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Sherova ZU, Nasriddinov AS, Kholov SЕ, Usmanova SR, Muhidinov ZK. Molecular weight and molecular weight distribution of sericin protein extracted from cocoon waste of <i>Bombyx mori</i>. PROCEEDINGS OF UNIVERSITIES. APPLIED CHEMISTRY AND BIOTECHNOLOGY 2023. [DOI: 10.21285/2227-2925-2022-12-4-547-556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Silk sericin comprises a globular water-soluble protein that surrounds silk fibres, sticking them together and providing cocoon adhesion. Sericin was isolated from the extract solution in two ways: the first sample was obtained by concentrating the filtered extract at low pressure (SLP); the second sample was obtained by ultrafiltration (SUF) using a membrane. In this work, the size exclusion-high-performance liquid chromatography involving viscometry and refractive index detectors was used to determine the molecular weight and conformation of sericin polypeptides obtained from cocoons of the Bombyx mori silkworm. The aggregation processes of silk sericin protein under various isolation conditions from the solution were considered. It was shown that sericin macromolecules are present as a monodisperse polypeptide at low concentrations, which aggregates at concentrations greater than 1–2 mg/ml. The obtained data indicate that, along with the parameters of the extraction process, the conditions for its isolation from the solution, including temperature, pressure and degree of concentration, affect the molecular weight and aggregative behaviour of the protein. The results confirm and complement previously obtained data on the influence of various factors on the association of protein macromolecules in solution. The resulting sericin fractions can find many applications, including materials for tissue engineering, coatings for surface modification, cell culture media, cosmetics, as well as food additives and medical biomaterials.
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Affiliation(s)
- Z. U. Sherova
- V.I. Nikitin Institute of Chemistry, NAS Republic of Tajikistan
| | | | - Sh. Е. Kholov
- V.I. Nikitin Institute of Chemistry, NAS Republic of Tajikistan
| | - S. R. Usmanova
- V.I. Nikitin Institute of Chemistry, NAS Republic of Tajikistan
| | - Z. K. Muhidinov
- V.I. Nikitin Institute of Chemistry, NAS Republic of Tajikistan
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Das TK, Chou DK, Jiskoot W, Arosio P. Nucleation in protein aggregation in biotherapeutic development: a look into the heart of the event. J Pharm Sci 2022; 111:951-959. [DOI: 10.1016/j.xphs.2022.01.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 12/26/2022]
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Application of Tunable Resistive Pulse Sensing for the Quantification of Submicron Particles in Pharmaceutical Monoclonal Antibody Preparations. J Pharm Sci 2021; 110:3541-3545. [PMID: 34303672 DOI: 10.1016/j.xphs.2021.07.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 07/19/2021] [Accepted: 07/19/2021] [Indexed: 11/19/2022]
Abstract
Tunable resistive pulse sensing (TRPS, qNano Gold, IZON Ltd.) was investigated as a method to quantify submicron particles (SMPs) between 0.1 and 1 µm in solutions of biopharmaceuticals. To reduce sample dilution, a spiking-in approach was used to add the appropriate amount of electrolytes required for the measurement. For correct particle quantification, an electrolyte concentration of at least 50 mM sodium chloride was needed. Intra- and inter-nanopore variability were below 5% for size and below 10% for concentration measurements when analyzing polystyrene standard beads. Submicron particle counts in a stir stressed IgG1 monoclonal antibody formulation resulted in a non-symmetrical, almost bell-shaped size distribution with a maximum at 250 nm when using a NP300 nanopore (IZON Ltd.). It was shown that particle counts are heavily underestimated below 250 nm, and therefore it is recommended to quantify particle counts by TRPS in samples with heterogeneous particle size distributions (e.g., biopharmaceuticals) only starting from the maximum of the histogram towards the upper limit of detection.
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Gaál A, Garay TM, Horváth I, Máthé D, Szöllősi D, Veres DS, Mbuotidem J, Kovács T, Tóvári J, Bergmann R, Streli C, Szakács G, Mihály J, Varga Z, Szoboszlai N. Development and In Vivo Application of a Water-Soluble Anticancer Copper Ionophore System Using a Temperature-Sensitive Liposome Formulation. Pharmaceutics 2020; 12:pharmaceutics12050466. [PMID: 32443790 PMCID: PMC7284829 DOI: 10.3390/pharmaceutics12050466] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/01/2020] [Accepted: 05/15/2020] [Indexed: 12/13/2022] Open
Abstract
Liposomes containing copper and the copper ionophore neocuproine were prepared and characterized for in vitro and in vivo anticancer activity. Thermosensitive PEGylated liposomes were prepared with different molar ratios of 1,2-dipalmitoyl-sn-glycero-3-phosphatidylcholine (DPPC) and hydrogenated soybean phosphatidylcholine (HSPC) in the presence of copper(II) ions. Optimal, temperature dependent drug release was obtained at 70:30 DPPC to HSPC weight ratio. Neocuproine (applied at 0.2 mol to 1 mol phospholipid) was encapsulated through a pH gradient while using unbuffered solution at pH 4.5 inside the liposomes, and 100 mM HEPES buffer pH 7.8 outside the liposomes. Copper ions were present in excess, yielding 0.5 mM copper-(neocuproine)2 complex and 0.5 mM free copper. Pre-heating to 45 °C increased the toxicity of the heat-sensitive liposomes in short-term in vitro experiments, whereas at 72 h all investigated liposomes exhibited similar in vitro toxicity to the copper(II)-neocuproine complex (1:1 ratio). Thermosensitive liposomes were found to be more effective in reducing tumor growth in BALB/c mice engrafted with C26 cancer cells, regardless of the mild hyperthermic treatment. Copper uptake of the tumor was verified by PET/CT imaging following treatment with [64Cu]Cu-neocuproine liposomes. Taken together, our results demonstrate the feasibility of targeting a copper nanotoxin that was encapsulated in thermosensitive liposomes containing an excess of copper.
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Affiliation(s)
- Anikó Gaál
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, H-1117 Budapest, Hungary; (A.G.); (J.M.)
| | - Tamás M. Garay
- Faculty of Information Technology and Bionics, Pázmány Péter Catholic University, H-1083 Budapest, Práter utca 50/a, Hungary
- 1st Department of Internal Medicine and Oncology, Semmelweis University, H-1083 Budapest, Hungary
- Correspondence: (T.M.G.); (Z.V.); (N.S.); Tel.: +36-1-8864-769 (T.M.G.); +36-1-382-6568 (Z.V.); +36-1-372-2500 (ext. 6430) (N.S.)
| | - Ildikó Horváth
- Department of Biophysics and Radiation Biology, Semmelweis University, H-1094 Budapest, Hungary; (I.H.); (D.M.); (D.S.); (D.S.V.); (R.B.)
| | - Domokos Máthé
- Department of Biophysics and Radiation Biology, Semmelweis University, H-1094 Budapest, Hungary; (I.H.); (D.M.); (D.S.); (D.S.V.); (R.B.)
- CROmed Translational Research Centers Ltd., H-1047 Budapest, Hungary
| | - Dávid Szöllősi
- Department of Biophysics and Radiation Biology, Semmelweis University, H-1094 Budapest, Hungary; (I.H.); (D.M.); (D.S.); (D.S.V.); (R.B.)
| | - Dániel S. Veres
- Department of Biophysics and Radiation Biology, Semmelweis University, H-1094 Budapest, Hungary; (I.H.); (D.M.); (D.S.); (D.S.V.); (R.B.)
| | - Jeremiah Mbuotidem
- Institute of Translational Medicine, Semmelweis University, H-1094 Budapest, Hungary;
| | - Tibor Kovács
- Institute of Radiochemistry and Radioecology, University of Pannonia, H-8200 Veszprém, Hungary;
| | - József Tóvári
- Department of Experimental Pharmacology, National Institute of Oncology, H-1122 Budapest, Hungary;
| | - Ralf Bergmann
- Department of Biophysics and Radiation Biology, Semmelweis University, H-1094 Budapest, Hungary; (I.H.); (D.M.); (D.S.); (D.S.V.); (R.B.)
- Helmholz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, D-01328 Dresden, Germany
| | - Christina Streli
- Institute of Atomic and Subatomic Physics, Atominstitut, TU Wien, A-1020 Vienna, Stadionallee 2, Austria;
| | - Gergely Szakács
- Institute of Enzymology, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary;
- Institute of Cancer Research, Medical University Vienna, A-1090 Vienna, Austria
| | - Judith Mihály
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, H-1117 Budapest, Hungary; (A.G.); (J.M.)
| | - Zoltán Varga
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar Tudósok Körútja 2, H-1117 Budapest, Hungary; (A.G.); (J.M.)
- Correspondence: (T.M.G.); (Z.V.); (N.S.); Tel.: +36-1-8864-769 (T.M.G.); +36-1-382-6568 (Z.V.); +36-1-372-2500 (ext. 6430) (N.S.)
| | - Norbert Szoboszlai
- Laboratory for Environmental Chemistry and Bioanalytics, Institute of Chemistry, Eötvös Loránd University, H-1117 Budapest, Pázmány Péter Stny. 1/A, Hungary
- Correspondence: (T.M.G.); (Z.V.); (N.S.); Tel.: +36-1-8864-769 (T.M.G.); +36-1-382-6568 (Z.V.); +36-1-372-2500 (ext. 6430) (N.S.)
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Varga Z, Fehér B, Kitka D, Wacha A, Bóta A, Berényi S, Pipich V, Fraikin JL. Size Measurement of Extracellular Vesicles and Synthetic Liposomes: The Impact of the Hydration Shell and the Protein Corona. Colloids Surf B Biointerfaces 2020; 192:111053. [PMID: 32361376 DOI: 10.1016/j.colsurfb.2020.111053] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 03/16/2020] [Accepted: 04/12/2020] [Indexed: 10/24/2022]
Abstract
Size characterization of extracellular vesicles (EVs) and drug delivery liposomes is of great importance in their applications in diagnosis and therapy of diseases. There are many different size characterization techniques used in the field, which often report different size values. Besides technological biases, these differences originate from the fact that various methods measure different physical quantities to determine particle size. In this study, the size of synthetic liposomes with nominal diameters of 50nm and 100nm, and red blood cell-derived EVs (REVs) were measured with established optical methods, such as dynamic light scattering (DLS) and nanoparticle tracking analysis (NTA), and with emerging non-optical methods such as microfluidic resistive pulse sensing (MRPS) and very small-angle neutron scattering (VSANS). The comparison of the hydrodynamic sizes obtained by DLS and NTA with the sizes corresponding to the excluded volume of the particles by MRPS enabled the estimation of the thickness of the hydration shell of the particles. The comparison of diameter values corresponding to the boundary of the phospholipid bilayer obtained from VSANS measurements with MRPS size values revealed the thickness of the polyethylene glycol-layer in case of synthetic liposomes, and the thickness of the protein corona in case of REVs.
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Affiliation(s)
- Zoltán Varga
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary.
| | - Bence Fehér
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary; Institute of Chemistry, Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
| | - Diána Kitka
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary
| | - András Wacha
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary
| | - Attila Bóta
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2, H-1117 Budapest, Hungary
| | - Szilvia Berényi
- BME Chemical Nanosensors Research Group, Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4. H-1111 Budapest, Hungary
| | - Vitaliy Pipich
- Jülich Centre for Neutron Science JCNS at Heinz Maier-Leibnitz Zentrum, Forschungszentrum Jülich GmbH, Lichtenbergstraße 1, 85747 Garching, Germany
| | - Jean-Luc Fraikin
- Spectradyne LLC, 23875 Madison St, Suite A, 90505 Torrance, CA, USA
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Hubert M, Yang DT, Kwok SC, Rios A, Das TK, Patel A, Wuchner K, Antochshuk V, Junge F, Bou-Assaf GM, Cao S, Saggu M, Montrond L, Afonina N, Kolhe P, Loladze V, Narhi L. A Multicompany Assessment of Submicron Particle Levels by NTA and RMM in a Wide Range of Late-Phase Clinical and Commercial Biotechnology-Derived Protein Products. J Pharm Sci 2020; 109:830-844. [DOI: 10.1016/j.xphs.2019.10.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 10/09/2019] [Accepted: 10/11/2019] [Indexed: 01/15/2023]
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Kitka D, Mihály J, Fraikin JL, Beke-Somfai T, Varga Z. Detection and phenotyping of extracellular vesicles by size exclusion chromatography coupled with on-line fluorescence detection. Sci Rep 2019; 9:19868. [PMID: 31882862 PMCID: PMC6984749 DOI: 10.1038/s41598-019-56375-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Accepted: 12/05/2019] [Indexed: 12/15/2022] Open
Abstract
New methods for quantifying extracellular vesicles (EVs) in complex biofluids are critically needed. We report the development of a new technology combining size exclusion chromatography (SEC), a commonly used EV purification technique, with fluorescence detection of specifically labelled EVs. The resulting platform, Flu-SEC, demonstrates a linear response to concentration of specific EVs and could form the basis of a system with phenotyping capability. Flu-SEC was validated using red blood cell derived EVs (REVs), which provide an ideal EV model with monodisperse size distribution and high EV concentration. Microfluidic Resistive Pulse Sensing (MRPS) was used to accurately determine the size distribution and concentration of REVs. Anti-CD235a antibody, specific to glycophorin A, and the more general wheat germ agglutinin (WGA), were selected to label REVs. The results show the quantitative power of Flu-SEC: a highly linear fluorescence response over a wide range of concentrations. Moreover, the Flu-SEC technique reports the ratio of EV-bound and free-antibody molecules, an important metric for determining optimal labelling conditions for other applications. Flu-SEC represents an orthogonal tool to single-particle fluorescent methods such as flow cytometry and fluorescent NTA, for the quantification and phenotyping of EVs.
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Affiliation(s)
- Diána Kitka
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary
| | - Judith Mihály
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary
| | | | - Tamás Beke-Somfai
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary
| | - Zoltán Varga
- Biological Nanochemistry Research Group, Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Budapest, Hungary.
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Wang W, Roberts CJ. Protein aggregation – Mechanisms, detection, and control. Int J Pharm 2018; 550:251-268. [DOI: 10.1016/j.ijpharm.2018.08.043] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 08/18/2018] [Accepted: 08/20/2018] [Indexed: 12/19/2022]
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Grabarek AD, Weinbuch D, Jiskoot W, Hawe A. Critical Evaluation of Microfluidic Resistive Pulse Sensing for Quantification and Sizing of Nanometer- and Micrometer-Sized Particles in Biopharmaceutical Products. J Pharm Sci 2018; 108:563-573. [PMID: 30176253 DOI: 10.1016/j.xphs.2018.08.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 07/31/2018] [Accepted: 08/14/2018] [Indexed: 10/28/2022]
Abstract
The objective was to evaluate performance, strengths, and limitations of the microfluidic resistive pulse sensing (MRPS) technique for the characterization of particles in the size range from about 50 to 2000 nm. MRPS, resonant mass measurement (RMM), nanoparticle tracking analysis (NTA) and dynamic light scattering were compared for the analysis of nanometer-sized polystyrene (PS) beads, liposomes, bacteria, and protein aggregates. An electrical conductivity of at least 3 mS/cm (equivalent to 25 mM NaCl) was determined as a key requirement for reliable analysis with MRPS. Particle size distributions of PS beads determined by MRPS, NTA, and RMM correlated well. However, counting precision varied significantly among the techniques and was best for RMM followed by MRPS and NTA. As determined by measuring single and mixed PS bead populations, MRPS showed the highest peak resolution for sizing. RMM and MRPS were superior over dynamic light scattering and NTA for the characterization of stressed protein samples. Finally, MRPS proved to be the only analytical technique able to characterize both bacteria and liposomes. In conclusion, MRPS is an orthogonal technique alongside other established techniques for a comprehensive analysis of a samples particle size distribution and particle concentration.
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Affiliation(s)
- Adam D Grabarek
- Coriolis Pharma Research GmbH, Fraunhoferstr, 18b, 82152 Martinsried, Munich, Germany; Division of BioTherapeutics, Leiden Academic Centre for Drug Research (LACDR), Leiden University, PO Box 9502, 2300, RA, Leiden, The Netherlands
| | - Daniel Weinbuch
- Coriolis Pharma Research GmbH, Fraunhoferstr, 18b, 82152 Martinsried, Munich, Germany
| | - Wim Jiskoot
- Coriolis Pharma Research GmbH, Fraunhoferstr, 18b, 82152 Martinsried, Munich, Germany; Division of BioTherapeutics, Leiden Academic Centre for Drug Research (LACDR), Leiden University, PO Box 9502, 2300, RA, Leiden, The Netherlands
| | - Andrea Hawe
- Coriolis Pharma Research GmbH, Fraunhoferstr, 18b, 82152 Martinsried, Munich, Germany.
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