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Yadav S, Sharma AK, Kumar P. Nanoscale Self-Assembly for Therapeutic Delivery. Front Bioeng Biotechnol 2020; 8:127. [PMID: 32158749 PMCID: PMC7051917 DOI: 10.3389/fbioe.2020.00127] [Citation(s) in RCA: 117] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 02/10/2020] [Indexed: 12/23/2022] Open
Abstract
Self-assembly is the process of association of individual units of a material into highly arranged/ordered structures/patterns. It imparts unique properties to both inorganic and organic structures, so generated, via non-covalent interactions. Currently, self-assembled nanomaterials are finding a wide variety of applications in the area of nanotechnology, imaging techniques, biosensors, biomedical sciences, etc., due to its simplicity, spontaneity, scalability, versatility, and inexpensiveness. Self-assembly of amphiphiles into nanostructures (micelles, vesicles, and hydrogels) happens due to various physical interactions. Recent advancements in the area of drug delivery have opened up newer avenues to develop novel drug delivery systems (DDSs) and self-assembled nanostructures have shown their tremendous potential to be used as facile and efficient materials for this purpose. The main objective of the projected review is to provide readers a concise and straightforward knowledge of basic concepts of supramolecular self-assembly process and how these highly functionalized and efficient nanomaterials can be useful in biomedical applications. Approaches for the self-assembly have been discussed for the fabrication of nanostructures. Advantages and limitations of these systems along with the parameters that are to be taken into consideration while designing a therapeutic delivery vehicle have also been outlined. In this review, various macro- and small-molecule-based systems have been elaborated. Besides, a section on DNA nanostructures as intelligent materials for future applications is also included.
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Affiliation(s)
| | | | - Pradeep Kumar
- Nucleic Acids Research Laboratory, CSIR Institute of Genomics and Integrative Biology, Delhi, India
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Zhang RS, Xu HJ, Jiang JH, Han RW, Chang M, Peng YL, Wang Y, Wang R. Endomorphin-1 attenuates Aβ42 induced impairment of novel object and object location recognition tasks in mice. Brain Res 2015; 1629:210-20. [DOI: 10.1016/j.brainres.2015.10.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Revised: 10/14/2015] [Accepted: 10/15/2015] [Indexed: 02/07/2023]
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Tonelli M, Catto M, Tasso B, Novelli F, Canu C, Iusco G, Pisani L, Stradis AD, Denora N, Sparatore A, Boido V, Carotti A, Sparatore F. Multitarget Therapeutic Leads for Alzheimer's Disease: Quinolizidinyl Derivatives of Bi- and Tricyclic Systems as Dual Inhibitors of Cholinesterases and β-Amyloid (Aβ) Aggregation. ChemMedChem 2015; 10:1040-53. [PMID: 25924599 DOI: 10.1002/cmdc.201500104] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Indexed: 12/23/2022]
Abstract
Multitarget therapeutic leads for Alzheimer's disease were designed on the models of compounds capable of maintaining or restoring cell protein homeostasis and of inhibiting β-amyloid (Aβ) oligomerization. Thirty-seven thioxanthen-9-one, xanthen-9-one, naphto- and anthraquinone derivatives were tested for the direct inhibition of Aβ(1-40) aggregation and for the inhibition of electric eel acetylcholinesterase (eeAChE) and horse serum butyrylcholinesterase (hsBChE). These compounds are characterized by basic side chains, mainly quinolizidinylalkyl moieties, linked to various bi- and tri-cyclic (hetero)aromatic systems. With very few exceptions, these compounds displayed inhibitory activity on both AChE and BChE and on the spontaneous aggregation of β-amyloid. In most cases, IC50 values were in the low micromolar and sub-micromolar range, but some compounds even reached nanomolar potency. The time course of amyloid aggregation in the presence of the most active derivative (IC50 =0.84 μM) revealed that these compounds might act as destabilizers of mature fibrils rather than mere inhibitors of fibrillization. Many compounds inhibited one or both cholinesterases and Aβ aggregation with similar potency, a fundamental requisite for the possible development of therapeutics exhibiting a multitarget mechanism of action. The described compounds thus represent interesting leads for the development of multitarget AD therapeutics.
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Affiliation(s)
- Michele Tonelli
- Dipartimento di Farmacia, Università degli Studi di Genova, V. le Benedetto XV, 3, 16132 Genova (Italy).
| | - Marco Catto
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", V. Orabona 4, 70125 Bari (Italy).
| | - Bruno Tasso
- Dipartimento di Farmacia, Università degli Studi di Genova, V. le Benedetto XV, 3, 16132 Genova (Italy)
| | - Federica Novelli
- Dipartimento di Farmacia, Università degli Studi di Genova, V. le Benedetto XV, 3, 16132 Genova (Italy)
| | - Caterina Canu
- Dipartimento di Farmacia, Università degli Studi di Genova, V. le Benedetto XV, 3, 16132 Genova (Italy)
| | - Giovanna Iusco
- Dipartimento di Farmacia, Università degli Studi di Genova, V. le Benedetto XV, 3, 16132 Genova (Italy)
| | - Leonardo Pisani
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", V. Orabona 4, 70125 Bari (Italy)
| | - Angelo De Stradis
- Istituto di Virologia Vegetale del CNR, Università degli Studi di Bari "Aldo Moro", V. Amendola 165A, 70126 Bari (Italy)
| | - Nunzio Denora
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", V. Orabona 4, 70125 Bari (Italy)
| | - Anna Sparatore
- Dipartimento di Scienze Farmaceutiche "P. Pratesi", Università degli Studi di Milano, V. Mangiagalli 25, 20133 Milano (Italy)
| | - Vito Boido
- Dipartimento di Farmacia, Università degli Studi di Genova, V. le Benedetto XV, 3, 16132 Genova (Italy)
| | - Angelo Carotti
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "Aldo Moro", V. Orabona 4, 70125 Bari (Italy)
| | - Fabio Sparatore
- Dipartimento di Farmacia, Università degli Studi di Genova, V. le Benedetto XV, 3, 16132 Genova (Italy)
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Panda JJ, Chauhan VS. Short peptide based self-assembled nanostructures: implications in drug delivery and tissue engineering. Polym Chem 2014. [DOI: 10.1039/c4py00173g] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Self-assembling peptides with many potential biomedical applications.
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Affiliation(s)
- Jiban Jyoti Panda
- International Centre for Genetic Engineering and Biotechnology
- New Delhi 110067, India
- Institute of Nano Science and Technology
- Mohali, India
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Scherzer-Attali R, Convertino M, Pellarin R, Gazit E, Segal D, Caflisch A. Methylations of tryptophan-modified naphthoquinone affect its inhibitory potential toward Aβ aggregation. J Phys Chem B 2013; 117:1780-9. [PMID: 23259849 DOI: 10.1021/jp309066p] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Aggregation of amyloid beta (Aβ) is the hallmark of Alzheimer's disease (AD). Small molecules inhibiting Aβ can be valuable therapeutics for AD. We have previously reported that 1,4-naphthoquinon-2-yl-l-tryptophan (NQTrp), reduces aggregation and oligomerization of Aβ in vitro and in vivo. In silico analysis further showed that certain functional groups of NQTrp, not in the aromatic rings, are also involved in binding and inhibiting Aβ. To better understand the exact mode of action and identify the groups crucial for NQTrp inhibitory activity, we conducted structure-activity analysis. Four derivatives of NQTrp were studied in silico: a D-isomer, two single-methylated and one double-methylated derivative. In silico results showed that the NQTrp groups involved in hydrogen bonds are the anilinic NH (i.e., the NH linker between the quinone and tryptophan moieties), the quinonic carbonyls, and the carboxylic acid. These predictions were supported by in vitro results. Our results should aid in designing improved small-molecule inhibitors of Aβ aggregation for treating AD.
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Affiliation(s)
- Roni Scherzer-Attali
- Department of Molecular Microbiology and Biotechnology, Tel-Aviv University, Tel-Aviv 69978, Israel
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Verma S, Singh A, Mishra A. The effect of fulvic acid on pre‐ and postaggregation state of Aβ17–42: Molecular dynamics simulation studies. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2013; 1834:24-33. [DOI: 10.1016/j.bbapap.2012.08.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2012] [Revised: 07/25/2012] [Accepted: 08/20/2012] [Indexed: 11/25/2022]
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Shaltiel-Karyo R, Davidi D, Frenkel-Pinter M, Ovadia M, Segal D, Gazit E. Differential inhibition of α-synuclein oligomeric and fibrillar assembly in parkinson's disease model by cinnamon extract. Biochim Biophys Acta Gen Subj 2012; 1820:1628-35. [DOI: 10.1016/j.bbagen.2012.04.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 04/05/2012] [Accepted: 04/25/2012] [Indexed: 11/26/2022]
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Frydman-Marom A, Convertino M, Pellarin R, Lampel A, Shaltiel-Karyo R, Segal D, Caflisch A, Shalev DE, Gazit E. Structural basis for inhibiting β-amyloid oligomerization by a non-coded β-breaker-substituted endomorphin analogue. ACS Chem Biol 2011; 6:1265-76. [PMID: 21892833 DOI: 10.1021/cb200103h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The distribution of endomorphins (EM) 1 and 2 in the human brain inversely correlates with cerebral neurodegeneration in Alzheimer's disease (AD), implying a protective role. These endogenous opioid peptides incorporate aromatic residues and a β-breaker motif, as seen in several optimized inhibitors of Aβ aggregation. The activity of native endomorphins was studied, as well as the rationally designed analogue Aib-1, which includes a remarkably efficient β-breaker, α-aminoisobutyric acid (Aib). In vitro and GFP fusion protein assays showed that Aib-1 interacted with Aβ and markedly inhibited the formation of toxic oligomer and fibril growth. Moreover, Aib-1 prevented the toxicity of Aβ toward neuronal PC12 cells and markedly rectified reduced longevity of an AD fly model. Atomistic simulations and NMR-derived solution structures revealed that Aib-1 significantly reduced the propensity of Aβ to aggregate due to multimode interactions including aromatic, hydrophobic, and polar contacts. We suggest that hindering the self-assembly process by interfering with the aromatic core of amyloidogenic peptides may pave the way toward developing therapeutic agents to treat amyloid-associated diseases.
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Affiliation(s)
- Anat Frydman-Marom
- Department of Molecular Microbiology & Biotechnology, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Marino Convertino
- Department of Biochemistry, University of Zurich, CH-8057 Zurich, Switzerland
| | - Riccardo Pellarin
- Department of Biochemistry, University of Zurich, CH-8057 Zurich, Switzerland
| | - Ayala Lampel
- Department of Molecular Microbiology & Biotechnology, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Ronit Shaltiel-Karyo
- Department of Molecular Microbiology & Biotechnology, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Daniel Segal
- Department of Molecular Microbiology & Biotechnology, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Amedeo Caflisch
- Department of Biochemistry, University of Zurich, CH-8057 Zurich, Switzerland
| | - Deborah E. Shalev
- Wolfson Centre for Applied Structural Biology, Hebrew University of Jerusalem, Safra Campus, Givat Ram, Jerusalem 91904, Israel
| | - Ehud Gazit
- Department of Molecular Microbiology & Biotechnology, Tel-Aviv University, Tel-Aviv 69978, Israel
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Frydman-Marom A, Shaltiel-Karyo R, Moshe S, Gazit E. The generic amyloid formation inhibition effect of a designed small aromatic β-breaking peptide. Amyloid 2011; 18:119-27. [PMID: 21651439 DOI: 10.3109/13506129.2011.582902] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The development of generic inhibitors in order to control the formation of amyloid fibrils and early oligomers is still an unmet medical need. As it is hypothesized that amyloid assemblies represent a generic protein supramolecular structure of low free energy, targeting the key molecular recognition and self-assembly events may provide the route for the development of such potential therapeutic agents. We have previously demonstrated the ability of hybrid molecules composed of an aromatic moiety and the α-aminoisobutyric acid β-sheet breaker elements to act as excellent inhibitors of amyloid fibril formation. Specifically, the D-Trp-Aib was shown to be a superb inhibitor of the formation of Alzheimer's disease β-amyloid fibrils and oligomers both in vitro and in vivo. Here, we demonstrate that the rationally designed molecule has the generic ability to inhibit amyloid fibril formation by calcitonin, α-synuclein, and the islet amyloid polypeptide. Moreover, we demonstrate the inability of two modified peptides, D-Ala-Aib and D-Trp-Ala, to inhibit and disassemble amyloid fibril formation, a fact that provides an additional evidence for the suggested structural basis of the inhibitor activity. Taken together, we believe that the use of β-breaker elements combined with aromatic moiety may present a promising approach for the development of fibrillization inhibition drug candidate.
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Affiliation(s)
- Anat Frydman-Marom
- Department of Molecular Microbiology & Biotechnology, Tel-Aviv University, Tel-Aviv, Israel
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Yoshiya T, Higa A, Abe N, Fukao F, Kuruma T, Toda Y, Sohma Y, Kiso Y. Click Peptide concept: o-acyl isopeptide of islet amyloid polypeptide as a nonaggregative precursor molecule. Chembiochem 2011; 12:1216-22. [PMID: 21538760 DOI: 10.1002/cbic.201100025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Indexed: 12/24/2022]
Abstract
The O-acyl isopeptide (1) of islet amyloid polypeptide (IAPP), which contains an ester moiety at both Ala8-Thr9 and Ser19-Ser20, was prepared by sequential segment condensation based on the O-acyl isopeptide method. Isopeptide 1 possessed nonaggregative properties, retaining its random coil structure under the acidic conditions; this suggests that the insertion of the O-acyl isopeptide structures in IAPP suppressed aggregation of the molecule. As a result of the rapid O-to-N acyl shift of 1 under neutral pH, in situ-formed IAPP adopted a random-coil structure at the start of the experiment, and then underwent conformational change to α-helix/β-sheet mixed structures as well as aggregation. The click peptide strategy with the nonaggregative precursor molecule 1 could be a useful experimental tool to identify the functions of IAPP, by overcoming the handling difficulties that arise from IAPP's intense and uncontrollable self-assembling nature.
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Affiliation(s)
- Taku Yoshiya
- Kyoto Pharmaceutical University, Department of Medicinal Chemistry, Center for Frontier Research in Medicinal Science, Yamashina-ku, Kyoto, Japan
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Designed peptides as model self-assembling nanosystems: characterization and potential biomedical applications. Ther Deliv 2011; 2:193-204. [DOI: 10.4155/tde.10.93] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Synthesis of nanomaterials via ‘molecular self-assembly’ allows one to define the properties of the nanomaterial by rational design of the individual constituents. Use of peptides for self-assembly offers the ease of design and synthesis, and provides higher biofunctionality and biocompatibility to nanomaterials. Our work focused on the synthesis, characterization and potential biomedical applications of small self-assembled peptide-based nanosystems. We demonstrated that dipeptides containing the conformational restricting residue α,β-dehydrophenylalanine, self-assembled into nanovesicular and nanotubular structures. The nanosystems could encapsulate and release anticancer drugs, showed enhanced stability to proteinase K degradation, a property crucial for them to have a high in vivo half-life, and exhibited no cytotoxicity towards cultured mammalian cells. The dipeptide nanostructures were easily taken up by cells and could evade uptake by reticuloendothelial systems when injected into healthy laboratory animals. Thus, small self-assembling peptides may offer novel scaffolds for the future design of nanostructures with potential applications in the field of drug delivery.
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Frydman-Marom A, Levin A, Farfara D, Benromano T, Scherzer-Attali R, Peled S, Vassar R, Segal D, Gazit E, Frenkel D, Ovadia M. Orally administrated cinnamon extract reduces β-amyloid oligomerization and corrects cognitive impairment in Alzheimer's disease animal models. PLoS One 2011; 6:e16564. [PMID: 21305046 PMCID: PMC3030596 DOI: 10.1371/journal.pone.0016564] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Accepted: 01/05/2011] [Indexed: 01/08/2023] Open
Abstract
An increasing body of evidence indicates that accumulation of soluble oligomeric assemblies of β-amyloid polypeptide (Aβ) play a key role in Alzheimer's disease (AD) pathology. Specifically, 56 kDa oligomeric species were shown to be correlated with impaired cognitive function in AD model mice. Several reports have documented the inhibition of Aβ plaque formation by compounds from natural sources. Yet, evidence for the ability of common edible elements to modulate Aβ oligomerization remains an unmet challenge. Here we identify a natural substance, based on cinnamon extract (CEppt), which markedly inhibits the formation of toxic Aβ oligomers and prevents the toxicity of Aβ on neuronal PC12 cells. When administered to an AD fly model, CEppt rectified their reduced longevity, fully recovered their locomotion defects and totally abolished tetrameric species of Aβ in their brain. Furthermore, oral administration of CEppt to an aggressive AD transgenic mice model led to marked decrease in 56 kDa Aβ oligomers, reduction of plaques and improvement in cognitive behavior. Our results present a novel prophylactic approach for inhibition of toxic oligomeric Aβ species formation in AD through the utilization of a compound that is currently in use in human diet.
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Affiliation(s)
- Anat Frydman-Marom
- Department of Molecular Microbiology and Biotechnology, Tel Aviv University, Tel Aviv, Israel
| | - Aviad Levin
- Department of Zoology, Tel Aviv University, Tel Aviv, Israel
| | - Dorit Farfara
- Department of Neurobiology, Tel Aviv University, Tel Aviv, Israel
| | - Tali Benromano
- Department of Neurobiology, Tel Aviv University, Tel Aviv, Israel
| | - Roni Scherzer-Attali
- Department of Molecular Microbiology and Biotechnology, Tel Aviv University, Tel Aviv, Israel
| | - Sivan Peled
- Department of Molecular Microbiology and Biotechnology, Tel Aviv University, Tel Aviv, Israel
| | - Robert Vassar
- Department of Cell and Molecular Biology, Northwestern University, Chicago, Illinois, United States of America
| | - Daniel Segal
- Department of Molecular Microbiology and Biotechnology, Tel Aviv University, Tel Aviv, Israel
| | - Ehud Gazit
- Department of Molecular Microbiology and Biotechnology, Tel Aviv University, Tel Aviv, Israel
| | - Dan Frenkel
- Department of Neurobiology, Tel Aviv University, Tel Aviv, Israel
| | - Michael Ovadia
- Department of Zoology, Tel Aviv University, Tel Aviv, Israel
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Campagna F, Catto M, Purgatorio R, Altomare CD, Carotti A, De Stradis A, Palazzo G. Synthesis and biophysical evaluation of arylhydrazono-1H-2-indolinones as β-amyloid aggregation inhibitors. Eur J Med Chem 2011; 46:275-84. [DOI: 10.1016/j.ejmech.2010.11.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Revised: 11/10/2010] [Accepted: 11/10/2010] [Indexed: 12/26/2022]
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14
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Scherzer-Attali R, Pellarin R, Convertino M, Frydman-Marom A, Egoz-Matia N, Peled S, Levy-Sakin M, Shalev DE, Caflisch A, Gazit E, Segal D. Complete phenotypic recovery of an Alzheimer's disease model by a quinone-tryptophan hybrid aggregation inhibitor. PLoS One 2010; 5:e11101. [PMID: 20559435 PMCID: PMC2885425 DOI: 10.1371/journal.pone.0011101] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Accepted: 05/20/2010] [Indexed: 11/29/2022] Open
Abstract
The rational design of amyloid oligomer inhibitors is yet an unmet drug development need. Previous studies have identified the role of tryptophan in amyloid recognition, association and inhibition. Furthermore, tryptophan was ranked as the residue with highest amyloidogenic propensity. Other studies have demonstrated that quinones, specifically anthraquinones, can serve as aggregation inhibitors probably due to the dipole interaction of the quinonic ring with aromatic recognition sites within the amyloidogenic proteins. Here, using in vitro, in vivo and in silico tools we describe the synthesis and functional characterization of a rationally designed inhibitor of the Alzheimer's disease-associated β-amyloid. This compound, 1,4-naphthoquinon-2-yl-L-tryptophan (NQTrp), combines the recognition capacities of both quinone and tryptophan moieties and completely inhibited Aβ oligomerization and fibrillization, as well as the cytotoxic effect of Aβ oligomers towards cultured neuronal cell line. Furthermore, when fed to transgenic Alzheimer's disease Drosophila model it prolonged their life span and completely abolished their defective locomotion. Analysis of the brains of these flies showed a significant reduction in oligomeric species of Aβ while immuno-staining of the 3rd instar larval brains showed a significant reduction in Aβ accumulation. Computational studies, as well as NMR and CD spectroscopy provide mechanistic insight into the activity of the compound which is most likely mediated by clamping of the aromatic recognition interface in the central segment of Aβ. Our results demonstrate that interfering with the aromatic core of amyloidogenic peptides is a promising approach for inhibiting various pathogenic species associated with amyloidogenic diseases. The compound NQTrp can serve as a lead for developing a new class of disease modifying drugs for Alzheimer's disease.
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Affiliation(s)
- Roni Scherzer-Attali
- Department of Molecular Microbiology and Biotechnology, Tel-Aviv University, Tel-Aviv, Israel
| | - Riccardo Pellarin
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Marino Convertino
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Anat Frydman-Marom
- Department of Molecular Microbiology and Biotechnology, Tel-Aviv University, Tel-Aviv, Israel
| | - Nirit Egoz-Matia
- Department of Molecular Microbiology and Biotechnology, Tel-Aviv University, Tel-Aviv, Israel
| | - Sivan Peled
- Department of Molecular Microbiology and Biotechnology, Tel-Aviv University, Tel-Aviv, Israel
| | - Michal Levy-Sakin
- Department of Molecular Microbiology and Biotechnology, Tel-Aviv University, Tel-Aviv, Israel
| | - Deborah E. Shalev
- Wolfson Centre for Applied Structural Biology, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Amedeo Caflisch
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Ehud Gazit
- Department of Molecular Microbiology and Biotechnology, Tel-Aviv University, Tel-Aviv, Israel
- * E-mail: (EG); (DS)
| | - Daniel Segal
- Department of Molecular Microbiology and Biotechnology, Tel-Aviv University, Tel-Aviv, Israel
- * E-mail: (EG); (DS)
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Cognitive-Performance Recovery of Alzheimer's Disease Model Mice by Modulation of Early Soluble Amyloidal Assemblies. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200802123] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Frydman-Marom A, Rechter M, Shefler I, Bram Y, Shalev D, Gazit E. Cognitive-Performance Recovery of Alzheimer's Disease Model Mice by Modulation of Early Soluble Amyloidal Assemblies. Angew Chem Int Ed Engl 2009; 48:1981-6. [DOI: 10.1002/anie.200802123] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Taniguchi A, Skwarczynski M, Sohma Y, Okada T, Ikeda K, Prakash H, Mukai H, Hayashi Y, Kimura T, Hirota S, Matsuzaki K, Kiso Y. Controlled Production of Amyloid β Peptide from a Photo-Triggered, Water-Soluble Precursor “Click Peptide“. Chembiochem 2008; 9:3055-65. [DOI: 10.1002/cbic.200800503] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Cherny I, Gazit E. Amyloids: not only pathological agents but also ordered nanomaterials. Angew Chem Int Ed Engl 2008; 47:4062-9. [PMID: 18412209 DOI: 10.1002/anie.200703133] [Citation(s) in RCA: 490] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Amyloid fibers constitute one of the most abundant and important naturally occurring self-associated assemblies. A variety of protein and peptide molecules with various amino acid sequences form these highly stable and well-organized assemblies under diverse conditions. These assemblies display phase states ranging from liquid crystals to rigid nanotubes. The potential applications of these supramolecular assemblies exceed those of synthetic polymers since the building blocks may introduce biological function in addition to mechanical properties. Here we review the structural characteristics of amyloidal supramolecular assemblies, their potential use as either natural or de novo designed sequences, and the range of applications that have been demonstrated so far.
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Affiliation(s)
- Izhack Cherny
- The Department of Molecular Microbiology and Biotechnology, Tel Aviv University, Tel Aviv 69978, Israel
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Cherny I, Gazit E. Amyloide: nicht nur pathologische Substanzen, sondern auch geordnete Nanomaterialien. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200703133] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Sohma Y, Kiso Y. "Click peptides"--chemical biology-oriented synthesis of Alzheimer's disease-related amyloid beta peptide (abeta) analogues based on the "O-acyl isopeptide method". Chembiochem 2007; 7:1549-57. [PMID: 16915597 DOI: 10.1002/cbic.200600112] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A clear understanding of the pathological mechanism of amyloid beta peptide (Abeta) 1-42, a currently unexplained process, would be of great significance for the discovery of novel drug targets for Alzheimer's disease (AD) therapy. To date, though, the elucidation of these Abeta1-42 dynamic events has been a difficult issue because of uncontrolled polymerization, which also poses a significant obstacle in establishing experimental systems with which to clarify the pathological function of Abeta1-42. We have recently developed chemical biology-oriented pH- or phototriggered "click peptide" isoform precursors of Abeta1-42, based on the "O-acyl isopeptide method", in which a native amide bond at a hydroxyamino acid residue, such as Ser, is isomerized to an ester bond, the target peptide subsequently being generated by an O-N intramolecular acyl migration reaction. These click peptide precursors did not exhibit any self-assembling character under physiological conditions, thanks to the presence of the one single ester bond, and were able to undergo migration to give the target Abeta1-42 in a quick and easy, one-way (so-called "click")conversion reaction. The use of click peptides could be a useful strategy to investigate the biological functions of Abeta1-42 in AD through inducible activation of Abeta1-42 self-assembly.
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Affiliation(s)
- Youhei Sohma
- Department of Medicinal Chemistry Center for Frontier Research in Medicinal Science 21st Century COE Program, Kyoto Pharmaceutical University Yamashina-ku, Kyoto 607-8412, Japan
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Ray S, G. B. Drew M, Kumar Das A, Banerjee A. Supramolecular β-Sheet and Nanofibril Formation by Self-assembling Tripeptides Containing an N-terminally Located γ-Aminobutyric acid Residue. Supramol Chem 2006. [DOI: 10.1080/10610270600677033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Sudipta Ray
- a Indian Association for the Cultivation of Science, Department of Biological Chemistry , Jadavpur, Kolkata, 700032, India
| | - Michael G. B. Drew
- b School of Chemistry, The University of Reading , Whiteknights, Reading, RG6 6AD, UK
| | - Apurba Kumar Das
- a Indian Association for the Cultivation of Science, Department of Biological Chemistry , Jadavpur, Kolkata, 700032, India
| | - Arindam Banerjee
- a Indian Association for the Cultivation of Science, Department of Biological Chemistry , Jadavpur, Kolkata, 700032, India
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Gazit E. From green bacteria to human dementia: a novel model for discovering amyloid assembly inhibitors. ACS Chem Biol 2006; 1:417-9. [PMID: 17168517 DOI: 10.1021/cb600328c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The formation of amyloid assemblies is associated with major human disorders. Yet no therapeutic agents presently exist to control this process. In a recent paper, a new bacterial system is described that uses a fusion of the Alzheimer's disease beta-amyloid polypeptide to the GFP. The assay detects the formation of small, soluble amyloid intermediates associated with degenerative diseases. This assay allows the researchers to use high-throughput screening methods to find inhibitors of the formation of amyloid assemblies.
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Affiliation(s)
- Ehud Gazit
- Department of Molecular Microbiology and Biotechnology, Tel Aviv University, Tel Aviv 69978, Israel.
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Taniguchi A, Sohma Y, Kimura M, Okada T, Ikeda K, Hayashi Y, Kimura T, Hirota S, Matsuzaki K, Kiso Y. "Click peptide" based on the "o-acyl isopeptide method": control of A beta1-42 production from a photo-triggered A beta1-42 analogue. J Am Chem Soc 2006; 128:696-7. [PMID: 16417340 DOI: 10.1021/ja057100v] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A clear understanding of the dynamic events of amyloid beta peptide (Abeta) 1-42, such as the folding, self-assembly, and aggregation processes, would be of great significance in Alzheimer's disease (AD) research. However, elucidation of these Abeta1-42 dynamic events is a difficult issue due to uncontrolled polymerization, which also poses a significant obstacle for establishing an experimental system that clarifies the pathological function of Abeta1-42. On the basis of the O-acyl isopeptide method, we herein developed a novel photo-triggered "click peptide" of Abeta1-42, for example, 26-N-Nvoc-26-AIAbeta42, in which the photocleavable 6-nitroveratryloxycarbonyl (Nvoc) group was introduced at the alpha-amino group of Ser26 in 26-O-acyl isoAbeta1-42 (26-AIAbeta42). From the results, (1) the click peptide did not exhibit the self-assembling nature under physiological conditions due to one single modified ester; (2) photoirradiation of the click peptide and subsequent O-N intramolecular acyl migration afforded the intact Abeta1-42 with a quick and one-way conversion reaction (so-called "click"), while the click peptide was stable under nonphotolytic or storage conditions. In addition, it is advantageous that no additional fibril inhibitory auxiliaries were released during conversion to Abeta1-42. This method provides a novel system useful for investigating the dynamic biological functions of Abeta1-42 in AD by inducible activation of Abeta1-42 self-assembly.
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Affiliation(s)
- Atsuhiko Taniguchi
- Department of Medicinal Chemistry, Center for Frontier Research in Medicinal Science, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto 607-8412, Japan
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Gao X, Matsui H. Peptide-Based Nanotubes and Their Applications in Bionanotechnology. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2005; 17:2037-2050. [PMID: 31080317 PMCID: PMC6510252 DOI: 10.1002/adma.200401849] [Citation(s) in RCA: 333] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
In nature, biological nanomaterials are synthesized under ambient conditions in a natural microscopic-sized laboratory, such as a cell. Biological molecules, such as peptides and proteins, undergo self-assembly processes in vivo and in vitro, and these monomers are assembled into various nanometer-scale structures at room temperature and atmospheric pressure. The self-assembled peptide nanostructures can be further organized to form nanowires, nanotubes, and nanoparticles via their molecular-recognition functions. The application of molecular self-assemblies of synthetic peptides as nanometer-scale building blocks in devices is robust, practical, and affordable due to their advantages of reproducibility, large-scale production ability, monodispersity, and simpler experimental methods. It is also beneficial that smart functionalities can be added at desired positions in peptide nanotubes through well-established chemical and peptide syntheses. These features of peptide-based nanotubes are the driving force for investigating and developing peptide nanotube assemblies for biological and non-biological applications.
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Affiliation(s)
- Xueyun Gao
- Department of Chemistry and Biochemistry at Hunter College and the Graduate Center, The City University of New York, New York, NY 10021 (USA)
| | - Hiroshi Matsui
- Department of Chemistry and Biochemistry at Hunter College and the Graduate Center, The City University of New York, New York, NY 10021 (USA)
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