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Choudhary S, Kumawat G, Khandelwal M, Khangarot RK, Saharan V, Nigam S, Harish. Phyco-synthesis of silver nanoparticles by environmentally safe approach and their applications. Sci Rep 2024; 14:9568. [PMID: 38671168 PMCID: PMC11053078 DOI: 10.1038/s41598-024-60195-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 03/07/2024] [Indexed: 04/28/2024] Open
Abstract
In recent years, there has been an increasing interest in the green synthesis of metallic nanoparticles, mostly because of the evident limitations associated with chemical and physical methods. Green synthesis, commonly referred to as "biogenic synthesis," is seen as an alternative approach to produce AgNPs (silver nanoparticles). The current work focuses on the use of Asterarcys sp. (microalga) for biological reduction of AgNO3 to produce AgNPs. The optimal parameters for the reduction of AgNPs were determined as molarity of 3 mM for AgNO3 and an incubation duration of 24 h at pH 9, using a 20:80 ratio of algal extract to AgNO3. The biosynthesized Ast-AgNPs were characterised using ultraviolet-visible spectroscopy (UV-Vis), zeta potential, scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), and high-resolution transmission electron microscopy (HR-TEM) with selected area electron diffraction (SAED) patterns. The nanoparticles exhibited their highest absorption in the UV-visible spectra at 425 nm. The X-ray diffraction (XRD) investigation indicated the presence of characteristic peaks at certain angles: 38.30° (1 1 1), 44.40° (2 0 0), 64.64° (2 2 0), and 77.59° (3 1 1) according to the JCPDS file No. 04-0783. Based on SEM and TEM, the Ast-AgNPs had an average size of 35 nm and 52 nm, respectively. The zeta potential was determined to be - 20.8 mV, indicating their stability. The highest antibacterial effectiveness is shown against Staphylococcus aureus, with a zone of inhibition of 25.66 ± 1.52 mm at 250 μL/mL conc. of Ast-AgNPs. Likewise, Ast-AgNPs significantly suppressed the growth of Fusarium sp. and Curvularia sp. by 78.22% and 85.05%, respectively, at 150 μL/mL conc. of Ast-AgNPs. In addition, the Ast-AgNPs exhibited significant photocatalytic activity in degrading methylene blue (MB), achieving an 88.59% degradation in 120 min, revealing multiple downstream applications of Ast-AgNPs.
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Affiliation(s)
- Sunita Choudhary
- Department of Botany, Mohanlal Sukhadia University, Udaipur, 313001, India
| | - Geetanjali Kumawat
- Department of Botany, Mohanlal Sukhadia University, Udaipur, 313001, India
| | - Manisha Khandelwal
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, 313001, India
| | | | - Vinod Saharan
- Department of Molecular Biology and Biotechnology, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur, 313001, Rajasthan, India
| | - Subhasha Nigam
- Amity Institute of Biotechnology, Amity University, Noida, 201313, Uttar Pradesh, India
| | - Harish
- Department of Botany, Mohanlal Sukhadia University, Udaipur, 313001, India.
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Asil SM, Narayan M. Molecular interactions between gelatin-derived carbon quantum dots and Apo-myoglobin: Implications for carbon nanomaterial frameworks. Int J Biol Macromol 2024; 264:130416. [PMID: 38428776 PMCID: PMC11290343 DOI: 10.1016/j.ijbiomac.2024.130416] [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: 08/01/2023] [Revised: 12/20/2023] [Accepted: 02/22/2024] [Indexed: 03/03/2024]
Abstract
Carbon nanomaterials (CNMs), including carbon quantum dots (CQDs), have found widespread use in biomedical research due to their low toxicity, chemical tunability, and tailored applications. Yet, there exists a gap in our understanding of the molecular interactions between biomacromolecules and these novel carbon-centered platforms. Using gelatin-derived CQDs as a model CNM, we have examined the impact of this exemplar nanomaterial on apo-myoglobin (apo-Mb), an oxygen-storage protein. Intrinsic fluorescence measurements revealed that the CQDs induced conformational changes in the tertiary structure of native, partially unfolded, and unfolded states of apo-Mb. Titration with CQDs also resulted in significant changes in the secondary structural elements in both native (holo) and apo-Mb, as evidenced by the circular dichroism (CD) analyses. These changes suggested a transition from isolated helices to coiled-coils during the loss of the helical structure of the apo-protein. Infra-red spectroscopic data further underscored the interactions between the CQDs and the amide backbone of apo-myoglobin. Importantly, the CQDs-driven structural perturbations resulted in compromised heme binding to apo-myoglobin and, therefore, potentially can attenuate oxygen storage and diffusion. However, a cytotoxicity assay demonstrated the continued viability of neuroblastoma cells exposed to these carbon nanomaterials. These results, for the first time, provide a molecular roadmap of the interplay between carbon-based nanomaterial frameworks and biomacromolecules.
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Affiliation(s)
- Shima Masoudi Asil
- The Environmental Science & Engineering Program, The University of Texas at El Paso, El Paso, TX 79968, USA
| | - Mahesh Narayan
- The Department of Chemistry & Biochemistry, The University of Texas at El Paso, El Paso, TX 79968, USA.
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Kaur R, Narang SS, Singh P, Goyal B. Structural and molecular insights into tacrine-benzofuran hybrid induced inhibition of amyloid-β peptide aggregation and BACE1 activity. J Biomol Struct Dyn 2023; 41:13211-13227. [PMID: 37013977 DOI: 10.1080/07391102.2023.2191722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 01/16/2023] [Indexed: 04/05/2023]
Abstract
Amyloid-β (Aβ) aggregation and β-amyloid precursor protein cleaving enzyme 1 (BACE1) are the potential therapeutic drug targets for Alzheimer's disease (AD). A recent study highlighted that tacrine-benzofuran hybrid C1 displayed anti-aggregation activity against Aβ42 peptide and inhibit BACE1 activity. However, the inhibition mechanism of C1 against Aβ42 aggregation and BACE1 activity remains unclear. Thus, molecular dynamics (MD) simulations of Aβ42 monomer and BACE1 with and without C1 were performed to inspect the inhibitory mechanism of C1 against Aβ42 aggregation and BACE1 activity. In addition, a ligand-based virtual screening followed by MD simulations was employed to explore potent new small-molecule dual inhibitors of Aβ42 aggregation and BACE1 activity. MD simulations highlighted that C1 promotes the non aggregating helical conformation in Aβ42 and destabilizes D23-K28 salt bridge that plays a vital role in the self-aggregation of Aβ42. C1 displays a favourable binding free energy (-50.7 ± 7.3 kcal/mol) with Aβ42 monomer and preferentially binds to the central hydrophobic core (CHC) residues. MD simulations highlighted that C1 strongly interacted with the BACE1 active site (Asp32 and Asp228) and active pockets. The scrutiny of interatomic distances among key residues of BACE1 highlighted the close flap (non-active) position in BACE1 on the incorporation of C1. The MD simulations explain the observed high inhibitory activity of C1 against Aβ aggregation and BACE1 in the in vitro studies. The ligand-based virtual screening followed by MD simulations identified CHEMBL2019027 (C2) as a promising dual inhibitor of Aβ42 aggregation and BACE1 activity.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Rajdeep Kaur
- Department of Chemistry, Faculty of Basic and Applied Sciences, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab, India
| | - Simranjeet Singh Narang
- Department of Chemistry, Faculty of Basic and Applied Sciences, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab, India
| | - Pritpal Singh
- Department of Chemistry, Faculty of Basic and Applied Sciences, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab, India
| | - Bhupesh Goyal
- School of Chemistry & Biochemistry, Thapar Institute of Engineering & Technology, Patiala, Punjab, India
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Aliakbari F, Attar F, Movahedi M, Falahati M. Human tau fibrillization and neurotoxicity in the presence of magnesium oxide nanoparticle fabricated through laser ablation method. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121372. [PMID: 35588606 DOI: 10.1016/j.saa.2022.121372] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/01/2022] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
In this study, the acceleratory effect of magnesium oxide nanoparticles (MgO NPs) on the amyloid fibrillization of human tau protein, a major protein involved in the onset of Alzheimer's disease (AD) was investigated. The MgO NPs were fabricated through laser ablation synthesis in solution (LASiS), well-characterized, and explored further for tau aggregation and relevant neurotoxicity by different assays. The results showed that the MgO NPs have a size of around 30 nm, a hydrodynamic radius of 57.09 nm, and a zeta potential of -18.06 mV. The data from ThT and ANS fluorescence-based assays along with circular dichroism (CD) spectroscopy clearly indicated that MgO NPs could significantly promote tau fibrillization, concentration-dependently. Considering the acceleratory effect of MgO NPs against tau fibrillization, cellular assays including cell viability, reactive oxygen species (ROS), and caspase-3 assays indicated that the neurotoxicity of tau amyloid fibrils formed with MgO NPs was higher than that of tau samples aged alone against N2a neuron-like cells. Therefore, it was concluded that the interaction of MgO NPs with tau can lead to acceleration of tau aggregation and underlying neurotoxicity. This study, then can provide useful information about the direct effect of MgO NPs against memory proteins and subsequent adverse effects.
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Affiliation(s)
- Fakhteh Aliakbari
- Department of Biochemistry, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Farnoosh Attar
- Department of Biology, Faculty of Food Industry & Agriculture, Standard Research Institute, Karaj, Iran.
| | - Monireh Movahedi
- Department of Biochemistry, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Mojtaba Falahati
- Department of Biomedical Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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Gholami A, Dehghan G, Rashtbari S, Jouyban A. Exploring the interaction of clonazepam and diazepam with tau protein: Multispectral and molecular docking studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Han T, Zhang L, Tong W, Zhao J, Wang W. Exploring the interaction of calycosin with cyclin D1 protein as a regulator of cell cycle progression in lung cancer cells. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Alali S, Riazi G, Ashrafi-Kooshk MR, Meknatkhah S, Ahmadian S, Hooshyari Ardakani M, Hosseinkhani B. Cannabidiol Inhibits Tau Aggregation In Vitro. Cells 2021; 10:cells10123521. [PMID: 34944028 PMCID: PMC8700709 DOI: 10.3390/cells10123521] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/03/2021] [Accepted: 12/09/2021] [Indexed: 12/26/2022] Open
Abstract
A hallmark of Alzheimer’s disease (AD) is the accumulation of tau protein in the brain. Compelling evidence indicates that the presence of tau aggregates causes irreversible neuronal destruction, eventually leading to synaptic loss. So far, the inhibition of tau aggregation has been recognized as one of the most effective therapeutic strategies. Cannabidiol (CBD), a major component found in Cannabis sativa L., has antioxidant activities as well as numerous neuroprotective features. Therefore, we hypothesize that CBD may serve as a potent substance to hamper tau aggregation in AD. In this study, we aim to investigate the CBD effect on the aggregation of recombinant human tau protein 1N/4R isoform using biochemical methods in vitro and in silico. Using Thioflavin T (ThT) assay, circular dichroism (CD), and atomic force microscopy (AFM), we demonstrated that CBD can suppress tau fibrils formation. Moreover, by quenching assay, docking, and job’s plot, we further demonstrated that one molecule of CBD interacts with one molecule of tau protein through a spontaneous binding. Experiments performed by quenching assay, docking, and Thioflavin T assay further established that the main forces are hydrogen Van der Waals and some non-negligible hydrophobic forces, affecting the lag phase of tau protein kinetics. Taken together, this study provides new insights about a natural substance, CBD, for tau therapy which may offer new hope for the treatment of AD.
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Affiliation(s)
- Soha Alali
- Laboratory of Neuro-Organic Chemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran 1417614335, Iran; (M.R.A.-K.); (S.M.)
- Correspondence: (S.A.); (G.R.)
| | - Gholamhossein Riazi
- Laboratory of Neuro-Organic Chemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran 1417614335, Iran; (M.R.A.-K.); (S.M.)
- Correspondence: (S.A.); (G.R.)
| | - Mohammad Reza Ashrafi-Kooshk
- Laboratory of Neuro-Organic Chemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran 1417614335, Iran; (M.R.A.-K.); (S.M.)
| | - Sogol Meknatkhah
- Laboratory of Neuro-Organic Chemistry, Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran 1417614335, Iran; (M.R.A.-K.); (S.M.)
| | - Shahin Ahmadian
- Department of Biochemistry, Institute of Biochemistry and Biophysics, University of Tehran, Tehran 1417614335, Iran;
| | - Mohammad Hooshyari Ardakani
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G.C., Evin, Tehran 1983969411, Iran;
| | - Baharak Hosseinkhani
- Biomedical Research Institute (BIOMED), Hasselt University, Martelarenlaan 42, 3500 Hasselt, Belgium;
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Recent studies of atomic-resolution structures of tau protein and structure-based inhibitors. QUANTITATIVE BIOLOGY 2021. [DOI: 10.15302/j-qb-021-0271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Arsalan N, Hassan Kashi E, Hasan A, Edalat Doost M, Rasti B, Ahamad Paray B, Zahed Nakhjiri M, Sari S, Sharifi M, Shahpasand K, Akhtari K, Haghighat S, Falahati M. Exploring the Interaction of Cobalt Oxide Nanoparticles with Albumin, Leukemia Cancer Cells and Pathogenic Bacteria by Multispectroscopic, Docking, Cellular and Antibacterial Approaches. Int J Nanomedicine 2020; 15:4607-4623. [PMID: 32636621 PMCID: PMC7328876 DOI: 10.2147/ijn.s257711] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 05/29/2020] [Indexed: 12/13/2022] Open
Abstract
Aim The interaction of NPs with biological systems may reveal useful details about their pharmacodynamic, anticancer and antibacterial effects. Methods Herein, the interaction of as-synthesized Co3O4 NPs with HSA was explored by different kinds of fluorescence and CD spectroscopic methods, as well as molecular docking studies. Also, the anticancer effect of Co3O4 NPs against leukemia K562 cells was investigated by MTT, LDH, caspase, real-time PCR, ROS, cell cycle, and apoptosis assays. Afterwards, the antibacterial effects of Co3O4 NPs against three pathogenic bacteria were disclosed by antibacterial assays. Results Different characterization methods such as TEM, DLS, zeta potential and XRD studies proved that fabricated Co3O4 NPs by sol-gel method have a diameter of around 50 nm, hydrodynamic radius of 177 nm with a charge distribution of −33.04 mV and a well-defined crystalline phase. Intrinsic, extrinsic, and synchronous fluorescence as well as CD studies, respectively, showed that the HSA undergoes some fluorescence quenching, minor conformational changes, microenvironmental changes as well as no structural changes in the secondary structure, after interaction with Co3O4 NPs. Molecular docking results also verified that the spherical clusters with a dimension of 1.5 nm exhibit the most binding energy with HSA molecules. Anticancer assays demonstrated that Co3O4 NPs can selectively lead to the reduction of K562 cell viability through the cell membrane damage, activation of caspase-9, -8 and -3, elevation of Bax/Bcl-2 mRNA ratio, ROS production, cell cycle arrest, and apoptosis. Finally, antibacterial assays disclosed that Co3O4 NPs can stimulate a promising antibacterial effect against pathogenic bacteria. Conclusion In general, these observations can provide useful information for the early stages of nanomaterial applications in therapeutic platforms.
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Affiliation(s)
- Niloofar Arsalan
- Department of Biology, Faculty of Basic Sciences, Lahijan Branch, Islamic Azad University (IAU), Lahijan, Guilan, Iran
| | - Elahe Hassan Kashi
- Department of Cellular and Molecular Biology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha 2713, Qatar.,Biomedical Research Centre, Qatar University, Doha 2713, Qatar
| | - Mona Edalat Doost
- Department of Microbiology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Behnam Rasti
- Department of Microbiology, Faculty of Basic Sciences, Lahijan Branch, Islamic Azad University (IAU), Lahijan, Guilan, Iran
| | - Bilal Ahamad Paray
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mona Zahed Nakhjiri
- Department of Biology, Faculty of Basic Sciences, Lahijan Branch, Islamic Azad University (IAU), Lahijan, Guilan, Iran
| | - Soyar Sari
- Department of Cellular and Molecular Biology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Majid Sharifi
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Koorosh Shahpasand
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology (RI-SCBT), Tehran, Iran
| | - Keivan Akhtari
- Department of Physics, University of Kurdistan, Sanandaj, Iran
| | - Setareh Haghighat
- Department of Microbiology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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Şahİn K, DurdaĞi S. Combined ligand and structure-based virtual screening approaches for identification of novel AChE inhibitors. Turk J Chem 2020; 44:574-588. [PMID: 33488178 PMCID: PMC7671205 DOI: 10.3906/kim-1911-57] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Accepted: 03/03/2020] [Indexed: 11/26/2022] Open
Abstract
The excessive activity of acetylcholinesterase enzyme (AChE) causes different neuronal problems, especially dementia and neuronal cell deaths. Food and Drug Administration (FDA) approved drugs donepezil, rivastigmine, tacrine and galantamine are AChE inhibitors and in the treatment of Alzheimer’s disease (AD) these drugs are currently prescribed. However, these inhibitors have various adverse side effects. Therefore, there is a great need for the novel selective AChE inhibitors with fewer adverse side effects for the effective treatment. In this study, combined ligand-based and structure-based virtual screening approaches were used to identify new hit compounds from small molecules library of National Cancer Institute (NCI) containing approximately 265,000 small molecules. In the present study, we developed a computational pipeline method to predict the binding affinities of the studied compounds at the specific target sites. For this purpose, a text mining study was carried out initially and compounds containing the keyword “indol” were considered. The therapeutic activity values against AD were screened using the binary quantitative structure activity relationship (QSAR) models. We then performed docking, molecular dynamics (MD) simulations and free energy analysis to clarify the interactions between selected ligands and enzyme. Thus, in this study we identified new promising hit compounds from a large database that may be used to inhibit the enzyme activity of AChE.
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Affiliation(s)
- Kader Şahİn
- Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahçeşehir University, Istanbul Turkey
| | - Serdar DurdaĞi
- Computational Biology and Molecular Simulations Laboratory, Department of Biophysics, School of Medicine, Bahçeşehir University, Istanbul Turkey
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11
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Askri D, Cunin V, Ouni S, Béal D, Rachidi W, Sakly M, Amara S, Lehmann SG, Sève M. Effects of Iron Oxide Nanoparticles (γ-Fe 2O 3) on Liver, Lung and Brain Proteomes following Sub-Acute Intranasal Exposure: A New Toxicological Assessment in Rat Model Using iTRAQ-Based Quantitative Proteomics. Int J Mol Sci 2019; 20:E5186. [PMID: 31635106 PMCID: PMC6829235 DOI: 10.3390/ijms20205186] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 10/17/2019] [Indexed: 12/20/2022] Open
Abstract
Iron Oxide Nanoparticles (IONPs) present unique properties making them one of the most used NPs in the biomedical field. Nevertheless, for many years, growing production and use of IONPs are associated with risks that can affect human and the environment. Thus, it is essential to study the effects of these nanoparticles to better understand their mechanism of action and the molecular perturbations induced in the organism. In the present study, we investigated the toxicological effects of IONPs (γ-Fe2O3) on liver, lung and brain proteomes in Wistar rats. Exposed rats received IONP solution during 7 consecutive days by intranasal instillation at a dose of 10 mg/kg body weight. An iTRAQ-based quantitative proteomics was used to study proteomic variations at the level of the three organs. Using this proteomic approach, we identified 1565; 1135 and 1161 proteins respectively in the brain, liver and lung. Amon them, we quantified 1541; 1125 and 1128 proteins respectively in the brain, liver and lung. Several proteins were dysregulated comparing treated samples to controls, particularly, proteins involved in cytoskeleton remodeling, cellular metabolism, immune system stimulation, inflammation process, response to oxidative stress, angiogenesis, and neurodegenerative diseases.
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Affiliation(s)
- Dalel Askri
- University Grenoble Alpes, PROMETHEE Proteomic Platform, BEeSy, 38000 Grenoble, France.
- LBFA Inserm U1055, PROMETHEE Proteomic Platform, 38000 Grenoble, France.
- Institut de Biologie et Pathologie, PROMETHEE Proteomic Platform, CHU Grenoble Alpes, 38000, Grenoble, France.
- Carthage University, College of Sciences of Bizerte, Unit of Research in Integrated Physiology, 7021, Bizerte, Tunisia.
| | - Valérie Cunin
- University Grenoble Alpes, PROMETHEE Proteomic Platform, BEeSy, 38000 Grenoble, France.
- LBFA Inserm U1055, PROMETHEE Proteomic Platform, 38000 Grenoble, France.
- Institut de Biologie et Pathologie, PROMETHEE Proteomic Platform, CHU Grenoble Alpes, 38000, Grenoble, France.
| | - Souhir Ouni
- Carthage University, College of Sciences of Bizerte, Unit of Research in Integrated Physiology, 7021, Bizerte, Tunisia.
| | - David Béal
- University Grenoble Alpes, SyMMES/CIBEST UMR 5819 UGA-CNRS-CEA, INAC/CEA-Grenoble LAN, 38000 Grenoble, France.
| | - Walid Rachidi
- University Grenoble Alpes, SyMMES/CIBEST UMR 5819 UGA-CNRS-CEA, INAC/CEA-Grenoble LAN, 38000 Grenoble, France.
| | - Mohsen Sakly
- Carthage University, College of Sciences of Bizerte, Unit of Research in Integrated Physiology, 7021, Bizerte, Tunisia.
| | - Salem Amara
- Carthage University, College of Sciences of Bizerte, Unit of Research in Integrated Physiology, 7021, Bizerte, Tunisia.
- Shaqra University, Faculty of Sciences and Humanities, Department of Natural and Applied Sciences in Afif, 11921 Afif, Saudi Arabia.
| | - Sylvia G Lehmann
- University Grenoble Alpes, PROMETHEE Proteomic Platform, BEeSy, 38000 Grenoble, France.
- LBFA Inserm U1055, PROMETHEE Proteomic Platform, 38000 Grenoble, France.
- Institut de Biologie et Pathologie, PROMETHEE Proteomic Platform, CHU Grenoble Alpes, 38000, Grenoble, France.
- University Grenoble Alpes, University Savoie Mont Blanc, CNRS, IRD, IFSTTAR, ISTerre, 38000 Grenoble, France.
| | - Michel Sève
- University Grenoble Alpes, PROMETHEE Proteomic Platform, BEeSy, 38000 Grenoble, France.
- LBFA Inserm U1055, PROMETHEE Proteomic Platform, 38000 Grenoble, France.
- Institut de Biologie et Pathologie, PROMETHEE Proteomic Platform, CHU Grenoble Alpes, 38000, Grenoble, France.
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Gamasaee NA, Muhammad HA, Tadayon E, Ale-Ebrahim M, Mirpour M, Sharifi M, Salihi A, Shekha MS, Alasady AAB, Aziz FM, Akhtari K, Hasan A, Falahati M. The effects of nickel oxide nanoparticles on structural changes, heme degradation, aggregation of hemoglobin and expression of apoptotic genes in lymphocytes. J Biomol Struct Dyn 2019; 38:3676-3686. [PMID: 31476976 DOI: 10.1080/07391102.2019.1662850] [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: 01/17/2023]
Abstract
Nickel oxide nanoparticles (NiO NPs) have received great interests in medical and biotechnological applications. However, their adverse impacts against biological systems have not been well-explored. Herein, the influence of NiO NPs on structural changes, heme degradation and aggregation of hemoglobin (Hb) was evaluated by UV-visible (Vis) spectroscopy, circular dichroism (CD) spectroscopy, fluorescence spectroscopy, transmission electron microscopy (TEM), and molecular modeling investigations. Also, the morphological changes and expression of Bax/Bcl-2 mRNA in human lymphocyte cell exposed to NiO NPs were assayed by DAPI staining and quantitative real-time PCR (qPCR), respectively. The UV-Vis study depicted that NiO NPs resulted in the displacement of aromatic residues and heme groups and production of the pro-aggregatory species. Intrinsic and Thioflavin T (ThT) fluorescence studies revealed that NiO NPs resulted in heme degradation and amorphous aggregation of Hb, respectively, which the latter result was also confirmed by TEM study. Moreover, far UV-CD study depicted that NiO NPs lead to substantial secondary structural changes of Hb. Furthermore, near UV-CD displayed that NiO NPs cause quaternary conformational changes of Hb as well as heme displacement. Molecular modelling study also approved that NiO NPs resulted in structural alterations of Hb and heme deformation. Moreover, morphological and genotoxicity assays revealed that the DNA fragmentation and expression ratio of Bax/Bcl-2 mRNA increased in lymphocyte cells treated with NiO NPs for 24 hr. In conclusion, this study indicates that NiO NPs may affect the biological media and their applications should be limited.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Niusha Abbasi Gamasaee
- Department of Genetics, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Hawzheen A Muhammad
- Department of Microbiology, College of Medicine, University of Sulaimani, Sulaimani, Kurdistan Region, Iraq
| | - Elahe Tadayon
- Faculty of Specialized Veterinary Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mahsa Ale-Ebrahim
- Department of Physiology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mirsasan Mirpour
- Department of Microbiology, Faculty of Basic Sciences, Lahijan Branch, Islamic Azad University (IAU), Lahijan, Guilan, Iran
| | - Majid Sharifi
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq.,Department of Medical Analysis, Faculty of Science, Tishk International University, Erbil, Iraq
| | - Mudhir Sabir Shekha
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq.,Department of Pathological Analysis, College of Science, Knowledge University, Erbil, Kurdistan Region, Iraq
| | - Asaad A B Alasady
- Anatomy, Histology, and Embryology Unit, College of Medicine, University of Duhok, Kurdistan Region, Iraq
| | - Falah Mohammad Aziz
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Keivan Akhtari
- Department of Physics, University of Kurdistan, Sanandaj, Iran
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha, Qatar.,Biomedical Research Centre (BRC), Qatar University, Doha, Qatar
| | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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13
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Gambucci M, Gentili PL, Sassi P, Latterini L. A multi-spectroscopic approach to investigate the interactions between Gramicidin A and silver nanoparticles. SOFT MATTER 2019; 15:6571-6580. [PMID: 31364666 DOI: 10.1039/c9sm01110b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The comprehension and control of the interactions between nanoparticles and proteins at a molecular level are crucial to improve biomedical applications of nanomaterials and to develop nanosystems able to influence and regulate the conformational changes in proteins. In this work, we explore the interactions between Gramicidin A peptide (GramA) and dodecanethiol-stabilized small silver nanoparticles (D-AgNPs), paying particular attention to the effect on GramA conformation in POPC bilayers. D-AgNPs have been prepared to have dimensions (5 nm) and a hydrophobic nature compatible with the POPC lipid bilayer. Fluorescence, Raman and IR spectroscopies have been used to investigate both peptide conformation and its position inside the phospholipid bilayer. Results are discussed in terms of solvent exposure and conformation of GramA peptide.
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Affiliation(s)
- Marta Gambucci
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto, 8- 06123 Perugia, Italy.
| | - Pier Luigi Gentili
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto, 8- 06123 Perugia, Italy.
| | - Paola Sassi
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto, 8- 06123 Perugia, Italy.
| | - Loredana Latterini
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Via Elce di Sotto, 8- 06123 Perugia, Italy.
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14
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Narang SS, Goyal D, Goyal B. Inhibition of Alzheimer’s amyloid-β42 peptide aggregation by a bi-functional bis-tryptoline triazole: key insights from molecular dynamics simulations. J Biomol Struct Dyn 2019; 38:1598-1611. [DOI: 10.1080/07391102.2019.1614093] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Simranjeet Singh Narang
- Department of Chemistry, Faculty of Basic and Applied Sciences, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab, India
| | - Deepti Goyal
- Department of Chemistry, Faculty of Basic and Applied Sciences, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab, India
| | - Bhupesh Goyal
- School of Chemistry & Biochemistry, Thapar Institute of Engineering & Technology, Patiala, Punjab, India
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15
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Shuaib S, Saini RK, Goyal D, Goyal B. Impact of K16A and K28A mutation on the structure and dynamics of amyloid-β42 peptide in Alzheimer’s disease: key insights from molecular dynamics simulations. J Biomol Struct Dyn 2019; 38:708-721. [DOI: 10.1080/07391102.2019.1586587] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Suniba Shuaib
- Department of Chemistry, Faculty of Basic and Applied Sciences, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab, India
| | - Rajneet Kaur Saini
- Department of Chemistry, Faculty of Basic and Applied Sciences, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab, India
| | - Deepti Goyal
- Department of Chemistry, Faculty of Basic and Applied Sciences, Sri Guru Granth Sahib World University, Fatehgarh Sahib, Punjab, India
| | - Bhupesh Goyal
- School of Chemistry & Biochemistry, Thapar Institute of Engineering & Technology, Patiala, Punjab, India
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16
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Xu H, Tang Z, Zuo Y, Xiong F, Chen K, Jiang H, Luo C, Zhang H. Molecular dynamics simulation revealed the intrinsic conformational change of cellular inhibitor of apoptosis protein-1. J Biomol Struct Dyn 2019; 38:975-984. [PMID: 30843765 DOI: 10.1080/07391102.2019.1591303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Inhibitor of apoptosis proteins (IAPs) are important regulators of apoptosis, and protein targets for the development of anti-cancer drugs. Cellular inhibitor of apoptosis protein-1 (cIAP1) is an important member of IAPs. Peptides or small-molecular antagonists can induce the dimerization, auto-ubiquitination, and proteasomal degradation of the cellular inhibitor of apoptosis protein-1 (cIAP1). While in the absence of antagonists, several mutations of the cIAP1 protein also lead to its dimerization and auto-ubiquitination. Even though the crystal structure of cIAP1 protein has been determined, the intrinsic mechanism of its dimerization remains unexplored. Accumulating evidence indicated that intrinsic conformational change existed during the binding of antagonists with cIAP1 protein, or introduction of mutations. To reveal this intrinsic conformational change, molecular dynamics simulations at microsecond scale were applied for the wild-type and mutant-type cIAP1 proteins. Compared to the crystal structure, significant conformational change was observed during the simulations, which could explain the importance of previously identified key mutations. To validate these findings revealed by our simulations, a new mutation D303A was constructed and the following native polyacrylamide gel electrophoresis (native-PAGE) assay observed a proportion of spontaneous dimerization, in comparison with the wild-type control. Taken together, these computational and experimental results revealed the intrinsic conformational change of cIAP1, which could not only explain previously identified key mutations, but also be exploited for further design and development of anti-tumor compounds that target the cIAP1 protein.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Heng Xu
- Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | | | - Yu Zuo
- School of Pharmacy, Nanchang University, Nanchang, China
| | - Fengmin Xiong
- School of Pharmacy, Nanchang University, Nanchang, China
| | - Kaixian Chen
- Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Hualiang Jiang
- Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Cheng Luo
- Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Hao Zhang
- Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
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17
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Fardanesh A, Zibaie S, Shariati B, Attar F, Rouhollah F, Akhtari K, Shahpasand K, Saboury AA, Falahati M. Amorphous aggregation of tau in the presence of titanium dioxide nanoparticles: biophysical, computational, and cellular studies. Int J Nanomedicine 2019; 14:901-911. [PMID: 30774341 PMCID: PMC6362919 DOI: 10.2147/ijn.s194658] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Nanoparticles (NPs) when injected into the body can reach target tissues like nervous system and interact with tau proteins and neurons. This can trigger conformational changes of tau and may affect NP toxicity. Methods In this study, we used several biophysical techniques (extrinsic and intrinsic fluorescence spectroscopy, circular dichroism (CD) spectroscopy, ultraviolet (UV)-visible spectroscopy), transmission electron microscopy (TEM) investigations, molecular docking and molecular dynamics studies, and cellular assays [3-(4,5-Dimethylthiazol-2-Yl)-2,5-Diphenyltetrazolium Bromide (MTT) and flow cytometry) to reveal how structural changes of tau protein can change the cytotoxicity of titanium dioxide (TiO2) NPs against neuron-like cells (SH-SY5Y) cells. Results It was shown that TiO2 NPs result in hydrophilic interactions, secondary and tertiary structural changes, and the formation of amorphous tau aggregates. Conformational changes of tau increased the induced cytotoxicity by TiO2 NPs. These data revealed that the denatured adsorbed protein on the NP surface may enhance NP cytotoxicity. Conclusion Therefore, this study provides useful insights on the NP-protein interactions and discusses how the protein corona can increase cytotoxicity to determine the efficacy of targeted delivery of nanosystems.
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Affiliation(s)
- Aida Fardanesh
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sedigheh Zibaie
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Behdad Shariati
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Farnoosh Attar
- Department of Biology, Faculty of Food Industry and Agriculture, Standard Research Institute (SRI), Karaj, Iran
| | - Fatemeh Rouhollah
- Department of Cellular and Molecular Biology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Keivan Akhtari
- Department of Physics, University of Kurdistan, Sanandaj, Iran
| | - Koroosh Shahpasand
- Department of Brain and Cognitive Sciences, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran,
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18
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Abdolmajid E, Kharazi H, Chalaki M, Khojasteh M, Haghighat S, Attar F, Nemati F, Falahati M. Titanium oxide nanoparticles fabrication, hemoglobin interaction, white blood cells cytotoxicity, and antibacterial studies. J Biomol Struct Dyn 2018; 37:3007-3017. [PMID: 30044173 DOI: 10.1080/07391102.2018.1499555] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
This study is focused on the fabrication and characterization of titanium oxide (TiO2) NPs. Afterwards; the interaction of TiO2 NPs with human hemoglobin (Hb) was investigated by FTIR spectroscopy, fluorescence spectroscopy, and molecular docking studies. Also, the cytotoxic effect of fabricated TiO2 NPs against human white blood cells (WBCs) was considered by MTT assay. The antibacterial effect of synthesized NPs was examined on Pseudomonas aeruginosa (ATCC 27853); Escherichia coli (ATCC 25922) and Staphylococcus aureus (ATCC 25923). TEM and DLS investigations showed that the synthesized TiO2 NPs have a narrow nano-sized distribution. XRD pattern of the fabricated NPs exhibited that the TiO2 NPs contain anatase phase. Similarity in amide I and II signal intensities showed that secondary structure of the adsorbed Hb is preserved. The intrinsic fluorescence study revealed that the fluorescence quenching of Hb was done by complex formation between Hb and TiO2 NPs trough the hydrogen bond and van der Waals interactions. Synchronous fluorescence spectroscopy determined that interaction of TiO2 NPs with Hb did not unfold the Hb structure in the vicinity of the Tyr and Trp residues. Molecular docking study depicted that Glu-95, Thr-134 and Tyr-140 are involved in the formation of hydrophilic bonds. MTT data and antibacterial assays indicated that TiO2 NPs endow distinguished antibacterial activities against Gram-negative and Gram positive strains at safe concentrations. This study may reveal that fabricated TiO2 NP can be used as a safe and potent antibacterial agent. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Elham Abdolmajid
- a Department of Biotechnology, Faculty of Advance Science and Technology , Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS) , Tehran , Iran
| | - Hasti Kharazi
- b Department of Cellular and Molecular Biology, Faculty of Advance Science and Technology , Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS) , Tehran , Iran
| | - Mahfam Chalaki
- b Department of Cellular and Molecular Biology, Faculty of Advance Science and Technology , Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS) , Tehran , Iran
| | - Marzieh Khojasteh
- b Department of Cellular and Molecular Biology, Faculty of Advance Science and Technology , Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS) , Tehran , Iran
| | - Setareh Haghighat
- c Department of Microbiology, Faculty of Advance Science and Technology , Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS) , Tehran , Iran
| | - Farnoosh Attar
- d Department of Biology, Faculty of Food Industry and Agriculture, Standard Research Institute (SRI) , Karaj , Iran
| | - Fahimeh Nemati
- e Department of Nanotechnology, Faculty of Advance Science and Technology , Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS) , Tehran , Iran
| | - Mojtaba Falahati
- d Department of Biology, Faculty of Food Industry and Agriculture, Standard Research Institute (SRI) , Karaj , Iran
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19
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Shariati B, Yektadoost E, Behzadi E, Azmoodeh E, Attar F, Sari S, Akhtari K, Falahati M. Interaction of silica nanoparticles with tau proteins and PC12 cells: Colloidal stability, thermodynamic, docking, and cellular studies. Int J Biol Macromol 2018; 118:1963-1973. [PMID: 30009913 DOI: 10.1016/j.ijbiomac.2018.07.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/03/2018] [Accepted: 07/11/2018] [Indexed: 12/12/2022]
Abstract
Study on the side effects of the nanoparticles (NPs) can provide useful information regarding their biological and medical applications. Herein, the colloidal stability of the silicon dioxide NPs (SiO2 NPs) in the absence and presence of tau was investigated by TEM and DLS techniques. Afterwards, the thermodynamic parameters of interaction between SiO2 NPs and tau were determined by fluorescence spectroscopy and docking studies. Finally, the cytotoxic effects of SiO2 NPs on the viability of PC12 cells were investigated by MTT, AO/EB staining and flow cytometry assays. TEM, DLS, and zeta potential investigations revealed that tau can reduce the colloidal stability of SiO2 NPs. Fluorescence spectroscopy study indicated that SiO2 NPs bound to the tau with high affinity through hydrogen bonds and van der Waals interactions. Docking study also determined that Ser, Thr and Tyr residues provide a polar microenvironment for SiO2 NPs/tau interaction. Cellular studies demonstrated that SiO2 NPs can induce cell mortality through both apoptosis and necrosis mechanisms. Therefore, it may be concluded that the biological systems such as nervous system proteins can affect the colloidal stability of NPs and vice versa NPs in the biological systems can bind to proteins and cell membranes non-specifically and may induce toxicity.
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Affiliation(s)
- Behdad Shariati
- Pharmaceutical Sciences Research Center, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran
| | - Elham Yektadoost
- Pharmaceutical Sciences Research Center, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran
| | - Elham Behzadi
- Pharmaceutical Sciences Research Center, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran
| | - Elnaz Azmoodeh
- Pharmaceutical Sciences Research Center, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran
| | - Farnoosh Attar
- Department of Biology, Faculty of Food Industry & Agriculture, Standard Research Institute (SRI), Karaj, Iran
| | - Soyar Sari
- Department of Cellular and Molecular Biology, Faculty of Advance Science and Technology, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran
| | - Keivan Akhtari
- Department of Physics, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
| | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advance Science and Technology, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran.
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20
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Nouri M, Esfahanizadeh N, Shahpar MG, Attar F, Sartipnia N, Akhtari K, Saboury AA, Falahati M. Cobalt oxide nanoparticles mediate tau denaturation and cytotoxicity against PC-12 cell line. Int J Biol Macromol 2018; 118:1763-1772. [PMID: 30017981 DOI: 10.1016/j.ijbiomac.2018.07.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/05/2018] [Accepted: 07/07/2018] [Indexed: 12/19/2022]
Abstract
It has not been well explored how NPs may induce some adverse effects on the biological systems. In this research, the interaction of cobalt oxide NPs (Co3O4 NPs) with tau protein and PC-12 cell line, as nervous system models, was investigated with several approaches including fluorescence spectroscopy, CD spectroscopy, docking study, MTT, LDH, AO/EB dual staining, and flow cytometry assays. Fluorescence investigation displayed that Co3O4 NPs spontaneously mediate the formation of a static complex with tau protein through hydrogen bonds and van der Waals forces. Docking study also revealed that Ser and Gln residues play important roles in the formation of hydrogen bonds between tau and Co3O4 NPs. Far UV-CD measurement determined that Co3O4 NPs changed the unfolded structure of tau protein toward a more folded conformation. Moreover, Co3O4 NPs demonstrated to stimulate the reduction of PC-12 cell viability through membrane leakage, fragmentation of DNA, apoptosis, and necrosis. In conclusion, Co3O4 NPs may trigger marked alterations on the tertiary and secondary structure of tau protein. Also, the dose of Co3O4 NPs is the crucial factor which induces their adverse effects on the cells. Because, all side effects of NPs are not well explored, additional detailed experiments are more needed.
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Affiliation(s)
- Mina Nouri
- Department of Cellular and Molecular Biology, Faculty of Advance Science and Technology, Pharmaceutical Sciences Branch, Islamic Azad University of Tehran (IAUPS), Iran
| | - Narges Esfahanizadeh
- Department of Cellular and Molecular Biology, Faculty of Advance Science and Technology, Pharmaceutical Sciences Branch, Islamic Azad University of Tehran (IAUPS), Iran
| | - Mahsa Ghofrani Shahpar
- Department of Cellular and Molecular Biology, Faculty of Advance Science and Technology, Pharmaceutical Sciences Branch, Islamic Azad University of Tehran (IAUPS), Iran
| | - Farnoosh Attar
- Department of Biology, Faculty of Food Industry & Agriculture, Standard Research Institute (SRI), Karaj, Iran
| | - Nasrin Sartipnia
- Department of Biology, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran
| | - Keivan Akhtari
- Department of Physics, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
| | - Ali Akbar Saboury
- Inistitite of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advance Science and Technology, Pharmaceutical Sciences Branch, Islamic Azad University of Tehran (IAUPS), Iran.
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21
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Borisova T. Nervous System Injury in Response to Contact With Environmental, Engineered and Planetary Micro- and Nano-Sized Particles. Front Physiol 2018; 9:728. [PMID: 29997517 PMCID: PMC6028719 DOI: 10.3389/fphys.2018.00728] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/25/2018] [Indexed: 01/11/2023] Open
Abstract
Nerve cells take a special place among other cells in organisms because of their unique function mechanism. The plasma membrane of nerve cells from the one hand performs a classical barrier function, thereby being foremost targeted during contact with micro- and nano-sized particles, and from the other hand it is very intensively involved in nerve signal transmission, i.e., depolarization-induced calcium-dependent compound exocytosis realized via vesicle fusion following by their retrieval and calcium-independent permanent neurotransmitter turnover via plasma membrane neurotransmitter transporters that utilize Na+/K+ electrochemical gradient as a driving force. Worldwide traveling air pollution particulate matter is now considered as a possible trigger factor for the development of a variety of neuropathologies. Micro- and nano-sized particles can reach the central nervous system during inhalation avoiding the blood-brain barrier, thereby making synaptic neurotransmission extremely sensitive to their influence. Neurosafety of environmental, engineered and planetary particles is difficult to predict because they possess other features as compared to bulk materials from which the particles are composed of. The capability of the particles to absorb heavy metals and organic neurotoxic molecules from the environment, and moreover, spontaneously interact with proteins and lipids in organisms and form biomolecular corona can considerably change the particles' features. The absorption capability occasionally makes them worldwide traveling particulate carriers for delivery of environmental neurotoxic compounds to the brain. Discrepancy of the experimental data on neurotoxicity assessment of micro- and nano-sized particles can be associated with a variability of systems, in which neurotoxicity was analyzed and where protein components of the incubation media forming particle biocorona can significantly distort and even eliminate factual particle effects. Specific synaptic mechanisms potentially targeted by environmental, engineered and planetary particles, general principles of particle neurosafety and its failure were discussed. Particle neurotoxic potential depends on their composition, size, shape, surface properties, stability in organisms and environment, capability to absorb neurotoxic compounds, form dust and interrelate with different biomolecules. Changes in these parameters can break primary particle neurosafety.
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Affiliation(s)
- Tatiana Borisova
- Department of Neurochemistry, Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kiev, Ukraine
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