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Maruf A, Milewska M, Varga M, Wandzik I. Trehalose-Bearing Carriers to Target Impaired Autophagy and Protein Aggregation Diseases. J Med Chem 2023; 66:15613-15628. [PMID: 38031413 PMCID: PMC10726369 DOI: 10.1021/acs.jmedchem.3c01442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 11/02/2023] [Accepted: 11/15/2023] [Indexed: 12/01/2023]
Abstract
In recent years, trehalose, a natural disaccharide, has attracted growing attention because of the discovery of its potential to induce autophagy. Trehalose has also been demonstrated to preserve the protein's structural integrity and to limit the aggregation of pathologically misfolded proteins. Both of these properties have made trehalose a promising therapeutic candidate to target autophagy-related disorders and protein aggregation diseases. Unfortunately, trehalose has poor bioavailability due to its hydrophilic nature and susceptibility to enzymatic degradation. Recently, trehalose-bearing carriers, in which trehalose is incorporated either by chemical conjugation or physical entrapment, have emerged as an alternative option to free trehalose to improve its efficacy, particularly for the treatment of neurodegenerative diseases, atherosclerosis, nonalcoholic fatty liver disease (NAFLD), and cancers. In the current Perspective, we discuss all existing literature in this emerging field and try to identify key challenges for researchers intending to develop trehalose-bearing carriers to stimulate autophagy or inhibit protein aggregation.
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Affiliation(s)
- Ali Maruf
- Department
of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty
of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
- Biotechnology
Center, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
- Drug
Research Progam, Faculty of Pharmacy, University
of Helsinki, Viikinkaari
5E, 00014 Helsinki, Finland
| | - Małgorzata Milewska
- Department
of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty
of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
- Biotechnology
Center, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - Máté Varga
- Department
of Genetics, ELTE Eötvös Loránd
University, Pázmány
P. stny. 1/C, Budapest H-1117, Hungary
| | - Ilona Wandzik
- Department
of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty
of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
- Biotechnology
Center, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
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Vinciguerra D, Gelb MB, Maynard HD. Synthesis and Application of Trehalose Materials. JACS AU 2022; 2:1561-1587. [PMID: 35911465 PMCID: PMC9327084 DOI: 10.1021/jacsau.2c00309] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Trehalose is a naturally occurring, nonreducing disaccharide that is widely used in the biopharmaceutical, food, and cosmetic industries due to its stabilizing and cryoprotective properties. Over the years, scientists have developed methodologies to synthesize linear polymers with trehalose units either in the polymer backbone or as pendant groups. These macromolecules provide unique properties and characteristics, which often outperform trehalose itself. Additionally, numerous reports have focused on the synthesis and formulation of materials based on trehalose, such as nanoparticles, hydrogels, and thermoset networks. Among many applications, these polymers and materials have been used as protein stabilizers, as gene delivery systems, and to prevent amyloid aggregate formation. In this Perspective, recent developments in the synthesis and application of trehalose-based linear polymers, hydrogels, and nanomaterials are discussed, with a focus on utilization in the biomedical field.
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Affiliation(s)
- Daniele Vinciguerra
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California
NanoSystems Institute, University of California,
Los Angeles, 570 Westwood
Plaza, Los Angeles, California 90095-1569, United States
| | - Madeline B. Gelb
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California
NanoSystems Institute, University of California,
Los Angeles, 570 Westwood
Plaza, Los Angeles, California 90095-1569, United States
| | - Heather D. Maynard
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095-1569, United States
- California
NanoSystems Institute, University of California,
Los Angeles, 570 Westwood
Plaza, Los Angeles, California 90095-1569, United States
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3
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Milewska M, Milewski A, Wandzik I, Stenzel MH. Structurally analogous trehalose and sucrose glycopolymers – comparative characterization and evaluation of their effects on insulin fibrillation. Polym Chem 2022. [DOI: 10.1039/d1py01517f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Comprehensive comparative characterization of highly structurally similar, RAFT-prepared trehalose and sucrose glycopolymers.
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Affiliation(s)
- Małgorzata Milewska
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
- Biotechnology Center, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - Andrzej Milewski
- Department of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 6, 44-100 Gliwice, Poland
| | - Ilona Wandzik
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland
- Biotechnology Center, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - Martina H. Stenzel
- Centre for Advanced Macromolecular Design, School of Chemistry, UNSW, Sydney, NSW 2052, Australia
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Khalifeh M, Read MI, Barreto GE, Sahebkar A. Trehalose against Alzheimer's Disease: Insights into a Potential Therapy. Bioessays 2020; 42:e1900195. [PMID: 32519387 DOI: 10.1002/bies.201900195] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 04/13/2020] [Indexed: 12/21/2022]
Abstract
Trehalose is a natural disaccharide with a remarkable ability to stabilize biomolecules. In recent years, trehalose has received growing attention as a neuroprotective molecule and has been tested in experimental models for different neurodegenerative diseases. Although the underlying neuroprotective mechanism of trehalose's action is unclear, one of the most important hypotheses is autophagy induction. The chaperone-like activity of trehalose and the ability to modulate inflammatory responses has also been reported. There is compelling evidence that the dysfunction of autophagy and aggregation of misfolded proteins contribute to the pathogenesis of Alzheimer's disease (AD) and other neurodegenerative disorders. Therefore, given the linking between trehalose and autophagy induction, it appears to be a promising therapy for AD. Herein, the published studies concerning the use of trehalose as a potential therapy for AD are summarized, providing a rationale for applying trehalose to reduce Alzheimer's pathology.
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Affiliation(s)
- Masoomeh Khalifeh
- Department of Medical Biotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Morgayn I Read
- Department of Pharmacology, School of Medical Sciences, University of Otago, Dunedin, New Zealand
| | - George E Barreto
- Department of Biological Sciences, University of Limerick, Limerick, Ireland.,Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile
| | - Amirhossein Sahebkar
- Halal Research Center of IRI, FDA, Tehran, Iran.,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Di Natale G, Zimbone S, Bellia F, Tomasello M, Giuffrida M, Pappalardo G, Rizzarelli E. Potential therapeutics of Alzheimer's diseases: New insights into the neuroprotective role of trehalose‐conjugated beta sheet breaker peptides. Pept Sci (Hoboken) 2018. [DOI: 10.1002/pep2.24083] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- G. Di Natale
- Consiglio Nazionale delle Ricerche (CNR) Instituto di Biostrutture e Bioimmagini, Via Paolo Gaifami 18 Catania 95126 Italy
| | - S. Zimbone
- Consiglio Nazionale delle Ricerche (CNR) Instituto di Biostrutture e Bioimmagini, Via Paolo Gaifami 18 Catania 95126 Italy
| | - F. Bellia
- Consiglio Nazionale delle Ricerche (CNR) Instituto di Biostrutture e Bioimmagini, Via Paolo Gaifami 18 Catania 95126 Italy
| | - M.F. Tomasello
- Consiglio Nazionale delle Ricerche (CNR) Instituto di Biostrutture e Bioimmagini, Via Paolo Gaifami 18 Catania 95126 Italy
| | - M.L. Giuffrida
- Consiglio Nazionale delle Ricerche (CNR) Instituto di Biostrutture e Bioimmagini, Via Paolo Gaifami 18 Catania 95126 Italy
| | - G. Pappalardo
- Consiglio Nazionale delle Ricerche (CNR) Instituto di Biostrutture e Bioimmagini, Via Paolo Gaifami 18 Catania 95126 Italy
| | - E. Rizzarelli
- Consiglio Nazionale delle Ricerche (CNR) Instituto di Biostrutture e Bioimmagini, Via Paolo Gaifami 18 Catania 95126 Italy
- Dipartimento di Scienze Chimiche Università degli studi di Catania, Viale Andrea Doria 6 Catania 95125 Italy
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Piwowarek K, Lipińska E, Hać-Szymańczuk E, Kieliszek M, Ścibisz I. Propionibacterium spp.-source of propionic acid, vitamin B12, and other metabolites important for the industry. Appl Microbiol Biotechnol 2018; 102:515-538. [PMID: 29167919 PMCID: PMC5756557 DOI: 10.1007/s00253-017-8616-7] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 10/31/2017] [Accepted: 11/01/2017] [Indexed: 01/09/2023]
Abstract
Bacteria from the Propionibacterium genus consists of two principal groups: cutaneous and classical. Cutaneous Propionibacterium are considered primary pathogens to humans, whereas classical Propionibacterium are widely used in the food and pharmaceutical industries. Bacteria from the Propionibacterium genus are capable of synthesizing numerous valuable compounds with a wide industrial usage. Biomass of the bacteria from the Propionibacterium genus constitutes sources of vitamins from the B group, including B12, trehalose, and numerous bacteriocins. These bacteria are also capable of synthesizing organic acids such as propionic acid and acetic acid. Because of GRAS status and their health-promoting characteristics, bacteria from the Propionibacterium genus and their metabolites (propionic acid, vitamin B12, and trehalose) are commonly used in the cosmetic, pharmaceutical, food, and other industries. They are also used as additives in fodders for livestock. In this review, we present the major species of Propionibacterium and their properties and provide an overview of their functions and applications. This review also presents current literature concerned with the possibilities of using Propionibacterium spp. to obtain valuable metabolites. It also presents the biosynthetic pathways as well as the impact of the genetic and environmental factors on the efficiency of their production.
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Affiliation(s)
- Kamil Piwowarek
- Department of Biotechnology, Microbiology and Food Evaluation, Division of Food Biotechnology and Microbiology, Faculty of Food Sciences, Warsaw University of Life Sciences SGGW (WULS-SGGW), Nowoursynowska 159c Street, 02-776, Warsaw, Poland.
| | - Edyta Lipińska
- Department of Biotechnology, Microbiology and Food Evaluation, Division of Food Biotechnology and Microbiology, Faculty of Food Sciences, Warsaw University of Life Sciences SGGW (WULS-SGGW), Nowoursynowska 159c Street, 02-776, Warsaw, Poland
| | - Elżbieta Hać-Szymańczuk
- Department of Biotechnology, Microbiology and Food Evaluation, Division of Food Biotechnology and Microbiology, Faculty of Food Sciences, Warsaw University of Life Sciences SGGW (WULS-SGGW), Nowoursynowska 159c Street, 02-776, Warsaw, Poland
| | - Marek Kieliszek
- Department of Biotechnology, Microbiology and Food Evaluation, Division of Food Biotechnology and Microbiology, Faculty of Food Sciences, Warsaw University of Life Sciences SGGW (WULS-SGGW), Nowoursynowska 159c Street, 02-776, Warsaw, Poland
| | - Iwona Ścibisz
- Department of Food Technology, Division of Fruit and Vegetable Technology, Faculty of Food Sciences, Warsaw University of Life Sciences (WULS-SGGW), Nowoursynowska 159c Street, 02-776, Warsaw, Poland
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Pradhan N, Shekhar S, Jana NR, Jana NR. Sugar-Terminated Nanoparticle Chaperones Are 10 2-10 5 Times Better Than Molecular Sugars in Inhibiting Protein Aggregation and Reducing Amyloidogenic Cytotoxicity. ACS APPLIED MATERIALS & INTERFACES 2017; 9:10554-10566. [PMID: 28272865 DOI: 10.1021/acsami.7b01886] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Sugar-based osmolyte molecules are known to stabilize proteins under stress, but usually they have poor chaperone performance in inhibiting protein aggregation. Here, we show that the nanoparticle form of sugars molecule can enhance their chaperone performance typically by 102-105 times, compared to molecular sugar. Sugar-based plate-like nanoparticles of 20-40 nm hydrodynamic size have been synthesized by simple heating of acidic aqueous solution of glucose/sucrose/maltose/trehalose. These nanoparticles have excitation-dependent green/yellow/orange emission and surface chemistry identical to the respective sugar molecule. Fibrillation of lysozyme/insulin/amyloid beta in extracellular space, aggregation of mutant huntingtin protein inside model neuronal cell, and cytotoxic effect of fibrils are investigated in the presence of these sugar nanoparticles. We found that sugar nanoparticles are 102-105 times efficient than respective sugar molecules in inhibiting protein fibrillation and preventing cytotoxicity arising of fibrils. We propose that better performance of the nanoparticle form is linked to its stronger binding with fibril structure and enhanced cell uptake. This result suggests that nanoparticle form of osmolyte can be an attractive option in prevention and curing of protein aggregation-derived diseases.
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Affiliation(s)
- Nibedita Pradhan
- Centre for Advanced Materials, Indian Association for the Cultivation of Science , Kolkata-700032, India
| | - Shashi Shekhar
- Cellular and Molecular Neuroscience Laboratory, National Brain Research Centre , Manesar, Gurgaon-122051, India
| | - Nihar R Jana
- Cellular and Molecular Neuroscience Laboratory, National Brain Research Centre , Manesar, Gurgaon-122051, India
| | - Nikhil R Jana
- Centre for Advanced Materials, Indian Association for the Cultivation of Science , Kolkata-700032, India
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8
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Yano S, Teramoto N, Miyamoto R, Nakajima E, Hashimoto K, Shibata M. Fibroblast cell proliferation on photo-cured trehalose cinnamoyl ester thin films. J BIOACT COMPAT POL 2014. [DOI: 10.1177/0883911514558012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Trehalose cinnamoyl esters (TCs) were synthesized by esterification of trehlaose with cinnamoyl chloride. Two TCs with different degrees of substitution were synthesized, and trehalose cinnamoyl ester thin film-coated glass plates were prepared by a dip-coating method. Photocuring of the TCs was confirmed by ultraviolet–visible spectral changes. The surface of photo-cured TCs were found smooth as observed in a scanning electron microscope. The cell proliferation on the photo-cured TCs was investigated using 3T3 Swiss Albino mouse embryo fibroblasts. The results of the cell proliferation assay revealed that the photo-cured TCs with higher degrees of substitution promoted the cell proliferation compared with a polystyrene culture plate and the photo-cured TCs with lower degrees of substitution. The contact angle of the photo-cured TCs with higher degrees of substitution was 101.0° ± 1.6°, which is much higher than that of the polystyrene culture plate, and it is out of the range known to be suitable for cell adhesion. Nevertheless, the cell unexpectedly grew best on the photo-cured TCs with higher degrees of substitution. Fibronectin binding assay was carried out using fluorescent probe-modified fibronectin, and more fibronectin was found adsorbed onto photo-cured TCs than a polystyrene culture plate.
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Affiliation(s)
- Shinya Yano
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, Chiba, Japan
| | - Naozumi Teramoto
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, Chiba, Japan
| | - Rikako Miyamoto
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, Chiba, Japan
| | - Eiichi Nakajima
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, Chiba, Japan
| | - Kazuaki Hashimoto
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, Chiba, Japan
| | - Mitsuhiro Shibata
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, Chiba, Japan
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Jayamani J, Shanmugam G, Azhagiya Singam ER. Inhibition of insulin amyloid fibril formation by ferulic acid, a natural compound found in many vegetables and fruits. RSC Adv 2014. [DOI: 10.1039/c4ra11291a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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10
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Rajaram H, Palanivelu MK, Arumugam TV, Rao VM, Shaw PN, McGeary RP, Ross BP. ‘Click’ assembly of glycoclusters and discovery of a trehalose analogue that retards Aβ40 aggregation and inhibits Aβ40-induced neurotoxicity. Bioorg Med Chem Lett 2014; 24:4523-4528. [DOI: 10.1016/j.bmcl.2014.07.077] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 07/25/2014] [Accepted: 07/29/2014] [Indexed: 11/29/2022]
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Jayamani J, Shanmugam G. Gallic acid, one of the components in many plant tissues, is a potential inhibitor for insulin amyloid fibril formation. Eur J Med Chem 2014; 85:352-8. [PMID: 25105923 DOI: 10.1016/j.ejmech.2014.07.111] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 07/31/2014] [Accepted: 07/31/2014] [Indexed: 01/09/2023]
Abstract
Proteins under stressful conditions can lead to the formation of an ordered self-assembled structure, referred to as amyloid fibrils, to which many neurodegenerative diseases such as Type II diabetes, Alzheimer's, Parkinson's, Huntington's, etc., are attributed. Inhibition of amyloid fibril formation using natural products is one of the main therapeutic strategies to prevent the progression of these diseases. Polyphenols are the mostly consumed as antioxidants in a human nutrition. Herein, we have studied the effect of a simple polyphenol, gallic acid (GA), one of the main components in plant tissues, especially in tea leaves, on the insulin amyloid fibril formation. Different biophysical characterizations such as turbidity, atomic force microscopy (AFM), Thioflavin T (ThT) assays, circular dichroism, and Fourier transform-infrared spectroscopy have been used to analyze the inhibition of amyloid fibril formation. The occurrence of fibrils in an AFM image and ThT fluorescence enhancement confirms the formation of insulin amyloid fibrils when incubated under acidic pH 2 at 65 °C. In the presence of GA, absence of fibrils in AFM image and no change in the intensity of ThT fluorescence confirms the inhibition of insulin amyloid fibrils by GA. Spectroscopic results reveal that GA inhibits the conformational transition of α-helix → β-sheet, which is generally induced during the insulin fibril formation. It was found that the inhibitory effect of GA is concentration dependent and non-linear. Based on the observed results, we propose that GA interacts with native insulin, preventing nuclei formation, which is essential for fibril growth, thereby inhibiting the amyloid fibril formation. The present results thus demonstrate that GA can effectively inhibit insulin amyloid fibril formation in vitro.
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Affiliation(s)
- Jayaraman Jayamani
- Bioorganic Laboratory, CSIR - Central Leather Research Institute, Adyar, Chennai 600 020, India; Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawn, 2 Rafi Marg, New Delhi 110 001, India
| | - Ganesh Shanmugam
- Bioorganic Laboratory, CSIR - Central Leather Research Institute, Adyar, Chennai 600 020, India; Academy of Scientific and Innovative Research (AcSIR), Anusandhan Bhawn, 2 Rafi Marg, New Delhi 110 001, India.
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Sunasee R, Adokoh CK, Darkwa J, Narain R. Therapeutic potential of carbohydrate-based polymeric and nanoparticle systems. Expert Opin Drug Deliv 2014; 11:867-84. [DOI: 10.1517/17425247.2014.902048] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Seto H, Ogata Y, Murakami T, Hoshino Y, Miura Y. Selective protein separation using siliceous materials with a trimethoxysilane-containing glycopolymer. ACS APPLIED MATERIALS & INTERFACES 2012; 4:411-7. [PMID: 22148732 DOI: 10.1021/am2014713] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A copolymer with α-D-mannose (Man) and trimethoxysilane (TMS) units was synthesized for immobilization on siliceous matrices such as a sensor cell and membrane. Immobilization of the trimethoxysilane-containing copolymer on the matrices was readily performed by incubation at high heat. The recognition of lectin by poly(Man-r-TMS) was evaluated by measurement with a quartz crystal microbalance (QCM) and adsorption on an affinity membrane, QCM results showed that the mannose-binding protein, concanavalin A, was specifically bound on a poly(Man-r-TMS)-immobilized cell with a higher binding constant than bovine serum albumin. The amount of concanavalin A adsorbed during permeation through a poly(Man-r-TMS)-immobilized membrane was higher than that through an unmodified membrane. Moreover, the concanavalin A adsorbed onto the poly(Man-r-TMS)-immobilized membrane was recoverable by permeation of a mannose derivative at high concentration.
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Affiliation(s)
- Hirokazu Seto
- Department of Chemical Engineering, Graduate School of Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
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Wada M, Miyazawa Y, Miura Y. A specific inhibitory effect of multivalent trehalose toward Aβ(1-40) aggregation. Polym Chem 2011. [DOI: 10.1039/c1py00072a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Effect of trehalose on the interaction of Alzheimer's Aβ-peptide and anionic lipid monolayers. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2010; 1808:26-33. [PMID: 20920466 DOI: 10.1016/j.bbamem.2010.09.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2009] [Revised: 09/26/2010] [Accepted: 09/29/2010] [Indexed: 01/07/2023]
Abstract
The interaction of amyloid β-peptide (Aβ) with cell membranes is believed to play a central role in the pathogenesis of Alzheimer's disease. In particular, recent experimental evidence indicates that bilayer and monolayer membranes accelerate the aggregation and amyloid fibril formation rate of Aβ. Understanding that interaction could help develop therapeutic strategies for treatment of the disease. Trehalose, a disaccharide of glucose, has been shown to be effective in preventing the aggregation of numerous proteins. It has also been shown to delay the onset of certain amyloid-related diseases in a mouse model. Using Langmuir monolayers and molecular simulations of the corresponding system, we study several thermodynamic and kinetic aspects of the insertion of Aβ peptide into DPPG monolayers in water and trehalose subphases. In the water subphase, the insertion of the Aβ peptide into the monolayer exhibits a lag time which decreases with increasing temperature of the subphase. In the presence of trehalose, the lag time is completely eliminated and peptide insertion is completed within a shorter time period compared to that observed in pure water. Molecular simulations show that more peptide is inserted into the monolayer in the water subphase, and that such insertion is deeper. The peptide at the monolayer interface orients itself parallel to the monolayer, while it inserts with an angle of 50° in the trehalose subphase. Simulations also show that trehalose reduces the conformational change that the peptide undergoes when it inserts into the monolayer. This observation helps explain the experimentally observed elimination of the lag time by trehalose and the temperature dependence of the lag time in the water subphase.
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Wang MS, Boddapati S, Sierks MR. Antifibrillizing agents catalyze the formation of unstable intermediate aggregates of beta-amyloid. Biotechnol Prog 2010; 26:1172-9. [PMID: 20306540 DOI: 10.1002/btpr.396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Although Alzheimer's disease (AD) is characterized by the extracellular deposition of fibrillar aggregates of beta-amyloid (Abeta), transient oligomeric species of Abeta are increasingly implicated in the pathogenesis of AD. Natively unfolded monomeric Abeta can misfold and progressively assemble into fibrillar aggregates, following a well-established "on pathway" seeded-nucleation mechanism. Here, we show that three simple saccharides, mannose, sucrose, and raffinose, alter Abeta aggregation kinetics and morphology. The saccharides inhibit formation of Abeta fibrils but promote formation of various oligomeric aggregate species through different "off pathway" aggregation mechanisms at 37 degrees C but not at 60 degrees C. The various oligomeric Abeta aggregates formed when coincubated with the different saccharides are morphologically distinct but all are toxic toward SH-SY5Y human neuroblastoma cells, increasing the level of toxicity and greatly prolonging toxicity compared with Abeta alone. As a wide variety of anti-Abeta aggregation strategies are being actively pursued as potential therapeutics for AD, these studies suggest that care must be taken to ensure that the therapeutic agents also block toxic oligomeric Abeta assembly as well as inhibit fibril formation.
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Affiliation(s)
- Min S Wang
- Department, of Chemical Engineering, Arizona State University, Tempe, AZ 85287, USA
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