1
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Yano Y, Fukuoka R, Maturana AD, Ohdachi SD, Kita M. Mammalian neurotoxins, Blarina paralytic peptides, cause hyperpolarization of human T-type Ca channel hCa v3.2 activation. J Biol Chem 2023; 299:105066. [PMID: 37468103 PMCID: PMC10493266 DOI: 10.1016/j.jbc.2023.105066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/05/2023] [Accepted: 07/14/2023] [Indexed: 07/21/2023] Open
Abstract
Among the rare venomous mammals, the short-tailed shrew Blarina brevicauda has been suggested to produce potent neurotoxins in its saliva to effectively capture prey. Several kallikrein-like lethal proteases have been identified, but the active substances of B. brevicauda remained unclear. Here, we report Blarina paralytic peptides (BPPs) 1 and 2 isolated from its submaxillary glands. Synthetic BPP2 showed mealworm paralysis and a hyperpolarization shift (-11 mV) of a human T-type Ca2+ channel (hCav3.2) activation. The amino acid sequences of BPPs were similar to those of synenkephalins, which are precursors of brain opioid peptide hormones that are highly conserved among mammals. However, BPPs rather resembled centipede neurotoxic peptides SLPTXs in terms of disulfide bond connectivity and stereostructure. Our results suggested that the neurotoxin BPPs were the result of convergent evolution as homologs of nontoxic endogenous peptides that are widely conserved in mammals. This finding is of great interest from the viewpoint of the chemical evolution of vertebrate venoms.
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Affiliation(s)
- Yusuke Yano
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Ryo Fukuoka
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Andres D Maturana
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Satoshi D Ohdachi
- Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
| | - Masaki Kita
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan.
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2
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Wang C, Xia S, Wang X, Li Y, Wang H, Xiang R, Jiang Q, Lan Q, Liang R, Li Q, Huo S, Lu L, Wang Q, Yu F, Liu K, Jiang S. Supercoiling Structure-Based Design of a Trimeric Coiled-Coil Peptide with High Potency against HIV-1 and Human β-Coronavirus Infection. J Med Chem 2022; 65:2809-2819. [PMID: 33929200 PMCID: PMC8117781 DOI: 10.1021/acs.jmedchem.1c00258] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Indexed: 12/15/2022]
Abstract
Hexameric structure formation through packing of three C-terminal helices and an N-terminal trimeric coiled-coil core has been proposed as a general mechanism of class I enveloped virus entry. In this process, the C-terminal helical repeat (HR2) region of viral membrane fusion proteins becomes transiently exposed and accessible to N-terminal helical repeat (HR1) trimer-based fusion inhibitors. Herein, we describe a mimetic of the HIV-1 gp41 HR1 trimer, N3G, as a promising therapeutic against HIV-1 infection. Surprisingly, we found that in addition to protection against HIV-1 infection, N3G was also highly effective in inhibiting infection of human β-coronaviruses, including MERS-CoV, HCoV-OC43, and SARS-CoV-2, possibly by binding the HR2 region in the spike protein of β-coronaviruses to block their hexameric structure formation. These studies demonstrate the potential utility of anti-HIV-1 HR1 peptides in inhibiting human β-coronavirus infection. Moreover, this strategy could be extended to the design of broad-spectrum antivirals based on the supercoiling structure of peptides.
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Affiliation(s)
- Chao Wang
- State Key Laboratory of Toxicology and Medical
Countermeasures, Beijing Institute of Pharmacology and
Toxicology, 27 Tai-Ping Road, Beijing 100850,
China
| | - Shuai Xia
- Key Laboratory of Medical Molecular Virology
(MOE/NHC/CAMS), School of Basic Medical Sciences & Shanghai Public Health Clinical
Center, Fudan University, 130 Dong An Road, Shanghai 200032,
China
| | - Xinling Wang
- Key Laboratory of Medical Molecular Virology
(MOE/NHC/CAMS), School of Basic Medical Sciences & Shanghai Public Health Clinical
Center, Fudan University, 130 Dong An Road, Shanghai 200032,
China
| | - Yue Li
- State Key Laboratory of Toxicology and Medical
Countermeasures, Beijing Institute of Pharmacology and
Toxicology, 27 Tai-Ping Road, Beijing 100850,
China
| | - Huan Wang
- State Key Laboratory of Toxicology and Medical
Countermeasures, Beijing Institute of Pharmacology and
Toxicology, 27 Tai-Ping Road, Beijing 100850,
China
| | - Rong Xiang
- Hebei Center for Wildlife Health, College of Life
Sciences, Hebei Agricultural University, Baoding 071001,
China
| | - Qinwen Jiang
- Key Laboratory of Structure-based Drug Design &
Discovery of the Ministry of Education, Shenyang Pharmaceutical
University, Shenyang 110016, China
| | - Qiaoshuai Lan
- Key Laboratory of Medical Molecular Virology
(MOE/NHC/CAMS), School of Basic Medical Sciences & Shanghai Public Health Clinical
Center, Fudan University, 130 Dong An Road, Shanghai 200032,
China
| | - Ruiying Liang
- Hebei Center for Wildlife Health, College of Life
Sciences, Hebei Agricultural University, Baoding 071001,
China
| | - Qing Li
- State Key Laboratory of Toxicology and Medical
Countermeasures, Beijing Institute of Pharmacology and
Toxicology, 27 Tai-Ping Road, Beijing 100850,
China
| | - Shanshan Huo
- Hebei Center for Wildlife Health, College of Life
Sciences, Hebei Agricultural University, Baoding 071001,
China
| | - Lu Lu
- Key Laboratory of Medical Molecular Virology
(MOE/NHC/CAMS), School of Basic Medical Sciences & Shanghai Public Health Clinical
Center, Fudan University, 130 Dong An Road, Shanghai 200032,
China
| | - Qian Wang
- Key Laboratory of Medical Molecular Virology
(MOE/NHC/CAMS), School of Basic Medical Sciences & Shanghai Public Health Clinical
Center, Fudan University, 130 Dong An Road, Shanghai 200032,
China
| | - Fei Yu
- Hebei Center for Wildlife Health, College of Life
Sciences, Hebei Agricultural University, Baoding 071001,
China
| | - Keliang Liu
- State Key Laboratory of Toxicology and Medical
Countermeasures, Beijing Institute of Pharmacology and
Toxicology, 27 Tai-Ping Road, Beijing 100850,
China
| | - Shibo Jiang
- Key Laboratory of Medical Molecular Virology
(MOE/NHC/CAMS), School of Basic Medical Sciences & Shanghai Public Health Clinical
Center, Fudan University, 130 Dong An Road, Shanghai 200032,
China
- Lindsley F. Kimball Research Institute,
New York Blood Center, New York, New York 10065,
United States
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3
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Montnach J, Blömer LA, Lopez L, Filipis L, Meudal H, Lafoux A, Nicolas S, Chu D, Caumes C, Béroud R, Jopling C, Bosmans F, Huchet C, Landon C, Canepari M, De Waard M. In vivo spatiotemporal control of voltage-gated ion channels by using photoactivatable peptidic toxins. Nat Commun 2022; 13:417. [PMID: 35058427 PMCID: PMC8776733 DOI: 10.1038/s41467-022-27974-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 12/20/2021] [Indexed: 12/11/2022] Open
Abstract
Photoactivatable drugs targeting ligand-gated ion channels open up new opportunities for light-guided therapeutic interventions. Photoactivable toxins targeting ion channels have the potential to control excitable cell activities with low invasiveness and high spatiotemporal precision. As proof-of-concept, we develop HwTxIV-Nvoc, a UV light-cleavable and photoactivatable peptide that targets voltage-gated sodium (NaV) channels and validate its activity in vitro in HEK293 cells, ex vivo in brain slices and in vivo on mice neuromuscular junctions. We find that HwTxIV-Nvoc enables precise spatiotemporal control of neuronal NaV channel function under all conditions tested. By creating multiple photoactivatable toxins, we demonstrate the broad applicability of this toxin-photoactivation technology.
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Affiliation(s)
- Jérôme Montnach
- l'institut du thorax, INSERM, CNRS, UNIV NANTES, F-44007, Nantes, France
- Laboratory of Excellence Ion Channels, Science & Therapeutics, F-06560, Valbonne, France
| | - Laila Ananda Blömer
- Laboratory of Excellence Ion Channels, Science & Therapeutics, F-06560, Valbonne, France
- Laboratoire Interdisciplinaire de Physique, Université Grenoble Alpes, CNRS UMR 5588, 38402, St Martin d'Hères, cedex, France
| | - Ludivine Lopez
- l'institut du thorax, INSERM, CNRS, UNIV NANTES, F-44007, Nantes, France
- Laboratory of Excellence Ion Channels, Science & Therapeutics, F-06560, Valbonne, France
- Smartox Biotechnology, 6 rue des Platanes, F-38120, Saint-Egrève, France
| | - Luiza Filipis
- Laboratory of Excellence Ion Channels, Science & Therapeutics, F-06560, Valbonne, France
- Laboratoire Interdisciplinaire de Physique, Université Grenoble Alpes, CNRS UMR 5588, 38402, St Martin d'Hères, cedex, France
| | - Hervé Meudal
- Center for Molecular Biophysics, CNRS, rue Charles Sadron, CS 80054, Orléans, 45071, France
| | - Aude Lafoux
- Therassay Platform, IRS2-Université de Nantes, Nantes, France
| | - Sébastien Nicolas
- l'institut du thorax, INSERM, CNRS, UNIV NANTES, F-44007, Nantes, France
- Laboratory of Excellence Ion Channels, Science & Therapeutics, F-06560, Valbonne, France
| | - Duong Chu
- Queen's University Faculty of Medicine, Kingston, ON, Canada
| | - Cécile Caumes
- Smartox Biotechnology, 6 rue des Platanes, F-38120, Saint-Egrève, France
| | - Rémy Béroud
- Smartox Biotechnology, 6 rue des Platanes, F-38120, Saint-Egrève, France
| | - Chris Jopling
- Institut de Génomique Fonctionnelle, 141 rue de la Cardonille, 34094, Montpellier, France
| | - Frank Bosmans
- Department of Basic and Applied Medical Sciences, Ghent University, Ghent, Belgium
| | - Corinne Huchet
- Therassay Platform, IRS2-Université de Nantes, Nantes, France
| | - Céline Landon
- Center for Molecular Biophysics, CNRS, rue Charles Sadron, CS 80054, Orléans, 45071, France
| | - Marco Canepari
- Laboratory of Excellence Ion Channels, Science & Therapeutics, F-06560, Valbonne, France
- Laboratoire Interdisciplinaire de Physique, Université Grenoble Alpes, CNRS UMR 5588, 38402, St Martin d'Hères, cedex, France
| | - Michel De Waard
- l'institut du thorax, INSERM, CNRS, UNIV NANTES, F-44007, Nantes, France.
- Laboratory of Excellence Ion Channels, Science & Therapeutics, F-06560, Valbonne, France.
- Smartox Biotechnology, 6 rue des Platanes, F-38120, Saint-Egrève, France.
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4
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Silva F, D’Onofrio A, Mendes C, Pinto C, Marques A, Campello MPC, Oliveira MC, Raposinho P, Belchior A, Di Maria S, Marques F, Cruz C, Carvalho J, Paulo A. Radiolabeled Gold Nanoseeds Decorated with Substance P Peptides: Synthesis, Characterization and In Vitro Evaluation in Glioblastoma Cellular Models. Int J Mol Sci 2022; 23:ijms23020617. [PMID: 35054798 PMCID: PMC8775581 DOI: 10.3390/ijms23020617] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 12/31/2021] [Accepted: 01/03/2022] [Indexed: 02/07/2023] Open
Abstract
Despite some progress, the overall survival of patients with glioblastoma (GBM) remains extremely poor. In this context, there is a pressing need to develop innovative therapy strategies for GBM, namely those based on nanomedicine approaches. Towards this goal, we have focused on nanoparticles (AuNP-SP and AuNP-SPTyr8) with a small gold core (ca. 4 nm), carrying DOTA chelators and substance P (SP) peptides. These new SP-containing AuNPs were characterized by a variety of analytical techniques, including TEM and DLS measurements and UV-vis and CD spectroscopy, which proved their high in vitro stability and poor tendency to interact with plasma proteins. Their labeling with diagnostic and therapeutic radionuclides was efficiently performed by DOTA complexation with the trivalent radiometals 67Ga and 177Lu or by electrophilic radioiodination with 125I of the tyrosyl residue in AuNP-SPTyr8. Cellular studies of the resulting radiolabeled AuNPs in NKR1-positive GBM cells (U87, T98G and U373) have shown that the presence of the SP peptides has a crucial and positive impact on their internalization by the tumor cells. Consistently, 177Lu-AuNP-SPTyr8 showed more pronounced radiobiological effects in U373 cells when compared with the non-targeted congener 177Lu-AuNP-TDOTA, as assessed by cell viability and clonogenic assays and corroborated by Monte Carlo microdosimetry simulations.
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Affiliation(s)
- Francisco Silva
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (A.D.); (C.M.); (C.P.); (A.M.); (M.P.C.C.); (M.C.O.); (P.R.); (A.B.); (S.D.M.); (F.M.)
- Correspondence: (F.S.); (A.P.)
| | - Alice D’Onofrio
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (A.D.); (C.M.); (C.P.); (A.M.); (M.P.C.C.); (M.C.O.); (P.R.); (A.B.); (S.D.M.); (F.M.)
| | - Carolina Mendes
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (A.D.); (C.M.); (C.P.); (A.M.); (M.P.C.C.); (M.C.O.); (P.R.); (A.B.); (S.D.M.); (F.M.)
| | - Catarina Pinto
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (A.D.); (C.M.); (C.P.); (A.M.); (M.P.C.C.); (M.C.O.); (P.R.); (A.B.); (S.D.M.); (F.M.)
| | - Ana Marques
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (A.D.); (C.M.); (C.P.); (A.M.); (M.P.C.C.); (M.C.O.); (P.R.); (A.B.); (S.D.M.); (F.M.)
| | - Maria Paula Cabral Campello
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (A.D.); (C.M.); (C.P.); (A.M.); (M.P.C.C.); (M.C.O.); (P.R.); (A.B.); (S.D.M.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal
| | - Maria Cristina Oliveira
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (A.D.); (C.M.); (C.P.); (A.M.); (M.P.C.C.); (M.C.O.); (P.R.); (A.B.); (S.D.M.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal
| | - Paula Raposinho
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (A.D.); (C.M.); (C.P.); (A.M.); (M.P.C.C.); (M.C.O.); (P.R.); (A.B.); (S.D.M.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal
| | - Ana Belchior
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (A.D.); (C.M.); (C.P.); (A.M.); (M.P.C.C.); (M.C.O.); (P.R.); (A.B.); (S.D.M.); (F.M.)
| | - Salvatore Di Maria
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (A.D.); (C.M.); (C.P.); (A.M.); (M.P.C.C.); (M.C.O.); (P.R.); (A.B.); (S.D.M.); (F.M.)
| | - Fernanda Marques
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (A.D.); (C.M.); (C.P.); (A.M.); (M.P.C.C.); (M.C.O.); (P.R.); (A.B.); (S.D.M.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal
| | - Carla Cruz
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; (C.C.); (J.C.)
| | - Josué Carvalho
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; (C.C.); (J.C.)
| | - António Paulo
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Campus Tecnológico e Nuclear, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal; (A.D.); (C.M.); (C.P.); (A.M.); (M.P.C.C.); (M.C.O.); (P.R.); (A.B.); (S.D.M.); (F.M.)
- Departamento de Engenharia e Ciências Nucleares, Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, Km 139.7, 2695-066 Bobadela LRS, Portugal
- Correspondence: (F.S.); (A.P.)
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5
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Kolasa M, Galita G, Majsterek I, Kucharska E, Czerczak K, Wasko J, Becht A, Fraczyk J, Gajda A, Pietrzak L, Szymanski L, Krakowiak A, Draczynski Z, Kolesinska B. Screening of Self-Assembling of Collagen IV Fragments into Stable Structures Potentially Useful in Regenerative Medicine. Int J Mol Sci 2021; 22:13584. [PMID: 34948383 PMCID: PMC8708666 DOI: 10.3390/ijms222413584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/03/2021] [Accepted: 12/14/2021] [Indexed: 11/17/2022] Open
Abstract
The aim of the research was to check whether it is possible to use fragments of type IV collagen to obtain, as a result of self-assembling, stable spatial structures that could be used to prepare new materials useful in regenerative medicine. Collagen IV fragments were obtained by using DMT/NMM/TosO- as a coupling reagent. The ability to self-organize and form stable spatial structures was tested by the CD method and microscopic techniques. Biological studies covered: resazurin assay (cytotoxicity assessment) on BJ, BJ-5TA and C2C12 cell lines; an alkaline version of the comet assay (genotoxicity), Biolegend Legendplex human inflammation panel 1 assay (SC cell lines, assessment of the inflammation activity) and MTT test to determine the cytotoxicity of the porous materials based on collagen IV fragments. It was found that out of the pool of 37 fragments (peptides 1-33 and 2.1-2.4) reconstructing the outer sphere of collagen IV, nine fragments (peptides: 2, 4, 5, 6, 14, 15, 25, 26 and 30), as a result of self-assembling, form structures mimicking the structure of the triple helix of native collagens. The stability of spatial structures formed as a result of self-organization at temperatures of 4 °C, 20 °C, and 40 °C was found. The application of the MST method allowed us to determine the Kd of binding of selected fragments of collagen IV to ITGα1β1. The stability of the spatial structures of selected peptides made it possible to obtain porous materials based on their equimolar mixture. The formation of the porous materials was found for cross-linked structures and the material stabilized only by weak interactions. All tested peptides are non-cytotoxic against all tested cell lines. Selected peptides also showed no genotoxicity and no induction of immune system responses. Research on the use of porous materials based on fragments of type IV collagen, able to form stable spatial structures as scaffolds useful in regenerative medicine, will be continued.
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Affiliation(s)
- Marcin Kolasa
- General Command of the Polish Armed Forces, Medical Division, Zwirki i Wigury 103/105, 00-912 Warsaw, Poland;
| | - Grzegorz Galita
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Narutowicza 60, 90-136 Lodz, Poland; (G.G.); (I.M.)
| | - Ireneusz Majsterek
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, Narutowicza 60, 90-136 Lodz, Poland; (G.G.); (I.M.)
| | - Ewa Kucharska
- Department Geriatrics and Social Work, Jesuit University Ignatianum in Cracow, Kopernika 26, 31-501 Krakow, Poland;
| | - Katarzyna Czerczak
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (K.C.); (J.W.); (A.B.); (J.F.); (A.G.)
| | - Joanna Wasko
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (K.C.); (J.W.); (A.B.); (J.F.); (A.G.)
| | - Angelika Becht
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (K.C.); (J.W.); (A.B.); (J.F.); (A.G.)
| | - Justyna Fraczyk
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (K.C.); (J.W.); (A.B.); (J.F.); (A.G.)
| | - Anna Gajda
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (K.C.); (J.W.); (A.B.); (J.F.); (A.G.)
| | - Lukasz Pietrzak
- Institute of Mechatronics and Information Systems, Faculty of Electrical, Electronic, Computer and Control Engineering, Lodz University of Technology, Stefanowskiego 18/22, 90-924 Lodz, Poland; (L.P.); (L.S.)
| | - Lukasz Szymanski
- Institute of Mechatronics and Information Systems, Faculty of Electrical, Electronic, Computer and Control Engineering, Lodz University of Technology, Stefanowskiego 18/22, 90-924 Lodz, Poland; (L.P.); (L.S.)
| | - Agnieszka Krakowiak
- Centre of Molecular and Macromolecular Studies Polish Academy of Sciences, Department of Bioorganic Chemistry, Sienkiewicza 112, 90-363 Lodz, Poland;
| | - Zbigniew Draczynski
- Institute of Material Sciences of Textiles and Polymer Composites, Faculty of Material Technologies and Textile Design, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland;
| | - Beata Kolesinska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland; (K.C.); (J.W.); (A.B.); (J.F.); (A.G.)
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6
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Huhmann S, Nyakatura EK, Rohrhofer A, Moschner J, Schmidt B, Eichler J, Roth C, Koksch B. Systematic Evaluation of Fluorination as Modification for Peptide-Based Fusion Inhibitors against HIV-1 Infection. Chembiochem 2021; 22:3443-3451. [PMID: 34605595 PMCID: PMC9297971 DOI: 10.1002/cbic.202100417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 10/04/2021] [Indexed: 01/01/2023]
Abstract
With the emergence of novel viruses, the development of new antivirals is more urgent than ever. A key step in human immunodeficiency virus type 1 (HIV-1) infection is six-helix bundle formation within the envelope protein subunit gp41. Selective disruption of bundle formation by peptides has been shown to be effective; however, these drugs, exemplified by T20, are prone to rapid clearance from the patient. The incorporation of non-natural amino acids is known to improve these pharmacokinetic properties. Here, we evaluate a peptide inhibitor in which a critical Ile residue is replaced by fluorinated analogues. We characterized the influence of the fluorinated analogues on the biophysical properties of the peptide. Furthermore, we show that the fluorinated peptides can block HIV-1 infection of target cells at nanomolar levels. These findings demonstrate that fluorinated amino acids are appropriate tools for the development of novel peptide therapeutics.
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Affiliation(s)
- Susanne Huhmann
- Freie Universität BerlinDepartment of Biology, Chemistry and PharmacyInstitute of Chemistry and BiochemistryArnimallee 2014195BerlinGermany
| | - Elisabeth K. Nyakatura
- Freie Universität BerlinDepartment of Biology, Chemistry and PharmacyInstitute of Chemistry and BiochemistryArnimallee 2014195BerlinGermany
- Antibody Engineering Tri-Institutional Therapeutics Discovery Institute417 East 68th Street, 19 Floor North, P: 646-888-2003New YorkNY 10021USA
| | - Anette Rohrhofer
- Institute of Clinical Microbiology and HygieneRegensburg University HospitalFranz-Josef-Strauß-Allee 1193053RegensburgGermany
| | - Johann Moschner
- Freie Universität BerlinDepartment of Biology, Chemistry and PharmacyInstitute of Chemistry and BiochemistryArnimallee 2014195BerlinGermany
| | - Barbara Schmidt
- Institute of Clinical Microbiology and HygieneRegensburg University HospitalFranz-Josef-Strauß-Allee 1193053RegensburgGermany
| | - Jutta Eichler
- Friedrich-Alexander-Universität Erlangen-NürnbergDepartment Chemie und PharmazieNikolaus-Fiebiger-Str. 1091058ErlangenGermany
| | - Christian Roth
- Max Planck Institute of Colloids and InterfacesBiomolecular SystemsArnimallee 2214195BerlinGermany
| | - Beate Koksch
- Freie Universität BerlinDepartment of Biology, Chemistry and PharmacyInstitute of Chemistry and BiochemistryArnimallee 2014195BerlinGermany
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7
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Suzuki S, Sawada T, Serizawa T. Identification of Water-Soluble Polymers through Discrimination of Multiple Optical Signals from a Single Peptide Sensor. ACS Appl Mater Interfaces 2021; 13:55978-55987. [PMID: 34735134 DOI: 10.1021/acsami.1c11794] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The pollution of water environments is a worldwide concern. Not only marine pollution by plastic litter, including microplastics, but also the spillage of water-soluble synthetic polymers in wastewater have recently gained increasing attention due to their potential risks to soil and water environments. However, conventional methods to identify polymers dissolved in water are laborious and time-consuming. Here, we propose a simple approach to identify synthetic polymers dissolved in water using a peptide-based molecular sensor with a fluorophore unit. Supervised machine learning of multiple fluorescence signals from the sensor, which specifically or nonspecifically interacted with the polymers, was applied for polymer classification as a proof of principle demonstration. Aqueous solutions containing different polymers or multiple polymer species with different mixture ratios were identified successfully. We found that fluorophore-introduced biomolecular sensors have great potential to provide discriminative information regarding water-soluble polymers. Our approach based on the discrimination of multiple optical signals of water-soluble polymers from peptide-based molecular sensors through machine learning will be applicable to next-generation sensing systems for polymers in wastewater or natural environments.
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Affiliation(s)
- Seigo Suzuki
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H121 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Toshiki Sawada
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H121 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
- Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi-shi, Saitama 332-0012, Japan
| | - Takeshi Serizawa
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H121 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
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8
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Moussaron A, Jouan-Hureaux V, Collet C, Pierson J, Thomas N, Choulier L, Veran N, Doyen M, Arnoux P, Maskali F, Dumas D, Acherar S, Barberi-Heyob M, Frochot C. Preliminary Study of New Gallium-68 Radiolabeled Peptide Targeting NRP-1 to Detect Brain Metastases by Positron Emission Tomography. Molecules 2021; 26:7273. [PMID: 34885871 PMCID: PMC8659110 DOI: 10.3390/molecules26237273] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/11/2021] [Accepted: 11/23/2021] [Indexed: 12/11/2022] Open
Abstract
Due to their very poor prognosis and a fatal outcome, secondary brain tumors are one of the biggest challenges in oncology today. From the point of view of the early diagnosis of these brain micro- and macro-tumors, the sensitivity and specificity of the diagnostic tools constitute an obstacle. Molecular imaging, such as Positron Emission Tomography (PET), is a promising technique but remains limited in the search for cerebral localizations, given the commercially available radiotracers. Indeed, the [18F]FDG PET remains constrained by the physiological fixation of the cerebral cortex, which hinders the visualization of cerebral metastases. Tumor angiogenesis is recognized as a crucial phenomenon in the progression of malignant tumors and is correlated with overexpression of the neuropilin-1 (NRP-1) receptor. Here, we describe the synthesis and the photophysical properties of the new gallium-68 radiolabeled peptide to target NRP-1. The KDKPPR peptide was coupled with gallium-68 anchored into a bifunctional NODAGA chelating agent, as well as Cy5 for fluorescence detection. The Cy5 absorbance spectra did not change, whereas the molar extinction coefficient (ε) decreased drastically. An enhancement of the fluorescence quantum yield (φF) could be observed due to the better water solubility of Cy5. [68Ga]Ga-NODAGA-K(Cy5)DKPPR was radiosynthesized efficiently, presented hydrophilic properties (log D = -1.86), and had high in vitro stability (>120 min). The molecular affinity and the cytotoxicity of this new chelated radiotracer were evaluated in vitro on endothelial cells (HUVEC) and MDA-MB-231 cancer cells (hormone-independent and triple-negative line) and in vivo on a brain model of metastasis in a nude rat using the MDA-MB-231 cell line. No in vitro toxicity has been observed. The in vivo preliminary experiments showed promising results, with a high contrast between the healthy brain and metastatic foci for [68Ga]Ga-NODAGA-K(Cy5)DKPPR.
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Affiliation(s)
- Albert Moussaron
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France; (A.M.); (P.A.)
| | - Valérie Jouan-Hureaux
- Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France; (V.J.-H.); (J.P.); (N.T.); (M.B.-H.)
| | - Charlotte Collet
- Nancyclotep Molecular Imaging Platform, F-54500 Vandœuvre-lès-Nancy, France; (C.C.); (N.V.); (M.D.); (F.M.)
- Université de Lorraine, INSERM, U1254, IADI, F-54500 Vandœuvre-lès-Nancy, France
| | - Julien Pierson
- Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France; (V.J.-H.); (J.P.); (N.T.); (M.B.-H.)
| | - Noémie Thomas
- Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France; (V.J.-H.); (J.P.); (N.T.); (M.B.-H.)
| | | | - Nicolas Veran
- Nancyclotep Molecular Imaging Platform, F-54500 Vandœuvre-lès-Nancy, France; (C.C.); (N.V.); (M.D.); (F.M.)
| | - Matthieu Doyen
- Nancyclotep Molecular Imaging Platform, F-54500 Vandœuvre-lès-Nancy, France; (C.C.); (N.V.); (M.D.); (F.M.)
- Université de Lorraine, INSERM, U1254, IADI, F-54500 Vandœuvre-lès-Nancy, France
| | - Philippe Arnoux
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France; (A.M.); (P.A.)
| | - Fatiha Maskali
- Nancyclotep Molecular Imaging Platform, F-54500 Vandœuvre-lès-Nancy, France; (C.C.); (N.V.); (M.D.); (F.M.)
| | | | - Samir Acherar
- Université de Lorraine, CNRS, LCPM, F-54000 Nancy, France;
| | - Muriel Barberi-Heyob
- Université de Lorraine, CNRS, CRAN, F-54000 Nancy, France; (V.J.-H.); (J.P.); (N.T.); (M.B.-H.)
| | - Céline Frochot
- Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France; (A.M.); (P.A.)
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9
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Tan Y, Wu J, Song L, Zhang M, Hipolito CJ, Wu C, Wang S, Zhang Y, Yin Y. Merging the Versatile Functionalities of Boronic Acid with Peptides. Int J Mol Sci 2021; 22:ijms222312958. [PMID: 34884766 PMCID: PMC8657650 DOI: 10.3390/ijms222312958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 11/16/2022] Open
Abstract
Peptides inherently feature the favorable properties of being easily synthesized, water-soluble, biocompatible, and typically non-toxic. Thus, boronic acid has been widely integrated with peptides with the goal of discovering peptide ligands with novel biological activities, and this effort has led to broad applications. Taking the integration between boronic acid and peptide as a starting point, we provide an overview of the latest research advances and highlight the versatile and robust functionalities of boronic acid. In this review, we summarize the diverse applications of peptide boronic acids in medicinal chemistry and chemical biology, including the identification of covalent reversible enzyme inhibitors, recognition, and detection of glycans on proteins or cancer cell surface, delivery of siRNAs, development of pH responsive devices, and recognition of RNA or bacterial surfaces. Additionally, we discuss boronic acid-mediated peptide cyclization and peptide modifications, as well as the facile chemical synthesis of peptide boronic acids, which paved the way for developing a growing number of peptide boronic acids.
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Affiliation(s)
- Yahong Tan
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
| | - Junjie Wu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
| | - Lulu Song
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
| | - Mengmeng Zhang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
| | - Christopher John Hipolito
- Screening & Compound Profiling, Quantitative Biosciences, Merck & Co., Inc., Kenilworth, NJ 07033, USA;
| | - Changsheng Wu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
| | - Siyuan Wang
- Department of Medicinal Chemistry, College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, China
- Correspondence: (S.W.); (Y.Y.)
| | - Youming Zhang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
| | - Yizhen Yin
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China; (Y.T.); (J.W.); (L.S.); (M.Z.); (C.W.); (Y.Z.)
- Correspondence: (S.W.); (Y.Y.)
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10
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Abstract
Self-assembly of high-aspect-ratio filaments containing β-sheets has attracted much attention due to potential use in bioengineering and biomedicine. However, precisely predicting the assembled morphologies remains a grand challenge because of insufficient understanding of the self-assembly process. We employed an atomistic model to study the self-assembly of peptide amphiphiles (PAs) containing valine-glutamic acid (VE) dimeric repeats. By changing of the sequence length, the assembly morphology changes from flat ribbon to left-handed twisted ribbon, implying a relationship between β-sheet twist and strength of interstrand hydrogen bonds. The calculations are used to quantify this relationship including both magnitude and sign of the ribbon twist angle. Interestingly, a change in chirality is observed when we introduce the RGD epitope into the C-terminal of VE repeats, suggesting arginine and glycine's role in suppressing right-handed β-sheet formation. This study provides insight into the relationship between β-sheet twist and self-assembled nanostructures including a possible design rule for PA self-assembly.
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Affiliation(s)
- Qinsi Xiong
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
| | - Samuel I Stupp
- Department of Chemistry, Center for BioInspired Energy Science, and Department of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, Illinois 60611, United States
| | - George C Schatz
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208-3113, United States
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11
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Puppulin L, Kanayama D, Terasaka N, Sakai K, Kodera N, Umeda K, Sumino A, Marchesi A, Weilin W, Tanaka H, Fukuma T, Suga H, Matsumoto K, Shibata M. Macrocyclic Peptide-Conjugated Tip for Fast and Selective Molecular Recognition Imaging by High-Speed Atomic Force Microscopy. ACS Appl Mater Interfaces 2021; 13:54817-54829. [PMID: 34766499 DOI: 10.1021/acsami.1c17708] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fast and selective recognition of molecules at the nanometer scale without labeling is a much desired but still challenging goal to achieve. Here, we show the use of high-speed atomic force microscopy (HS-AFM) for real-time and real-space recognition of unlabeled membrane receptors using tips conjugated with small synthetic macrocyclic peptides. The single-molecule recognition method is validated by experiments on the human hepatocyte growth factor receptor (hMET), which selectively binds to the macrocyclic peptide aMD4. By testing and comparing aMD4 synthesized with linkers of different lengths and rigidities, we maximize the interaction between the functionalized tip and hMET added to both a mica surface and supported lipid bilayers. Phase contrast imaging by HS-AFM enables us to discriminate nonlabeled hMET against the murine MET homologue, which does not bind to aMD4. Moreover, using ligands and linkers of small size, we achieve minimal deterioration of the spatial resolution in simultaneous topographic imaging. The versatility of macrocyclic peptides in detecting unlimited types of membrane receptors with high selectivity and the fast imaging by HS-AFM broaden the range of future applications of this method for molecular recognition without labeling.
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Affiliation(s)
- Leonardo Puppulin
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
- Department of Pathology and Cell Regulation, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kyoto 602-8566, Japan
| | - Daiki Kanayama
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Naohiro Terasaka
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Katsuya Sakai
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
- Division of Tumor Dynamics and Regulation, Cancer Research Institute, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Noriyuki Kodera
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Kenichi Umeda
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Ayumi Sumino
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
- Institute for Frontier Science Initiative, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Arin Marchesi
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Wei Weilin
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Hideo Tanaka
- Department of Pathology and Cell Regulation, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kajii-cho, Kawaramachi-Hirokoji, Kyoto 602-8566, Japan
| | - Takeshi Fukuma
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Hiroaki Suga
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - Kunio Matsumoto
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
- Division of Tumor Dynamics and Regulation, Cancer Research Institute, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
| | - Mikihiro Shibata
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
- Institute for Frontier Science Initiative, Kanazawa University, Kanazawa, Ishikawa 920-1192, Japan
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12
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La Manna S, Di Natale C, Onesto V, Marasco D. Self-Assembling Peptides: From Design to Biomedical Applications. Int J Mol Sci 2021; 22:12662. [PMID: 34884467 PMCID: PMC8657556 DOI: 10.3390/ijms222312662] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/15/2021] [Accepted: 11/19/2021] [Indexed: 12/20/2022] Open
Abstract
Self-assembling peptides could be considered a novel class of agents able to harvest an array of micro/nanostructures that are highly attractive in the biomedical field. By modifying their amino acid composition, it is possible to mime several biological functions; when assembled in micro/nanostructures, they can be used for a variety of purposes such as tissue regeneration and engineering or drug delivery to improve drug release and/or stability and to reduce side effects. Other significant advantages of self-assembled peptides involve their biocompatibility and their ability to efficiently target molecular recognition sites. Due to their intrinsic characteristics, self-assembled peptide micro/nanostructures are capable to load both hydrophobic and hydrophilic drugs, and they are suitable to achieve a triggered drug delivery at disease sites by inserting in their structure's stimuli-responsive moieties. The focus of this review was to summarize the most recent and significant studies on self-assembled peptides with an emphasis on their application in the biomedical field.
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Affiliation(s)
- Sara La Manna
- Department of Pharmacy, University of Naples “Federico II”, 80131 Naples, Italy;
| | - Concetta Di Natale
- Istituto Italiano di Tecnologia, IIT@CRIB, Largo Barsanti e Matteucci, 53, 80125 Napoli, Italy
- Centro di Ricerca Interdipartimentale sui Biomateriali CRIB, Università di Napoli Federico II, Piazzale Tecchio, 80, 80125 Napoli, Italy
| | - Valentina Onesto
- Institute of Nanotechnology, Consiglio Nazionale delle Ricerche, CNR NANOTEC, via Monteroni, c/o Campus Ecotekne, 73100 Lecce, Italy;
| | - Daniela Marasco
- Department of Pharmacy, University of Naples “Federico II”, 80131 Naples, Italy;
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13
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Affiliation(s)
- Lichen Yin
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou 215123, PR China.
| | - Jianjun Cheng
- University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| | - Timothy J Deming
- University of California Los Angeles, Los Angeles, CA 90095-1569, USA.
| | - María J Vicent
- Polymer Therapeutics Lab, Prince Felipe Research Center, 46012 Valencia Spain.
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14
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Zhang W, Wang W, Liu X, Chen Y, Ouyang K, Wei Z, Liu H, Huang W. Identification of novel B-cell epitopes on the capsid protein of type 1 porcine astrovirus, using monoclonal antibodies. Int J Biol Macromol 2021; 189:939-947. [PMID: 34464644 DOI: 10.1016/j.ijbiomac.2021.08.129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 08/06/2021] [Accepted: 08/17/2021] [Indexed: 10/20/2022]
Abstract
Porcine astrovirus (PAstV) is prevalent in pigs worldwide and could cause clinical symptoms such as diarrhea and encephalitis. The capsid protein (Cap) of PAstV plays a determinant role for virus immunological characteristics. In this study, the major antigenic regions of PAstV1 Cap were expressed through prokaryotic expression systems and immunized to BALB/c mice. Finally, two anti-Cap monoclonal antibodies (named mAb F4-4 and D3F10) were screened by indirect immune-fluorescence assay (IFA). A series of truncated GST-fused or artificially synthesized peptides were used to detect their reactivity with the mAbs and PAstV positive serum. Two novel B cell epitopes (120-GNNTFG-125, 485-RISDPTWFSA-494) were identified by using these two mAbs. Moreover, sequence alignment result showed that epitope 120-GNNTFG-125 was highly conserved in type 1 PAstV capsid protein. Cross-reactivity analysis further confirmed the genotype-specificity of mAb F4-4. The results of this study demonstrated to be the first description of monoclonal antibody preparation and B-cell epitope mapping on PAstV capsid protein, which may provide new information on the biological significance of PAstV capsid protein and lay a foundation for the development of PAstV immunological tests and genotype diagnostic methods.
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Affiliation(s)
- Wenchao Zhang
- College of Animal Science and Technology, Guangxi University, No. 100 Daxue Road, Nanning 530005, China
| | - Weiyi Wang
- College of Animal Science and Technology, Guangxi University, No. 100 Daxue Road, Nanning 530005, China
| | - Xin Liu
- College of Animal Science and Technology, Guangxi University, No. 100 Daxue Road, Nanning 530005, China
| | - Ying Chen
- College of Animal Science and Technology, Guangxi University, No. 100 Daxue Road, Nanning 530005, China
| | - Kang Ouyang
- College of Animal Science and Technology, Guangxi University, No. 100 Daxue Road, Nanning 530005, China
| | - Zuzhang Wei
- College of Animal Science and Technology, Guangxi University, No. 100 Daxue Road, Nanning 530005, China
| | - Huan Liu
- Department of Scientific Research, The First Affiliated Hospital of Guangxi University of Chinese Medicine, No. 89-9 Dongge Road, Nanning 530024, China.
| | - Weijian Huang
- College of Animal Science and Technology, Guangxi University, No. 100 Daxue Road, Nanning 530005, China.
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15
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Masomian M, Lalani S, Poh CL. Molecular Docking of SP40 Peptide towards Cellular Receptors for Enterovirus 71 (EV-A71). Molecules 2021; 26:molecules26216576. [PMID: 34770987 PMCID: PMC8587434 DOI: 10.3390/molecules26216576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 10/13/2021] [Accepted: 10/26/2021] [Indexed: 11/16/2022] Open
Abstract
Enterovirus 71 (EV-A71) is one of the predominant etiological agents of hand, foot and mouth disease (HMFD), which can cause severe central nervous system infections in young children. There is no clinically approved vaccine or antiviral agent against HFMD. The SP40 peptide, derived from the VP1 capsid of EV-A71, was reported to be a promising antiviral peptide that targeted the host receptor(s) involved in viral attachment or entry. So far, the mechanism of action of SP40 peptide is unknown. In this study, interactions between ten reported cell receptors of EV-A71 and the antiviral SP40 peptide were evaluated through molecular docking simulations, followed by in vitro receptor blocking with specific antibodies. The preferable binding region of each receptor to SP40 was predicted by global docking using HPEPDOCK and the cell receptor-SP40 peptide complexes were refined using FlexPepDock. Local molecular docking using GOLD (Genetic Optimization for Ligand Docking) showed that the SP40 peptide had the highest binding score to nucleolin followed by annexin A2, SCARB2 and human tryptophanyl-tRNA synthetase. The average GoldScore for 5 top-scoring models of human cyclophilin, fibronectin, human galectin, DC-SIGN and vimentin were almost similar. Analysis of the nucleolin-SP40 peptide complex showed that SP40 peptide binds to the RNA binding domains (RBDs) of nucleolin. Furthermore, receptor blocking by specific monoclonal antibody was performed for seven cell receptors of EV-A71 and the results showed that the blocking of nucleolin by anti-nucleolin alone conferred a 93% reduction in viral infectivity. Maximum viral inhibition (99.5%) occurred when SCARB2 was concurrently blocked with anti-SCARB2 and the SP40 peptide. This is the first report to reveal the mechanism of action of SP40 peptide in silico through molecular docking analysis. This study provides information on the possible binding site of SP40 peptide to EV-A71 cellular receptors. Such information could be useful to further validate the interaction of the SP40 peptide with nucleolin by site-directed mutagenesis of the nucleolin binding site.
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Affiliation(s)
- Malihe Masomian
- Correspondence: (M.M.); (C.L.P.); Tel.: +603-74918622 (ext. 7603) (M.M.); +603-74918622 (ext. 7338) (C.L.P.)
| | | | - Chit Laa Poh
- Correspondence: (M.M.); (C.L.P.); Tel.: +603-74918622 (ext. 7603) (M.M.); +603-74918622 (ext. 7338) (C.L.P.)
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16
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Beyer CD, Thavalingam S, Guseva T, Schardt L, Zimmermann R, Werner C, Dietze P, Bandow JE, Metzler-Nolte N, Rosenhahn A. Zwitterionic Peptides Reduce Accumulation of Marine and Freshwater Biofilm Formers. ACS Appl Mater Interfaces 2021; 13:49682-49691. [PMID: 34663068 DOI: 10.1021/acsami.1c13459] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Zwitterionic peptides are facile low-fouling compounds for environmental applications as they are biocompatible and fully biodegradable as their degradation products are just amino acids. Here, a set of histidine (H) and glutamic acid (E), as well as lysine (K) and glutamic acid (E) based peptide sequences with zwitterionic properties were synthesized. Both oligopeptides (KE)4K and (HE)4H were synthesized in d and l configurations to test their ability to resist the nonspecific adsorption of the proteins lysozyme and fibrinogen. The coatings were additionally tested against the attachment of the marine organisms Navicula perminuta and Cobetia marina as well as the freshwater bacterium Pseudomonas fluorescens on the developed coatings. While the peptides containing lysine performed better in protein resistance assays and against freshwater bacteria, the sequences containing histidine were generally more resistant against marine organisms. The contribution of amino acid-intrinsic properties such as side chain pKa values and hydrophobicity, as well as external parameters such as pH and salinity of fresh water and seawater on the resistance of the coatings is discussed. In this way, a detailed picture emerges as to which zwitterionic sequences show advantages in future generations of biocompatible, sustainable, and nontoxic fouling release coatings.
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Affiliation(s)
- Cindy D Beyer
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, 44801 Bochum, Germany
| | - Sugina Thavalingam
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr University Bochum, 44801 Bochum, Germany
| | - Tatiana Guseva
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, 44801 Bochum, Germany
| | - Lisa Schardt
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, 44801 Bochum, Germany
| | - Ralf Zimmermann
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials Dresden, 01069 Dresden, Germany
| | - Carsten Werner
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials Dresden, 01069 Dresden, Germany
| | - Pascal Dietze
- Applied Microbiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, 44801 Bochum, Germany
| | - Julia Elisabeth Bandow
- Applied Microbiology, Faculty of Biology and Biotechnology, Ruhr University Bochum, 44801 Bochum, Germany
| | - Nils Metzler-Nolte
- Inorganic Chemistry I - Bioinorganic Chemistry, Ruhr University Bochum, 44801 Bochum, Germany
| | - Axel Rosenhahn
- Analytical Chemistry - Biointerfaces, Ruhr University Bochum, 44801 Bochum, Germany
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17
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Cirillo S, Tomeh MA, Wilkinson RN, Hill C, Brown S, Zhao X. Designed Antitumor Peptide for Targeted siRNA Delivery into Cancer Spheroids. ACS Appl Mater Interfaces 2021; 13:49713-49728. [PMID: 34657415 DOI: 10.1021/acsami.1c14761] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Antimicrobial/anticancer peptides (AMPs/ACPs) have shown promising results as new therapeutic agents in cancer thearpy. Among them, the designed amphiphilic α-helical peptide G(IIKK)3I-NH2 (G3) displayed great affinity and specificity in targeting cancer cells. Here, we report new insights on how G3 penetrates cancer cells. G3 showed high specificity to HCT-116 colon cancer cells compared to the HDFs (human neonatal primary dermal fibroblasts) control. With high concentrations of peptide, a clear cancer cell membrane disruption was observed through SEM. Gene knockdown of the endocytic pathways demonstrated that an energy-dependent endocytic pathway is required for the uptake of the peptide. In addition, G3 can protect and selectively deliver siRNAs into cancer cells and successfully modulated their gene expression. Gene delivery was also tested in 3D cancer spheroids and showed deep penetration delivery into the cancer spheroids. Finally, the in vivo toxicity of G3 was evaluated on zebrafish embryos, showing an increasing toxicity effect with concentration. However, the toxicity of the peptide was attenuated when complexed with siRNA. In addition, negligible toxicity was observed at the concentration range for efficient gene delivery. The current results demonstrate that G3 is promising as an excellent agent for cancer therapy.
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Affiliation(s)
- Silvia Cirillo
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
| | - Mhd Anas Tomeh
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
| | - Robert N Wilkinson
- Department of Infection, Immunity & Cardiovascular Disease, University of Sheffield, Sheffield S10 2RX, United Kingdom
| | - Chris Hill
- Department of Biomedical Science, University of Sheffield, Sheffield S10 2TN, United Kingdom
| | - Stephen Brown
- Department of Biomedical Science, University of Sheffield, Sheffield S10 2TN, United Kingdom
| | - Xiubo Zhao
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, United Kingdom
- School of Pharmacy, Changzhou University, Changzhou 213164, China
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18
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Tian ZY, Zhang Z, Wang S, Lu H. A moisture-tolerant route to unprotected α/β-amino acid N-carboxyanhydrides and facile synthesis of hyperbranched polypeptides. Nat Commun 2021; 12:5810. [PMID: 34608139 PMCID: PMC8490447 DOI: 10.1038/s41467-021-25689-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 08/20/2021] [Indexed: 01/04/2023] Open
Abstract
A great hurdle in the production of synthetic polypeptides lies in the access of N-carboxyanhydrides (NCA) monomers, which requires dry solvents, Schlenk line/gloveboxe, and protection of side-chain functional groups. Here we report a robust method for preparing unprotected NCA monomers in air and under moisture. The method employs epoxy compounds as ultra-fast scavengers of hydrogen chloride to allow assisted ring-closure and prevent NCA from acid-catalyzed decomposition under moist conditions. The broad scope and functional group tolerance of the method are demonstrated by the facile synthesis of over 30 different α/β-amino acid NCAs, including many otherwise inaccessible compounds with reactive functional groups, at high yield, high purity, and up to decagram scales. The utility of the method and the unprotected NCAs is demonstrated by the facile synthesis of two water-soluble polypeptides that are promising candidates for drug delivery and protein modification. Overall, our strategy holds great potential for facilitating the synthesis of NCA and expanding the industrial application of synthetic polypeptides.
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Affiliation(s)
- Zi-You Tian
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Zhengchu Zhang
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Shuo Wang
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China
| | - Hua Lu
- Beijing National Laboratory for Molecular Sciences, Center for Soft Matter Science and Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, People's Republic of China.
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19
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Agostino M, Rooney J, Herat L, Matthews J, Simonds A, Northfield SE, Hopper D, Schlaich MP, Matthews VB. TNFSF14-Derived Molecules as a Novel Treatment for Obesity and Type 2 Diabetes. Int J Mol Sci 2021; 22:ijms221910647. [PMID: 34638990 PMCID: PMC8508965 DOI: 10.3390/ijms221910647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/24/2021] [Accepted: 09/28/2021] [Indexed: 12/12/2022] Open
Abstract
Obesity is one of the most prevalent metabolic diseases in the Western world and correlates directly with glucose intolerance and insulin resistance, often culminating in Type 2 Diabetes (T2D). Importantly, our team has recently shown that the TNF superfamily (TNFSF) member protein, TNFSF14, has been reported to protect against high fat diet induced obesity and pre-diabetes. We hypothesized that mimics of TNFSF14 may therefore be valuable as anti-diabetic agents. In this study, we use in silico approaches to identify key regions of TNFSF14 responsible for binding to the Herpes virus entry mediator and Lymphotoxin β receptor. In vitro evaluation of a selection of optimised peptides identified six potentially therapeutic TNFSF14 peptides. We report that these peptides increased insulin and fatty acid oxidation signalling in skeletal muscle cells. We then selected one of these promising peptides to determine the efficacy to promote metabolic benefits in vivo. Importantly, the TNFSF14 peptide 7 reduced high fat diet-induced glucose intolerance, insulin resistance and hyperinsulinemia in a mouse model of obesity. In addition, we highlight that the TNFSF14 peptide 7 resulted in a marked reduction in liver steatosis and a concomitant increase in phospho-AMPK signalling. We conclude that TNFSF14-derived molecules positively regulate glucose homeostasis and lipid metabolism and may therefore open a completely novel therapeutic pathway for treating obesity and T2D.
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MESH Headings
- Animals
- Binding Sites
- Blood Glucose/metabolism
- Computer Simulation
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/etiology
- Diabetes Mellitus, Type 2/metabolism
- Diet, High-Fat/adverse effects
- Disease Models, Animal
- Glucose Intolerance/drug therapy
- Glucose Intolerance/metabolism
- Homeostasis/drug effects
- Hyperinsulinism/drug therapy
- Hyperinsulinism/metabolism
- Hypoglycemic Agents/administration & dosage
- Hypoglycemic Agents/chemical synthesis
- Insulin Resistance
- Lymphotoxin beta Receptor/chemistry
- Lymphotoxin beta Receptor/metabolism
- Male
- Mice
- Mice, Inbred C57BL
- Obesity/complications
- Obesity/drug therapy
- Obesity/etiology
- Obesity/metabolism
- Peptides/administration & dosage
- Peptides/chemical synthesis
- Receptors, Tumor Necrosis Factor, Member 14/chemistry
- Receptors, Tumor Necrosis Factor, Member 14/metabolism
- Signal Transduction/drug effects
- Treatment Outcome
- Tumor Necrosis Factor Ligand Superfamily Member 14/administration & dosage
- Tumor Necrosis Factor Ligand Superfamily Member 14/chemistry
- Tumor Necrosis Factor Ligand Superfamily Member 14/metabolism
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Affiliation(s)
- Mark Agostino
- Curtin Medical School, Curtin University, Bentley, WA 6102, Australia; (M.A.); (A.S.)
- Curtin Health and Innovation Research Institute, Curtin University, Perth, WA 6845, Australia
- Curtin Institute for Computation, Curtin University, Perth, WA 6845, Australia
| | - Jennifer Rooney
- Dobney Hypertension Centre, School of Biomedical Sciences—Royal Perth Hospital Unit, University of Western Australia, Perth, WA 6009, Australia; (J.R.); (L.H.); (J.M.)
| | - Lakshini Herat
- Dobney Hypertension Centre, School of Biomedical Sciences—Royal Perth Hospital Unit, University of Western Australia, Perth, WA 6009, Australia; (J.R.); (L.H.); (J.M.)
| | - Jennifer Matthews
- Dobney Hypertension Centre, School of Biomedical Sciences—Royal Perth Hospital Unit, University of Western Australia, Perth, WA 6009, Australia; (J.R.); (L.H.); (J.M.)
| | - Allyson Simonds
- Curtin Medical School, Curtin University, Bentley, WA 6102, Australia; (M.A.); (A.S.)
| | - Susan E. Northfield
- Department of Biochemistry and Pharmacology, School of Biomedical Sciences, The University of Melbourne, Parkville, VIC 3010, Australia; (S.E.N.); (D.H.)
| | - Denham Hopper
- Department of Biochemistry and Pharmacology, School of Biomedical Sciences, The University of Melbourne, Parkville, VIC 3010, Australia; (S.E.N.); (D.H.)
- School of Chemistry, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Markus P. Schlaich
- Department of Cardiology, Royal Perth Hospital, Perth, WA 6000, Australia;
- Department of Nephrology, Royal Perth Hospital, Perth, WA 6000, Australia
- Department of Medicine, Royal Perth Hospital, Perth, WA 6000, Australia
| | - Vance B. Matthews
- Dobney Hypertension Centre, School of Biomedical Sciences—Royal Perth Hospital Unit, University of Western Australia, Perth, WA 6009, Australia; (J.R.); (L.H.); (J.M.)
- Correspondence: ; Tel.: +61-8-9224-0239; Fax: +61-8-9224-0374
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20
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Di Micco S, Musella S, Sala M, Scala MC, Andrei G, Snoeck R, Bifulco G, Campiglia P, Fasano A. Peptide Derivatives of the Zonulin Inhibitor Larazotide (AT1001) as Potential Anti SARS-CoV-2: Molecular Modelling, Synthesis and Bioactivity Evaluation. Int J Mol Sci 2021; 22:ijms22179427. [PMID: 34502335 PMCID: PMC8431481 DOI: 10.3390/ijms22179427] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 12/25/2022] Open
Abstract
A novel coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has been identified as the pathogen responsible for the outbreak of a severe, rapidly developing pneumonia (Coronavirus disease 2019, COVID-19). The virus enzyme, called 3CLpro or main protease (Mpro), is essential for viral replication, making it a most promising target for antiviral drug development. Recently, we adopted the drug repurposing as appropriate strategy to give fast response to global COVID-19 epidemic, by demonstrating that the zonulin octapeptide inhibitor AT1001 (Larazotide acetate) binds Mpro catalytic domain. Thus, in the present study we tried to investigate the antiviral activity of AT1001, along with five derivatives, by cell-based assays. Our results provide with the identification of AT1001 peptide molecular framework for lead optimization step to develop new generations of antiviral agents of SARS-CoV-2 with an improved biological activity, expanding the chance for success in clinical trials.
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Affiliation(s)
- Simone Di Micco
- European Biomedical Research Institute of Salerno (EBRIS), Via Salvatore de Renzi 50, 84125 Salerno, Italy; (S.M.); (A.F.)
- Correspondence:
| | - Simona Musella
- European Biomedical Research Institute of Salerno (EBRIS), Via Salvatore de Renzi 50, 84125 Salerno, Italy; (S.M.); (A.F.)
| | - Marina Sala
- Dipartimento di Farmacia, Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy; (M.S.); (M.C.S.); (G.B.); (P.C.)
| | - Maria C. Scala
- Dipartimento di Farmacia, Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy; (M.S.); (M.C.S.); (G.B.); (P.C.)
| | - Graciela Andrei
- Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, 3000 Leuven, Belgium; (G.A.); (R.S.)
| | - Robert Snoeck
- Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, 3000 Leuven, Belgium; (G.A.); (R.S.)
| | - Giuseppe Bifulco
- Dipartimento di Farmacia, Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy; (M.S.); (M.C.S.); (G.B.); (P.C.)
| | - Pietro Campiglia
- Dipartimento di Farmacia, Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Salerno, Italy; (M.S.); (M.C.S.); (G.B.); (P.C.)
| | - Alessio Fasano
- European Biomedical Research Institute of Salerno (EBRIS), Via Salvatore de Renzi 50, 84125 Salerno, Italy; (S.M.); (A.F.)
- Mucosal Immunology and Biology Research Center, Massachusetts General Hospital–Harvard Medical School, Boston, MA 02114, USA
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21
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Abstract
Circular economy and aqueous synthesis are attractive concepts for sustainable chemistry. Here it is reported that the two can be combined in the universal method for peptide chemistry, fluorenylmethoxycarbonyl(Fmoc)/t-Bu solid-phase peptide synthesis (SPPS). It was demonstrated that Fmoc/t-Bu SPPS could be performed under aqueous conditions using standard Fmoc amino acids (AAs) employing TentaGel S as resin and 4 : 1 mixture of water with inexpensive green solvent PolarClean. This resin/solvent combination played a crucial dual role by virtue of improving resin swelling and solubility of starting materials. In a model coupling, TCFH and 2,4,6-collidine afforded a full conversion at only 1.3 equiv. AA, and these conditions were used in SPPS of Leu enkephaline amide affording the model peptide in 85 % yield and 86 % purity. A method to recycle the waste by filtration through a mixed ion exchange resin was developed, allowing reusing the waste without affecting quality of the peptide. The method herein obviates the use of unconventional or processed AAs in aqueous SPPS while using lower amounts of starting materials. By recycling/reusing SPPS waste the hazardous dipolar aprotic solvents used in SPPS were not only replaced with an aqueous medium, solvent use was also significantly reduced. This opens up a new direction in aqueous peptide chemistry in which efficient use of inexpensive starting materials and waste minimization is coupled with the universal Fmoc/t-Bu SPPS.
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Affiliation(s)
- Jan Pawlas
- PolyPeptide Group, Limhamnsvägen 108, PO BOX 30089, 20061, Limhamn, Sweden
| | - Jon H Rasmussen
- PolyPeptide Group, Limhamnsvägen 108, PO BOX 30089, 20061, Limhamn, Sweden
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22
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Barreiro-Lage D, Bolognesi P, Chiarinelli J, Richter R, Zettergren H, Stockett MH, Carlini L, Diaz-Tendero S, Avaldi L. "Smart Decomposition" of Cyclic Alanine-Alanine Dipeptide by VUV Radiation: A Seed for the Synthesis of Biologically Relevant Species. J Phys Chem Lett 2021; 12:7379-7386. [PMID: 34324354 DOI: 10.1021/acs.jpclett.1c01788] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A combined experimental and theoretical study shows how the interaction of VUV radiation with cyclo-(alanine-alanine), one of the 2,5-diketopiperazines (DKPs), produces reactive oxazolidinone intermediates. The theoretical simulations reveal that the interaction of these intermediates with other neutral and charged fragments, released in the molecular decomposition, leads either to the reconstruction of the cyclic dipeptide or to the formation of longer linear peptide chains. These results may explain how DKPs could have, on one hand, survived hostile chemical environments and, on the other, provided the seed for amino acid polymerization. Shedding light on the mechanisms of production of such prebiotic building blocks is of paramount importance to understanding the abiotic synthesis of relevant biologically active compounds.
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Affiliation(s)
- Darío Barreiro-Lage
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Paola Bolognesi
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
| | - Jacopo Chiarinelli
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
| | - Robert Richter
- Elettra Sincrotrone Trieste, 34149 Basovizza, Trieste, Italy
| | | | - Mark H Stockett
- Department of Physics, Stockholm University, Se-10691 Stockholm, Sweden
| | - Laura Carlini
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
| | - Sergio Diaz-Tendero
- Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Science (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Lorenzo Avaldi
- Institute of Structure of Matter-CNR (ISM-CNR), Area della Ricerca di Roma 1, Via Salaria km 29.300, 00015 Monterotondo, Italy
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23
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Lian Z, Wang N, Tian Y, Huang L. Characterization of Synthetic Peptide Therapeutics Using Liquid Chromatography-Mass Spectrometry: Challenges, Solutions, Pitfalls, and Future Perspectives. J Am Soc Mass Spectrom 2021; 32:1852-1860. [PMID: 34110145 DOI: 10.1021/jasms.0c00479] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Synthetic peptides represent an important and expanding class of therapeutics. Despite having a relatively small size as compared to monoclonal antibodies and other proteins, synthetic peptides are subject to many complex structural modifications originating from the starting materials, manufacturing process, and storage conditions. Although mass spectrometry has been increasingly used to characterize impurities of synthetic peptides, systematic review of this field is scarce. In this paper, an overview of the impurities in synthetic peptide therapeutics is provided in the context of how the knowledge from detailed characterization of the impurities using liquid chromatography-mass spectrometry (LC-MS) can be used to develop the manufacturing process and control strategy for synthetic peptide therapeutics following the critical quality attribute (CQA)-driven and risk-based approach. The thresholds for identifying and controlling the impurities are discussed based on currently available regulatory guidance. Specific LC-MS techniques for identification of various types of impurities based on their structural characteristics are discussed with the focus on structural isomers and stereoisomers (i.e., peptide epimers). Absolute and relative quantitation methods for the peptide impurities are critiqued. Potential pitfalls in characterization of synthetic peptide therapeutics using LC-MS are discussed. Finally, a systematic LC-MS workflow for characterizing the impurities in synthetic peptide therapeutics is proposed, and future perspectives on applying emerging LC-MS techniques to address the remaining challenges in the development of synthetic peptide therapeutics are presented.
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Affiliation(s)
- Zhirui Lian
- Bioproducts Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana 46285, United States
| | - Ning Wang
- Bioproducts Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana 46285, United States
| | - Yuwei Tian
- Bioproducts Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana 46285, United States
| | - Lihua Huang
- Bioproducts Research and Development, Lilly Research Laboratories, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, Indiana 46285, United States
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24
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De Luca C, Lievore G, Bozza D, Buratti A, Cavazzini A, Ricci A, Macis M, Cabri W, Felletti S, Catani M. Downstream Processing of Therapeutic Peptides by Means of Preparative Liquid Chromatography. Molecules 2021; 26:4688. [PMID: 34361839 PMCID: PMC8348516 DOI: 10.3390/molecules26154688] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/14/2021] [Accepted: 07/28/2021] [Indexed: 12/31/2022] Open
Abstract
The market of biomolecules with therapeutic scopes, including peptides, is continuously expanding. The interest towards this class of pharmaceuticals is stimulated by the broad range of bioactivities that peptides can trigger in the human body. The main production methods to obtain peptides are enzymatic hydrolysis, microbial fermentation, recombinant approach and, especially, chemical synthesis. None of these methods, however, produce exclusively the target product. Other species represent impurities that, for safety and pharmaceutical quality reasons, must be removed. The remarkable production volumes of peptide mixtures have generated a strong interest towards the purification procedures, particularly due to their relevant impact on the manufacturing costs. The purification method of choice is mainly preparative liquid chromatography, because of its flexibility, which allows one to choose case-by-case the experimental conditions that most suitably fit that particular purification problem. Different modes of chromatography that can cover almost every separation case are reviewed in this article. Additionally, an outlook to a very recent continuous chromatographic process (namely Multicolumn Countercurrent Solvent Gradient Purification, MCSGP) and future perspectives regarding purification strategies will be considered at the end of this review.
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Affiliation(s)
- Chiara De Luca
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
| | - Giulio Lievore
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
| | - Desiree Bozza
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
| | - Alessandro Buratti
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
| | - Alberto Cavazzini
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
| | - Antonio Ricci
- Fresenius Kabi iPSUM, Via San Leonardo 23, 45010 Villadose, Italy; (A.R.); (M.M.)
| | - Marco Macis
- Fresenius Kabi iPSUM, Via San Leonardo 23, 45010 Villadose, Italy; (A.R.); (M.M.)
| | - Walter Cabri
- Department of Chemistry “Giacomo Ciamician”, Alma Mater Studiorum—University of Bologna, Via Selmi 2, 40126 Bologna, Italy;
| | - Simona Felletti
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
| | - Martina Catani
- Department of Chemistry, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy; (C.D.L.); (G.L.); (D.B.); (A.B.); (A.C.)
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25
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Herlan CN, Sonnefeld A, Gloge T, Brückel J, Schlee LC, Muhle-Goll C, Nieger M, Bräse S. Macrocyclic Tetramers-Structural Investigation of Peptide-Peptoid Hybrids. Molecules 2021; 26:molecules26154548. [PMID: 34361700 PMCID: PMC8348019 DOI: 10.3390/molecules26154548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/23/2021] [Accepted: 07/24/2021] [Indexed: 11/16/2022] Open
Abstract
Outstanding affinity and specificity are the main characteristics of peptides, rendering them interesting compounds for basic and medicinal research. However, their biological applicability is limited due to fast proteolytic degradation. The use of mimetic peptoids overcomes this disadvantage, though they lack stereochemical information at the α-carbon. Hybrids composed of amino acids and peptoid monomers combine the unique properties of both parent classes. Rigidification of the backbone increases the affinity towards various targets. However, only little is known about the spatial structure of such constrained hybrids. The determination of the three-dimensional structure is a key step for the identification of new targets as well as the rational design of bioactive compounds. Herein, we report the synthesis and the structural elucidation of novel tetrameric macrocycles. Measurements were taken in solid and solution states with the help of X-ray scattering and NMR spectroscopy. The investigations made will help to find diverse applications for this new, promising compound class.
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Affiliation(s)
- Claudine Nicole Herlan
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (J.B.); (L.C.S.)
| | - Anna Sonnefeld
- Institute for Biological Interfaces 4, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (A.S.); (T.G.); (C.M.-G.)
| | - Thomas Gloge
- Institute for Biological Interfaces 4, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (A.S.); (T.G.); (C.M.-G.)
| | - Julian Brückel
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (J.B.); (L.C.S.)
| | - Luisa Chiara Schlee
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (J.B.); (L.C.S.)
| | - Claudia Muhle-Goll
- Institute for Biological Interfaces 4, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (A.S.); (T.G.); (C.M.-G.)
| | - Martin Nieger
- Department of Chemistry, University of Helsinki, P.O. Box 55 (A.I. Virtasen aukio 1), FIN-00014 Helsinki, Finland;
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (J.B.); (L.C.S.)
- Institute of Biological and Chemical Systems—Functional Molecular Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Correspondence:
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26
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Zheng J, Tian N, Liu F, Zhang Y, Su J, Gao Y, Deng M, Wei L, Ye J, Li H, Wang JZ. A novel dephosphorylation targeting chimera selectively promoting tau removal in tauopathies. Signal Transduct Target Ther 2021; 6:269. [PMID: 34262014 PMCID: PMC8280143 DOI: 10.1038/s41392-021-00669-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 01/04/2021] [Accepted: 01/18/2021] [Indexed: 11/12/2022] Open
Abstract
Intraneuronal accumulation of hyperphosphorylated tau is a hallmark pathology shown in over twenty neurodegenerative disorders, collectively termed as tauopathies, including the most common Alzheimer's disease (AD). Therefore, selectively removing or reducing hyperphosphorylated tau is promising for therapies of AD and other tauopathies. Here, we designed and synthesized a novel DEPhosphorylation TArgeting Chimera (DEPTAC) to specifically facilitate the binding of tau to Bα-subunit-containing protein phosphatase 2A (PP2A-Bα), the most active tau phosphatase in the brain. The DEPTAC exhibited high efficiency in dephosphorylating tau at multiple AD-associated sites and preventing tau accumulation both in vitro and in vivo. Further studies revealed that DEPTAC significantly improved microtubule assembly, neurite plasticity, and hippocampus-dependent learning and memory in transgenic mice with inducible overexpression of truncated and neurotoxic human tau N368. Our data provide a strategy for selective removal of the hyperphosphorylated tau, which sheds new light for the targeted therapy of AD and related-tauopathies.
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Affiliation(s)
- Jie Zheng
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China/Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Department of Pharmacology, Key Laboratory of Basic Pharmacology of Ministry of Education, Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, China.
| | - Na Tian
- Department of Histology and Embryology, Key Laboratory of Ministry of Education for Neurological Disorders, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fei Liu
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China/Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yidian Zhang
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China/Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingfen Su
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China/Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Gao
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China/Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mingmin Deng
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China/Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Linyu Wei
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China/Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingwang Ye
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China/Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Honglian Li
- Department of Histology and Embryology, Key Laboratory of Ministry of Education for Neurological Disorders, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jian-Zhi Wang
- Department of Pathophysiology, School of Basic Medicine, Key Laboratory of Education Ministry of China/Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China.
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27
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Abstract
A significant number of antiviral agents used in clinical practice are amino acids, short peptides, or peptidomimetics. Among them, several HIV protease inhibitors (e. g. lopinavir, atazanavir), HCV protease inhibitors (e. g. grazoprevir, glecaprevir), and HCV NS5A protein inhibitors have contributed to a significant decrease in mortality from AIDS and hepatitis. However, there is an ongoing need for the discovery of new antiviral agents and the development of existing drugs; amino acids, both proteinogenic and non-proteinogenic in nature, serve as convenient building blocks for this purpose. The synthesis of non-proteinogenic amino acid components of antiviral agents could be challenging due to the need for enantiomerically or diastereomerically pure products. Herein, we present a concise review of antiviral agents whose structures are based on amino acids of both natural and unnatural origin. Special attention is paid to the synthetic aspects of non-proteinogenic amino acid components of those agents.
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Affiliation(s)
- Andrzej S Skwarecki
- Department of Pharmaceutical Technology and Biochemistry and BioTechMed Center, Gdańsk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233, Gdańsk, Poland
| | - Michał G Nowak
- Department of Organic Chemistry and BioTechMed Center, Gdańsk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233, Gdańsk, Poland
| | - Maria J Milewska
- Department of Organic Chemistry and BioTechMed Center, Gdańsk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233, Gdańsk, Poland
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28
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Wang H, Wang Z, Chen W, Wang W, Shi W, Chen J, Hang Y, Song J, Xiao X, Dai Z. Self-assembly of photosensitive and radiotherapeutic peptide for combined photodynamic-radio cancer therapy with intracellular delivery of miRNA-139-5p. Bioorg Med Chem 2021; 44:116305. [PMID: 34273735 DOI: 10.1016/j.bmc.2021.116305] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/30/2021] [Accepted: 07/04/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND A significant challenge in cancer therapy is to maximize the therapeutic efficacy and minimize the side effects. In the past decade, a lot of nanoparticles have been used as the carriers for efficient drug delivery. METHODS AND RESULTS This study was to prepare R9 modified with 125I-labeled cRGD and ce6 which self-assembled with miR-139-5p to form nanoparticles (Ce6-R9-125I-RGD-MNPs), and to further take advantage of the enhanced permeability and retention (EPR) effect of radiolabeled nanoparticles to realize the integration of tumor diagnosis and treatment. We successfully synthesized and represented it, saline and serum stability experiments demonstrating good stability. Moreover, Ce6-R9-125I-RGD-MNPs showed superior tumor targeting and the effect of combined photodynamic therapy (PDT) and radiotherapy treatment in vivo and vitro. CONCLUSION The pathological results further confirmed that the therapeutic doses of Ce6-R9-125I-RGD-MNPs cause pathological changes of tumor tissues while showing minimal toxicity to normal tissues.
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Affiliation(s)
- Hanhua Wang
- Dept. of Radiation Oncology, Affiliated Yancheng School of Clinical Medicine of Nanjing Medical University, PR China
| | - Ziyi Wang
- Dept. of Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University, PR China
| | - Weiwei Chen
- Dept. of Radiation Oncology, Affiliated Yancheng School of Clinical Medicine of Nanjing Medical University, PR China
| | - Wencai Wang
- Dept. of Radiation Oncology, Affiliated Yancheng School of Clinical Medicine of Nanjing Medical University, PR China
| | - Woda Shi
- Dept. of Radiation Oncology, Affiliated Yancheng School of Clinical Medicine of Nanjing Medical University, PR China
| | - Jinzhong Chen
- Dept. of Radiation Oncology, Affiliated Yancheng School of Clinical Medicine of Nanjing Medical University, PR China
| | - Ye Hang
- Dept. of Radiation Oncology, Affiliated Yancheng School of Clinical Medicine of Nanjing Medical University, PR China
| | - Jin Song
- Dept. of Radiation Oncology, Affiliated Yancheng School of Clinical Medicine of Nanjing Medical University, PR China
| | - Xiao Xiao
- School of Chemistry and Chemical Engineering, Nanjing University,163 Xianlin Avenue, Nanjing 210023, PR China
| | - Zhenyu Dai
- Dept. of Radiology, Affiliated Yancheng School of Clinical Medicine of Nanjing Medical University, PR China.
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29
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Mrówczyńska E, Mazur AJ. Integrin-Linked Kinase (ILK) Plays an Important Role in the Laminin-Dependent Development of Dorsal Root Ganglia during Chicken Embryogenesis. Cells 2021; 10:cells10071666. [PMID: 34359835 PMCID: PMC8304069 DOI: 10.3390/cells10071666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/24/2021] [Accepted: 06/29/2021] [Indexed: 12/25/2022] Open
Abstract
Integrin-linked kinase (ILK) is mainly localized in focal adhesions where it interacts and modulates the downstream signaling of integrins affecting cell migration, adhesion, and survival. The interaction of dorsal root ganglia (DRG) cells, being part of the peripheral nervous system (PNS), with the extracellular matrix (ECM) via integrins is crucial for proper PNS development. A few studies have focused on ILK’s role in PNS development, but none of these have focused on chicken. Therefore, we decided to investigate ILK’s role in the development of Gallus gallus domesticus’s DRG. First, using RT-PCR, Western blotting, and in situ hybridization, we show that ILK is expressed in DRG. Next, by immunocytochemistry, we show ILK’s localization both intracellularly and on the cell membrane of DRG neurons and Schwann cell precursors (SCPs). Finally, we describe ILK’s involvement in multiple aspects of DRG development by performing functional experiments in vitro. IgG-mediated interruption of ILK’s action improved DRG neurite outgrowth, modulated their directionality, stimulated SCPs migration, and impacted growth cone morphology in the presence of laminin-1 or laminin-1 mimicking peptide IKVAV. Taken together, our results show that ILK is important for chicken PNS development, probably via its exposure to the ECM.
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Affiliation(s)
- Ewa Mrówczyńska
- Correspondence: (E.M.); (A.J.M.); Tel.: +48-71-375-7972 (E.M.); +48-71-375-6206 (A.J.M.)
| | - Antonina Joanna Mazur
- Correspondence: (E.M.); (A.J.M.); Tel.: +48-71-375-7972 (E.M.); +48-71-375-6206 (A.J.M.)
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30
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Abstract
Protein N-terminal acetyltransferase D (NatD, NAA40) that specifically acetylates the alpha-N-terminus of histone H4 and H2A has been implicated in various diseases, but no inhibitor has been reported for this important enzyme. Based on the acetyl transfer mechanism of NatD, we designed and prepared a series of highly potent NatD bisubstrate inhibitors by covalently linking coenzyme A to different peptide substrates via an acetyl or propionyl spacer. The most potent bisubstrate inhibitor displayed an apparent Ki value of 1.0 nM. Biochemical studies indicated that bisubstrate inhibitors are competitive to the peptide substrate and noncompetitive to the cofactor, suggesting that NatD undergoes an ordered Bi-Bi mechanism. We also demonstrated that these inhibitors are highly specific toward NatD, displaying about 1000-fold selectivity over other closely related acetyltransferases. High-resolution crystal structures of NatD bound to two of these inhibitors revealed the molecular basis for their selectivity and inhibition mechanism, providing a rational path for future inhibitor development.
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Affiliation(s)
- Youchao Deng
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue Institute for Drug Discovery, Purdue University Center for Cancer Research, Purdue University, West Lafayette, Indiana 47907, United States
| | - Sunbin Deng
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Yi-Hsun Ho
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue Institute for Drug Discovery, Purdue University Center for Cancer Research, Purdue University, West Lafayette, Indiana 47907, United States
| | - Sarah M. Gardner
- Department of Biochemistry and Biophysics, Abramson Family Cancer Research Institute, Graduate Group in Biochemistry and Molecular Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Zhi Huang
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue Institute for Drug Discovery, Purdue University Center for Cancer Research, Purdue University, West Lafayette, Indiana 47907, United States
| | - Ronen Marmorstein
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Biochemistry and Biophysics, Abramson Family Cancer Research Institute, Graduate Group in Biochemistry and Molecular Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Rong Huang
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue Institute for Drug Discovery, Purdue University Center for Cancer Research, Purdue University, West Lafayette, Indiana 47907, United States
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31
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Braga Emidio N, Tran HNT, Andersson A, Dawson PE, Albericio F, Vetter I, Muttenthaler M. Improving the Gastrointestinal Stability of Linaclotide. J Med Chem 2021; 64:8384-8390. [PMID: 33979161 PMCID: PMC8237258 DOI: 10.1021/acs.jmedchem.1c00380] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Indexed: 12/19/2022]
Abstract
High susceptibility to proteolytic degradation in the gastrointestinal tract limits the therapeutic application of peptide drugs in gastrointestinal disorders. Linaclotide is an orally administered peptide drug for the treatment of irritable bowel syndrome with constipation (IBS-C) and abdominal pain. Linaclotide is however degraded in the intestinal environment within 1 h, and improvements in gastrointestinal stability might enhance its therapeutic application. We therefore designed and synthesized a series of linaclotide analogues employing a variety of strategic modifications and evaluated their gastrointestinal stability and pharmacological activity at its target receptor guanylate cyclase-C. All analogues had substantial improvements in gastrointestinal half-lives (>8 h vs linaclotide 48 min), and most remained active at low nanomolar concentrations. This work highlights strategic approaches for the development of gut-stable peptides toward the next generation of orally administered peptide drugs for the treatment of gastrointestinal disorders.
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Affiliation(s)
- Nayara Braga Emidio
- Institute
for Molecular Bioscience, The University
of Queensland, Brisbane, Queensland 4072, Australia
| | - Hue N. T. Tran
- Institute
for Molecular Bioscience, The University
of Queensland, Brisbane, Queensland 4072, Australia
| | - Asa Andersson
- Institute
for Molecular Bioscience, The University
of Queensland, Brisbane, Queensland 4072, Australia
| | - Philip E. Dawson
- Department
of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Fernando Albericio
- CIBER-BBN,
Networking Centre on Bioengineering, Biomaterials and Nanomedicine,
and Department of Organic Chemistry, University
of Barcelona, 08028 Barcelona, Spain
| | - Irina Vetter
- Institute
for Molecular Bioscience, The University
of Queensland, Brisbane, Queensland 4072, Australia
- School
of Pharmacy, Pharmacy Australia Centre of Excellence, The University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Markus Muttenthaler
- Institute
for Molecular Bioscience, The University
of Queensland, Brisbane, Queensland 4072, Australia
- Institute
of Biological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
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32
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Yano S, Mori T, Kubota H. Silylated Tag-Assisted Peptide Synthesis: Continuous One-Pot Elongation for the Production of Difficult Peptides under Environmentally Friendly Conditions. Molecules 2021; 26:molecules26123497. [PMID: 34201337 PMCID: PMC8228865 DOI: 10.3390/molecules26123497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 11/16/2022] Open
Abstract
Addition of the silylated tag (STag) enables peptides to be highly soluble in CPME, allowing them to be used at high concentrations in a coupling reaction to enhance reactivity and achieve effective synthesis of sterically hindered peptides. We described the development of a continuous one-pot STag-assisted peptide synthesis platform as a method that provides near-stoichiometric, speedy, environmentally friendly, and scalable peptide synthesis.
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33
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Kaplaneris N, Son J, Mendive-Tapia L, Kopp A, Barth ND, Maksso I, Vendrell M, Ackermann L. Chemodivergent manganese-catalyzed C-H activation: modular synthesis of fluorogenic probes. Nat Commun 2021; 12:3389. [PMID: 34099672 PMCID: PMC8185085 DOI: 10.1038/s41467-021-23462-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/13/2021] [Indexed: 01/22/2023] Open
Abstract
Bioorthogonal late-stage diversification of amino acids and peptides bears enormous potential for drug discovery and molecular imaging. Despite major accomplishments, these strategies largely rely on traditional, lengthy prefunctionalization methods, heavily involving precious transition-metal catalysis. Herein, we report on a resource-economical manganese(I)-catalyzed C-H fluorescent labeling of structurally complex peptides ensured by direct alkynylation and alkenylation manifolds. This modular strategy sets the stage for unraveling structure-activity relationships between structurally discrete fluorophores towards the rational design of BODIPY fluorogenic probes for real-time analysis of immune cell function.
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Affiliation(s)
- Nikolaos Kaplaneris
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Jongwoo Son
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Göttingen, Germany
| | | | - Adelina Kopp
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Nicole D Barth
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh, UK
| | - Isaac Maksso
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Marc Vendrell
- Centre for Inflammation Research, The University of Edinburgh, Edinburgh, UK.
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Göttingen, Germany.
- German Centre for Cardiovascular Research (DZHK), Berlin, Germany.
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34
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Abstract
A two-step synthesis for methionine-containing hydrophobic and/or aggregation-prone peptides is presented that takes advantage of the reversibility of methionine oxidation. The use of polar methionine sulfoxide as a building block in solid-phase peptide synthesis improves the synthesis quality and yields the crude peptide, with significantly improved solubility compared to the reduced species. This facilitates the otherwise often laborious peptide purification by high-performance liquid chromatography. The subsequent reduction proceeds quantitatively. This approach has been optimised with the methionine-rich Tar-DNA-binding protein 43 (307-347), but is also more generally applicable, as demonstrated by the syntheses of human calcitonin and two aggregation-prone peptides from the human prion protein.
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Affiliation(s)
- Vanessa Reusche
- Institute of Organic ChemistryHeidelberg UniversityIm Neuenheimer Feld 27069120HeidelbergGermany
- Centre for Advanced MaterialsIm Neuenheimer Feld 22569120HeidelbergGermany
- Institute of Organic and Biomolecular ChemistryUniversity of GöttingenTammannstrasse 237077GöttingenGermany
| | - Franziska Thomas
- Institute of Organic ChemistryHeidelberg UniversityIm Neuenheimer Feld 27069120HeidelbergGermany
- Centre for Advanced MaterialsIm Neuenheimer Feld 22569120HeidelbergGermany
- Institute of Organic and Biomolecular ChemistryUniversity of GöttingenTammannstrasse 237077GöttingenGermany
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35
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Maingret F, Groc L. Characterization of the Functional Cross-Talk between Surface GABA A and Dopamine D5 Receptors. Int J Mol Sci 2021; 22:ijms22094867. [PMID: 34064454 PMCID: PMC8125140 DOI: 10.3390/ijms22094867] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/27/2021] [Accepted: 04/30/2021] [Indexed: 01/17/2023] Open
Abstract
The γ-aminobutyric acid type A receptor (GABAAR) plays a major role in fast inhibitory synaptic transmission and is highly regulated by the neuromodulator dopamine. In this aspect, most of the attention has been focused on the classical intracellular signaling cascades following dopamine G-protein-coupled receptor activation. Interestingly, the GABAAR and dopamine D5 receptor (D5R) have been shown to physically interact in the hippocampus, but whether a functional cross-talk occurs is still debated. In the present study, we use a combination of imaging and single nanoparticle tracking in live hippocampal neurons to provide evidence that GABAARs and D5Rs form dynamic surface clusters. Disrupting the GABAAR–D5R interaction with a competing peptide leads to an increase in the diffusion coefficient and the explored area of both receptors, and a drop in immobile synaptic GABAARs. By means of patch-clamp recordings, we show that this fast lateral redistribution of surface GABAARs correlates with a robust depression in the evoked GABAergic currents. Strikingly, it also shifts in time the expression of long-term potentiation at glutamatergic synapses. Together, our data both set the plasma membrane as the primary stage of a functional interplay between GABAAR and D5R, and uncover a non-canonical role in regulating synaptic transmission.
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Affiliation(s)
- François Maingret
- Interdisciplinary Institute for Neuroscience, Université de Bordeaux, UMR 5297, 33076 Bordeaux, France;
- CNRS, Interdisciplinary Institute for Neuroscience, UMR 5297, 33076 Bordeaux, France
- Correspondence:
| | - Laurent Groc
- Interdisciplinary Institute for Neuroscience, Université de Bordeaux, UMR 5297, 33076 Bordeaux, France;
- CNRS, Interdisciplinary Institute for Neuroscience, UMR 5297, 33076 Bordeaux, France
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36
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Yan S, Yan J, Liu D, Li X, Kang Q, You W, Zhang J, Wang L, Tian Z, Lu W, Liu W, He W. A nano-predator of pathological MDMX construct by clearable supramolecular gold(I)-thiol-peptide complexes achieves safe and potent anti-tumor activity. Theranostics 2021; 11:6833-6846. [PMID: 34093856 PMCID: PMC8171083 DOI: 10.7150/thno.59020] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/22/2021] [Indexed: 12/11/2022] Open
Abstract
As alternatives to small-molecular proteolysis-targeting chimeras (PROTAC), peptide-based molecular glues (MG) are a broad range of dual-functional ligands that simultaneously bind with targetable proteins and E3 ligases by mimicking proteinprotein interaction (PPI) partners. Methods: Herein, we design a peptide-derived MG to target a tumor-driving protein, MDMX, for degradation, and nanoengineered it into a supramolecular gold(I)-thiol-peptide complex (Nano-MP) to implement the proteolysis recalcitrance, cellular internalization, and glutathione-triggered release. To optimize the tumor targeting, a pH-responsive macromolecule termed polyacryl sulfydryl imidazole (PSI) was synthesized to coat Nano-MP. Results: As expected, Nano-MP@PSI induced the MDMX degradation by ubiquitination and subsequently restored the anti-cancer function of p53 and p73. Nano-MP@PSI revealed potent anti-cancer activities in an orthotopic xenograft mouse model of retinoblastoma by intraocular injection and a patient-derived xenograft model of malignant pancreatic cancer by systemic injection, while maintaining a favorable safety profile and showing a highly favorable clearable profile of excretion from the living body. Conclusion: Collectively, this work not only provided a clinically viable paradigm for the treatment of a wide variety of tumors by multiple administration types, but, more importantly, it bridged the chasm between peptides and PROTACs, and likely reinvigorated the development of peptide-derived proteolysis-targeting chimeras for a great variety of diseases.
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Affiliation(s)
- Siqi Yan
- Department of Talent Highland, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Ophthalmology Department, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Jin Yan
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Dan Liu
- Department of Talent Highland, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Xiang Li
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Qianyan Kang
- Ophthalmology Department, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Weiming You
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Jinghua Zhang
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - Lei Wang
- Institute for Stem Cell & Regenerative Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Zhiqi Tian
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, 45267 OH, USA
| | - Wuyuan Lu
- School of Basic Medicine, Fudan University, Shanghai 20433, China
| | - Wenjia Liu
- Institute for Stem Cell & Regenerative Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Wangxiao He
- Department of Talent Highland, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute for Stem Cell & Regenerative Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
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37
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Staś M, Broda MA, Siodłak D. Thiazole-amino acids: influence of thiazole ring on conformational properties of amino acid residues. Amino Acids 2021; 53:673-686. [PMID: 33837859 PMCID: PMC8128816 DOI: 10.1007/s00726-021-02974-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 03/29/2021] [Indexed: 12/29/2022]
Abstract
Post-translational modified thiazole-amino acid (Xaa-Tzl) residues have been found in macrocyclic peptides (e.g., thiopeptides and cyanobactins), which mostly inhibit protein synthesis in Gram + bacteria. Conformational study of the series of model compounds containing this structural motif with alanine, dehydroalanine, dehydrobutyrine and dehydrophenylalanine were performed using DFT method in various environments. The solid-state crystal structure conformations of thiazole-amino acid residues retrieved from the Cambridge Structural Database were also analysed. The studied structural units tend to adopt the unique semi-extended β2 conformation; which is stabilised mainly by N-H⋯NTzl hydrogen bond, and for dehydroamino acids also by π-electron conjugation. The conformational preferences of amino acids with a thiazole ring were compared with oxazole analogues and the role of the sulfur atom in stabilising the conformations of studied peptides was discussed.
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Affiliation(s)
- Monika Staś
- Faculty of Chemistry, University of Opole, 45-052, Opole, Poland.
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Science, Flemingovo Náměstí 2, 166 10, Praha 6, Czech Republic.
| | | | - Dawid Siodłak
- Faculty of Chemistry, University of Opole, 45-052, Opole, Poland.
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Zhu LB, Xu WL, Zhang WW, Wu MC, Li WZ, Ge F, Tao YG, Song P. De novosynthesis of pH-responsive, self-assembled, and targeted polypeptide nano-micelles for enhanced delivery of doxorubicin. Nanotechnology 2021; 32:295707. [PMID: 33711826 DOI: 10.1088/1361-6528/abee49] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
Doxorubicin (DOX) is a commonly used anticancer drug, but it is inefficient as a therapeutic due to a lack of targeting. Peptide-tuned self-assembly of DOX offers a strategy to improve targeting for greater efficacy. In this work, we designed and prepared an amphiphilic tumor cell-targeting peptide, P14 (AAAAFFFHHHGRGD), able to encapsulate DOX by self-assembly to form tumor cell-targeting and pH-sensitive nano-micelles. The results showed a critical P14-micelle concentration of 1.758 mg l-1and an average particle size of micelles of 121.64 nm, with entrapment and drug-loading efficiencies of 28.02% ± 1.35% and 12.06% ± 0.59%, respectively. The prepared micelles can release 73.52 ± 1.27% DOX within 24 h in pH 4.5 medium, and the drug cumulative release profile of micelles can be described by the first-order model. Compared with free DOX, the micelles exhibited an increased ability to inhibit tumor cell growth and cause tumor apoptosisin vitro, with IC50values of DOX and P14-DOX micelles against human breast cancer cells (MCF-7) of 0.91 ± 0.07 and 0.75 ± 0.06μg ml-1, respectively, and cellular apoptotic rates of DOX and P14-DOX micelles of 70.3% and 42.4%, respectively. Cellular uptake experiments revealed high concentrations of micelles around and inside MCF-7 cells, demonstrating that micelles can target tumor cells. These results indicate the excellent potential for the application of this amphiphilic peptide as a carrier for small-molecule drugs and suggest a strategy for the design of effective anti-tumor drugs.
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Affiliation(s)
- Long-Bao Zhu
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, Anhui, People's Republic of China
| | - Wen-Liang Xu
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, Anhui, People's Republic of China
| | - Wei-Wei Zhang
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, Anhui, People's Republic of China
| | - Ming-Cai Wu
- Department of Biochemistry and Molecular Biology, Wannan Medical College, Wuhu, 241002, Anhui, People's Republic of China
| | - Wan-Zhen Li
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, Anhui, People's Republic of China
| | - Fei Ge
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, Anhui, People's Republic of China
| | - Yu-Gui Tao
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, Anhui, People's Republic of China
| | - Ping Song
- College of Biological and Food Engineering, Anhui Polytechnic University, Wuhu, 241000, Anhui, People's Republic of China
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Koga T, Kingetsu S, Higashi N. Supramolecular Nanofibers from Collagen-Mimetic Peptides Bearing Various Aromatic Groups at N-Termini via Hierarchical Self-Assembly. Int J Mol Sci 2021; 22:4533. [PMID: 33926094 PMCID: PMC8123610 DOI: 10.3390/ijms22094533] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/23/2021] [Accepted: 04/23/2021] [Indexed: 11/17/2022] Open
Abstract
Self-assembly of artificial peptides has been widely studied for constructing nanostructured materials, with numerous potential applications in the nanobiotechnology field. Herein, we report the synthesis and hierarchical self-assembly of collagen-mimetic peptides (CMPs) bearing various aromatic groups at the N-termini, including 2-naphthyl, 1-naphtyl, anthracenyl, and pyrenyl groups, into nanofibers. The CMPs (R-(GPO)n: n > 4) formed a triple helix structure in water at 4 °C, as confirmed via CD analyses, and their conformations were more stable with increasing hydrophobicity of the terminal aromatic group and peptide chain length. The resulting pre-organized triple helical CMPs showed diverse self-assembly into highly ordered nanofibers, reflecting their slight differences in hydrophobic/hydrophilic balance and configuration of aromatic templates. TEM analysis demonstrated that 2Np-CMPn (n = 6 and 7) and Py-CMP6 provided well-developed natural collagen-like nanofibers and An-CMPn (n = 5-7) self-assembled into rod-like micelle fibers. On the other hand, 2Np-CMP5 and 1Np-CMP6 were unable to form nanofibers under the same conditions. Furthermore, the Py-CMP6 nanofiber was found to encapsulate a guest hydrophobic molecule, Nile red, and exhibited unique emission behavior based on the specific nanostructure. In addition to the ability of CMPs to bind small molecules, their controlled self-assembly enables their versatile utilization in drug delivery and wavelength-conversion nanomaterials.
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Affiliation(s)
- Tomoyuki Koga
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan;
| | | | - Nobuyuki Higashi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan;
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Pakravan D, Michiels E, Bratek-Skicki A, De Decker M, Van Lindt J, Alsteens D, Derclaye S, Van Damme P, Schymkowitz J, Rousseau F, Tompa P, Van Den Bosch L. Liquid-Liquid Phase Separation Enhances TDP-43 LCD Aggregation but Delays Seeded Aggregation. Biomolecules 2021; 11:548. [PMID: 33917983 PMCID: PMC8068378 DOI: 10.3390/biom11040548] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/19/2021] [Accepted: 03/31/2021] [Indexed: 12/12/2022] Open
Abstract
Aggregates of TAR DNA-binding protein (TDP-43) are a hallmark of several neurodegenerative disorders, including amyotrophic lateral sclerosis (ALS). Although TDP-43 aggregates are an undisputed pathological species at the end stage of these diseases, the molecular changes underlying the initiation of aggregation are not fully understood. The aim of this study was to investigate how phase separation affects self-aggregation and aggregation seeded by pre-formed aggregates of either the low-complexity domain (LCD) or its short aggregation-promoting regions (APRs). By systematically varying the physicochemical conditions, we observed that liquid-liquid phase separation (LLPS) promotes spontaneous aggregation. However, we noticed less efficient seeded aggregation in phase separating conditions. By analyzing a broad range of conditions using the Hofmeister series of buffers, we confirmed that stabilizing hydrophobic interactions prevail over destabilizing electrostatic forces. RNA affected the cooperativity between LLPS and aggregation in a "reentrant" fashion, having the strongest positive effect at intermediate concentrations. Altogether, we conclude that conditions which favor LLPS enhance the subsequent aggregation of the TDP-43 LCD with complex dependence, but also negatively affect seeding kinetics.
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Affiliation(s)
- Donya Pakravan
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven-University of Leuven, 3000 Leuven, Belgium; (D.P.); (M.D.D.); (P.V.D.)
- VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, 3000 Leuven, Belgium
| | - Emiel Michiels
- Switch Laboratory, VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium; (E.M.); (J.S.); (F.R.)
| | - Anna Bratek-Skicki
- VIB-VUB Center for Structural Biology, 1050 Brussels, Belgium; (A.B.-S.); (J.V.L.); (P.T.)
| | - Mathias De Decker
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven-University of Leuven, 3000 Leuven, Belgium; (D.P.); (M.D.D.); (P.V.D.)
- VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, 3000 Leuven, Belgium
| | - Joris Van Lindt
- VIB-VUB Center for Structural Biology, 1050 Brussels, Belgium; (A.B.-S.); (J.V.L.); (P.T.)
| | - David Alsteens
- Institute of Life Sciences, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium; (D.A.); (S.D.)
| | - Sylvie Derclaye
- Institute of Life Sciences, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium; (D.A.); (S.D.)
| | - Philip Van Damme
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven-University of Leuven, 3000 Leuven, Belgium; (D.P.); (M.D.D.); (P.V.D.)
- VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, 3000 Leuven, Belgium
- Department of Neurology, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Joost Schymkowitz
- Switch Laboratory, VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium; (E.M.); (J.S.); (F.R.)
| | - Frederic Rousseau
- Switch Laboratory, VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium; (E.M.); (J.S.); (F.R.)
| | - Peter Tompa
- VIB-VUB Center for Structural Biology, 1050 Brussels, Belgium; (A.B.-S.); (J.V.L.); (P.T.)
| | - Ludo Van Den Bosch
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven-University of Leuven, 3000 Leuven, Belgium; (D.P.); (M.D.D.); (P.V.D.)
- VIB, Center for Brain & Disease Research, Laboratory of Neurobiology, 3000 Leuven, Belgium
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Abstract
Organometallic complexes have recently gained attention as competent bioconjugation reagents capable of introducing a diverse array of substrates to biomolecule substrates. Here, we detail the synthesis and characterization of an aminophosphine-supported Au(III) platform that provides rapid and convenient access to a wide array of peptide-based assemblies via cysteine S-arylation. This strategy results in the formation of robust C-S covalent linkages and is an attractive method for the modification of complex biomolecules due to the high functional group tolerance, chemoselectivity, and rapid reaction kinetics associated with these arylation reactions. This work expands upon existing metal-mediated cysteine arylation by introducing a class of air-stable organometallic complexes that serve as robust bioconjugation reagents enabling the synthesis of conjugates of higher structural complexity including macrocyclic stapled and bicyclic peptides as well as a peptide-functionalized multivalent hybrid nanocluster. This organometallic-based approach provides a convenient, one-step method of peptide functionalization and macrocyclization, and has the potential to contribute to efforts directed toward developing efficient synthetic strategies of building new and diverse hybrid peptide-based assemblies.
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Affiliation(s)
- Julia M. Stauber
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92092
| | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92092
| | - Alexander M. Spokoyny
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095
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Liu Y, Yin L. α-Amino acid N-carboxyanhydride (NCA)-derived synthetic polypeptides for nucleic acids delivery. Adv Drug Deliv Rev 2021; 171:139-163. [PMID: 33333206 DOI: 10.1016/j.addr.2020.12.007] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 12/06/2020] [Accepted: 12/10/2020] [Indexed: 12/17/2022]
Abstract
In recent years, gene therapy has come into the spotlight for the prevention and treatment of a wide range of diseases. Polypeptides have been widely used in mediating nucleic acid delivery, due to their versatilities in chemical structures, desired biodegradability, and low cytotoxicity. Chemistry plays an essential role in the development of innovative polypeptides to address the challenges of producing efficient and safe gene vectors. In this Review, we mainly focused on the latest chemical advances in the design and preparation of polypeptide-based nucleic acid delivery vehicles. We first discussed the synthetic approach of polypeptides via ring-opening polymerization (ROP) of N-carboxyanhydrides (NCAs), and introduced the various types of polypeptide-based gene delivery systems. The extracellular and intracellular barriers against nucleic acid delivery were then outlined, followed by detailed review on the recent advances in polypeptide-based delivery systems that can overcome these barriers to enable in vitro and in vivo gene transfection. Finally, we concluded this review with perspectives in this field.
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Affiliation(s)
- Yong Liu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Lichen Yin
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China.
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43
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Yang H, Peng T, Wen X, Chen T, Sun Y, Liu S, Wang G, Zhang S, Wang L. A Photolabile Carboxyl Protecting Group for Solid Phase Peptide Synthesis. ChemistryOpen 2021; 10:497-502. [PMID: 33908701 PMCID: PMC8080293 DOI: 10.1002/open.202000324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 02/18/2021] [Indexed: 11/08/2022] Open
Abstract
A new kind of photolabile protecting group (PLPG) for carboxyl moieties was designed and synthesized as the linker between resin and peptide. This group can be used for the protection of amino acid carboxyl groups. The peptide was synthesized on Nph (2-hydroxy-3-(2-nitrophenyl)-heptanoic acid)-derivatized resins and could be cleaved under UV exposure, thus avoiding the necessity for harsh acid-mediated resin cleavage. The PLPG has been successfully used for solid-phase synthesis of peptides.
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Affiliation(s)
- Hongpeng Yang
- Faculty of Environment & Life, Beijing University of Technology, Beijing, 100124, China
- Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, 100850, China
| | - Tao Peng
- Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, 100850, China
| | - Xiaoxue Wen
- Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, 100850, China
| | - Tingting Chen
- Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, 100850, China
| | - Yunbo Sun
- Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, 100850, China
| | - Shuchen Liu
- Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, 100850, China
| | - Gang Wang
- Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, 100850, China
| | - Shouguo Zhang
- Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, 100850, China
| | - Lin Wang
- Faculty of Environment & Life, Beijing University of Technology, Beijing, 100124, China
- Beijing Institute of Radiation Medicine, 27 Taiping Road, Haidian District, Beijing, 100850, China
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44
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Sharma J, Collins TD, Roach T, Mishra S, Lam BK, Mohamed ZS, Veal AE, Polk TB, Jones A, Cornaby C, Haider MI, Zeumer-Spataro L, Johnson HM, Morel LM, Larkin J. Suppressor of cytokine signaling-1 mimetic peptides attenuate lymphocyte activation in the MRL/lpr mouse autoimmune model. Sci Rep 2021; 11:6354. [PMID: 33737712 PMCID: PMC7973732 DOI: 10.1038/s41598-021-86017-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 03/09/2021] [Indexed: 12/30/2022] Open
Abstract
Autoimmune diseases are driven largely by a pathogenic cytokine milieu produced by aberrantly activated lymphocytes. Many cytokines, including interferon gamma (IFN-γ), utilize the JAK/STAT pathway for signal propagation. Suppressor of Cytokine Signaling-1 (SOCS1) is an inducible, intracellular protein that regulates IFN-γ signaling by dampening JAK/STAT signaling. Using Fas deficient, MRL/MpJ-Faslpr/J (MRL/lpr) mice, which develop lupus-like disease spontaneously, we tested the hypothesis that a peptide mimic of the SOCS1 kinase inhibitory region (SOCS1-KIR) would inhibit lymphocyte activation and modulate lupus-associated pathologies. Consistent with in vitro studies, SOCS1-KIR intraperitoneal administration reduced the frequency, activation, and cytokine production of memory CD8+ and CD4+ T lymphocytes within the peripheral blood, spleen, and lymph nodes. In addition, SOCS1-KIR administration reduced lymphadenopathy, severity of skin lesions, autoantibody production, and modestly reduced kidney pathology. On a cellular level, peritoneal SOCS1-KIR administration enhanced Foxp3 expression in total splenic and follicular regulatory T cells, reduced the effector memory/naïve T lymphocyte ratio for both CD4+ and CD8+ cells, and reduced the frequency of GL7+ germinal center enriched B cells. Together, these data show that SOCS1-KIR treatment reduced auto-reactive lymphocyte effector functions and suggest that therapeutic targeting of the SOCS1 pathway through peptide administration may have efficacy in mitigating autoimmune pathologies.
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Affiliation(s)
- Jatin Sharma
- Department of Microbiology & Cell Science, University of Florida, Museum Road Building 981, PO Box 110700, Gainesville, FL, 32611, USA
| | - Teresa D Collins
- Department of Microbiology & Cell Science, University of Florida, Museum Road Building 981, PO Box 110700, Gainesville, FL, 32611, USA
| | - Tracoyia Roach
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Shiwangi Mishra
- Department of Microbiology & Cell Science, University of Florida, Museum Road Building 981, PO Box 110700, Gainesville, FL, 32611, USA
| | - Brandon K Lam
- Department of Microbiology & Cell Science, University of Florida, Museum Road Building 981, PO Box 110700, Gainesville, FL, 32611, USA
| | - Zaynab Sidi Mohamed
- Department of Microbiology & Cell Science, University of Florida, Museum Road Building 981, PO Box 110700, Gainesville, FL, 32611, USA
| | - Antia E Veal
- Department of Microbiology & Cell Science, University of Florida, Museum Road Building 981, PO Box 110700, Gainesville, FL, 32611, USA
| | - Timothy B Polk
- Department of Microbiology & Cell Science, University of Florida, Museum Road Building 981, PO Box 110700, Gainesville, FL, 32611, USA
| | - Amari Jones
- Department of Microbiology & Cell Science, University of Florida, Museum Road Building 981, PO Box 110700, Gainesville, FL, 32611, USA
| | - Caleb Cornaby
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Mohammed I Haider
- Department of Microbiology & Cell Science, University of Florida, Museum Road Building 981, PO Box 110700, Gainesville, FL, 32611, USA
| | - Leilani Zeumer-Spataro
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Howard M Johnson
- Department of Microbiology & Cell Science, University of Florida, Museum Road Building 981, PO Box 110700, Gainesville, FL, 32611, USA
| | - Laurence M Morel
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL, 32610, USA
| | - Joseph Larkin
- Department of Microbiology & Cell Science, University of Florida, Museum Road Building 981, PO Box 110700, Gainesville, FL, 32611, USA.
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Sowińska M, Szeliga M, Morawiak M, Ziemińska E, Zabłocka B, Urbańczyk-Lipkowska Z. Peptide Dendrimers with Non-Symmetric Bola Structure Exert Long Term Effect on Glioblastoma and Neuroblastoma Cell Lines. Biomolecules 2021; 11:435. [PMID: 33804286 PMCID: PMC8000084 DOI: 10.3390/biom11030435] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/08/2021] [Accepted: 03/12/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Glioblastoma (GBM) is the most common malignant tumor of the central nervous system (CNS). Neuroblastoma (NB) is one of the most common cancers of childhood derived from the neural crest cells. The survival rate for patients with GBM and high-risk NB is poor; therefore, novel therapeutic approaches are needed. Increasing evidence suggests a dual role of redox-active compounds in both tumorigenesis and cancer treatment. Therefore, in this study, polyfunctional peptide-based dendrimeric molecules of the bola structure carrying residues with antiproliferative potential on one side and the antioxidant residues on the other side were designed. METHODS We synthesized non-symmetric bola dendrimers and assessed their radical scavenging potency as well as redox capability. The influence of dendrimers on viability of rat primary cerebellar neurons (CGC) and normal human astrocytes (NHA) was determined by propidium iodide staining and cell counting. Cytotoxicity against human GBM cell lines, T98G and LN229, and NB cell line SH-SY5Y was assessed by cell counting and colony forming assay. RESULTS Testing of CGC and NHA viability allowed to establish a range of optimal dendrimers structure and concentration for further evaluation of their impact on two human GBM and one human NB cell lines. According to ABTS, DPPH, FRAP, and CUPRAC antioxidant tests, the most toxic for normal cells were dendrimers with high charge and an excess of antioxidant residues (Trp and PABA) on both sides of the bola structure. At 5 μM concentration, most of the tested dendrimers neither reduced rat CGC viability below 50-40%, nor harmed human neurons (NHA). The same dose of compounds 16 or 22, after 30 min treatment decreased the number of SH-SY5Y and LN229 cells, but did not affect the number of T98G cells 48 h post treatment. However, either compound significantly reduced the number of colonies formed by SH-SY5Y, LN229, and T98G cells measured 14 days after treatment. CONCLUSIONS Peptide dendrimers with non-symmetric bola structure are excellent scaffolds for design of molecules with pro/antioxidant functionality. Design of molecules with an excess of positive charges and antioxidant residues rendered molecules with high neurotoxicity. Single, 30 min exposition of the GBM and NB cell lines to the selected bola dendrimers significantly suppressed their clonogenic potential.
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Affiliation(s)
- Marta Sowińska
- Institute of Organic Chemistry PAS, 01-224 Warsaw, Poland; (M.S.); (M.M.)
| | - Monika Szeliga
- Mossakowski Medical Research Institute PAS, 02-106 Warsaw, Poland; (E.Z.); (B.Z.)
| | - Maja Morawiak
- Institute of Organic Chemistry PAS, 01-224 Warsaw, Poland; (M.S.); (M.M.)
| | - Elżbieta Ziemińska
- Mossakowski Medical Research Institute PAS, 02-106 Warsaw, Poland; (E.Z.); (B.Z.)
| | - Barbara Zabłocka
- Mossakowski Medical Research Institute PAS, 02-106 Warsaw, Poland; (E.Z.); (B.Z.)
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46
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Azuar A, Li Z, Shibu MA, Zhao L, Luo Y, Shalash AO, Khalil ZG, Capon RJ, Hussein WM, Toth I, Skwarczynski M. Poly(hydrophobic amino acid)-Based Self-Adjuvanting Nanoparticles for Group A Streptococcus Vaccine Delivery. J Med Chem 2021; 64:2648-2658. [PMID: 33529034 DOI: 10.1021/acs.jmedchem.0c01660] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Peptide antigens have been widely used in the development of vaccines, especially for those against autoimmunity-inducing pathogens and cancers. However, peptide-based vaccines require adjuvant and/or a delivery system to stimulate desired immune responses. Here, we explored the potential of self-adjuvanting poly(hydrophobic amino acids) (pHAAs) to deliver peptide-based vaccine against Group A Streptococcus (GAS). We designed and synthesized self-assembled nanoparticles with a variety of conjugates bearing a peptide antigen (J8-PADRE) and polymerized hydrophobic amino acids to evaluate the effects of structural arrangement and pHAAs properties on a system's ability to induce humoral immune responses. Immunogenicity of the developed conjugates was also compared to commercially available human adjuvants. We found that a linear conjugate bearing J8-PADRE and 15 copies of leucine induced equally effective, or greater, immune responses than commercial adjuvants. Our fully defined, adjuvant-free, single molecule-based vaccine induced the production of antibodies capable of killing GAS bacteria.
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Affiliation(s)
- Armira Azuar
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Zhuoqing Li
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Mohini A Shibu
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Lili Zhao
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Yacheng Luo
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Ahmed O Shalash
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Zeinab G Khalil
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Robert J Capon
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Waleed M Hussein
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
| | - Istvan Toth
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
- Institute for Molecular Bioscience, The University of Queensland, St. Lucia, QLD 4072, Australia
- School of Pharmacy, Woolloongabba, The University of Queensland, St. Lucia, QLD 4102, Australia
| | - Mariusz Skwarczynski
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia
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47
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Naudin EA, McEwen AG, Tan SK, Poussin-Courmontagne P, Schmitt JL, Birck C, DeGrado WF, Torbeev V. Acyl Transfer Catalytic Activity in De Novo Designed Protein with N-Terminus of α-Helix As Oxyanion-Binding Site. J Am Chem Soc 2021; 143:3330-3339. [PMID: 33635059 PMCID: PMC8012002 DOI: 10.1021/jacs.0c10053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The design of catalytic proteins with functional sites capable of specific chemistry is gaining momentum and a number of artificial enzymes have recently been reported, including hydrolases, oxidoreductases, retro-aldolases, and others. Our goal is to develop a peptide ligase for robust catalysis of amide bond formation that possesses no stringent restrictions to the amino acid composition at the ligation junction. We report here the successful completion of the first step in this long-term project by building a completely de novo protein with predefined acyl transfer catalytic activity. We applied a minimalist approach to rationally design an oxyanion hole within a small cavity that contains an adjacent thiol nucleophile. The N-terminus of the α-helix with unpaired hydrogen-bond donors was exploited as a structural motif to stabilize negatively charged tetrahedral intermediates in nucleophilic addition-elimination reactions at the acyl group. Cysteine acting as a principal catalytic residue was introduced at the second residue position of the α-helix N-terminus in a designed three-α-helix protein based on structural informatics prediction. We showed that this minimal set of functional elements is sufficient for the emergence of catalytic activity in a de novo protein. Using peptide-αthioesters as acyl-donors, we demonstrated their catalyzed amidation concomitant with hydrolysis and proved that the environment at the catalytic site critically influences the reaction outcome. These results represent a promising starting point for the development of efficient catalysts for protein labeling, conjugation, and peptide ligation.
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Affiliation(s)
- Elise A Naudin
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), International Center for Frontier Research in Chemistry (icFRC), University of Strasbourg, CNRS (UMR 7006), Strasbourg 67000, France
| | - Alastair G McEwen
- Integrated Structural Biology Platform, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS (UMR 7104), INSERM (U1258), University of Strasbourg, Illkirch 67404, France
| | - Sophia K Tan
- Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute, University of California San Francisco, San Francisco, California 94158-9001, United States
| | - Pierre Poussin-Courmontagne
- Integrated Structural Biology Platform, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS (UMR 7104), INSERM (U1258), University of Strasbourg, Illkirch 67404, France
| | - Jean-Louis Schmitt
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), International Center for Frontier Research in Chemistry (icFRC), University of Strasbourg, CNRS (UMR 7006), Strasbourg 67000, France
| | - Catherine Birck
- Integrated Structural Biology Platform, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), CNRS (UMR 7104), INSERM (U1258), University of Strasbourg, Illkirch 67404, France
| | - William F DeGrado
- Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute, University of California San Francisco, San Francisco, California 94158-9001, United States
| | - Vladimir Torbeev
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), International Center for Frontier Research in Chemistry (icFRC), University of Strasbourg, CNRS (UMR 7006), Strasbourg 67000, France
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48
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Contini A, Erba E, Bondavalli V, Barbiroli A, Gelmi ML, Romanelli A. Morpholino-based peptide oligomers: Synthesis and DNA binding properties. Biochem Biophys Res Commun 2021; 549:8-13. [PMID: 33652207 DOI: 10.1016/j.bbrc.2021.02.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 02/19/2021] [Indexed: 11/17/2022]
Abstract
The chemical structure of oligonucleotide analogues dictates the conformation of oligonucleotide analogue oligomers, their ability to hybridize complementary DNA and RNA, their stability to degradation and their pharmacokinetic properties. In a study aimed at investigating new analogues featuring a neutral backbone, we explored the ability of oligomers containing a morpholino-peptide backbone to bind oligonucleotides. Circular Dichroism studies revealed the ability of our oligomers to interact with DNA, molecular modelling studies revealed the interaction responsible for complex stabilization.
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Affiliation(s)
- Alessandro Contini
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
| | - Emanuela Erba
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
| | - Valeria Bondavalli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
| | - Alberto Barbiroli
- DeFENS - Dipartimento di Scienze per gli Alimenti, la Nutrizione e l'Ambiente, Università degli Studi di Milano, Milano, Italy
| | - Maria Luisa Gelmi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy
| | - Alessandra Romanelli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Milano, Italy.
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49
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Thodkar K, Cazade PA, Bergmann F, Lopez-Calle E, Thompson D, Heindl D. Self-Assembled Pyrene Stacks and Peptide Monolayers Tune the Electronic Properties of Functionalized Electrolyte-Gated Graphene Field-Effect Transistors. ACS Appl Mater Interfaces 2021; 13:9134-9142. [PMID: 33573369 DOI: 10.1021/acsami.0c18485] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Aromatic molecules such as pyrenes are a unique class of building units for graphene functionalization, forming highly ordered π-π stacks while peptides provide more complex, biocompatible linkers. Understanding the adsorption and stacking behavior of these molecules and their influence on material properties is an essential step in enabling highly repeatable 2D material-based applications, such as biosensors, gas sensors, and solar cells. In this work, we characterize pyrene and peptide self-assembly on graphene substrates using fluorescence microscopy, atomic force microscopy and electrolyte-gated field-effect measurements supported by quantum mechanical calculations. We find distinct binding and assembly modes for pyrenes versus peptides with corresponding distinct electronic signatures in their characteristic charge neutrality point and field-effect slope responses. Our data demonstrates that pyrene- and peptide-based self-assembly platforms can be highly beneficial for precisely customizing graphene electronic properties for desired device technologies such as transport-based biosensing graphene field-effect transistors.
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Affiliation(s)
- Kishan Thodkar
- BioMed X Institute, Im Neuenheimer Feld 515, 69120 Heidelberg, Germany
| | - Pierre-Andre Cazade
- Department of Physics, Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
| | - Frank Bergmann
- Roche Diagnostics GmbH, Nonnenwald 2, 82377 Penzberg, Germany
| | | | - Damien Thompson
- Department of Physics, Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland
| | - Dieter Heindl
- Roche Diagnostics GmbH, Nonnenwald 2, 82377 Penzberg, Germany
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50
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Yamada Y, Fichman G, Schneider JP. Serum Protein Adsorption Modulates the Toxicity of Highly Positively Charged Hydrogel Surfaces. ACS Appl Mater Interfaces 2021; 13:8006-8014. [PMID: 33590757 PMCID: PMC9169696 DOI: 10.1021/acsami.0c21596] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Hydrogels formed from peptide self-assembly are a class of materials that are being explored for their utility in tissue engineering, drug and cell delivery, two- and three-dimensional cell culture, and as adjuvants in surgical procedures. Most self-assembled peptide gels can be syringe-injected in vivo to facilitate the local delivery of payloads, including cells, directly to the targeted tissue. Herein, we report that highly positively charged peptide gels are inherently toxic to cells, which would seem to limit their utility. However, adding media containing fetal bovine serum, a common culture supplement, directly transforms these toxic gels into cytocompatible materials capable of sustaining cell viability even in the absence of added nutrients. Multistage mass spectrometry showed that at least 40 serum proteins can absorb to a gel's surface through electrostatic attraction ameliorating its toxicity. Further, cell-based studies employing model gels having only bovine serum albumin, fetuin-A, or vitronectin absorbed to the gel surface showed that single protein additives can also be effective depending on the identity of the cell line. Separate studies employing these model gels showed that the mechanism(s) responsible for mitigating apoptosis involve both the pacification of gel surface charge and adsorbed protein-mediated cell signaling events that activate both the PI3/Akt and MAPK/ERK pathways which are known to facilitate resistance to stress-induced apoptosis and overall cell survival.
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Affiliation(s)
- Yuji Yamada
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, Maryland 21702, United States
| | - Galit Fichman
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, Maryland 21702, United States
| | - Joel P Schneider
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, National Institutes of Health, Frederick, Maryland 21702, United States
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