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Bhargava S, Kulkarni R, Dewangan B, Kulkarni N, Jiaswar C, Kumar K, Kumar A, Bodhe PR, Kumar H, Sahu B. Microtubule stabilising peptides: new paradigm towards management of neuronal disorders. RSC Med Chem 2023; 14:2192-2205. [PMID: 37974959 PMCID: PMC10650357 DOI: 10.1039/d3md00012e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 08/09/2023] [Indexed: 11/19/2023] Open
Abstract
Neuronal cells made of soma, axon, and dendrites are highly compartmentalized and possess a specialized transport system that can convey long-distance electrical signals for the cross-talk. The transport system is made up of microtubule (MT) polymers and MT-binding proteins. MTs play vital and diverse roles in various cellular processes. Therefore, defects and dysregulation of MTs and their binding proteins lead to many neurological disorders as exemplified by Parkinson's disease, Alzheimer's disease, amyotrophic lateral sclerosis, Huntington's disease, and many others. MT-stabilising agents (MSAs) altering the MT-associated protein connections have shown great potential for several neurodegenerative disorders. Peptides are an important class of molecules with high specificity, biocompatibility and are devoid of side effects. In the past, peptides have been explored in various neuronal disorders as therapeutics. Davunetide, a MT-stabilising octapeptide, has entered into phase II clinical trials for schizophrenia. Numerous examples of peptides emerging as MSAs reflect the emergence of a new paradigm for peptides which can be explored further as drug candidates for neuronal disorders. Although small molecule-based MSAs have been reviewed in the past, there is no systematic review in recent years focusing on peptides as MSAs apart from davunetide in 2013. Therefore, a systematic updated review on MT stabilising peptides may shed light on many hidden aspects and enable researchers to develop new therapies for diseases related to the CNS. In this review we have summarised the recent examples of peptides as MSAs.
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Affiliation(s)
- Shubhangi Bhargava
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad India
| | - Riya Kulkarni
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research Ahmedabad India
| | - Bhaskar Dewangan
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad India
| | - Neeraj Kulkarni
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad India
| | - Chirag Jiaswar
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad India
| | - Kunal Kumar
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad India
| | - Amit Kumar
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad India
| | - Praveen Reddy Bodhe
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad India
| | - Hemant Kumar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research Ahmedabad India
| | - Bichismita Sahu
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Ahmedabad India
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Wu Y, Guo S, Wang K, Kang J. The interaction of peptide inhibitors and Aβ protein: Binding mode analysis, inhibition of the formation of Aβ aggregates, and then exert neuroprotective effects. Front Aging Neurosci 2023; 15:1139418. [PMID: 37113572 PMCID: PMC10126514 DOI: 10.3389/fnagi.2023.1139418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 03/20/2023] [Indexed: 04/29/2023] Open
Abstract
Introduction The misfolding and aggregation of β-amyloid (Aβ) easily form Aβ fibers, which are continuously deposited in the brain, leading to the massive generation of amyloid plaques, severely destroying neuronal connections, and promoting Alzheimer's disease (AD) The occurrence and development of AD is one of the pathogenesis of AD. There is an urgent need to develop inhibitors against Aβ aggregation, which is hopefully a potential way to treat AD. Methods In this study, we first found the crystal structure of the Aβ1-42 receptor protein from the RCSB PDB protein structure database and used the SYBYL X2.0 software for molecular docking, and then used the Peptide Ranker, Innovagen, DPL, and ToxinPred online websites to perform peptides. Predict the activity score, toxicity and water solubility, and then calculate the affinity constant KD value of polypeptide and Aβ through Surface Plasmon Resonance (SPR) experiment. Subsequently, the CCK-8 kit method was used to determine the toxicity of different concentrations of peptides (3.125, 6.25, 12.5, 25, 50, 100, 200 μM) to PC12 cells, and then the peptides and Aβ according to different concentration ratios (1:4, 1:2, 1:1, 1:0.5, 1:0.25, 0:4), this method is also used to detect the effect of peptides on Aβ-induced neurotoxicity. The thioflavin T (ThT) fluorescence method was used to detect the effects of peptides (50 μM) on Aβ (25 μM) aggregation inhibitory effect. Results The results showed that the CScore of YVRHLKYVRHLK peptide molecule docking was 10.0608, the predicted activity score was 0.20, and the KD value was 5.385 × 10-5. The ThT and CCK-8 kit method found that the peptide itself is less toxic to PC12 cells at a concentration of 50 μM, and it has a significant inhibitory effect on the formation of Aβ1-42 aggregates when incubated with Aβ1-42 at a ratio of 1:1 (p < 0.05) and can significantly reduce the PC12 cytotoxicity induced by Aβ1-42 (p < 0.05). Conclusion In conclusion, the polypeptide YVRHLKYVRHLK designed in this study has a neuroprotective effect on PC12 cytotoxicity induced by Aβ1-42. Graphical Abstract.
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Affiliation(s)
- Yuchen Wu
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Shuang Guo
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Kunli Wang
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Jingjing Kang
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, China
- *Correspondence: Jingjing Kang,
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Úsuga-Acevedo B, García Y, Díaz CF, Jiménez VA. Rational Discovery of Microtubule-Stabilizing Peptides. J Chem Inf Model 2022; 62:6844-6856. [PMID: 36074453 DOI: 10.1021/acs.jcim.2c00849] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Microtubule (MT) stabilization is an attractive pharmacological strategy to hamper the progress of neurodegenerative diseases. In this regard, seeking peptides with MT-stabilizing properties has awoken great interest. This work reports the rational discovery of two structurally related MT-stabilizing octapeptides using a combination of protein-peptide docking, conventional molecular dynamics, Gaussian accelerated molecular dynamics (GaMD), and tubulin polymerization assays. FASTA sequences for ∼1000 peptides were crafted from single and double mutants of davunetide (NAP) and docked against the Taxol (TX) site on an octameric MT model representing a portion of the MT wall. Docked peptides were rescored after MM minimization and binding free energy refinement through single-point MM/GBSA calculations. The 60 best-ranked peptides were subjected to 50 ns MD simulations on peptide-MT complexes at the terminal TX site in the octameric Tau-MT model resulting in 11 complexes with occupancies greater than 99% and peptide-protein binding free energies less than -40 kcal/mol. Selected peptides were then examined through 300 ns GaMD simulations in complexes containing two identical ligands at the terminal and intermediate TX sites in the Tau-MT model to account for the differential association of MT-binding peptides to different regions of the MT structure. Six candidates showed a favorable MT-binding potential based on the analysis of interaction frequencies and relative mobilities of the complex components, suggesting a pivotal role of Arg278, Gln281, and Arg369 residues for peptides recognition. Four candidates were predicted to preserve an adequate balance of longitudinal and lateral interactions between tubulin dimers in peptide-MT complexes such that MT-stabilizing effects could be expected. MT polymerization experiments confirmed that four peptides (HAPVSIHQ, NYPVSIHQ, NWPVSIWQ, HAPVSIIQ) exhibit MT-stabilizing activity in vitro with NWPVSIWQ (P43) and HAPVSIIQ (P52) being the most active. Tryptophan quenching assays verified that P43 and P52 bind to nonpolymeric tubulin, whereas viability experiments on HEK cells confirmed their safety to pursue future pharmacological studies. The results herein presented are valuable to making progress in the rational design of MT-stabilizing peptides.
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Affiliation(s)
- Brandon Úsuga-Acevedo
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Sede Concepción, Autopista Concepción-Talcahuano 7100, Talcahuano, Chile 4300866
| | - Yadiris García
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Sede Concepción, Autopista Concepción-Talcahuano 7100, Talcahuano, Chile 4300866
| | - Carola F Díaz
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Sede Concepción, Autopista Concepción-Talcahuano 7100, Talcahuano, Chile 4300866
| | - Verónica A Jiménez
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Sede Concepción, Autopista Concepción-Talcahuano 7100, Talcahuano, Chile 4300866
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4
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Watari S, Inaba H, Tamura T, Kabir AMR, Kakugo A, Sada K, Hamachi I, Matsuura K. Light-induced stabilization of microtubules by photo-crosslinking of a Tau-derived peptide. Chem Commun (Camb) 2022; 58:9190-9193. [PMID: 35929838 DOI: 10.1039/d2cc01890j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For light-induced stabilization of microtubules (MTs) to manipulate cells, a photo-reactive diazirine group was conjugated to a Tau-derived peptide, a motif binding on the inside of MTs. Ultraviolet (UV) light irradiation induced significant stabilization of MTs via the formation of a covalent bond of the peptide and showed toxicity.
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Affiliation(s)
- Soei Watari
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan.
| | - Hiroshi Inaba
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan. .,Centre for Research on Green Sustainable Chemistry, Tottori University, Tottori 680-8552, Japan
| | - Tomonori Tamura
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | | | - Akira Kakugo
- Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.,Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-0810, Japan
| | - Kazuki Sada
- Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan.,Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo 060-0810, Japan
| | - Itaru Hamachi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.,JST-ERATO, Hamachi Innovative Molecular Technology for Neuroscience, Nishikyo-ku, Kyoto 615-8530, Japan
| | - Kazunori Matsuura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori 680-8552, Japan. .,Centre for Research on Green Sustainable Chemistry, Tottori University, Tottori 680-8552, Japan
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5
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Mukherjee N, Roy R, Ghosh S, Ghosh S. Self‐Assembled Antimitotic Peptide Vesicle Designed from
α
,
β
‐Tubulin Heterodimer Interface for Anticancer Drug Delivery. Isr J Chem 2022. [DOI: 10.1002/ijch.202200019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nabanita Mukherjee
- Department of Bioscience & Bioengineering Indian Institute of Technology Jodhpur NH 65, Surpura Bypass Road Karwar Rajasthan 342037 India
| | - Rajsekhar Roy
- Department of Bioscience & Bioengineering Indian Institute of Technology Jodhpur NH 65, Surpura Bypass Road Karwar Rajasthan 342037 India
| | - Satyajit Ghosh
- Department of Bioscience & Bioengineering Indian Institute of Technology Jodhpur NH 65, Surpura Bypass Road Karwar Rajasthan 342037 India
| | - Surajit Ghosh
- Department of Bioscience & Bioengineering Indian Institute of Technology Jodhpur NH 65, Surpura Bypass Road Karwar Rajasthan 342037 India
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6
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Inaba H, Matsuura K. Encapsulation of Nanomaterials Inside Microtubules by Using a Tau-Derived Peptide. Methods Mol Biol 2022; 2430:243-260. [PMID: 35476337 DOI: 10.1007/978-1-0716-1983-4_16] [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] [Indexed: 06/14/2023]
Abstract
Microtubules (MTs) are tubular cytoskeletons, which are used for the various applications such as active matters and therapeutic targets. Although modification of the exterior surface of MTs is frequently used for functionalization of MTs, there was no approach to introduce molecules inside MTs. We previously developed a unique peptide binding to the inner surface of MT, which is derived from a MT-associated protein, Tau. The Tau-derived peptide (TP) can be used to introduce various nanomaterials inside MTs. Here we describe the TP-based encapsulation of fluorescent dye, gold nanoparticle, green fluorescent protein, and magnetic CoPt nanoparticles inside MTs.
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Affiliation(s)
- Hiroshi Inaba
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori, Japan.
- Centre for Research on Green Sustainable Chemistry, Tottori University, Tottori, Japan.
| | - Kazunori Matsuura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Tottori, Japan.
- Centre for Research on Green Sustainable Chemistry, Tottori University, Tottori, Japan.
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7
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Abstract
Preserving the integrity of neuronal microtubules (MTs) has emerged as a promising strategy to inhibit the progression of neurodegenerative disorders such as Alzheimer's disease. Such a goal could be achieved by peptides that mimic the functional role of Tau, an MT-associated protein that stabilizes MTs by dynamically binding to their outer surface. This work examines the binding properties and MT-stabilizing potential of a 27-amino acid Tau oligopeptide from 300 ns Gaussian-accelerated molecular dynamics simulations and Molecular Mechanics/Generalized Born Surface Area (MM/GBSA) calculations on octameric MT models bound to two equivalent and independent Tau peptides. Bound peptides adopted extended conformations that are highly consistent with cryo-electron microscopy reports for full-length Tau bound to MTs. Anchoring points in three consecutive tubulin subunits were identified, with a relevant contribution of the Ser419-Val435 region to α-tubulin. Tau peptides strengthen the longitudinal protein-protein contacts within the MT lattice and exert a cooperative MT-stabilizing effect in MT complexes simultaneously bonded to taxol or peloruside A. Ser phosphorylation results in a larger peptide mobility, altered interaction profiles, and MT destabilization, which are in line with the loss of MT integrity resulting from the post-translational hyperphosphorylation of Tau. Our results shed light on the MT-stabilizing potential of Tau-mimetic peptides to act as novel neuroprotective agents targeting MTs.
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Affiliation(s)
- Verónica A Jiménez
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Sede Concepción, Autopista Concepción-Talcahuano, Talcahuano 7100, Chile
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8
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Inaba H, Matsuura K. Modulation of Microtubule Properties and Functions by Encapsulation of Nanomaterials Using a Tau-Derived Peptide. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210202] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Hiroshi Inaba
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8552, Japan
- Centre for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-Minami, Tottori 680-8552, Japan
| | - Kazunori Matsuura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-Minami, Tottori 680-8552, Japan
- Centre for Research on Green Sustainable Chemistry, Tottori University, 4-101 Koyama-Minami, Tottori 680-8552, Japan
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9
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Mandal S, Panja P, Debnath K, Jana NR, Jana NR. Small-Molecule-Functionalized Hyperbranched Polyglycerol Dendrimers for Inhibiting Protein Aggregation. Biomacromolecules 2020; 21:3270-3278. [DOI: 10.1021/acs.biomac.0c00713] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Suman Mandal
- School of Material Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Prasanta Panja
- School of Material Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Koushik Debnath
- School of Material Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Nihar R. Jana
- School of Bioscience, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Nikhil R. Jana
- School of Material Sciences, Indian Association for the Cultivation of Science, Kolkata 700032, India
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10
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Inaba H, Nagata M, Miyake KJ, Kabir AMR, Kakugo A, Sada K, Matsuura K. Cyclic Tau-derived peptides for stabilization of microtubules. Polym J 2020. [DOI: 10.1038/s41428-020-0356-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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11
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Dinesh B, Medelin M, Scaini D, Lareno Faccini F, Quici F, Ballerini L, Bianco A. Hybrid Interfaces Made of Nanotubes and Backbone-Altered Dipeptides Tune Neuronal Network Architecture. ACS Chem Neurosci 2020; 11:162-172. [PMID: 31854971 DOI: 10.1021/acschemneuro.9b00522] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Peptides constituted of backbone homologated α-amino acids combined with carbon materials offer interesting possibilities in the modulation of cellular functions. In this work, we have prepared diphenylalanine β- and γ-peptides and conjugated them to carbon nanotubes (CNTs). These hybrids were able to self-assemble into fibrillar dendritic structures enabling the growth of primary hippocampal cells and the modulation of their neuronal functions. In particular, following the deposition of the different nanomaterials on glass substrates, we have evaluated their effects on circuit function and geometry. The geometrical restrictions due to CNT nucleated nodes allowed growth of neuronal networks with control over network geometry, and exploring its functional impact. In diverse applications from basic neuroscience, the presence of CNT nodes may be exploited in brain interfaces able to convey highly localized electrical stimuli.
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Affiliation(s)
- Bhimareddy Dinesh
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University of Strasbourg, 67000 Strasbourg, France
| | - Manuela Medelin
- Department of Life Sciences, University of Trieste, 34127 Trieste, Italy
- International School for Advanced Studies (SISSA/ISAS), 34136 Trieste, Italy
| | - Denis Scaini
- International School for Advanced Studies (SISSA/ISAS), 34136 Trieste, Italy
- ELETTRA Sincrotrone Trieste S.c.p.A., 34149 Trieste, Italy
| | | | - Federica Quici
- International School for Advanced Studies (SISSA/ISAS), 34136 Trieste, Italy
| | - Laura Ballerini
- International School for Advanced Studies (SISSA/ISAS), 34136 Trieste, Italy
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University of Strasbourg, 67000 Strasbourg, France
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12
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Inaba H, Yamamoto T, Iwasaki T, Kabir AMR, Kakugo A, Sada K, Matsuura K. Fluorescent Tau-derived Peptide for Monitoring Microtubules in Living Cells. ACS OMEGA 2019; 4:11245-11250. [PMID: 31460226 PMCID: PMC6648849 DOI: 10.1021/acsomega.9b01089] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 06/18/2019] [Indexed: 06/04/2023]
Abstract
Microtubules (MTs) are key cytoskeletal components that modulate various cellular activities with their dynamic structural changes, including polymerization and depolymerization. To monitor the dynamics of MTs in living cells, many drug-based fluorescent probes have been developed; however, these also potentially disturb the polymerization/depolymerization of MTs. Here, we report nondrug, peptide-based fluorescent probes to monitor MTs in living cells. We employed a Tau-derived peptide (TP) that has been shown to bind MTs without inhibiting polymerization/depolymerization in vitro. We show that a tetramethylrhodamine (TMR)-labeled TP (TP-TMR) is internalized into HepG2 cells and binds to intracellular MTs, enabling visualization of MTs as clear, fibrous structures. The binding of TP-TMR shows no apparent effects on polymerization/depolymerization of MTs induced by MT-targeted drugs and temperature change. The main uptake mechanism of TP-TMR was elucidated as endocytosis, and partial endosomal escape resulted in the binding of TP-TMR to MTs. TP-TMR exhibited no cytotoxicity compared with MT-targeted drug scaffolds. These results indicate that TP scaffolds can be exploited as useful MT-targeted tools in living cells, such as in long-term imaging of MTs.
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Affiliation(s)
- Hiroshi Inaba
- Department
of Chemistry and Biotechnology, Graduate School of Engineering and Centre for Research
on Green Sustainable Chemistry, Tottori
University, Koyama-Minami 4-101, Tottori 680-8552, Japan
| | - Takahisa Yamamoto
- Department
of Chemistry and Biotechnology, Graduate School of Engineering and Centre for Research
on Green Sustainable Chemistry, Tottori
University, Koyama-Minami 4-101, Tottori 680-8552, Japan
| | - Takashi Iwasaki
- Department
of Bioresources Science, Graduate School of Agricultural Sciences, Tottori University, Koyama-Minami 4-101, Tottori 680-8553, Japan
| | - Arif Md. Rashedul Kabir
- Faculty of Science and Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - Akira Kakugo
- Faculty of Science and Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - Kazuki Sada
- Faculty of Science and Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo 060-0810, Japan
| | - Kazunori Matsuura
- Department
of Chemistry and Biotechnology, Graduate School of Engineering and Centre for Research
on Green Sustainable Chemistry, Tottori
University, Koyama-Minami 4-101, Tottori 680-8552, Japan
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13
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Mondal P, Khan J, Gupta V, Ghosh S. In Silico Approach for Designing Potent Neuroprotective Hexapeptide. ACS Chem Neurosci 2019; 10:3018-3030. [PMID: 31117343 DOI: 10.1021/acschemneuro.9b00251] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Alzheimer's disease (AD) is a constantly recurring neurodegenerative disease that deteriorates over a period of time. In this pathology, connections between neurons become extremely damaged due to the deposition of senile plaques in the membrane region, which results in abnormal signal transduction processes. Also, the intracellular microtubule networks are disrupted in the hyperphosphorylated tau cascade of AD. Therefore, design and development of potent neuroprotective molecules that can instantaneously target multiple facets of AD pathogenesis are greatly needed to tackle this unmet medical need. Here, we have implemented a pharmacophore based in silico analysis of various neuroprotective peptides known for neurotherapeutic application in AD. Fascinatingly, we have identified an active core of these peptides and designed a library of hexapeptides. We observed that peptide "LETVNQ" (LE6) has shown significant protection ability against degeneration of neurons. Experimental evidence suggests that this peptide immensely reduced the aggregation rate of amyloid-β (Aβ) and helped in microtubule polymerization. Intriguingly, this newly designed peptide does not have any cytotoxicity toward differentiated PC12 neurons; rather it helps in neurite outgrowth. Further, LE6 helps to maintain the complex microtubule network in cells by promoting the polymerization rate of intracellular microtubules and mediates excellent protection of neurons even after removal of nerve growth factor (NGF). Finally, we observed that this LE6 peptide has substantial stability under physiological conditions and helps to retain healthy morphology of primary rat cortical neurons. This excellent piece of work identifies a potent hexapeptide, which has exceptional ability to protect neurons as well as microtubule from degeneration and may become potent therapeutics against AD pathogenesis in the future.
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Affiliation(s)
- Prasenjit Mondal
- Organic and Medicinal Chemistry Division and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700 032 WB, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Juhee Khan
- Organic and Medicinal Chemistry Division and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700 032 WB, India
| | - Varsha Gupta
- Organic and Medicinal Chemistry Division and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700 032 WB, India
| | - Surajit Ghosh
- Organic and Medicinal Chemistry Division and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, 700 032 WB, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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