1
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Alamri A. Sema-3E/PlexinD1 axis modulates dendritic cell phenotypes and functions: Current status and future implications. Hum Immunol 2024; 85:110815. [PMID: 38772051 DOI: 10.1016/j.humimm.2024.110815] [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: 01/27/2024] [Revised: 05/03/2024] [Accepted: 05/15/2024] [Indexed: 05/23/2024]
Abstract
This comprehensive research review explores the complex interplay between the Sema-3E/PlexinD1 axis and dendritic cells (DCs), highlighting its critical role in immune modulation with implications for clinical application Critical regulators of immune responses Dendritic cells are central to adaptive immunity, and the Sema-3E /PlexinD1 axis emerges as a key modulator affecting their phenotypes and functions Review delineates the impact of this signaling axis on DC maturation, migration, antigen presentation, and cytokine production, unravels its multifaceted role in shaping the immune response. Recognizing the limitations and gaps in current knowledge, the study highlights the need for further studies to condition downstream signaling events and related information experienced by the Sema-3E/PlexinD1 axis emphasizes the clarity of the immune system. The review concludes by identifying opportunities for translation, focusing on therapeutic and diagnostic potential. It highlights the importance of collaborative, interdisciplinary efforts to address the challenges and harness the therapeutic and pathological potential of targeting the Sema-3E/PlexinD1 axis, thus opening the way for transformative advances in immunology and clinical medicine.
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Affiliation(s)
- Abdulaziz Alamri
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
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2
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Khatua K, Alugubelli YR, Yang KS, Vulupala VR, Blankenship LR, Coleman D, Atla S, Chaki SP, Geng ZZ, Ma XR, Xiao J, Chen PH, Cho CCD, Sharma S, Vatansever EC, Ma Y, Yu G, Neuman BW, Xu S, Liu WR. Azapeptides with unique covalent warheads as SARS-CoV-2 main protease inhibitors. Antiviral Res 2024; 225:105874. [PMID: 38555023 PMCID: PMC11070182 DOI: 10.1016/j.antiviral.2024.105874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/16/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
The main protease (MPro) of SARS-CoV-2, the causative agent of COVID-19, is a pivotal nonstructural protein critical for viral replication and pathogenesis. Its protease function relies on three active site pockets for substrate recognition and a catalytic cysteine for enzymatic activity. To develop potential SARS-CoV-2 antivirals, we successfully synthesized a diverse range of azapeptide inhibitors with various covalent warheads to target MPro's catalytic cysteine. Our characterization identified potent MPro inhibitors, including MPI89 that features an aza-2,2-dichloroacetyl warhead with a remarkable EC50 value of 10 nM against SARS-CoV-2 infection in ACE2+ A549 cells and a selective index of 875. MPI89 is also remarkably selective and shows no potency against SARS-CoV-2 papain-like protease and several human proteases. Crystallography analyses demonstrated that these inhibitors covalently engaged the catalytic cysteine and used the aza-amide carbonyl oxygen to bind to the oxyanion hole. MPI89 stands as one of the most potent MPro inhibitors, suggesting the potential for further exploration of azapeptides and the aza-2,2-dichloroacetyl warhead for developing effective therapeutics against COVID-19.
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Affiliation(s)
- Kaustav Khatua
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Yugendar R Alugubelli
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Kai S Yang
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Veerabhadra R Vulupala
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Lauren R Blankenship
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Demonta Coleman
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Sandeep Atla
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Sankar P Chaki
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - Zhi Zachary Geng
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Xinyu R Ma
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Jing Xiao
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Peng-Hsun Chen
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Chia-Chuan D Cho
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Shivangi Sharma
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Erol C Vatansever
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Yuying Ma
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Ge Yu
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA
| | - Benjamin W Neuman
- Department of Biology, Texas A&M University, College Station, TX 77843, USA; Texas A&M Global Health Research Complex, Texas A&M University, College Station, TX 77843, USA; Health Science Centre, Department of Molecular Pathogenesis and Immunology, Texas A&M University, College Station, TX 77843, USA
| | - Shiqing Xu
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA; Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, TX 77843, USA.
| | - Wenshe Ray Liu
- Texas A&M Drug Discovery Center and Department of Chemistry, Texas A&M University, College Station, TX 77854, USA; Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, TX 77843, USA; Institute of Biosciences and Technology and Department of Translational Medical Sciences, College of Medicine, Texas A&M University, Houston, TX 77030, USA; Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA; Department of Cell Biology and Genetics, College of Medicine, Texas A&M University, College Station, TX 77843, USA.
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3
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Tarchoun K, Soltész D, Farkas V, Lee HJ, Szabó I, Bánóczi Z. Influence of Aza-Glycine Substitution on the Internalization of Penetratin. Pharmaceutics 2024; 16:477. [PMID: 38675138 PMCID: PMC11053488 DOI: 10.3390/pharmaceutics16040477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
The cell-penetrating peptide (CPP) penetratin has gained much attention over many years due to its potential role as a transporter for a broad range of cargo into cells. The modification of penetratin has been extensively investigated too. Aza-peptides are peptide analogs in which one or more of the amino residues are replaced by a semicarbazide. This substitution results in conformational restrictions and modifications in hydrogen bonding properties, which affect the structure and may lead to enhanced activity and selectivity of the modified peptide. In this work, the Trp residues of penetratin were substituted by aza-glycine or glycine residues to examine the effect of these modifications on the cellular uptake and the internalization mechanism. The substitution of Trp48 or Trp48,56 dramatically reduced the internalization, showing the importance of Trp48 in cellular uptake. Interestingly, while aza-glycine in the position of Trp56 increased the cellular uptake, Gly reduced it. The two Trp-modified derivatives showed altered internalization pathways, too. Based on our knowledge, this is the first study about the effect of aza-amino acid substitution on the cell entry of CPPs. Our results suggest that aza-amino acid insertion is a useful modification to change the internalization of a CPP.
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Affiliation(s)
- Karima Tarchoun
- Institute of Chemistry, Faculty of Science, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary; (K.T.); (D.S.)
- Hevesy György PhD School of Chemistry, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
| | - Dóra Soltész
- Institute of Chemistry, Faculty of Science, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary; (K.T.); (D.S.)
- Hevesy György PhD School of Chemistry, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary
| | - Viktor Farkas
- HUN-REN-ELTE Protein Modeling Research Group, Institute of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary;
| | - Ho-Jin Lee
- Department of Natural Sciences, Southwest Tennessee Community College, Memphis, TN 38015, USA;
- Division of Natural and Mathematics Sciences, LeMoyne-Own College, Memphis, TN 38126, USA
| | - Ildikó Szabó
- HUN-REN-ELTE Research Group of Peptide Chemistry, 1117 Budapest, Hungary;
| | - Zoltán Bánóczi
- Institute of Chemistry, Faculty of Science, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, 1117 Budapest, Hungary; (K.T.); (D.S.)
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4
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Shi C, Kaffy J, Ha-Duong T, Gallard JF, Pruvost A, Mabondzo A, Ciccone L, Ongeri S, Tonali N. Proteolytically Stable Diaza-Peptide Foldamers Mimic Helical Hot Spots of Protein-Protein Interactions and Act as Natural Chaperones. J Med Chem 2023; 66:12005-12017. [PMID: 37632446 DOI: 10.1021/acs.jmedchem.3c00611] [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: 08/28/2023]
Abstract
A novel class of peptidomimetic foldamers based on diaza-peptide units are reported. Circular dichroism, attenuated total reflection -Fourier transform infrared, NMR, and molecular dynamics studies demonstrate that unlike the natural parent nonapeptide, the specific incorporation of one diaza-peptide unit at the N-terminus allows helical folding in water, which is further reinforced by the introduction of a second unit at the C-terminus. The ability of these foldamers to resist proteolysis, to mimic the small helical hot spot of transthyretin-amyloid β (Aβ) cross-interaction, and to decrease pathological Aβ aggregation demonstrates that the introduction of diaza-peptide units is a valid approach for designing mimics or inhibitors of protein-protein interaction and other therapeutic peptidomimetics. This study also reveals that small peptide foldamers can play the same role as physiological chaperone proteins and opens a new way to design inhibitors of amyloid protein aggregation, a hallmark of more than 20 serious human diseases such as Alzheimer's disease.
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Affiliation(s)
- Chenghui Shi
- Université Paris-Saclay, CNRS, BioCIS, Bat. Henri Moissan, 17 av. des Sciences, 91400 Orsay, France
| | - Julia Kaffy
- Université Paris-Saclay, CNRS, BioCIS, Bat. Henri Moissan, 17 av. des Sciences, 91400 Orsay, France
| | - Tâp Ha-Duong
- Université Paris-Saclay, CNRS, BioCIS, Bat. Henri Moissan, 17 av. des Sciences, 91400 Orsay, France
| | - Jean-François Gallard
- Equipe Biologie et Chimie Structurales, Dept Chimie et Biologie Structurales et Analytiques, ICSN CNRS, Université Paris Saclay, 1 avenue de la terrasse, 91190 Gif sur Yvette, France
| | - Alain Pruvost
- CEA, INRAE, Département Médicaments et Technologies pour La Santé, Université Paris-Saclay, SPI 91191 Gif-sur-Yvette, France
| | - Aloise Mabondzo
- CEA, INRAE, Département Médicaments et Technologies pour La Santé, Université Paris-Saclay, SPI 91191 Gif-sur-Yvette, France
| | - Lidia Ciccone
- Department of Pharmacy, University of Pisa, 56126 Pisa, Italy
| | - Sandrine Ongeri
- Université Paris-Saclay, CNRS, BioCIS, Bat. Henri Moissan, 17 av. des Sciences, 91400 Orsay, France
| | - Nicolo Tonali
- Université Paris-Saclay, CNRS, BioCIS, Bat. Henri Moissan, 17 av. des Sciences, 91400 Orsay, France
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5
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Shah SKH, Modi U, Patel K, James A, N S, De S, Vasita R, Prabhakaran P. Site-selective post-modification of short α/γ hybrid foldamers: a powerful approach for molecular diversification towards biomedical applications. Biomater Sci 2023; 11:6210-6222. [PMID: 37526301 DOI: 10.1039/d3bm00766a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
The extensive research work in the exhilarating area of foldamers (artificial oligomers possessing well-defined conformation in solution) has shown them to be promising candidates in biomedical research and materials science. The post-modification approach is successful in peptides, proteins, and polymers to modulate their functions. To the best of our knowledge, site-selective post-modification of a foldamer affording molecules with different pendant functional groups within a molecular scaffold has not yet been reported. We demonstrate for the first time that late-stage site-selective functionalization of short hybrid oligomers is an efficient approach to afford molecules with diverse functional groups. In this article, we report the design and synthesis of hybrid peptides with repeating units of leucine (Leu) and 5-amino salicylic acid (ASA), regioselective post-modification, conformational analyses (based on solution-state NMR, circular dichroism and computational studies) and morphological studies of the peptide nanostructures. As a proof-of-concept, we demonstrate the applications of differently modified peptides as drug delivery agents, imaging probes, and anticancer agents. The novel feature of the work is that the difference in reactivity of two phenolic OH groups in short biomimetic peptides was utilized to achieve site-selective post-modification. It is challenging to apply the same approach to short α-peptides having a poor folding tendency, and their post-functionalization may considerably affect their conformation.
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Affiliation(s)
| | - Unnati Modi
- School of Life Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Karma Patel
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India.
| | - Anjima James
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682022, India
| | - Sreerag N
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India.
| | - Susmita De
- Department of Chemistry, University of Calicut, Calicut 673635, India
| | - Rajesh Vasita
- School of Life Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Panchami Prabhakaran
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India.
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6
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Stubbing LA, Hubert JG, Bell-Tyrer J, Hermant YO, Yang SH, McSweeney AM, McKenzie-Goldsmith GM, Ward VK, Furkert DP, Brimble MA. P 1 Glutamine isosteres in the design of inhibitors of 3C/3CL protease of human viruses of the Pisoniviricetes class. RSC Chem Biol 2023; 4:533-547. [PMID: 37547456 PMCID: PMC10398354 DOI: 10.1039/d3cb00075c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 06/19/2023] [Indexed: 08/08/2023] Open
Abstract
Viral infections are one of the leading causes of acute morbidity in humans and much endeavour has been made by the synthetic community for the development of drugs to treat associated diseases. Peptide-based enzyme inhibitors, usually short sequences of three or four residues, are one of the classes of compounds currently under development for enhancement of their activity and pharmaceutical properties. This review reports the advances made in the design of inhibitors targeting the family of highly conserved viral proteases 3C/3CLpro, which play a key role in viral replication and present minimal homology with mammalian proteases. Particular focus is put on the reported development of P1 glutamine isosteres to generate potent inhibitors mimicking the natural substrate sequence at the site of recognition.'
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Affiliation(s)
- Louise A Stubbing
- School of Chemical Sciences, The University of Auckland 23 Symonds Street and 3b Symonds Street Auckland 1142 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland 3b Symonds Street Auckland 1142 New Zealand
| | - Jonathan G Hubert
- School of Chemical Sciences, The University of Auckland 23 Symonds Street and 3b Symonds Street Auckland 1142 New Zealand
| | - Joseph Bell-Tyrer
- School of Chemical Sciences, The University of Auckland 23 Symonds Street and 3b Symonds Street Auckland 1142 New Zealand
| | - Yann O Hermant
- School of Chemical Sciences, The University of Auckland 23 Symonds Street and 3b Symonds Street Auckland 1142 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland 3b Symonds Street Auckland 1142 New Zealand
| | - Sung Hyun Yang
- School of Chemical Sciences, The University of Auckland 23 Symonds Street and 3b Symonds Street Auckland 1142 New Zealand
| | - Alice M McSweeney
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland 3b Symonds Street Auckland 1142 New Zealand
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago PO Box 56, 720 Cumberland Street Dunedin 9054 New Zealand
| | - Geena M McKenzie-Goldsmith
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland 3b Symonds Street Auckland 1142 New Zealand
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago PO Box 56, 720 Cumberland Street Dunedin 9054 New Zealand
| | - Vernon K Ward
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland 3b Symonds Street Auckland 1142 New Zealand
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago PO Box 56, 720 Cumberland Street Dunedin 9054 New Zealand
| | - Daniel P Furkert
- School of Chemical Sciences, The University of Auckland 23 Symonds Street and 3b Symonds Street Auckland 1142 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland 3b Symonds Street Auckland 1142 New Zealand
| | - Margaret A Brimble
- School of Chemical Sciences, The University of Auckland 23 Symonds Street and 3b Symonds Street Auckland 1142 New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland 3b Symonds Street Auckland 1142 New Zealand
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7
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Sang P, Cai J. Unnatural helical peptidic foldamers as protein segment mimics. Chem Soc Rev 2023; 52:4843-4877. [PMID: 37401344 PMCID: PMC10389297 DOI: 10.1039/d2cs00395c] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Indexed: 07/05/2023]
Abstract
Unnatural helical peptidic foldamers have attracted considerable attention owing to their unique folding behaviours, diverse artificial protein binding mechanisms, and promising applications in chemical, biological, medical, and material fields. Unlike the conventional α-helix consisting of molecular entities of native α-amino acids, unnatural helical peptidic foldamers are generally comprised of well-defined backbone conformers with unique and unnatural structural parameters. Their folded structures usually arise from unnatural amino acids such as N-substituted glycine, N-substituted-β-alanine, β-amino acid, urea, thiourea, α-aminoxy acid, α-aminoisobutyric acid, aza-amino acid, aromatic amide, γ-amino acid, as well as sulfono-γ-AA amino acid. They can exhibit intriguing and predictable three-dimensional helical structures, generally featuring superior resistance to proteolytic degradation, enhanced bioavailability, and improved chemodiversity, and are promising in mimicking helical segments of various proteins. Although it is impossible to include every piece of research work, we attempt to highlight the research progress in the past 10 years in exploring unnatural peptidic foldamers as protein helical segment mimics, by giving some representative examples and discussing the current challenges and future perspectives. We expect that this review will help elucidate the principles of structural design and applications of existing unnatural helical peptidic foldamers in protein segment mimicry, thereby attracting more researchers to explore and generate novel unnatural peptidic foldamers with unique structural and functional properties, leading to more unprecedented and practical applications.
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Affiliation(s)
- Peng Sang
- Tianjian Laboratory of Advanced Biomedical Sciences, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.
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8
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Costa L, Sousa E, Fernandes C. Cyclic Peptides in Pipeline: What Future for These Great Molecules? Pharmaceuticals (Basel) 2023; 16:996. [PMID: 37513908 PMCID: PMC10386233 DOI: 10.3390/ph16070996] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/06/2023] [Accepted: 07/08/2023] [Indexed: 07/30/2023] Open
Abstract
Cyclic peptides are molecules that are already used as drugs in therapies approved for various pharmacological activities, for example, as antibiotics, antifungals, anticancer, and immunosuppressants. Interest in these molecules has been growing due to the improved pharmacokinetic and pharmacodynamic properties of the cyclic structure over linear peptides and by the evolution of chemical synthesis, computational, and in vitro methods. To date, 53 cyclic peptides have been approved by different regulatory authorities, and many others are in clinical trials for a wide diversity of conditions. In this review, the potential of cyclic peptides is presented, and general aspects of their synthesis and development are discussed. Furthermore, an overview of already approved cyclic peptides is also given, and the cyclic peptides in clinical trials are summarized.
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Affiliation(s)
- Lia Costa
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal
| | - Emília Sousa
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal
| | - Carla Fernandes
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal
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9
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Teng P, Shao H, Huang B, Xie J, Cui S, Wang K, Cai J. Small Molecular Mimetics of Antimicrobial Peptides as a Promising Therapy To Combat Bacterial Resistance. J Med Chem 2023; 66:2211-2234. [PMID: 36739538 DOI: 10.1021/acs.jmedchem.2c00757] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Clinically, antibiotics are widely used to treat infectious diseases; however, excessive drug abuse and overuse exacerbate the prevalence of drug-resistant bacterial pathogens, making the development of novel antibiotics extremely difficult. Antimicrobial peptide (AMP) is one of the most promising candidates for overcoming bacterial resistance owing to its unique structure and mechanism of action. This study examines the development of small molecular mimetics of AMPs over the past two decades. These mimetics can selectively disrupt membranes, which are the characteristic antibacterial mechanism of AMPs. In addition, the advantages and disadvantages of small AMP mimetics are discussed. The small molecular mimetics of AMPs are anticipated to garner interest and investment in discovering new antibiotics. This Perspective will assist in revitalizing the golden age of antibiotics in the current era of combating bacterial resistance.
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Affiliation(s)
- Peng Teng
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, P. R. China
| | - Haodong Shao
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, P. R. China
| | - Bo Huang
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
| | - Junqiu Xie
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, China
| | - Sunliang Cui
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang 310058, P. R. China
| | - Kairong Wang
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Lanzhou University, West Donggang Road 199, Lanzhou, 730000, China
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, Florida 33620, United States
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10
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Habashi M, Chauhan PS, Vutla S, Senapati S, Diachkov M, El-Husseini A, Guérin B, Lubell WD, Rahimipour S. Aza-Residue Modulation of Cyclic d,l-α-Peptide Nanotube Assembly with Enhanced Anti-Amyloidogenic Activity. J Med Chem 2023; 66:3058-3072. [PMID: 36763536 DOI: 10.1021/acs.jmedchem.2c02049] [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: 02/11/2023]
Abstract
Transient soluble oligomers of amyloid-β (Aβ) are considered among the most toxic species in Alzheimer's disease (AD). Soluble Aβ oligomers accumulate early prior to insoluble plaque formation and cognitive impairment. The cyclic d,l-α-peptide CP-2 (1) self-assembles into nanotubes and demonstrates promising anti-amyloidogenic activity likely by a mechanism involving engagement of soluble oligomers. Systematic replacement of the residues in peptide 1 with aza-amino acid counterparts was performed to explore the effects of hydrogen bonding on propensity to mitigate Aβ aggregation and toxicity. Certain azapeptides exhibited improved ability to engage, alter the secondary structure, and inhibit aggregation of Aβ. Moreover, certain azapeptides disassembled preformed Aβ fibrils and protected cells from Aβ-mediated toxicity. Substitution of the l-norleucine3 and d-serine6 residues in peptide 1 with aza-norleucine and aza-homoserine provided, respectively, nontoxic [azaNle3]-1 (4) and [azaHse6]-1 (7), that significantly abated symptoms in a transgenic Caenorhabditis elegans AD model by decreasing Aβ oligomer levels.
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Affiliation(s)
- Maram Habashi
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Pradeep S Chauhan
- Département de Chimie, Université de Montréal, Complexe des Sciences, B-3015 1375 Avenue Thérèse-Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
| | - Suresh Vutla
- Département de Chimie, Université de Montréal, Complexe des Sciences, B-3015 1375 Avenue Thérèse-Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
| | - Sudipta Senapati
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Mykhailo Diachkov
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Ali El-Husseini
- Département de Chimie, Université de Montréal, Complexe des Sciences, B-3015 1375 Avenue Thérèse-Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
| | - Brigitte Guérin
- Department of Nuclear Medicine and Radiobiology, Université de Sherbrooke 3001, 12e Avenue Nord, Sherbrooke, Quebec J1H 5N4, Canada
- Sherbrooke Molecular Imaging Center (CIMS), Research centre of the CHUS (CRCHUS) 3001, 12e Avenue Nord, Sherbrooke, Quebec J1H 5N4, Canada
| | - William D Lubell
- Département de Chimie, Université de Montréal, Complexe des Sciences, B-3015 1375 Avenue Thérèse-Lavoie-Roux, Montréal, Québec H2V 0B3, Canada
| | - Shai Rahimipour
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
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11
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Perumal G, Govindan K, Jayaram A, Sundaramoorthi S, Lin W. Preliminary investigation on biological possessions of Saquinavir‐modified quinoline‐derived azadipeptidomimetics. J CHIN CHEM SOC-TAIP 2023. [DOI: 10.1002/jccs.202200504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Gopi Perumal
- Department of Chemistry Vellore Institute of Technology Vellore India
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung Taiwan, ROC
| | - Karthick Govindan
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung Taiwan, ROC
| | - Alageswaran Jayaram
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung Taiwan, ROC
| | | | - Wei‐Yu Lin
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung Taiwan, ROC
- Department of Medical Research Kaohsiung Medical University Hospital Kaohsiung Taiwan, ROC
- Drug Development and Value Creation Research Centre Kaohsiung Medical University Kaohsiung Taiwan, ROC
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12
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Ibrahim MIA, Solimando X, Stefan L, Pickaert G, Babin J, Arnal-Herault C, Roizard D, Jonquières A, Bodiguel J, Averlant-Petit MC. A lysine-based 2:1-[α/aza]-pseudopeptide series used as additives in polymeric membranes for CO 2 capture: synthesis, structural studies, and application †. RSC Adv 2023; 13:10051-10067. [PMID: 37006376 PMCID: PMC10052764 DOI: 10.1039/d3ra00409k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 03/05/2023] [Indexed: 03/30/2023] Open
Abstract
The current study presents for the first time the synthesis of a new 2:1-[α/aza]-pseudopeptide series possessing charged amino acids (i.e., lysine) and aims at studying the influences of chirality, backbone length, and the nature of the lysine side chains on the conformation of the 2:1-[α/aza]-oligomers in solution using NMR, FTIR spectroscopy and molecular dynamic calculations. The spectroscopic results emphasized the conservation of the β-turn conformation adopted by the trimers regardless of the chirality which demonstrated a noticeable effect on the conformation of homochiral hexamer (8c) compared with the hetero-analogue (8d). The molecular dynamic calculations predicted that the chirality and the side chain of the lysine residues caused a little distortion from the classical β-turn conformation in the case of short trimer sequences (7c and 7d), while the chirality and the backbone length exerted more distortion on the β-turn adopted by the longer hexamer sequences (8c and 8d). The large disturbance in hexamers from classical β-turn was attributed to increasing the flexibility and the possibility of molecules to adopt a more energetically favorable conformation stabilized by non-classical β-turn intramolecular hydrogen bonds. Thus, alternating d- and l-lysine amino acids in the 2:1-[α/aza]-hexamer (8d) decreases the high steric hindrance between the lysine side chains, as in the homo analogue (8c), and the distortion is less recognized. Finally, short sequences of aza-pseudopeptides containing lysine residues improve CO2 separation when used as additives in Pebax® 1074 membranes. The best membrane performances were obtained with a pseudopeptidic dimer as an additive (6b′; deprotected lysine side chain), with an increase in both ideal selectivity αCO2/N2 (from 42.8 to 47.6) and CO2 permeability (from 132 to 148 Barrer) compared to the virgin Pebax® 1074 membrane. A new 2:1-[α/aza]-pseudopeptide series based charged lysine amino acid was synthesized. Influences of chirality, backbone length, and lysine side chains on the oligomers conformation were investigated in solution using NMR, FTIR and MD calculations.![]()
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Affiliation(s)
- Mohamed I. A. Ibrahim
- Université de Lorraine, CNRS, LCPMF-54000 NancyFrance
- National Institute of Oceanography and Fisheries, NIOFEgypt
- Hiroshima Synchrotron Radiation Center, Hiroshima University2-313 Kagamiyama, Higashi-HiroshimaHiroshima 739-0046Japan
| | | | - Loïc Stefan
- Université de Lorraine, CNRS, LCPMF-54000 NancyFrance
| | | | - Jérôme Babin
- Université de Lorraine, CNRS, LCPMF-54000 NancyFrance
| | | | - Denis Roizard
- Université de Lorraine, CNRS, LRGPF-54000 NancyFrance
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13
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Altiti A, He M, VanPatten S, Cheng KF, Ahmed U, Chiu PY, Mughrabi IT, Jabari BA, Burch RM, Manogue KR, Tracey KJ, Diamond B, Metz CN, Yang H, Hudson LK, Zanos S, Son M, Sherry B, Coleman TR, Al-Abed Y. Thiocarbazate building blocks enable the construction of azapeptides for rapid development of therapeutic candidates. Nat Commun 2022; 13:7127. [PMID: 36443291 PMCID: PMC9705435 DOI: 10.1038/s41467-022-34712-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 11/03/2022] [Indexed: 11/29/2022] Open
Abstract
Peptides, polymers of amino acids, comprise a vital and expanding therapeutic approach. Their rapid degradation by proteases, however, represents a major limitation to their therapeutic utility and chemical modifications to native peptides have been employed to mitigate this weakness. Herein, we describe functionalized thiocarbazate scaffolds as precursors of aza-amino acids, that, upon activation, can be integrated in a peptide sequence to generate azapeptides using conventional peptide synthetic methods. This methodology facilitates peptide editing-replacing targeted amino acid(s) with aza-amino acid(s) within a peptide-to form azapeptides with preferred therapeutic characteristics (extending half-life/bioavailability, while at the same time typically preserving structural features and biological activities). We demonstrate the convenience of this azapeptide synthesis platform in two well-studied peptides with short half-lives: FSSE/P5779, a tetrapeptide inhibitor of HMGB1/MD-2/TLR4 complex formation, and bradykinin, a nine-residue vasoactive peptide. This bench-stable thiocarbazate platform offers a robust and universal approach to optimize peptide-based therapeutics.
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Affiliation(s)
- Ahmad Altiti
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA.
| | - Mingzhu He
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Sonya VanPatten
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Kai Fan Cheng
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Umair Ahmed
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Pui Yan Chiu
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Ibrahim T Mughrabi
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Bayan Al Jabari
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | | | - Kirk R Manogue
- Center for Molecular Innovation, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Kevin J Tracey
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Betty Diamond
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Christine N Metz
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Huan Yang
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - LaQueta K Hudson
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, USA
| | - Stavros Zanos
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Myoungsun Son
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Barbara Sherry
- Institute of Molecular Medicine, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Thomas R Coleman
- Center for Molecular Innovation, Feinstein Institutes for Medical Research, Manhasset, NY, USA
| | - Yousef Al-Abed
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA.
- Center for Molecular Innovation, Feinstein Institutes for Medical Research, Manhasset, NY, USA.
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14
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Härk HH, Troska A, Arujõe M, Burk P, Järv J, Ploom A. Kinetic study of aza-amino acid incorporation into peptide chains: Influence of the steric effect of the side chain. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Le Du E, Borrel J, Waser J. Copper-Catalyzed Alkynylation of Hydrazides: An Easy Access to Functionalized Azadipeptides. Org Lett 2022; 24:6614-6618. [PMID: 36066898 DOI: 10.1021/acs.orglett.2c02625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report a copper-catalyzed alkynylation of azadipeptides using ethynylbenziodoxolone (EBX) reagents. Nonsymmetrical ynehydrazides could be obtained in 25-97% yield using azaglycine derivatives as nucleophiles. The transformation is compatible with most functional groups naturally occurring on amino acid side chains and allows the transfer of silyl-, alkyl-, and aryl-substituted alkynes. The obtained α-alkynyl azaglycine products could be further functionalized by nucleophilic attack or cycloaddition on the triple bond.
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Affiliation(s)
- Eliott Le Du
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Julien Borrel
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
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16
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Shi C, Correia I, Tonali N, Ongeri S, Lequin O. Two consecutive aza-amino acids in peptides promote stable β-turn formation in water. Org Biomol Chem 2022; 20:8430-8437. [PMID: 36040477 DOI: 10.1039/d2ob01225a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Studies on the synthetic methodologies and the structural propensity of peptides containing consecutive aza-amino acids are still in their infancy. Here, details of the synthesis and conformational analysis of tripeptides containing two consecutive aza-amino acids are provided. The demonstration that the type I β-turn folding is induced, even in aqueous media, by the introduction of one or two lateral chains on the diaza-peptide unit is of particular importance for the design of peptidomimetics of biological interest.
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Affiliation(s)
- Chenghui Shi
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France.
| | - Isabelle Correia
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 place Jussieu, 75252 Paris Cedex 05, France.
| | - Nicolo Tonali
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France.
| | - Sandrine Ongeri
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France.
| | - Olivier Lequin
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 place Jussieu, 75252 Paris Cedex 05, France.
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17
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Dai C, Lian C, Fang H, Luo Q, Huang J, Yang M, Yang H, Zhu L, Zhang J, Yin F, Li Z. Diversity-Oriented Synthesis of ERα Modulators via Mitsunobu Macrocyclization. Org Lett 2022; 24:3532-3537. [PMID: 35546524 DOI: 10.1021/acs.orglett.2c01239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The diversity of cyclic peptides was expanded by elaborating Mitsunobu macrocyclization, tethering various hydroxy acid building blocks with different Nε-amine substituents. This new strategy was then applied in synthesizing peptidomimetic estrogen receptor modulator (PERM) analogs on the solid support. The PERM analogs exhibited increased serum peptidase stability, cell penetration, and estrogen receptor α binding affinity. Studying diversity-oriented methods for preparing azacyclopeptides provides a new tool for macrocycle construction and further structural information for optimizing ERα modulators for ER positive breast cancers.
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Affiliation(s)
- Chuan Dai
- Department of Pharmacy, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Shenzhen 518035, China.,Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.,Department of Pathogenic Biology and Immunology, Xiangnan University, Chenzhou 423043, China.,Innovative Drug Research Centre (IDRC), Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Chenshan Lian
- Pingshan translational medicine centre, Shenzhen Bay Laboratory, Shenzhen 518118, P. R. China.,State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Huilong Fang
- Department of Pathogenic Biology and Immunology, Xiangnan University, Chenzhou 423043, China
| | - Qinhong Luo
- Department of Pharmacy, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Shenzhen 518035, China.,Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.,Department of Pathogenic Biology and Immunology, Xiangnan University, Chenzhou 423043, China
| | - Junrong Huang
- Department of Pharmacy, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Shenzhen 518035, China
| | - Min Yang
- Department of Pharmacy, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Shenzhen 518035, China
| | - Heng Yang
- Department of Pharmacy, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Shenzhen 518035, China.,Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.,Department of Pathogenic Biology and Immunology, Xiangnan University, Chenzhou 423043, China
| | - Lizhi Zhu
- Department of Pharmacy, the First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital (Shenzhen Institute of Translational Medicine), Shenzhen 518035, China.,Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China.,Department of Pathogenic Biology and Immunology, Xiangnan University, Chenzhou 423043, China
| | - Jinqiang Zhang
- Innovative Drug Research Centre (IDRC), Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Feng Yin
- Pingshan translational medicine centre, Shenzhen Bay Laboratory, Shenzhen 518118, P. R. China.,State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
| | - Zigang Li
- Pingshan translational medicine centre, Shenzhen Bay Laboratory, Shenzhen 518118, P. R. China.,State Key Laboratory of Chemical Oncogenomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University, Shenzhen 518055, China
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18
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Kremsmayr T, Aljnabi A, Blanco-Canosa JB, Tran HNT, Emidio NB, Muttenthaler M. On the Utility of Chemical Strategies to Improve Peptide Gut Stability. J Med Chem 2022; 65:6191-6206. [PMID: 35420805 PMCID: PMC9059125 DOI: 10.1021/acs.jmedchem.2c00094] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
![]()
Inherent susceptibility
of peptides to enzymatic degradation in
the gastrointestinal tract is a key bottleneck in oral peptide drug
development. Here, we present a systematic analysis of (i) the gut
stability of disulfide-rich peptide scaffolds, orally administered
peptide therapeutics, and well-known neuropeptides and (ii) medicinal
chemistry strategies to improve peptide gut stability. Among a broad
range of studied peptides, cyclotides were the only scaffold class
to resist gastrointestinal degradation, even when grafted with non-native
sequences. Backbone cyclization, a frequently applied strategy, failed
to improve stability in intestinal fluid, but several site-specific
alterations proved efficient. This work furthermore highlights the
importance of standardized gut stability test conditions and suggests
defined protocols to facilitate cross-study comparison. Together,
our results provide a comparative overview and framework for the chemical
engineering of gut-stable peptides, which should be valuable for the
development of orally administered peptide therapeutics and molecular
probes targeting receptors within the gastrointestinal tract.
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Affiliation(s)
- Thomas Kremsmayr
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Währinger Straße 38, Vienna 1090, Austria
| | - Aws Aljnabi
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Währinger Straße 38, Vienna 1090, Austria
| | - Juan B Blanco-Canosa
- Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, Barcelona 08034, Spain
| | - Hue N T Tran
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Nayara Braga Emidio
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia
| | - Markus Muttenthaler
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Währinger Straße 38, Vienna 1090, Austria.,Institute for Molecular Bioscience, The University of Queensland, St Lucia, Queensland 4072, Australia
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19
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Abstract
Azapeptides undergo on-resin, late-stage N-alkylations to install side chains with high chemoselectivity for the hydrazide nitrogen atoms. The major product is the N1-alkylated "azapeptoid", with only small amounts (<10%) of alkylation occurring at the other aza-amino acid nitrogen (N2). Dialkylations are also possible and afford highly functionalized, disubstituted azapeptides with side chains installed on both aza-amino acid nitrogen atoms. The site-selectivity was determined using Edman degradation, MS/MS sequencing, and comparative LCMS and NMR analyses.
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Affiliation(s)
- Maxwell O Bowles
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Caroline Proulx
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
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20
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Benýšek J, Buša M, Rubešová P, Fanfrlík J, Lepšík M, Brynda J, Matoušková Z, Bartz U, Horn M, Gütschow M, Mareš M. Highly potent inhibitors of cathepsin K with a differently positioned cyanohydrazide warhead: structural analysis of binding mode to mature and zymogen-like enzymes. J Enzyme Inhib Med Chem 2022; 37:515-526. [PMID: 35144520 PMCID: PMC8843313 DOI: 10.1080/14756366.2021.2024527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cathepsin K (CatK) is a target for the treatment of osteoporosis, arthritis, and bone metastasis. Peptidomimetics with a cyanohydrazide warhead represent a new class of highly potent CatK inhibitors; however, their binding mechanism is unknown. We investigated two model cyanohydrazide inhibitors with differently positioned warheads: an azadipeptide nitrile Gü1303 and a 3-cyano-3-aza-β-amino acid Gü2602. Crystal structures of their covalent complexes were determined with mature CatK as well as a zymogen-like activation intermediate of CatK. Binding mode analysis, together with quantum chemical calculations, revealed that the extraordinary picomolar potency of Gü2602 is entropically favoured by its conformational flexibility at the nonprimed-primed subsites boundary. Furthermore, we demonstrated by live cell imaging that cyanohydrazides effectively target mature CatK in osteosarcoma cells. Cyanohydrazides also suppressed the maturation of CatK by inhibiting the autoactivation of the CatK zymogen. Our results provide structural insights for the rational design of cyanohydrazide inhibitors of CatK as potential drugs.
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Affiliation(s)
- Jakub Benýšek
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czech Republic.,First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Michal Buša
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czech Republic.,Department of Biochemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Petra Rubešová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Jindřich Fanfrlík
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Martin Lepšík
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Jiří Brynda
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Zuzana Matoušková
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Ulrike Bartz
- Department of Natural Sciences, University of Applied Sciences Bonn-Rhein-Sieg, Rheinbach, Germany
| | - Martin Horn
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Michael Gütschow
- Pharmaceutical Institute, Pharmaceutical & Medicinal Chemistry, University of Bonn, Germany
| | - Michael Mareš
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czech Republic
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21
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Lubell WD, Hamdane Y, Poupart J. N-Amino-imidazol-2-one (Nai) Residues as Tools for Peptide Mimicry: Synthesis, Conformational Analysis and Biomedical Applications. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0040-1719862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Abstract
N-Amino-imidazol-2-one (Nai) residues are tools for studying peptide-backbone and side-chain conformation and function. Recent methods for substituted Nai residue synthesis, conformational analysis by X-ray crystallography and computation, and biomedical applications are reviewed, demonstrating the utility of this constrained residue to favor biologically active turn conformers with defined χ-dihedral angle orientations.1 Introduction2 Synthetic Methods3 Conformational Analysis4 Biomedical Applications5 Conclusions
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22
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Zheng L, Zhuo X, Wang Y, Zou X, Zhong Y, Guo W. Photocatalytic cross-dehydrogenative coupling reaction toward the synthesis of N, N-disubstituted hydrazides and their bromides. Org Chem Front 2022. [DOI: 10.1039/d2qo00253a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An efficient strategy for the divergent synthesis of N,N-disubstituted hydrazides and their bromides is reported through photoredox-catalytic cross-dehydrogenative coupling of N,N-disubstituted hydrazines and aldehydes.
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Affiliation(s)
- Lvyin Zheng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Xiaoya Zhuo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Yihan Wang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Xiaoying Zou
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Yumei Zhong
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Wei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
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23
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Gagné-Monfette W, Vincent-Rocan JF, Lutes OC, O'Keefe GF, Jeanneret ADM, Blanger C, Ivanovich RA, Beauchemin AM. Investigation of Masked N-Acyl-N-isocyanates: Support for Oxadiazolones as Blocked N-Isocyanate Precursors. Chemistry 2021; 27:14051-14056. [PMID: 34406683 DOI: 10.1002/chem.202102301] [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: 06/26/2021] [Indexed: 11/07/2022]
Abstract
In contrast to carbon-substituted isocyanates that are common building blocks, N-substituted isocyanates remain underdeveloped and reports on their N-acyl derivatives (i. e. amido-isocyanates) are exceedingly rare. Herein, amido-isocyanates were investigated in the context of syntheses of aza-tripeptide and hydantoins subunits starting from simple bench-stable precursors. A key finding is that the amido-isocyanate formed in situ cyclized to yield an oxadiazolone, and that under suitable reaction conditions this heterocycle is a traceless blocked (masked) N-isocyanate. Using organic bases as catalysts and upon heating, oxadiazolone formation is observed, and various nucleophiles to provide the desired aza-dipeptides or hydantoins in moderate to high yields. Further support for an amido-isocyanate intermediate was obtained using carboxylic acids as nucleophiles, affording N-acylhydrazide products.
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Affiliation(s)
- William Gagné-Monfette
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 150 Louis-Pasteur Pvt, Ottawa, ON K1N 6N5, Canada
| | - Jean-François Vincent-Rocan
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 150 Louis-Pasteur Pvt, Ottawa, ON K1N 6N5, Canada
| | - Owen C Lutes
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 150 Louis-Pasteur Pvt, Ottawa, ON K1N 6N5, Canada
| | - Geneviève F O'Keefe
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 150 Louis-Pasteur Pvt, Ottawa, ON K1N 6N5, Canada
| | - Alexandria D M Jeanneret
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 150 Louis-Pasteur Pvt, Ottawa, ON K1N 6N5, Canada
| | - Claire Blanger
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 150 Louis-Pasteur Pvt, Ottawa, ON K1N 6N5, Canada
| | - Ryan A Ivanovich
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 150 Louis-Pasteur Pvt, Ottawa, ON K1N 6N5, Canada
| | - André M Beauchemin
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 150 Louis-Pasteur Pvt, Ottawa, ON K1N 6N5, Canada
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24
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Mastitski A, Troska A, Järv J. Synthesis of Nω,Νω–di-Boc-3-guanidylpropanal - An Important Reagent for Synthesis of Aza-Arg Precursors. ORG PREP PROCED INT 2021. [DOI: 10.1080/00304948.2021.1967022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Anton Mastitski
- Institute of Chemistry, University of Tartu, Ravila 14, 50411 Tartu, Estonia
| | - Alla Troska
- Institute of Chemistry, University of Tartu, Ravila 14, 50411 Tartu, Estonia
| | - Jaak Järv
- Institute of Chemistry, University of Tartu, Ravila 14, 50411 Tartu, Estonia
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25
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Bowles M, Proulx C. Solid phase submonomer azapeptide synthesis. Methods Enzymol 2021; 656:169-190. [PMID: 34325786 DOI: 10.1016/bs.mie.2021.04.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Azapeptides contain at least one aza-amino acid, where the α-carbon has been replaced by a nitrogen atom, and have found broad applicability in fields ranging from medicinal chemistry to biomaterials. In this chapter, we provide a step-by-step protocol for the solid phase submonomer synthesis of azapeptides, which includes three steps: (1) hydrazone activation and coupling onto a resin-bound peptide, (2) chemoselective semicarbazone functionalization for installation of the aza-amino acid side chain, and (3) orthogonal deprotection of the semicarbazone to complete the monomer addition cycle. We focus on semicarbazone functionalization by N-alkylation with primary alkyl halides, and describe conditions for coupling onto aza-amino acids. Such divergent methods accelerate the synthesis of peptidomimetics and allow the rapid introduction of a wide variety of natural and unnatural side chains directly on solid support using easily accessible submonomers.
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Affiliation(s)
- Maxwell Bowles
- Department of Chemistry, North Carolina State University, Raleigh, NC, United States
| | - Caroline Proulx
- Department of Chemistry, North Carolina State University, Raleigh, NC, United States.
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26
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Hamdane Y, Chauhan PS, Vutla S, Mulumba M, Ong H, Lubell WD. 5-Substituted N-Aminoimidazolone Peptide Mimic Synthesis by Organocatalyzed Reactions of Azopeptides and Use in the Analysis of Biologically Active Backbone and Side-Chain Topology. Org Lett 2021; 23:3491-3495. [PMID: 33886343 DOI: 10.1021/acs.orglett.1c00936] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Fifteen N-aminoimidazolone (Nai) dipeptides having a variety of 5-position side-chain groups were synthesized by regioselective proline-catalyzed reactions of azopeptide and aldehyde components followed by acid-mediated dehydration of an aza-aspartate semialdehyde intermediate. The introduction of 5-aryl-Nai dipeptides into cluster of differentiation 36 receptor (CD36) peptide ligands has provided insight into the conformation responsible for binding affinity and anti-inflammatory activity.
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27
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Wątły J, Miller A, Kozłowski H, Rowińska-Żyrek M. Peptidomimetics - An infinite reservoir of metal binding motifs in metabolically stable and biologically active molecules. J Inorg Biochem 2021; 217:111386. [PMID: 33610030 DOI: 10.1016/j.jinorgbio.2021.111386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/14/2021] [Accepted: 01/27/2021] [Indexed: 12/12/2022]
Abstract
The involvement of metal ions in interactions with therapeutic peptides is inevitable. They are one of the factors able to fine-tune the biological properties of antimicrobial peptides, a promising group of drugs with one large drawback - a problematic metabolic stability. Appropriately chosen, proteolytically stable peptidomimetics seem to be a reasonable solution of the problem, and the use of D-, β-, γ-amino acids, unnatural amino acids, azapeptides, peptoids, cyclopeptides and dehydropeptides is an infinite reservoir of metal binding motifs in metabolically stable, well-designed, biologically active molecules. Below, their specific structural features, metal-chelating abilities and antimicrobial potential are discussed.
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Affiliation(s)
- Joanna Wątły
- Faculty of Chemistry, University of Wroclaw, Joliot - Curie 14, Wroclaw 50-383, Poland.
| | - Adriana Miller
- Faculty of Chemistry, University of Wroclaw, Joliot - Curie 14, Wroclaw 50-383, Poland
| | - Henryk Kozłowski
- Faculty of Chemistry, University of Wroclaw, Joliot - Curie 14, Wroclaw 50-383, Poland; Department of Health Sciences, University of Opole, Katowicka 68, Opole 45-060, Poland
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28
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Corrigan TS, Lotti Diaz LM, Border SE, Ratigan SC, Kasper KQ, Sojka D, Fajtova P, Caffrey CR, Salvesen GS, McElroy CA, Hadad CM, Doğan Ekici Ö. Design, synthesis, and in vitro evaluation of aza-peptide aldehydes and ketones as novel and selective protease inhibitors. J Enzyme Inhib Med Chem 2021; 35:1387-1402. [PMID: 32633155 PMCID: PMC7470110 DOI: 10.1080/14756366.2020.1781107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Aza-peptide aldehydes and ketones are a new class of reversible protease inhibitors that are specific for the proteasome and clan CD cysteine proteases. We designed and synthesised aza-Leu derivatives that were specific for the chymotrypsin-like active site of the proteasome, aza-Asp derivatives that were effective inhibitors of caspases-3 and -6, and aza-Asn derivatives that inhibited S. mansoni and I. ricinus legumains. The crystal structure of caspase-3 in complex with our caspase-specific aza-peptide methyl ketone inhibitor with an aza-Asp residue at P1 revealed a covalent linkage between the inhibitor carbonyl carbon and the active site cysteinyl sulphur. Aza-peptide aldehydes and ketones showed no cross-reactivity towards cathepsin B or chymotrypsin. The initial in vitro selectivity of these inhibitors makes them suitable candidates for further development into therapeutic agents to potentially treat multiple myeloma, neurodegenerative diseases, and parasitic infections.
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Affiliation(s)
- Thomas S Corrigan
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Leilani M Lotti Diaz
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Sarah E Border
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Steven C Ratigan
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Kayla Q Kasper
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Daniel Sojka
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Ceske Budejovice, Czech Republic
| | - Pavla Fajtova
- Center for Discovery and Innovation in Parasitic Diseases, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
| | - Conor R Caffrey
- Center for Discovery and Innovation in Parasitic Diseases, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
| | - Guy S Salvesen
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Craig A McElroy
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Christopher M Hadad
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA
| | - Özlem Doğan Ekici
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, USA.,Department of Chemistry and Biochemistry, The Ohio State University at Newark, Newark, OH, USA
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29
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Jílková A, Horn M, Fanfrlík J, Küppers J, Pachl P, Řezáčová P, Lepšík M, Fajtová P, Rubešová P, Chanová M, Caffrey CR, Gütschow M, Mareš M. Azanitrile Inhibitors of the SmCB1 Protease Target Are Lethal to Schistosoma mansoni: Structural and Mechanistic Insights into Chemotype Reactivity. ACS Infect Dis 2021; 7:189-201. [PMID: 33301315 PMCID: PMC7802074 DOI: 10.1021/acsinfecdis.0c00644] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
![]()
Azapeptide
nitriles are postulated to reversibly covalently react
with the active-site cysteine residue of cysteine proteases and form
isothiosemicarbazide adducts. We investigated the interaction of azadipeptide
nitriles with the cathepsin B1 drug target (SmCB1) from Schistosoma
mansoni, a pathogen that causes the global neglected disease
schistosomiasis. Azadipeptide nitriles were superior inhibitors of
SmCB1 over their parent carba analogs. We determined the crystal structure
of SmCB1 in complex with an azadipeptide nitrile and analyzed the
reaction mechanism using quantum chemical calculations. The data demonstrate
that azadipeptide nitriles, in contrast to their carba counterparts,
undergo a change from E- to Z-configuration
upon binding, which gives rise to a highly favorable energy profile
of noncovalent and covalent complex formation. Finally, azadipeptide
nitriles were considerably more lethal than their carba analogs against
the schistosome pathogen in culture, supporting the further development
of this chemotype as a treatment for schistosomiasis.
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Affiliation(s)
- Adéla Jílková
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo n. 2, 16610 Prague 6, Czech Republic
| | - Martin Horn
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo n. 2, 16610 Prague 6, Czech Republic
| | - Jindřich Fanfrlík
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo n. 2, 16610 Prague 6, Czech Republic
| | - Jim Küppers
- Pharmaceutical Institute, Pharmaceutical & Medicinal Chemistry, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany
| | - Petr Pachl
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo n. 2, 16610 Prague 6, Czech Republic
| | - Pavlína Řezáčová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo n. 2, 16610 Prague 6, Czech Republic
| | - Martin Lepšík
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo n. 2, 16610 Prague 6, Czech Republic
| | - Pavla Fajtová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo n. 2, 16610 Prague 6, Czech Republic
| | - Petra Rubešová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo n. 2, 16610 Prague 6, Czech Republic
| | - Marta Chanová
- Institute of Immunology and Microbiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Studničkova 2028/7, 12800 Prague 2, Czech Republic
| | - Conor R. Caffrey
- Center for Discovery and Innovation in Parasitic Diseases (CDIPD), Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Michael Gütschow
- Pharmaceutical Institute, Pharmaceutical & Medicinal Chemistry, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany
| | - Michael Mareš
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo n. 2, 16610 Prague 6, Czech Republic
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30
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Miyata K, Narita A, Fujisawa R, Roppongi M, Ito S, Shingo T, Oba T. Synthesis of boronophenylalanine-like aza-amino acids for boron-containing azapeptide precursors. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152585] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Dai C, Wang F, Zhang D, Xu L, Xia X, Zhang J. Synthesis and Biological Evaluation of N-Aminoimidazolidin-2-one-Containing Angiotensin-(1-7) Peptidomimetics. Org Lett 2020; 22:8475-8479. [PMID: 33104369 DOI: 10.1021/acs.orglett.0c03070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
N-Aminoimidazolidin-2-one (Aid)-containing peptides with a constrained backbone present a novel class of peptidomimetics for drug discovery. The introduction of Aid residues into peptide sequences has been achieved by intramolecular Mitsunobu cyclization of a serine side chain onto the α-NH of an aza-glycine residue. The effectiveness of this new strategy was demonstrated by synthesizing six Aid-containing analogues of angiotensin-(1-7) on solid support. The Aid analogues of angiotensin-(1-7) exhibited increased peptidase stability against human ACE and DPP3 and improved anti-inflammation and antiproliferation activity.
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Affiliation(s)
- Chuan Dai
- Innovative Drug Research Centre (IDRC), Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Fang Wang
- Innovative Drug Research Centre (IDRC), Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Dandan Zhang
- Innovative Drug Research Centre (IDRC), Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Lei Xu
- Innovative Drug Research Centre (IDRC), Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Xuefeng Xia
- Innovative Drug Research Centre (IDRC), Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Jinqiang Zhang
- Innovative Drug Research Centre (IDRC), Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
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32
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Chu W, Prodromou R, Day KN, Schneible JD, Bacon KB, Bowen JD, Kilgore RE, Catella CM, Moore BD, Mabe MD, Alashoor K, Xu Y, Xiao Y, Menegatti S. Peptides and pseudopeptide ligands: a powerful toolbox for the affinity purification of current and next-generation biotherapeutics. J Chromatogr A 2020; 1635:461632. [PMID: 33333349 DOI: 10.1016/j.chroma.2020.461632] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/14/2020] [Accepted: 10/15/2020] [Indexed: 02/08/2023]
Abstract
Following the consolidation of therapeutic proteins in the fight against cancer, autoimmune, and neurodegenerative diseases, recent advancements in biochemistry and biotechnology have introduced a host of next-generation biotherapeutics, such as CRISPR-Cas nucleases, stem and car-T cells, and viral vectors for gene therapy. With these drugs entering the clinical pipeline, a new challenge lies ahead: how to manufacture large quantities of high-purity biotherapeutics that meet the growing demand by clinics and biotech companies worldwide. The protein ligands employed by the industry are inadequate to confront this challenge: while featuring high binding affinity and selectivity, these ligands require laborious engineering and expensive manufacturing, are prone to biochemical degradation, and pose safety concerns related to their bacterial origin. Peptides and pseudopeptides make excellent candidates to form a new cohort of ligands for the purification of next-generation biotherapeutics. Peptide-based ligands feature excellent target biorecognition, low or no toxicity and immunogenicity, and can be manufactured affordably at large scale. This work presents a comprehensive and systematic review of the literature on peptide-based ligands and their use in the affinity purification of established and upcoming biological drugs. A comparative analysis is first presented on peptide engineering principles, the development of ligands targeting different biomolecular targets, and the promises and challenges connected to the industrial implementation of peptide ligands. The reviewed literature is organized in (i) conventional (α-)peptides targeting antibodies and other therapeutic proteins, gene therapy products, and therapeutic cells; (ii) cyclic peptides and pseudo-peptides for protein purification and capture of viral and bacterial pathogens; and (iii) the forefront of peptide mimetics, such as β-/γ-peptides, peptoids, foldamers, and stimuli-responsive peptides for advanced processing of biologics.
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Affiliation(s)
- Wenning Chu
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way room 2-009, Raleigh, NC 27606
| | - Raphael Prodromou
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way room 2-009, Raleigh, NC 27606
| | - Kevin N Day
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way room 2-009, Raleigh, NC 27606
| | - John D Schneible
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way room 2-009, Raleigh, NC 27606
| | - Kaitlyn B Bacon
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way room 2-009, Raleigh, NC 27606
| | - John D Bowen
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way room 2-009, Raleigh, NC 27606
| | - Ryan E Kilgore
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way room 2-009, Raleigh, NC 27606
| | - Carly M Catella
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way room 2-009, Raleigh, NC 27606
| | - Brandyn D Moore
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way room 2-009, Raleigh, NC 27606
| | - Matthew D Mabe
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way room 2-009, Raleigh, NC 27606
| | - Kawthar Alashoor
- Department of Biochemistry and Biophysics, University of Rochester, Rochester, NY 14642
| | - Yiman Xu
- College of Material Science and Engineering, Donghua University, 201620 Shanghai, People's Republic of China
| | - Yuanxin Xiao
- College of Textile, Donghua University, Songjiang District, Shanghai, 201620, People's Republic of China
| | - Stefano Menegatti
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way room 2-009, Raleigh, NC 27606.
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33
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Ahmad J, Ikram S, Hafeez AB, Durdagi S. Physics-driven identification of clinically approved and investigation drugs against human neutrophil serine protease 4 (NSP4): A virtual drug repurposing study. J Mol Graph Model 2020; 101:107744. [PMID: 33032202 DOI: 10.1016/j.jmgm.2020.107744] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 08/29/2020] [Accepted: 08/31/2020] [Indexed: 01/19/2023]
Abstract
Neutrophils synthesize four immune associated serine proteases: Cathepsin G (CTSG), Elastase (ELANE), Proteinase 3 (PRTN3) and Neutrophil Serine Protease 4 (NSP4). While previously considered to be immune modulators, overexpression of neutrophil serine proteases correlates with various disease conditions. Therefore, identifying novel small molecules that can potentially control or inhibit the proteolytic activity of these proteases is crucial to revert or temper the aggravated disease phenotype. To the best of our knowledge, although there is limited data for inhibitors of other neutrophil protease members, there is no previous clinical study of a synthetic small molecule inhibitor targeting NSP4. In this study, an integrated molecular modeling algorithm was performed within a virtual drug repurposing study to identify novel inhibitors for NSP4, using clinically approved and investigation drugs library (∼8000 compounds). Based on our rigorous filtration, we found that following molecules Becatecarin, Iogulamide, Delprostenate and Iralukast are predicted to block the activity of NSP4 by interacting with core catalytic residues. The selected ligands were energetically more favorable compared to the reference molecule. The result of this study identifies promising molecules as potential lead candidates.
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Affiliation(s)
- Jamshaid Ahmad
- Center of Biotechnology & Microbiology, University of Peshawar, Pakistan.
| | - Saima Ikram
- Center of Biotechnology & Microbiology, University of Peshawar, Pakistan; Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahcesehir University, Istanbul, Turkey
| | - Ahmer Bin Hafeez
- Center of Biotechnology & Microbiology, University of Peshawar, Pakistan
| | - Serdar Durdagi
- Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahcesehir University, Istanbul, Turkey.
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34
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35
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Chauhan PS, Brettell S, Ramakotaiah M, Diarra S, Nguyen AMT, Wei X, Hamdane Y, Yongo-Luwawa CD, Lubell WD. Hydrazine derivative synthesis by trifluoroacetyl hydrazide alkylation. CAN J CHEM 2020. [DOI: 10.1139/cjc-2020-0052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
N′-Alkyl hydrazides were effectively synthesized by routes featuring installation, alkylation, and removal of a trifluoroacetyl group. A set of amino acid derived hydrazides were acylated using trifluoroacetic anhydride, and the resulting trifluoroacetyl hydrazides were alkylated with alcohols in Mitsunobu reactions and with alkyl halides under alkaline conditions. Removal of the trifluoroacetyl group was affected under reductive and hydrolytic conditions to provide the respective N′-alkyl hydrazides. This three-step process may be performed without isolation of intermediates to yield N′-alkyl hydrazide after a single chromatographic purification.
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Affiliation(s)
- Pradeep S. Chauhan
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Skye Brettell
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Mulamreddy Ramakotaiah
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Sitan Diarra
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Anh Minh Thao Nguyen
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Xiaozheng Wei
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Yousra Hamdane
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - Charity Deborah Yongo-Luwawa
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
| | - William D. Lubell
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
- Département de chimie, Université de Montréal, Montréal, QC H3C 3J7, Canada
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36
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Zhang Y, Yan X, Cao J, Weng P, Miao D, Li Z, Jiang YB. Turn Conformation of β-Amino Acid-Based Short Peptides Promoted by an Amidothiourea Moiety at C-Terminus. J Org Chem 2020; 85:9844-9849. [PMID: 32584574 DOI: 10.1021/acs.joc.0c01139] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A C-terminal amidothiourea motif is shown to promote a β-turn-like folded conformation in a series of β-amino acid-based short peptides in both the solid state and solution phase by an intramolecular 11-membered ring hydrogen bond.
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Affiliation(s)
- Yanhan Zhang
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Xiaosheng Yan
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Jinlian Cao
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Peimin Weng
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Daiyu Miao
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Zhao Li
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
| | - Yun-Bao Jiang
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, and iChEM, Xiamen University, Xiamen 361005, China
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Proulx C, Zhang J, Sabatino D, Chemtob S, Ong H, Lubell WD. Synthesis and Biomedical Potential of Azapeptide Modulators of the Cluster of Differentiation 36 Receptor (CD36). Biomedicines 2020; 8:biomedicines8080241. [PMID: 32717955 PMCID: PMC7459725 DOI: 10.3390/biomedicines8080241] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/15/2020] [Accepted: 07/17/2020] [Indexed: 12/14/2022] Open
Abstract
The innovative development of azapeptide analogues of growth hormone releasing peptide-6 (GHRP-6) has produced selective modulators of the cluster of differentiation 36 receptor (CD36). The azapeptide CD36 modulators curb macrophage-driven inflammation and mitigate atherosclerotic and angiogenic pathology. In macrophages activated with Toll-like receptor-2 heterodimer agonist, they reduced nitric oxide production and proinflammatory cytokine release. In a mouse choroidal explant microvascular sprouting model, they inhibited neovascularization. In murine models of cardiovascular injury, CD36-selective azapeptide modulators exhibited cardioprotective and anti-atherosclerotic effects. In subretinal inflammation models, they altered activated mononuclear phagocyte metabolism and decreased immune responses to alleviate subsequent inflammation-dependent neuronal injury associated with retinitis pigmentosa, diabetic retinopathy and age-related macular degeneration. The translation of GHRP-6 to potent and selective linear and cyclic azapeptide modulators of CD36 is outlined in this review which highlights the relevance of turn geometry for activity and the biomedical potential of prototypes for the beneficial treatment of a wide range of cardiovascular, metabolic and immunological disorders.
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Affiliation(s)
- Caroline Proulx
- Department of Chemistry, North Carolina State University, Raleigh, NC 27695, USA;
| | - Jinqiang Zhang
- Innovative Drug Research Centre, Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China;
| | - David Sabatino
- Department of Chemistry and Biochemistry, Seton Hall University, 400 South Orange Ave, South Orange, NJ 07079, USA;
| | - Sylvain Chemtob
- Département d’Ophtalmologie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, QC H3C3J7, Canada;
| | - Huy Ong
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, QC H3C3J7, Canada;
| | - William D. Lubell
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, QC H3C3J7, Canada
- Correspondence:
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Melton SD, Brackhahn EAE, Orlin SJ, Jin P, Chenoweth DM. Rules for the design of aza-glycine stabilized triple-helical collagen peptides. Chem Sci 2020; 11:10638-10646. [PMID: 34094319 PMCID: PMC8162259 DOI: 10.1039/d0sc03003a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The stability of the triple-helical structure of collagen is modulated by a delicate balance of effects including polypeptide backbone geometry, a buried hydrogen bond network, dispersive interfacial interactions, and subtle stereoelectronic effects. Although the different amino acid propensities for the Xaa and Yaa positions of collagen's repeating (Glycine-Xaa-Yaa) primary structure have been described, our understanding of the impact of incorporating aza-glycine (azGly) residues adjacent to varied Xaa and Yaa position residues has been limited to specific sequences. Here, we detail the impact of variation in the Xaa position adjacent to an azGly residue and compare these results to our study on the impact of the Yaa position. For the first time, we present a set of design rules for azGly-stabilized triple-helical collagen peptides, accounting for all canonical amino acids in the Xaa and Yaa positions adjacent to an azGly residue, and extend these rules using multiple azGly residues. To gain atomic level insight into these new rules we present two high-resolution crystal structures of collagen triple helices, with the first peptoid-containing collagen peptide structure. In conjunction with biophysical and computational data, we highlight the critical importance of preserving the triple helix geometry and protecting the hydrogen bonding network proximal to the azGly residue from solvent. Our results provide a set of design guidelines for azGly-stabilized triple-helical collagen peptides and fundamental insight into collagen structure and stability.
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Affiliation(s)
- Samuel D Melton
- Department of Chemistry, University of Pennsylvania 231 South 34th Street Philadelphia Pennsylvania 19104 USA
| | - Emily A E Brackhahn
- Department of Chemistry, University of Pennsylvania 231 South 34th Street Philadelphia Pennsylvania 19104 USA
| | - Samuel J Orlin
- Department of Chemistry, University of Pennsylvania 231 South 34th Street Philadelphia Pennsylvania 19104 USA
| | - Pengfei Jin
- Department of Chemistry, University of Pennsylvania 231 South 34th Street Philadelphia Pennsylvania 19104 USA
| | - David M Chenoweth
- Department of Chemistry, University of Pennsylvania 231 South 34th Street Philadelphia Pennsylvania 19104 USA
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Frégeau G, Sarduy R, Elimam H, Esposito CL, Mellal K, Ménard L, Leitão da Graça SD, Proulx C, Zhang J, Febbraio M, Soto Y, Lubell WD, Ong H, Marleau S. Atheroprotective and atheroregressive potential of azapeptide derivatives of GHRP-6 as selective CD36 ligands in apolipoprotein E-deficient mice. Atherosclerosis 2020; 307:52-62. [PMID: 32721647 DOI: 10.1016/j.atherosclerosis.2020.06.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 06/08/2020] [Accepted: 06/12/2020] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIMS Scavenger receptor class B member 3, also known as cluster of differentiation-36 (CD36) receptor, is involved in the uptake and accumulation of modified lipoprotein in macrophages, driving atherosclerosis progression. Azapeptide analogs of growth hormone-releasing peptide-6 (GHRP-6) have been developed as selective CD36 ligands and evaluated for their anti-atherosclerotic properties in apoe-/- mice. METHODS From 4 to 19 weeks of age, male apoe-/- mice were fed a high fat high cholesterol (HFHC) diet, then switched to normal chow and treated daily with 300 nmol/kg of MPE-001 ([aza-Tyr4]-GHRP-6) or MPE-003 ([aza-(N,N-diallylaminobut-2-ynyl)Gly4]-GHRP-6) for 9 weeks. In another protocol, mice were fed a HFHC diet throughout the study. RESULTS Azapeptides decreased lesion progression in the aortic arch and reduced aortic sinus lesion areas below pre-existing lesions levels in apoe-/- mice which were switched to chow diet. In mice fed a HFHC throughout the study, azapeptides reduced lesion progression in the aortic vessel and sinus. The anti-atherosclerotic effect of azapeptides was associated with a reduced ratio of iNOS+/CD206+ macrophages within lesions, and lowered plasma inflammatory cytokine levels. Monocytes from azapeptide-treated mice showed altered mitochondrial oxygen consumption rates, consistent with an M2-like phenotype. These effects were dependent on CD36, and not observed in apoe-/-cd36-/- mice. CONCLUSIONS Azapeptides MPE-001 and MPE-003 diminished aortic lesion progression and reduced, below pre-existing levels, lesions in the aortic sinus of atherosclerotic mice. A relative increase of M2-like macrophages was observed in lesions, associated with reduced systemic inflammation. Development of CD36-selective azapeptide ligands merits consideration for treating atherosclerotic disease.
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Affiliation(s)
- Geneviève Frégeau
- Faculty of Pharmacy, Université de Montréal, Montréal, Québec, Canada
| | - Roger Sarduy
- Faculty of Pharmacy, Université de Montréal, Montréal, Québec, Canada
| | - Hanan Elimam
- Faculty of Pharmacy, Université de Montréal, Montréal, Québec, Canada; Department of Biochemistry, Faculty of Pharmacy, University of Sadat City, Sadat City, Egypt
| | - Cloé L Esposito
- Faculty of Pharmacy, Université de Montréal, Montréal, Québec, Canada
| | - Katia Mellal
- Faculty of Pharmacy, Université de Montréal, Montréal, Québec, Canada
| | - Liliane Ménard
- Faculty of Pharmacy, Université de Montréal, Montréal, Québec, Canada
| | | | - Caroline Proulx
- Department of Chemistry, Université de Montréal, Montréal, Québec, Canada
| | - Jinqiang Zhang
- Department of Chemistry, Université de Montréal, Montréal, Québec, Canada
| | - Maria Febbraio
- Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Yosdel Soto
- Faculty of Pharmacy, Université de Montréal, Montréal, Québec, Canada
| | - William D Lubell
- Department of Chemistry, Université de Montréal, Montréal, Québec, Canada
| | - Huy Ong
- Faculty of Pharmacy, Université de Montréal, Montréal, Québec, Canada
| | - Sylvie Marleau
- Faculty of Pharmacy, Université de Montréal, Montréal, Québec, Canada.
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Poupart J, Hamdane Y, Lubell WD. Synthesis of enantiomerically enriched 4,5-disubstituted N-aminoimidazol-2-one (Nai) peptide turn mimics. CAN J CHEM 2020. [DOI: 10.1139/cjc-2019-0479] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
N-Aminoimidazolone (Nai) peptide mimics were synthesized with minimal epimerization by base-promoted 5-endo-dig cyclization of aza-propargylglycine dipeptide acids and hydrazides followed by olefin migration. 5-Position functionalization using Mannich amino methylation and Vilsmeier–Haack formylation has given access to a set of restrained side chain analogs of Asp, Dab, and Hse residues for mimicry of turn form and function.
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Affiliation(s)
- Julien Poupart
- Département de Chimie, Université de Montréal, Succursale Centre-Ville, Montréal, QC H3C3J7, Canada
- Département de Chimie, Université de Montréal, Succursale Centre-Ville, Montréal, QC H3C3J7, Canada
| | - Yousra Hamdane
- Département de Chimie, Université de Montréal, Succursale Centre-Ville, Montréal, QC H3C3J7, Canada
- Département de Chimie, Université de Montréal, Succursale Centre-Ville, Montréal, QC H3C3J7, Canada
| | - William D. Lubell
- Département de Chimie, Université de Montréal, Succursale Centre-Ville, Montréal, QC H3C3J7, Canada
- Département de Chimie, Université de Montréal, Succursale Centre-Ville, Montréal, QC H3C3J7, Canada
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Shah SS, Casanova N, Antuono G, Sabatino D. Polyamide Backbone Modified Cell Targeting and Penetrating Peptides in Cancer Detection and Treatment. Front Chem 2020; 8:218. [PMID: 32296681 PMCID: PMC7136562 DOI: 10.3389/fchem.2020.00218] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 03/09/2020] [Indexed: 12/15/2022] Open
Abstract
Cell penetrating and targeting peptides (CPPs and CTPs) encompass an important class of biochemically active peptides owning the capabilities of targeting and translocating within selected cell types. As such, they have been widely used in the delivery of imaging and therapeutic agents for the diagnosis and treatment of various diseases, especially in cancer. Despite their potential utility, first generation CTPs and CPPs based on the native peptide sequences are limited by poor biological and pharmacological properties, thereby restricting their efficacy. Therefore, medicinal chemistry approaches have been designed and developed to construct related peptidomimetics. Of specific interest herein, are the design applications which modify the polyamide backbone of lead CTPs and CPPs. These modifications aim to improve the biochemical characteristics of the native peptide sequence in order to enhance its diagnostic and therapeutic capabilities. This review will focus on a selected set of cell penetrating and targeting peptides and their related peptidomimetics whose polyamide backbone has been modified in order to improve their applications in cancer detection and treatment.
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Affiliation(s)
- Sunil S Shah
- Department of Chemistry and Biochemistry, Seton Hall University, South Orange, NJ, United States
| | - Nelson Casanova
- Department of Chemistry and Biochemistry, Seton Hall University, South Orange, NJ, United States
| | - Gina Antuono
- Department of Chemistry and Biochemistry, Seton Hall University, South Orange, NJ, United States
| | - David Sabatino
- Department of Chemistry and Biochemistry, Seton Hall University, South Orange, NJ, United States
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Zhou M, Qian Y, Xie J, Zhang W, Jiang W, Xiao X, Chen S, Dai C, Cong Z, Ji Z, Shao N, Liu L, Wu Y, Liu R. Poly(2‐Oxazoline)‐Based Functional Peptide Mimics: Eradicating MRSA Infections and Persisters while Alleviating Antimicrobial Resistance. Angew Chem Int Ed Engl 2020; 59:6412-6419. [DOI: 10.1002/anie.202000505] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Indexed: 01/04/2023]
Affiliation(s)
- Min Zhou
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Yuxin Qian
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Jiayang Xie
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Wenjing Zhang
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Weinan Jiang
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Ximian Xiao
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Sheng Chen
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Chengzhi Dai
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Zihao Cong
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Zhemin Ji
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Ning Shao
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Longqiang Liu
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Yuequn Wu
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Runhui Liu
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
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Zhou M, Qian Y, Xie J, Zhang W, Jiang W, Xiao X, Chen S, Dai C, Cong Z, Ji Z, Shao N, Liu L, Wu Y, Liu R. Poly(2‐Oxazoline)‐Based Functional Peptide Mimics: Eradicating MRSA Infections and Persisters while Alleviating Antimicrobial Resistance. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000505] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Min Zhou
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Yuxin Qian
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Jiayang Xie
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Wenjing Zhang
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Weinan Jiang
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Ximian Xiao
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Sheng Chen
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Chengzhi Dai
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Zihao Cong
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Zhemin Ji
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Ning Shao
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Longqiang Liu
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Yuequn Wu
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
| | - Runhui Liu
- State Key Laboratory of Bioreactor EngineeringKey Laboratory for Ultrafine Materials of Ministry of EducationResearch Center for Biomedical Materials of Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Shanghai 200237 China
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Tonali N, Correia I, Lesma J, Bernadat G, Ongeri S, Lequin O. Introducing sequential aza-amino acids units induces repeated β-turns and helical conformations in peptides. Org Biomol Chem 2020; 18:3452-3458. [PMID: 32091060 DOI: 10.1039/c9ob02654a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A major current issue in medicinal chemistry is the design of small peptide analogues resistant to proteolysis and able to adopt preferential conformations, while preserving the selectivity and efficiency of natural peptides. Whereas the introduction of one aza-Gly in peptides has proven numerous biological and structural interest, the conformational effect of sequential aza-Gly or aza-amino acids bearing side chains has not been investigated. In this work, experimental NMR and X-ray data together with in silico conformational studies reveal that the introduction of two consecutive aza-amino acids in pseudotripeptides induces the formation of stable hydrogen-bonded β-turn structures. Notably, this stabilization effect relies on the presence of side chains on aza-amino acids, as more flexible conformations are observed with aza-Gly residues. Remarkably, a longer aza/aza/α/aza/aza/α pseudohexapeptide containing substituted aza-amino acids adopts repeated β-turns conformations which interconvert with a fully helical structure mimicking a 310 helix.
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Affiliation(s)
- Nicolo Tonali
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France.
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Sang P, Shi Y, Lu J, Chen L, Yang L, Borcherds W, Abdulkadir S, Li Q, Daughdrill G, Chen J, Cai J. α-Helix-Mimicking Sulfono-γ-AApeptide Inhibitors for p53-MDM2/MDMX Protein-Protein Interactions. J Med Chem 2020; 63:975-986. [PMID: 31971801 PMCID: PMC7025332 DOI: 10.1021/acs.jmedchem.9b00993] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The use of peptidomimetic scaffolds is a promising strategy for the inhibition of protein-protein interactions (PPIs). Herein, we demonstrate that sulfono-γ-AApeptides can be rationally designed to mimic the p53 α-helix and inhibit p53-MDM2 PPIs. The best inhibitor, with Kd and IC50 values of 26 nM and 0.891 μM toward MDM2, respectively, is among the most potent unnatural peptidomimetic inhibitors disrupting the p53-MDM2/MDMX interaction. Using fluorescence polarization assays, circular dichroism, nuclear magnetic resonance spectroscopy, and computational simulations, we demonstrate that sulfono-γ-AApeptides adopt helical structures resembling p53 and competitively inhibit the p53-MDM2 interaction by binding to the hydrophobic cleft of MDM2. Intriguingly, the stapled sulfono-γ-AApeptides showed promising cellular activity by enhancing p53 transcriptional activity and inducing expression of MDM2 and p21. Moreover, sulfono-γ-AApeptides exhibited remarkable resistance to proteolysis, augmenting their biological potential. Our results suggest that sulfono-γ-AApeptides are a new class of unnatural helical foldamers that disrupt PPIs.
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Affiliation(s)
- Peng Sang
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , United States
| | - Yan Shi
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , United States
| | - Junhao Lu
- Department of Molecular Oncology , H. Lee Moffitt Cancer Center and Research Institute , 12902 Magnolia Drive , Tampa , Florida 33612 , United States
| | - Lihong Chen
- Department of Molecular Oncology , H. Lee Moffitt Cancer Center and Research Institute , 12902 Magnolia Drive , Tampa , Florida 33612 , United States
| | - Leixiang Yang
- Department of Molecular Oncology , H. Lee Moffitt Cancer Center and Research Institute , 12902 Magnolia Drive , Tampa , Florida 33612 , United States
| | - Wade Borcherds
- Department of Cell Biology, Microbiology and Molecular Biology , University of South Florida , Tampa , Florida 33620 , United States
| | - Sami Abdulkadir
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , United States
| | - Qi Li
- Department of Medical Oncology , Shuguang Hospital, Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
| | - Gary Daughdrill
- Department of Cell Biology, Microbiology and Molecular Biology , University of South Florida , Tampa , Florida 33620 , United States
| | - Jiandong Chen
- Department of Molecular Oncology , H. Lee Moffitt Cancer Center and Research Institute , 12902 Magnolia Drive , Tampa , Florida 33612 , United States
| | - Jianfeng Cai
- Department of Chemistry , University of South Florida , 4202 E. Fowler Avenue , Tampa , Florida 33620 , United States
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Sohbati H, Alipour M, Hosseinkhani S, Balalaie S, Hamdan F. Design, Synthesis and Biological Evaluation of Triptorelin Analogs Containing Tetrazole Moiety. ChemistrySelect 2020. [DOI: 10.1002/slct.201903722] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Hamidreza Sohbati
- Peptide Chemistry Research CenterK. N. Toosi University of Technology P. O. Box 15875–4416 Tehran Iran
| | - Mohsen Alipour
- Department of Advanced Medical Sciences & Technologies, School of MedicineJahrom, University of Medical Sciences, Jahrom Iran
| | - Saman Hosseinkhani
- Department of Nano Biotechnology, Faculty of Biological SciencesTarbiat Modares University, Tehran Iran
| | - Saeed Balalaie
- Peptide Chemistry Research CenterK. N. Toosi University of Technology P. O. Box 15875–4416 Tehran Iran
- e Medical Biology Research CenterKermanshah University of Medical Sciences, Kermanshah Iran
| | - Fatima Hamdan
- Peptide Chemistry Research CenterK. N. Toosi University of Technology P. O. Box 15875–4416 Tehran Iran
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Reese HR, Shanahan CC, Proulx C, Menegatti S. Peptide science: A "rule model" for new generations of peptidomimetics. Acta Biomater 2020; 102:35-74. [PMID: 31698048 DOI: 10.1016/j.actbio.2019.10.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 10/17/2019] [Accepted: 10/30/2019] [Indexed: 02/07/2023]
Abstract
Peptides have been heavily investigated for their biocompatible and bioactive properties. Though a wide array of functionalities can be introduced by varying the amino acid sequence or by structural constraints, properties such as proteolytic stability, catalytic activity, and phase behavior in solution are difficult or impossible to impart upon naturally occurring α-L-peptides. To this end, sequence-controlled peptidomimetics exhibit new folds, morphologies, and chemical modifications that create new structures and functions. The study of these new classes of polymers, especially α-peptoids, has been highly influenced by the analysis, computational, and design techniques developed for peptides. This review examines techniques to determine primary, secondary, and tertiary structure of peptides, and how they have been adapted to investigate peptoid structure. Computational models developed for peptides have been modified to predict the morphologies of peptoids and have increased in accuracy in recent years. The combination of in vitro and in silico techniques have led to secondary and tertiary structure design principles that mirror those for peptides. We then examine several important developments in peptoid applications inspired by peptides such as pharmaceuticals, catalysis, and protein-binding. A brief survey of alternative backbone structures and research investigating these peptidomimetics shows how the advancement of peptide and peptoid science has influenced the growth of numerous fields of study. As peptide, peptoid, and other peptidomimetic studies continue to advance, we will expect to see higher throughput structural analyses, greater computational accuracy and functionality, and wider application space that can improve human health, solve environmental challenges, and meet industrial needs. STATEMENT OF SIGNIFICANCE: Many historical, chemical, and functional relations draw a thread connecting peptides to their recent cognates, the "peptidomimetics". This review presents a comprehensive survey of this field by highlighting the width and relevance of these familial connections. In the first section, we examine the experimental and computational techniques originally developed for peptides and their morphing into a broader analytical and predictive toolbox. The second section presents an excursus of the structures and properties of prominent peptidomimetics, and how the expansion of the chemical and structural diversity has returned new exciting properties. The third section presents an overview of technological applications and new families of peptidomimetics. As the field grows, new compounds emerge with clear potential in medicine and advanced manufacturing.
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Danelius E, Ohm RG, Ahsanullah, Mulumba M, Ong H, Chemtob S, Erdelyi M, Lubell WD. Dynamic Chirality in the Mechanism of Action of Allosteric CD36 Modulators of Macrophage-Driven Inflammation. J Med Chem 2019; 62:11071-11079. [DOI: 10.1021/acs.jmedchem.9b00918] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Emma Danelius
- Department of Pediatrics, Centre Hospitalier Universitaire (CHU) Sainte—Justine Research Center, Montréal H3T 1C5, Québec, Canada
| | | | | | | | | | - Sylvain Chemtob
- Department of Pediatrics, Centre Hospitalier Universitaire (CHU) Sainte—Justine Research Center, Montréal H3T 1C5, Québec, Canada
| | - Mate Erdelyi
- Department of Chemistry—BMC, Uppsala University, Husargatan 3, Uppsala SE-752 37, Sweden
- The Swedish NMR Centre, Medicinaregatan 5, Gothenburg SE-413 90, Sweden
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Melton SD, Smith MS, Chenoweth DM. Incorporation of Aza-Glycine into Collagen Peptides. J Org Chem 2019; 85:1706-1711. [DOI: 10.1021/acs.joc.9b02539] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Samuel D. Melton
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Mason S. Smith
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - David M. Chenoweth
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
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Fesenko AA, Yankov AN, Shutalev AD. A general and convenient synthesis of 4-(tosylmethyl)semicarbazones and their use in amidoalkylation of hydrogen, heteroatom, and carbon nucleophiles. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130527] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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