1
|
Sun L, Wilke Saliba S, Apweiler M, Akmermer K, Herlan C, Grathwol C, de Oliveira ACP, Normann C, Jung N, Bräse S, Fiebich BL. Anti-Neuroinflammatory Effects of a Macrocyclic Peptide-Peptoid Hybrid in Lipopolysaccharide-Stimulated BV2 Microglial Cells. Int J Mol Sci 2024; 25:4462. [PMID: 38674048 PMCID: PMC11049839 DOI: 10.3390/ijms25084462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
Inflammation processes of the central nervous system (CNS) play a vital role in the pathogenesis of several neurological and psychiatric disorders like depression. These processes are characterized by the activation of glia cells, such as microglia. Clinical studies showed a decrease in symptoms associated with the mentioned diseases after the treatment with anti-inflammatory drugs. Therefore, the investigation of novel anti-inflammatory drugs could hold substantial potential in the treatment of disorders with a neuroinflammatory background. In this in vitro study, we report the anti-inflammatory effects of a novel hexacyclic peptide-peptoid hybrid in lipopolysaccharide (LPS)-stimulated BV2 microglial cells. The macrocyclic compound X15856 significantly suppressed Interleukin 6 (IL-6), tumor necrosis factor-α (TNF-α), c-c motif chemokine ligand 2 (CCL2), CCL3, C-X-C motif chemokine ligand 2 (CXCL2), and CXCL10 expression and release in LPS-treated BV2 microglial cells. The anti-inflammatory effects of the compound are partially explained by the modulation of the phosphorylation of p38 mitogen-activated protein kinases (MAPK), p42/44 MAPK (ERK 1/2), protein kinase C (PKC), and the nuclear factor (NF)-κB, respectively. Due to its remarkable anti-inflammatory properties, this compound emerges as an encouraging option for additional research and potential utilization in disorders influenced by inflammation, such as depression.
Collapse
Affiliation(s)
- Lu Sun
- Neuroimmunology and Neurochemistry Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, D-79104 Freiburg, Germany
| | - Soraya Wilke Saliba
- Neuroimmunology and Neurochemistry Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, D-79104 Freiburg, Germany
| | - Matthias Apweiler
- Neuroimmunology and Neurochemistry Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, D-79104 Freiburg, Germany
| | - Kamil Akmermer
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany; (K.A.); (C.H.); (S.B.)
| | - Claudine Herlan
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany; (K.A.); (C.H.); (S.B.)
- Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, D-76131 Karlsruhe, Germany
| | - Christoph Grathwol
- Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, D-76131 Karlsruhe, Germany
| | | | - Claus Normann
- Mechanisms of Depression Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, D-79104 Freiburg, Germany
| | - Nicole Jung
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany; (K.A.); (C.H.); (S.B.)
- Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, D-76131 Karlsruhe, Germany
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany; (K.A.); (C.H.); (S.B.)
- Institute of Biological and Chemical Systems-Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, D-76131 Karlsruhe, Germany
| | - Bernd L. Fiebich
- Neuroimmunology and Neurochemistry Research Group, Department of Psychiatry and Psychotherapy, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, D-79104 Freiburg, Germany
| |
Collapse
|
2
|
McBrayer DN, Ghosh U, Lella M, Cameron CD, Tal-Gan Y. Peptoid-Peptide Hybrid Analogs of the Enterococcus faecalis Fsr Auto-Inducing Peptide (AIP) Reveal Crucial Structure-Activity Relationships. Chembiochem 2023; 24:e202200527. [PMID: 36376247 PMCID: PMC9812899 DOI: 10.1002/cbic.202200527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 11/12/2022] [Indexed: 11/16/2022]
Abstract
As multidrug-resistant bacteria become a more pressing risk to human health, alternate approaches to treating bacterial infections are being increasingly investigated. Enterococcus faecalis is an opportunistic pathogen responsible for a large percentage of secondary enterococci infections. Its pathogenicity has been shown to be largely dependent on a cell-density communication mechanism, termed quorum sensing. In this study, we conducted a systematic investigation of the lactone-containing macrocyclic signaling peptide used by E. faecalis for Fsr-mediated communication, termed gelatinase biosynthesis activating pheromone (GBAP). Specifically, through a combination of the on-resin sub-monomer and solution phase peptoid building block synthesis approaches, we successfully synthesized a library of peptoid-peptide hybrid analogs of GBAP and determined the biological effects associated with the introduction of the peptoid (N-alkyl glycine derivative) modifications. Within the macrocycle region of the peptide, as have been seen with other modifications, the F7 site was unusually tolerant toward peptoid modification, compared with other macrocyclic sites. Interestingly, within the exocyclic tail, peptoid modification at the N2 site completely abolished activity, a first for a single tail modification.
Collapse
Affiliation(s)
- Dominic N. McBrayer
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia Street, Reno, NV, 89557, USA
| | - Uttam Ghosh
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia Street, Reno, NV, 89557, USA
| | - Muralikrishna Lella
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia Street, Reno, NV, 89557, USA
| | - Crissey D. Cameron
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia Street, Reno, NV, 89557, USA
| | - Yftah Tal-Gan
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia Street, Reno, NV, 89557, USA
| |
Collapse
|
3
|
Wang HM, Seo CD, Lee KJ, Park JH, Lim HS. Evaluation of the cell permeability of bicyclic peptoids and bicyclic peptide-peptoid hybrids. Bioorg Chem 2022; 127:105976. [DOI: 10.1016/j.bioorg.2022.105976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/14/2022] [Accepted: 06/16/2022] [Indexed: 11/02/2022]
|
4
|
Pradhan K, Das G, Gupta V, Mondal P, Barman S, Khan J, Ghosh S. Discovery of Neuroregenerative Peptoid from Amphibian Neuropeptide That Inhibits Amyloid-β Toxicity and Crosses Blood-Brain Barrier. ACS Chem Neurosci 2019; 10:1355-1368. [PMID: 30408415 DOI: 10.1021/acschemneuro.8b00427] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Development of potential therapeutics for Alzheimer's disease (AD) requires a multifaceted strategy considering the high levels of complexity of the human brain and its mode of function. Here, we adopted an advanced strategy targeting two key pathological hallmarks of AD: senile plaques and neurofibrillary tangles. We derived a lead short tetrapeptide, Ser-Leu-Lys-Pro (SLKP), from a dodeca-neuropeptide of amphibian (frog) brain. Results suggested that the SLKP peptide had a superior effect compared to the dodecapeptide in neuroprotection. This result encouraged us to adopt peptidomimetic approach to synthesize an SLKP peptoid. Remarkably, we found that the SLKP peptoid is more potent than its peptide analogue, which significantly inhibits Aβ fibrillization, moderately binds with tubulin, and promotes tubulin polymerization as well as stabilization of microtubule networks. Further, we found that SLKP peptoid is stable in serum, shows significant neuroprotection against Aβ mediated toxicity, promotes significant neurite outgrowth, maintains healthy morphology of rat primary cortical neurons and crosses the blood-brain barrier (BBB). To the best of our knowledge, our SLKP peptoid is the first and shortest peptoid to show significant neuroprotection and neuroregeneration against Aβ toxicity, as well as to cross the BBB offering a potential lead for AD therapeutics.
Collapse
Affiliation(s)
- Krishnangsu Pradhan
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032 West Bengal, India
| | - Gaurav Das
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032 West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology Campus, 4 Raja S. C. Mullick Road, Kolkata 700032, India
| | - Varsha Gupta
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032 West Bengal, India
| | - Prasenjit Mondal
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032 West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology Campus, 4 Raja S. C. Mullick Road, Kolkata 700032, India
| | - Surajit Barman
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032 West Bengal, India
| | - Juhee Khan
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032 West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology Campus, 4 Raja S. C. Mullick Road, Kolkata 700032, India
| | - Surajit Ghosh
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032 West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology Campus, 4 Raja S. C. Mullick Road, Kolkata 700032, India
| |
Collapse
|
5
|
Pradhan K, Das G, Mondal P, Khan J, Barman S, Ghosh S. Genesis of Neuroprotective Peptoid from Aβ30-34 Inhibits Aβ Aggregation and AChE Activity. ACS Chem Neurosci 2018; 9:2929-2940. [PMID: 30036464 DOI: 10.1021/acschemneuro.8b00071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aβ peptide and hyper-phosphorylated microtubule associated protein (Tau) aggregation causes severe damage to both the neuron membrane and key signal processing microfilament (microtubule) in Alzheimer's disease (AD) brains. To date, the key challenge is to develop nontoxic, proteolytically stable amyloid inhibitors, which can simultaneously target multiple pathways involved in AD. Various attempts have been made in this direction; however, clinical outcomes of those attempts have been reported to be poor. Thus, we choose development of peptoid (N-substituted glycine oligomers)-based leads as potential AD therapeutics, which are easy to synthesize, found to be proteolytically stable, and exhibit excellent bioavailability. In this paper, we have designed and synthesized a new short peptoid for amyloid inhibition from 30-34 hydrophobic pocket of amyloid beta (Aβ) peptide. The peptoid selectively binds with 17-21 hydrophobic region of Aβ and inhibits Aβ fibril formation. Various in vitro assays suggested that our AI peptoid binds with tubulin/microtubule and promotes its polymerization and stability. This peptoid also inhibits AChE-induced Aβ fibril formation and provides significant neuroprotection against toxicity generated by nerve growth factor (NGF) deprived neurons derived from rat adrenal pheochromocytoma (PC12) cell line. Moreover, this peptoid shows serum stability and is noncytotoxic to primary rat cortical neurons.
Collapse
Affiliation(s)
- Krishnangsu Pradhan
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India
| | - Gaurav Das
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology Campus, 4 Raja S. C. Mullick Road, Kolkata 700032, West Bengal, India
| | - Prasenjit Mondal
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology Campus, 4 Raja S. C. Mullick Road, Kolkata 700032, West Bengal, India
| | - Juhee Khan
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology Campus, 4 Raja S. C. Mullick Road, Kolkata 700032, West Bengal, India
| | - Surajit Barman
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India
| | - Surajit Ghosh
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Biology Campus, 4 Raja S. C. Mullick Road, Kolkata 700032, West Bengal, India
| |
Collapse
|
6
|
Brahm K, Wack JS, Eckes S, Engemann V, Schmitz K. Macrocyclization enhances affinity of chemokine‐binding peptoids. Biopolymers 2018; 110:e23244. [DOI: 10.1002/bip.23244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/25/2018] [Accepted: 11/07/2018] [Indexed: 01/27/2023]
Affiliation(s)
- Kevin Brahm
- Clemens‐Schöpf‐Institute of Organic Chemistry and BiochemistryTU Darmstadt Darmstadt Germany
| | - Julia S. Wack
- Clemens‐Schöpf‐Institute of Organic Chemistry and BiochemistryTU Darmstadt Darmstadt Germany
| | - Stefanie Eckes
- Clemens‐Schöpf‐Institute of Organic Chemistry and BiochemistryTU Darmstadt Darmstadt Germany
| | - Victoria Engemann
- Clemens‐Schöpf‐Institute of Organic Chemistry and BiochemistryTU Darmstadt Darmstadt Germany
| | - Katja Schmitz
- Clemens‐Schöpf‐Institute of Organic Chemistry and BiochemistryTU Darmstadt Darmstadt Germany
| |
Collapse
|
7
|
Abstract
Over the past two decades, developing medical applications for peptides has, and continues to be a highly active area of research. At present there are over 60 peptide-based drugs on the market and more than 140 in various stages of clinical trials. The interest in peptide-based therapeutics arises from their biocompatibility and their ability to form defined secondary and tertiary structures, resulting in a high selectivity for complex targets. However, there are significant challenges associated with the development of peptide-based therapeutics, namely peptides are readily metabolised in vivo. Peptoids are an emerging class of peptidomimetic and they offer an alternative to peptides. Peptoids are comprised of N-substituted glycines where side-chains are located on the nitrogen atom of the amide backbone rather than the α-carbon as is the case in peptides. This change in structure confers a high degree of resistance to proteolytic degradation but the absence of any backbone hydrogen bonding means that peptoids exhibit a high degree of conformational flexibility. Cyclisation has been explored as one possible route to rigidify peptoid structures, making them more selective, and, therefore more desirable as potential therapeutics. This review outlines the various strategies that have been developed over the last decade to access new types of macrocyclic peptoids.
Collapse
Affiliation(s)
| | - Steven L. Cobb
- Department of ChemistryDurham UniversitySouth RoadDurhamDH1 3LEUK
| |
Collapse
|
8
|
Schettini R, Costabile C, Della Sala G, Buirey J, Tosolini M, Tecilla P, Vaccaro MC, Bruno I, De Riccardis F, Izzo I. Tuning the biomimetic performances of 4-hydroxyproline-containing cyclic peptoids. Org Biomol Chem 2018; 16:6708-6717. [DOI: 10.1039/c8ob01522h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Five new cyclic peptoids containing (2S,4R)-4-hydroxyproline (Hyp) residues have been designed and synthesized using a mixed “submonomer/monomer” approach.
Collapse
Affiliation(s)
- R. Schettini
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA) 84084
- Italy
| | - C. Costabile
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA) 84084
- Italy
| | - G. Della Sala
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA) 84084
- Italy
| | - J. Buirey
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA) 84084
- Italy
| | - M. Tosolini
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- Trieste 34127
- Italy
| | - P. Tecilla
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- Trieste 34127
- Italy
| | - M. C. Vaccaro
- Department of Pharmacy
- University of Salerno
- Fisciano (SA) 84084
- Italy
| | - I. Bruno
- Department of Pharmacy
- University of Salerno
- Fisciano (SA) 84084
- Italy
| | - F. De Riccardis
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA) 84084
- Italy
| | - I. Izzo
- Department of Chemistry and Biology “A. Zambelli”
- University of Salerno
- Fisciano (SA) 84084
- Italy
| |
Collapse
|
9
|
Hayakawa M, Ohsawa A, Takeda K, Torii R, Kitamura Y, Katagiri H, Ikeda M. Cyclic arylopeptoid oligomers: synthesis and conformational propensities of peptide-mimetic aromatic macrocycles. Org Biomol Chem 2018; 16:8505-8512. [DOI: 10.1039/c8ob01962b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Dynamic macrocyclic peptide-mimetic molecule bearing sequence-controlled side chains.
Collapse
Affiliation(s)
- Masahide Hayakawa
- Department of Life Science and Chemistry
- Graduate School of Natural Science and Technology
- Gifu University
- Gifu 501-1193
- Japan
| | - Ayaka Ohsawa
- Department of Life Science and Chemistry
- Graduate School of Natural Science and Technology
- Gifu University
- Gifu 501-1193
- Japan
| | - Kumi Takeda
- Department of Life Science and Chemistry
- Graduate School of Natural Science and Technology
- Gifu University
- Gifu 501-1193
- Japan
| | - Ryo Torii
- Department of Life Science and Chemistry
- Graduate School of Natural Science and Technology
- Gifu University
- Gifu 501-1193
- Japan
| | - Yoshiaki Kitamura
- Department of Life Science and Chemistry
- Graduate School of Natural Science and Technology
- Gifu University
- Gifu 501-1193
- Japan
| | - Hiroshi Katagiri
- Graduate School of Science and Engineering
- Yamagata University
- Yamagata 992-8510
- Japan
| | - Masato Ikeda
- Department of Life Science and Chemistry
- Graduate School of Natural Science and Technology
- Gifu University
- Gifu 501-1193
- Japan
| |
Collapse
|
10
|
Liu S, Park S, Allington G, Prelli F, Sun Y, Martá-Ariza M, Scholtzova H, Biswas G, Brown B, Verghese PB, Mehta PD, Kwon YU, Wisniewski T. Targeting Apolipoprotein E/Amyloid β Binding by Peptoid CPO_Aβ17-21 P Ameliorates Alzheimer's Disease Related Pathology and Cognitive Decline. Sci Rep 2017; 7:8009. [PMID: 28808293 PMCID: PMC5556019 DOI: 10.1038/s41598-017-08604-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 07/12/2017] [Indexed: 02/01/2023] Open
Abstract
Inheritance of the apolipoprotein E4 (apoE4) genotype has been identified as the major genetic risk factor for late onset Alzheimer's disease (AD). Studies have shown that apoE, apoE4 in particular, binds to amyloid-β (Aβ) peptides at residues 12-28 of Aβ and this binding modulates Aβ accumulation and disease progression. We have previously shown in several AD transgenic mice lines that blocking the apoE/Aβ interaction with Aβ12-28 P reduced Aβ and tau-related pathology, leading to cognitive improvements in treated AD mice. Recently, we have designed a small peptoid library derived from the Aβ12-28 P sequence to screen for new apoE/Aβ binding inhibitors with higher efficacy and safety. Peptoids are better drug candidates than peptides due to their inherently more favorable pharmacokinetic properties. One of the lead peptoid compounds, CPO_Aβ17-21 P, diminished the apoE/Aβ interaction and attenuated the apoE4 pro-fibrillogenic effects on Aβ aggregation in vitro as well as apoE4 potentiation of Aβ cytotoxicity. CPO_Aβ17-21 P reduced Aβ-related pathology coupled with cognitive improvements in an AD APP/PS1 transgenic mouse model. Our study suggests the non-toxic, non-fibrillogenic peptoid CPO_Aβ17-21 P has significant promise as a new AD therapeutic agent which targets the Aβ related apoE pathway, with improved efficacy and pharmacokinetic properties.
Collapse
Affiliation(s)
- Shan Liu
- Center for Cognitive Neurology, Department of Neurology, New York University School of Medicine, New York, USA
| | - Shinae Park
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, Korea
| | | | - Frances Prelli
- Center for Cognitive Neurology, Department of Neurology, New York University School of Medicine, New York, USA
| | - Yanjie Sun
- Center for Cognitive Neurology, Department of Neurology, New York University School of Medicine, New York, USA
| | - Mitchell Martá-Ariza
- Center for Cognitive Neurology, Department of Neurology, New York University School of Medicine, New York, USA
| | - Henrieta Scholtzova
- Center for Cognitive Neurology, Department of Neurology, New York University School of Medicine, New York, USA
| | - Goutam Biswas
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, Korea
| | - Bernard Brown
- Center for Cognitive Neurology, Department of Neurology, New York University School of Medicine, New York, USA
| | - Philip B Verghese
- C2N Diagnostics, Center for Emerging Technologies, 4041 Forest Park Avenue, St. Louis, MO, 63108, USA
| | - Pankaj D Mehta
- Department of Immunology, New York State Institute for Basic Research in Developmental Disabilities, New York, USA
| | - Yong-Uk Kwon
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, Korea.
| | - Thomas Wisniewski
- Center for Cognitive Neurology, Departments of Neurology, Psychiatry and Pathology, Neuroscience Institute, New York University School of Medicine, New York, USA.
| |
Collapse
|
11
|
|
12
|
Ganesh SD, Saha N, Zandraa O, Zuckermann RN, Sáha P. Peptoids and polypeptoids: biomimetic and bioinspired materials for biomedical applications. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-016-1902-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
13
|
Robertson EJ, Nehls EM, Zuckermann RN. Structure-Rheology Relationship in Nanosheet-Forming Peptoid Monolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:12146-12158. [PMID: 27794613 DOI: 10.1021/acs.langmuir.6b02736] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Peptoid nanosheets are novel protein-mimetic materials that form from the supramolecular assembly of sequence-defined peptoid polymers. The component polymer chains organize themselves via a unique mechanism at the air-water interface, in which the collapse of a compressed peptoid monolayer results in free-floating, bilayer nanosheets. To impart functionality into these bilayer materials, structural engineering of the nanosheet-forming peptoid strand is necessary. We previously synthesized a series of peptoid analogues with modifications to the hydrophobic core in order to probe the nanosheet tolerance to different packing interactions. Although many substitutions were well-tolerated, routine surface pressure measurements and monolayer collapse isotherms were insufficient to explain which molecular processes contributed to the ability or inability of these peptoid analogues to form nanosheets. Here, we show that surface dilational rheology measurements of assembled peptoid monolayers at the air-water interface provide great insight into their nanosheet-forming ability. We find that a key property required for nanosheet formation is the ability to assemble into a solidlike monolayer in which the residence time of the peptoid within the monolayer is very long and does not exchange rapidly with the subphase. These collapse-competent monolayers typically have a characteristic time of diffusion-exchange values, τD, of >5000 s. Thus, rheological measurements provide an efficient method for assessing the nanosheet-forming ability of peptoid analogues. Results from these studies can be used to guide the rational design of peptoids for assembly into functional nanosheets.
Collapse
Affiliation(s)
- Ellen J Robertson
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Eric Michael Nehls
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Ronald N Zuckermann
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| |
Collapse
|
14
|
Robertson EJ, Proulx C, Su JK, Garcia RL, Yoo S, Nehls EM, Connolly MD, Taravati L, Zuckermann RN. Molecular Engineering of the Peptoid Nanosheet Hydrophobic Core. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:11946-11957. [PMID: 27794618 DOI: 10.1021/acs.langmuir.6b02735] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The relationship between the structure of sequence-defined peptoid polymers and their ability to assemble into well-defined nanostructures is important to the creation of new bioinspired platforms with sophisticated functionality. Here, the hydrophobic N-(2-phenylethyl)glycine (Npe) monomers of the standard nanosheet-forming peptoid sequence were modified in an effort to (1) produce nanosheets from relatively short peptoids, (2) inhibit the aggregation of peptoids in bulk solution, (3) increase nanosheet stability by promoting packing interactions within the hydrophobic core, and (4) produce nanosheets with a nonaromatic hydrophobic core. Fluorescence and optical microscopy of individual nanosheets reveal that certain modifications to the hydrophobic core were well tolerated, whereas others resulted in instability or aggregation or prevented assembly. Importantly, we demonstrate that substitution at the meta and para positions of the Npe aromatic ring are well tolerated, enabling significant opportunities to tune the functional properties of peptoid nanosheets. We also found that N-aryl glycine monomers inhibit nanosheet formation, whereas branched aliphatic monomers have the ability to form nanosheets. An analysis of the crystal structures of several N,N'-disubstituted diketopiperazines (DKPs), a simple model system, revealed that the preferred solid-state packing arrangement of the hydrophobic groups can directly inform the assembly of stable peptoid nanosheets.
Collapse
Affiliation(s)
- Ellen J Robertson
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Caroline Proulx
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Jessica K Su
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Rita L Garcia
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Stan Yoo
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Eric M Nehls
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Michael D Connolly
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Laudann Taravati
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Ronald N Zuckermann
- Molecular Foundry, Lawrence Berkeley National Laboratory , 1 Cyclotron Road, Berkeley, California 94720, United States
| |
Collapse
|
15
|
Robertson EJ, Battigelli A, Proulx C, Mannige RV, Haxton TK, Yun L, Whitelam S, Zuckermann RN. Design, Synthesis, Assembly, and Engineering of Peptoid Nanosheets. Acc Chem Res 2016; 49:379-89. [PMID: 26741294 DOI: 10.1021/acs.accounts.5b00439] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Two-dimensional (2D) atomically defined organic nanomaterials are an important material class with broad applications. However, few general synthetic methods exist to produce such materials in high yields and to precisely functionalize them. One strategy to form ordered 2D organic nanomaterials is through the supramolecular assembly of sequence-defined synthetic polymers. Peptoids, one such class of polymer, are designable bioinspired heteropolymers whose main-chain length and monomer sequence can be precisely controlled. We have recently discovered that individual peptoid polymers with a simple sequence of alternating hydrophobic and ionic monomers can self-assemble into highly ordered, free-floating nanosheets. A detailed understanding of their molecular structure and supramolecular assembly dynamics provides a robust platform for the discovery of new classes of nanosheets with tunable properties and novel applications. In this Account, we discuss the discovery, characterization, assembly, molecular modeling, and functionalization of peptoid nanosheets. The fundamental properties of peptoid nanosheets, their mechanism of formation, and their application as robust scaffolds for molecular recognition and as templates for the growth of inorganic minerals have been probed by an arsenal of experimental characterization techniques (e.g., scanning probe, electron, and optical microscopy, X-ray diffraction, surface-selective vibrational spectroscopy, and surface tensiometry) and computational techniques (coarse-grained and atomistic modeling). Peptoid nanosheets are supramolecular assemblies of 16-42-mer chains that form molecular bilayers. They span tens of microns in lateral dimensions and freely float in water. Their component chains are highly ordered, with chains nearly fully extended and packed parallel to one another as a result of hydrophobic and electrostatic interactions. Nanosheets form via a novel interface-catalyzed monolayer collapse mechanism. Peptoid chains first assemble into a monolayer at either an air-water or oil-water interface, on which peptoid chains extend, order, and pack into a brick-like pattern. Upon mechanical compression of the interface, the monolayer buckles into stable bilayer structures. Recent work has focused on the design of nanosheets with tunable properties and functionality. They are readily engineerable, as functional monomers can be readily incorporated onto the nanosheet surface or into the interior. For example, functional hydrophilic "loops" have been displayed on the surfaces of nanosheets. These loops can interact with specific protein targets, serving as a potentially general platform for molecular recognition. Nanosheets can also bind metal ions and serve as 2D templates for mineral growth. Through our understanding of the formation mechanism, along with predicted features ascertained from molecular modeling, we aim to further design and synthesize nanosheets as robust protein mimetics with the potential for unprecedented functionality and stability.
Collapse
Affiliation(s)
- Ellen J. Robertson
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Alessia Battigelli
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Caroline Proulx
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Ranjan V. Mannige
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Thomas K. Haxton
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Lisa Yun
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Stephen Whitelam
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Ronald N. Zuckermann
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| |
Collapse
|
16
|
Gangloff N, Ulbricht J, Lorson T, Schlaad H, Luxenhofer R. Peptoids and Polypeptoids at the Frontier of Supra- and Macromolecular Engineering. Chem Rev 2015; 116:1753-802. [DOI: 10.1021/acs.chemrev.5b00201] [Citation(s) in RCA: 190] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Niklas Gangloff
- Functional Polymer
Materials, Chair for Chemical Technology of Materials Synthesis, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Juliane Ulbricht
- Functional Polymer
Materials, Chair for Chemical Technology of Materials Synthesis, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Thomas Lorson
- Functional Polymer
Materials, Chair for Chemical Technology of Materials Synthesis, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| | - Helmut Schlaad
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Robert Luxenhofer
- Functional Polymer
Materials, Chair for Chemical Technology of Materials Synthesis, University of Würzburg, Röntgenring 11, 97070 Würzburg, Germany
| |
Collapse
|
17
|
Jobin S, Vézina-Dawod S, Herby C, Derson A, Biron E. Preparation of N-Substituted N-Arylsulfonylglycines and Their Use in Peptoid Synthesis. Org Lett 2015; 17:5626-9. [DOI: 10.1021/acs.orglett.5b02862] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Steve Jobin
- Faculty of Pharmacy, Université Laval, Québec, Québec G1V 0A6, Canada
- Laboratory
of Medicinal Chemistry, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, Québec, Québec G1V 4G2, Canada
| | - Simon Vézina-Dawod
- Faculty of Pharmacy, Université Laval, Québec, Québec G1V 0A6, Canada
- Laboratory
of Medicinal Chemistry, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, Québec, Québec G1V 4G2, Canada
| | - Claire Herby
- Faculty of Pharmacy, Université Laval, Québec, Québec G1V 0A6, Canada
- Laboratory
of Medicinal Chemistry, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, Québec, Québec G1V 4G2, Canada
| | - Antoine Derson
- Faculty of Pharmacy, Université Laval, Québec, Québec G1V 0A6, Canada
- Laboratory
of Medicinal Chemistry, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, Québec, Québec G1V 4G2, Canada
| | - Eric Biron
- Faculty of Pharmacy, Université Laval, Québec, Québec G1V 0A6, Canada
- Laboratory
of Medicinal Chemistry, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, Québec, Québec G1V 4G2, Canada
| |
Collapse
|