1
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Nazeer N, Kooner N, Ghimire A, Rainey JK, Lubell WD, Meneksedag-Erol D, Ahmed M. Secondary Structure Stabilization of Macrocyclic Antimicrobial Peptides via Cross-Link Swapping. J Med Chem 2024; 67:8693-8707. [PMID: 38771638 DOI: 10.1021/acs.jmedchem.4c00005] [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: 05/23/2024]
Abstract
Lactam cross-links have been employed to stabilize the helical secondary structure and enhance the activity and physiological stability of antimicrobial peptides; however, stabilization of β-sheets via lactamization has not been observed. In the present study, lactams between the side chains of C- and N-terminal residues have been used to stabilize the β-sheet conformation in a short ten-residue analogue of chicken angiogenin-4. Designed using a combination of molecular dynamics simulations and Markov state models, the lactam cross-linked peptides are shown to adopt stabilized β-sheet conformations consistent with simulated structures. Replacement of the peptide side-chain Cys-Cys disulfide by a lactam cross-link enhanced the broad-spectrum antibacterial activity compared to the parent peptide and exhibited greater propensity to induce proinflammatory activity in macrophages. The combination of molecular simulations and conformational and biological analyses of the synthetic peptides provides a useful paradigm for the rational design of therapeutically active peptides with constrained β-sheet structures.
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Affiliation(s)
- Nauman Nazeer
- Department of Chemistry, University of Prince Edward Island, Charlottetown C1A 4P3, Prince Edward Island, Canada
| | - Navjote Kooner
- Department of Chemistry and Biochemistry, Concordia University, Montreal H4B 1R6, Quebec, Canada
| | - Anupama Ghimire
- Department of Biochemistry & Molecular Biology, Dalhousie University, Halifax B3H 4R2, Nova Scotia, Canada
| | - Jan K Rainey
- Department of Biochemistry & Molecular Biology, Dalhousie University, Halifax B3H 4R2, Nova Scotia, Canada
- Department of Chemistry, Dalhousie University, Halifax B3H 4R2, Nova Scotia, Canada
- School of Biomedical Engineering, Dalhousie University, Halifax B3H 4R2, Nova Scotia, Canada
| | - William D Lubell
- Département de Chimie, Université de Montréal, 1375 Ave. Thérèse-Lavoie-Roux, Montréal H2 V 0B3, Québec, Canada
| | - Deniz Meneksedag-Erol
- Department of Chemistry and Biochemistry, Concordia University, Montreal H4B 1R6, Quebec, Canada
- Department of Chemical and Materials Engineering, Concordia University, Montreal H4B 1R6, Quebec, Canada
| | - Marya Ahmed
- Department of Chemistry, University of Prince Edward Island, Charlottetown C1A 4P3, Prince Edward Island, Canada
- Faculty of Sustainable Design Engineering, University of Prince Edward Island, Charlottetown C1A 4P3, Prince Edward Island, Canada
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2
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Yamada A, Takei T, Kawakami T, Taniguchi Y, Sekiguchi K, Hojo H. Application of cysteinyl prolyl ester for the synthesis of cyclic peptides containing an RGD sequence and their biological activity measurement. Front Chem 2024; 12:1391678. [PMID: 38873405 PMCID: PMC11169864 DOI: 10.3389/fchem.2024.1391678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/01/2024] [Indexed: 06/15/2024] Open
Abstract
Cysteinyl RGD-peptidyl cysteinyl prolyl esters, which have different configurations at the cysteine and proline residues, were synthesized by the solid-phase method and cyclized by the native chemical ligation reaction. Cyclization efficiently proceeded to give cyclic peptides, regardless of the difference in the configuration. The peptides were further derivatized to the corresponding desulfurized or methylated cyclic peptides at the Cys residues. The inhibition activity to αvβ6 integrin binding was then analyzed by ELISA. The results showed that the activity varied depending on the difference in the configuration and modification of the cysteinyl prolyl ester (CPC) moiety, demonstrating the usefulness of this method in the search for a good inhibitor of the protein-protein interaction.
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Affiliation(s)
| | | | | | | | | | - Hironobu Hojo
- Institute for Protein Research, Osaka University, Suita, Osaka, Japan
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3
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Alamdari-Palangi V, Jaberi KR, Shahverdi M, Naeimzadeh Y, Tajbakhsh A, Khajeh S, Razban V, Fallahi J. Recent advances and applications of peptide-agent conjugates for targeting tumor cells. J Cancer Res Clin Oncol 2023; 149:15249-15273. [PMID: 37581648 DOI: 10.1007/s00432-023-05144-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 07/08/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND Cancer, being a complex disease, presents a major challenge for the scientific and medical communities. Peptide therapeutics have played a significant role in different medical practices, including cancer treatment. METHOD This review provides an overview of the current situation and potential development prospects of anticancer peptides (ACPs), with a particular focus on peptide vaccines and peptide-drug conjugates for cancer treatment. RESULTS ACPs can be used directly as cytotoxic agents (molecularly targeted peptides) or can act as carriers (guiding missile) of chemotherapeutic agents and radionuclides by specifically targeting cancer cells. More than 60 natural and synthetic cationic peptides are approved in the USA and other major markets for the treatment of cancer and other diseases. Compared to traditional cancer treatments, peptides exhibit anticancer activity with high specificity and the ability to rapidly kill target cancer cells. ACP's target and kill cancer cells via different mechanisms, including membrane disruption, pore formation, induction of apoptosis, necrosis, autophagy, and regulation of the immune system. Modified peptides have been developed as carriers for drugs, vaccines, and peptide-drug conjugates, which have been evaluated in various phases of clinical trials for the treatment of different types of solid and leukemia cancer. CONCLUSIONS This review highlights the potential of ACPs as a promising therapeutic option for cancer treatment, particularly through the use of peptide vaccines and peptide-drug conjugates. Despite the limitations of peptides, such as poor metabolic stability and low bioavailability, modified peptides show promise in addressing these challenges. Various mechanism of action of anticancer peptides. Modes of action against cancer cells including: inducing apoptosis by cytochrome c release, direct cell membrane lysis (necrosis), inhibiting angiogenesis, inducing autophagy-mediated cell death and immune cell regulation.
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Affiliation(s)
- Vahab Alamdari-Palangi
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, 7133654361, Iran
| | - Khojaste Rahimi Jaberi
- Department of Neuroscience, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahshid Shahverdi
- Medical Biotechnology Research Center, Arak University of Medical Sciences, Arak, Iran
| | - Yasaman Naeimzadeh
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, 7133654361, Iran
| | - Amir Tajbakhsh
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, 7133654361, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sahar Khajeh
- Bone and Joint Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Vahid Razban
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, 7133654361, Iran.
| | - Jafar Fallahi
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, 7133654361, Iran.
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4
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Anselmi M, Baiula M, Spampinato S, Artali R, He T, Gentilucci L. Design and Pharmacological Characterization of α 4β 1 Integrin Cyclopeptide Agonists: Computational Investigation of Ligand Determinants for Agonism versus Antagonism. J Med Chem 2023; 66:5021-5040. [PMID: 36976921 PMCID: PMC10108353 DOI: 10.1021/acs.jmedchem.2c02098] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
α4β1 integrin is a cell adhesion receptor deeply involved in the migration and accumulation of leukocytes. Therefore, integrin antagonists that inhibit leukocytes recruitment are currently regarded as a therapeutic opportunity for the treatment of inflammatory disorder, including leukocyte-related autoimmune diseases. Recently, it has been suggested that integrin agonists capable to prevent the release of adherent leukocytes might serve as therapeutic agents as well. However, very few α4β1 integrin agonists have been discovered so far, thus precluding the investigation of their potential therapeutic efficacy. In this perspective, we synthesized cyclopeptides containing the LDV recognition motif found in the native ligand fibronectin. This approach led to the discovery of potent agonists capable to increase the adhesion of α4 integrin-expressing cells. Conformational and quantum mechanics computations predicted distinct ligand-receptor interactions for antagonists or agonists, plausibly referable to receptor inhibition or activation.
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Affiliation(s)
- Michele Anselmi
- Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Monica Baiula
- Department of Pharmacy and Biotechnology, University of Bologna, Via Irnerio 48, 40126, Bologna, Italy
| | - Santi Spampinato
- Department of Pharmacy and Biotechnology, University of Bologna, Via Irnerio 48, 40126, Bologna, Italy
| | | | - Tingting He
- Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Luca Gentilucci
- Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
- Health Sciences & Technologies (HST) CIRI, University of Bologna, Via Tolara di Sopra 41/E, 40064 Ozzano Emilia, Italy
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5
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Noguchi Y, Sekikawa S, Nogaki Y, Satake Y, Murashima N, Kirisawa T, Schiffer G, Köebberling J, Hirose T, Sunazuka T. Pot-economical synthesis of cyclic depsipeptides using a hydrophobic anchor molecule toward the construction of an unnatural peptide library. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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6
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Yang Y, Hansen L. Regioisomer Formation with Agmatine Guanidino Group, Its Implications for Agmatine Peptide Cyclization, and Application of Bis-Boc-Agmatine. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yi Yang
- Chemical Development, Global Pharmaceutical R&D, Ferring Pharmaceuticals A/S, Amager Strandvej 405, Kastrup 2770, Denmark
| | - Lena Hansen
- Chemical Development, Global Pharmaceutical R&D, Ferring Pharmaceuticals A/S, Amager Strandvej 405, Kastrup 2770, Denmark
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7
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Paulus J, Sewald N. Synthesis and Evaluation of a Non-Peptide Small-Molecule Drug Conjugate Targeting Integrin αVβ3. Front Chem 2022; 10:869639. [PMID: 35480387 PMCID: PMC9035832 DOI: 10.3389/fchem.2022.869639] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 02/28/2022] [Indexed: 01/16/2023] Open
Abstract
An integrin αVβ3-targeting linear RGD mimetic containing a small-molecule drug conjugate (SMDC) was synthesized by combining the antimitotic agent monomethyl auristatin E (MMAE), an enzymatically cleavable Val-Ala-PABC linker with a linear conjugable RGD mimetic. The structure proposal for the conjugable RGD mimetic was suggested upon the DAD mapping analysis of a previously synthesized small-molecule RGD mimetic array based on a tyrosine scaffold. Therefore, a diversifying strategy was developed as well as a novel method for the partial hydrogenation of pyrimidines in the presence of the hydrogenolytically cleavable Cbz group. The small-molecule RGD mimetics were evaluated in an ELISA-like assay, and the structural relationships were analyzed by DAD mapping revealing activity differences induced by structural changes as visualized in dependence on special structural motifs. This provided a lead structure for generation of an SMDC containing the antimitotic drug MMAE. The resulting SMDC containing a linear RGD mimetic was tested in a cell adhesion and an in vitro cell viability assay in comparison to reference SMDCs containing cRGDfK or cRADfK as the homing device. The linear RGD SMDC and the cRGDfK SMDC inhibited adhesion of αVβ3-positive WM115 cells to vitronectin with IC50 values in the low µM range, while no effect was observed for the αVβ3-negative M21-L cell line. The cRADfK SMDC used as a negative control was about 30-fold less active in the cell adhesion assay than the cRGDfK SMDC. Conversely, both the linear RGD SMDC and the cRGDfK SMDC are about 55-fold less cytotoxic than MMAE against the αVβ3-positive WM115 cell line with IC50 values in the nM range, while the cRADfK SMDC is 150-fold less cytotoxic than MMAE. Hence, integrin binding also influences the antiproliferative activity giving a targeting index of 2.8.
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8
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Kanwal I, Mushtaq F, Ali H, Tufail P, Jahan H, Shaheen F. First report on the synthesis and structural studies of trans-Phakellistatin 18: a rotamer of marine natural product phakellistatin 18. Nat Prod Res 2022; 37:1470-1479. [PMID: 34986732 DOI: 10.1080/14786419.2021.2023141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Phakellistatin peptides from marine organisms are the sources of proline-rich cyclic peptides with reported significant antitumor activities. Phakellistatin 18 (1), reported from marine sponge Phakellia fusca, contains three proline-peptide linkages in cis form. We attempted the total synthesis of natural product 1 through solution-phase macrocyclization approach, as a result, the synthetic cyclic peptide 2 was obtained as a rotamer of natural product having all three proline residues in trans-conformation. Here, we describe the synthesis, structural, and cytotoxicity studies of trans-Phakellistatin 18 (2), and its analog [Ala1,3,6]-Phakellistatin 18 (3). Detailed NMR studies were carried out to characterize the synthesized peptides, and anti-cancer screening was performed by using MTT assay. The synthetic trans-Phakellistatin 18 (2) (IC50=67.5 ± 2.938 µM) showed comparable cytotoxicity against HepG2 cancer cell line with standard drug doxorubicin (IC50=63.88 ± 6.48 µM). Here, the first synthetic and structural studies on trans-Phakellistatin 18 (2), and its anticancer screening against HepG2 cell line was reported.
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Affiliation(s)
- Iqra Kanwal
- Third World Center for Science and Technology, H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Farkhanda Mushtaq
- Third World Center for Science and Technology, H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Hunain Ali
- Third World Center for Science and Technology, H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Priya Tufail
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Humera Jahan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Farzana Shaheen
- Third World Center for Science and Technology, H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
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9
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Brewster RC, Labeaga IC, Soden CE, Jarvis AG. Macrocylases as synthetic tools for ligand synthesis: enzymatic synthesis of cyclic peptides containing metal-binding amino acids. ROYAL SOCIETY OPEN SCIENCE 2021; 8:211098. [PMID: 34737880 PMCID: PMC8564625 DOI: 10.1098/rsos.211098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
Improving the sustainability of synthesis is a major goal in green chemistry, which has been greatly aided by the development of asymmetric transition metal catalysis. Recent advances in asymmetric catalysis show that the ability to control the coordination sphere of substrates can lead to improvements in enantioselectivity and activity, in a manner resembling the operation of enzymes. Peptides can be used to mimic enzyme structures and their secondary interactions and they are easily accessible through solid-phase peptide synthesis. Despite this, cyclic peptides remain underexplored as chiral ligands for catalysis due to synthetic complications upon macrocyclization. Here, we show that the solid-phase synthesis of peptides containing metal-binding amino acids, bipyridylalanine (1), phenyl pyridylalanine (2) and N,N-dimethylhistidine (3) can be combined with peptide macrocylization using peptide cyclase 1 (PCY1) to yield cyclic peptides under mild conditions. High conversions of the linear peptides were observed (approx. 90%) and the Cu-bound cyclo(FSAS(1)SSKP) was shown to be a competent catalyst in the Friedel-Crafts/conjugate addition of indole. This study shows that PCY1 can tolerate peptides containing amino acids with classic inorganic and organometallic ligands as side chains, opening the door to the streamlined and efficient development of cyclic peptides as metal ligands.
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Affiliation(s)
- Richard C. Brewster
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Rd, Edinburgh EH9 3FJ, Scotland
| | - Irati Colmenero Labeaga
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Rd, Edinburgh EH9 3FJ, Scotland
| | - Catriona E. Soden
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Rd, Edinburgh EH9 3FJ, Scotland
| | - Amanda G. Jarvis
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Rd, Edinburgh EH9 3FJ, Scotland
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10
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Darcel L, Das S, Bonnard I, Banaigs B, Inguimbert N. Thirtieth Anniversary of the Discovery of Laxaphycins. Intriguing Peptides Keeping a Part of Their Mystery. Mar Drugs 2021; 19:md19090473. [PMID: 34564135 PMCID: PMC8471579 DOI: 10.3390/md19090473] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/16/2021] [Accepted: 08/20/2021] [Indexed: 12/27/2022] Open
Abstract
Lipopeptides are a class of compounds generally produced by microorganisms through hybrid biosynthetic pathways involving non-ribosomal peptide synthase and a polyketyl synthase. Cyanobacterial-produced laxaphycins are examples of this family of compounds that have expanded over the past three decades. These compounds benefit from technological advances helping in their synthesis and characterization, as well as in deciphering their biosynthesis. The present article attempts to summarize most of the articles that have been published on laxaphycins. The current knowledge on the ecological role of these complex sets of compounds will also be examined.
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11
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Kemker I, Schröder DC, Feiner RC, Müller KM, Marion A, Sewald N. Tuning the Biological Activity of RGD Peptides with Halotryptophans†. J Med Chem 2020; 64:586-601. [PMID: 33356253 DOI: 10.1021/acs.jmedchem.0c01536] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An array of l- and d-halotryptophans with different substituents at the indole moiety was synthesized employing either enzymatic halogenation by halogenases or incorporation of haloindoles using tryptophan synthase. Introduction of these Trp derivatives into RGD peptides as a benchmark system was performed to investigate their influence on bioactivity. Halotryptophan-containing RGD peptides display increased affinity toward integrin αvβ3 and enhanced selectivity over integrin α5β1. In addition, bromotryptophan was exploited as a platform for late-stage diversification by Suzuki-Miyaura cross-coupling (SMC), resulting in new-to-nature biaryl motifs. These peptides show enhanced affinity toward αvβ3, good affinity to αvβ8, and remarkable selectivity over α5β1 and αIIbβ3 while featuring fluorogenic properties. Their feasibility as a probe was demonstrated in vitro. Extensive molecular dynamics simulations were undertaken to elucidate NMR and high-performance liquid chromatography (HPLC) data for these late-stage diversified cyclic RGD peptides and to further characterize their conformational preferences.
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Affiliation(s)
- Isabell Kemker
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - David C Schröder
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Rebecca C Feiner
- Cellular and Molecular Biotechnology, Faculty of Technology, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Kristian M Müller
- Cellular and Molecular Biotechnology, Faculty of Technology, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Antoine Marion
- Department of Chemistry, Middle East Technical University, Kimya Bölümü Üniversiteler Mah., Çankaya, 06800 Ankara, Turkey
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615 Bielefeld, Germany.,Department of Chemistry, Middle East Technical University, Kimya Bölümü Üniversiteler Mah., Çankaya, 06800 Ankara, Turkey
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12
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Panzeri S, Arosio D, Gazzola S, Belvisi L, Civera M, Potenza D, Vasile F, Kemker I, Ertl T, Sewald N, Reiser O, Piarulli U. Cyclic RGD and isoDGR Integrin Ligands Containing cis-2-amino-1-cyclopentanecarboxylic ( cis-β-ACPC) Scaffolds. Molecules 2020; 25:molecules25245966. [PMID: 33339382 PMCID: PMC7766232 DOI: 10.3390/molecules25245966] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 12/08/2020] [Accepted: 12/14/2020] [Indexed: 02/06/2023] Open
Abstract
Integrin ligands containing the tripeptide sequences Arg-Gly-Asp (RGD) and iso-Asp-Gly- Arg (isoDGR) were actively investigated as inhibitors of tumor angiogenesis and directing unit in tumor-targeting drug conjugates. Reported herein is the synthesis, of two RGD and one isoDGR cyclic peptidomimetics containing (1S,2R) and (1R,2S) cis-2-amino-1-cyclopentanecarboxylic acid (cis-β-ACPC), using a mixed solid phase/solution phase synthetic protocol. The three ligands were examined in vitro in competitive binding assays to the purified αvβ3 and α5β1 receptors using biotinylated vitronectin (αvβ3) and fibronectin (α5β1) as natural displaced ligands. The IC50 values of the ligands ranged from nanomolar (the two RGD ligands) to micromolar (the isoDGR ligand) with a pronounced selectivity for αvβ3 over α5β1. In vitro cell adhesion assays were also performed using the human skin melanoma cell line WM115 (rich in integrin αvβ3). The two RGD ligands showed IC50 values in the same micromolar range as the reference compound (cyclo[RGDfV]), while for the isoDGR derivative an IC50 value could not be measured for the cell adhesion assay. A conformational analysis of the free RGD and isoDGR ligands by NMR (VT-NMR and NOESY experiments) and computational studies (MC/EM and MD), followed by docking simulations performed in the αVβ3 integrin active site, provided a rationale for the behavior of these ligands toward the receptor.
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Affiliation(s)
- Silvia Panzeri
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (S.P.); (S.G.)
- Institute of Organic Chemistry, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany; (T.E.); (O.R.)
| | - Daniela Arosio
- Consiglio Nazionale delle Ricerche (CNR), Istituto di Scienze e Tecnologie Chimiche (SCITEC), Giulio Natta, Via C. Golgi 19, 20133 Milan, Italy;
| | - Silvia Gazzola
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (S.P.); (S.G.)
| | - Laura Belvisi
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi 19, 20133 Milan, Italy; (L.B.); (M.C.); (D.P.); (F.V.)
| | - Monica Civera
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi 19, 20133 Milan, Italy; (L.B.); (M.C.); (D.P.); (F.V.)
| | - Donatella Potenza
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi 19, 20133 Milan, Italy; (L.B.); (M.C.); (D.P.); (F.V.)
| | - Francesca Vasile
- Dipartimento di Chimica, Università degli Studi di Milano, Via C. Golgi 19, 20133 Milan, Italy; (L.B.); (M.C.); (D.P.); (F.V.)
| | - Isabell Kemker
- Department of Chemistry, Organic and Bioorganic Chemistry, University of Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany; (I.K.); (N.S.)
| | - Thomas Ertl
- Institute of Organic Chemistry, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany; (T.E.); (O.R.)
| | - Norbert Sewald
- Department of Chemistry, Organic and Bioorganic Chemistry, University of Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany; (I.K.); (N.S.)
| | - Oliver Reiser
- Institute of Organic Chemistry, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany; (T.E.); (O.R.)
| | - Umberto Piarulli
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria, Via Valleggio 11, 22100 Como, Italy; (S.P.); (S.G.)
- Correspondence:
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13
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Deptuła M, Karpowicz P, Wardowska A, Sass P, Sosnowski P, Mieczkowska A, Filipowicz N, Dzierżyńska M, Sawicka J, Nowicka E, Langa P, Schumacher A, Cichorek M, Zieliński J, Kondej K, Kasprzykowski F, Czupryn A, Janus Ł, Mucha P, Skowron P, Piotrowski A, Sachadyn P, Rodziewicz-Motowidło S, Pikuła M. Development of a Peptide Derived from Platelet-Derived Growth Factor (PDGF-BB) into a Potential Drug Candidate for the Treatment of Wounds. Adv Wound Care (New Rochelle) 2020; 9:657-675. [PMID: 33124966 PMCID: PMC7698658 DOI: 10.1089/wound.2019.1051] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 09/13/2019] [Indexed: 12/16/2022] Open
Abstract
Objective: This study evaluated the use of novel peptides derived from platelet-derived growth factor (PDGF-BB) as potential wound healing stimulants. One of the compounds (named PDGF2) was subjected for further research after cytotoxicity and proliferation assays on human skin cells. Further investigation included evaluation of: migration and chemotaxis of skin cells, immunological and allergic safety, the transcriptional analyses of adipose-derived stem cells (ASCs) and dermal fibroblasts stimulated with PDGF2, and the use of dorsal skin wound injury model to evaluate the effect of wound healing in mice. Approach: Colorimetric lactate dehydrogenase and tetrazolium assays were used to evaluate the cytotoxicity and the effect on proliferation. PDGF2 effect on migration and chemotaxis was also checked. Immunological safety and allergic potential were evaluated with a lymphocyte activation and basophil activation test. Transcriptional profiles of ASCs and primary fibroblasts were assessed after stimulation with PDGF2. Eight-week-old BALB/c female mice were used for dorsal skin wound injury model. Results: PDGF2 showed low cytotoxicity, pro-proliferative effects on human skin cells, high immunological safety, and accelerated wound healing in mouse model. Furthermore, transcriptomic analysis of ASCs and fibroblasts revealed the activation of processes involved in wound healing and indicated its safety. Innovation: A novel peptide derived from PDGF-BB was proved to be safe drug candidate in wound healing. We also present a multifaceted in vitro model for the initial screening of new compounds that may be potentially useful in wound healing stimulation. Conclusion: The results show that peptide derived from PDGF-BB is a promising drug candidate for wound treatment.
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Affiliation(s)
- Milena Deptuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, Gdansk, Poland
| | - Przemysław Karpowicz
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Anna Wardowska
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, Gdansk, Poland
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | - Piotr Sass
- Laboratory for Regenerative Biotechnology, Gdansk University of Technology, Gdansk, Poland
| | - Paweł Sosnowski
- Laboratory for Regenerative Biotechnology, Gdansk University of Technology, Gdansk, Poland
| | | | | | - Maria Dzierżyńska
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Justyna Sawicka
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Ewa Nowicka
- Department of Clinical Anatomy, Medical University of Gdansk, Gdansk, Poland
| | - Paulina Langa
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
| | | | | | - Jacek Zieliński
- Department of Surgical Oncology, and Medical University of Gdansk, Gdansk, Poland
| | - Karolina Kondej
- Department of Plastic Surgery, Medical University of Gdansk, Gdansk, Poland
| | | | - Artur Czupryn
- Laboratory of Neurobiology, Nencki Institute of Experimental Biology PAS, Warsaw, Poland
| | | | - Piotr Mucha
- Department of Biochemistry, and Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | - Piotr Skowron
- Department of Molecular Biotechnology, Faculty of Chemistry, University of Gdansk, Gdansk, Poland
| | | | - Paweł Sachadyn
- Laboratory for Regenerative Biotechnology, Gdansk University of Technology, Gdansk, Poland
| | | | - Michał Pikuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, Gdansk, Poland
- Department of Clinical Immunology and Transplantology, Medical University of Gdansk, Gdansk, Poland
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14
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Raheem SJ, Schmidt BW, Solomon VR, Salih AK, Price EW. Ultrasonic-Assisted Solid-Phase Peptide Synthesis of DOTA-TATE and DOTA- linker-TATE Derivatives as a Simple and Low-Cost Method for the Facile Synthesis of Chelator-Peptide Conjugates. Bioconjug Chem 2020; 32:1204-1213. [PMID: 32645261 DOI: 10.1021/acs.bioconjchem.0c00325] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Peptides have been widely adopted as biological targeting vectors for applications in molecular imaging and peptide-receptor radionuclide therapy (PRRT). Somatostatin (SST) analogues such as octreotate (TATE) are exogenous ligands for somatostatin receptors (SSTRs), which are highly expressed on neuroendocrine tumors (NETs). Recently, both [68Ga]Ga-DOTA-TATE (NETSPOT) and [177Lu]Lu-DOTA-TATE (LUTATHERA) received U.S. Food and Drug Administration approval for positron emission tomography (PET) imaging and PRRT of NETs, respectively. However, to the best of our knowledge a well-described synthesis of DOTA-TATE has not been reported in the literature. Herein, we report a fully reoptimized DOTA-TATE synthesis, including the application of a simple ultrasonic bath to greatly improve yields, reduce coupling times, and decrease the amount of reagents required for each coupling step by a half. The most prevalently used cyclizing agents such as iodine, thallium(III) trifluoroacetate, hydrogen peroxide, and dimethyl sulfoxide were compared. On-resin cyclizations using mechanical agitation showed higher yields (23% and 25% using I2 and Tl(III), respectively) than off-resin (1.3% and 11% using DMSO and H2O2, respectively), and the total synthesis time of DOTA-TATE was ∼540 min excluding the cyclization step, with a total synthesis yield of ∼23%. The same manual SPPS methods/reagents were reoptimized with ultrasonic (US) agitation, resulting in an immense reduction in the total synthesis time by ∼8-fold to ∼70 min for DOTA-TATE with a higher yield (∼29% yield), and ∼13-fold to 105 min for DOTA-PEG4-TATE (∼29% yield). Also, the use of US agitation reduces the need for excess molar equivalents of the reagents to a half, which is particularly important when coupling expensive or custom-synthesized groups such as bifunctional chelators and linkers. Finally, the synthesized DOTA-TATE was successfully radiolabeled with [68Ga]Ga3+ (t1/2 = 68 min) with high radiochemical yields (30 min, 95 °C). We believe this work opens the door to the facile and low-cost synthesis of many new chelator-linker-peptide conjugates that were previously cumbersome or cost-prohibitive to produce with manual SPPS.
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Affiliation(s)
- Shvan J Raheem
- Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N-5C9, Canada
| | - Benjamin W Schmidt
- Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N-5C9, Canada
| | - Viswas Raja Solomon
- Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N-5C9, Canada
| | - Akam K Salih
- Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N-5C9, Canada
| | - Eric W Price
- Department of Chemistry, University of Saskatchewan, Saskatoon, Saskatchewan S7N-5C9, Canada
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15
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De Marco R, Rampazzo E, Zhao J, Prodi L, Paolillo M, Picchetti P, Gallo F, Calonghi N, Gentilucci L. Integrin-Targeting Dye-Doped PEG-Shell/Silica-Core Nanoparticles Mimicking the Proapoptotic Smac/DIABLO Protein. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1211. [PMID: 32575872 PMCID: PMC7353088 DOI: 10.3390/nano10061211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/14/2020] [Accepted: 06/18/2020] [Indexed: 01/08/2023]
Abstract
Cancer cells demonstrate elevated expression levels of the inhibitor of apoptosis proteins (IAPs), contributing to tumor cell survival, disease progression, chemo-resistance, and poor prognosis. Smac/DIABLO is a mitochondrial protein that promotes apoptosis by neutralizing members of the IAP family. Herein, we describe the preparation and in vitro validation of a synthetic mimic of Smac/DIABLO, based on fluorescent polyethylene glycol (PEG)-coated silica-core nanoparticles (NPs) carrying a Smac/DIABLO-derived pro-apoptotic peptide and a tumor-homing integrin peptide ligand. At low μM concentration, the NPs showed significant toxicity towards A549, U373, and HeLa cancer cells and modest toxicity towards other integrin-expressing cells, correlated with integrin-mediated cell uptake and consequent highly increased levels of apoptotic activity, without perturbing cells not expressing the α5 integrin subunit.
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Affiliation(s)
- Rossella De Marco
- Department of Agricultural, Food, Enviromental and Animal Sciences (DI4A), University of Udine, 33100 Udine, Italy;
| | - Enrico Rampazzo
- Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna, Italy; (E.R.); (J.Z.); (L.P.); (F.G.)
| | - Junwei Zhao
- Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna, Italy; (E.R.); (J.Z.); (L.P.); (F.G.)
| | - Luca Prodi
- Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna, Italy; (E.R.); (J.Z.); (L.P.); (F.G.)
| | - Mayra Paolillo
- Department of Drugs Sciences, University of Pavia, 27100 Pavia, Italy;
| | - Pierre Picchetti
- Institut de Science et d’Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 67083 Strasbourg, France;
| | - Francesca Gallo
- Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna, Italy; (E.R.); (J.Z.); (L.P.); (F.G.)
| | - Natalia Calonghi
- Department of Pharmacy and Biotechnology, University of Bologna, 40126 Bologna, Italy
| | - Luca Gentilucci
- Department of Chemistry “G. Ciamician”, University of Bologna, 40126 Bologna, Italy; (E.R.); (J.Z.); (L.P.); (F.G.)
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16
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Serra G, Posada L, Hojo H. On-resin synthesis of cyclic peptides via tandem N-to-S acyl migration and intramolecular thiol additive-free native chemical ligation. Chem Commun (Camb) 2020; 56:956-959. [DOI: 10.1039/c9cc07783a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel methodology for the synthesis of cyclic peptides by on-resin intramolecular native chemical ligation (NCL) assisted by N-ethylcysteine using Fmoc/SPPS is described.
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Affiliation(s)
- Gloria Serra
- Química Farmacéutica
- Departamento de Química Orgánica
- Facultad de Química
- Universidad de la República
- Montevideo
| | - Laura Posada
- Química Farmacéutica
- Departamento de Química Orgánica
- Facultad de Química
- Universidad de la República
- Montevideo
| | - Hironobu Hojo
- Institute for Protein Research
- Osaka University
- Yamadaoka
- Suita-shi
- Japan
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17
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Darcel L, Djibo M, Gaillard M, Raviglione D, Bonnard I, Banaigs B, Inguimbert N. Trichormamide C Structural Confirmation through Total Synthesis and Extension to Analogs. Org Lett 2019; 22:145-149. [DOI: 10.1021/acs.orglett.9b04064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Laurine Darcel
- PSL Université Paris: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan Via Domitia, 58 avenue Paul Alduy, 66860 Perpignan, France
| | - Mahamadou Djibo
- PSL Université Paris: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan Via Domitia, 58 avenue Paul Alduy, 66860 Perpignan, France
| | - Michel Gaillard
- PSL Université Paris: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan Via Domitia, 58 avenue Paul Alduy, 66860 Perpignan, France
| | - Delphine Raviglione
- PSL Université Paris: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan Via Domitia, 58 avenue Paul Alduy, 66860 Perpignan, France
| | - Isabelle Bonnard
- PSL Université Paris: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan Via Domitia, 58 avenue Paul Alduy, 66860 Perpignan, France
| | - Bernard Banaigs
- PSL Université Paris: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan Via Domitia, 58 avenue Paul Alduy, 66860 Perpignan, France
| | - Nicolas Inguimbert
- PSL Université Paris: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan Via Domitia, 58 avenue Paul Alduy, 66860 Perpignan, France
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18
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Adebomi V, Cohen RD, Wills R, Chavers HAH, Martin GE, Raj M. CyClick Chemistry for the Synthesis of Cyclic Peptides. Angew Chem Int Ed Engl 2019; 58:19073-19080. [DOI: 10.1002/anie.201911900] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Victor Adebomi
- Department of Chemistry and Biochemistry Auburn University Auburn AL 36830 USA
| | - Ryan D. Cohen
- Analytical Research and Development Merck & Co. Inc. Rahway NJ 07065 USA
- Department of Chemistry & Biochemistry Seton Hall University South Orange NJ 07079 USA
| | - Rachel Wills
- Department of Chemistry and Biochemistry Auburn University Auburn AL 36830 USA
| | | | - Gary E. Martin
- Analytical Research and Development Merck & Co. Inc. Rahway NJ 07065 USA
- Department of Chemistry & Biochemistry Seton Hall University South Orange NJ 07079 USA
| | - Monika Raj
- Department of Chemistry and Biochemistry Auburn University Auburn AL 36830 USA
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19
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Adebomi V, Cohen RD, Wills R, Chavers HAH, Martin GE, Raj M. CyClick Chemistry for the Synthesis of Cyclic Peptides. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201911900] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Victor Adebomi
- Department of Chemistry and Biochemistry Auburn University Auburn AL 36830 USA
| | - Ryan D. Cohen
- Analytical Research and Development Merck & Co. Inc. Rahway NJ 07065 USA
- Department of Chemistry & Biochemistry Seton Hall University South Orange NJ 07079 USA
| | - Rachel Wills
- Department of Chemistry and Biochemistry Auburn University Auburn AL 36830 USA
| | | | - Gary E. Martin
- Analytical Research and Development Merck & Co. Inc. Rahway NJ 07065 USA
- Department of Chemistry & Biochemistry Seton Hall University South Orange NJ 07079 USA
| | - Monika Raj
- Department of Chemistry and Biochemistry Auburn University Auburn AL 36830 USA
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20
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Sarojini V, Cameron AJ, Varnava KG, Denny WA, Sanjayan G. Cyclic Tetrapeptides from Nature and Design: A Review of Synthetic Methodologies, Structure, and Function. Chem Rev 2019; 119:10318-10359. [PMID: 31418274 DOI: 10.1021/acs.chemrev.8b00737] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Small cyclic peptides possess a wide range of biological properties and unique structures that make them attractive to scientists working in a range of areas from medicinal to materials chemistry. However, cyclic tetrapeptides (CTPs), which are important members of this family, are notoriously difficult to synthesize. Various synthetic methodologies have been developed that enable access to natural product CTPs and their rationally designed synthetic analogues having novel molecular structures. These methodologies include the use of reversible protecting groups such as pseudoprolines that restrict conformational freedom, ring contraction strategies, on-resin cyclization approaches, and optimization of coupling reagents and reaction conditions such as temperature and dilution factors. Several fundamental studies have documented the impacts of amino acid configurations, N-alkylation, and steric bulk on both synthetic success and ensuing conformations. Carefully executed retrosynthetic ring dissection and the unique structural features of the linear precursor sequences that result from the ring dissection are crucial for the success of the cyclization step. Other factors that influence the outcome of the cyclization step include reaction temperature, solvent, reagents used as well as dilution levels. The purpose of this review is to highlight the current state of affairs on naturally occurring and rationally designed cyclic tetrapeptides, including strategies investigated for their syntheses in the literature, the conformations adopted by these molecules, and specific examples of their function. Using selected examples from the literature, an in-depth discussion of the synthetic techniques and reaction parameters applied for the successful syntheses of 12-, 13-, and 14-membered natural product CTPs and their novel analogues are presented, with particular focus on the cyclization step. Selected examples of the three-dimensional structures of cyclic tetrapeptides studied by NMR, and X-ray crystallography are also included.
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Affiliation(s)
- Vijayalekshmi Sarojini
- School of Chemical Sciences and the Centre for Green Chemical Science , University of Auckland , Auckland 1142 , New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology , Wellington 6140 , New Zealand
| | - Alan J Cameron
- School of Chemical Sciences and the Centre for Green Chemical Science , University of Auckland , Auckland 1142 , New Zealand
| | - Kyriakos G Varnava
- School of Chemical Sciences and the Centre for Green Chemical Science , University of Auckland , Auckland 1142 , New Zealand
| | | | - Gangadhar Sanjayan
- Division of Organic Chemistry , CSIR-National Chemical Laboratory , Dr. Homi Bhabha Road , Pune 411 008 , India
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21
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Wiśniewski K, Qi S, Kraus J, Ly B, Srinivasan K, Tariga H, Croston G, La E, Wiśniewska H, Ortiz C, Laporte R, Rivière PJM, Neyer G, Hargrove DM, Schteingart CD. Discovery of Potent, Selective, and Short-Acting Peptidic V 2 Receptor Agonists. J Med Chem 2019; 62:4991-5005. [PMID: 31022340 DOI: 10.1021/acs.jmedchem.9b00132] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The vasopressin analogue desmopressin (desamino-d-arginine8 vasopressin, dDAVP, 1) is a potent vasopressin 2 (V2) receptor (V2R) agonist approved in many countries for the treatment of diabetes insipidus, primary nocturnal enuresis, nocturia, and coagulation disorders. Since 1 is primarily excreted via the kidneys, an age-related decline in kidney function leads to slower elimination, prolonged antidiuresis, and hyponatremia. In search of novel, potent, selective, and short-acting peptidic V2R agonists, we synthesized a series of C-terminally truncated analogues of [Val4]dDAVP, 2, modified in positions 2, 3, and 7 and/or at the disulfide bridge. The peptides were evaluated for in vitro potency at the human V2 receptor, selectivity versus the related receptors (human vasopressin 1a receptor, human vasopressin 1b receptor, and human oxytocin receptor), and pharmacokinetic profiles in rodents and other higher species. The truncated analogues show excellent potency at the V2R, increased systemic clearance, and shorter half-life in rats. Two compounds 19 (c(Bua-Cpa-Thi-Val-Asn-Cys)-Pro-Agm) and 38 (c(Bua-Cpa-Thi-Val-Asn-Cys)-Pro-d-Arg-NEt2) have been selected for clinical development for nocturia.
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Affiliation(s)
| | - Steve Qi
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
| | - John Kraus
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
| | - Brian Ly
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
| | - Karthik Srinivasan
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
| | - Hiroe Tariga
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
| | - Glenn Croston
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
| | - Erin La
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
| | - Halina Wiśniewska
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
| | - Carlos Ortiz
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
| | - Régent Laporte
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
| | - Pierre J-M Rivière
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
| | - Gebhard Neyer
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
| | - Diane M Hargrove
- Ferring Research Institute Inc. , San Diego , California 92121 , United States
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22
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Reguera L, Rivera DG. Multicomponent Reaction Toolbox for Peptide Macrocyclization and Stapling. Chem Rev 2019; 119:9836-9860. [PMID: 30990310 DOI: 10.1021/acs.chemrev.8b00744] [Citation(s) in RCA: 188] [Impact Index Per Article: 37.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In the past decade, multicomponent reactions have experienced a renaissance as powerful peptide macrocyclization tools enabling the rapid creation of skeletal complexity and diversity with low synthetic cost. This review provides both a historical and modern overview of the development of the peptide multicomponent macrocyclization as a strategy capable to compete with the classic peptide cyclization methods in terms of chemical efficiency and synthetic scope. We prove that the utilization of multicomponent reactions for cyclizing peptides by either their termini or side chains provides a key advantage over those more established methods; that is, the possibility to explore the cyclic peptide chemotype space not only at the amino acid sequence but also at the ring-forming moiety. Owing to its multicomponent nature, this type of peptide cyclization process is well-suited to generate diversity at both the endo- and exo-cyclic fragments formed during the ring-closing step, which stands as a distinctive and useful characteristic for the creation and screening of cyclic peptide libraries. Examples of the novel multicomponent peptide stapling approach and heterocycle ring-forming macrocyclizations are included, along with multicomponent methods incorporating macrocyclization handles and the one-pot syntheses of macromulticyclic peptide cages. Interesting applications of this strategy in the field of drug discovery and chemical biology are provided.
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Affiliation(s)
- Leslie Reguera
- Center for Natural Product Research, Faculty of Chemistry , University of Havana , Zapata y G , Havana 10400 , Cuba
| | - Daniel G Rivera
- Center for Natural Product Research, Faculty of Chemistry , University of Havana , Zapata y G , Havana 10400 , Cuba
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23
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Jobin S, Beaumont C, Biron E. Development of a solid-phase traceless-Ugi multicomponent reaction for backbone anchoring and cyclic peptide synthesis. Pept Sci (Hoboken) 2019. [DOI: 10.1002/pep2.24044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Steve Jobin
- Faculté de Pharmacie, Université Laval, Pavillon Ferdinand-Vandry, 1050 Avenue de la Médecine; Québec G1V 0A6 Canada
- Laboratoire de Chimie Médicinale, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier; Québec G1V 4G2 Canada
| | - Catherine Beaumont
- Faculté de Pharmacie, Université Laval, Pavillon Ferdinand-Vandry, 1050 Avenue de la Médecine; Québec G1V 0A6 Canada
- Laboratoire de Chimie Médicinale, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier; Québec G1V 4G2 Canada
| | - Eric Biron
- Faculté de Pharmacie, Université Laval, Pavillon Ferdinand-Vandry, 1050 Avenue de la Médecine; Québec G1V 0A6 Canada
- Laboratoire de Chimie Médicinale, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier; Québec G1V 4G2 Canada
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24
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Cheng X, Hong H, Zhou Z, Wu Z. Enzymatic On-Resin Peptide Cleavage and in Situ Cyclization One-Pot Strategy for the Synthesis of Cyclopeptide and Cyclotide. J Org Chem 2018; 83:14078-14083. [PMID: 30277068 DOI: 10.1021/acs.joc.8b02032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A one-pot strategy combining sortase A mediated on-resin peptide cleavage and in situ cyclization was developed for the synthesis of cyclic peptides. This strategy was applied to synthesize head-to-tail cyclic antibacterial bovine lactoferricin peptide LFcinB20-35 in a yield of 67%. The one-pot strategy was compatible with an oxidative folding reaction, and complex cyclotides containing one or two disulfide bonds, such as sunflower trypsin inhibitors-1 and α-conotoxin MII, were successfully synthesized in one pot in a yield of 77% and 61%, respectively.
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Affiliation(s)
- Xiaozhong Cheng
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology , Jiangnan University , Wuxi 214122 , China
| | - Haofei Hong
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology , Jiangnan University , Wuxi 214122 , China
| | - Zhifang Zhou
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology , Jiangnan University , Wuxi 214122 , China
| | - Zhimeng Wu
- Key Laboratory of Carbohydrate Chemistry & Biotechnology, Ministry of Education, School of Biotechnology , Jiangnan University , Wuxi 214122 , China
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25
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Gaillard M, Das S, Djibo M, Raviglione D, Roumestand C, Legrand B, Inguimbert N. Towards the total synthesis of trichormamide A, a cyclic undecapeptide. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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26
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Chemical Synthesis and Functional Analysis of VarvA Cyclotide. Molecules 2018; 23:molecules23040952. [PMID: 29671790 PMCID: PMC6017059 DOI: 10.3390/molecules23040952] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 04/14/2018] [Accepted: 04/17/2018] [Indexed: 11/17/2022] Open
Abstract
Cyclotides are circular peptides found in various plant families. A cyclized backbone, together with multiple disulfide bonds, confers the peptides’ exceptional stability against protease digestion and thermal denaturation. In addition, the features of these antimicrobial molecules make them suitable for use in animal farming, such as aquaculture. Fmoc solid phase peptide synthesis on 2-chlorotrityl chlorine (CTC) resin using the “tea-bag” approach was conducted to generate the VarvA cyclotide identified previously from Viola arvensis. MALDI-TOF mass spectrometry determined the correct peptide amino acid sequence and the cyclization sites-critical in this multicyclic compound. The cyclotide showed antimicrobial activity against various Gram-negative bacteria, including recurrent pathogens present in Chilean aquaculture. The highest antimicrobial activity was found to be against Flavobacterium psychrophilum. In addition, membrane blebbing on the bacterial surface after exposure to the cyclotide was visualized by SEM microscopy and the Sytox Green permeabilization assay showed the ability to disrupt the bacterial membrane. We postulate that this compound can be proposed for the control of fish farming infections.
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27
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Fagundez C, Sellanes D, Serra G. Synthesis of Cyclic Peptides as Potential Anti-Malarials. ACS COMBINATORIAL SCIENCE 2018; 20:212-219. [PMID: 29446619 DOI: 10.1021/acscombsci.7b00154] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The results from the synthesis of peptides by Fmoc/SPPS on a 2-CTC resin and then lactamization in solution or solid phase for the preparation of cyclopeptides are presented. Both procedures allow the synthesis of the desired compounds in good to very good yield and with high cyclization efficiency for on-resin macrocyclization. In addition, the activities of the corresponding cyclopeptides against the chloroquine-resistant K1 strain of Plasmodium falciparum were evaluated. Cyclo-Cys(Trt)-Gly-Thr( tBu)-Gly-Cys(Trt)-Gly showed potent in vitro and selective activity against this parasite, EC50 = 28 nM.
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Affiliation(s)
- Catherine Fagundez
- Cátedra de Química Farmacéutica, (DQO), Facultad de Química, Universidad de la República, Gral. Flores 2124, CP 11800, Montevideo, Uruguay
| | - Diver Sellanes
- Cátedra de Química Farmacéutica, (DQO), Facultad de Química, Universidad de la República, Gral. Flores 2124, CP 11800, Montevideo, Uruguay
| | - Gloria Serra
- Cátedra de Química Farmacéutica, (DQO), Facultad de Química, Universidad de la República, Gral. Flores 2124, CP 11800, Montevideo, Uruguay
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28
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Szloszár A, Mándity IM, Fülöp F. Sustainable synthesis of N-methylated peptides in a continuous-flow fixed bed reactor. J Flow Chem 2018. [DOI: 10.1007/s41981-018-0002-9] [Citation(s) in RCA: 6] [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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29
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Wang L, Dong S, Daniliuc CG, Liu L, Grimme S, Knitsch R, Eckert H, Hansen MR, Kehr G, Erker G. Formation of macrocyclic ring systems by carbonylation of trifunctional P/B/B frustrated Lewis pairs. Chem Sci 2018; 9:1544-1550. [PMID: 29675199 PMCID: PMC5890323 DOI: 10.1039/c7sc04394e] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 12/13/2017] [Indexed: 12/26/2022] Open
Abstract
The trifunctional P/B/B frustrated Lewis pairs 11a-c featuring bulky aryl groups at phosphorus [Dmesp (a), Tipp (b), Mes* (c)] react with H2 by heterolytic hydrogen splitting followed by cleavage of HB(C6F5)2 to give the zwitterionic six-membered heterocyclic PH phosphonium/borate products 14a-c. Compounds 11a,b react with carbon monoxide by means of a Lewis acid induced CO insertion/rearrangement sequence that eventually results in the formation of the macrocyclic dimers 17a,b. The respective carbonylation reaction of the Mes*P/B/B FLP gives the macrocyclic trimer 18c. The new products were characterized spectroscopically and by X-ray diffraction and the reaction mechanism was analyzed by DFT calculations.
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Affiliation(s)
- Long Wang
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstr. 40 , 48149 Münster , Germany .
| | - Shunxi Dong
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstr. 40 , 48149 Münster , Germany .
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstr. 40 , 48149 Münster , Germany .
| | - Lei Liu
- Mulliken Center for Theoretical Chemistry , Institut für Physikalische und Theoretische Chemie , Universität Bonn , Beringstr. 4 , 53115 Bonn , Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry , Institut für Physikalische und Theoretische Chemie , Universität Bonn , Beringstr. 4 , 53115 Bonn , Germany
| | - Robert Knitsch
- Institut für Physikalische Chemie , Westfälische Wilhelms-Universität Münster , Corrensstr. 28/30 , 48149 Münster , Germany
| | - Hellmut Eckert
- Institut für Physikalische Chemie , Westfälische Wilhelms-Universität Münster , Corrensstr. 28/30 , 48149 Münster , Germany
- Institute of Physics in Sao Carlos , University of Sao Paulo , CEP 369 , Sao Carlos , SP 13566-590 , Brazil
| | - Michael Ryan Hansen
- Institut für Physikalische Chemie , Westfälische Wilhelms-Universität Münster , Corrensstr. 28/30 , 48149 Münster , Germany
| | - Gerald Kehr
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstr. 40 , 48149 Münster , Germany .
| | - Gerhard Erker
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstr. 40 , 48149 Münster , Germany .
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30
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Lear S, Munshi T, Hudson AS, Hatton C, Clardy J, Mosely JA, Bull TJ, Sit CS, Cobb SL. Total chemical synthesis of lassomycin and lassomycin-amide. Org Biomol Chem 2018; 14:4534-41. [PMID: 27101411 DOI: 10.1039/c6ob00631k] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Herein we report a practical synthetic route to the lasso peptide lassomycin () and C-terminal variant lassomycin-amide (). The biological evaluation of peptides and against Mycobacterium tuberculosis revealed that neither had any activity against this bacterium. This lack of biological activity has led us to propose that naturally occurring lassomycin may actually exhibit a standard lasso peptide threaded conformation rather than the previously reported unthreaded structure.
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Affiliation(s)
- S Lear
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - T Munshi
- St. George's University of London, London, SW17 0RE, UK
| | - A S Hudson
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - C Hatton
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - J Clardy
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Ave, Boston, MA 02115, USA.
| | - J A Mosely
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
| | - T J Bull
- St. George's University of London, London, SW17 0RE, UK
| | - C S Sit
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Ave, Boston, MA 02115, USA.
| | - S L Cobb
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK.
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31
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Danelius E, Pettersson M, Bred M, Min J, Waddell MB, Guy RK, Grøtli M, Erdelyi M. Flexibility is important for inhibition of the MDM2/p53 protein-protein interaction by cyclic β-hairpins. Org Biomol Chem 2018; 14:10386-10393. [PMID: 27731454 DOI: 10.1039/c6ob01510g] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Protein-protein interactions that have large, flat and featureless binding sites are difficult drug targets. In the development of their modulators conventional drug discovery strategies are often unsuccessful. Gaining a detailed understanding of the binding mode of protein-protein interaction inhibitors is therefore of vast importance for their future pharmaceutical use. The MDM2/p53 protein pair is a highly promising target for cancer treatment. Disruption of the protein complex using p53 α-helix mimetics has been shown to be a successful strategy to control p53 activity. To gain further insight into the binding of inhibitors to MDM2, the flexibility of four cyclic β-hairpins that act as α-helical mimetics and potential MDM2/p53 interaction inhibitors was investigated in relation to their inhibitory activity. MDM2-binding of the mimetics was determined using fluorescence polarization and surface plasmon resonance assays, whereas their conformation and dynamics in solution was described by the combined experimental and computational NAMFIS analysis. Molecular flexibility was shown to be important for the activity of the cyclic β-hairpin based MDM2 inhibitors.
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Affiliation(s)
- Emma Danelius
- Department of Chemistry and Molecular Biology, University of Gothenburg, SE-41296 Gothenburg, Sweden.
| | - Mariell Pettersson
- Department of Chemistry and Molecular Biology, University of Gothenburg, SE-41296 Gothenburg, Sweden.
| | - Matilda Bred
- Department of Chemistry and Molecular Biology, University of Gothenburg, SE-41296 Gothenburg, Sweden.
| | - Jaeki Min
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, Tennessee 38105, USA
| | - M Brett Waddell
- Molecular Interaction Analysis Shared Resource, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, Tennessee 38105, USA
| | - R Kiplin Guy
- Department of Chemical Biology and Therapeutics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, Tennessee 38105, USA
| | - Morten Grøtli
- Department of Chemistry and Molecular Biology, University of Gothenburg, SE-41296 Gothenburg, Sweden.
| | - Mate Erdelyi
- Department of Chemistry and Molecular Biology, University of Gothenburg, SE-41296 Gothenburg, Sweden. and Swedish NMR Centre, Medicinaregatan 5, SE-41390 Gothenburg, Sweden
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32
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Peptides as Bio-inspired Molecular Electronic Materials. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017. [PMID: 29081052 DOI: 10.1007/978-3-319-66095-0_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register]
Abstract
Understanding the electronic properties of single peptides is not only of fundamental importance to biology, but it is also pivotal to the realization of bio-inspired molecular electronic materials. Natural proteins have evolved to promote electron transfer in many crucial biological processes. However, their complex conformational nature inhibits a thorough investigation, so in order to study electron transfer in proteins, simple peptide models containing redox active moieties present as ideal candidates. Here we highlight the importance of secondary structure characteristic to proteins/peptides, and its relevance to electron transfer. The proposed mechanisms responsible for such transfer are discussed, as are details of the electrochemical techniques used to investigate their electronic properties. Several factors that have been shown to influence electron transfer in peptides are also considered. Finally, a comprehensive experimental and theoretical study demonstrates that the electron transfer kinetics of peptides can be successfully fine tuned through manipulation of chemical composition and backbone rigidity. The methods used to characterize the conformation of all peptides synthesized throughout the study are outlined, along with the various approaches used to further constrain the peptides into their geometric conformations. The aforementioned sheds light on the potential of peptides to one day play an important role in the fledgling field of molecular electronics.
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33
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Szloszár A, Fülöp F, Mándity IM. Accelerated Synthesis of Protected Peptides in a Continuous-Flow Fixed-Bed Reactor. ChemistrySelect 2017. [DOI: 10.1002/slct.201701489] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Aliz Szloszár
- Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 H-6720 Szeged Hungary
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 H-6720 Szeged Hungary
- Stereochemistry Research Group; Hungarian Academy of Sciences; Eötvös u. 6 H-6720 Szeged Hungary
| | - István M. Mándity
- Institute of Pharmaceutical Chemistry; University of Szeged; Eötvös u. 6 H-6720 Szeged Hungary
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34
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Puentes AR, Morejón MC, Rivera DG, Wessjohann LA. Peptide Macrocyclization Assisted by Traceless Turn Inducers Derived from Ugi Peptide Ligation with Cleavable and Resin-Linked Amines. Org Lett 2017; 19:4022-4025. [PMID: 28704057 DOI: 10.1021/acs.orglett.7b01761] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A multicomponent approach enabling the installation of turn-inducing moieties that facilitate the macrocyclization of short and medium-size oligopeptides is described. The strategy comprises the Ugi ligation of peptide carboxylic acids and isocyanopeptides in the presence of aldehydes and acid or photolabile amines followed by cyclization and cleavage of the backbone N-substituents to render canonical cyclopeptides. Implementing the approach on solid phase with the use of Rink amide resins led to a new class of backbone amide linker strategy.
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Affiliation(s)
- Alfredo R Puentes
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, 06120 Halle/Saale, Germany.,Center for Natural Products Research, Faculty of Chemistry, University of Havana , Zapata y G, 10400 Havana, Cuba
| | - Micjel C Morejón
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, 06120 Halle/Saale, Germany.,Center for Natural Products Research, Faculty of Chemistry, University of Havana , Zapata y G, 10400 Havana, Cuba
| | - Daniel G Rivera
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, 06120 Halle/Saale, Germany.,Center for Natural Products Research, Faculty of Chemistry, University of Havana , Zapata y G, 10400 Havana, Cuba
| | - Ludger A Wessjohann
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry , Weinberg 3, 06120 Halle/Saale, Germany
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35
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Danelius E, Andersson H, Jarvoll P, Lood K, Gräfenstein J, Erdélyi M. Halogen Bonding: A Powerful Tool for Modulation of Peptide Conformation. Biochemistry 2017; 56:3265-3272. [PMID: 28581720 PMCID: PMC5510091 DOI: 10.1021/acs.biochem.7b00429] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
![]()
Halogen
bonding is a weak chemical force that has so far mostly
found applications in crystal engineering. Despite its potential for
use in drug discovery, as a new molecular tool in the direction of
molecular recognition events, it has rarely been assessed in biopolymers.
Motivated by this fact, we have developed a peptide model system that
permits the quantitative evaluation of weak forces in a biologically
relevant proteinlike environment and have applied it for the assessment
of a halogen bond formed between two amino acid side chains. The influence
of a single weak force is measured by detection of the extent to which
it modulates the conformation of a cooperatively folding system. We
have optimized the amino acid sequence of the model peptide on analogues
with a hydrogen bond-forming site as a model for the intramolecular
halogen bond to be studied, demonstrating the ability of the technique
to provide information about any type of weak secondary interaction.
A combined solution nuclear magnetic resonance spectroscopic and computational
investigation demonstrates that an interstrand halogen bond is capable
of conformational stabilization of a β-hairpin foldamer comparable
to an analogous hydrogen bond. This is the first report of incorporation
of a conformation-stabilizing halogen bond into a peptide/protein
system, and the first quantification of a chlorine-centered halogen
bond in a biologically relevant system in solution.
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Affiliation(s)
- Emma Danelius
- Department of Chemistry and Molecular Biology, University of Gothenburg , SE-41296 Gothenburg, Sweden
| | - Hanna Andersson
- Department of Chemistry and Molecular Biology, University of Gothenburg , SE-41296 Gothenburg, Sweden
| | - Patrik Jarvoll
- Department of Chemistry and Molecular Biology, University of Gothenburg , SE-41296 Gothenburg, Sweden
| | - Kajsa Lood
- Department of Chemistry and Molecular Biology, University of Gothenburg , SE-41296 Gothenburg, Sweden
| | - Jürgen Gräfenstein
- Department of Chemistry and Molecular Biology, University of Gothenburg , SE-41296 Gothenburg, Sweden
| | - Máté Erdélyi
- Department of Chemistry and Molecular Biology, University of Gothenburg , SE-41296 Gothenburg, Sweden.,Swedish NMR Centre , Medicinaregatan 5, SE-41390 Gothenburg, Sweden
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36
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Jędrzejczak K, Hrynczyszyn P, Szczesio M, Artym J, Jastrząbek T, Kocięba M, Główka M, Huben K, Kochanowska I, Zimecki M, Zabrocki J, Jankowski S, Kolesińska B. Synthesis and biological activity of cyclolinopeptide A analogues modified with γ 4-bis(homo-phenylalanine). Bioorg Med Chem 2017; 25:4265-4276. [PMID: 28662964 DOI: 10.1016/j.bmc.2017.05.063] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 05/28/2017] [Accepted: 05/30/2017] [Indexed: 01/19/2023]
Abstract
Cyclolinopeptide A (CLA), an immunosuppressive nonapeptide derived from linen seeds, was modified with S or R-γ4-bis(homo-phenylalanine) in positions 3 or 4, or both 3 and 4. These modifications changed the flexibility of new analogues and distribution of intramolecular hydrogen bonds. Analogues 11 c(Pro1-Pro2-Phe3-S-γ4-hhPhe4-Leu5-Ile6-Ile7-Leu8-Val9), 13 c(Pro1-Pro2-S-γ4-hhPhe3-R-γ4-hhPhe4-Leu5-Ile6-Ile7-Leu8-Val9) and 15 c(Pro1-Pro2-R-γ4-hhPhe3-Phe4-Leu5-Ile6-Ile7-Leu8-Val9) existed as a mixture of stable cis/trans isomers of Pro-Pro peptide bond. The comparison of the relative spatial orientations in crystal state of the two carbonyl groups, neighboring γ-amino acids, revealed conformational similarities to α-peptides. The addition of two -CH2- groups in γ-amino acids led to a more rigid conformation, although a more flexible one was expected. A significant difference in the relative orientation of the carbonyl groups was found for cyclic γ-peptides with a dominance of an antiparallel arrangement. As carbonyl groups may be engaged in the interactions with plausible receptors through hydrogen bonds, a similar biological activity of the modified peptides was expected. Our biological studies showed that certain cyclic, but not the corresponding linear peptides, lowered the viability of peripheral blood mononuclear cells (PBMC) at 100μg/mL concentration. The proliferation of PBMC induced by phytohemagglutinin A (PHA) was strongly inhibited by cyclic peptides only, in a dose-dependant manner. On the other hand, lipopolysaccharide (LPS)-induced tumor necrosis factor alpha (TNF-α) production in whole blood cell cultures was inhibited by both linear and cyclic peptides. Peptide 15 c(Pro1-Pro2-R-γ4-hhPhe3-Phe4-Leu5-Ile6-Ile7-Leu8-Val9) blocked the expression of caspase-3, inhibited the expression of caspases-8 and -9 in 24h culture of Jurkat cells, and caused DNA fragmentation in these cells, as an indicator of apoptosis. Thus, we revealed a new mechanism of immunosuppressive action of a nonapeptide.
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Affiliation(s)
- Karol Jędrzejczak
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland.
| | - Paweł Hrynczyszyn
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Małgorzata Szczesio
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Jolanta Artym
- Institute of Immunology and Experimental Therapy, Polish Academy of Science, R. Weigla 12, 53-114 Wrocław, Poland
| | - Tomasz Jastrząbek
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Maja Kocięba
- Institute of Immunology and Experimental Therapy, Polish Academy of Science, R. Weigla 12, 53-114 Wrocław, Poland
| | - Marek Główka
- Institute of General and Ecological Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Krzysztof Huben
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Iwona Kochanowska
- Institute of Immunology and Experimental Therapy, Polish Academy of Science, R. Weigla 12, 53-114 Wrocław, Poland
| | - Michał Zimecki
- Institute of Immunology and Experimental Therapy, Polish Academy of Science, R. Weigla 12, 53-114 Wrocław, Poland
| | - Janusz Zabrocki
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Stefan Jankowski
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Beata Kolesińska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
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37
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Solid-phase synthesis, cyclization, and site-specific functionalization of aziridine-containing tetrapeptides. Nat Protoc 2017; 12:1277-1287. [PMID: 28538738 DOI: 10.1038/nprot.2017.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cyclic tetrapeptides comprise a potent and selective class of molecules with a wide range of biological activities, including the phytotoxic activity of tentoxin and the histone deacetylase (HDAC) inhibitory effects of chlamydocin. The incorporation of a functional aziridine group within cyclic peptides enables their conformational control and allows for late-stage and site-selective functionalization of these molecules, thereby creating the potential for covalent protein labeling. This protocol describes the solid-phase synthesis, cyclization, and site-specific structural modification of aziridine-containing tetrapeptides. The linear precursors are assembled by solid-phase peptide synthesis using Fmoc-protected amino acid building blocks, followed by head-to-tail peptide cyclization. Cyclization is performed using a slow reverse-addition method that prevents the formation of undesired higher-order cyclo-oligomeric side products. Site-specific structural modification of the resulting macrocycles is described using sodium azide or thiophenol as representative examples. It requires ∼4 d to prepare peptide macrocycles from their respective Fmoc-protected amino acid starting materials, an improvement upon the 3 weeks required for conventional solution-phase methods. This protocol also addresses important considerations regarding the handling of these compounds, whose electrophilic aziridine functionalities can otherwise be prone to undesired side reactions. With recent developments in aziridine-containing macrocyclic peptide synthesis and the potential for covalent protein labeling, these scaffolds represent a valuable addition to many screening libraries, and we expect that access to these macrocycles will facilitate efforts in drug discovery and molecular probe development.
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38
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Andersson H, Danelius E, Jarvoll P, Niebling S, Hughes AJ, Westenhoff S, Brath U, Erdélyi M. Assessing the Ability of Spectroscopic Methods to Determine the Difference in the Folding Propensities of Highly Similar β-Hairpins. ACS OMEGA 2017; 2:508-516. [PMID: 28261689 PMCID: PMC5331454 DOI: 10.1021/acsomega.6b00484] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 01/16/2017] [Indexed: 05/20/2023]
Abstract
We have evaluated the ability of nuclear magnetic resonance (NMR) and circular dichroism (CD) spectroscopies to describe the difference in the folding propensities of two structurally highly similar cyclic β-hairpins, comparing the outcome to that of molecular dynamics simulations. NAMFIS-type NMR ensemble analysis and CD spectroscopy were observed to accurately describe the consequence of altering a single interaction site, whereas a single-site 13C NMR chemical shift melting curve-based technique was not.
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Affiliation(s)
- Hanna Andersson
- Department
of Chemistry and Molecular Biology, University
of Gothenburg, Kemivägen 10, SE-412 96 Gothenburg, Sweden
| | - Emma Danelius
- Department
of Chemistry and Molecular Biology, University
of Gothenburg, Kemivägen 10, SE-412 96 Gothenburg, Sweden
| | - Patrik Jarvoll
- Department
of Chemistry and Molecular Biology, University
of Gothenburg, Kemivägen 10, SE-412 96 Gothenburg, Sweden
| | - Stephan Niebling
- Department
of Chemistry and Molecular Biology, University
of Gothenburg, Kemivägen 10, SE-412 96 Gothenburg, Sweden
| | - Ashley J. Hughes
- Department
of Chemistry and Molecular Biology, University
of Gothenburg, Kemivägen 10, SE-412 96 Gothenburg, Sweden
| | - Sebastian Westenhoff
- Department
of Chemistry and Molecular Biology, University
of Gothenburg, Kemivägen 10, SE-412 96 Gothenburg, Sweden
| | - Ulrika Brath
- Department
of Chemistry and Molecular Biology, University
of Gothenburg, Kemivägen 10, SE-412 96 Gothenburg, Sweden
| | - Máté Erdélyi
- Department
of Chemistry and Molecular Biology, University
of Gothenburg, Kemivägen 10, SE-412 96 Gothenburg, Sweden
- The
Swedish NMR Centre, Medicinaregatan
5c, SE-413 96 Gothenburg, Sweden
- E-mail: (M.E.)
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39
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Wu ZM, Liu SZ, Cheng XZ, Ding WZ, Zhu T, Chen B. Recent progress of on-resin cyclization for the synthesis of clycopeptidomimetics. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.04.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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40
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De Marco R, Bedini A, Spampinato S, Cavina L, Pirazzoli E, Gentilucci L. Versatile Picklocks To Access All Opioid Receptors: Tuning the Selectivity and Functional Profile of the Cyclotetrapeptide c[Phe-d-Pro-Phe-Trp] (CJ-15,208). J Med Chem 2016; 59:9255-9261. [DOI: 10.1021/acs.jmedchem.6b00420] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Rossella De Marco
- Department
of Chemistry “G. Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Andrea Bedini
- Department
of Pharmacy and Biotechnology, University of Bologna, Via Irnerio
48, 40126 Bologna, Italy
| | - Santi Spampinato
- Department
of Pharmacy and Biotechnology, University of Bologna, Via Irnerio
48, 40126 Bologna, Italy
| | - Lorenzo Cavina
- Department
of Chemistry “G. Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Edoardo Pirazzoli
- Department
of Chemistry “G. Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Luca Gentilucci
- Department
of Chemistry “G. Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy
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41
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Gentilucci L, Gallo F, Meloni F, Mastandrea M, Del Secco B, De Marco R. Controlling Cyclopeptide Backbone Conformation with β/α-Hybrid Peptide-Heterocycle Scaffolds. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600448] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Luca Gentilucci
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Francesca Gallo
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Fernanda Meloni
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Marco Mastandrea
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Benedetta Del Secco
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Rossella De Marco
- Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
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42
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Isolation and Synthesis of Laxaphycin B-Type Peptides: A Case Study and Clues to Their Biosynthesis. Mar Drugs 2015; 13:7285-300. [PMID: 26690181 PMCID: PMC4699238 DOI: 10.3390/md13127065] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 11/30/2015] [Indexed: 01/08/2023] Open
Abstract
The laxaphyci’s B family constitutes a group of five related cyclic lipopeptides isolated from diverse cyanobacteria from all around the world. This group shares a typical structure of 12 amino acids from the l and d series, some of them hydroxylated at the beta position, and all containing a rare beta-amino decanoic acid. Nevertheless, they can be differentiated due to slight variations in the composition of their amino acids, but the configuration of their alpha carbon remains conserved. Here, we provide the synthesis and characterization of new laxaphycin B-type peptides. In doing so we discuss how the synthesis of laxaphycin B and analogues was developed. We also isolate minor acyclic laxaphycins B, which are considered clues to their biosynthesis.
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43
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Choi SH, Jeong WJ, Choi SJ, Lim YB. Highly efficient and fast pre-activation cyclization of the long peptide: Succinimidyl ester-amine reaction revisited. Bioorg Med Chem Lett 2015; 25:5335-8. [DOI: 10.1016/j.bmcl.2015.09.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 09/12/2015] [Accepted: 09/15/2015] [Indexed: 10/23/2022]
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44
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Martí-Centelles V, Pandey MD, Burguete MI, Luis SV. Macrocyclization Reactions: The Importance of Conformational, Configurational, and Template-Induced Preorganization. Chem Rev 2015; 115:8736-834. [DOI: 10.1021/acs.chemrev.5b00056] [Citation(s) in RCA: 278] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
| | - Mrituanjay D. Pandey
- Departament de Química
Inorgànica i Orgànica, Universitat Jaume I, 12071 Castelló, Spain
| | - M. Isabel Burguete
- Departament de Química
Inorgànica i Orgànica, Universitat Jaume I, 12071 Castelló, Spain
| | - Santiago V. Luis
- Departament de Química
Inorgànica i Orgànica, Universitat Jaume I, 12071 Castelló, Spain
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45
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Solid phase synthesis of constrained 13-membered peptide macrocycles employing Fukuyama–Mitsunobu alkylations. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.091] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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46
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Lay M, Bannwarth W. Synthesis of ‘head-to-tail’ cyclized peptides on solid support using a chelating amide as new orthogonal protecting group. J Pept Sci 2015; 21:461-6. [DOI: 10.1002/psc.2758] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 01/12/2015] [Accepted: 01/13/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Myriam Lay
- Organische Chemie; Universität Freiburg; Albertstr. 21 79104 Freiburg Germany
| | - Willi Bannwarth
- Organische Chemie; Universität Freiburg; Albertstr. 21 79104 Freiburg Germany
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47
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Culf AS, Čuperlović-Culf M, Léger DA, Decken A. Small head-to-tail macrocyclic α-peptoids. Org Lett 2014; 16:2780-3. [PMID: 24797336 DOI: 10.1021/ol501102b] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A convenient and efficient methodology for the head-to-tail macrocyclization of small 3-mer, 4-mer, and 5-mer α-peptoid acids (9-, 12-, and 15-atom N-substituted glycine oligomers) is described. The cyclic trimer has a ccc amide sequence in the crystal structure, whereas the tetramer has ctct and the pentamer has ttccc stereochemistry. NMR analysis reveals rigid structures in solution. These synthetic macrocycles may prove useful in medicinal and materials applications.
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Affiliation(s)
- Adrian S Culf
- Atlantic Cancer Research Institute , 35 Providence Street, Moncton, NB E1C 8X3, Canada
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48
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White CJ, Hickey JL, Scully CCG, Yudin AK. Site-specific integration of amino acid fragments into cyclic peptides. J Am Chem Soc 2014; 136:3728-31. [PMID: 24533886 DOI: 10.1021/ja412256f] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The concept of site-specific integration of fragments into macrocyclic entities has not yet found application in the realm of synthetic chemistry. Here we show that the reduced amidicity of aziridine amide bonds provides an entry point for the site-specific integration of amino acids and peptide fragments into the homodetic cyclic peptide architecture. This new synthetic operation improves both the convergence and divergence of cyclic peptide synthesis.
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Affiliation(s)
- Christopher J White
- Davenport Research Laboratories, Department of Chemistry, University of Toronto , 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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49
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Ahmed MI, Harper JB, Hunter L. Incrementally increasing the length of a peptide backbone: effect on macrocyclisation efficiency. Org Biomol Chem 2014; 12:4598-601. [DOI: 10.1039/c4ob00492b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Template-constrained macrocyclic peptides prepared from native, unprotected precursors. Proc Natl Acad Sci U S A 2013; 110:E3753-60. [PMID: 24043790 DOI: 10.1073/pnas.1311706110] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Peptide-protein interactions are important mediators of cellular-signaling events. Consensus binding motifs (also known as short linear motifs) within these contacts underpin molecular recognition, yet have poor pharmacological properties as discrete species. Here, we present methods to transform intact peptides into stable, templated macrocycles. Two simple steps install the template. The key reaction is a palladium-catalyzed macrocyclization. The catalysis has broad scope and efficiently forms large rings by engaging native peptide functionality including phenols, imidazoles, amines, and carboxylic acids without the necessity of protecting groups. The tunable reactivity of the template gives the process special utility. Defined changes in reaction conditions markedly alter chemoselectivity. In all cases examined, cyclization occurs rapidly and in high yield at room temperature, regardless of peptide composition or chain length. We show that conformational restraints imparted by the template stabilize secondary structure and enhance proteolytic stability in vitro. Palladium-catalyzed internal cinnamylation is a strong complement to existing methods for peptide modification.
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