101
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Nontoxic silver nanocluster-induced folding, fibrillation, and aggregation of blood plasma proteins. Int J Biol Macromol 2018; 119:838-848. [DOI: 10.1016/j.ijbiomac.2018.07.177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 07/27/2018] [Accepted: 07/28/2018] [Indexed: 11/18/2022]
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102
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Exploring the effects of methylene blue on amyloid fibrillogenesis of lysozyme. Int J Biol Macromol 2018; 119:1059-1067. [DOI: 10.1016/j.ijbiomac.2018.08.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 08/07/2018] [Accepted: 08/08/2018] [Indexed: 12/28/2022]
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103
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Wawer J, Szociński M, Olszewski M, Piątek R, Naczk M, Krakowiak J. Influence of the ionic strength on the amyloid fibrillogenesis of hen egg white lysozyme. Int J Biol Macromol 2018; 121:63-70. [PMID: 30290259 DOI: 10.1016/j.ijbiomac.2018.09.165] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 09/17/2018] [Accepted: 09/25/2018] [Indexed: 10/28/2022]
Abstract
The study investigates the role of the electrostatic interactions in the fibrillation of the hen egg white lysozyme (HEWL). In order to achieve this aim the influence of the cations Na+, Mg2+ and Al3+ on the amyloid fibril formation and amorphous aggregation was tested. The amyloids are formed in the solution without added salt but the Thioflavin T fluorescence gives the false-negative result. In these conditions, the HEWL fibrils are long and curvy. If the ionic strength of the solution is sufficiently high, the formed amyloids are shorter and fragmented. Our study shows that the addition of the aluminium salt promotes protein fibrillation. The amorphous aggregation dominates in the high concentration of electrolyte. The in vitro amyloid fibril formation seems to be regulated by universal mechanisms. The theories implemented in the polymer science or for colloidal solutions give the qualitative description of the aggregation phenomena. However, the specific interactions and the additional effects (e.g. fibril fragmentation) modulate the amyloidogenesis.
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Affiliation(s)
- Jarosław Wawer
- Department of Physical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Str. 11/12, Gdańsk 80-233, Poland.
| | - Michał Szociński
- Department of Electrochemistry, Corrosion and Materials Engineering, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Str. 11/12, Gdańsk 80-233, Poland
| | - Marcin Olszewski
- Department of Molecular Biotechnology and Microbiology, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Str. 11/12, Gdańsk 80-233, Poland
| | - Rafał Piątek
- Department of Molecular Biotechnology and Microbiology, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Str. 11/12, Gdańsk 80-233, Poland
| | - Mateusz Naczk
- Department of Physical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Str. 11/12, Gdańsk 80-233, Poland
| | - Joanna Krakowiak
- Department of Physical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza Str. 11/12, Gdańsk 80-233, Poland
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104
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Mahdavimehr M, Katebi B, Meratan AA. Effect of fibrillation conditions on the anti-amyloidogenic properties of polyphenols and their involved mechanisms. Int J Biol Macromol 2018; 118:552-560. [DOI: 10.1016/j.ijbiomac.2018.06.109] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/12/2018] [Accepted: 06/22/2018] [Indexed: 12/28/2022]
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105
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Wang W, Roberts CJ. Protein aggregation – Mechanisms, detection, and control. Int J Pharm 2018; 550:251-268. [DOI: 10.1016/j.ijpharm.2018.08.043] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 08/18/2018] [Accepted: 08/20/2018] [Indexed: 12/19/2022]
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106
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Zhu S, Xi XB, Duan TL, Zhai Y, Li J, Yan YB, Yao K. The cataract-causing mutation G75V promotes γS-crystallin aggregation by modifying and destabilizing the native structure. Int J Biol Macromol 2018; 117:807-814. [DOI: 10.1016/j.ijbiomac.2018.05.220] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/25/2018] [Accepted: 05/29/2018] [Indexed: 12/31/2022]
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107
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Md S, Gan SY, Haw YH, Ho CL, Wong S, Choudhury H. In vitro neuroprotective effects of naringenin nanoemulsion against β-amyloid toxicity through the regulation of amyloidogenesis and tau phosphorylation. Int J Biol Macromol 2018; 118:1211-1219. [DOI: 10.1016/j.ijbiomac.2018.06.190] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 06/27/2018] [Accepted: 06/30/2018] [Indexed: 11/16/2022]
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108
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Li CT, How SC, Chen ME, Lo CH, Chun MC, Chang CK, Chen WA, Wu JW, Wang SSS. Effects of glycation on human γd-crystallin proteins by different glycation-inducing agents. Int J Biol Macromol 2018; 118:442-451. [DOI: 10.1016/j.ijbiomac.2018.06.108] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/17/2018] [Accepted: 06/22/2018] [Indexed: 01/22/2023]
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109
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Silica nanoparticles induce conformational changes of tau protein and oxidative stress and apoptosis in neuroblastoma cell line. Int J Biol Macromol 2018; 124:1312-1320. [PMID: 30248427 DOI: 10.1016/j.ijbiomac.2018.09.118] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 09/19/2018] [Accepted: 09/20/2018] [Indexed: 12/31/2022]
Abstract
The adverse effects of SiO2 NPs on the biological systems like nervous system have not been well explored. This study aimed to evaluate the toxicity of SiO2 NPs on the nervous system in vitro. Therefore, human tau protein and neuroblastoma cell line (SH-SY5Y) were used as targets. In this study we examined the side effects of SiO2 NPs on tau protein structure using several techniques including CD, ANS fluorescence, UV-vis (360 nm), Congo red absorbance, TEM, and molecular dynamic. Also, the cytotoxicity effects of SiO2 NPs against SH-SY5Y cell line were evaluated using MTT, ROS and apoptotic assays. Spectroscopic and molecular dynamic investigations indicated that natively unfolded structure of tau in the presence of SiO2 NPs experienced a partially folded and amorphous aggregated structure. Cellular assay demonstrated that SiO2 NPs exerted cytotoxic effect on SH-SY5Y cells through ROS accumulation and induction of apoptosis. Overall, these findings proved that SiO2 NPs could induce adverse effects on tau structure and SH-SY5Y cell integrity. Moreover, further studies are required to elucidate the molecular mechanism of SiO2 NPs-induced side effects in vivo.
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110
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Ansari SS, Yousuf I, Arjmand F, Siddiqi MK, Naqvi S. Exploring the intermolecular interactions and contrasting binding of flufenamic acid with hemoglobin and lysozyme: A biophysical and docking insight. Int J Biol Macromol 2018; 116:1105-1118. [DOI: 10.1016/j.ijbiomac.2018.05.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 04/22/2018] [Accepted: 05/10/2018] [Indexed: 12/13/2022]
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111
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Effects of allantoin and dimethyl sulfoxide on the thermal aggregation of lysozyme. Int J Biol Macromol 2018; 119:180-185. [PMID: 30009897 DOI: 10.1016/j.ijbiomac.2018.07.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 07/02/2018] [Accepted: 07/11/2018] [Indexed: 11/24/2022]
Abstract
Allantoin is used to suppress protein aggregation without decreasing the melting temperature. However, the solubility of allantoin in water or buffer solutions is too low (approximately 30 mM at ambient temperature) to be used as a protein aggregation suppressor in various situations. Here we show that a high-concentration solution of allantoin in neat dimethyl sulfoxide (DMSO) is useful as a stock solution for the additive that controls protein aggregation. The allantoin concentration from 10 to 100 mM in 10% (v/v) DMSO significantly suppressed the thermal aggregation of hen egg white lysozyme as a model protein, with increasing allantoin concentration. The residual activity of lysozyme in 10% DMSO and 100 mM allantoin after heating at 90 °C for 10 min was increased >3-fold compared to that without allantoin. Thus, it was concluded that allantoin in DMSO is an effective stock solution for practical application in enhancing the recovery of enzymatic activity and suppressing the formation of small aggregate of protein.
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112
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Riccardi C, Musumeci D, Russo Krauss I, Piccolo M, Irace C, Paduano L, Montesarchio D. Exploring the conformational behaviour and aggregation properties of lipid-conjugated AS1411 aptamers. Int J Biol Macromol 2018; 118:1384-1399. [PMID: 30170359 DOI: 10.1016/j.ijbiomac.2018.06.137] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 06/23/2018] [Accepted: 06/26/2018] [Indexed: 12/19/2022]
Abstract
AS1411 is a nucleolin-binding aptamer which attracted great interest as active targeting ligand for the selective delivery of therapeutic agents to tumour cells. In this work we selected three AS1411 derivatives 5'-conjugated with lipophilic tails and studied their properties in view of their application in liposomial formulations and/or lipid coated-nanoparticles for targeted therapies. The conformational behaviour of these AS1411 analogs has been investigated in comparison with the unmodified aptamer by CD, UV, PAGE, SEC-HPLC, DLS and thioflavin T (ThT) fluorescence assays to get insight in their secondary structure and aggregation properties. This study has been performed in pseudo-physiological buffers mimicking the extra- and intracellular environments, and at different concentrations in the μM range, paying special attention to the effects of the lipophilic tail on the overall aptamer conformation. The 5'-lipidated AS1411 derivatives proved to fold into stable, parallel unimolecular G-quadruplex structures, forming large aggregates, mainly micelles, at conc. >10 μM. Preliminary bioscreenings on selected cancer cells showed that these derivatives are less cytotoxic than AS1411, but maintain a similar biological behaviour. This study demonstrated that lipophilic tails dramatically favour the formation of AS1411 aggregates, however not impairing the formation and thermal stability of its peculiar G4 motifs.
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Affiliation(s)
- Claudia Riccardi
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, I-80126 Napoli, Italy
| | - Domenica Musumeci
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, I-80126 Napoli, Italy; Institute of Biostructures and Bioimages, CNR, Via Mezzocannone 16, I-80134 Napoli, Italy
| | - Irene Russo Krauss
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, I-80126 Napoli, Italy; CSGI - Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase, Via della Lastruccia 3, I-50019 Sesto Fiorentino (Fi), Italy
| | - Marialuisa Piccolo
- Department of Pharmacy, School of Medicine and Surgery, University of Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Carlo Irace
- Department of Pharmacy, School of Medicine and Surgery, University of Napoli Federico II, Via D. Montesano 49, 80131 Napoli, Italy
| | - Luigi Paduano
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, I-80126 Napoli, Italy; CSGI - Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase, Via della Lastruccia 3, I-50019 Sesto Fiorentino (Fi), Italy
| | - Daniela Montesarchio
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 21, I-80126 Napoli, Italy; Institute for Endocrinology and Oncology "Gaetano Salvatore", CNR, Via Pansini 5, 80131 Napoli, Italy.
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113
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Patel P, Parmar K, Patel D, Kumar S, Trivedi M, Das M. Inhibition of amyloid fibril formation of lysozyme by ascorbic acid and a probable mechanism of action. Int J Biol Macromol 2018; 114:666-678. [DOI: 10.1016/j.ijbiomac.2018.03.152] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 03/23/2018] [Accepted: 03/25/2018] [Indexed: 12/20/2022]
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114
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Dhouafli Z, Leri M, Bucciantini M, Stefani M, Gadhoumi H, Mahjoub B, Ben Jannet H, Guillard J, Tounsi MS, Ksouri R, Hayouni EA. A new purified Lawsoniaside remodels amyloid-β42 fibrillation into a less toxic and non-amyloidogenic pathway. Int J Biol Macromol 2018; 114:830-835. [DOI: 10.1016/j.ijbiomac.2018.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 03/28/2018] [Accepted: 04/03/2018] [Indexed: 10/17/2022]
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115
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Santos JCN, da Silva IM, Braga TC, de Fátima Â, Figueiredo IM, Santos JCC. Thimerosal changes protein conformation and increase the rate of fibrillation in physiological conditions: Spectroscopic studies using bovine serum albumin (BSA). Int J Biol Macromol 2018; 113:1032-1040. [DOI: 10.1016/j.ijbiomac.2018.02.116] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 02/11/2018] [Accepted: 02/18/2018] [Indexed: 11/28/2022]
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116
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Wu H, Zeng W, Chen L, Yu B, Guo Y, Chen G, Liang Z. Integrated multi-spectroscopic and molecular docking techniques to probe the interaction mechanism between maltase and 1-deoxynojirimycin, an α-glucosidase inhibitor. Int J Biol Macromol 2018; 114:1194-1202. [DOI: 10.1016/j.ijbiomac.2018.04.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/03/2018] [Accepted: 04/05/2018] [Indexed: 12/16/2022]
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117
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Zhang Y, Zhu Z, Liang HY, Zhang L, Zhou QG, Ni HY, Luo CX, Zhu DY. nNOS-CAPON interaction mediates amyloid-β-induced neurotoxicity, especially in the early stages. Aging Cell 2018; 17:e12754. [PMID: 29577585 PMCID: PMC5946066 DOI: 10.1111/acel.12754] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/10/2018] [Indexed: 12/11/2022] Open
Abstract
In neurons, increased protein–protein interactions between neuronal nitric oxide synthase (nNOS) and its carboxy‐terminal PDZ ligand (CAPON) contribute to excitotoxicity and abnormal dendritic spine development, both of which are involved in the development of Alzheimer's disease. In models of Alzheimer's disease, increased nNOS–CAPON interaction was detected after treatment with amyloid‐β in vitro, and a similar change was found in the hippocampus of APP/PS1 mice (a transgenic mouse model of Alzheimer's disease), compared with age‐matched background mice in vivo. After blocking the nNOS–CAPON interaction, memory was rescued in 4‐month‐old APP/PS1 mice, and dendritic impairments were ameliorated both in vivo and in vitro. Furthermore, we demonstrated that S‐nitrosylation of Dexras1 and inhibition of the ERK–CREB–BDNF pathway might be downstream of the nNOS–CAPON interaction.
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Affiliation(s)
- Yu Zhang
- Department of Pharmacology; Nanjing Medical University; Nanjing China
| | - Zhu Zhu
- Department of Pharmacy; Second Affiliated Hospital of Soochow University; Suzhou China
| | - Hai-Ying Liang
- Department of Pharmacology; Nanjing Medical University; Nanjing China
| | - Lei Zhang
- Department of Pharmacology; Nanjing Medical University; Nanjing China
| | - Qi-Gang Zhou
- Department of Pharmacology; Nanjing Medical University; Nanjing China
| | - Huan-Yu Ni
- Department of Pharmacology; Nanjing Medical University; Nanjing China
| | - Chun-Xia Luo
- Department of Pharmacology; Nanjing Medical University; Nanjing China
| | - Dong-Ya Zhu
- Department of Pharmacology; Nanjing Medical University; Nanjing China
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118
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The combined effect of formulation and pH on properties of polyethylene oxide composite fiber containing egg albumen protein. Int J Biol Macromol 2018; 112:996-1004. [DOI: 10.1016/j.ijbiomac.2018.02.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 02/07/2018] [Accepted: 02/08/2018] [Indexed: 12/11/2022]
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119
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Arad E, Bhunia SK, Jopp J, Kolusheva S, Rapaport H, Jelinek R. Lysine-Derived Carbon Dots for Chiral Inhibition of Prion Peptide Fibril Assembly. ADVANCED THERAPEUTICS 2018. [DOI: 10.1002/adtp.201800006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Elad Arad
- Department of Chemistry; Ben Gurion University of the Negev; Beer Sheva 84105 Israel
| | - Susanta Kumar Bhunia
- Department of Chemistry; Ben Gurion University of the Negev; Beer Sheva 84105 Israel
| | - Jürgen Jopp
- Ilse Katz Institute (IKI) for Nanoscale Science and Technology; Ben Gurion University of the Negev; Beer Sheva 84105 Israel
| | - Sofiya Kolusheva
- Ilse Katz Institute (IKI) for Nanoscale Science and Technology; Ben Gurion University of the Negev; Beer Sheva 84105 Israel
| | - Hanna Rapaport
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering and Ilse Katz Institute (IKI) for Nanoscale Science and Technology; Ben Gurion University of the Negev; Beer Sheva 84105 Israel
| | - Raz Jelinek
- Department of Chemistry; Ben Gurion University of the Negev; Beer Sheva 84105 Israel
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120
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Abstract
Self-assembled peptide nanostructures have been increasingly exploited as functional materials for applications in biomedicine and energy. The emergent properties of these nanomaterials determine the applications for which they can be exploited. It has recently been appreciated that nanomaterials composed of multicomponent coassembled peptides often display unique emergent properties that have the potential to dramatically expand the functional utility of peptide-based materials. This review presents recent efforts in the development of multicomponent peptide assemblies. The discussion includes multicomponent assemblies derived from short low molecular weight peptides, peptide amphiphiles, coiled coil peptides, collagen, and β-sheet peptides. The design, structure, emergent properties, and applications for these multicomponent assemblies are presented in order to illustrate the potential of these formulations as sophisticated next-generation bio-inspired materials.
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Affiliation(s)
- Danielle M Raymond
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
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121
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Ishrat M, Hassan MI, Ahmad F, Islam A. Sugar osmolytes-induced stabilization of RNase A in macromolecular crowded cellular environment. Int J Biol Macromol 2018; 115:349-357. [PMID: 29665392 DOI: 10.1016/j.ijbiomac.2018.04.073] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 03/27/2018] [Accepted: 04/13/2018] [Indexed: 10/17/2022]
Abstract
Organisms synthesize sugar osmolytes during environmental stresses to protect proteins against denaturation. These studies were carried out in dilute buffer whereas intracellular milieu within cells has cytoplasmic concentration of macromolecules in the range of 80-400 mg ml-1. Is the stabilizing effect of sugar osmolytes on the protein in dilute buffer different from that when protein is in cellular environment? To answer this question, we have measured and analysed the effect of sugar osmolytes on the structural and thermodynamic stability of ribonuclease A in the presence of dextran 70 at multiple concentrations of six sugars at different pH values. It was found that (i) each sugar osmolyte in the crowded environment provides stability to the protein in terms of Tm (midpoint of denaturation) and ∆GD° (Gibbs energy change) and this stabilizing effect is under entropic control, (ii) the extent of osmolyte-induced stabilization of RNase A is pH dependent, and (iii) effect of sugars on the stability of protein in presence of the crowding agent remains unchanged. This study concludes that crowding does not affect the efficacy of osmolytes and vice versa; and emphasizes on understanding of internal architecture of the cellular environment with respect to molecular and macromolecular crowding.
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Affiliation(s)
- Moin Ishrat
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Faizan Ahmad
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India
| | - Asimul Islam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi 110025, India.
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122
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Ruzza P, Vitale RM, Hussain R, Montini A, Honisch C, Pozzebon A, Hughes CS, Biondi B, Amodeo P, Sechi G, Siligardi G. Chaperone-like effect of ceftriaxone on HEWL aggregation: A spectroscopic and computational study. Biochim Biophys Acta Gen Subj 2018. [PMID: 29524538 DOI: 10.1016/j.bbagen.2018.02.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
BACKGROUND Lysozyme is a widely distributed enzyme present in a variety of tissue and body fluids. Human and hen egg white lysozyme are used as validated model to study protein folding and stability and to understand protein misfolding and aggregation. We recently found that ceftriaxone, a β-lactam antibiotic able to overcome the blood-brain barrier, successfully eliminated the cellular toxic effects of misfolded proteins as Glial Fibrillary Acidic Protein (GFAP) and α-synuclein. To further understand the anti-amyloidogenic properties of ceftriaxone, we studied its activity towards lysozyme aggregation with the aim to investigate a possible chaperone-like activity of this molecule. METHODS Here we present the results obtained from fluorescence and synchrotron radiation circular dichroism spectroscopies and from molecular docking and molecular dynamics about the lysozyme-ceftriaxone interaction at neutral and acidic pH values. RESULTS We found that ceftriaxone exhibits comparable affinity constants to lysozyme in both experimental pH conditions and that its addition enhanced lysozyme stability reducing its aggregation propensity in acidic conditions. Computational methods allowed the identification of the putative binding site of ceftriaxone, thus rationalizing the spectroscopic results. CONCLUSIONS Spectroscopy data and molecular dynamics indicated a protective effect of ceftriaxone on pathological aggregation phenomena suggesting a chaperone-like effect of this molecule on protein folding. General significance These results, in addition to our previous studies on α-synuclein and GFAP, confirm the property of ceftriaxone to inhibit the pathological protein aggregation of lysozyme also by a chaperone-like mechanism, extending the potential therapeutic application of this molecule to some forms of human hereditary systemic amyloidosis.
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Affiliation(s)
- Paolo Ruzza
- Institute of Biomolecular Chemistry of CNR, Padua Unit, Padua, Italy.
| | | | - Rohanah Hussain
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom
| | - Alessia Montini
- Institute of Biomolecular Chemistry of CNR, Padua Unit, Padua, Italy
| | - Claudia Honisch
- Institute of Biomolecular Chemistry of CNR, Padua Unit, Padua, Italy
| | - Alice Pozzebon
- Institute of Biomolecular Chemistry of CNR, Padua Unit, Padua, Italy
| | - Charlotte S Hughes
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom
| | - Barbara Biondi
- Institute of Biomolecular Chemistry of CNR, Padua Unit, Padua, Italy
| | - Pietro Amodeo
- Institute of Biomolecular Chemistry of CNR, Pozzuoli, Italy
| | - GianPietro Sechi
- Department of Clinical, Surgery and Experimental Medicine, Medical School, University of Sassari, Sassari, Italy
| | - Giuliano Siligardi
- Diamond Light Source Ltd, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom
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123
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Inhibition of insulin amyloid fibrillation by Morin hydrate. Int J Biol Macromol 2018; 108:225-239. [DOI: 10.1016/j.ijbiomac.2017.11.168] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/26/2017] [Accepted: 11/27/2017] [Indexed: 12/11/2022]
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124
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Siddiqi MK, Alam P, Chaturvedi SK, Khan MV, Nusrat S, Malik S, Khan RH. Capreomycin inhibits the initiation of amyloid fibrillation and suppresses amyloid induced cell toxicity. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2018; 1866:549-557. [PMID: 29496560 DOI: 10.1016/j.bbapap.2018.02.005] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/11/2018] [Accepted: 02/23/2018] [Indexed: 12/20/2022]
Abstract
Protein aggregation and amyloid fibrillation are responsible for several serious pathological conditions (like type II diabetes, Alzheimer's and Parkinson's diseases etc.) and protein drugs ineffectiveness. Therefore, a molecule that can inhibit the amyloid fibrillation and potentially clear amyloid fibrils is of great therapeutic value. In this manuscript, we investigated the antiamyloidogenic, fibril disaggregating, as well as cell protective effect of an anti-tuberculosis drug, Capreomycin (CN). Aggregation kinetics data, as monitored by ThT fluorescence, inferred that CN retards the insulin amyloid fibrillation by primarily targeting the fibril elongation step with little effect on lag time. Increasing the dose of CN boosted its inhibitory potency. Strikingly, CN arrested the growth of fibrils when added during the elongation phase, and disaggregated mature insulin fibrils. Our Circular Dichroism (CD) results showed that, although CN is not able to maintain the alpha helical structure of protein during fibrillation, reduces the formation of beta sheet rich structure. Furthermore, Dynamic Light Scattering (DLS) and Transmission Electronic Microscopy (TEM) analysis confirmed that CN treated samples exhibited different size distribution and morphology, respectively. In addition, molecular docking results revealed that CN interacts with insulin through hydrophobic interactions as well as hydrogen bonding, and the Hemolytic assay confirmed the non-hemolytic activity of CN on human RBCs. For future research, this study may assist in the rational designing of molecules against amyloid formation.
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Affiliation(s)
| | - Parvez Alam
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Sumit Kumar Chaturvedi
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Mohsin Vahid Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Saima Nusrat
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Sadia Malik
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India.
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Kim MS, Lee S, Yun S, Suh PG, Park J, Cui M, Choi S, Cha SS, Jin W. Inhibitory effect of tartrate against phosphate-induced DJ-1 aggregation. Int J Biol Macromol 2018; 107:1650-1658. [DOI: 10.1016/j.ijbiomac.2017.10.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/30/2017] [Accepted: 10/05/2017] [Indexed: 12/19/2022]
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Ow SY, Bekard I, Dunstan DE. Effect of natural biopolymers on amyloid fibril formation and morphology. Int J Biol Macromol 2018; 106:30-38. [DOI: 10.1016/j.ijbiomac.2017.07.171] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 07/20/2017] [Accepted: 07/29/2017] [Indexed: 10/19/2022]
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Shamsi TN, Athar T, Parveen R, Fatima S. A review on protein misfolding, aggregation and strategies to prevent related ailments. Int J Biol Macromol 2017; 105:993-1000. [PMID: 28743576 DOI: 10.1016/j.ijbiomac.2017.07.116] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 07/13/2017] [Accepted: 07/18/2017] [Indexed: 01/28/2023]
Abstract
This review aims to highlight the fundamental mechanism of protein misfolding leading to protein aggregation and associated diseases. It also aims to anticipate novel therapeutic strategies with which to prevent or treat these highly debilitating conditions linked to these pathologies. The failure of a protein to correctly fold de novo or to remain correctly folded can have profound consequences on a living system especially when the cellular quality control processes fail to eliminate the rogue proteins. The core cause of over 20 different human diseases which have now been designated as 'conformational diseases' including neurodegenerative diseases such as Alzheimer's disease (AD), Huntington's disease (HD) and Parkinson's disease (PD) etc. A comprehensive study on protein misfolding, aggregation, and the outcomes of the effects of cytotoxic aggregates will lead to understand the aggregation-mediated cell toxicity and serves as a foundation for future research in development of promising therapies and drugs. This review has also shed light on the mechanism of protein misfolding which leads to its aggregation and hence the neurodegeneration. From these considerations, one could also envisage the possibility that protein aggregation may be exploited by nature to perform specific physiological functions in differing biological contexts.
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Affiliation(s)
- Tooba Naz Shamsi
- Department of Biotechnology, Jamia Millia Islamia, New Delhi 110025, India.
| | - Teeba Athar
- Department of Biotechnology, Jamia Millia Islamia, New Delhi 110025, India.
| | - Romana Parveen
- Department of Biotechnology, Jamia Millia Islamia, New Delhi 110025, India.
| | - Sadaf Fatima
- Department of Biotechnology, Jamia Millia Islamia, New Delhi 110025, India.
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