Wing Lo
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Hong Kong, P. R. China
- State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Tat Chee Avenue, Hong Kong, P. R. China
- Center of Functional Photonics, City University of Hong Kong, Tat Chee Avenue, Hong Kong, P. R. China
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21
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Dognini P, Killoran PM, Hanson GS, Halsall L, Chaudhry T, Islam Z, Giuntini F, Coxon CR. Using
19
F NMR
and two‐level factorial design to explore thiol‐fluoride substitution in hexafluorobenzene and its application in peptide stapling and cyclisation. Pept Sci (Hoboken) 2020. [DOI: 10.1002/pep2.24182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Paolo Dognini
- School of Pharmacy and Biomolecular Sciences Byrom Street Campus, Liverpool John Moores University Liverpool UK
| | - Patrick M. Killoran
- Division of Structural Biology (STRUBI) University of Oxford, Rutherford Appleton Laboratory, Harwell Science and Innovation Campus Harwell UK
| | - George S. Hanson
- School of Pharmacy and Biomolecular Sciences Byrom Street Campus, Liverpool John Moores University Liverpool UK
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot‐Watt University Edinburgh UK
| | - Lewis Halsall
- School of Pharmacy and Biomolecular Sciences Byrom Street Campus, Liverpool John Moores University Liverpool UK
| | - Talhat Chaudhry
- School of Pharmacy and Biomolecular Sciences Byrom Street Campus, Liverpool John Moores University Liverpool UK
| | - Zasharatul Islam
- School of Pharmacy and Biomolecular Sciences Byrom Street Campus, Liverpool John Moores University Liverpool UK
| | - Francesca Giuntini
- School of Pharmacy and Biomolecular Sciences Byrom Street Campus, Liverpool John Moores University Liverpool UK
| | - Christopher R. Coxon
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot‐Watt University Edinburgh UK
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22
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Bednar TN, Resnikoff AR, Gavenonis J. Microwave-assisted cleavage of cysteine perfluoroaryl thioethers. Amino Acids 2020; 52:841-845. [PMID: 32350627 DOI: 10.1007/s00726-020-02846-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 04/23/2020] [Indexed: 11/28/2022]
Abstract
The cysteine- perfluoroarene SNAr reaction allows for the sequence-specific attachment of dyes and affinity tags to peptides and proteins. However, while many methods exist for the desulfuration of native and functionalized cysteine residues, there are no reports of their application to perfluoroarylated cysteines. Herein we report both the hydrogenolysis of a perfluoroarylated cysteine to alanine and elimination to dehydroalanine, reactions that are both accelerated by microwave irradiation.
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Affiliation(s)
- Taylor N Bednar
- Department of Chemistry, Dickinson College, 28 North College Street, Carlisle, PA, 17013, USA.,Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, 43210, USA
| | - Alissa R Resnikoff
- Department of Chemistry, Dickinson College, 28 North College Street, Carlisle, PA, 17013, USA.,Chicago Medical School, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL, 60064, USA
| | - Jason Gavenonis
- Department of Chemistry, Dickinson College, 28 North College Street, Carlisle, PA, 17013, USA.
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23
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Tsunemi T, Bernardino SJ, Mendoza A, Jones CG, Harran PG. Syntheses of Atypically Fluorinated Peptidyl Macrocycles through Sequential Vinylic Substitutions. Angew Chem Int Ed Engl 2020; 59:674-678. [PMID: 31693283 DOI: 10.1002/anie.201910136] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/09/2019] [Indexed: 12/12/2022]
Abstract
Small peptides containing combinations of cysteine, tyrosine, histidine, and serine residues react with octafluorocyclopentene (OFCP) to afford atypically structured macrocycles through successive vinylic substitutions. The reactions proceed rapidly in air at 0 °C and are tolerant of spectating tryptophan, asparagine, glutamine, and threonine residues. Hexapeptides of consensus sequence YXCXXC displace four fluorine atoms from OFCP to generate fluorinated macrobicyclic compounds that display dual-turn surfaces. The method provides facile access to a wide range of previously unknown heterocyclic structures.
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Affiliation(s)
- Tomoyuki Tsunemi
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA.,Medicinal Chemistry Research Laboratories, Daiichi Sankyo Co., Ltd., Tokyo, Japan
| | - Salvador J Bernardino
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Angel Mendoza
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Christopher G Jones
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
| | - Patrick G Harran
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, USA
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24
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Valiente PA, Becerra D, Kim PM. A Method to Calculate the Relative Binding Free Energy Differences of α-Helical Stapled Peptides. J Org Chem 2020; 85:1644-1651. [DOI: 10.1021/acs.joc.9b03067] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Pedro A Valiente
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E2, Canada
| | - David Becerra
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E2, Canada
| | - Philip M Kim
- Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E2, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 3E2, Canada
- Department of Computer Science, University of Toronto, Toronto, Ontario M5S 3E2, Canada
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25
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Tsunemi T, Bernardino SJ, Mendoza A, Jones CG, Harran PG. Syntheses of Atypically Fluorinated Peptidyl Macrocycles through Sequential Vinylic Substitutions. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Tomoyuki Tsunemi
- Department of Chemistry and Biochemistry University of California Los Angeles CA USA
- Medicinal Chemistry Research Laboratories Daiichi Sankyo Co., Ltd. Tokyo Japan
| | | | - Angel Mendoza
- Department of Chemistry and Biochemistry University of California Los Angeles CA USA
| | - Christopher G. Jones
- Department of Chemistry and Biochemistry University of California Los Angeles CA USA
| | - Patrick G. Harran
- Department of Chemistry and Biochemistry University of California Los Angeles CA USA
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26
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Affiliation(s)
- Katsuya Maruyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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27
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Zhang C, Vinogradova EV, Spokoyny AM, Buchwald SL, Pentelute BL. Arylation Chemistry for Bioconjugation. Angew Chem Int Ed Engl 2019; 58:4810-4839. [PMID: 30399206 PMCID: PMC6433541 DOI: 10.1002/anie.201806009] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Indexed: 12/20/2022]
Abstract
Bioconjugation chemistry has been used to prepare modified biomolecules with functions beyond what nature intended. Central to these techniques is the development of highly efficient and selective bioconjugation reactions that operate under mild, biomolecule compatible conditions. Methods that form a nucleophile-sp2 carbon bond show promise for creating bioconjugates with new modifications, sometimes resulting in molecules with unparalleled functions. Here we outline and review sulfur, nitrogen, selenium, oxygen, and carbon arylative bioconjugation strategies and their applications to modify peptides, proteins, sugars, and nucleic acids.
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Affiliation(s)
- Chi Zhang
- Dr. C. Zhang, Dr. E. V. Vinogradova, Prof. Dr. A. M. Spokoyny, Prof. Dr. S. L. Buchwald, Prof. Dr. B. L. Pentelute, Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA, ,
| | - Ekaterina V. Vinogradova
- Dr. C. Zhang, Dr. E. V. Vinogradova, Prof. Dr. A. M. Spokoyny, Prof. Dr. S. L. Buchwald, Prof. Dr. B. L. Pentelute, Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA, ,
- Dr. E. V. Vinogradova, The Skaggs Institute for Chemical Biology and Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Alexander M. Spokoyny
- Dr. C. Zhang, Dr. E. V. Vinogradova, Prof. Dr. A. M. Spokoyny, Prof. Dr. S. L. Buchwald, Prof. Dr. B. L. Pentelute, Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA, ,
- Prof. Dr. A. M. Spokoyny, Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095, USA
| | - Stephen L. Buchwald
- Dr. C. Zhang, Dr. E. V. Vinogradova, Prof. Dr. A. M. Spokoyny, Prof. Dr. S. L. Buchwald, Prof. Dr. B. L. Pentelute, Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA, ,
| | - Bradley L. Pentelute
- Dr. C. Zhang, Dr. E. V. Vinogradova, Prof. Dr. A. M. Spokoyny, Prof. Dr. S. L. Buchwald, Prof. Dr. B. L. Pentelute, Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA, ,
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28
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Isidro-Llobet A, Kenworthy MN, Mukherjee S, Kopach ME, Wegner K, Gallou F, Smith AG, Roschangar F. Sustainability Challenges in Peptide Synthesis and Purification: From R&D to Production. J Org Chem 2019; 84:4615-4628. [PMID: 30900880 DOI: 10.1021/acs.joc.8b03001] [Citation(s) in RCA: 196] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In recent years, there has been a growing interest in therapeutic peptides within the pharmaceutical industry with more than 50 peptide drugs on the market, approximately 170 in clinical trials, and >200 in preclinical development. However, the current state of the art in peptide synthesis involves primarily legacy technologies with use of large amounts of highly hazardous reagents and solvents and little focus on green chemistry and engineering. In 2016, the ACS Green Chemistry Institute Pharmaceutical Roundtable identified development of greener processes for peptide API as a critical unmet need, and as a result, a new Roundtable team formed to address this important area. The initial focus of this new team is to highlight best practices in peptide synthesis and encourage much needed innovations. In this Perspective, we aim to summarize the current challenges of peptide synthesis and purification in terms of sustainability, highlight possible solutions, and encourage synergies between academia, the pharmaceutical industry, and contract research organizations/contract manufacturing organizations.
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Affiliation(s)
- Albert Isidro-Llobet
- Medicines Research Centre , GlaxoSmithKline , Gunnels Wood Road , Stevenage SG1 2NY , U.K
| | - Martin N Kenworthy
- Pharmaceutical Technology and Development , AstraZeneca , Silk Road Business Park, Charter Way , Macclesfield SK10 2NA , U.K
| | - Subha Mukherjee
- Chemical and Synthetic Development , Bristol-Myers Squibb Company , One Squibb Drive , New Brunswick , New Jersey 08903 , United States
| | - Michael E Kopach
- Small Molecule Design and Development , Eli Lilly and Company , 1400 West Raymond Street , Indianapolis , Indiana , United States
| | - Katarzyna Wegner
- Active Pharmaceutical Ingredient Development , IPSEN Manufacturing Ireland, Ltd. , Blanchardstown Industrial Park , Dublin 15 , Ireland
| | - Fabrice Gallou
- Chemical & Analytical Development , Novartis , 4056 Basel , Switzerland
| | - Austin G Smith
- Drug Substance Process Development , Amgen, Inc. , 1 Amgen Center Drive , Thousand Oaks , California 91320 , United States
| | - Frank Roschangar
- Chemical Development , Boehringer Ingelheim Pharmaceuticals , Ridgefield , Connecticut 06877 , United States
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29
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Zhang C, Vinogradova EV, Spokoyny AM, Buchwald SL, Pentelute BL. Arylierungschemie für die Biokonjugation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201806009] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Chi Zhang
- Department of ChemistryMassachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Ekaterina V. Vinogradova
- Department of ChemistryMassachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
- The Skaggs Institute for Chemical Biology and Department of Molecular MedicineThe Scripps Research Institute La Jolla CA 92037 USA
| | - Alexander M. Spokoyny
- Department of ChemistryMassachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
- Department of Chemistry and BiochemistryUniversity of California, Los Angeles 607 Charles E. Young Drive East Los Angeles CA 90095 USA
| | - Stephen L. Buchwald
- Department of ChemistryMassachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Bradley L. Pentelute
- Department of ChemistryMassachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
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30
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Verhoork SJM, Jennings CE, Rozatian N, Reeks J, Meng J, Corlett EK, Bunglawala F, Noble MEM, Leach AG, Coxon CR. Tuning the Binding Affinity and Selectivity of Perfluoroaryl-Stapled Peptides by Cysteine-Editing. Chemistry 2019; 25:177-182. [PMID: 30255959 DOI: 10.1002/chem.201804163] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Indexed: 11/08/2022]
Abstract
A growing number of approaches to "staple" α-helical peptides into a bioactive conformation using cysteine cross-linking are emerging. Here, the replacement of l-cysteine with "cysteine analogues" in combinations of different stereochemistry, side chain length and beta-carbon substitution, is explored to examine the influence that the thiol-containing residue(s) has on target protein binding affinity in a well-explored model system, p53-MDM2/MDMX, which is constituted by the interaction of the tumour suppressor protein p53 and proteins MDM2 and MDMX, which regulate p53 activity. In some cases, replacement of one or more l-cysteine residues afforded significant changes in the measured binding affinity and target selectivity of the peptide. Computationally constructed homology models indicate that some modifications, such as incorporating two d-cysteine residues, favourably alter the positions of key functional amino acid side chains, which is likely to cause changes in binding affinity, in agreement with measured surface plasmon resonance data.
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Affiliation(s)
- Sanne J M Verhoork
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom St, Liverpool, L3 3AF, UK
| | - Claire E Jennings
- Northern Institute for Cancer Research, Newcastle University, Paul O'Gorman Building, Medical School, Framlington Place, Newcastle upon Tyne, NE2 4HH, UK
| | - Neshat Rozatian
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
| | - Judith Reeks
- Northern Institute for Cancer Research, Newcastle University, Paul O'Gorman Building, Medical School, Framlington Place, Newcastle upon Tyne, NE2 4HH, UK
| | - Jieman Meng
- Northern Institute for Cancer Research, Newcastle University, Paul O'Gorman Building, Medical School, Framlington Place, Newcastle upon Tyne, NE2 4HH, UK
| | - Emily K Corlett
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
| | - Fazila Bunglawala
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom St, Liverpool, L3 3AF, UK
| | - Martin E M Noble
- Northern Institute for Cancer Research, Newcastle University, Paul O'Gorman Building, Medical School, Framlington Place, Newcastle upon Tyne, NE2 4HH, UK
| | - Andrew G Leach
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom St, Liverpool, L3 3AF, UK
| | - Christopher R Coxon
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, James Parsons Building, Byrom St, Liverpool, L3 3AF, UK
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31
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Alapour S, Sharma A, de la Torre BG, Ramjugernath D, Koorbanally NA, Albericio F. Perfluorophenyl Derivatives as Unsymmetrical Linkers for Solid Phase Conjugation. Front Chem 2018; 6:589. [PMID: 30547028 PMCID: PMC6279949 DOI: 10.3389/fchem.2018.00589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 11/13/2018] [Indexed: 11/16/2022] Open
Abstract
Linkers play major roles in conjugation chemistry toward the advancement of drug discovery. Two different series of fluorinated linkers were introduced to the backbone of a model peptide using solid phase peptide synthesis. These fluorinated linkers have the potential to conjugate two asymmetrical groups. This has not been done using other fluorinated linkers. This study deals with application of linkers with S, N, and O terminals and reports on the investigation of their chemoselectivity and activity for branching peptide backbones using a chosen model peptide. These fluorinated linkers have unique properties that will make it possible for a large diversity of bioconjugated chemicals for different bioapplications to be designed and synthesized.
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Affiliation(s)
- Saba Alapour
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
| | - Anamika Sharma
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa.,KRISP, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Beatriz G de la Torre
- KRISP, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Deresh Ramjugernath
- School of Chemical Engineering, University of KwaZulu-Natal, Durban, South Africa
| | - Neil A Koorbanally
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
| | - Fernando Albericio
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa.,Department of Organic Chemistry, CIBER-BBN (Networking Centre on Bioengineering, Biomaterials and Nanomedicine), University of Barcelona, Barcelona, Spain
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32
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Hou Z, Sun C, Geng H, Hu K, Xie M, Ma Y, Jiang F, Yin F, Li Z. Facile Chemoselective Modification of Thio-Ethers Generates Chiral Center-Induced Helical Peptides. Bioconjug Chem 2018; 29:2904-2908. [PMID: 30193458 DOI: 10.1021/acs.bioconjchem.8b00624] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A precisely positioned sulfimide chiral center on-tether of a thio-ether tethered peptide determines the peptide secondary structure by chemoselective oxaziridine modification. This method provides a facile way to tune peptides' secondary structures and biophysical properties.
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Affiliation(s)
- Zhanfeng Hou
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China
| | - Chengjie Sun
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China
| | - Hao Geng
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China
| | - Kuan Hu
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China
| | - Mingsheng Xie
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China
| | - Yue Ma
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China
| | - Fan Jiang
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China
| | - Feng Yin
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China
| | - Zigang Li
- State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China
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33
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Belashov IA, Crawford DW, Cavender CE, Dai P, Beardslee PC, Mathews DH, Pentelute BL, McNaughton BR, Wedekind JE. Structure of HIV TAR in complex with a Lab-Evolved RRM provides insight into duplex RNA recognition and synthesis of a constrained peptide that impairs transcription. Nucleic Acids Res 2018; 46:6401-6415. [PMID: 29961805 PMCID: PMC6061845 DOI: 10.1093/nar/gky529] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/23/2018] [Accepted: 05/25/2018] [Indexed: 12/22/2022] Open
Abstract
Natural and lab-evolved proteins often recognize their RNA partners with exquisite affinity. Structural analysis of such complexes can offer valuable insight into sequence-selective recognition that can be exploited to alter biological function. Here, we describe the structure of a lab-evolved RNA recognition motif (RRM) bound to the HIV-1 trans-activation response (TAR) RNA element at 1.80 Å-resolution. The complex reveals a trio of arginines in an evolved β2-β3 loop penetrating deeply into the major groove to read conserved guanines while simultaneously forming cation-π and salt-bridge contacts. The observation that the evolved RRM engages TAR within a double-stranded stem is atypical compared to most RRMs. Mutagenesis, thermodynamic analysis and molecular dynamics validate the atypical binding mode and quantify molecular contributions that support the exceptionally tight binding of the TAR-protein complex (KD,App of 2.5 ± 0.1 nM). These findings led to the hypothesis that the β2-β3 loop can function as a standalone TAR-recognition module. Indeed, short constrained peptides comprising the β2-β3 loop still bind TAR (KD,App of 1.8 ± 0.5 μM) and significantly weaken TAR-dependent transcription. Our results provide a detailed understanding of TAR molecular recognition and reveal that a lab-evolved protein can be reduced to a minimal RNA-binding peptide.
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Affiliation(s)
- Ivan A Belashov
- Department of Biochemistry & Biophysics, Center for RNA Biology, and Center for AIDS Research, University of Rochester School of Medicine & Dentistry, Rochester, NY 14642, USA
| | - David W Crawford
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Chapin E Cavender
- Department of Biochemistry & Biophysics, Center for RNA Biology, and Center for AIDS Research, University of Rochester School of Medicine & Dentistry, Rochester, NY 14642, USA
| | - Peng Dai
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Patrick C Beardslee
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - David H Mathews
- Department of Biochemistry & Biophysics, Center for RNA Biology, and Center for AIDS Research, University of Rochester School of Medicine & Dentistry, Rochester, NY 14642, USA
| | - Bradley L Pentelute
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Koch Institute, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Broad Institute of Harvard and MIT, Cambridge, MA 02139, USA
| | - Brian R McNaughton
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
- Department of Biochemistry & Molecular Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Joseph E Wedekind
- Department of Biochemistry & Biophysics, Center for RNA Biology, and Center for AIDS Research, University of Rochester School of Medicine & Dentistry, Rochester, NY 14642, USA
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34
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Gimenez D, Mooney CA, Dose A, Sandford G, Coxon CR, Cobb SL. The application of perfluoroheteroaromatic reagents in the preparation of modified peptide systems. Org Biomol Chem 2018; 15:4086-4095. [PMID: 28470238 DOI: 10.1039/c7ob00283a] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The perfluoroheteroaromatic reagent pentafluoropyridine has proved to be a highly reactive electrophile, undergoing SNAr arylation reactions in the presence of a range of nucleophilic peptide side chains (i.e. cysteine, tyrosine, serine and lysine) under mild conditions. Moreover, we have shown how one-step peptide-modification using perfluoroheteroaromatics can deliver enhanced proteolytic stability in pharmaceutically-relevant peptides such as oxytocin.
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Affiliation(s)
- Diana Gimenez
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
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35
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Wolfe JM, Fadzen CM, Holden RL, Yao M, Hanson GJ, Pentelute* BL. Perfluoroaryl Bicyclic Cell-Penetrating Peptides for Delivery of Antisense Oligonucleotides. Angew Chem Int Ed Engl 2018; 57:4756-4759. [PMID: 29479836 PMCID: PMC6248909 DOI: 10.1002/anie.201801167] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Indexed: 12/12/2022]
Abstract
Exon-skipping antisense oligonucleotides are effective treatments for genetic diseases, yet exon-skipping activity requires that these macromolecules reach the nucleus. While cell-penetrating peptides can improve delivery, proteolytic instability often limits efficacy. It is hypothesized that the bicyclization of arginine-rich peptides would improve their stability and their ability to deliver oligonucleotides into the nucleus. Two methods were introduced for the synthesis of arginine-rich bicyclic peptides using cysteine perfluoroarylation chemistry. Then, the bicyclic peptides were covalently linked to a phosphorodiamidate morpholino oligonucleotide (PMO) and assayed for exon skipping activity. The perfluoroaryl cyclic and bicyclic peptides improved PMO activity roughly 14-fold over the unconjugated PMO. The bicyclic peptides exhibited increased proteolytic stability relative to the monocycle, demonstrating that perfluoroaryl bicyclic peptides are potent and stable delivery agents.
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Affiliation(s)
- Justin M. Wolfe
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 (USA),
| | - Colin M. Fadzen
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 (USA),
| | - Rebecca L. Holden
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 (USA),
| | - Monica Yao
- Research Chemistry, Sarepta Therapeutics, Inc., 215 First Street, Cambridge, MA 02142 (USA)
| | - Gunnar J. Hanson
- Research Chemistry, Sarepta Therapeutics, Inc., 215 First Street, Cambridge, MA 02142 (USA)
| | - Bradley L. Pentelute*
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 (USA),
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36
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Shi X, Zhao R, Jiang Y, Zhao H, Tian Y, Jiang Y, Li J, Qin W, Yin F, Li Z. Reversible stapling of unprotected peptides via chemoselective methionine bis-alkylation/dealkylation. Chem Sci 2018; 9:3227-3232. [PMID: 29844896 PMCID: PMC5931191 DOI: 10.1039/c7sc05109c] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 02/20/2018] [Indexed: 12/27/2022] Open
Abstract
We have developed a general peptide macrocyclization strategy that involves a facile and chemoselective methionine bis-alkylation/dealkylation process. This method provides a straightforward and easy approach to generate cyclic peptides with tolerances of all amino acids (including Cys), variable loop sizes, and different linkers. The Met bis-alkylation we apply in this strategy yields two additional on-tether positive charges that could assist in the cellular uptake of the peptides. Notably, the bis-alkylated peptide could be reduced to release the original peptide both in vitro and within cellular environments. This strategy provides an intriguing and facile traceless post-peptide-synthesis modification with enhanced cellular uptakes. Peptides constructed with this method could be utilized to zero in on various protein targets or to achieve other goals, such as drug delivery.
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Affiliation(s)
- Xiaodong Shi
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China . ;
| | - Rongtong Zhao
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China . ;
| | - Yixiang Jiang
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China . ;
| | - Hui Zhao
- Division of Life Sciences , Clarivate Analytics , Beijing , 100190 , China
| | - Yuan Tian
- School of Life Science and Engineering , Southwest Jiaotong University , Chengdu , 611756 , China
| | - Yanhong Jiang
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China . ;
| | - Jingxu Li
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China . ;
| | - Weirong Qin
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China . ;
| | - Feng Yin
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China . ;
| | - Zigang Li
- Key Laboratory of Chemical Genomics , School of Chemical Biology and Biotechnology , Peking University Shenzhen Graduate School , Shenzhen , 518055 , China . ;
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37
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Wolfe JM, Fadzen CM, Holden RL, Yao M, Hanson GJ, Pentelute BL. Perfluoroaryl Bicyclic Cell‐Penetrating Peptides for Delivery of Antisense Oligonucleotides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801167] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Justin M. Wolfe
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Colin M. Fadzen
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Rebecca L. Holden
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Monica Yao
- Research Chemistry Sarepta Therapeutics, Inc. 215 First Street Cambridge MA 02142 USA
| | - Gunnar J. Hanson
- Research Chemistry Sarepta Therapeutics, Inc. 215 First Street Cambridge MA 02142 USA
| | - Bradley L. Pentelute
- Department of Chemistry Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA
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38
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Shi X, Jiang Y, Yang D, Zhao H, Tian Y, Li Z. Reversibly switching the conformation of short peptide through in-tether chiral sulfonium auxiliary. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.07.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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39
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Dantas de Araujo A, Perry SR, Fairlie DP. Chemically Diverse Helix-Constrained Peptides Using Selenocysteine Crosslinking. Org Lett 2018; 20:1453-1456. [DOI: 10.1021/acs.orglett.8b00233] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Aline Dantas de Araujo
- Division of Chemistry and
Structural Biology, ARC Centre of Excellence in Advanced Molecular
Imaging, Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Samuel R. Perry
- Division of Chemistry and
Structural Biology, ARC Centre of Excellence in Advanced Molecular
Imaging, Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
| | - David P. Fairlie
- Division of Chemistry and
Structural Biology, ARC Centre of Excellence in Advanced Molecular
Imaging, Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD 4072, Australia
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40
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Alapour S, de la Torre BG, Ramjugernath D, Koorbanally NA, Albericio F. Application of Decafluorobiphenyl (DFBP) Moiety as a Linker in Bioconjugation. Bioconjug Chem 2018; 29:225-233. [DOI: 10.1021/acs.bioconjchem.7b00800] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Saba Alapour
- School
of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
| | - Beatriz G. de la Torre
- KRISP, College of Health Sciences, University of KwaZulu-Natal, Westville, Durban 4001, South Africa
| | - Deresh Ramjugernath
- School
of Chemical Engineering, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Neil A. Koorbanally
- School
of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
| | - Fernando Albericio
- School
of Chemistry and Physics, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa
- CIBER-BBN,
Networking Centre on Bioengineering, Biomaterials and Nanomedicine,
and Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
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41
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Fadzen CM, Wolfe JM, Cho CF, Chiocca EA, Lawler SE, Pentelute BL. Perfluoroarene-Based Peptide Macrocycles to Enhance Penetration Across the Blood-Brain Barrier. J Am Chem Soc 2017; 139:15628-15631. [PMID: 28992407 PMCID: PMC5818988 DOI: 10.1021/jacs.7b09790] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Here we describe the utility of peptide macrocyclization through perfluoroaryl-cysteine SNAr chemistry to improve the ability of peptides to cross the blood-brain barrier. Multiple macrocyclic analogues of the peptide transportan-10 were investigated that displayed increased uptake in two different cell lines and improved proteolytic stability. One of these analogues (M13) exhibited substantially increased delivery across a cellular spheroid model of the blood-brain barrier. Through ex vivo imaging of mouse brains, we demonstrated that this perfluoroarene-based macrocycle of TP10 exhibits increased penetration of the brain parenchyma following intravenous administration in mice. Finally, we evaluated macrocyclic analogues of the BH3 domain of the BIM protein to assess if our approach would be applicable to a peptide of therapeutic interest. We identified a BIM BH3 analogue that showed increased penetration of the brain tissue in mice.
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Affiliation(s)
- Colin M. Fadzen
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Justin M. Wolfe
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Choi-Fong Cho
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - E. Antonio Chiocca
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Sean E. Lawler
- Harvey Cushing Neuro-Oncology Laboratories, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Bradley L. Pentelute
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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42
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Thioether-stapled macrocyclic inhibitors of the EH domain of EHD1. Bioorg Med Chem 2017; 26:1206-1211. [PMID: 28951093 DOI: 10.1016/j.bmc.2017.09.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 08/31/2017] [Accepted: 09/06/2017] [Indexed: 11/24/2022]
Abstract
Recycling of receptors from the endosomal recycling compartment to the plasma membrane is a critical cellular process, and recycling is particularly important for maintaining invasiveness in solid tumors. In this work, we continue our efforts to inhibit EHD1, a critical adaptor protein involved in receptor recycling. We applied a diversity-oriented macrocyclization approach to produce cyclic peptides with varied conformations, but that each contain a motif that binds to the EH domain of EHD1. Screening these uncovered several new inhibitors for EHD1's EH domain, the most potent of which bound with a Kd of 3.1μM. Several of the most potent inhibitors were tested in a cellular assay that measures extent of vesicle recycling. Inhibiting EHD1 could potentially slow cancer invasiveness and metastasis, and these cyclic peptides represent the most potent inhibitors of EHD1 to date.
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43
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Hu K, Sun C, Li Z. Reversible and Versatile On-Tether Modification of Chiral-Center-Induced Helical Peptides. Bioconjug Chem 2017. [PMID: 28650634 DOI: 10.1021/acs.bioconjchem.7b00321] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Modification of the cross-linker of constrained peptides has recently received considerable attention. Here, we present a versatile approach to modifing the cross-linking tether of chiral-center-induced helical (CIH) peptides via the S-alkylation reaction. The alkylation process displayed high conversion efficiency, selectivity, and substrate tolerance. Notably, although on-tether S-alkylation could lead to a pair of peptide epimers, the major alkylated product retained the helical structure of its helical precursor peptide. This S-alkylation was readily reversible under reductive conditions, which provides a simple method for traceless modification. In addition to expanding the chemical space of CIH peptides, this strategy is the first on-tether modification platform with known retention of the peptides' original helicity.
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Affiliation(s)
- Kuan Hu
- School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School , Shenzhen, Guangdong 518055, China
| | - Chengjie Sun
- School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School , Shenzhen, Guangdong 518055, China
| | - Zigang Li
- School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School , Shenzhen, Guangdong 518055, China
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44
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Peraro L, Zou Z, Makwana KM, Cummings AE, Ball HL, Yu H, Lin YS, Levine B, Kritzer JA. Diversity-Oriented Stapling Yields Intrinsically Cell-Penetrant Inducers of Autophagy. J Am Chem Soc 2017; 139:7792-7802. [PMID: 28414223 PMCID: PMC5473019 DOI: 10.1021/jacs.7b01698] [Citation(s) in RCA: 116] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
![]()
Autophagy
is an essential pathway by which cellular and foreign
material are degraded and recycled in eukaryotic cells. Induction
of autophagy is a promising approach for treating diverse human diseases,
including neurodegenerative disorders and infectious diseases. Here,
we report the use of a diversity-oriented stapling approach to produce
autophagy-inducing peptides that are intrinsically cell-penetrant.
These peptides induce autophagy at micromolar concentrations in vitro,
have aggregate-clearing activity in a cellular model of Huntington’s
disease, and induce autophagy in vivo. Unexpectedly, the solution
structure of the most potent stapled peptide, DD5-o, revealed an α-helical
conformation in methanol, stabilized by an unusual (i,i+3) staple which cross-links two d-amino
acids. We also developed a novel assay for cell penetration that reports
exclusively on cytosolic access and used it to quantitatively compare
the cell penetration of DD5-o and other autophagy-inducing peptides.
These new, cell-penetrant autophagy inducers and their molecular details
are critical advances in the effort to understand and control autophagy.
More broadly, diversity-oriented stapling may provide a promising
alternative to polycationic sequences as a means for rendering peptides
more cell-penetrant.
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Affiliation(s)
- Leila Peraro
- Department of Chemistry, Tufts University , Medford, Massachusetts 02155, United States
| | | | - Kamlesh M Makwana
- Department of Chemistry, Tufts University , Medford, Massachusetts 02155, United States
| | - Ashleigh E Cummings
- Department of Chemistry, Tufts University , Medford, Massachusetts 02155, United States
| | | | - Hongtao Yu
- Department of Chemistry, Tufts University , Medford, Massachusetts 02155, United States
| | - Yu-Shan Lin
- Department of Chemistry, Tufts University , Medford, Massachusetts 02155, United States
| | | | - Joshua A Kritzer
- Department of Chemistry, Tufts University , Medford, Massachusetts 02155, United States
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45
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Hu K, Sun C, Yu M, Li W, Lin H, Guo J, Jiang Y, Lei C, Li Z. Dual In-Tether Chiral Centers Modulate Peptide Helicity. Bioconjug Chem 2017; 28:1537-1543. [DOI: 10.1021/acs.bioconjchem.7b00171] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kuan Hu
- School
of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, Guangdong 518055, China
| | - Chengjie Sun
- School
of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, Guangdong 518055, China
| | - Mengying Yu
- School
of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, Guangdong 518055, China
| | - Wenjun Li
- School
of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, Guangdong 518055, China
| | - Huacan Lin
- School
of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, Guangdong 518055, China
| | - Jialin Guo
- Shenzhen Senior High School, Shenzhen, Guangdong 518001, China
| | - Yixiang Jiang
- School
of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, Guangdong 518055, China
| | - Chengxiang Lei
- School
of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, Guangdong 518055, China
| | - Zigang Li
- School
of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, Guangdong 518055, China
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46
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Rojas AJ, Zhang C, Vinogradova EV, Buchwald NH, Reilly J, Pentelute BL, Buchwald SL. Divergent unprotected peptide macrocyclisation by palladium-mediated cysteine arylation. Chem Sci 2017; 8:4257-4263. [PMID: 29081961 PMCID: PMC5635729 DOI: 10.1039/c6sc05454d] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 03/13/2017] [Indexed: 12/22/2022] Open
Abstract
Macrocyclic peptides are important therapeutic candidates due to their improved physicochemical properties in comparison to their linear counterparts.
Macrocyclic peptides are important therapeutic candidates due to their improved physicochemical properties in comparison to their linear counterparts. Here we detail a method for a divergent macrocyclisation of unprotected peptides by crosslinking two cysteine residues with bis-palladium organometallic reagents. These synthetic intermediates are prepared in a single step from commercially available aryl bis-halides. Two bioactive linear peptides with cysteine residues at i, i + 4 and i, i + 7 positions, respectively, were cyclised to introduce a diverse array of aryl and bi-aryl linkers. These two series of macrocyclic peptides displayed similar linker-dependent lipophilicity, phospholipid affinity, and unique volume of distributions. Additionally, one of the bioactive peptides showed target binding affinity that was predominantly affected by the length of the linker. Collectively, this divergent strategy allowed rapid and convenient access to various aryl linkers, enabling the systematic evaluation of the effect of appending unit on the medicinal properties of macrocyclic peptides.
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Affiliation(s)
- Anthony J Rojas
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , USA . ;
| | - Chi Zhang
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , USA . ;
| | - Ekaterina V Vinogradova
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , USA . ;
| | - Nathan H Buchwald
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , USA . ;
| | - John Reilly
- Novartis , Novartis Institutes for Biomedical Research Inc. , Cambridge , Massachusetts 02139 , USA
| | - Bradley L Pentelute
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , USA . ;
| | - Stephen L Buchwald
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , USA . ;
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47
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Gimenez D, Dose A, Robson NL, Sandford G, Cobb SL, Coxon CR. 2,2,2-Trifluoroethanol as a solvent to control nucleophilic peptide arylation. Org Biomol Chem 2017; 15:4081-4085. [DOI: 10.1039/c7ob00295e] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Trifluoroethanol enables selective perfluoro-heteroaromatic peptide arylation of cysteine residues.
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Affiliation(s)
| | - Anica Dose
- Durham University
- Department of Chemistry
- Durham
- UK
| | | | | | | | - Christopher R. Coxon
- School of Pharmacy and Biomolecular Sciences
- Byrom Street Campus
- Liverpool John Moores University
- Liverpool
- UK
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48
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Goyal B, Srivastava KR, Durani S. Examination of the Effect of N-terminal Diproline and Charged Side Chains on the Stabilization of Helical Conformation in Alanine-based Short Peptides: A Molecular Dynamics Study. ChemistrySelect 2016. [DOI: 10.1002/slct.201601381] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Bhupesh Goyal
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai-400076 India
- Department of Chemistry; School of Basic and Applied Sciences; Sri Guru Granth Sahib World University, Fatehgarh; Sahib-140406, Punjab India
| | - Kinshuk Raj Srivastava
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai-400076 India
- Life Sciences Institute; University of Michigan; Ann Arbor, MI USA 48105
| | - Susheel Durani
- Department of Chemistry; Indian Institute of Technology Bombay, Powai; Mumbai-400076 India
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49
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Fairlie DP, Dantas de Araujo A. Stapling peptides using cysteine crosslinking. Pept Sci (Hoboken) 2016; 106:843-852. [DOI: 10.1002/bip.22877] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 04/11/2016] [Accepted: 05/04/2016] [Indexed: 12/28/2022]
Affiliation(s)
- David P Fairlie
- Institute for Molecular Bioscience, the University of QueenslandBrisbane QLD4072 Australia
| | - Aline Dantas de Araujo
- Institute for Molecular Bioscience, the University of QueenslandBrisbane QLD4072 Australia
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50
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Hopkins BA, Smith GF, Sciammetta N. Synthesis of Cyclic Peptidomimetics via a Pd-Catalyzed Macroamination Reaction. Org Lett 2016; 18:4072-5. [DOI: 10.1021/acs.orglett.6b01961] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brett A. Hopkins
- Discovery Chemistry, Merck Research Laboratories, 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Graham F. Smith
- Discovery Chemistry, Merck Research Laboratories, 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Nunzio Sciammetta
- Discovery Chemistry, Merck Research Laboratories, 33 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
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