1
|
A Diphenylalanine Based Pentapeptide with Fibrillating Self-Assembling Properties. Pharmaceutics 2023; 15:pharmaceutics15020371. [PMID: 36839694 PMCID: PMC9966497 DOI: 10.3390/pharmaceutics15020371] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Abstract
Peptides and their related compounds can self-assemble into diverse nanostructures of different shapes and sizes in response to various stimuli such as pH, temperature or ionic strength. Here we report the synthesis and characterization of a lysozyme derived pentapeptide and its ability to build well-defined fibrillar structures. Lysozyme FESNF peptide fragment was synthesized by solid phase peptide synthesis using the Fmoc/t-Bu strategy, purified by analytical high-performance liquid chromatography (HPLC) and its molecular weight was confirmed by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). Spectroscopic features of this pentapeptide were investigated by UV-visible spectroscopy and fluorimetry showing the pattern of marginal phenylalanine residues within the peptide sequence. Self-assembling properties were determined using atomic force microscopy (AFM), aggregation index and thioflavin T assay (ThT). FESNF generating fibrillar structures observed by AFM and aggregation propensity were primarily influenced by pH conditions. Moreover, the experimental data were confirmed by molecular dynamics simulation studies. The obtained fibrils will be used next to explore their potential to act as support material for medical and cosmetic application.
Collapse
|
2
|
Xie Y, Luo D, Wiener J, Tang S, Chepyshev S, Schafmeister C. Development of Fmoc-Protected Bis-Amino Acids toward Automated Synthesis of Highly Functionalized Spiroligomers. Org Lett 2022; 24:3421-3425. [PMID: 35499925 PMCID: PMC9113113 DOI: 10.1021/acs.orglett.2c01295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We report the fluorenylmethoxycarbonyl (Fmoc) protection of functionalized bis-amino acid building blocks using a temporary Cu2+ complexation strategy, together with an efficient multikilogram-scale synthesis of bis-amino acid precursors. This allows the synthesis of stereochemically and functionally diverse spiroligomers utilizing solid-phase Fmoc/tBu chemistry to facilitate the development of applications. Four tetramers were assembled on a semiautomated microwave peptide synthesizer. We determined their secondary structures with two-dimensional nuclear magnetic resonance spectroscopy.
Collapse
|
3
|
Lin Y, Malins LR. An Electrochemical Approach to Designer Peptide α-Amides Inspired by α-Amidating Monooxygenase Enzymes. J Am Chem Soc 2021; 143:11811-11819. [PMID: 34288681 DOI: 10.1021/jacs.1c05718] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Designer C-terminal peptide amides are accessed in an efficient and epimerization-free approach by pairing an electrochemical oxidative decarboxylation with a tandem hydrolysis/reduction pathway. Resembling Nature's dual enzymatic approach to bioactive primary α-amides, this method delivers secondary and tertiary amides bearing high-value functional motifs, including isotope labels and handles for bioconjugation. The protocol leverages the inherent reactivity of C-terminal carboxylates, is compatible with the vast majority of proteinogenic functional groups, and proceeds in the absence of epimerization, thus addressing major limitations associated with conventional coupling-based approaches. The utility of the method is exemplified through the synthesis of natural product acidiphilamide A via a key diastereoselective reduction, as well as bioactive peptides and associated analogues, including an anti-HIV lead peptide and blockbuster cancer therapeutic leuprolide.
Collapse
Affiliation(s)
- Yutong Lin
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Lara R Malins
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia.,Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, Australian National University, Canberra, ACT 2601, Australia
| |
Collapse
|
4
|
Papadopoulos C, Fotou E, Moussis V, Ntoyhaniari A, Zografou S, Maltabe V, Kouklis P, Christoforidis S, Tsikaris V. Intracellular targets: A multiple cargo transporting molecule. J Pept Sci 2021; 27:e3359. [PMID: 34131994 DOI: 10.1002/psc.3359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 06/01/2021] [Accepted: 06/07/2021] [Indexed: 11/10/2022]
Abstract
The generation of cell-penetrating peptides as cargo-delivery systems has produced an immense number of studies owing to the importance of these systems as tools to deliver molecules into the cells, as well as due to the interest to shed light into a yet unclear mechanism of the entrance of these peptides into the cells. However, many cell-penetrating peptides might present drawbacks due to causing cellular toxicity, or due to being entrapped in endosomes, or as a result of their degradation before they meet their target. In this work, a cargo transporting molecule, the Cell Penetrating Sequential Oligopeptide Carrier (CPSOC), formed by the repetitive -Lys-Aib-Cys- moiety, was tested for its ability to penetrate the cell membrane and transport the conjugated peptides into the cells. The cysteine residue anchors bioactive molecules through a stable thioether bond. The lysine supplies the positive charge to the construct, whereas the α-amino isobutyric acid is well known to induce helicoid conformation to the peptide backbone and protects from enzymatic degradation. The present study demonstrates that CPSOC penetrates the membrane transporting the conjugated cargo into the cell. When we tested CPSOC-conjugated peptides carrying critical domains of Cdc42, a small GTPase implicated in exocytosis, the internalized peptides were found to be functional because they inhibited exocytosis of von Willebrand factor from endothelial Weibel-Palade bodies a trafficking event depending on the Cdc42 protein. The data suggest that the carrier can deliver efficiently functional peptides into the cells, and thus, it can be used as a multiple-cargo transporting molecule.
Collapse
Affiliation(s)
- Christos Papadopoulos
- Laboratory of Protein and Peptide Chemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
| | - Evgenia Fotou
- Laboratory of Protein and Peptide Chemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
| | - Vassilios Moussis
- Laboratory of Protein and Peptide Chemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
| | - Alaxandra Ntoyhaniari
- Laboratory of Biology, Department of Medicine, University of Ioannina, Ioannina, Greece
| | - Sofia Zografou
- Laboratory of Biological Chemistry, Department of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece.,Division of Biomedical Research, Foundation for Research and Technology, Institute of Molecular Biology and Biotechnology, Ioannina, Greece
| | - Violetta Maltabe
- Laboratory of Biology, Department of Medicine, University of Ioannina, Ioannina, Greece.,Division of Biomedical Research, Foundation for Research and Technology, Institute of Molecular Biology and Biotechnology, Ioannina, Greece
| | - Panos Kouklis
- Laboratory of Biology, Department of Medicine, University of Ioannina, Ioannina, Greece.,Division of Biomedical Research, Foundation for Research and Technology, Institute of Molecular Biology and Biotechnology, Ioannina, Greece
| | - Savvas Christoforidis
- Laboratory of Biological Chemistry, Department of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece.,Division of Biomedical Research, Foundation for Research and Technology, Institute of Molecular Biology and Biotechnology, Ioannina, Greece
| | - Vassilios Tsikaris
- Laboratory of Protein and Peptide Chemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
| |
Collapse
|
5
|
Kobayashi K, Taguchi A, Cui Y, Shida H, Muguruma K, Takayama K, Taniguchi A, Hayashi Y. “On‐Resin” Disulfide Peptide Synthesis with Methyl 3‐Nitro‐2‐pyridinesulfenate. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kiyotaka Kobayashi
- Department of Medicinal chemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji, Tokyo 192–0392 Japan
| | - Akihiro Taguchi
- Department of Medicinal chemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji, Tokyo 192–0392 Japan
| | - Yan Cui
- Department of Medicinal chemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji, Tokyo 192–0392 Japan
| | - Hayate Shida
- Department of Medicinal chemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji, Tokyo 192–0392 Japan
| | - Kyohei Muguruma
- Department of Medicinal chemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji, Tokyo 192–0392 Japan
| | - Kentaro Takayama
- Department of Medicinal chemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji, Tokyo 192–0392 Japan
| | - Atsuhiko Taniguchi
- Department of Medicinal chemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji, Tokyo 192–0392 Japan
| | - Yoshio Hayashi
- Department of Medicinal chemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji, Tokyo 192–0392 Japan
| |
Collapse
|
6
|
Govender K, Naicker T, Baijnath S, Kruger HG, Govender T. The development of a sub/supercritical fluid chromatography based purification method for peptides. J Pharm Biomed Anal 2020; 190:113539. [DOI: 10.1016/j.jpba.2020.113539] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/28/2020] [Accepted: 08/05/2020] [Indexed: 11/24/2022]
|
7
|
Muguruma K, Ito M, Fukuda A, Kishimoto S, Taguchi A, Takayama K, Taniguchi A, Ito Y, Hayashi Y. Synthesis and structure-activity relationship studies of IgG-binding peptides focused on the C-terminal histidine residue. MEDCHEMCOMM 2019; 10:1789-1795. [PMID: 31762965 PMCID: PMC6855313 DOI: 10.1039/c9md00294d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 07/31/2019] [Indexed: 11/21/2022]
Abstract
Currently, IgG-binding peptides are widely utilized as a research tool, as molecules that guide substrates to the Fc site for site-selective antibody modification, leading to preparation of a homogeneous antibody-drug conjugate. In this study, a structure-activity relationship study of an IgG-binding peptide, 15-IgBP, that is focused on its C-terminal His residue was performed in an attempt to create more potent peptides. A peptide with a substitution of His17 by 2-pyridylalanine (2-Pya) showed a good binding affinity (15-His17(2-Pya), K d = 75.7 nM). In combination with a previous result, we obtained 15-Lys8Leu/His17(2-Pya)-OH that showed a potent binding affinity (K d = 2.48 nM) and avoided three synthetic problems concerning the p-hydroxybenzyl amidation at the C-terminus, the difficulty associated with coupling at the His7 position and the racemization of 2-Pya.
Collapse
Affiliation(s)
- Kyohei Muguruma
- Department of Medicinal Chemistry , Tokyo University of Pharmacy and Life Sciences , Hachioji , Tokyo , 192-0392 , Japan .
| | - Mayu Ito
- Department of Medicinal Chemistry , Tokyo University of Pharmacy and Life Sciences , Hachioji , Tokyo , 192-0392 , Japan .
| | - Akane Fukuda
- Department of Medicinal Chemistry , Tokyo University of Pharmacy and Life Sciences , Hachioji , Tokyo , 192-0392 , Japan .
| | - Satoshi Kishimoto
- Department of Chemistry and Bioscience , Graduate School of Science and Engineering , Kagoshima University , Korimoto , Kagoshima , 890-0065 , Japan
| | - Akihiro Taguchi
- Department of Medicinal Chemistry , Tokyo University of Pharmacy and Life Sciences , Hachioji , Tokyo , 192-0392 , Japan .
| | - Kentaro Takayama
- Department of Medicinal Chemistry , Tokyo University of Pharmacy and Life Sciences , Hachioji , Tokyo , 192-0392 , Japan .
| | - Atsuhiko Taniguchi
- Department of Medicinal Chemistry , Tokyo University of Pharmacy and Life Sciences , Hachioji , Tokyo , 192-0392 , Japan .
| | - Yuji Ito
- Department of Chemistry and Bioscience , Graduate School of Science and Engineering , Kagoshima University , Korimoto , Kagoshima , 890-0065 , Japan
| | - Yoshio Hayashi
- Department of Medicinal Chemistry , Tokyo University of Pharmacy and Life Sciences , Hachioji , Tokyo , 192-0392 , Japan .
| |
Collapse
|
8
|
Tanaka T, Shiraishi M, Matsuda A, Mizuno M. Efficient synthesis of N- and O-linked glycopeptides using acid-labile Boc groups for the protection of carbohydrate moieties. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
9
|
Mizerska-Kowalska M, Kreczko-Kurzawa J, Zdzisińska B, Czerwonka A, Sławińska-Brych A, Maćkiewicz Z, Nidzworski D, Kandefer-Szerszeń M. Neutral endopeptidase (NEP) inhibitors - thiorphan, sialorphin, and its derivatives exert anti-proliferative activity towards colorectal cancer cells in vitro. Chem Biol Interact 2019; 307:105-115. [PMID: 31054283 DOI: 10.1016/j.cbi.2019.04.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 04/05/2019] [Accepted: 04/28/2019] [Indexed: 11/17/2022]
Abstract
Neutral endopeptidase (NEP) is an enzyme implicated in development of different tumors, e.g. colorectal cancer (CRC). In this study, the anti-cancer effects of NEP inhibitors, thiorphan (synthetic compound) and sialorphin (naturally occurring pentapeptide) on CRC cells were investigated. Moreover, we synthesized some derivatives of sialorphin (alanine scan analogues: AHNPR, QANPR, QHAPR, QHNAR; N-acetylated sialorphin; C-amidated sialorphin, and C-amidated alanine scan analogues) to examine the biological activity of these inhibitors on CRC cells. The cytotoxic activity of the NEP inhibitors against CRC cell lines (SW620 and LS180) and normal human fibroblasts (HSF) was evaluated. Additionally, the influence of NEP inhibitors on proliferation, cell cycle progression, induction of apoptosis, and the level of phosphorylation of MAP kinases and mTORC1 signaling pathway proteins in CRC cells were examined. The NEP inhibitors were non-cytotoxic to HSF cells; however, most of them slightly decreased the viability and inhibited proliferation of CRC cells. The N-acetylation or C-amidation of sialorphin or its alanine scan analogues resulted in decreased or abolished anti-proliferative activity of the NEP inhibitors towards the CRC cells. Additionally, thiorphan and sialorphin enhanced the anti-proliferative activity of other CRC-cell growth inhibitors (atrial natriuretic peptide-ANP and melphalan-MEL). The mechanisms involved in the anti-proliferative effects of the tested inhibitors were mediated via NEP and associated with induction of cell cycle arrest in the G0/G1 phase, increased activity of ERK1/2, and a reduced level of phosphorylation of mTOR (Ser2448), 4E-BP1, and p70S6K. However, the NEP inhibitors did not induce apoptosis in the CRC cells. These results have indicated that thiorphan and sialorphin or its derivatives AHNPR, QANPR, QHAPR, and QHNAR have the potential to be used as agents in treatment of patients with CRC.
Collapse
Affiliation(s)
- Magdalena Mizerska-Kowalska
- Maria Curie-Sklodowska University, Faculty of Biology and Biotechnology, Department of Virology and Immunology, Lublin, Poland.
| | - Joanna Kreczko-Kurzawa
- University of Gdansk, Laboratory of Biological Macromolecules' Chemistry, Department of Molecular Biotechnology, Faculty of Chemistry, Gdansk, Poland.
| | - Barbara Zdzisińska
- Maria Curie-Sklodowska University, Faculty of Biology and Biotechnology, Department of Virology and Immunology, Lublin, Poland.
| | - Arkadiusz Czerwonka
- Maria Curie-Sklodowska University, Faculty of Biology and Biotechnology, Department of Virology and Immunology, Lublin, Poland.
| | - Adrianna Sławińska-Brych
- Maria Curie-Sklodowska University, Faculty of Biology and Biotechnology, Department of Cell Biology, Lublin, Poland.
| | - Zbigniew Maćkiewicz
- University of Gdansk, Laboratory of Biological Macromolecules' Chemistry, Department of Molecular Biotechnology, Faculty of Chemistry, Gdansk, Poland.
| | - Dawid Nidzworski
- The Institute of Biotechnology and Molecular Medicine, Gdansk, Poland.
| | - Martyna Kandefer-Szerszeń
- Maria Curie-Sklodowska University, Faculty of Biology and Biotechnology, Department of Virology and Immunology, Lublin, Poland.
| |
Collapse
|
10
|
PEG and PEG-peptide based doxorubicin delivery systems containing hydrazone bond. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1506-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
11
|
Camerino MA, Liu M, Moriya S, Kitahashi T, Mahgoub A, Mountford SJ, Chalmers DK, Soga T, Parhar IS, Thompson PE. Beta amino acid-modified and fluorescently labelled kisspeptin analogues with potent KISS1R activity. J Pept Sci 2017; 22:406-14. [PMID: 27282137 DOI: 10.1002/psc.2883] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 03/11/2016] [Accepted: 03/12/2016] [Indexed: 12/31/2022]
Abstract
Kisspeptin analogues with improved metabolic stability may represent important ligands in the study of the kisspeptin/KISS1R system and have therapeutic potential. In this paper we assess the activity of known and novel kisspeptin analogues utilising a dual luciferase reporter assay in KISS1R-transfected HEK293T cells. In general terms the results reflect the outcomes of other assay formats and a number of potent agonists were identified among the analogues, including β(2) -hTyr-modified and fluorescently labelled forms. We also showed, by assaying kisspeptin in the presence of protease inhibitors, that proteolysis of kisspeptin activity within the reporter assay itself may diminish the agonist outputs. Copyright © 2016 European Peptide Society and John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- M A Camerino
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, 3052, Australia
| | - M Liu
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, 3052, Australia
| | - S Moriya
- Brain Research Institutes, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, 47500, Malaysia
| | - T Kitahashi
- Brain Research Institutes, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, 47500, Malaysia
| | - A Mahgoub
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, 3052, Australia
| | - S J Mountford
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, 3052, Australia
| | - D K Chalmers
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, 3052, Australia
| | - T Soga
- Brain Research Institutes, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, 47500, Malaysia
| | - I S Parhar
- Brain Research Institutes, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Selangor, 47500, Malaysia
| | - P E Thompson
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, 3052, Australia
| |
Collapse
|
12
|
Huang AYT, Patra S, Chen HT, Kao CL, Simanek EE. Solid-Phase Synthesis of Libraries of Triazine Dendrimers and Orthogonal Staining Methods for Tracking Reactions on Resin. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Adela Y.-T. Huang
- Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; 100, Shih-Chuan 1st Rd. Kaohsiung 80708 Taiwan
| | - Subrata Patra
- Department of Chemistry; Texas Christian University; 2800 S. University Dr. Fort Worth Texas 76129 USA
| | - Hui-Ting Chen
- Department of Fragrance and Cosmetic Science; Kaohsiung Medical University; 100, Shih-Chuan 1st Rd. Kaohsiung 80708 Taiwan
| | - Chai-Lin Kao
- Department of Medicinal and Applied Chemistry; Kaohsiung Medical University; 100, Shih-Chuan 1st Rd. Kaohsiung 80708 Taiwan
- Department of Chemistry; National Sun Yat-sen University; 70, Lienhai Rd. Kaohsiung 80424 Taiwan
| | - Eric E. Simanek
- Department of Chemistry; Texas Christian University; 2800 S. University Dr. Fort Worth Texas 76129 USA
| |
Collapse
|
13
|
Friedmann MP, Torbeev V, Zelenay V, Sobol A, Greenwald J, Riek R. Towards Prebiotic Catalytic Amyloids Using High Throughput Screening. PLoS One 2015; 10:e0143948. [PMID: 26650386 PMCID: PMC4674085 DOI: 10.1371/journal.pone.0143948] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 11/11/2015] [Indexed: 02/07/2023] Open
Abstract
Enzymes are capable of directing complex stereospecific transformations and of accelerating reaction rates many orders of magnitude. As even the simplest known enzymes comprise thousands of atoms, the question arises as to how such exquisite catalysts evolved. A logical predecessor would be shorter peptides, but they lack the defined structure and size that are apparently necessary for enzyme functions. However, some very short peptides are able to assemble into amyloids, thereby forming a well-defined tertiary structure called the cross-β-sheet, which bestows unique properties upon the peptides. We have hypothesized that amyloids could have been the catalytically active precursor to modern enzymes. To test this hypothesis, we designed an amyloid peptide library that could be screened for catalytic activity. Our approach, amenable to high-throughput methodologies, allowed us to find several peptides and peptide mixtures that form amyloids with esterase activity. These results indicate that amyloids, with their stability in a wide range of conditions and their potential as catalysts with low sequence specificity, would indeed be fitting precursors to modern enzymes. Furthermore, our approach can be efficiently expanded upon in library size, screening conditions, and target activity to yield novel amyloid catalysts with potential applications in aqueous-organic mixtures, at high temperature and in other extreme conditions that could be advantageous for industrial applications.
Collapse
Affiliation(s)
- Michael P. Friedmann
- Laboratory of Physical Chemistry, Department of Chemistry, ETH Zürich, Zurich, Switzerland
| | - Vladimir Torbeev
- Laboratory of Organic Chemistry, Department of Chemistry, ETH Zürich, Zurich, Switzerland
| | - Viviane Zelenay
- Laboratory of Physical Chemistry, Department of Chemistry, ETH Zürich, Zurich, Switzerland
| | - Alexander Sobol
- Laboratory of Physical Chemistry, Department of Chemistry, ETH Zürich, Zurich, Switzerland
| | - Jason Greenwald
- Laboratory of Physical Chemistry, Department of Chemistry, ETH Zürich, Zurich, Switzerland
- * E-mail: (JG); (RR)
| | - Roland Riek
- Laboratory of Physical Chemistry, Department of Chemistry, ETH Zürich, Zurich, Switzerland
- * E-mail: (JG); (RR)
| |
Collapse
|
14
|
|
15
|
Ramos-Tomillero I, Rodríguez H, Albericio F. Tetrahydropyranyl, a nonaromatic acid-labile Cys protecting group for Fmoc peptide chemistry. Org Lett 2015; 17:1680-3. [PMID: 25764355 DOI: 10.1021/acs.orglett.5b00444] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Tetrahydropyranyl (Thp), which exploits the concept of being an S,O-acetal nonaromatic protecting group for cysteine, has been shown to be superior to Trt, Dpm, Acm, and StBu in solid-phase peptide synthesis using the Fmoc/tBu strategy. Thus, Cys racemization and C-terminal 3-(1-piperidinyl)alanine formation were minimized when the Cys was protected with Thp. This nonaromatic protecting group also improved the solubility of Cys-containing protected peptides.
Collapse
Affiliation(s)
- Iván Ramos-Tomillero
- †Institute for Research in Biomedicine, 08028 Barcelona, Spain.,‡Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
| | - Hortensia Rodríguez
- †Institute for Research in Biomedicine, 08028 Barcelona, Spain.,§School of Chemistry, Yachay Tech, Yachay City of Knowledge, 100199 Urcuqui, Ecuador
| | - Fernando Albericio
- †Institute for Research in Biomedicine, 08028 Barcelona, Spain.,‡Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain.,§School of Chemistry, Yachay Tech, Yachay City of Knowledge, 100199 Urcuqui, Ecuador.,∥CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, Barcelona Science Park, 08028 Barcelona, Spain.,⊥School of Chemistry, University of KwaZulu Natal, 4000 Durban, South Africa
| |
Collapse
|
16
|
Northfield SE, Mountford SJ, Wielens J, Liu M, Zhang L, Herzog H, Holliday ND, Scanlon MJ, Parker MW, Chalmers DK, Thompson PE. Propargyloxyproline Regio- and Stereoisomers for Click-Conjugation of Peptides: Synthesis and Application in Linear and Cyclic Peptides. Aust J Chem 2015. [DOI: 10.1071/ch15146] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The use of the click reaction for the introduction of conjugate groups, such as affinity or fluorescent labels, to a peptide for the study of peptide biochemistry and pharmacology is widespread. However, the nature and location of substituted 1,2,3-triazoles in peptide sequences may markedly affect conformation or binding as compared with native sequences. We have examined the preparation and application of propargyloxyproline (Pop) residues as a precursor to such peptide conjugates. Pop residues are available in a range of regio- and stereoisomers from hydroxyproline precursors and are readily prepared in Fmoc-protected form. They can be incorporated routinely in peptide synthesis and broadly retain the conformational properties of the parent proline containing peptides. This is exemplified by the preparation of biotin- and fluorophore-labelled peptides derived from linear and cyclic peptides.
Collapse
|
17
|
Ezhov RN, Metzel GA, Mukhina OA, Musselman CA, Kutateladze TG, Gustafson TP, Kutateladze AG. Photoactive Spatial Proximity Probes for Binding Pairs with Epigenetic Marks. J Photochem Photobiol A Chem 2014; 290:101-108. [PMID: 25197204 DOI: 10.1016/j.jphotochem.2014.06.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A new strategy for encoding polypeptide libraries with photolabile tags is developed. The photoassisted assay, based on conditional release of encoding tags only from bound pairs, can differentiate between peptides which have minor differences in a form of post-translational modifications with epigenetic marks. The encoding strategy is fully compatible with automated peptide synthesis. The encoding pendants are compact and do not perturb potential binding interactions.
Collapse
Affiliation(s)
- Roman N Ezhov
- Department of Chemistry and Biochemistry, University of Denver, Denver, CO 80208
| | - Greg A Metzel
- Department of Chemistry and Biochemistry, University of Denver, Denver, CO 80208
| | - Olga A Mukhina
- Department of Chemistry and Biochemistry, University of Denver, Denver, CO 80208
| | - Catherine A Musselman
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO 80045
| | - Tatiana G Kutateladze
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO 80045
| | - Tiffany P Gustafson
- Department of Chemistry and Biochemistry, University of Denver, Denver, CO 80208
| | - Andrei G Kutateladze
- Department of Chemistry and Biochemistry, University of Denver, Denver, CO 80208
| |
Collapse
|
18
|
Amrane MI, Chouikhi D, Badi N, Lutz JF. Synthesis of Well-Defined Polystyrene Rink Amide Soluble Supports and Their Use in Peptide Synthesis. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400347] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Meryem Imane Amrane
- Precision Macromolecular Chemistry Group; Institut Charles Sadron; UPR22-CNRS, 23 Rue de Loess; BP 84047 67034 Strasbourg cedex 2 France
- Laboratoire de chimie organic physique et macromoléculaire; University Djillali Liabes; PB 89 Sidi Bel Abbès Algeria
| | - Dalila Chouikhi
- Precision Macromolecular Chemistry Group; Institut Charles Sadron; UPR22-CNRS, 23 Rue de Loess; BP 84047 67034 Strasbourg cedex 2 France
- Laboratoire de Catalyse et Synthèse en Chimie Organique; Université Abou Bekr Belkaid; BP 119 Pole Imama Bât., B 13000 Tlemcen Algeria
| | - Nezha Badi
- Precision Macromolecular Chemistry Group; Institut Charles Sadron; UPR22-CNRS, 23 Rue de Loess; BP 84047 67034 Strasbourg cedex 2 France
| | - Jean-François Lutz
- Precision Macromolecular Chemistry Group; Institut Charles Sadron; UPR22-CNRS, 23 Rue de Loess; BP 84047 67034 Strasbourg cedex 2 France
| |
Collapse
|
19
|
Dagg AP, Huang Z, Marks MA, Zhou D, Chawla M, Tang ML. Synthetic control of isolated, single functional groups on silica surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:7098-7103. [PMID: 24856635 DOI: 10.1021/la501231v] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report control of the density of isolated, single functional groups in homogeneously mixed trichloroalkyl silanes on various silica surfaces. The functional groups are covalently bound to a silane derived from the Rink resin. This Rink-silane is reactive to any nucleophile. Control over the density of functional groups is achieved by diluting the immersion solution containing the Rink-silane with an inert silane, octadecyltrichlorsilane. The isolated nature of the functional groups is confirmed by the stochastic blinking of fluorescent single boron-dipyrromethane dyes imaged in total internal reflection geometry. The robust character of silane monolayers allows facile covalent binding and cleavage of molecular species from silica surfaces as well as general synthetic transformations to be conducted. This is shown by the covalent attachment and then cleavage of a naphthalene chromophore. This low-cost and scalable platform has great potential for use in sensing, molecular electronics, semiconductor processing, and the investigation of fundamental processes in catalysis and the kinetics of molecular association.
Collapse
Affiliation(s)
- Alexander P Dagg
- Department of Materials Science & Engineering and ‡Department of Chemistry, University of California, Riverside , Riverside, California 92521, United States
| | | | | | | | | | | |
Collapse
|
20
|
Stathopoulos P, Papas S, Sakka M, Tzakos AG, Tsikaris V. A rapid and efficient method for the synthesis of selectively S-Trt or S-Mmt protected Cys-containing peptides. Amino Acids 2014; 46:1367-76. [DOI: 10.1007/s00726-014-1696-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 02/12/2014] [Indexed: 11/28/2022]
|
21
|
Albertsen L, Østergaard S, Paulsson JF, Norrild JC, Strømgaard K. A parallel semisynthetic approach for structure-activity relationship studies of peptide YY. ChemMedChem 2013; 8:1505-13, 1422. [PMID: 23907926 DOI: 10.1002/cmdc.201300290] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Indexed: 11/08/2022]
Abstract
The gut hormone peptide YY (PYY) is postprandially secreted from enteroendocrine L cells and is involved in the regulation of energy homeostasis. The N-terminal truncated version PYY(3-36) decreases food intake and has potential as an anti-obesity agent. The anorectic effect of PYY(3-36) is mediated through Y₂ receptors in the hypothalamus, vagus, and brainstem regions, and it is well known that the C-terminal tetrapeptide sequence of PYY(3-36) is crucial for Y2 receptor activation. The aim of this work was to develop a semisynthetic methodology for the generation of a library of C-terminally modified PYY(3-36) analogues. By using an intein-based expression system, PYY(3-29) was generated as a C-terminal peptide α-thioester. Heptapeptides bearing an N-terminal cysteine and modifications at one of the four C-terminal positions were synthesized in a 96-well plate by parallel solid-phase synthesis. In the plate format, an array of [Ala30]PYY(3-36) analogues were generated by ligation, desulfurization, and subsequent solid-phase extraction. The generated analogues, in which either Arg33, Gln34, Arg35, or Tyr36 had been substituted with proteinogenic or non-proteinogenic amino acids, were tested in a functional Y₂ receptor assay. Generally, substitutions of Tyr36 were better tolerated than modifications of Arg33, Gln34, and Arg35. Two analogues showed significantly improved Y₂ receptor selectivity; therefore, these results could be used to design new drug candidates for the treatment of obesity.
Collapse
Affiliation(s)
- Louise Albertsen
- Department of Drug Design & Pharmacology, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | | | | | | | | |
Collapse
|
22
|
Stathopoulos P, Papas S, Pappas C, Mousis V, Sayyad N, Theodorou V, Tzakos AG, Tsikaris V. Side reactions in the SPPS of Cys-containing peptides. Amino Acids 2013; 44:1357-63. [DOI: 10.1007/s00726-013-1471-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 02/12/2013] [Indexed: 11/24/2022]
|
23
|
Affiliation(s)
- Vida Castro
- Institute for Research in Biomedicine, 08028-Barcelona, Spain, CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, PCB, 08028-Barcelona, Spain, Department of Organic Chemistry, University of Barcelona, 08028-Barcelona, Spain, and School of Chemistry, University of KwaZulu-Natal, 4001 Durban, South Africa
| | - Hortensia Rodriguez
- Institute for Research in Biomedicine, 08028-Barcelona, Spain, CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, PCB, 08028-Barcelona, Spain, Department of Organic Chemistry, University of Barcelona, 08028-Barcelona, Spain, and School of Chemistry, University of KwaZulu-Natal, 4001 Durban, South Africa
| | - Fernando Albericio
- Institute for Research in Biomedicine, 08028-Barcelona, Spain, CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, PCB, 08028-Barcelona, Spain, Department of Organic Chemistry, University of Barcelona, 08028-Barcelona, Spain, and School of Chemistry, University of KwaZulu-Natal, 4001 Durban, South Africa
| |
Collapse
|
24
|
Liu M, Mountford SJ, Zhang L, Lee IC, Herzog H, Thompson PE. Synthesis of BVD15 Peptide Analogues as Models for Radioligands in Tumour Imaging. Int J Pept Res Ther 2012. [DOI: 10.1007/s10989-012-9330-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
25
|
Sidorova MV, Az'muko AA, Pal'keeva ME, Molokoedov AS, Bushuev VN, Dvoriantsev SN, Shul'zhenko VS, Pelogeĭkina VS, Pisarenko OI, Bespalova ZD. [Synthesis and cardioprotective properties of apelin-12 and its structural analogs]. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2012; 38:40-51. [PMID: 22792704 DOI: 10.1134/s1068162012010177] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The apelin-12 and a number of its analogs, resistant to degradation of proteases, were synthesized by Fmoc- method of SPPS. By-products of synthesis were examined. It was found that serine hydroxyl group was sulfating during the final deprotection of apelin-12 (I) and its analogs. Sulfate moiety of Arg-protecting group transfer into hydroxyl group of Ser. Amount of by-product depends on presence of water in cleavage mixture. Furthermore, the final deprotection of amide analogs of apelin-12 (III, IV) is closed with formation of by-product--4-hydroxybenzylamide, its amount range on 20-8% on reaction mixture accordance HPLC data and also depend on composition of cleavage mixture. Effects of the synthesized peptides on recovery of cardiac function after ischemia were examined in a model of isolated perfused rat heart. Infusions of any of the peptides (I-V) before ischemia resulted in a significant improvement of contractile and pump function recovery compared to the control. Cardioptotective efficacy of the peptides increased in the following rank (I) < (II) = (III) < (IV) = (V).
Collapse
|
26
|
Abstract
Histone posttranslational modifications (PTMs) play a pivotal role in regulating the dynamics and function of chromatin. Supported by an increasing body of literature, histone PTMs such as methylation and acetylation function together in the context of a "histone code," which is read, or interpreted, by effector proteins that then drive a functional output in chromatin (e.g., gene transcription). A growing number of domains that interact with histones and/or their PTMs have been identified. While significant advances have been made in our understanding of how these domains interact with histones, a wide number of putative histone-binding motifs have yet to be characterized, and undoubtedly, novel domains will continue to be discovered. In this chapter, we provide a detailed method for the construction of combinatorially modified histone peptides, microarray fabrication using these peptides, and methods to characterize the interaction of effector proteins, antibodies, and the substrate specificity of histone-modifying enzymes. We discuss these methods in the context of other available technologies and provide a user-friendly approach to enable the exploration of histone-protein-enzyme interactions and function.
Collapse
Affiliation(s)
- Scott B. Rothbart
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Department of Biochemistry & Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Krzysztof Krajewski
- Department of Biochemistry & Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Brian D. Strahl
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Department of Biochemistry & Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Stephen M. Fuchs
- Department of Biology, Tufts University, Medford, Massachusetts, USA
| |
Collapse
|
27
|
Torres-García C, Díaz M, Blasi D, Farràs I, Fernández I, Ariza X, Farràs J, Lloyd-Williams P, Royo M, Nicolás E. Side Chain Anchoring of Tryptophan to Solid Supports Using a Dihydropyranyl Handle: Synthesis of Brevianamide F. Int J Pept Res Ther 2011. [DOI: 10.1007/s10989-011-9274-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
28
|
Roussa VD, Stathopoulou EM, Papamichael ND, Englezopoulos CV, Rousouli KI, Trypou P, Moussis V, Tellis CC, Katsouras CS, Tsikaris V, Tselepis AD, Michalis LK. A highly constrained cyclic (S,S)-CDC- peptide is a potent inhibitor of carotid artery thrombosis in rabbits. Platelets 2010; 22:361-70. [PMID: 21158497 DOI: 10.3109/09537104.2010.531795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Inhibition of platelet aggregation is indispensable for the treatment of acute arterial thrombotic episodes. We have previously reported the synthesis of a highly constrained cyclic peptide, that incorporates the -CDC- sequence, (S,S) PSRCDCR-NH(2), which potently inhibits aggregation and fibrinogen binding to human platelets in vitro. We have tested the safety and efficacy of the peptide on the electrically induced carotid artery thrombosis experimental rabbit model. The peptide's effects on carotid blood flow, thrombus weight, in vitro and ex vivo platelet aggregation, and bleeding and hemostatic parameters were evaluated. The peptide was administered via the femoral vein. Carotid blood flow was continuously monitored for 90 min after electrical thrombus formation. The peptide, at 12 mg/kg, prevented total artery occlusion and significantly preserved carotid artery's patency compared with placebo and eptifibatide. Furthermore, (S,S) PSRCDCR-NH(2) administration at 12 mg/kg reduced thrombus weight, whereas it inhibited ex vivo ADP, arachidonic acid (AA) and collagen-induced platelet aggregation. Moreover (S,S) PSRCDCR-NH(2) at 12 mg/kg presented significantly higher inhibitory effects on AA and collagen-induced ex vivo platelet aggregation compared to eptifibatide. The peptide at any dose did not affect the coagulation cascade, the bleeding times or the hemostatic response of the animals. Thus highly constrained cyclic peptides like (S,S) PSRCDCR-NH(2) that incorporate the -CDC- motif and fulfil certain conformational criteria represent novel compounds that potently inhibit thrombus formation, ex vivo platelet aggregation and carotid artery occlusion superiorly to other non-RGD peptides, such as YMESRADR, without causing hemorrhagic complications in a rabbit model of arterial thrombosis.
Collapse
|
29
|
Splith K, Neundorf I, Hu W, Peindy N'Dongo HW, Vasylyeva V, Merz K, Schatzschneider U. Influence of the metal complex-to-peptide linker on the synthesis and properties of bioactive CpMn(CO)3 peptide conjugates. Dalton Trans 2010; 39:2536-45. [PMID: 20179846 DOI: 10.1039/b916907e] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
By combining organometallic groups and peptides, a large number of conjugates with interesting new biological properties can be prepared. Especially, attachment to cell-penetrating peptides (CPP) that act as efficient cell delivery vehicles has come to the fore. However, the presence of the metal moiety in such systems can interfere with standard conjugate synthesis procedures which therefore need to be optimized for every new compound. In this work, we report on the preparation of six new cymantrene-sC18 peptide bioconjugates that were prepared by solid phase peptide synthesis (SPPS) techniques. The cymantrene complexes were chosen for their different linker to the peptide, to study the influence of the linker group on cellular uptake and cell viability of the conjugates. Interestingly, the attachment of the metal complex leads to a non-standard cleavage of the Rink amide linker used in the SPPS protocol under trifluoroacetic acid (TFA) treatment, resulting in peptide amides that are N-alkylated at the C-terminus. Furthermore, we found that depending on the type of cymantrene moiety attached, the formation of reactive carbocations which result from decomposition of the resin linker is facilitated and can alkylate the metal complex moiety. Both effects were analyzed by MS/MS studies and cleavage mixtures for efficient elimination of this byproduct formation were identified. Moreover, initial biological testing of the cytotoxicity of one of the bioconjugates gave promising results. Concentration-dependent cell viability studies of Cym1-sC18 on human MCF-7 breast adenocarcinoma cells gave an IC(50) value of 59.8 (+/- 6.7) microM and demonstrate their potential in anticancer chemotherapy.
Collapse
Affiliation(s)
- Katrin Splith
- Institut für Biochemie, Universität Leipzig, Brüderstr. 34, D-04103, Leipzig, Germany
| | | | | | | | | | | | | |
Collapse
|
30
|
Verdié P, Subra G, Averland-Petit MC, Amblard M, Martinez J. Solid-Phase Synthesis of 4-Methylcarboxy-1,4-benzodiazepine-2,5-diones. ACTA ACUST UNITED AC 2008; 10:869-74. [DOI: 10.1021/cc800085d] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Pascal Verdié
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS, Universités Montpellier 1 et 2, Faculté de Pharmacie, 15 Avenue Charles Flahault BP 14491, 34093 Montpellier Cedex 5, France, and Laboratoire de Chimie-Physique Macromoléculaire UMR 7568 CNRS, Université Nancy, 1 rue Grandville, B.P. 20451, 54001 Nancy Cedex 1, France
| | - Gilles Subra
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS, Universités Montpellier 1 et 2, Faculté de Pharmacie, 15 Avenue Charles Flahault BP 14491, 34093 Montpellier Cedex 5, France, and Laboratoire de Chimie-Physique Macromoléculaire UMR 7568 CNRS, Université Nancy, 1 rue Grandville, B.P. 20451, 54001 Nancy Cedex 1, France
| | - Marie-Christine Averland-Petit
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS, Universités Montpellier 1 et 2, Faculté de Pharmacie, 15 Avenue Charles Flahault BP 14491, 34093 Montpellier Cedex 5, France, and Laboratoire de Chimie-Physique Macromoléculaire UMR 7568 CNRS, Université Nancy, 1 rue Grandville, B.P. 20451, 54001 Nancy Cedex 1, France
| | - Muriel Amblard
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS, Universités Montpellier 1 et 2, Faculté de Pharmacie, 15 Avenue Charles Flahault BP 14491, 34093 Montpellier Cedex 5, France, and Laboratoire de Chimie-Physique Macromoléculaire UMR 7568 CNRS, Université Nancy, 1 rue Grandville, B.P. 20451, 54001 Nancy Cedex 1, France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron (IBMM) UMR 5247 CNRS, Universités Montpellier 1 et 2, Faculté de Pharmacie, 15 Avenue Charles Flahault BP 14491, 34093 Montpellier Cedex 5, France, and Laboratoire de Chimie-Physique Macromoléculaire UMR 7568 CNRS, Université Nancy, 1 rue Grandville, B.P. 20451, 54001 Nancy Cedex 1, France
| |
Collapse
|
31
|
Ruczyński J, Lewandowska B, Mucha P, Rekowski P. Problem of aspartimide formation in Fmoc-based solid-phase peptide synthesis using Dmab group to protect side chain of aspartic acid. J Pept Sci 2008; 14:335-41. [DOI: 10.1002/psc.941] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
32
|
Papas S, Akoumianaki T, Kalogiros C, Hadjiarapoglou L, Theodoropoulos PA, Tsikaris V. Synthesis and antitumor activity of peptide-paclitaxel conjugates. J Pept Sci 2007; 13:662-71. [PMID: 17787026 DOI: 10.1002/psc.899] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Paclitaxel (Pac) is the most important anticancer drug used mainly in treatment of breast, lung, and ovarian cancer and is being investigated for use as a single agent for treatment of lung cancer, advanced head and neck cancers, and adenocarcinomas of the upper gastrointestinal tract. In this work, we present the synthesis of five 2'-paclitaxel-substituted analogs in which paclitaxel was covalently bound to peptides or as multiple copies to synthetic carriers. Ac-Cys(CH(2)CO-2'-Pac)-Arg-Gly-Asp-Arg-NH(2), Folyl-Cys(CH(2)CO-2'-Pac)-Arg-Gly-Asp-Ser-NH(2), Ac-[Lys-Aib-Cys(CH(2)CO-2'-Pac)](2)-NH(2), Ac-[Lys-Aib-Cys(CH(2)CO-2'-Pac)](3)-NH(2) and Ac-[Lys-Aib-Cys(CH(2)CO-2'-Pac)](4)-NH(2) were synthesized using 2'-halogeno-acetylated paclitaxel derivatives. Paclitaxel conjugates showed greater solubility in water than paclitaxel and inhibited the proliferation of human breast, prostate, and cervical cancer cell lines. Although all synthesized compounds had an antiproliferative activity, the Ac-[Lys-Aib-Cys(CH(2)CO-2'-Pac)](4)-NH(2) derivative showed improved biological activity in comparison with paclitaxel in cervical and prostate human cancer cells.
Collapse
Affiliation(s)
- Serafim Papas
- Department of Chemistry, University of Ioannina, GR-45110 Ioannina, Greece
| | | | | | | | | | | |
Collapse
|