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Banerjee S. Methylglyoxal-induced modification of myoglobin: An insight into glycation mediated protein aggregation. VITAMINS AND HORMONES 2024; 125:31-46. [PMID: 38997168 DOI: 10.1016/bs.vh.2024.06.002] [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: 07/14/2024]
Abstract
Post-translational modification of proteins by Maillard reaction, known as glycation, is thought to be the root cause of different complications, particularly in diabetes mellitus and age-related disorders. Methylglyoxal (MG), a reactive α-oxoaldehyde, increases in diabetic condition and reacts with the proteins to form advanced glycation end products (AGEs) following a Maillard-like reaction. In a time-dependent reaction study of MG with the heme protein myoglobin (Mb), MG was found to induce significant structural alterations of the heme protein, such as heme loss, changes in tryptophan fluorescence, and decrease of α-helicity with increased β-sheet content. These changes were found to occur gradually with increasing period of incubation. Incubation of Mb with MG induced the formation of several AGE adducts, including, carboxyethyllysine at Lys-16, carboxymethyllysine at Lys-87, carboxyethyllysine or pyrraline-carboxymethyllysine at Lys-133, carboxyethyllysine at Lys-42 and hydroimidazolone or argpyrimidine at Arg-31 and Arg-139. MG induced amyloid-like aggregation of Mb was detected at a longer period of incubation. MG-derived AGEs, therefore, appear to have an important role as the precursors of protein aggregation, which, in turn, may be associated with pathophysiological complications.
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Bangar NS, Ravindran S, Shaikh SA, Shah N, Tupe RS. Homeopathic Formulations of Syzygium jambolanum Alleviate Glycation-Mediated Structural and Functional Modifications of Albumin: Evaluation through Multi-Spectroscopic and Microscopic Approaches. HOMEOPATHY 2024; 113:98-111. [PMID: 37857331 DOI: 10.1055/s-0043-1771024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
BACKGROUND The growing interest in identifying the mode of action of traditional medicines has strengthened its research. Syzygium jambolanum (Syzyg) is commonly prescribed in homeopathy and is a rich source of phytochemicals. OBJECTIVE The present study aims to shed light on the anti-glycation molecular mechanism of Syzyg mother tincture (MT), 30c, and 200c on glycated human serum albumin (HSA) by multi-spectroscopic and microscopic approaches. METHODS The phytochemicals and antioxidant potential of the Syzyg formulations were estimated by the high-performance liquid chromatography and spectroscopic technique, respectively. Glycation was initiated by incubating HSA with methylglyoxal, three Syzyg formulations, and the known inhibitor aminoguanidine in separate tubes at 37°C for 48 hours. The formation of glycation adducts was assessed by spectrofluorometer and affinity chromatography. The structural modifications were analyzed through circular dichroism, Fourier transform infrared spectroscopy, turbidity, 8-anilinonapthalene-1-sulfonic acid fluorescence, and nuclear magnetic resonance. Further, the formation of the aggregates was examined by thioflavin T, native-polyacrylamide gel electrophoresis, and transmission electron microscopy. Additionally, the functional modifications of glycated HSA were determined by esterase-like activity and antioxidant capacity. The binding analysis of Syzyg formulations with glycated HSA was evaluated by surface plasmon resonance (SPR). RESULTS Syzyg formulations MT, 30c, and 200c contained gallic acid and ellagic acid as major phytochemicals, with concentrations of 16.02, 0.86, and 0.52 µg/mL, and 227.35, 1.35, and 0.84 µg/mL, respectively. Additionally, all three formulations had remarkable radical scavenging ability and could significantly inhibit glycation compared with aminoguanidine. Further, Syzyg formulations inhibited albumin's structural and functional modifications. SPR data showed that Syzyg formulations bind to glycated HSA with an equilibrium dissociation constant of 1.10 nM. CONCLUSION Syzyg formulations inhibited the glycation process while maintaining the structural and functional integrity of HSA.
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Affiliation(s)
- Nilima S Bangar
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Lavale, Pune, Maharashtra, India
| | - Selvan Ravindran
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Lavale, Pune, Maharashtra, India
| | - Shamim A Shaikh
- Rajiv Gandhi Institute of IT and Biotechnology, Bharati Vidyapeeth (Deemed to be University), Katraj, Pune, Maharashtra, India
| | - Nilesh Shah
- Department of Surgery and Homeopathic Therapeutics, Bharati Vidyapeeth (Deemed to be University), Homoeopathic Medical College, Katraj, Pune, Maharashtra, India
| | - Rashmi S Tupe
- Symbiosis School of Biological Sciences, Symbiosis International (Deemed University), Lavale, Pune, Maharashtra, India
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3
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Chaki S, Santra S, Dasgupta S. Fibrillation of Human Serum Albumin Differentially Affected by Asp-, Arg-, and Tyr-Capped Gold Nanoparticles. J Phys Chem B 2024; 128:3538-3553. [PMID: 38507578 DOI: 10.1021/acs.jpcb.3c06932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Fibrillation of proteins is associated with a number of debilitating diseases, including various neurodegenerative disorders. Prevention of the protein fibrillation process is therefore of immense importance. We investigated the effect of amino acid-capped AuNPs on the prevention of the fibrillation process of human serum albumin (HSA), a model protein. Amino acid-capped AuNPs of varying sizes and agglomeration extents were synthesized under physiological conditions. The AuNPs were characterized by their characteristic surface plasmon resonance (SPR), and their interactions with HSA were investigated through emission spectroscopy in addition to circular dichroism (CD) spectral analyses. Fluorescence lifetime imaging (FLIM) as well as transmission electron microscopy (TEM) were used to observe the fibrillar network. Thermodynamic and kinetic analyses from CD and fluorescence emission spectra provided insights into the fibrillation pathway adopted by HSA in the presence of capped AuNPs. Kinetics of the fibrillation pathway followed by ThT fluorescence emission confirmed the sigmoidal nature of the process. The highest cooperativity was observed in the case of Asp-AuNPs with HSA. This was in accordance with the ΔG value obtained from the CD spectral analyses, where Arg-AuNPs with HSA showed the highest positive ΔG value and Asp-AuNPs with HSA showed the most negative ΔG value. The study provides information about the potential use of conjugate AuNPs to monitor the fibrillation process in proteins.
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Affiliation(s)
- Sreshtha Chaki
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Sujan Santra
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Swagata Dasgupta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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Thakur MR, Tupe RS. Protective effect of colchicine on albumin glycation and cellular oxidative stress: Insights into diabetic cardiomyopathy. J Biochem Mol Toxicol 2024; 38:e23664. [PMID: 38372178 DOI: 10.1002/jbt.23664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/20/2023] [Accepted: 02/01/2024] [Indexed: 02/20/2024]
Abstract
The present work elucidates the role of colchicine (COL) on albumin glycation and cellular oxidative stress in diabetic cardiomyopathy (DCM). Human serum albumin (HSA) was glycated with methylglyoxal in the presence of COL (2.5, 3.75, and 5 µM), whereas positive and negative control samples were maintained separately. The effects of COL on HSA glycation, structural and functional modifications in glycated HSA were analyzed using different spectroscopical and fluorescence techniques. Increased fructosamine, carbonyl, and pentosidine formation in glycated HSA samples were inhibited in the presence of COL. Structural conformation of HSA and glycated HSA samples was examined by field emission scanning electron microscopy, circular dichroism, Fourier transform infrared, and proton nuclear magnetic resonance analyses, where COL maintained both secondary and tertiary structures of HSA against glycation. Functional marker assays included ABTS•+ radical scavenging and total antioxidant activities, advanced oxidative protein product formation, and turbidimetry, which showed preserved functional properties of glycated HSA in COL-containing samples. Afterward, rat cardiomyoblast (H9c2 cell line) was treated with glycated HSA-COL complex (400 μg/mL) for examining various cellular antioxidants (nitric oxide, catalase, superoxide dismutase, and glutathione) and detoxification enzymes (aldose reductase, glyoxalase I, and II) levels. All three concentrations of COL exhibited effective anti-glycation properties, enhanced cellular antioxidant levels, and detoxification enzyme activities. The report comprehensively analyzes the potential anti-glycation and properties of COL during its initial assessment.
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Affiliation(s)
- Muskan Rajkumar Thakur
- Symbiosis School of Biological Sciences (SSBS), Symbiosis International (Deemed University) (SIU), Pune, Maharashtra, India
| | - Rashmi Santosh Tupe
- Symbiosis School of Biological Sciences (SSBS), Symbiosis International (Deemed University) (SIU), Pune, Maharashtra, India
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5
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Gaikwad DD, Bangar NS, Apte MM, Gvalani A, Tupe RS. Mineralocorticoid interaction with glycated albumin downregulates NRF - 2 signaling pathway in renal cells: Insights into diabetic nephropathy. Int J Biol Macromol 2022; 220:837-851. [PMID: 35987363 DOI: 10.1016/j.ijbiomac.2022.08.095] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 06/30/2022] [Accepted: 08/13/2022] [Indexed: 12/20/2022]
Abstract
In diabetic nephropathy, hyperglycemia elevates albumin glycation and also results in increased plasma aldosterone. Both glycation and aldosterone are reported to cause oxidative stress by downregulating the NRF-2 pathway and thereby resulting in reduced levels of antioxidants and glycation detoxifying enzymes. We hypothesize that an interaction between aldosterone and glycated albumin may be responsible for amplified oxidative stress and concomitant renal cell damage. Hence, human serum albumin was glycated by methylglyoxal (MGO) in presence of aldosterone. Different structural modifications of albumin, functional modifications and aldosterone binding were analyzed. HEK-293 T cells were treated with aldosterone+glycated albumin along with inhibitors of receptors for mineralocorticoid (MR) and advanced glycation endproducts (RAGE). Cellular MGO content, antioxidant markers (nitric oxide, glutathione, catalase, superoxide dismutase, glutathione peroxidase), detoxification enzymes (aldose reductase, Glyoxalase I, II), their expression along with NRF-2 and Keap-1 were measured. Aldosterone binds to albumin with high affinity which is static and spontaneous. Cell treatment by aldosterone+glycated albumin increased intracellular MGO, MR and RAGE expression; hampered antioxidant, detoxification enzyme activities and reduced NRF-2, Keap-1 expression. Thus, the glycated albumin-aldosterone interaction and its adverse effect on renal cells were confirmed. The results will help in developing better pharmacotherapeutic strategies for diabetic nephropathy.
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Affiliation(s)
- Deepesh D Gaikwad
- Symbiosis School of Biological Sciences (SSBS), Symbiosis International (Deemed University) (SIU), Lavale, Pune, Maharashtra State, India
| | - Nilima S Bangar
- Symbiosis School of Biological Sciences (SSBS), Symbiosis International (Deemed University) (SIU), Lavale, Pune, Maharashtra State, India
| | - Mayura M Apte
- Symbiosis School of Biological Sciences (SSBS), Symbiosis International (Deemed University) (SIU), Lavale, Pune, Maharashtra State, India
| | - Armaan Gvalani
- Symbiosis School of Biological Sciences (SSBS), Symbiosis International (Deemed University) (SIU), Lavale, Pune, Maharashtra State, India
| | - Rashmi S Tupe
- Symbiosis School of Biological Sciences (SSBS), Symbiosis International (Deemed University) (SIU), Lavale, Pune, Maharashtra State, India.
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6
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Using Sugar-Derived Nanoparticles to Mitigate Amyloid Fibril Formation of Lysozyme. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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7
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Banerjee S. Biophysical and mass spectrometry based characterization of methylglyoxal-modified myoglobin: Role of advanced glycation end products in inducing protein structural alterations. Int J Biol Macromol 2021; 193:2165-2172. [PMID: 34774865 DOI: 10.1016/j.ijbiomac.2021.11.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/08/2021] [Accepted: 11/05/2021] [Indexed: 11/25/2022]
Abstract
Methylglyoxal (MG) is a highly reactive α-dicarbonyl compound which reacts with proteins to form advanced glycation end products (AGEs). MG-induced AGE (MAGE) formation is particularly significant in diabetic condition. In the current study, we have undertaken a time-dependant characterization of MG-modified myoglobin following incubation of the heme protein with the α-dicarbonyl compound for different time periods. Interestingly, mass spectrometric studies indicated modifications at two specific lysine residues, Lys-87 and Lys-133. The AGE adducts identified at Lys-87 were carboxymethyllysine and carboxyethyllysine, while those detected at Lys-133 included pyrraline-carboxymethyllysine and carboxyethyllysine, respectively. Far-UV CD studies revealed a decrease in the native α-helical content of the heme protein gradually with increasing time of MG incubation. In addition, MG modification was found to induce changes in tertiary structure as well as surface hydrophobicity of the heme protein. MG-derived AGE adducts thus appear to alter the structure of Mb considerably. Considering the increased level of MG in diabetic condition, the current study appears physiologically relevant in terms of understanding AGE-mediated protein modification and subsequent structural changes.
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Affiliation(s)
- Sauradipta Banerjee
- Department of Biophysics, Molecular Biology & Bioinformatics, University of Calcutta, 92, Acharyya Prafulla Chandra Road, Kolkata 700009, India.
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8
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Luo H, Li B, Liu J, Liu Y, Xiao Q, Huang S. Investigation on conformational variation and fibrillation of human serum albumin affected by molybdenum disulfide quantum dots. Int J Biol Macromol 2021; 190:999-1006. [PMID: 34487782 DOI: 10.1016/j.ijbiomac.2021.08.215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 11/25/2022]
Abstract
In this work, binding interaction between molybdenum disulfide quantum dots (MoS2 QDs) and human serum albumin (HSA) was researched deeply to dissect the conformational variation and fibrillation of HSA affected by MoS2 QDs. The results revealed that MoS2 QDs bound strongly with HSA with molar ratio of 1:1 under the joint actions of hydrogen bond and van der Waals force, leading to the static fluorescence quenching of HSA. MoS2 QDs caused the secondary structure transition of HSA from α-helix stepwise to β-turn, β-sheet, and random coil gradually. MoS2 QDs reduced both the molar enthalpy change and the melting temperature of HSA, reducing the thermal stability of HSA significantly. It is worth noting that MoS2 QDs inhibited the fibrillation process of HSA according to the reduced hydrophobic environment and the disturbance of disulfide bonds in HSA network structure. These results reveal the precise binding mechanism of MoS2 QDs with HSA at molecular level, providing indispensable information for the potential application of MoS2 QDs in biological fields.
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Affiliation(s)
- Huajian Luo
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, PR China
| | - Bo Li
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, PR China
| | - Jiajia Liu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, PR China
| | - Yi Liu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, PR China
| | - Qi Xiao
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, PR China.
| | - Shan Huang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, PR China.
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9
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Modification with N-benzylisatin restricts stress-induced aggregation of hen egg white lysozyme: Anti-amyloidogenic property of isatin derivative with possible clinical implications. Int J Biol Macromol 2021; 187:341-349. [PMID: 34310996 DOI: 10.1016/j.ijbiomac.2021.07.092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/29/2021] [Accepted: 07/14/2021] [Indexed: 11/21/2022]
Abstract
Hen egg white lysozyme (HEWL) is a structural homolog of human lysozyme and is widely used as a model protein to investigate protein aggregation. The effect of N-benzylisatin on stress-induced aggregation of HEWL has been investigated in the present study. Interaction of the isatin derivative with HEWL induced changes in protein secondary and tertiary structural conformation as evident from different biophysical and spectroscopic studies. In addition, modification with N-benzylisatin was found to increase the conformational stability of HEWL and afford considerable resistance to the protein to stress-induced aggregation as indicated from subsequent experimental studies, including thioflavin T fluorescence, microscopic imaging and dynamic light scattering analysis. Protein modification was analysed and confirmed by MALDI-TOF and ESI-MS studies. The results highlight possible clinical implications of isatin derivative in the treatment of protein misfolding and conformational disorders.
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10
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Banerjee S. Long-term incubation of myoglobin with glyoxal induces amyloid like aggregation of the heme protein: Implications of advanced glycation end products in protein conformational disorders. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Banerjee S. Effect of glyoxal and 1-methylisatin on stress-induced fibrillation of Hen Egg White Lysozyme: Insight into the anti-amyloidogenic property of the compounds with possible therapeutic implications. Int J Biol Macromol 2020; 165:1552-1561. [DOI: 10.1016/j.ijbiomac.2020.10.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/26/2020] [Accepted: 10/02/2020] [Indexed: 10/23/2022]
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12
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Shinde RA, Ghosh R, Prasanthan P, Kishore N. Unraveling thermodynamic and conformational correlations in action of osmolytes on hen egg white lysozyme. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113996] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Khalifa I, Sobhy R, Nawaz A, Xiaoou W, Li Z, Zou X. Cyanidin 3-rutinoside defibrillated bovine serum albumin under the glycation-promoting conditions: A study with multispectral, microstructural, and computational analysis. Int J Biol Macromol 2020; 162:1195-1203. [DOI: 10.1016/j.ijbiomac.2020.06.243] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/16/2020] [Accepted: 06/25/2020] [Indexed: 12/20/2022]
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14
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Bashir S, Shamsi A, Ahmad F, Hassan MI, Kamal MA, Islam A. Biophysical Elucidation of Fibrillation Inhibition by Sugar Osmolytes in α-Lactalbumin: Multispectroscopic and Molecular Docking Approaches. ACS OMEGA 2020; 5:26871-26882. [PMID: 33111013 PMCID: PMC7581248 DOI: 10.1021/acsomega.0c04062] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 09/25/2020] [Indexed: 05/02/2023]
Abstract
Protein aggregation is among the most challenging new frontiers in protein chemistry as well as in molecular medicine and has direct implications in protein misfolding. This study investigated the role of sugar molecules (glucose, fructose, sucrose, and the mixture of glucose and fructose) in protecting the structural integrity of α-lactalbumin (α-LA) against aggregation. The research focused here is the inhibitory capabilities of sugars against α-LA fibril formation investigated employing diverse multispectroscopic and microscopic techniques. The aggregation was induced in α-LA thermally with a change in concentration. UV-vis spectroscopy, ThT binding assay, Trp fluorescence, Rayleigh scattering, and turbidity assay depicted synchronized results. Further, transmission electron microscopy (TEM) complemented that a mixture of glucose and fructose was the best inhibitor of α-LA fibril formation. Inhibition of α-LA aggregation by sugar osmolytes is attributed to the formation of hydrogen bonds between these osmolytes, as evidenced by the molecular docking results. This hydrogen bonding is a key player that prevents aggregation in α-LA in the presence of sugar osmolytes. This study provides an insight into the ability of naturally occurring sugar osmolytes to inhibit fibril formation and can serve as a platform to treat protein misfolding and aggregation-oriented disorders.
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Affiliation(s)
- Sania Bashir
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Anas Shamsi
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Faizan Ahmad
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Md. Imtaiyaz Hassan
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
| | - Mohammad Azhar Kamal
- Department
of Biochemistry, College of Science, University
of Jeddah, Jeddah 21589, Saudi Arabia
- University
of Jeddah Centre for Scientific and Medical Research (UJ-CSMR), University
of Jeddah, Jeddah 21589, Saudi Arabia
| | - Asimul Islam
- Centre
for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi 110025, India
- Correspondence:
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Shamsi A, Ahmed A, Khan MS, Husain FM, Bano B. Rosmarinic acid restrains protein glycation and aggregation in human serum albumin: Multi spectroscopic and microscopic insight - Possible Therapeutics Targeting Diseases. Int J Biol Macromol 2020; 161:187-193. [PMID: 32526295 DOI: 10.1016/j.ijbiomac.2020.06.048] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/19/2020] [Accepted: 06/05/2020] [Indexed: 12/30/2022]
Abstract
Protein aggregation and glycation are directly associated with many pathological conditions including several neurodegenerative disorders. This study investigates the potential of naturally occurring plant product, Rosmarinic acid (RA), to inhibit the glycation and aggregation process. In this study, we report that varying concentrations of methylglyoxal (MG) induce advanced glycation end products (AGEs) and aggregates formation in HSA in vitro on day 6 and day 8, respectively. AGEs specific fluorescence confirmed the formation of AGEs in HSA in the presence of MG and further characterized the inhibitory potential of RA. It was found that the presence of RA prevented AGEs formation in vitro. Further, aggregates of HSA were characterized employing multi spectroscopic and microscopic techniques and RA was found to inhibit this process. This study proposes that RA could be a potential natural molecule to treat disorders where AGEs and aggregates of proteins play a pivotal role.
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Affiliation(s)
- Anas Shamsi
- Department of Biochemistry, Aligarh Muslim University, Aligarh, India
| | - Azaj Ahmed
- Department of Biochemistry, Aligarh Muslim University, Aligarh, India
| | - Mohd Shahnawaz Khan
- Department of Biochemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Fohad Mabood Husain
- Department of Food Science and Nutrition, Faculty of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Bilqees Bano
- Department of Biochemistry, Aligarh Muslim University, Aligarh, India.
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16
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Investigating the effect of sugar-terminated nanoparticles on amyloid fibrillogenesis of β-lactoglobulin. Int J Biol Macromol 2020; 165:291-307. [PMID: 32961178 DOI: 10.1016/j.ijbiomac.2020.09.104] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 08/19/2020] [Accepted: 09/14/2020] [Indexed: 11/22/2022]
Abstract
In vivo tissue deposition of fibrillar protein aggregates is the cause of several degenerative diseases. Evidence suggests that interfering with the pathology-associated amyloid fibrillogenesis by inhibitory molecules is envisaged as the primary therapeutic strategy. Amyloid fibril formation of proteins has been demonstrated to be influenced by nanoparticles/nanomaterials. As compared with their molecular form counterpart, this work examined the effect of sucrose-terminated nanoparticles on the in vitro amyloid fibrillogenesis and structural properties of β-lactoglobulin at pH 2.0 and 80 °C. ThT binding and electron microscopy results demonstrated that sucrose-terminated nanoparticles were able to suppress β-lactoglobulin fibrillogenesis in a concentration-dependent fashion. Importantly, sucrose-terminated nanoparticles showed better β-lactoglobulin fibril-inhibiting ability than sucrose molecules. ANS fluorescence and right-angle light scattering results showed reduced solvent exposure and decreased aggregation, respectively, in the β-lactoglobulin samples upon treatment with sucrose-terminated nanoparticles. Moreover, fluorescence quenching analyses revealed that the static quenching mechanism and formation of a non-fluorescent fluorophore-nanoparticle complex are involved in the nanoparticle-β-lactoglobulin interaction. We believe that the results from this study may suggest that the nanoparticle form of biocompatible sugar-related osmolytes may serve as effective inhibiting/suppressing agents toward protein fibrillogenesis.
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17
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Phytosterols disaggregate bovine serum albumin under the glycation conditions through interacting with its glycation sites and altering its secondary structure elements. Bioorg Chem 2020; 101:104047. [DOI: 10.1016/j.bioorg.2020.104047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 06/18/2020] [Accepted: 06/23/2020] [Indexed: 11/21/2022]
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18
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Xie Q, Hou D, Chang J, Xu Z, Zeng Q, Wang Z, Chen Y. Beyond temperature: controlling collagen fibrillogenesis under physiological conditions via interaction with cucurbit[7]uril. Chem Commun (Camb) 2020; 56:4946-4949. [PMID: 32239047 DOI: 10.1039/d0cc01444c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Under physiological ionic strength and pH, temperature has long been appreciated as the only stimulus that can be applied to induce in vitro self-assembly of tropocollagen. Here, we report a second, mechanistically new control strategy that uses non-covalent and selective binding of cucurbit[7]uril, a macrocyclic cavitand, with midchain aromatic residues on the tropocollagen surface. This strategy directly demonstrates the decisive role hydrophobic interactions play in collagen fibrillogenesis. It also points the way to the temporally-controllable formation of collagen fibrils in vivo that is highly desirable, yet challenging, in some biomedical scenarios.
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Affiliation(s)
- Qiuping Xie
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
| | - Delong Hou
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
| | - Jinming Chang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637009, P. R. China
| | - Zhou Xu
- School of Life Science and Food Engineering, Yibin University, Yibin 644007, P. R. China
| | - Qi Zeng
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
| | - Zhonghui Wang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
| | - Yi Chen
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China and Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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Maciążek-Jurczyk M, Janas K, Pożycka J, Szkudlarek A, Rogóż W, Owczarzy A, Kulig K. Human Serum Albumin Aggregation/Fibrillation and its Abilities to Drugs Binding. Molecules 2020; 25:molecules25030618. [PMID: 32023900 PMCID: PMC7038104 DOI: 10.3390/molecules25030618] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 01/23/2020] [Accepted: 01/29/2020] [Indexed: 02/07/2023] Open
Abstract
Human serum albumin (HSA) is a protein that transports neutral and acid ligands in the organism. Depending on the environment's pH conditions, HSA can take one of the five isomeric forms that change its conformation. HSA can form aggregates resembling those in vitro formed from amyloid at physiological pH (neutral and acidic). Not surprisingly, the main goal of the research was aggregation/fibrillation of HSA, the study of the physicochemical properties of formed amyloid fibrils using thioflavin T (ThT) and the analysis of ligand binding to aggregated/fibrillated albumin in the presence of dansyl-l-glutamine (dGlu), dansyl-l-proline (dPro), phenylbutazone (Phb) and ketoprofen (Ket). Solutions of human serum albumin, both non-modified and modified, were examined with the use of fluorescence, absorption and circular dichroism (CD) spectroscopy. The experiments conducted allowed observation of changes in the structure of incubated HSA (HSAINC) in relation to nonmodified HSA (HSAFR). The formed aggregates/fibrillation differed in structure from HSA monomers and dimers. Based on CD spectroscopy, previously absent βstructural constructs have been registered. Whereas, using fluorescence spectroscopy, the association constants differing for fresh and incubated HSA solutions in the presence of dansyl-amino acids and markers for binding sites were calculated and allowed observation of the conformational changes in HSA molecule.
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Affiliation(s)
- Małgorzata Maciążek-Jurczyk
- Department of Physical Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland; (K.J.); (J.P.); (A.S.); (W.R.); (K.K.)
- Correspondence: ; Tel.: +48-32-364-1582
| | - Kamil Janas
- Department of Physical Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland; (K.J.); (J.P.); (A.S.); (W.R.); (K.K.)
| | - Jadwiga Pożycka
- Department of Physical Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland; (K.J.); (J.P.); (A.S.); (W.R.); (K.K.)
| | - Agnieszka Szkudlarek
- Department of Physical Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland; (K.J.); (J.P.); (A.S.); (W.R.); (K.K.)
| | - Wojciech Rogóż
- Department of Physical Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland; (K.J.); (J.P.); (A.S.); (W.R.); (K.K.)
| | - Aleksandra Owczarzy
- Independent Public Clinical Hospital No. 1 in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland;
| | - Karolina Kulig
- Department of Physical Pharmacy, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 40-055 Katowice, Poland; (K.J.); (J.P.); (A.S.); (W.R.); (K.K.)
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20
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Banerjee S. Methylglyoxal modification reduces the sensitivity of hen egg white lysozyme to stress-induced aggregation: Insight into the anti-amyloidogenic property of α-dicarbonyl compound. J Biomol Struct Dyn 2019; 38:5474-5487. [PMID: 31814530 DOI: 10.1080/07391102.2019.1702589] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The reactive α-oxoaldehyde, methylglyoxal reacts with different proteins to form Advanced Glycation End Products (AGEs) through Maillard reaction. Its level increases significantly in diabetic condition. Here, we have investigated the effect of different concentrations of methylglyoxal (200-400 µM) on the monomeric protein, hen egg white lysozyme (HEWL) following incubation for 3 weeks. Reaction of methylglyoxal with HEWL induced considerable changes in tertiary structure of the protein, but no significant alteration in secondary structure, as evident from different spectroscopic and biophysical studies. Interestingly, methylglyoxal modification was found to enhance the thermal stability of the protein and reduce its sensitivity to stress-induced aggregation. Finally, peptide mass fingerprinting revealed modification of arginine (Arg-45, Arg-14, Arg-68 or Arg-72) and lysine (Lys-116) residues of the protein to AGE adducts, namely, hydroimidazolone, tetrahydropyrimidine, and carboxyethyllysine. Methylglyoxal-derived AGE adducts (MAGE) appear to be responsible for the observed changes in protein. As demonstrated in the present study, the findings may highlight a possible therapeutic potential of the α-oxoaldehyde against protein misfolding and conformational disorder.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sauradipta Banerjee
- School of Chemical Sciences, Indian Association for the Cultivation of Sciences, Kolkata, India
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21
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Singla R, Abidi SMS, Dar AI, Acharya A. Inhibition of Glycation-Induced Aggregation of Human Serum Albumin by Organic-Inorganic Hybrid Nanocomposites of Iron Oxide-Functionalized Nanocellulose. ACS OMEGA 2019; 4:14805-14819. [PMID: 31552320 PMCID: PMC6751540 DOI: 10.1021/acsomega.9b01392] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 07/31/2019] [Indexed: 05/06/2023]
Abstract
Protein aggregation leads to the transformation of proteins from their soluble form to the insoluble amyloid fibrils and these aggregates get deposited in the specific body tissues, accounting for various diseases. To prevent such an aggregation, organic-inorganic hybrid nanocomposites of iron oxide nanoparticle (NP, ∼6.5-7.0 nm)-conjugated cellulose nanocrystals (CNCs) isolated from Syzygium cumini (SC) and Pinus roxburghii (PR) were chemically synthesized. Transmission electron microscopy (TEM) images of the nanocomposites suggested that the in situ-synthesized iron oxide NPs were bound to the CNC surface in a uniform and regular fashion. The ThT fluorescence assay together with 8-anilino-1-naphthalenesulfonic acid, Congo Red, and CD studies suggested that short fiber-based SC nanocomposites showed better inhibition as well as dissociation of human serum albumin aggregates. The TEM and fluorescence microscopy studies supported similar observations. Native polyacrylamide gel electrophoresis results documented dissociation of higher protein aggregates in the presence of the developed nanocomposite. Interestingly, the dissociated proteins retained their biological function by maintaining a high amount of α-helix content. The in vitro studies with HEK-293 cells suggested that the developed nanocomposite reduces aggregation-induced cytotoxicity by intracellular reactive oxygen species scavenging and maintaining the Ca2+ ion-channel. These results indicated that the hybrid organic-inorganic nanocomposite, with simultaneous sites for hydrophobic and hydrophilic interactions, tends to provide a larger surface area for nanocomposite-protein interactions, which ultimately disfavors the nucleation step for fibrillation for protein aggregates.
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Affiliation(s)
- Rubbel Singla
- Biotechnology
Division and Academy of Scientific & Innovative Research (AcSIR), CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176061, India
| | - Syed M. S. Abidi
- Biotechnology
Division and Academy of Scientific & Innovative Research (AcSIR), CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176061, India
| | - Aqib Iqbal Dar
- Biotechnology
Division and Academy of Scientific & Innovative Research (AcSIR), CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176061, India
| | - Amitabha Acharya
- Biotechnology
Division and Academy of Scientific & Innovative Research (AcSIR), CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176061, India
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22
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Siddiqi MK, Alam P, Malik S, Majid N, Chaturvedi SK, Rajan S, Ajmal MR, Khan MV, Uversky VN, Khan RH. Stabilizing proteins to prevent conformational changes required for amyloid fibril formation. J Cell Biochem 2019; 120:2642-2656. [PMID: 30242891 DOI: 10.1002/jcb.27576] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Accepted: 08/07/2018] [Indexed: 01/24/2023]
Abstract
Amyloid fibrillation is associated with several human maladies, such as Alzheimer's, Parkinson's, Huntington's diseases, prions, amyotrophic lateral sclerosis, and type 2 diabetes diseases. Gaining insights into the mechanism of amyloid fibril formation and exploring novel approaches to fibrillation inhibition are crucial for preventing amyloid diseases. Here, we hypothesized that ligands capable of stabilizing the native state of query proteins might prevent protein unfolding, which, in turn, may reduce the propensity of proteins to form amyloid fibrils. We demonstrated the efficient inhibition of amyloid formation of the human serum albumin (HSA) (up to 85%) and human insulin (up to 80%) by a nonsteroidal anti-inflammatory drug, ibuprofen (IBFN). IBFN significantly increases the conformational stability of both HSA and insulin, as confirmed by differential scanning calorimetry (DSC). Moreover, increasing concentration of IBFN boosts its amyloid inhibitory propensity in a linear fashion by influencing the nucleation phase as assayed by thioflavin T fluorescence, transmission electron microscopy, and dynamic light scattering. Furthermore, circular dichroism analysis supported the DSC results, showing that IBFN binds to the native state of proteins and almost completely prevents their tendency to lose secondary and tertiary structures. Cell toxicity assay confirms that species formed in the presence of IBFN are less toxic to neuronal cells (SH-SY5Y). These results demonstrate the feasibility of using a small molecule to stabilize the native state of proteins, thereby preventing the amyloidogenic conformational changes, which appear to be the common link in several human amyloid diseases.
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Affiliation(s)
| | - Parvez Alam
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India.,Kususma School of Biological Sciences, Indian Institute of Technology, New Delhi, India
| | - Sadia Malik
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Nabeela Majid
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | | | | | - Mohd Rehan Ajmal
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Mohsin Vahid Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
| | - Vladimir N Uversky
- Protein Research Group, Institute for Biological Instrumentation of the Russian Academy of Sciences, Moscow, Russia.,Department of Biological Sciences, Faculty of Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Molecular Medicine, USF Health Byrd Alzheimer's Research Institute, Morsani College of Medicine, University of South Florida, Tampa, Florida
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, India
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23
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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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24
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Helbing C, Deckert-Gaudig T, Firkowska-Boden I, Wei G, Deckert V, Jandt KD. Protein Handshake on the Nanoscale: How Albumin and Hemoglobin Self-Assemble into Nanohybrid Fibers. ACS NANO 2018; 12:1211-1219. [PMID: 29298383 DOI: 10.1021/acsnano.7b07196] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Creating and establishing proof of hybrid protein nanofibers (hPNFs), i.e., PNFs that contain more than one protein, is a currently unsolved challenge in bioinspired materials science. Such hPNFs could serve as universal building blocks for the bottom-up preparation of functional materials with bespoke properties. Here, inspired by the protein assemblies occurring in nature, we introduce hPNFs created via a facile self-assembly route and composed of human serum albumin (HSA) and human hemoglobin (HGB) proteins. Our circular dichroism results shed light on the mechanism of the proteins' self-assembly into hybrid nanofibers, which is driven by electrostatic/hydrophobic interactions between similar amino acid sequences (protein handshake) exposed to ethanol-triggered protein denaturation. Based on nanoscale characterization with tip-enhanced Raman spectroscopy (TERS) and immunogold labeling, our results demonstrate the existence and heterogenic nature of the hPNFs and reveal the high HSA/HGB composition ratio, which is attributed to the fast self-assembling kinetics of HSA. The self-assembled hPNFs with a high aspect ratio of over 100 can potentially serve as biocompatible units to create larger bioactive structures, devices, and sensors.
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Affiliation(s)
- Christian Helbing
- Chair of Materials Science (CMS), Otto Schott Institute of Materials Research, Faculty of Physics and Astronomy, Friedrich Schiller University Jena , Löbdergraben 32, 07743 Jena, Germany
| | - Tanja Deckert-Gaudig
- Leibnitz Institute of Photonic Technology IPHT , Albert-Einstein-Strasse 9, 07745 Jena, Germany
| | - Izabela Firkowska-Boden
- Chair of Materials Science (CMS), Otto Schott Institute of Materials Research, Faculty of Physics and Astronomy, Friedrich Schiller University Jena , Löbdergraben 32, 07743 Jena, Germany
| | - Gang Wei
- Faculty of Production Engineering, University of Bremen , Am Fallturm 1, 28359 Bremen, Germany
| | - Volker Deckert
- Leibnitz Institute of Photonic Technology IPHT , Albert-Einstein-Strasse 9, 07745 Jena, Germany
- Institute for Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena , Helmholtzweg 4, 07743 Jena, Germany
| | - Klaus D Jandt
- Chair of Materials Science (CMS), Otto Schott Institute of Materials Research, Faculty of Physics and Astronomy, Friedrich Schiller University Jena , Löbdergraben 32, 07743 Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena , Humboldtstraße 10, 07743 Jena, Germany
- Jena School for Microbial Communication (JSMC), Friedrich Schiller University , 07743 Jena, Germany
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25
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Konar S, Sen S, Pathak A. Morphological Effects of CuO Nanostructures on Fibrillation of Human Serum Albumin. J Phys Chem B 2017; 121:11437-11448. [PMID: 29202580 DOI: 10.1021/acs.jpcb.7b08432] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The influence of different morphologies of nanostructures on amyloid fibrillation has been investigated by monitoring the fibrillation of human serum albumin (HSA) in the presence of rod-, sphere-, flower-, and star-shaped copper oxide (CuO) nanostructures. The different morphologies of CuO have been synthesized from an aqueous solution-based precipitation method using various organic acids, viz., acetic acid, citric acid, and tartaric acid. The fibrillation process of HSA has been examined using various biophysical techniques, e.g., Thioflavin T fluorescence, Congo red binding studies through UV spectroscopy, circular dichroism spectroscopy, and fluorescence microscopy. The monolayer protein coverage on the CuO nanostructures has been established through DLS studies, and the well-fitted Langmuir isotherm model has been used to interpret the differential adsorption behavior of HSA molecules on the CuO nanostructures. The nanostar-shaped CuO, by virtue of their higher specific surface area (94.45 m2 g-1), presence of high indexed facets {211} and high positive surface charge potential (+16.2 mV at pH 7.0) was found to show the highest adsorption of the HSA monomers and thus was more competent to inhibit the formation of HSA fibrils compared to the other nanostructures of CuO.
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Affiliation(s)
- Suraj Konar
- Department of Chemistry, Indian Institute of Technology Kharagpur , Kharagpur 721302, India
| | - Shubhatam Sen
- Advanced Technology Development Centre, Indian Institute of Technology Kharagpur , Kharagpur 721302, India
| | - Amita Pathak
- Department of Chemistry, Indian Institute of Technology Kharagpur , Kharagpur 721302, India
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26
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Sen S, Chakraborty M, Goley S, Dasgupta S, DasGupta S. Fibrillar disruption by AC electric field induced oscillation: A case study with human serum albumin. Biophys Chem 2017; 226:23-33. [DOI: 10.1016/j.bpc.2017.04.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 04/07/2017] [Accepted: 04/12/2017] [Indexed: 11/25/2022]
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27
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Sekar G, Florance I, Sivakumar A, Mukherjee A, Chandrasekaran N. Role of PAMAM-OH dendrimers against the fibrillation pathway of biomolecules. Int J Biol Macromol 2016; 93:1007-1018. [PMID: 27651276 DOI: 10.1016/j.ijbiomac.2016.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 08/31/2016] [Accepted: 09/01/2016] [Indexed: 12/20/2022]
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28
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Banerjee S, Chakraborti AS. Glyoxal administration induces formation of high molecular weight aggregates of hemoglobin exhibiting amyloidal nature in experimental rats: An in vivo study. Int J Biol Macromol 2016; 93:805-813. [DOI: 10.1016/j.ijbiomac.2016.09.061] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Accepted: 09/16/2016] [Indexed: 12/24/2022]
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29
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Sekar G, Wilson S, Sivakumar A, Mukherjee A, Chandrasekaran N. Elucidating the role of surfactant dispersed CNTs towards HSA fibrillation in vitro — A multiple spectroscopic approach. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.06.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Sekar G, Sivakumar A, Mukherjee A, Chandrasekaran N. Prion like behavior of HSA-hydroxylated MWCNT interface. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2016; 161:411-421. [PMID: 27314539 DOI: 10.1016/j.jphotobiol.2016.06.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 06/05/2016] [Indexed: 06/06/2023]
Abstract
Carbon nanotubes (CNTs) with unique and outstanding properties were expected to revolutionize various aspects of the biomedical sector. Interaction studies of proteins with functionalized CNTs would shed light on their toxicological aspects upon entering the human body. Hyperchromicity of the UV-Visible spectra and declining fluorescence potential of HSA on interaction with CNTs suggested ground state complex to exist between them. Synchronous and 3D spectral features of CNT-HSA system proposed their possible binding site to occur nearby Trp and Tyr residues. FTIR and FT-Raman spectra showed a shift in the amide band region that proportionate the possible alteration to occur in the alpha-helical structures. CD far and near spectra showed loss of alpha-helical structures and shift in the Trp position of the polypeptide backbone. CNT's UV and FTIR band showed shift on interaction with HSA, which conveys the possible aggregation of CNTs in the presence of protein. The promoting role of CNTs against HSA fibril formation has been confirmed by spectroscopic and microscopic evaluations. Secondary conformational changes, besides the existence of increased beta-sheet structures of HSA amyloid fibrils, remain similar to the amyloid behavior of Prion protein. Hence, HSA fibril-CNT interface predominates the possible mechanism for several amyloid-related disorders concerning their toxic accumulations in the body.
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Affiliation(s)
- Gajalakshmi Sekar
- Centre for Nanobiotechnology, VIT University, Vellore, 632014, Tamil Nadu, India
| | - A Sivakumar
- School of Advanced Sciences, VIT University, Vellore, 632014, Tamil Nadu, India
| | - Amitava Mukherjee
- Centre for Nanobiotechnology, VIT University, Vellore, 632014, Tamil Nadu, India
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31
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Banerjee S, Maity S, Chakraborti AS. Methylglyoxal-induced modification causes aggregation of myoglobin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 155:1-10. [PMID: 26554310 DOI: 10.1016/j.saa.2015.10.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 09/10/2015] [Accepted: 10/22/2015] [Indexed: 06/05/2023]
Abstract
Post-translational modification of proteins by Maillard reaction, known as glycation, is thought to be the root cause of different complications, particularly in diabetes mellitus and age-related disorders. Methylglyoxal (MG), a reactive α-oxoaldehyde, increases in diabetic condition and reacts with proteins to form advanced glycation end products (AGEs) following Maillard-like reaction. We have investigated the in vitro effect of MG (200μM) on the monomeric heme protein myoglobin (Mb) (100μM) in a time-dependent manner (7 to 18days incubation at 25°C). MG induces significant structural alterations of the heme protein, including heme loss, changes in tryptophan fluorescence, decrease of α-helicity with increased β-sheet content etc. These changes occur gradually with increased period of incubation. Incubation of Mb with MG for 7days results in formation of the AGE adducts: carboxyethyllysine at Lys-16, carboxymethyllysine at Lys-87 and carboxyethyllysine or pyrraline-carboxymethyllysine at Lys-133. On increasing the period of incubation up to 14days, additional AGEs namely, carboxyethyllysine at Lys-42 and hydroimidazolone or argpyrimidine at Arg-31 and Arg-139 have been detected. MG also induces aggregation of Mb, which is clearly evident with longer period of incubation (18days), and appears to have amyloid nature. MG-derived AGEs may thus have an important role as the precursors of protein aggregation, which, in turn, may be associated with physiological complications.
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Affiliation(s)
- Sauradipta Banerjee
- Department of Biophysics, Molecular Biology & Bioinformatics, University of Calcutta, 92, Acharyya Prafulla Chandra Road, Kolkata 700009, India
| | - Subhajit Maity
- Department of Biophysics, Molecular Biology & Bioinformatics, University of Calcutta, 92, Acharyya Prafulla Chandra Road, Kolkata 700009, India
| | - Abhay Sankar Chakraborti
- Department of Biophysics, Molecular Biology & Bioinformatics, University of Calcutta, 92, Acharyya Prafulla Chandra Road, Kolkata 700009, India.
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32
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Sen S, Konar S, Das B, Pathak A, Dhara S, Dasgupta S, DasGupta S. Inhibition of fibrillation of human serum albumin through interaction with chitosan-based biocompatible silver nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra05129d] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Electrostatic interaction of chitosan-based silver nanoparticles with human serum albumin leads to inhibition of fibrillogenesis.
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Affiliation(s)
- Shubhatam Sen
- Advanced Technology Development Centre
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Suraj Konar
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Bodhisatwa Das
- School of Medical Science & Technology
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Amita Pathak
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Santanu Dhara
- School of Medical Science & Technology
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Swagata Dasgupta
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
| | - Sunando DasGupta
- Department of Chemical Engineering
- Indian Institute of Technology Kharagpur
- Kharagpur 721302
- India
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33
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Sen S, Konar S, Pathak A, Dasgupta S, DasGupta S. Effect of Functionalized Magnetic MnFe2O4 Nanoparticles on Fibrillation of Human Serum Albumin. J Phys Chem B 2014; 118:11667-76. [DOI: 10.1021/jp507902y] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shubhatam Sen
- Advanced Technology Development Centre, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Suraj Konar
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Amita Pathak
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Swagata Dasgupta
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Sunando DasGupta
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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