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Aglikov A, Volkova O, Bondar A, Moskalenko I, Novikov A, Skorb EV, Smirnov E. Memristive Effect in Ti 3 C 2 T x (MXene) Polyelectrolyte Multilayers. Chemphyschem 2023; 24:e202300187. [PMID: 37349254 DOI: 10.1002/cphc.202300187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 06/24/2023]
Abstract
The emerging novel class of two-dimensional materials - MХenes - have attracted significant research attention. However, there are only few reports on using the most prominent member of the MXene family, Ti3 C2 Tx , as an active material for memristive devices within a polyelectrolyte matrix and its deposition on inert electrodes like ITO and Pt. In this study, we systematically investigate Ti3 C2 Tx MXenes synthesized with two classical delamination agents, such as lithium chloride and tetramethylammonium hydroxide, to identify the most suitable candidate for memristive device applications. The characteristics of memristors based on the hybrid structures consisting of MXene-polyelectrolyte multilayers, specifically polyethyleneimine (PEI) and poly(sodium 4-styrenesulfonate) (PSS) are explored. The PEI(MXene)/PSS memristor exhibits a voltage threshold (VSET/RESET ) range of 1.5-2.0 V, enabling the transition from a high-resistive state (HRS) to a low-resistive state (LRS), along with a significant current switching ratio of approximately two orders of magnitude. The observed VSET/RESET difference of approximately 4 V is further supported by density functional theory (DFT) calculated redox potential. These findings underscore the potential of polyelectrolyte-based memristors, such as the in PEI-Ti3 C2 Tx -PSS system, in facilitating the development of highly functional, self-assembled memristive devices with diverse applications.
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Affiliation(s)
- Aleksandr Aglikov
- Infochemistry Scientific Center, ITMO University, Lomonosova str. 9, Saint Petersburg, 191002, Russian Federation
| | - Olga Volkova
- Infochemistry Scientific Center, ITMO University, Lomonosova str. 9, Saint Petersburg, 191002, Russian Federation
| | - Anna Bondar
- Infochemistry Scientific Center, ITMO University, Lomonosova str. 9, Saint Petersburg, 191002, Russian Federation
| | - Ivan Moskalenko
- Infochemistry Scientific Center, ITMO University, Lomonosova str. 9, Saint Petersburg, 191002, Russian Federation
| | - Alexander Novikov
- Infochemistry Scientific Center, ITMO University, Lomonosova str. 9, Saint Petersburg, 191002, Russian Federation
| | - Ekaterina V Skorb
- Infochemistry Scientific Center, ITMO University, Lomonosova str. 9, Saint Petersburg, 191002, Russian Federation
| | - Evgeny Smirnov
- Infochemistry Scientific Center, ITMO University, Lomonosova str. 9, Saint Petersburg, 191002, Russian Federation
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Rukhlyada KA, Matytcina VV, Baldina AA, Volkova O, Kozodaev DA, Barakova NV, Orlova OY, Smirnov E, Skorb EV. Universal Method Based on Layer-by-Layer Assembly for Aptamer-Based Sensors for Small-Molecule Detection. Langmuir 2023; 39:10820-10827. [PMID: 37490765 DOI: 10.1021/acs.langmuir.3c00822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
Development of a fast and accurate pesticide analysis system is a challenging task, as a large amount of commonly used pesticide has negative effects on humans' health. Detection of pesticide residues is crucial for food safety management and environmental protection. Aptamers─short single-stranded oligonucleotides (RNA or DNA) selected by aptamer selection method SELEX─can selectively bind to their target pesticide molecules with high affinity. Thus, in the present study, we developed an electrochemical biosensor based on aptamers to detect the commonly used pesticide, glyphosate. Carbon fibers were used as the platform to assemble polyelectrolyte layers with the incorporated aptamers selectively binding with glyphosate molecules for electrochemical detection. The best limit of detection of 0.3 μM was achieved at open-circuit potential measurements, which is comparable to the current need in detection of glyphosate. The developed method can be implemented into existing systems for the determination of pesticides on farms to control residual concentrations of glyphosate in soil and water.
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Affiliation(s)
- Ksenia A Rukhlyada
- ITMO University, Lomonosova str. 9, Saint Petersburg 191002, Russian Federation
| | | | - Anna A Baldina
- ITMO University, Lomonosova str. 9, Saint Petersburg 191002, Russian Federation
| | - Olga Volkova
- ITMO University, Lomonosova str. 9, Saint Petersburg 191002, Russian Federation
| | | | - Nadezhda V Barakova
- ITMO University, Lomonosova str. 9, Saint Petersburg 191002, Russian Federation
| | - Olga Yu Orlova
- ITMO University, Lomonosova str. 9, Saint Petersburg 191002, Russian Federation
| | - Evgeny Smirnov
- ITMO University, Lomonosova str. 9, Saint Petersburg 191002, Russian Federation
| | - Ekaterina V Skorb
- ITMO University, Lomonosova str. 9, Saint Petersburg 191002, Russian Federation
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Krat S, Selivanov R, Sorokin I, Podolyako F, Sergeev N, Alieva A, Bachurina D, Zaripova M, Isaenkova M, Fefelova E, Volkova O, Zaharov V. First study of lithium boron composite as plasma facing material. Nuclear Materials and Energy 2023. [DOI: 10.1016/j.nme.2023.101423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Belovezhets T, Kulemzin S, Volkova O, Najakshin A, Taranin A, Gorchakov A. Comparative Pre-Clinical Analysis of CD20-Specific CAR T Cells Encompassing 1F5-, Leu16-, and 2F2-Based Antigen-Recognition Moieties. Int J Mol Sci 2023; 24:ijms24043698. [PMID: 36835110 PMCID: PMC9966244 DOI: 10.3390/ijms24043698] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 01/28/2023] [Accepted: 02/10/2023] [Indexed: 02/15/2023] Open
Abstract
Over the past decade, CAR T cell therapy for patients with B cell malignancies has evolved from an experimental technique to a clinically feasible option. To date, four CAR T cell products specific for a B cell surface marker, CD19, have been approved by the FDA. Despite the spectacular rates of complete remission in r/r ALL and NHL patients, a significant proportion of patients still relapse, frequently with the CD19 low/negative tumor phenotype. To address this issue, additional B cell surface molecules such as CD20 were proposed as targets for CAR T cells. Here, we performed a side-by-side comparison of the activity of CD20-specific CAR T cells based on the antigen-recognition modules derived from the murine antibodies, 1F5 and Leu16, and from the human antibody, 2F2. Whereas CD20-specific CAR T cells differed from CD19-specific CAR T cells in terms of subpopulation composition and cytokine secretion, they displayed similar in vitro and in vivo potency.
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Affiliation(s)
| | - Sergey Kulemzin
- Almazov National Medical Research Centre, 197341 Saint Petersburg, Russia
| | - Olga Volkova
- Institute of Molecular and Cellular Biology of the SB RAS, 630090 Novosibirsk, Russia
| | - Alexander Najakshin
- Institute of Molecular and Cellular Biology of the SB RAS, 630090 Novosibirsk, Russia
| | - Alexander Taranin
- Institute of Molecular and Cellular Biology of the SB RAS, 630090 Novosibirsk, Russia
| | - Andrey Gorchakov
- Almazov National Medical Research Centre, 197341 Saint Petersburg, Russia
- Correspondence:
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Richter J, Bartzsch G, Scherbring S, Bolender A, Vollmer M, Mola J, Volkova O, Niendorf T. Metastable CrMnNi steels processed by laser powder bed fusion: experimental assessment of elementary mechanisms contributing to microstructure, properties and residual stress. Sci Rep 2022; 12:21862. [PMID: 36529751 PMCID: PMC9760645 DOI: 10.1038/s41598-022-26052-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022] Open
Abstract
The complex thermal history imposed by the laser-based powder bed fusion of metals (PBF-LB/M) process is known to promote the evolution of unique microstructures. In the present study, metastable CrMnNi steels with different nickel contents and, thus, different phase stabilities are manufactured by PBF-LB/M. Results clearly reveal that an adequate choice of materials will allow to tailor mechanical properties as well as residual stress states in the as-built material to eventually redundantize any thermal post-treatment. The chemical differences lead to different phase constitutions in as-built conditions and, thus, affect microstructure evolution and elementary deformation mechanisms upon deformation, i.e., twinning and martensitic transformation. Such alloys designed for additive manufacturing (AM) highlight the possibility to tackle well-known challenges in AM such as limited damage tolerance, porosity and detrimental residual stress states without conducting any post treatments, e.g., stress relieve and hot isostatic pressing. From the perspective of robust design of AM components, indeed it seems to be a very effective approach to adapt the material to the process characteristics of AM.
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Affiliation(s)
- J. Richter
- grid.5155.40000 0001 1089 1036Institute of Materials Engineering – Metallic Materials, University of Kassel, Moenchebergstrasse 3, 34125 Kassel, Germany
| | - G. Bartzsch
- grid.6862.a0000 0001 0805 5610Institute of Iron and Steel Technology, TU Bergakademie Freiberg, Leipziger Strasse 34, 09599 Freiberg/Saxony, Germany
| | - S. Scherbring
- grid.10854.380000 0001 0672 4366Faculty of Engineering and Computer Sciences, Materials Design and Structural Integrity Laboratory, Osnabrueck University of Applied Sciences, Albrechtstrasse 30, 49076 Osnabrueck, Germany
| | - A. Bolender
- grid.5155.40000 0001 1089 1036Institute of Materials Engineering – Metallic Materials, University of Kassel, Moenchebergstrasse 3, 34125 Kassel, Germany
| | - M. Vollmer
- grid.5155.40000 0001 1089 1036Institute of Materials Engineering – Metallic Materials, University of Kassel, Moenchebergstrasse 3, 34125 Kassel, Germany
| | - J. Mola
- grid.10854.380000 0001 0672 4366Faculty of Engineering and Computer Sciences, Materials Design and Structural Integrity Laboratory, Osnabrueck University of Applied Sciences, Albrechtstrasse 30, 49076 Osnabrueck, Germany
| | - O. Volkova
- grid.6862.a0000 0001 0805 5610Institute of Iron and Steel Technology, TU Bergakademie Freiberg, Leipziger Strasse 34, 09599 Freiberg/Saxony, Germany
| | - T. Niendorf
- grid.5155.40000 0001 1089 1036Institute of Materials Engineering – Metallic Materials, University of Kassel, Moenchebergstrasse 3, 34125 Kassel, Germany
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Zaboronok A, Khaptakhanova P, Uspenskii S, Bekarevich R, Mechetina L, Volkova O, Mathis BJ, Kanygin V, Ishikawa E, Kasatova A, Kasatov D, Shchudlo I, Sycheva T, Taskaev S, Matsumura A. Polymer-Stabilized Elemental Boron Nanoparticles for Boron Neutron Capture Therapy: Initial Irradiation Experiments. Pharmaceutics 2022; 14:pharmaceutics14040761. [PMID: 35456595 PMCID: PMC9032815 DOI: 10.3390/pharmaceutics14040761] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 01/24/2023] Open
Abstract
Sufficient boron-10 isotope (10B) accumulation by tumor cells is one of the main requirements for successful boron neutron capture therapy (BNCT). The inability of the clinically registered 10B-containing borophenylalanine (BPA) to maintain a high boron tumor concentration during neutron irradiation after a single injection has been partially solved by its continuous infusion; however, its lack of persistence has driven the development of new compounds that overcome the imperfections of BPA. We propose using elemental boron nanoparticles (eBNPs) synthesized by cascade ultrasonic dispersion and destruction of elemental boron microparticles and stabilized with hydroxyethylcellulose (HEC) as a core component of a novel boron drug for BNCT. These HEC particles are stable in aqueous media and show no apparent influence on U251, U87, and T98G human glioma cell proliferation without neutron beam irradiation. In BNCT experiments, cells incubated with eBNPs or BPA at an equivalent concentration of 40 µg 10B/mL for 24 h or control cells without boron were irradiated at an accelerator-based neutron source with a total fluence of thermal and epithermal neutrons of 2.685, 5.370, or 8.055 × 1012/cm2. The eBNPs significantly reduced colony-forming capacity in all studied cells during BNCT compared to BPA, verified by cell-survival curves fit to the linear-quadratic model and calculated radiobiological parameters, though the effect of both compounds differed depending on the cell line. The results of our study warrant further tumor targeting-oriented modifications of synthesized nanoparticles and subsequent in vivo BNCT experiments.
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Affiliation(s)
- Alexander Zaboronok
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan; (E.I.); (A.M.)
- Laboratory of Medical and Biological Problems of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia;
- Correspondence: ; Tel.: +81-29-853-3220; Fax: +81-29-853-3214
| | - Polina Khaptakhanova
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70, Profsoyuznaya Street, 117393 Moscow, Russia; (P.K.); (S.U.)
| | - Sergey Uspenskii
- Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, 70, Profsoyuznaya Street, 117393 Moscow, Russia; (P.K.); (S.U.)
| | - Raman Bekarevich
- The Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Advanced Microscopy Laboratory, Trinity College Dublin, The University of Dublin, D02 W272 Dublin, Ireland;
- Research Center for Advanced Measurement and Characterization, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba 305-0047, Japan
| | - Ludmila Mechetina
- Laboratory of Immunogenetics, Institute of Molecular and Cellular Biology, Novosibirsk, 8/2 Lavrentieva, 630090 Novosibirsk, Russia; (L.M.); (O.V.)
| | - Olga Volkova
- Laboratory of Immunogenetics, Institute of Molecular and Cellular Biology, Novosibirsk, 8/2 Lavrentieva, 630090 Novosibirsk, Russia; (L.M.); (O.V.)
| | - Bryan J. Mathis
- International Medical Center, University of Tsukuba Hospital, 2-1-1 Amakubo, Tsukuba 305-8576, Japan;
| | - Vladimir Kanygin
- Laboratory of Medical and Biological Problems of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia;
| | - Eiichi Ishikawa
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan; (E.I.); (A.M.)
| | - Anna Kasatova
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (D.K.); (I.S.); (T.S.); (S.T.)
- Laboratory of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia
| | - Dmitrii Kasatov
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (D.K.); (I.S.); (T.S.); (S.T.)
- Laboratory of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia
| | - Ivan Shchudlo
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (D.K.); (I.S.); (T.S.); (S.T.)
- Laboratory of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia
| | - Tatiana Sycheva
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (D.K.); (I.S.); (T.S.); (S.T.)
- Laboratory of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia
| | - Sergey Taskaev
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (D.K.); (I.S.); (T.S.); (S.T.)
- Laboratory of BNCT, Department of Physics, Novosibirsk State University, 1 Pirogov Street, 630090 Novosibirsk, Russia
| | - Akira Matsumura
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan; (E.I.); (A.M.)
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Kiriukhina G, Yakubovich O, Shvanskaya L, Volkov A, Dimitrova O, Simonov S, Volkova O, Vasiliev A. A Novel Mineral-like Copper Phosphate Chloride with a Disordered Guest Structure: Crystal Chemistry and Magnetic Properties. Materials (Basel) 2022; 15:ma15041411. [PMID: 35207951 PMCID: PMC8876330 DOI: 10.3390/ma15041411] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/07/2022] [Accepted: 02/10/2022] [Indexed: 02/01/2023]
Abstract
Novel copper phosphate chloride has been obtained under middle-temperature hydrothermal conditions. Its crystal structure was established based on the low-temperature X-ray diffraction data: Na2Li0.75(Cs,K)0.5[Cu5(PO4)4Cl]·3.5(H2O,OH), sp. gr. C2/m, a = 19.3951(8) Å, b = 9.7627(3) Å, c = 9.7383(4) Å, β = 99.329(4)°, T = 150 K, MoKα (λ = 0.71073 Å), R = 0.049. The crystal structure includes tetrameric copper clusters as the main building blocks, which are built of four CuO4Cl pyramids sharing apical Cl vertices. The clusters are combined through phosphate groups and additional copper-centered polyhedra to form two mostly ordered periodic layers. Between the layers and inside the framework channels, alkali ions, H2O molecules, or OH groups are statistically distributed. Na2Li0.75(Cs,K)0.5[Cu5(PO4)4Cl]·3.5(H2O,OH) is a synthetic modification of a sampleite-polymorph of the lavendulan mineral group and represents a new member in a mero-plesiotype series of copper phosphates and arsenates, for which the crystal structures contain two-periodic [Cu4X(TO4)4]∞ modules (T = As, P; X = Cl, O). Magnetically, this phase exhibits the phase transition at TC = 6.5 K, below which it possesses a weak ferromagnetic moment.
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Affiliation(s)
- Galina Kiriukhina
- Faculty of Geology, Lomonosov Moscow State University, 119991 Moscow, Russia; (G.K.); (O.Y.); (L.S.); (A.V.); (O.D.)
- Institute of Experimental Mineralogy RAS, 142432 Chernogolovka, Russia
| | - Olga Yakubovich
- Faculty of Geology, Lomonosov Moscow State University, 119991 Moscow, Russia; (G.K.); (O.Y.); (L.S.); (A.V.); (O.D.)
| | - Larisa Shvanskaya
- Faculty of Geology, Lomonosov Moscow State University, 119991 Moscow, Russia; (G.K.); (O.Y.); (L.S.); (A.V.); (O.D.)
- Quantum Functional Materials Laboratory, National University of Science and Technology “MISiS”, 119049 Moscow, Russia;
| | - Anatoly Volkov
- Faculty of Geology, Lomonosov Moscow State University, 119991 Moscow, Russia; (G.K.); (O.Y.); (L.S.); (A.V.); (O.D.)
| | - Olga Dimitrova
- Faculty of Geology, Lomonosov Moscow State University, 119991 Moscow, Russia; (G.K.); (O.Y.); (L.S.); (A.V.); (O.D.)
| | - Sergey Simonov
- Institute of Solid State Physics RAS, 142432 Chernogolovka, Russia;
| | - Olga Volkova
- Quantum Functional Materials Laboratory, National University of Science and Technology “MISiS”, 119049 Moscow, Russia;
- Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
- Institute of Physics and Technology, Ural Federal University, 620002 Ekaterinburg, Russia
| | - Alexander Vasiliev
- Quantum Functional Materials Laboratory, National University of Science and Technology “MISiS”, 119049 Moscow, Russia;
- Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
- Institute of Physics and Technology, Ural Federal University, 620002 Ekaterinburg, Russia
- Correspondence:
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Godeau XY, Andrianandrasana FJ, Volkova O, Szczepanski CR, Zenerino A, Montreuil O, Godeau RP, Kuzhir P, Godeau G. Investigation on dung beetle's (Heliocopris Hope, 1838) chitosan valorisation for hydrogel 3D printing. Int J Biol Macromol 2021; 199:172-180. [PMID: 34971640 DOI: 10.1016/j.ijbiomac.2021.12.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/01/2021] [Accepted: 12/12/2021] [Indexed: 11/19/2022]
Abstract
Biopolymers and their derivatives are materials with increasing interest for industry and especially for sustainable engineering development. Among such kind of materials, carbohydrate polymer like highly deacetylated chitin (chitosan) is widely used for a wide range of applications, including material and biomedical developments. The majority of industrially produced chitosan is based on chitin extracted from crustacean exoskeleton. However, with increase of interest on this material, chitosan's production will rapidly become insufficient and other species should be investigated as new sources of chitosan. In the present work, we focus on the preparation of chitosan from giant dung beetles (Genus Heliocopris, Hope, 1838). This genus was chosen to show the possibility to take animals that develop and leave near dejection and valuate them for material applications. This work includes all the chitosan extraction procedures, chitosan characterisation IR, SEM, NMR, ash content, and deacetylation degree. Finally, the prepared carbohydrate polymer is used to form hydrogel. The prepared gel has been characterised and used for 3D printing, to show the compatibility of extracted chitosan with biomaterial application.
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Affiliation(s)
| | - Freddy Jocelyne Andrianandrasana
- Université Côte d'Azur, IMREDD, 06200 Nice, France; Université Côte d'Azur, CNRS UMR 7010 INPHYNI, Parc Valrose Nice, 06108, France
| | - Olga Volkova
- Université Côte d'Azur, CNRS UMR 7010 INPHYNI, Parc Valrose Nice, 06108, France
| | - Caroline R Szczepanski
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA
| | | | - Olivier Montreuil
- UMR 7179 MNHN/CNRS, MECADEV, Muséum National d'Histoire Naturelle, Entomologie, CP 50, 45 rue Buffon, 75231 Paris cedex 05, France
| | - René-Paul Godeau
- Université Côte d'Azur, IMREDD, 06200 Nice, France; Université Côte d'Azur, CNRS UMR 7010 INPHYNI, Parc Valrose Nice, 06108, France
| | - Pavel Kuzhir
- Université Côte d'Azur, CNRS UMR 7010 INPHYNI, Parc Valrose Nice, 06108, France
| | - Guilhem Godeau
- Université Côte d'Azur, IMREDD, 06200 Nice, France; Université Côte d'Azur, CNRS UMR 7010 INPHYNI, Parc Valrose Nice, 06108, France.
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Zaboronok A, Taskaev S, Volkova O, Mechetina L, Kasatova A, Sycheva T, Nakai K, Kasatov D, Makarov A, Kolesnikov I, Shchudlo I, Bykov T, Sokolova E, Koshkarev A, Kanygin V, Kichigin A, Mathis BJ, Ishikawa E, Matsumura A. Gold Nanoparticles Permit In Situ Absorbed Dose Evaluation in Boron Neutron Capture Therapy for Malignant Tumors. Pharmaceutics 2021; 13:pharmaceutics13091490. [PMID: 34575566 PMCID: PMC8466622 DOI: 10.3390/pharmaceutics13091490] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 11/24/2022] Open
Abstract
Boron neutron capture therapy (BNCT) is an anticancer modality realized through 10B accumulation in tumor cells, neutron irradiation of the tumor, and decay of boron atoms with the release of alpha-particles and lithium nuclei that damage tumor cell DNA. As high-LET particle release takes place inside tumor cells absorbed dose calculations are difficult, since no essential extracellular energy is emitted. We placed gold nanoparticles inside tumor cells saturated with boron to more accurately measure the absorbed dose. T98G cells accumulated ~50 nm gold nanoparticles (AuNPs, 50 µg gold/mL) and boron-phenylalanine (BPA, 10, 20, 40 µg boron-10/mL), and were irradiated with a neutron flux of 3 × 108 cm−2s−1. Gamma-rays (411 keV) emitted by AuNPs in the cells were measured by a spectrometer and the absorbed dose was calculated using the formula D = (k × N × n)/m, where D was the absorbed dose (GyE), k—depth-related irradiation coefficient, N—number of activated gold atoms, n—boron concentration (ppm), and m—the mass of gold (g). Cell survival curves were fit to the linear-quadratic (LQ) model. We found no influence from the presence of the AuNPs on BNCT efficiency. Our approach will lead to further development of combined boron and high-Z element-containing compounds, and to further adaptation of isotope scanning for BNCT dosimetry.
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Affiliation(s)
- Alexander Zaboronok
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Ibaraki, Japan; (E.I.); (A.M.)
- Department of Physics, Novosibirsk State University, 1 Pirogov Str., 630090 Novosibirsk, Russia; (S.T.); (E.S.); (A.K.); (V.K.)
- Correspondence: ; Tel.: +81-29-853-3220; Fax: +81-29-853-3214
| | - Sergey Taskaev
- Department of Physics, Novosibirsk State University, 1 Pirogov Str., 630090 Novosibirsk, Russia; (S.T.); (E.S.); (A.K.); (V.K.)
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (T.S.); (D.K.); (A.M.); (I.K.); (I.S.); (T.B.); (A.K.)
| | - Olga Volkova
- Laboratory of Immunogenetics, Institute of Molecular and Cell Biology, 8/2 Lavrentieva, 630090 Novosibirsk, Russia; (O.V.); (L.M.)
| | - Ludmila Mechetina
- Laboratory of Immunogenetics, Institute of Molecular and Cell Biology, 8/2 Lavrentieva, 630090 Novosibirsk, Russia; (O.V.); (L.M.)
| | - Anna Kasatova
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (T.S.); (D.K.); (A.M.); (I.K.); (I.S.); (T.B.); (A.K.)
| | - Tatiana Sycheva
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (T.S.); (D.K.); (A.M.); (I.K.); (I.S.); (T.B.); (A.K.)
| | - Kei Nakai
- Department of Radiation Oncology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Ibaraki, Japan;
| | - Dmitrii Kasatov
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (T.S.); (D.K.); (A.M.); (I.K.); (I.S.); (T.B.); (A.K.)
| | - Aleksandr Makarov
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (T.S.); (D.K.); (A.M.); (I.K.); (I.S.); (T.B.); (A.K.)
| | - Iaroslav Kolesnikov
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (T.S.); (D.K.); (A.M.); (I.K.); (I.S.); (T.B.); (A.K.)
| | - Ivan Shchudlo
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (T.S.); (D.K.); (A.M.); (I.K.); (I.S.); (T.B.); (A.K.)
| | - Timofey Bykov
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (T.S.); (D.K.); (A.M.); (I.K.); (I.S.); (T.B.); (A.K.)
| | - Evgeniia Sokolova
- Department of Physics, Novosibirsk State University, 1 Pirogov Str., 630090 Novosibirsk, Russia; (S.T.); (E.S.); (A.K.); (V.K.)
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (T.S.); (D.K.); (A.M.); (I.K.); (I.S.); (T.B.); (A.K.)
| | - Alexey Koshkarev
- Department of Physics, Novosibirsk State University, 1 Pirogov Str., 630090 Novosibirsk, Russia; (S.T.); (E.S.); (A.K.); (V.K.)
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (T.S.); (D.K.); (A.M.); (I.K.); (I.S.); (T.B.); (A.K.)
| | - Vladimir Kanygin
- Department of Physics, Novosibirsk State University, 1 Pirogov Str., 630090 Novosibirsk, Russia; (S.T.); (E.S.); (A.K.); (V.K.)
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (T.S.); (D.K.); (A.M.); (I.K.); (I.S.); (T.B.); (A.K.)
| | - Aleksandr Kichigin
- Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sciences, 11 Lavrentieva, 630090 Novosibirsk, Russia; (A.K.); (T.S.); (D.K.); (A.M.); (I.K.); (I.S.); (T.B.); (A.K.)
| | - Bryan J. Mathis
- International Medical Center, University of Tsukuba Hospital, 2-1-1 Amakubo, Tsukuba 305-8576, Ibaraki, Japan;
| | - Eiichi Ishikawa
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Ibaraki, Japan; (E.I.); (A.M.)
| | - Akira Matsumura
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Ibaraki, Japan; (E.I.); (A.M.)
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Glybochko P, Fomin V, Avdeev S, Moiseev S, Yavorovskiy A, Brovko M, Umbetova K, Aliev V, Bulanova E, Bondarenko I, Volkova O, Gaynitdinova V, Gneusheva T, Dubrovin K, Kapustina V, Kraeva V, Merzhoeva Z, Nuralieva G, Nogtev P, Panasyuk V, Politov M, Popov A, Popova E, Raspopina N, Royuk V, Sorokin Y, Trushenko N, Khalikova E, Tsareva N, Chikina S, Chichkova N, Akulkina L, Bulanov N, Ermolova L, Zykova A, Kitbalian A, Moiseev A, Potapov P, Tao E, Sholomova V, Shchepalina A, Yakovleva A. Clinical characteristics of 1007 intensive care unitpatients with SARS-CoV-2 pneumonia. ACTA ACUST UNITED AC 2020. [DOI: 10.32756/0869-5490-2020-2-21-29] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Vishnevskii K, Dudash E, Domashenko O, Volkova O, Turbasova E, Frolova E. P1066OBJECTIVIZATION OF “DRY WEIGHT” CLINICAL ASSESSMENT IN HEMODIALYSIS PATIENTS BY MULTI-FREQUENCY BIOIMPEDANCE SPECTROSCOPY WITH VECTOR ANALYSIS. Nephrol Dial Transplant 2020. [DOI: 10.1093/ndt/gfaa142.p1066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background and Aims
Hydration status is an important prognostic factor in patients receiving hemodialysis (HD). An accurate hydration status assessment and determination of the euvolemia (“dry weight”, DW) target value is a difficult task and need to be objectified by instrumental methods. One of these methods is the vector analysis of multi-frequency bio-impedance spectroscopy (MBIS). The aim of the study was to assess the effect of DW correction according to the results of a vector analysis of MBIS on the blood pressure dynamics and the frequency of intra-dialysis complications.
Method
Total 104 patients were included in the study. The mean age was 63±11 years, mean duration of renal replacement therapy was 91±68 months. Patients were randomly (block randomization) divided into the study (SG, N=52) or control (CG, N=52) groups. In the SG, the correction of DW performed according to the results of the MBIS vector analysis using the Bodystat MultiScan 5000 analyzer (Bodystat Ltd) with specially developed correction algorithm (figure). In the CG the correction of DW was carried out only according to clinical indicators. Within 3 months before and 3 months after the initial assessment of DW the blood pressure during HD and the number of intradialytic complications were recorded in all patients.
Results
In the SG, DW was increased in 13 patients by an average of 1.0±0.9 kg, decreased in 26 patients (-1.1±0.7 kg) and did not change in 13 patients. In the CG, DW increased on average by 1.3±0.9 kg in 19 patients, in 27 decreased (-1.2±0.8 kg) and in 2 did not change. In patients who had a history of increased blood pressure during dialysis, in SG the frequency of hypertension episodes decreased from 3.8 to 1.1 episodes per month (p=0.02), in contrast to CG (from 2.4 up to 2.3 episodes per month, p=0.87). Also, among patients initially prone to hypertension in SG, in contrast to CG, a decrease in systolic blood pressure was observed both before the HD (from 163±16 to 143±10 mm Hg, p=0.004) and after the HD (from 151±23 to 130±15 mmHg, p=0.02). No changes in the frequency of episodes of hypotension and diastolic blood pressure during HD were observed either in the study or in the control group
Conclusion
Objectification of the dry weight clinical assessment of in HD patients using multifrequency bioimpedance spectroscopy with vector analysis can help to reduce the complications rate and arterial hypertension severity.
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Affiliation(s)
- Konstantin Vishnevskii
- St. Petersburg State Healthcare Institution “City Hospital № 15”, Dialysis department, St.-Petersburg, Russia
| | - Ekaterina Dudash
- St. Petersburg State Healthcare Institution “City Hospital № 15”, Dialysis department, St.-Petersburg, Russia
| | - Olga Domashenko
- St. Petersburg State Healthcare Institution “City Hospital № 15”, Dialysis department, St.-Petersburg, Russia
| | - Olga Volkova
- St. Petersburg State Healthcare Institution “City Hospital № 15”, Dialysis department, St.-Petersburg, Russia
| | - Elena Turbasova
- St. Petersburg State Healthcare Institution “City Hospital № 15”, Dialysis department, St.-Petersburg, Russia
| | - Ekaterina Frolova
- St. Petersburg State Healthcare Institution “City Hospital № 15”, Dialysis department, St.-Petersburg, Russia
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12
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Bossis G, Volkova O, Grasselli Y, Gueye O. Discontinuous shear thickening in concentrated suspensions. Philos Trans A Math Phys Eng Sci 2019; 377:20180211. [PMID: 30827207 PMCID: PMC6460067 DOI: 10.1098/rsta.2018.0211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/26/2018] [Indexed: 05/29/2023]
Abstract
The flow of concentrated suspensions of solid particles can be suddenly blocked by the formation of a percolated network of frictional contacts above a critical value of the applied stress. Suspensions of magnetic particles coated with a superplastifier molecule were shown to produce a strong jamming transition. We find that, for these suspensions with an abrupt discontinuous shear thickening, a model using the divergence of the viscosity at a volume fraction that depends on the applied stress does not well describe the observed behaviour both below and above the critical stress. At a constant applied stress above the critical one, we have a stick-slip behaviour of the shear rate whose period can be predicted and scaled as the square root of the relaxation time of the frictional contacts. The application of a small magnetic field allows us to continuously decrease the critical shear rate, and it appears that the yield stress induced by the magnetic field does not contribute to the jamming transition. Finally, it is shown that this jamming transition also appears in the extrusion of a suspension through a die, but with a much slower dynamics than in the case of stress imposed on a rotational geometry. This article is part of the theme issue 'Heterogeneous materials: metastable and non-ergodic internal structures'.
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Affiliation(s)
- Georges Bossis
- Laboratory InPhyNi, Institute of Physics of Nice, CNRS, University of Nice Sophia-Antipolis, Nice, France
| | - Olga Volkova
- Laboratory InPhyNi, Institute of Physics of Nice, CNRS, University of Nice Sophia-Antipolis, Nice, France
| | - Yan Grasselli
- Laboratory InPhyNi, Institute of Physics of Nice, CNRS, University of Nice Sophia-Antipolis, Nice, France
- Université Côte d'Azur, SKEMA Business School, 60 rue Dostoievski, CS30085, 06902 Sophia Antipolis, France
| | - Oumar Gueye
- Laboratory InPhyNi, Institute of Physics of Nice, CNRS, University of Nice Sophia-Antipolis, Nice, France
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Gabarayeva N, Polevova S, Grigorjeva V, Severova E, Volkova O, Blackmore S. Suggested mechanisms underlying pollen wall development in Ambrosia trifida (Asteraceae: Heliantheae). Protoplasma 2019; 256:555-574. [PMID: 30341717 DOI: 10.1007/s00709-018-1320-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 10/11/2018] [Indexed: 05/05/2023]
Abstract
By a detailed ontogenetic study of Ambrosia trifida pollen, tracing each stage of development with TEM, we aim to understand the establishment of the pollen wall and to unravel the mechanisms underlying sporoderm development. The main steps of exine ontogeny in Ambrosia trifida, observed in the microspore periplasmic space, are as follows: spherical units, gradually transforming into columns, then to rod-like units; the appearance of the initial reticulate tectum; growth of columellae under the tectum and initial sporopollenin accumulation on them; the appearance of the endexine lamellae, first in fragments, then in long laminae; the cessation of the glycocalyx growth and its detachment from the plasma membrane, resulting in the appearance of gaps; massive accumulation of sporopollenin on the tectum, columellae, and endexine, and the appearance of the foot layer at the young post-tetrad stage, accompanied by establishment of caveae in sites of the former gaps; and final massive sporopollenin accumulation. This sequence of developmental events in all probability corresponds to the sequence of self-assembling micellar mesophases. This gives (together with earlier findings and experimental modeling of exine) strong evidence that the genome and self-assembly share control of exine formation. In this sense, self-assembly itself can be seen as an inherent mechanism of evolution.
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Affiliation(s)
- Nina Gabarayeva
- Komarov Botanical Institute, Russian Academy of Sciences, Popov St. 2, St. Petersburg, Russia, 197376.
| | | | - Valentina Grigorjeva
- Komarov Botanical Institute, Russian Academy of Sciences, Popov St. 2, St. Petersburg, Russia, 197376
| | - Elena Severova
- Moscow State University, Leninski Gory, 1, Moscow, Russia, 119991
| | - Olga Volkova
- Moscow State University, Leninski Gory, 1, Moscow, Russia, 119991
| | - Stephen Blackmore
- Royal Botanic Garden Edinburgh, 20a Inverleith Row, Edinburgh, EH3 5LR, UK
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Stepanov K, Mukhin D, Volkova O. Experimental investigation of a plate heat exchanger model for lithium bromide absorption chillers: first results. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201919600033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In this paper the results of thermal-hydraulic tests of a sample of a perspective plate heat exchanger under the conditions of LBAHT is described. Working opportunity of the sample working under conditions of LBAHT has been confirmed by this research.
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Chikaev A, Gorchakov A, Kulemzin S, Belovezhets T, Matvienko D, Volkova O, Taranin A. CAR-modified natural killer cell line expressing CD47/SIRPa blockers as a combined approach for solid cancer therapy. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy485.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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16
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Sato E, Zaboronok A, Yamamoto T, Nakai K, Taskaev S, Volkova O, Mechetina L, Taranin A, Kanygin V, Isobe T, Mathis BJ, Matsumura A. Radiobiological response of U251MG, CHO-K1 and V79 cell lines to accelerator-based boron neutron capture therapy. J Radiat Res 2018; 59:101-107. [PMID: 29281044 PMCID: PMC5950924 DOI: 10.1093/jrr/rrx071] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 10/05/2017] [Indexed: 06/07/2023]
Abstract
In the current article, we provide in vitro efficacy evaluation of a unique accelerator-based neutron source, constructed at the Budker Institute of Nuclear Physics (Novosibirsk, Russian Federation), for boron neutron capture therapy (BNCT), which is particularly effective in the case of invasive cancers. U251MG, CHO-K1 and V79 cells were incubated and irradiated in various concentrations of boric acid with epithermal neutrons for 2-3 h in a plexiglass phantom, using 2.0 MeV proton energy and 1.5-3.0 mA proton current, resulting in a neutron fluence of 2.16 × 1012 cm-2. The survival curves of cells loaded with boron were normalized to those irradiated without boron (to exclude the influence of the fast neutron and gamma dose components) and fit to the linear-quadratic (LQ) model. Colony formation assays showed the following cell survival rates (means ± SDs): CHO-K1: 0.348 ± 0.069 (10 ppm), 0.058 ± 0.017 (20 ppm), 0.018 ± 0.005 (40 ppm); V79: 0.476 ± 0.160 (10 ppm), 0.346 ± 0.053 (20 ppm), 0.078 ± 0.015 (40 ppm); and U251MG: 0.311 ± 0.061 (10 ppm), 0.131 ± 0.022 (20 ppm), 0.020 ± 0.010 (40 ppm). The difference between treated cells and controls was significant in all cases (P < 0.01) and confirmed that the neutron source and irradiation regimen were sufficient for control over cell colony formation. We believe our study will serve as a model for ongoing in vitro experiments on neutron capture therapy to advance in this area for further development of accelerator-based BNCT into the clinical phase.
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Affiliation(s)
- Eisuke Sato
- Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
- Faculty of Health Sciences, Kyorin University, 5-4-1 Shimorenjaku, Mitaka, Tokyo, 181-8612, Japan
| | - Alexander Zaboronok
- Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Tetsuya Yamamoto
- Department of Neurosurgery, Graduate School of Medicine, Yokohama City University, 3-9 Fukuura, Kanazawa, Yokohama, 236-0004, Japan
| | - Kei Nakai
- Ibaraki Prefectural University of Health Sciences, 4669-2 Ami, Inashiki, Ibaraki, 300-0331, Japan
| | - Sergey Taskaev
- Budker Institute of Nuclear Physics, Lavrentieva prosp.11, Novosibirsk, 630090, Russian Federation
- Novosibirsk State University, Pirogova str. 2, Novosibirsk, 630090, Russian Federation
| | - Olga Volkova
- Novosibirsk State University, Pirogova str. 2, Novosibirsk, 630090, Russian Federation
- Institute of Molecular and Cell Biology, Lavrentieva prosp.8/2, Novosibirsk, 630090, Russian Federation
| | - Ludmila Mechetina
- Novosibirsk State University, Pirogova str. 2, Novosibirsk, 630090, Russian Federation
- Institute of Molecular and Cell Biology, Lavrentieva prosp.8/2, Novosibirsk, 630090, Russian Federation
| | - Alexander Taranin
- Novosibirsk State University, Pirogova str. 2, Novosibirsk, 630090, Russian Federation
- Institute of Molecular and Cell Biology, Lavrentieva prosp.8/2, Novosibirsk, 630090, Russian Federation
| | - Vladimir Kanygin
- Budker Institute of Nuclear Physics, Lavrentieva prosp.11, Novosibirsk, 630090, Russian Federation
- Novosibirsk State University, Pirogova str. 2, Novosibirsk, 630090, Russian Federation
- Novosibirsk State Medical University, Krasny prosp. 52, Novosibirsk, 630091, Russian Federation
| | - Tomonori Isobe
- Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Bryan J Mathis
- Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Akira Matsumura
- Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
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Reshetnikova E, Guselnikov S, Volkova O, Baranov K, Taranin A, Mechetina L. B cell-specific protein FCRLA is expressed by plasmacytoid dendritic cells in humans. Cytometry B Clin Cytom 2018; 94:683-687. [PMID: 29236355 DOI: 10.1002/cyto.b.21611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 11/14/2017] [Accepted: 12/11/2017] [Indexed: 11/11/2022]
Abstract
BACKGROUND Fc receptor-like A (FCRLA) is a unique member of a family of Fc receptor like-molecules that lacks a transmembrane region and is an ER-resident protein. In mice and humans, FCRLA has been known as a B cell specific protein. We report here that, in humans, FCRLA is also expressed in a subpopulation of plasmacytoid dendritic cells (pDCs). METHODS Human peripheral blood mononuclear cells (PBMC), splenocytes, and tonsillar cells were stained for lineage markers followed by fixation/saponin permeabilization and intracellular staining for FCRLA, and then analyzed by flow cytometry with CD123 and CD303 used as pDC markers. RESULTS We conducted an extensive flow cytometric analysis of a rare population of CD19-FCRLA+ cells found for the first time in human lymphoid tissues that we assigned to pDCs as they were lin-/CD123+/CD303+. FCRLA expression in human pDCs was further confirmed by the RT-PCR analysis of cDNA of pDCs isolated from the peripheral blood of a healthy donor. FCRLA-positive pDCs expressed a lower level of HLA-DR than their FCRLA-negative counterparts. CONCLUSIONS FCRLA has long been viewed as a B cell specific protein, and this is the first time its expression has also been shown in human pDCs. © 2017 International Clinical Cytometry Society.
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Affiliation(s)
- Evdokiya Reshetnikova
- Laboratory of Immunogenetics, Institute of Molecular and Cellular Biology, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Sergey Guselnikov
- Laboratory of Immunogenetics, Institute of Molecular and Cellular Biology, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
| | - Olga Volkova
- Laboratory of Immunogenetics, Institute of Molecular and Cellular Biology, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Konstantin Baranov
- Laboratory of Immunogenetics, Institute of Molecular and Cellular Biology, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Alexander Taranin
- Laboratory of Immunogenetics, Institute of Molecular and Cellular Biology, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
| | - Ludmila Mechetina
- Laboratory of Immunogenetics, Institute of Molecular and Cellular Biology, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.,Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
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Chareev D, Ovchenkov Y, Shvanskaya L, Kovalskii A, Abdel-Hafiez M, Trainer DJ, Lechner EM, Iavarone M, Volkova O, Vasiliev A. Single crystal growth, transport and scanning tunneling microscopy and spectroscopy of FeSe1−xSx. CrystEngComm 2018. [DOI: 10.1039/c8ce00074c] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
“Ampoule in ampoule” design to grow single crystals of FeSe1−xSx.
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Affiliation(s)
- Dmitriy Chareev
- RAS
- Institute of Experimental Mineralogy
- Chernogolovka 123456
- Russia
- Ural Federal University
| | | | - Larisa Shvanskaya
- Lomonosov Moscow State University
- Moscow 119991
- Russia
- National University of Science and Technology “MISiS”
- Moscow 119049
| | - Andrey Kovalskii
- National University of Science and Technology “MISiS”
- Moscow 119049
- Russia
| | - Mahmoud Abdel-Hafiez
- National University of Science and Technology “MISiS”
- Moscow 119049
- Russia
- Goethe University Frankfurt
- Frankfurt am Main 60438
| | | | | | | | - Olga Volkova
- Ural Federal University
- Ekaterinburg 620002
- Russia
- Lomonosov Moscow State University
- Moscow 119991
| | - Alexander Vasiliev
- Lomonosov Moscow State University
- Moscow 119991
- Russia
- National University of Science and Technology “MISiS”
- Moscow 119049
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Antipov E, Alekseeva A, Drozhzhin O, Volkova O, Vasiliev A, Chareev D, Grin J. Tc-enhancement of Fe 1+δSe by electrochemical lithium intercalation. Acta Crystallogr A Found Adv 2017. [DOI: 10.1107/s2053273317087058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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20
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Koval O, Volkova O, Kulemzin S, Gorchakov A, Tkachenko A, Nushtaeva A, Kuligina E, Richter V, Taranin A. NK-cell based delivery of anticancer therapeutics. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx711.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Cherepynska Y, Volkova O, Riabokon E, Baglyk T. ANALYSIS OF THE LONG-TERM CLINICAL RESULTS OF USING 940 μm DIODE LASER IN PATIENTS WITH GENERALIZED MODERATE CHRONIC PERIODONTITIS. Georgian Med News 2017:24-30. [PMID: 28972479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The experience of using a diode laser with a wavelength of 940 μm in the treatment of patients with generalized periodontitis of moderate severity of chronic course is presented. 30 patients were examined, including 17 men (56.6%), and 13 women (43.4%) aged 35-44 with chronic generalized periodontitis of moderate severity. It is concluded that the use of diode laser of 940 μm in the complex therapy of patients with chronic generalized periodontitis of moderate severity is clinically justified and an effective auxiliary method of treatment. The long-term results of the clinical study indicate that the additional use of a diode laser allows for more stable remission and a greater reduction in the volume of surgical interventions compared with control group.
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Affiliation(s)
| | - O Volkova
- Kharkiv National Medical University, Ukraine
| | - E Riabokon
- Kharkiv National Medical University, Ukraine
| | - T Baglyk
- Kharkiv National Medical University, Ukraine
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22
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Volkova O, Severova E. A comparison of modern pollen rain collected by Hirst type and Tauber traps in Moscow, Russia. EQ 2017. [DOI: 10.12775/eq.2017.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Nosova M, Severova E, Volkova O. Spruce and broadleaved trees pollen percentages and PAR values in the European part of Russia: 9 years of pollen trap monitoring implemented to the fossil data. EQ 2017. [DOI: 10.12775/eq.2017.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Vishnevskii K, Volkova O, Zemchenkov A, Suchkov V, Smirnov A. MP516CORRECTION OF ACIDOSIS REDUCES THE HYPERPHOSPHATEMIA SEVERITY IN HEMODIALYSIS PATIENTS. Nephrol Dial Transplant 2017. [DOI: 10.1093/ndt/gfx175.mp516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Volkova O, Ryabokon E, Magda I, Shckorbatov Y. IMPACT OF SMOKING HABITS ON THE STATE OF CHROMATIN AND MORPHOLOGY OF BUCCAL EPITHELIAL CELLS AMONG MEDICAL STUDENTS. Georgian Med News 2017:111-115. [PMID: 28252440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The cells of buccal epithelium were investigated in groups of smoking and non-smoking students. Cell samples were collected by scraping with blunt sterile spatula, stained with orcein and photographed. The smoking of cigarettes and hookah induces significant decrease in nuclear and cell perimeter and cell area in cells of buccal epithelium. Smoking of hookah induces, besides, the heterochromatization in cell nuclei and the decrease of nuclear area. The data obtained indicate stress reaction in cells (heterochromatinization) and apoptosis-related changes in cells (decrease of nuclear and cell perimeter and cell area). These data show unfavorable effects of smoking cigarettes and even more harmful effect of hookah smoking.
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Affiliation(s)
- O Volkova
- Kharkiv National Medical University; S.P. Grigoriev Institute for Medical Radiology of National Academy of Medical Science of Ukraine; V.N.Karazin Kharkiv National University, Ukraine
| | - E Ryabokon
- Kharkiv National Medical University; S.P. Grigoriev Institute for Medical Radiology of National Academy of Medical Science of Ukraine; V.N.Karazin Kharkiv National University, Ukraine
| | - I Magda
- Kharkiv National Medical University; S.P. Grigoriev Institute for Medical Radiology of National Academy of Medical Science of Ukraine; V.N.Karazin Kharkiv National University, Ukraine
| | - Y Shckorbatov
- Kharkiv National Medical University; S.P. Grigoriev Institute for Medical Radiology of National Academy of Medical Science of Ukraine; V.N.Karazin Kharkiv National University, Ukraine
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Volkova O, Guselnikov S, Mechetina L, Chikaev N, Baranov K, Kulemzin S, Reshetnikova E, Najakshin A, Taranin A. Development and characterization of domain-specific monoclonal antibodies produced against human SLAMF9. Monoclon Antib Immunodiagn Immunother 2015; 33:209-14. [PMID: 25170999 DOI: 10.1089/mab.2014.0010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
SLAMF9 is a member of the signaling lymphocyte-activating molecule (SLAM) immunoreceptor family. The SLAM family receptors are expressed in a broad range of immune cells and play an important role in immunity. To date, SLAMF9 is the least studied member of this family. Its ligand, signaling properties, and cells on whose surface it is expressed are unknown. We generated hybridoma clones 6E11 and 7G5 secreting monoclonal antibodies specific to human SLAMF9. BALB/c mice were immunized with Escherichia coli-expressed purified SLAMF9 protein; splenocytes from these mice were fused with mouse myeloma cell line NS-1. Based on isotyping of the MAbs, clone 6E11 was referred to the IgG1 subclass, while 7G5 to IgG2b. The specificity of these MAbs was assessed by ELISA, immunoblotting, immunohistochemistry, and flow cytometry. According to the results of epitope analysis, clone 6E11 reacts with the C2-like domain, whereas 7G5 is specific to the V-like domain of the SLAMF9 molecule. The generated MAbs were demonstrated to be applicable in various immunochemical analyses. They may be useful tools in studies clarifying the expression and function of human SLAMF9.
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Affiliation(s)
- Olga Volkova
- 1 Institute of Molecular and Cellular Biology , Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
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Taniguchi Y, Takahashi Y, Toba T, Yamada S, Yokoi K, Kobayashi S, Okajima S, Shimane A, Kawai H, Yasaka Y, Smanio P, Oliveira MA, Machado L, Cestari P, Medeiros E, Fukuzawa S, Okino S, Ikeda A, Maekawa J, Ichikawa S, Kuroiwa N, Yamanaka K, Igarashi A, Inagaki M, Patel K, Mahan M, Ananthasubramaniam K, Mouden M, Yokota S, Ottervanger J, Knollema S, Timmer J, Jager P, Padron K, Peix A, Cabrera L, Pena Bofill V, Valera D, Rodriguez Nande L, Carrillo Hernandez R, Mena Esnard E, Fernandez Columbie Y, Bertella E, Baggiano A, Mushtaq S, Segurini C, Loguercio M, Conte E, Beltrama V, Petulla' M, Andreini D, Pontone G, Guzic Salobir B, Dolenc Novak M, Jug B, Kacjan B, Novak Z, Vrtovec M, Mushtaq S, Pontone G, Bertella E, Conte E, Segurini C, Volpato V, Baggiano A, Formenti A, Pepi M, Andreini D, Ajanovic R, Husic-Selimovic A, Zujovic-Ajanovic A, Mlynarski R, Mlynarska A, Golba K, Sosnowski M, Ameta D, Goyal M, Kumar D, Chandra S, Sethi R, Puri A, Dwivedi SK, Narain VS, Saran RK, Nekolla S, Rischpler C, Nicolosi S, Langwieser N, Dirschinger R, Laugwitz K, Schwaiger M, Goral JL, Napoli J, Forcada P, Zucchiatti N, Damico A, Damico A, Olivieri D, Lavorato M, Dubesarsky E, Montana O, Salgado C, Jimenez-Heffernan A, Ramos-Font C, Lopez-Martin J, Sanchez De Mora E, Lopez-Aguilar R, Manovel A, Martinez A, Rivera F, Soriano E, Maroz-Vadalazhskaya N, Trisvetova E, Vrublevskaya O, Abazid R, Kattea M, Saqqah H, Sayed S, Smettei O, Winther S, Svensson M, Birn H, Jorgensen H, Botker H, Ivarsen P, Bottcher M, Maaniitty T, Stenstrom I, Saraste A, Pikkarainen E, Uusitalo V, Ukkonen H, Kajander S, Bax J, Knuuti J, Choi T, Park H, Lee C, Lee J, Seo Y, Cho Y, Hwang E, Cho D, Sanchez Enrique C, Ferrera C, Olmos C, Jimenez - Ballve A, Perez - Castejon MJ, Fernandez C, Vivas D, Vilacosta I, Nagamachi S, Onizuka H, Nishii R, Mizutani Y, Kitamura K, Lo Presti M, Polizzi V, Pino P, Luzi G, Bellavia D, Fiorilli R, Madeo A, Malouf J, Buffa V, Musumeci F, Rosales S, Puente A, Zafrir N, Shochat T, Mats A, Solodky A, Kornowski R, Lorber A, Boemio A, Pellegrino T, Paolillo S, Piscopo V, Carotenuto R, Russo B, Pellegrino S, De Matteis G, Perrone-Filardi P, Cuocolo A, Piscopo V, Pellegrino T, Boemio A, Carotenuto R, Russo B, Pellegrino S, De Matteis G, Petretta M, Cuocolo A, Amirov N, Ibatullin M, Sadykov A A, Saifullina G, Ruano R, Diego Dominguez M, Rodriguez Gabella T, Diego Nieto A, Diaz Gonzalez L, Garcia-Talavera J, Sanchez Fernandez P, Leen A, Al Younis I, Zandbergen-Harlaar S, Verberne H, Gimelli A, Veltman C, Wolterbeek R, Bax J, Scholte A, Mooney D, Rosenblatt J, Dunn T, Vasaiwala S, Okuda K, Nakajima K, Nystrom K, Edenbrandt L, Matsuo S, Wakabayashi H, Hashimoto M, Kinuya S, Iric-Cupic V, Milanov S, Davidovic G, Zdravkovic V, Ashikaga K, Yoneyama K, Akashi Y, Shugushev Z, Maximkin D, Chepurnoy A, Volkova O, Baranovich V, Faibushevich A, El Tahlawi M, Elmurr A, Alzubaidi S, Sakrana A, Gouda M, El Tahlawi R, Sellem A, Melki S, Elajmi W, Hammami H, Okano M, Kato T, Kimura M, Funasako M, Nakane E, Miyamoto S, Izumi T, Haruna T, Inoko M, Massardo T, Swett E, Fernandez R, Vera V, Zhindon J, Fernandez R, Swett E, Vera V, Zhindon J, Alay R, Massardo T, Ohshima S, Nishio M, Kojima A, Tamai S, Kobayashi T, Murohara T, Burrell S, Van Rosendael A, Van Den Hoogen I, De Graaf M, Roelofs J, Kroft L, Bax J, Scholte A, Rjabceva I, Krumina G, Kalvelis A, Chanakhchyan F, Vakhromeeva M, Kankiya E, Koppes J, Knol R, Wondergem M, Van Der Ploeg T, Van Der Zant F, Lazarenko SV, Bruin VS, Pan XB, Declerck JM, Van Der Zant FM, Knol RJJ, Juarez-Orozco LE, Alexanderson E, Slart R, Tio R, Dierckx R, Zeebregts C, Boersma H, Hillege H, Martinez-Aguilar M, Jordan-Rios A, Christensen TE, Ahtarovski KA, Bang LE, Holmvang L, Soeholm H, Ghotbi AA, Andersson H, Ihlemann N, Kjaer A, Hasbak P, Gulya M, Lishmanov YB, Zavadovskii K, Lebedev D, Stahle M, Hellberg S, Liljenback H, Virta J, Metsala O, Yla-Herttuala S, Saukko P, Knuuti J, Saraste A, Roivainen A, Thackeray J, Wang Y, Bankstahl J, Wollert K, Bengel F, Saushkina Y, Evtushenko V, Minin S, Efimova I, Evtushenko A, Smishlyaev K, Lishmanov Y, Maslov L, Okuda K, Nakajima K, Kirihara Y, Sugino S, Matsuo S, Taki J, Hashimoto M, Kinuya S, Ahmadian A, Berman J, Govender P, Ruberg F, Miller E, Piriou N, Pallardy A, Valette F, Cahouch Z, Mathieu C, Warin-Fresse K, Gueffet J, Serfaty J, Trochu J, Kraeber-Bodere F, Van Dijk J, Mouden M, Ottervanger J, Van Dalen J, Jager P, Zafrir N, Ofrk H, Vaturi M, Shochat T, Hassid Y, Belzer D, Sagie A, Kornowski R, Kaminek M, Metelkova I, Budikova M, Koranda P, Henzlova L, Sovova E, Kincl V, Drozdova A, Jordan M, Shahid F, Teoh Y, Thamen R, Hara N, Onoguchi M, Hojyo O, Kawaguchi Y, Murai M, Udaka F, Matsuzawa Y, Bulugahapitiya DS, Avison M, Martin J, Liu YH, Wu J, Liu C, Sinusas A, Daou D, Sabbah R, Bouladhour H, Coaguila C, Aguade-Bruix S, Pizzi M, Romero-Farina G, Candell-Riera J, Castell-Conesa J, Patchett N, Sverdlov A, Miller E, Daou D, Sabbah R, Bouladhour H, Coaguila C, Smettei O, Abazid R, Boulaamayl El Fatemi S, Sallam L, Snipelisky D, Park J, Ray J, Shapiro B, Kostkiewicz M, Szot W, Holcman K, Lesniak-Sobelga A, Podolec P, Clerc O, Possner M, Liga R, Vontobel J, Mikulicic F, Graeni C, Benz D, Herzog B, Gaemperli O, Kaufmann P. Poster Session 1: Sunday 3 May 2015, 08:30-18:00 * Room: Poster Area. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Bouyoucef SE, Uusitalo V, Kamperidis V, De Graaf M, Maaniitty T, Stenstrom I, Broersen A, Scholte A, Saraste A, Bax J, Knuuti J, Furuhashi T, Moroi M, Awaya T, Masai H, Minakawa M, Kunimasa T, Fukuda H, Sugi K, Berezin A, Kremzer A, Clerc O, Kaufmann B, Possner M, Liga R, Vontobel J, Mikulicic F, Graeni C, Benz D, Kaufmann P, Buechel R, Ferreira M, Cunha M, Albuquerque A, Ramos D, Costa G, Lima J, Pego M, Peix A, Cisneros L, Cabrera L, Padron K, Rodriguez L, Heres F, Carrillo R, Mena E, Fernandez Y, Huizing E, Van Dijk J, Van Dalen J, Timmer J, Ottervanger J, Slump C, Jager P, Venuraju S, Jeevarethinam A, Yerramasu A, Atwal S, Mehta V, Lahiri A, Arjonilla Lopez A, Calero Rueda MJ, Gallardo G, Fernandez-Cuadrado J, Hernandez Aceituno D, Sanchez Hernandez J, Yoshida H, Mizukami A, Matsumura A, Smettei O, Abazid R, Sayed S, Mlynarska A, Mlynarski R, Golba K, Sosnowski M, Winther S, Svensson M, Jorgensen H, Bouchelouche K, Gormsen L, Holm N, Botker H, Ivarsen P, Bottcher M, Cortes CM, Aramayo G E, Daicz M, Casuscelli J, Alaguibe E, Neira Sepulveda A, Cerda M, Ganum G, Embon M, Vigne J, Enilorac B, Lebasnier A, Valancogne L, Peyronnet D, Manrique A, Agostini D, Menendez D, Rajpal S, Kocherla C, Acharya M, Reddy P, Sazonova I, Ilushenkova Y, Batalov R, Rogovskaya Y, Lishmanov Y, Popov S, Varlamova N, Prado Diaz S, Jimenez Rubio C, Gemma D, Refoyo Salicio E, Valbuena Lopez S, Moreno Yanguela M, Torres M, Fernandez-Velilla M, Lopez-Sendon J, Guzman Martinez G, Puente A, Rosales S, Martinez C, Cabada M, Melendez G, Ferreira R, Gonzaga A, Santos J, Vijayan S, Smith S, Smith M, Muthusamy R, Takeishi Y, Oikawa M, Goral JL, Napoli J, Montana O, Damico A, Quiroz M, Damico A, Forcada P, Schmidberg J, Zucchiatti N, Olivieri D, Jeevarethinam A, Venuraju S, Dumo A, Ruano S, Rakhit R, Davar J, Nair D, Cohen M, Darko D, Lahiri A, Yokota S, Ottervanger J, Maas A, Mouden M, Timmer J, Knollema S, Jager P, Sanja Mazic S, Lazovic B, Marina Djelic M, Jelena Suzic Lazic J, Tijana Acimovic T, Milica Deleva M, Vesnina Z, Zafrir N, Bental T, Mats I, Solodky A, Gutstein A, Hasid Y, Belzer D, Kornowski R, Ben Said R, Ben Mansour N, Ibn Haj Amor H, Chourabi C, Hagui A, Fehri W, Hawala H, Shugushev Z, Patrikeev A, Maximkin D, Chepurnoy A, Kallianpur V, Mambetov A, Dokshokov G, Teresinska A, Wozniak O, Maciag A, Wnuk J, Dabrowski A, Czerwiec A, Jezierski J, Biernacka K, Robinson J, Prosser J, Cheung G, Allan S, Mcmaster G, Reid S, Tarbuck A, Martin W, Queiroz R, Falcao A, Giorgi M, Imada R, Nogueira S, Chalela W, Kalil Filho R, Meneghetti W, Matveev V, Bubyenov A, Podzolkov V, Shugushev Z, Maximkin D, Chepurnoy A, Baranovich V, Faibushevich A, Kolzhecova Y, Volkova O, Kallianpur V, Peix A, Cabrera L, Padron K, Rodriguez L, Fernandez J, Lopez G, Mena E, Fernandez Y, Dondi M, Paez D, Butcher C, Reyes E, Al-Housni M, Green R, Santiago H, Ghiotto F, Hinton-Taylor S, Pottle A, Mason M, Underwood S, Casans Tormo I, Diaz-Exposito R, Plancha-Burguera E, Elsaban K, Alsakhri H, Yoshinaga K, Ochi N, Tomiyama Y, Katoh C, Inoue M, Nishida M, Suzuki E, Manabe O, Ito Y, Tamaki N, Tahilyani A, Jafary F, Ho Hee Hwa H, Ozdemir S, Kirilmaz B, Barutcu A, Tan Y, Celik F, Sakgoz S, Cabada Gamboa M, Puente Barragan A, Morales Vitorino N, Medina Servin M, Hindorf C, Akil S, Hedeer F, Jogi J, Engblom H, Martire V, Pis Diez E, Martire M, Portillo D, Hoff C, Balche A, Majgaard J, Tolbod L, Harms H, Bouchelouche K, Soerensen J, Froekiaer J, Gormsen L, Nudi F, Neri G, Procaccini E, Pinto A, Vetere M, Biondi-Zoccai G, Falcao A, Chalela W, Giorgi M, Imada R, Soares J, Do Val R, Oliveira M, Kalil Filho R, Meneghetti J, Tekabe Y, Anthony T, Li Q, Schmidt A, Johnson L, Groenman M, Tarkia M, Kakela M, Halonen P, Kiviniemi T, Pietila M, Yla-Herttuala S, Knuuti J, Roivainen A, Saraste A, Nekolla S, Swirzek S, Higuchi T, Reder S, Schachoff S, Bschorner M, Laitinen I, Robinson S, Yousefi B, Schwaiger M, Kero T, Lindsjo L, Antoni G, Westermark P, Carlson K, Wikstrom G, Sorensen J, Lubberink M, Rouzet F, Cognet T, Guedj K, Morvan M, El Shoukr F, Louedec L, Choqueux C, Nicoletti A, Le Guludec D, Jimenez-Heffernan A, Munoz-Beamud F, Sanchez De Mora E, Borrachero C, Salgado C, Ramos-Font C, Lopez-Martin J, Hidalgo M, Lopez-Aguilar R, Soriano E, Okizaki A, Nakayama M, Ishitoya S, Sato J, Takahashi K, Burchert I, Caobelli F, Wollenweber T, Nierada M, Fulsche J, Dieckmann C, Bengel F, Shuaib S, Mahlum D, Port S, Gemma D, Refoyo E, Cuesta E, Guzman G, Lopez T, Valbuena S, Fernandez-Velilla M, Del Prado S, Moreno M, Lopez-Sendon J, Harbinson M, Donnelly L, Einstein AJ, Johnson LL, Deluca AJ, Kontak AC, Groves DW, Stant J, Pozniakoff T, Cheng B, Rabbani LE, Bokhari S, Caobelli F, Schuetze C, Nierada M, Fulsche J, Dieckmann C, Bengel F, Aguade-Bruix S, Pizzi M, Romero-Farina G, Terricabras M, Villasboas D, Castell-Conesa J, Candell-Riera J, Brunner S, Gross L, Todica A, Lehner S, Di Palo A, Niccoli Asabella A, Magarelli C, Notaristefano A, Ferrari C, Rubini G, Sellem A, Melki S, Elajmi W, Hammami H, Ziadi M, Montero J, Ameriso J, Villavicencio R, Benito Gonzalez TF, Mayorga Bajo A, Gutierrez Caro R, Rodriguez Santamarta M, Alvarez Roy L, Martinez Paz E, Barinaga Martin C, Martin Fernandez J, Alonso Rodriguez D, Iglesias Garriz I, Gemma D, Refoyo E, Cuesta E, Guzman G, Valbuena S, Rosillo S, Del Prado S, Torres M, Moreno M, Lopez-Sendon J, Taleb S, Cherkaoui Salhi G, Regbaoui Y, Ait Idir M, Guensi A, Puente A, Rosales S, Martinez C, Cabada M, Benito Gonzalez TF, Mayorga Bajo A, Gutierrez Caro R, Rodriguez Santamarta M, Alvarez Roy L, Martinez Paz E, Martin Lopez CE, Castano Ruiz M, Martin Fernandez J, Iglesias Garriz I. Poster Session 2: Monday 4 May 2015, 08:00-18:00 * Room: Poster Area. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Ferreira M, Robalo M, Saraiva T, Cunha M, Goncalves L, Albuquerque A, Ramos D, Costa G, Lima J, Pego M, Peovska I, Davceva Pavlovska J, Pop Gorceva D, Zdravkovska M, Vavlukis M, Kostova N, Bulugahapitiya DS, Feben A, Avison M, Foley J, Martin J, De Graaf MA, Van Den Hoogen I, Leen A, Kharagjitsingh A, Kroft L, Jukema J, Bax J, Scholte A, Patel K, Mahan M, Ananthasubramaniam K, Durmus Altun G, Alpay M, Altun A, Andreini D, Pontone G, Mushtaq S, Bertella E, Conte E, Segurini C, Volpato V, Petulla M, Baggiano A, Pepi M, Van Dijk J, Huizing E, Jager P, Slump C, Ottervanger J, Van Dalen J, Yambao E, Calleja H, Sibulo A, Ramirez Moreno A, Siles Rubio J, Noureddine M, Munoz-Bellido J, Bravo R, Martinez F, Valle A, Milan A, Inigo-Garcia L, Velasco T, Ramaiah VL, Devanbu JS, Taywade SK, Hejjaji VS, Zafrir N, Bental T, Gutstein A, Solodky A, Mats I, Kornowski R, Lagan J, Hasleton J, Meah M, Mcshane J, Trent R, Massalha S, Israel O, Koskosi A, Kopelovich M, Marai I, Venuraju S, Jeevarethinam A, Dumo A, Ruano S, Darko D, Cohen M, Nair D, Rosenthal M, Rakhit R, Lahiri A, Pizzi MN, Roque A, Fernandez-Hidalgo N, Cuellar-Calabria H, Gonzalez-Alujas M, Oristrell G, Rodriguez-Palomares J, Tornos P, Aguade-Bruix S, Smettei O, Abazid R, Ahmed WMK, Samy W, Behairy N, Tayeh O, Hassan A, Berezin A, Kremzer A, Samura T, Berezina T, Scrima G, Bertuccio G, Canseco Nadia N, Cruz Raul C, Gonzalez Cristian G, Hernandez Salvador S, Alexanderson Erick E, Zerahn B, Shugushev Z, Maximkin D, Chepurnoy A, Volkova O, Tsedenova A, Faibushevich A, Baranovich V, Yoshida H, Mizukami A, Matsumura A, Keller M, Silber S, Falcao A, Imada R, Azouri L, Giorgi M, Santos R, Mello S, Kalil Filho R, Meneghetti J, Chalela W, Kanni L, Ohrman T, Nygren AT, Irabi R, Falcao A, Imada R, Azouri L, Parisotto T, Soares J, Kalil Filho R, Meneghetti J, Chalela W, Burrell S, Burrell S, Lo C, Zavadovskyi K, Gulya M, Lishmanov Y, Amin A, Kandeel A, Shaban M, Nawito Z, Caobelli F, Soffientini A, Thackeray J, Bengel F, Pizzocaro C, Guerra U, Hellberg S, Silvola J, Kiugel M, Liljenback H, Savisto N, Thiele A, Laine V, Knuuti J, Roivainen A, Saraste A, Ismail B, Hadizad T, Dekemp R, Beanlands R, Dasilva JN, Hyafil F, Sorbets E, Duchatelle V, Rouzet F, Le Guludec D, Feldman L, Martire V, De Pierris C, Martire M, Pis Diez E, Ramaiah V, Devanbu JS, Hejjaji VS, Lebasnier A, Legallois D, Peyronnet D, Desmonts C, Zalcman G, Bienvenu B, Agostini D, Manrique A, Solomyanyy V, Mintale I, Zabunova M, Narbute I, Ratniece M, Jakobsons E, Kaire K, Kamzola G, Briede I, Jegere S, Erglis A, Mostafa S, Abdelkader M, Abdelkader H, Abdelkhlek S, Khairy E, Huidu S, Popescu A, Lacau S, Huidu A, Dimulescu D, Abazid R, Smettei O, Sayed S, Al Harby F, Habeeb A, Saqqah H, Merganiab S, Selvanayagam J, Harms H, Tolbod L, Hansson N, Kero T, Orndahl L, Kim W, Bouchelouche K, Wiggers H, Frokiaer J, Sorensen J, Hansson N, Tolbod L, Harms H, Wiggers H, Kim W, Hansen E, Zaremba T, Frokiaer J, Sorensen J, Harms H, Tolbod L, Hansson N, Kero T, Orndahl L, Kim W, Bouchelouche K, Wiggers H, Frokiaer J, Sorensen J. Poster Session 3: Tuesday 5 May 2015, 08:30-12:30 * Room: Poster Area. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Shvanskaya L, Yakubovich O, Bychkov A, Shcherbakov V, Golovanov A, Zvereva E, Volkova O, Vasiliev A. A cesium copper vanadyl-diphosphate: Synthesis, crystal structure and physical properties. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2014.11.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Presniakov I, Morozov I, Sobolev A, Roslova M, Boltalin A, Son V, Volkova O, Vasiliev A, Wurmehl S, Büchner B. Local structure and hyperfine interactions of 57Fe in NaFeAs studied by Mössbauer spectroscopy. J Phys Condens Matter 2013; 25:346003. [PMID: 23913008 DOI: 10.1088/0953-8984/25/34/346003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Detailed 57Fe Mössbauer spectroscopy measurements on superconducting NaFeAs powder samples have been performed in the temperature range 13 K ≤ T < 300 K. The 57Fe spectra recorded in the paramagnetic range (T > TN ≈ 46 K) are discussed supposing that most of the Fe2+ ions are located in distorted (FeAs4) tetrahedra of NaFeAs phase, while an additional minor (<10%) component of the spectra corresponds to impurity or intergrowth NaFe2As2 phase with a nominal composition near NaFe2As2. Our results reveal that the structural transition (TS ≈ 55 K) has a weak effect on the electronic structure of iron ions, while at T ≤ TN the spectra show a continuous distribution of hyperfine fields HFe. The shape of these spectra is analyzed in terms of two models: (i) an incommensurate spin density wave modulation of iron magnetic structure, (ii) formation of a microdomain structure or phase separation. It is shown that the hyperfine parameters obtained using these two methods have very similar values over the whole temperature range. Analysis of the temperature dependence HFe(T) with the Bean–Rodbell model leads to ζ = 1.16 ± 0.05, suggesting that the magnetic phase transition is first order in nature. A sharp evolution of the VZZ(T) and η(T) parameters of the full Hamiltonian of hyperfine interactions near T ≈ (TN,TS) is interpreted as a manifestation of the anisotropic electron redistribution between the dxz-, dyz- and dxy-orbitals of the iron ions.
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Affiliation(s)
- I Presniakov
- Lomonosov Moscow State University, Moscow, 119992 Leninskie Gory, Moscow, Russia
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Joshi A, Abdullayev E, Vasiliev A, Volkova O, Lvov Y. Interfacial modification of clay nanotubes for the sustained release of corrosion inhibitors. Langmuir 2013; 29:7439-7448. [PMID: 23214412 DOI: 10.1021/la3044973] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Long-lasting anticorrosive coatings for steel have been developed on the basis of halloysite nanotubes loaded with three corrosion inhibitors: benzotriazole, mercaptobenzothiazole, and mercaptobenzimidazole. The inhibitors' loaded tubes were admixed at 5-10 wt % to oil-based alkyd paint providing sustained agent release and corrosion healing in the coating defects. The slow 20-30 h release of the inhibitors at defect points caused a remarkable improvement in the anticorrosion efficiency of the coatings. Further time expansion of anticorrosion agent release has been achieved by the formation of release stoppers at nanotube ends with urea-formaldehyde copolymer and copper-inhibitor complexation. The corrosion protection efficiency was tested on ASTM A366 steel plates in a 0.5 M NaCl solution with the microscanning of corrosion current development by microscopy inspection and studying paint adhesion. The best protection was found using halloysite/mercaptobenzimidazole and benzotriazole inhibitors. Stopper formation with urea-formaldehyde copolymer provided an additional increase in corrosion efficiency as a result of the longer release of inhibitors.
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Affiliation(s)
- Anupam Joshi
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, Louisiana 71272, United States
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Kulemzin S, Chikaev N, Volkova O, Reshetnikova E, Taranin A, Najakshin A, Mechetina L. Characterization of human FCRLA isoforms. Immunol Lett 2013; 152:153-8. [PMID: 23742757 DOI: 10.1016/j.imlet.2013.05.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 05/20/2013] [Accepted: 05/26/2013] [Indexed: 02/01/2023]
Abstract
FCRLA is an ER-resident B-cell specific protein. The exact function of this protein remains unclear although human FCRLA has been recently shown to interact with IgM, IgG and IgA. The retention of FCRLA in ER is mediated by the N-terminal domain. The major human FCRLA isoform is encoded by five exons, of which one encodes a short signal peptide (SSP) and the others code four protein domains. Here we show that human tissues also produce transcripts which contain an additional exon and encode proteins with signal peptide that is six residues longer (LSP). Transfection experiments demonstrated that the extension of the signal peptide had no visible effect on the topology and molecular mass of the processed four-domain FCRLA isoform. However, the length of the signal peptide was found to affect processing of two-domain FCRLA isoforms composed of the third and fourth domains (FCRLAd2). The signal peptide was not cleaved in the SSP-FCRLAd2 and this isoform was found to accumulate in the ER. In contrast, the LSP-containing FCRLAd2 isoform was processed, O-glycosylated and secreted. The secreted FCRLAd2 isoform did not interact with IgG- or IgM-immunosorbents.
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Affiliation(s)
- Sergey Kulemzin
- Institute of Molecular and Cellular Biology SB RAS, 8 Lavrentiev Avenue, Novosibirsk 630090, Russia
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Chareev D, Osadchii E, Kuzmicheva T, Lin JY, Kuzmichev S, Volkova O, Vasiliev A. Single crystal growth and characterization of tetragonal FeSe1−x superconductors. CrystEngComm 2013. [DOI: 10.1039/c2ce26857d] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Yakubovich O, Kiriukhina G, Dimitrova O, Volkov A, Golovanov A, Volkova O, Zvereva E, Baidya S, Saha-Dasgupta T, Vasiliev A. Crystal structure and magnetic properties of a new layered sodium nickel hydroxide phosphate, Na2Ni3(OH)2(PO4)2. Dalton Trans 2013; 42:14718-25. [DOI: 10.1039/c3dt51657a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Shvanskaya L, Yakubovich O, Ivanova A, Baidya S, Saha-Dasgupta T, Zvereva E, Golovanov A, Volkova O, Vasiliev A. Copper rubidium diphosphate, Rb2Cu3(P2O7)2: synthesis, crystal structure, thermodynamic and resonant properties. NEW J CHEM 2013. [DOI: 10.1039/c3nj00422h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Burrows P, Santiago T, Kulemzin S, Reshetnikova E, Chikaev N, Volkova O, Mechetina L, Zhao M, Davis R, Taranin A, Najakshin A, Hendershot L. FCRLA is an intracellular FcR-related protein that binds IgM, IgG and IgA isotypes in B cells (45.11). The Journal of Immunology 2011. [DOI: 10.4049/jimmunol.186.supp.45.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Fc-receptor-like A (FCRLA) is a novel member of the extended Fc receptor (FcR) family. Unlike the classical FcRs and Fc receptor-like (FCRL) molecules, which are typically transmembrane receptors with extracellular ligand binding domains, FCRLA has no predicted transmembrane domain or N-linked glycosylation sites and is positioned intracellularly. We show by confocal microscopy and biochemical assays that FCRLA is a soluble, resident ER protein; however, it lacks a characteristic KDEL retention sequence at its C-terminus. Using a series of deletion mutants, we found that its ER retention is most likely mediated by the amino terminal domain. We have also recently identified ER localized immunoglobulin as an FCRLA ligand. These results indicate that FCRLA is unique among the large FcR family in that can associate with multiple immunoglobulin isotypes, including IgM, IgG, and IgA. To better understand the role of this protein in human disease, B cell chronic lymphocytic leukemia (CLL) samples were assayed for FCRLA expression by flow cytometry. Interestingly, the receptor was more highly expressed by the indolent form of CLL, which is distinguished by somatically hypermutated heavy chain variable region genes, than by the aggressive high-risk form, which features more germline B cell receptor characteristics. These results indicate that FCRLA may thus be a useful diagnostic marker for CLL.
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Affiliation(s)
- Peter Burrows
- 1Microbiology, University of Alabama at Birmingham, Birmingham, AL
| | - Teresa Santiago
- 1Microbiology, University of Alabama at Birmingham, Birmingham, AL
| | - Sergei Kulemzin
- 2Institute of Chemical Biology and Fundamental Medicine, Novosibirsk, Russian Federation
| | - Evdokia Reshetnikova
- 2Institute of Chemical Biology and Fundamental Medicine, Novosibirsk, Russian Federation
| | - Nikolai Chikaev
- 2Institute of Chemical Biology and Fundamental Medicine, Novosibirsk, Russian Federation
| | - Olga Volkova
- 2Institute of Chemical Biology and Fundamental Medicine, Novosibirsk, Russian Federation
| | - Ludmila Mechetina
- 2Institute of Chemical Biology and Fundamental Medicine, Novosibirsk, Russian Federation
| | - Meina Zhao
- 1Microbiology, University of Alabama at Birmingham, Birmingham, AL
| | - Randall Davis
- 1Microbiology, University of Alabama at Birmingham, Birmingham, AL
| | - Alexander Taranin
- 2Institute of Chemical Biology and Fundamental Medicine, Novosibirsk, Russian Federation
| | - Alexander Najakshin
- 2Institute of Chemical Biology and Fundamental Medicine, Novosibirsk, Russian Federation
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Vasiliev A, Volkova O, Presniakov I, Baranov A, Demazeau G, Broto JM, Millot M, Leps N, Klingeler R, Büchner B, Stone MB, Zheludev A. Thermodynamic properties and neutron diffraction studies of silver ferrite AgFeO2. J Phys Condens Matter 2010; 22:016007. [PMID: 21386242 DOI: 10.1088/0953-8984/22/1/016007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We present thermodynamic and neutron scattering data on silver ferrite AgFeO(2). The data imply that strong magnetic frustration Θ/T(N)∼10 and magnetic ordering arise via two successive phase transitions at T(2) = 7 K and T(1) = 16 K. At T<T(2), two metamagnetic phase transitions at B(1)∼14 T and B(2)∼30 T can be identified through the change of slope in the magnetization curve measured up to 53 T. These transitions roughly correspond to an eighth and a quarter of the saturation magnetizations. Unlike for the 'classical' delafossite CuFeO(2), the wavevector of the magnetic structure is independent of temperature both at T<T(2) and at T(2)<T<T(1).
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Patek M, Knoppova M, Volkova O, Pavlik A, Kubac D, Nesvera J, Martinkova L. Organization, regulation and expression of nitrile degradation genes of Rhodococcus erythropolis. N Biotechnol 2009. [DOI: 10.1016/j.nbt.2009.06.694] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Baranov K, Volkova O, Chikaev N, Mechetina L, Laktionov P, Najakshin A, Taranin A. A direct antigen-binding assay for detection of antibodies against native epitopes using alkaline phosphatase-tagged proteins. J Immunol Methods 2008; 332:73-81. [DOI: 10.1016/j.jim.2007.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2007] [Revised: 12/13/2007] [Accepted: 12/19/2007] [Indexed: 11/15/2022]
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Drechsler SL, Volkova O, Vasiliev AN, Tristan N, Richter J, Schmitt M, Rosner H, Málek J, Klingeler R, Zvyagin AA, Büchner B. Frustrated cuprate route from antiferromagnetic to ferromagnetic spin-1/2 Heisenberg chains: Li2ZrCuO4 as a missing link near the quantum critical point. Phys Rev Lett 2007; 98:077202. [PMID: 17359054 DOI: 10.1103/physrevlett.98.077202] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2006] [Indexed: 05/14/2023]
Abstract
From thermodynamics, local spin density approximation+Hubbard U studies and exact diagonalizations of a five-band Hubbard model on CuO2 stripes we find that Li2ZrCuO4 (Li2CuZrO4 in traditional notation) is close to a ferromagnetic critical point. Analyzing its susceptibility chi(T) and specific heat cp(T,H) within a Heisenberg model, we show that the ratio of the 2nd to the 1st neighbor exchange integrals alpha=-J2/J1 approximately 0.3 is close to the critical value alphac=1/4. Comparing with related chain cuprates we explain the rather strong field dependence of cp, the monotonic downshift of the peak of chi(T), and its increase for alpha-->alphac+0.
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Affiliation(s)
- S-L Drechsler
- Leibniz-Institut für Festkörper-und Werkstoffforschung (IFW) Dresden, P.O. Box 270116, D-01171 Dresden, Germany.
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Fregatova L, Volkova O, Platonova G, Afanasiev B. Our first experience of transfusion support in allogenic bone marrow transplantations. Beitr Infusionsther Transfusionsmed 1994; 32:445-447. [PMID: 9422124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Incompatibility of blood group antigens in bone marrow transplantation (BMT) requires the depletion of red blood cells from donor bone marrow in order to avoid fatal transfusion reactions. We purified 72 human bone marrows prior to transplantation from red blood cells by a modified method using simple centrifugation and sedimentation in 6% dextran. Small-volume samples (n = 4) were prediluted with compatible homologous red blood cells to reduce the loss of stem cells during the preparation steps. 12 of 30 allogeneic bone marrows were ABO major incompatible with the patient's blood group. Although we did not observe any transfusion reactions nor graft rejections, in ABO incompatible transplantations, donor reticulocytes appeared 10 days later in the peripheral blood than in patients who received an ABO compatible bone marrow. Concordantly, incompatible patients needed 1.7 times more red blood cell units after BMT.
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Affiliation(s)
- L Fregatova
- Petrov Research Institute of Oncology, Clinical Center of Advanced Medical Technologies, St.-Petersburg, Russia
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