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Tavili E, Aziziyan F, Khajeh K. Inhibitors of amyloid fibril formation. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2024; 206:291-340. [PMID: 38811084 DOI: 10.1016/bs.pmbts.2024.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Many diseases are caused by misfolded and denatured proteins, leading to neurodegenerative diseases. In recent decades researchers have developed a variety of compounds, including polymeric inhibitors and natural compounds, antibodies, and chaperones, to inhibit protein aggregation, decrease the toxic effects of amyloid fibrils, and facilitate refolding proteins. The causes and mechanisms of amyloid formation are still unclear, and there are no effective treatments for Amyloid diseases. This section describes research and achievements in the field of inhibiting amyloid accumulation and also discusses the importance of various strategies in facilitating the removal of aggregates species (refolding) in the treatment of neurological diseases such as chemical methods like as, small molecules, metal chelators, polymeric inhibitors, and nanomaterials, as well as the use of biomolecules (peptide and, protein, nucleic acid, and saccharide) as amyloid inhibitors, are also highlighted.
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Affiliation(s)
- Elaheh Tavili
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Fatemeh Aziziyan
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Khosro Khajeh
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
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2
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Foroutan Kalourazi A, Nazemi SA, Unniram Parambil AR, Muñoz-Tafalla R, Vidal P, Shahangian SS, Guallar V, Ferrer M, Shahgaldian P. Exploiting cyclodextrins as artificial chaperones to enhance enzyme protection through supramolecular engineering. NANOSCALE 2024; 16:5123-5129. [PMID: 38349359 DOI: 10.1039/d3nr06044f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
We report a method of enzyme stabilisation exploiting the artificial protein chaperone properties of β-cyclodextrin (β-CD) covalently embedded in an ultrathin organosilica layer. Putative interaction points of this artificial chaperone system with the surface of the selected enzyme were studied in silico using a protein energy landscape exploration simulation algorithm. We show that this enzyme shielding method allows for drastic enhancement of enzyme stability under thermal and chemical stress conditions, along with broadening the optimal temperature range of the biocatalyst. The presence of the β-CD macrocycle within the protective layer supports protein refolding after treatment with a surfactant.
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Affiliation(s)
- Ali Foroutan Kalourazi
- School of Life Science, University of Applied Sciences and Arts Northwestern Switzerland, Hofackerstrasse 30, Muttenz CH-4132, Switzerland.
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran.
| | - Seyed Amirabbas Nazemi
- School of Life Science, University of Applied Sciences and Arts Northwestern Switzerland, Hofackerstrasse 30, Muttenz CH-4132, Switzerland.
| | - Ajmal Roshan Unniram Parambil
- School of Life Science, University of Applied Sciences and Arts Northwestern Switzerland, Hofackerstrasse 30, Muttenz CH-4132, Switzerland.
- Swiss Nanoscience Institute, Klingelbergstrasse 82, Basel CH-4056, Switzerland
| | - Ruben Muñoz-Tafalla
- Barcelona Supercomputing Center (BSC), 08034 Barcelona, Spain
- Faculty of Pharmacy and Food Science, Universitat de Barcelona (UB), 08007 Barcelona, Spain
| | - Paula Vidal
- Instituto de Catalisis y Petroleoquimica (ICP), CSIC, 28049 Madrid, Spain
| | - S Shirin Shahangian
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran.
| | - Victor Guallar
- Barcelona Supercomputing Center (BSC), 08034 Barcelona, Spain
- Institution for Research and Advanced Studies (ICREA), 08010 Barcelona, Spain
| | - Manuel Ferrer
- Instituto de Catalisis y Petroleoquimica (ICP), CSIC, 28049 Madrid, Spain
| | - Patrick Shahgaldian
- School of Life Science, University of Applied Sciences and Arts Northwestern Switzerland, Hofackerstrasse 30, Muttenz CH-4132, Switzerland.
- Swiss Nanoscience Institute, Klingelbergstrasse 82, Basel CH-4056, Switzerland
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3
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Takeuchi S, Cesari A, Soma S, Suzuki Y, Casulli MA, Sato K, Mancin F, Hashimoto T, Hayashita T. Preparation of ultrasmall cyclodextrin nanogels by an inverse emulsion method using a cationic surfactant. Chem Commun (Camb) 2023; 59:4071-4074. [PMID: 36938636 DOI: 10.1039/d3cc00523b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
Stable water-in-oil emulsion membranes can be prepared using [dilauryl(dimethyl)ammonium] bromide (DDAB), a cationic surfactant. We prepared ultrasmall cyclodextrin (γ-CyD) nanogels (γ-CyDngs) by forming ionic pairs between the secondary hydroxyl groups of γ-CyDs and DDAB. Fluorescence and NMR characterisation of the obtained γ-CyDngs revealed superior inclusion affinities compared with native γ-CyDs, beneficial for the solubilisation of hydrophobic compounds in water.
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Affiliation(s)
- Satomi Takeuchi
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Andrea Cesari
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Suzuka Soma
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Yota Suzuki
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Maria Antonietta Casulli
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Kai Sato
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Fabrizio Mancin
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Takeshi Hashimoto
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Takashi Hayashita
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
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Morimoto N, Yamamoto M. Design of an LCST-UCST-Like Thermoresponsive Zwitterionic Copolymer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3261-3269. [PMID: 33689378 DOI: 10.1021/acs.langmuir.0c03128] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Thermoresponsive polymers that possess both UCST- and LCST-like behaviors have generally been designed using diblock copolymers that are mostly composed of an LCST-like polymer and a UCST polymer. Herein, we prepared an LCST-UCST-type polymer composed of UCST-like thermoresponsive zwitterionic sulfabetaine methacrylate and nonthermoresponsive PEG methacrylate, ZB-PEG, by reversible addition-fragmentation chain transfer (RAFT) copolymerization. By adjusting the PEG composition, ZB-PEG formed a mesoglobule, a microglobule, and the dissociated states in phosphate-buffered saline (PBS). These states were found to be reversible via temperature control. Moreover, this behavior showed high reversibility and succeeded in stabilizing horseradish peroxidase (HRP) in the dilute condition. Such thermoresponsive ZB-PEG can be applied over a wide range of applications in biotechnology and other fields.
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Affiliation(s)
- Nobuyuki Morimoto
- Department of Materials Processing, Graduate School of Engineering, Tohoku University, 6-6-02 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8579, Japan
| | - Masaya Yamamoto
- Department of Materials Processing, Graduate School of Engineering, Tohoku University, 6-6-02 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8579, Japan
- Graduate School of Medical Engineering, Tohoku University, 6-6-12 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8579, Japan
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Singh RS, Kaur N, Hassan M, Kennedy JF. Pullulan in biomedical research and development - A review. Int J Biol Macromol 2020; 166:694-706. [PMID: 33137388 DOI: 10.1016/j.ijbiomac.2020.10.227] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 10/28/2020] [Indexed: 12/14/2022]
Abstract
Pullulan is an imperative microbial exo-polymer commercially produced by yeast like fungus Aureobasidium pullulans. Its structure contains maltosyl repeating units which comprises two α-(1 → 4) linked glucopyranose rings attached to one glucopyranose ring through α-(1 → 6) glycosidic bond. The co-existence of α-(1 → 6) and α-(1 → 4) glycosidic linkages endows distinctive physico-chemical properties to pullulan. It is highly biocompatible, non-toxic and non-carcinogenic in nature. It is extremely resistant to any mutagenicity or immunogenicity. The unique properties of pullulan make it a potent candidate for biomedical applications viz. drug delivery, gene delivery, tissue engineering, molecular chaperon, plasma expander, vaccination, etc. This review highlights the potential of pullulan in biomedical research and development.
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Affiliation(s)
- Ram Sarup Singh
- Carbohydrate and Protein Biotechnology Laboratory, Department of Biotechnology, Punjabi University, Patiala 147 002, Punjab, India.
| | - Navpreet Kaur
- Carbohydrate and Protein Biotechnology Laboratory, Department of Biotechnology, Punjabi University, Patiala 147 002, Punjab, India
| | - Muhammad Hassan
- US-Pakistan Center for Advanced Studies in Energy, National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - John F Kennedy
- Chembiotech Laboratories, Advanced Science and Technology Institute, 5 The Croft, Buntsford Drive, Stoke Heath, Bromsgrove, Worcs B60 4JE, UK
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6
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Artificial chaperones: From materials designs to applications. Biomaterials 2020; 254:120150. [DOI: 10.1016/j.biomaterials.2020.120150] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/22/2020] [Accepted: 05/25/2020] [Indexed: 12/16/2022]
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Katsura S, Furuishi T, Ueda H, Yonemochi E. Synthesis and Characterization of Cholesteryl Conjugated Lysozyme (CHLysozyme). Molecules 2020; 25:molecules25163704. [PMID: 32823837 PMCID: PMC7465789 DOI: 10.3390/molecules25163704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 08/10/2020] [Accepted: 08/12/2020] [Indexed: 12/19/2022] Open
Abstract
Hydrophobic interaction is important for protein conformation. Conjugation of a hydrophobic group can introduce intermolecular hydrophobic contacts that can be contained within the molecule. It is possible that a strongly folded state can be formed in solution compared with the native state. In this study, we synthesized cholesteryl conjugated lysozyme (CHLysozyme) using lysozyme and cholesterol as the model protein and hydrophobic group, respectively. Cholesteryl conjugation to lysozyme was confirmed by nuclear-magnetic resonance. Differential-scanning calorimetry suggested that CHLysozyme was folded in solution. CHLysozyme secondary structure was similar to lysozyme, although circular dichroism spectra indicated differences to the tertiary structure. Fluorescence measurements revealed a significant increase in the hydrophobic surface of CHLysozyme compared with that of lysozyme; CHLysozyme self-associated by hydrophobic interaction of the conjugated cholesterol but the hydrophobic surface of CHLysozyme decreased with time. The results suggested that hydrophobic interaction changed from intramolecular interaction to an intermolecular interaction. Furthermore, the relative activity of CHLysozyme to lysozyme increased with time. Therefore, CHLysozyme likely forms a folded state with an extended durability of activity. Moreover, lysozyme was denatured in 100% DMSO but the local environment of tryptophan in CHLysozyme was similar to that of a native lysozyme. Thus, this study suggests that protein solution stability and resistance to organic solvents may be improved by conjugation of a hydrophobic group.
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Affiliation(s)
- Shinji Katsura
- Department of Physical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan; (S.K.); (T.F.); (H.U.)
- Formulation research Lab., Taiho Pharmaceutical Co., Ltd., 224-2, Ebisuno, Hiraishi, Kawauchi-cho, Tokushima 771-0194, Japan
| | - Takayuki Furuishi
- Department of Physical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan; (S.K.); (T.F.); (H.U.)
| | - Haruhisa Ueda
- Department of Physical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan; (S.K.); (T.F.); (H.U.)
| | - Etsuo Yonemochi
- Department of Physical Chemistry, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, 2-4-41 Ebara, Shinagawa-ku, Tokyo 142-8501, Japan; (S.K.); (T.F.); (H.U.)
- Correspondence: ; Tel.: +81-3-5498-5048
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Tailor-made electrically-responsive poly(acrylamide)-graft-pullulan copolymer based transdermal drug delivery systems: Synthesis, characterization, in-vitro and ex-vivo evaluation. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101525] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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9
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Abstract
Nanogels have attracted considerable attention as nanoscopic drug carriers, particularly for site-specific or time-controlled delivery of bioactive mediators. A high diversity of polymer systems and the simple modification of their physicochemical features have provided multipurpose forms of nanogel preparations. Nanogels have outstandingly high stability, drug loading ability, biologic consistence, good permeation capability and can be responsive to environmental stimuli. Great potential has been shown by nanogels in many fields including delivery of genes, chemotherapy drugs, diagnosis, targeting of specific organs and several others. This review focuses mainly on different types of nanogels, methods of preparation including methods of drug loading, different modes of biodegradation mechanisms as well as main mechanisms of drug release from nanogels. Recent applications of nanogels are also briefly discussed and exemplified.
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10
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Zhang T, Yang R, Yang S, Guan J, Zhang D, Ma Y, Liu H. Research progress of self-assembled nanogel and hybrid hydrogel systems based on pullulan derivatives. Drug Deliv 2018; 25:278-292. [PMID: 29334800 PMCID: PMC6058595 DOI: 10.1080/10717544.2018.1425776] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/02/2018] [Accepted: 01/05/2018] [Indexed: 01/29/2023] Open
Abstract
Polymer nano-sized hydrogels (nanogels) as drug delivery carriers have been investigated over the last few decades. Pullulan, a nontoxic and nonimmunogenic hydrophilic polysaccharide derived from fermentation of black yeast like Aureobasidium pullulans with great biocompatibility and biodegradability, is one of the most attractive carriers for drug delivery systems. In this review, we describe the preparation, characterization, and 'switch-on/off' mechanism of typical pullulan self-assembled nanogels (self-nanogels), and then introduce the development of hybrid hydrogels that are numerous resources applied for regenerative medicine. A major section is used for biomedical applications of different nanogel systems based on modified pullulan, which exert smart stimuli-responses at ambient conditions such as charge, pH, temperature, light, and redox. Pullulan self-nanogels have found increasingly extensive application in protein delivery, tissue engineering, vaccine development, cancer therapy, and biological imaging. Functional groups are incorporated into self-nanogels and contribute to expressing desirable results such as targeting and modified release. Various molecules, especially insoluble or unstable drugs and encapsulated proteins, present improved solubility and bioavailability as well as reduced side effects when incorporated into self-nanogels. Finally, the advantages and disadvantages of pullulan self-nanogels will be analyzed accordingly, and the development of pullulan nanogel systems will be reviewed.
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Affiliation(s)
- Tao Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Ruyi Yang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Shengnan Yang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Jibin Guan
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Dong Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Yan Ma
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hongzhuo Liu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
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11
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Ghaeidamini M, Kharat AN, Haertlé T, Ahmad F, Saboury AA. β-Cyclodextrin-Modified Magnetic Nanoparticles Immobilized on Sepharose Surface Provide an Effective Matrix for Protein Refolding. J Phys Chem B 2018; 122:9907-9919. [PMID: 30299940 DOI: 10.1021/acs.jpcb.8b07226] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In this article, we propose an impressive and facile strategy to improve protein refolding using solid phase artificial molecular chaperones consisting of the surface-functionalized magnetic nanoparticles. Specifically, monotosyl-β-cyclodextrin connected to the surface of 3-aminopropyltriethoxysilane (APES)-modified magnetic nanoparticles is immobilized on the sepharose surface to promote interaction with exposed hydrophobic surfaces of partially folded (intermediates) and unfolded states of proteins. Their efficiencies were investigated by circular dichroism spectroscopy and photoluminescence spectroscopy of the protein. Although the mechanism of this method is based on principles of hydrophobic chromatography, this system is not only purging the native protein from inactive inclusion bodies but also improving the protein refolding process. We chose β-cyclodextrin (β-CD) considering multiple reports in the literature about its efficiency in protein refolding and its biocompatibility. To increase the surface area/volume ratio of the sepharose surface by nanoparticles, more β-CD molecules are connected to the sepharose surface to make a better interaction with proteins. We suppose that proteins are isolated in the nanospace created by bound cyclodextrins on the resin surface so intermolecular interactions are reduced. The architecture of nanoparticles was characterized by Fourier transform infrared spectra, X-ray diffraction, scanning electron microscopy images, energy dispersive X-ray spectroscopy, nuclear magnetic resonance (1H NMR and 13C NMR), and dynamic light scattering.
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Affiliation(s)
- Marziyeh Ghaeidamini
- School of Chemistry, University Collage of Science , University of Tehran , Tehran , Iran
| | - Ali N Kharat
- School of Chemistry, University Collage of Science , University of Tehran , Tehran , Iran
| | - Thomas Haertlé
- Department of Animal Nutrition , Poznan University of Life Sciences , 60-637 Poznan , Poland.,Biopolymers, Interactions, Assemblies, UR 1268 , Institut National de la Recherche Agronomique , 44000 Nantes , France.,Institute of Biochemistry and Biophysics , University of Tehran , Tehran , Iran
| | - Faizan Ahmad
- Centre for Interdisciplinary Research in Basic Sciences , Jamia Millia Islamia , New Delhi 110025 , India
| | - Ali A Saboury
- Institute of Biochemistry and Biophysics , University of Tehran , Tehran , Iran
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12
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Nanogels of methylcellulose hydrophobized with N-tert-butylacrylamide for ocular drug delivery. Drug Deliv Transl Res 2017; 6:648-659. [PMID: 27807769 DOI: 10.1007/s13346-016-0337-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
While eye drops account for the majority of ophthalmic formulation for drug delivery, their efficiency is limited by rapid pre-corneal loss. In this study, we investigate nanogel suspensions in order to improve the topical ocular therapy by reducing dosage and frequency of administration. We synthesized self-assembling nanogels of 140 nm by grafting side chains of poly(N-tert-butylacrylamide) (PNtBAm) on methylcellulose via cerium ammonium nitrate. Successful grafting of PNtBAm onto methylcellulose (MC) was confirmed by both NMR and ATR. Synthesized molecules (MC-g-PNtBAm) self-assembled in water driven by hydrophobic interaction of the grafted side chains creating colloid solutions. Materials were synthesized by changing feed ratios of acid, initiator and monomer in order to control the degree of hydrophobic modification. The nanogels were tested for different degrees of grafting. Viability studies performed with HCE cells testified to the biocompatibility of poly(N-tert-butylacrylamide) grafted methylcellulose nanogels. Dexamethasone was entrapped with an efficiency superior to 95 % and its release presented minimal burst phase. Diffusion of drug from the nanogels was found to be delayed by increasing the degree of grafting. The release profile of the entrapped compound from the MC-g-PNtBAm nanogels can thus be tuned by simply adjusting the degree of hydrophobic modification. MC-g-PNtBAm nanogels present promising properties for ocular drug delivery.
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13
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Singh RS, Kaur N, Rana V, Kennedy JF. Pullulan: A novel molecule for biomedical applications. Carbohydr Polym 2017; 171:102-121. [DOI: 10.1016/j.carbpol.2017.04.089] [Citation(s) in RCA: 165] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 04/26/2017] [Accepted: 04/26/2017] [Indexed: 01/09/2023]
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14
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Bae SW, Eom D, Mai NL, Koo YM. Refolding of horseradish peroxidase is enhanced in presence of metal cofactors and ionic liquids. Biotechnol J 2016; 11:464-72. [PMID: 26901453 DOI: 10.1002/biot.201500142] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 01/04/2016] [Accepted: 02/19/2016] [Indexed: 11/11/2022]
Abstract
The effects of various refolding additives, including metal cofactors, organic co-solvents, and ionic liquids, on the refolding of horseradish peroxidase (HRP), a well-known hemoprotein containing four disulfide bonds and two different types of metal centers, a ferrous ion-containing heme group and two calcium atoms, which provide a stabilizing effect on protein structure and function, were investigated. Both metal cofactors (Ca(2+) and hemin) and ionic liquids have positive impact on the refolding of HRP. For instance, the HRP refolding yield remarkably increased by over 3-fold upon addition of hemin and calcium chloride to the refolding buffer as compared to that in the conventional urea-containing refolding buffer. Moreover, the addition of ionic liquids [EMIM][Cl] to the hemin and calcium cofactor-containing refolding buffer further enhanced the HRP refolding yield up to 80% as compared to 12% in conventional refolding buffer at relatively high initial protein concentration (5 mg/ml). These results indicated that refolding method utilizing metal cofactors and ionic liquids could enhance the yield and efficiency for metalloprotein.
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Affiliation(s)
- Sang-Woo Bae
- Department of Biological Engineering, Inha University, Incheon, Republic of Korea
| | - Doyoung Eom
- Department of Biological Engineering, Inha University, Incheon, Republic of Korea
| | - Ngoc Lan Mai
- Department of Biological Engineering, Inha University, Incheon, Republic of Korea.,Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Yoon-Mo Koo
- Department of Biological Engineering, Inha University, Incheon, Republic of Korea.
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15
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Chan M, Almutairi A. Nanogels as imaging agents for modalities spanning the electromagnetic spectrum. MATERIALS HORIZONS 2016; 3:21-40. [PMID: 27398218 PMCID: PMC4906372 DOI: 10.1039/c5mh00161g] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 09/25/2015] [Indexed: 05/05/2023]
Abstract
In the past few decades, advances in imaging equipment and protocols have expanded the role of imaging in in vivo diagnosis and disease management, especially in cancer. Traditional imaging agents have rapid clearance and low specificity for disease detection. To improve accuracy in disease identification, localization and assessment, novel nanomaterials are frequently explored as imaging agents to achieve high detection specificity and sensitivity. A promising material for this purpose are hydrogel nanoparticles, whose high hydrophilicity, biocompatibility, and tunable size in the nanometer range make them ideal for imaging. These nanogels (10 to 200 nm) can circumvent uptake by the reticuloendothelial system, allowing longer circulation times than small molecules. In addition, their size/surface properties can be further tailored to optimize their pharmacokinetics for imaging of a particular disease. Herein, we provide a comprehensive review of nanogels as imaging agents in various modalities with sources of signal spanning the electromagnetic spectrum, including MRI, NIR, UV-vis, and PET. Many materials and formulation methods will be reviewed to highlight the versatility of nanogels as imaging agents.
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Affiliation(s)
- Minnie Chan
- Department of Chemistry and Biochemistry , University of California , San Diego , La Jolla , CA 92093-0600 , USA
| | - Adah Almutairi
- Skaggs School of Pharmacy and Pharmaceutical Sciences , KACST-UCSD Center of Excellence in Nanomedicine , Laboratory of Bioresponsive Materials , University of California , 9500 Gilman Dr., 0600 , PSB 2270 , La Jolla , San Diego , CA 92093-0600 , USA . ; Tel: +1 (858) 246 0871
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16
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Alhaique F, Matricardi P, Di Meo C, Coviello T, Montanari E. Polysaccharide-based self-assembling nanohydrogels: An overview on 25-years research on pullulan. J Drug Deliv Sci Technol 2015. [DOI: 10.1016/j.jddst.2015.06.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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17
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Li Y, Maciel D, Rodrigues J, Shi X, Tomás H. Biodegradable Polymer Nanogels for Drug/Nucleic Acid Delivery. Chem Rev 2015; 115:8564-608. [PMID: 26259712 DOI: 10.1021/cr500131f] [Citation(s) in RCA: 324] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yulin Li
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
- The State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, Engineering Research Centre for Biomedical Materials of Ministry of Education, East China University of Science and Technology , Shanghai 200237, People's Republic of China
| | - Dina Maciel
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
| | - João Rodrigues
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
| | - Xiangyang Shi
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University , Shanghai 201620, People's Republic of China
| | - Helena Tomás
- CQM-Centro de Química da Madeira, MMRG, Universidade da Madeira , Campus da Penteada 9000-390, Funchal, Portugal
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Singh RS, Kaur N, Kennedy JF. Pullulan and pullulan derivatives as promising biomolecules for drug and gene targeting. Carbohydr Polym 2015; 123:190-207. [DOI: 10.1016/j.carbpol.2015.01.032] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 01/03/2015] [Accepted: 01/14/2015] [Indexed: 12/22/2022]
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19
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Iijima K, Hashizume M. Application of Polysaccharides as Structural Materials. TRENDS GLYCOSCI GLYC 2015. [DOI: 10.4052/tigg.1419.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
| | - Mineo Hashizume
- Department of Industrial Chemistry, Tokyo University of Science
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20
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Zhang X, Malhotra S, Molina M, Haag R. Micro- and nanogels with labile crosslinks – from synthesis to biomedical applications. Chem Soc Rev 2015; 44:1948-73. [DOI: 10.1039/c4cs00341a] [Citation(s) in RCA: 239] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We emphasize the synthetic strategies to produce micro-/nanogels and the importance of degradable linkers incorporated in the gel network.
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Affiliation(s)
- Xuejiao Zhang
- Institute of Chemistry and Biochemistry
- Freie Universität Berlin
- Berlin 14195
- Germany
| | - Shashwat Malhotra
- Institute of Chemistry and Biochemistry
- Freie Universität Berlin
- Berlin 14195
- Germany
| | - Maria Molina
- Institute of Chemistry and Biochemistry
- Freie Universität Berlin
- Berlin 14195
- Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry
- Freie Universität Berlin
- Berlin 14195
- Germany
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21
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Martin N, Ruchmann J, Tribet C. Prevention of aggregation and renaturation of carbonic anhydrase via weak association with octadecyl- or azobenzene-modified poly(acrylate) derivatives. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 31:338-349. [PMID: 25495869 DOI: 10.1021/la503643q] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The prevention of aggregation during renaturation of urea-denatured carbonic anhydrase B (CAB) via hydrophobic and Coulomb association with anionic polymers was studied in mixed solutions of CAB and amphiphilic poly(acrylate) copolymers. The polymers were derivatives of a parent poly(acrylic acid) randomly grafted with hydrophobic side groups (either 3 mol % octadecyl group, or 1-5 mol % alkylamidoazobenzene photoresponsive groups). CAB:polymer complexes were characterized by light scattering and fluorescence correlation spectroscopy in aqueous buffers (pH 7.75 or 5.9). Circular dichroism and enzyme activity assays enabled us to study the kinetics of renaturation. All copolymers, including the hydrophilic PAA parent chain, provided a remarkable protective effect against CAB aggregation during renaturation, and most of them (but not the octadecyl-modified one) markedly enhanced the regain of activity as compared to CAB alone. The significant role of Coulomb binding in renaturation and comparatively the lack of efficacy of hydrophobic association was highlighted by measurements of activity regain before and after in situ dissociation of hydrophobic complexes (achieved by phototriggering the polarity of azobenzene-modified polymers under exposure to UV light). In the presence of polymers (CAB:polymer of 1:1 w/w ratio) at concentration ∼0.6 g L(-1), the radii of the largest complexes were similar to the radii of the copolymers alone, suggesting that the binding of CAB involves one or a few polymer chain(s). These complexes dissociated by dilution (0.01 g L(-1)). It is concluded that prevention of irreversible aggregation and activity recovery were achieved when marginally stable complexes are formed. Reaching a balanced stability of the complex plays the main role in CAB renaturation, irrespective of the nature of the binding (by Coulomb association, with or without contribution of hydrophobic association).
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Affiliation(s)
- Nicolas Martin
- Département de Chimie, Ecole Normale Supérieure-PSL Research University , 24, rue Lhomond, 75005, Paris, France
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22
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Sharma A, Garg T, Aman A, Panchal K, Sharma R, Kumar S, Markandeywar T. Nanogel--an advanced drug delivery tool: Current and future. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2014; 44:165-77. [PMID: 25053442 DOI: 10.3109/21691401.2014.930745] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Nanogels are robust nanoparticles that could be used to deliver active drug compounds in controlled drug delivery applications. Nanogels drug delivery system is more effective and safer for both hydrophilic and hydrophobic drugs due to their chemical composition and formulations that are inappropriate for other formulations. Nanogels have enabled enlargement of functionalized nanoparticles, which act as a drug carriers that can be loaded with drugs and other active material to be released in a controlled manner at specific site. This review aims at providing general introduction on nanogels, recent synthesis methodology and their novel application in different fields.
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Affiliation(s)
- Ankita Sharma
- a Department of Pharmaceutics , ISF College of Pharmacy, Punjab Technical University , Moga , Punjab , India
| | - Tarun Garg
- a Department of Pharmaceutics , ISF College of Pharmacy, Punjab Technical University , Moga , Punjab , India
| | - Amrinder Aman
- a Department of Pharmaceutics , ISF College of Pharmacy, Punjab Technical University , Moga , Punjab , India
| | - Kushan Panchal
- a Department of Pharmaceutics , ISF College of Pharmacy, Punjab Technical University , Moga , Punjab , India
| | - Rajiv Sharma
- b Department of Pharmaceutical Chemistry , ISF College of Pharmacy, Punjab Technical University , Moga , Punjab , India
| | - Sahil Kumar
- b Department of Pharmaceutical Chemistry , ISF College of Pharmacy, Punjab Technical University , Moga , Punjab , India
| | - Tanmay Markandeywar
- a Department of Pharmaceutics , ISF College of Pharmacy, Punjab Technical University , Moga , Punjab , India
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23
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Concheiro A, Alvarez-Lorenzo C. Chemically cross-linked and grafted cyclodextrin hydrogels: from nanostructures to drug-eluting medical devices. Adv Drug Deliv Rev 2013; 65:1188-203. [PMID: 23631979 DOI: 10.1016/j.addr.2013.04.015] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 04/15/2013] [Accepted: 04/22/2013] [Indexed: 12/13/2022]
Abstract
The unique ability of cyclodextrins (CDs) to form inclusion complexes can be transmitted to polymeric networks in which CDs are chemically grafted or cross-linked. Combination of CDs and hydrogels in a single material leads to synergic properties: the hydrophilic network enhances biocompatibility and prevents dilution in the physiological medium increasing the stability of the inclusion complexes, while CDs finely tune the mechanical features and the stimuli-responsiveness and provide affinity-based regulation of drug loading and release. Therefore, CD-functionalized materials are opening new perspectives in pharmacotherapy, emerging as advanced delivery systems (DDS) for hydrophobic and hydrophilic drugs to be administered via almost any route. Medical devices (catheters, prosthesis, vascular grafts, bone implants) can also benefit from surface grafting or thermofixation of CDs. The present review focuses on the approaches tested to synthesize nano- to macro-size covalently cross-linked CD networks: i) direct cross-linking through condensation with di- or multifunctional reagents, ii) copolymerization of CD derivatives with acrylic/vinyl monomers, and iii) grafting of CDs to preformed medical devices. Examples of the advantages of having the CDs chemically bound among themselves and to substrates are provided and their applicability in therapeutics discussed.
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24
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Han GJ, Dong XY, Sun Y. Purification effect of artificial chaperone in the refolding of recombinant ribonuclease A from inclusion bodies. Biochem Eng J 2013. [DOI: 10.1016/j.bej.2013.04.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Liao X, Chen G, Jiang M. Hydrogels locked by molecular recognition aiming at responsiveness and functionality. Polym Chem 2013. [DOI: 10.1039/c2py20693e] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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26
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Moya-Ortega MD, Alves TFG, Alvarez-Lorenzo C, Concheiro A, Stefánsson E, Thorsteinsdóttir M, Loftsson T. Dexamethasone eye drops containing γ-cyclodextrin-based nanogels. Int J Pharm 2012; 441:507-15. [PMID: 23149258 DOI: 10.1016/j.ijpharm.2012.11.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 11/02/2012] [Accepted: 11/03/2012] [Indexed: 11/17/2022]
Abstract
Sustained release aqueous eye drops of dexamethasone, based on cyclodextrin (CD) nanogels, were designed and tested in vivo. γCD units were cross-linked in the form of nanogels by means of an emulsification/solvent evaporation process. The composition of the nanogels was optimized with regard to drug loading and release rate. The eye drops consisted of an aqueous solution of dexamethasone in 2-hydroxypropyl-γ-cyclodextrin (HPγCD) medium containing γCD nanogels. The nanogel eye drops (containing 25 mg dexamethasone per ml) were tested in rabbits and compared to the commercially available product Maxidex(®) (suspension with 1 mg dexamethasone per ml). One drop administration of the nanogel eye drops resulted in nearly constant dexamethasone concentration for at least 6h in the tear fluid (mean concentration±SD=295±59 μg/ml) whereas the concentration after administration of Maxidex(®) fell rapidly from 9.72±3.45 μg/ml 1 h after application to 3.76±3.26 μg/ml 3 h after application. The maximum dexamethasone concentration in the aqueous humor (2 h after application) was 136±24 mg/ml after application of the nanogel eye drops, and only 44.4±7.8 μg/ml after application of Maxidex(®). The dexamethasone nanogel eye drops were well tolerated with no macroscopic signs of irritation, redness or other toxic effects.
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Affiliation(s)
- Maria D Moya-Ortega
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
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27
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Goli KK, Rojas OJ, Genzer J. Formation and Antifouling Properties of Amphiphilic Coatings on Polypropylene Fibers. Biomacromolecules 2012; 13:3769-79. [DOI: 10.1021/bm301223b] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Orlando J. Rojas
- Department
of Forest Products
Technology, Aalto University, FI-00076
Aalto, Espoo, Finland
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28
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Sun J, Ruchmann J, Pallier A, Jullien L, Desmadril M, Tribet C. Unfolding of Cytochrome c upon Interaction with Azobenzene-Modified Copolymers. Biomacromolecules 2012; 13:3736-46. [DOI: 10.1021/bm301200p] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Jing Sun
- Ecole Normale Supérieure, Département de chimie, UMR8640 CNRS-ENS-UPMC, 24 rue Lhomond, F-75005 Paris, France
| | - Juliette Ruchmann
- Ecole Normale Supérieure, Département de chimie, UMR8640 CNRS-ENS-UPMC, 24 rue Lhomond, F-75005 Paris, France
| | - A. Pallier
- ESPCI, Physico-Chimie
des Polymeres et Milieux Disperses, CNRS UMR7615, 10 rue Vauquelin, 75005 Paris, France
| | - L. Jullien
- Ecole Normale Supérieure, Département de chimie, UMR8640 CNRS-ENS-UPMC, 24 rue Lhomond, F-75005 Paris, France
| | - M. Desmadril
- Laboratoire de Modélisation
et d’Ingénierie des Protéines, UMR8619, Université de Paris-Sud, Bât 430, F-91405
ORSAY CEDEX, France
| | - Christophe Tribet
- Ecole Normale Supérieure, Département de chimie, UMR8640 CNRS-ENS-UPMC, 24 rue Lhomond, F-75005 Paris, France
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29
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Sasaki Y, Akiyoshi K. Self-assembled Nanogel Engineering for Advanced Biomedical Technology. CHEM LETT 2012. [DOI: 10.1246/cl.2012.202] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yoshihiro Sasaki
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University
| | - Kazunari Akiyoshi
- Graduate School of Engineering, Kyoto University
- ERATO, Japan Science and Technology Agency (JST)
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30
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Moya-Ortega MD, Alvarez-Lorenzo C, Concheiro A, Loftsson T. Cyclodextrin-based nanogels for pharmaceutical and biomedical applications. Int J Pharm 2012; 428:152-63. [PMID: 22388054 DOI: 10.1016/j.ijpharm.2012.02.038] [Citation(s) in RCA: 136] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Revised: 02/22/2012] [Accepted: 02/23/2012] [Indexed: 11/18/2022]
Abstract
Hydrophilic nanogels combine the advantages of hydrogels with certain advantages that are inherent in their nanoscale size. Similar to macrogels, nanogels can contain and protect drugs and regulate their release by incorporating high-affinity functional groups, stimuli-responsive conformations and biodegradable bonds into the polymer network. Similar to nanoparticles, nanogels can easily be administered in liquid form for parenteral drug delivery. The nanoscale size of nanogels gives them a high specific surface area that is available for further bioconjugation of active targeting agents. Biodistribution and drug release can be modulated through size adjustments. The incorporation of hydrophilic cyclodextrin (CD) moieties into the polymeric network of the nanogels provides them with a drug loading and release mechanism that is based on the formation of inclusion complexes without decreasing the hydrophilicity of the network. The covalent attachment of CD molecules to the chemically crosslinked networks may enable the CDs to display fully their ability to form complexes, while simultaneously preventing drug release upon media dilution. The preparation, characterization and advantages for pharmaceutical and biomedical applications of CD-based nanogels are reviewed in this article.
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Affiliation(s)
- Maria D Moya-Ortega
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
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