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Shevtsov M, Stangl S, Marchenko Y, Yakovleva L, Ryzhov V, Nikolaev B, Galibin O, Pitkin E, Multhoff G. P11.42 Magnetic targeting of the granzyme B functionalized nanoparticles for therapy of glioblastoma. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.188] [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: 11/12/2022] Open
Abstract
Abstract
BACKGROUND
Magnetic drug targeting by employing external magnetic fields represents a promising approach for treatment of glioblastoma. To increase the anti-tumor therapeutic effect magnetic nanocarriers could be functionalized with tumor-targeting bioligands such as granzyme B (GrB). The serine protease GrB that is produced as an effector molecule by activated NK and T cells can induce specific tumor cell apoptosis.
MATERIAL AND METHODS
The targeting potential of the dextran-coated superparamagnetic iron oxide nanoparticles conjugated with GrB (GrB-SPIONs) was assessed in glioblastoma cells (U87, C6, GL261) by flow cytometry, confocal and electron microscopies. Magnetic field strength (320 mT) in the models of U87 glioblastoma in NMRI nu/nu mice and C6 glioma in Wistar rats was achieved by employing NdFeB cylindrical ferromagnet. The irradiation of the implanted tumors was performed using the CT-image guided Small Animal Radiation Research Platform (SARRP). Accumulation of the nanoparticles was assessed in paraffine-embedded specimens employing Prussian blues staining. Sections were additionally analyzed by IHC for apoptosis (caspase 3).
RESULTS
Synthesized GrB-SPIONs incorporated into the cytoplasm of tumor cells via the endolysosomal pathway and induced apoptosis in a dose-dependent manner. Intravenous injection of GrB-SPIONs resulted in the glioma-specific retention of the nanoparticles as was shown by high-field (11 T) magnetic resonance imaging and biodistribution studies (NLR-M2 measurements). Magnetic targeting of the nanoparticles in vivo drastically enhanced the accumulation of nanoparticles to the location of the magnet. Thus the local retention of nanoparticles was 12.3-fold higher as compared to application of GrB-SPIONs without external magnetic field. The presence of granzyme B on SPIONs has been shown to promote tumor cells death (IHC staining for caspase 3) and significantly increased overall survival. A combination of nanoparticle treatment with a single radiation dose (10 Gy) significantly prolonged the survival of rats as compared to animals treated only with magnetic targeting of GrB-SPIONs or radiotherapy alone (P<0.001).
CONCLUSION
Single-agent therapy with GrB-SPIONs demonstrated an impressive increase in overall survival of tumor-bearing animals. Combinatorial regimen employing magnetic targeting and stereotactic radiotherapy further enhanced the therapeutic potential of magnetic conjugates.
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Affiliation(s)
- M Shevtsov
- Center for Translational Cancer Research Technische Universität München (TranslaTUM), Munich, Germany
- Institute of Cytology of the Russian Academy of Sciences (RAS), St. Petersburg, Russian Federation
| | - S Stangl
- Center for Translational Cancer Research Technische Universität München (TranslaTUM), Munich, Germany
| | - Y Marchenko
- Research Institute of Highly Pure Biopreparations, St. Petersburg, Russian Federation
| | - L Yakovleva
- Research Institute of Highly Pure Biopreparations, St. Petersburg, Russian Federation
| | - V Ryzhov
- NRC “Kurchatov Institute”, Petersburg Nuclear Physics Institute, Gatchina, Russian Federation
| | - B Nikolaev
- Research Institute of Highly Pure Biopreparations, St. Petersburg, Russian Federation
| | - O Galibin
- First Pavlov State Medical University of St. Petersburg, St. Petersburg, Russian Federation
| | - E Pitkin
- Wharton School, University of Pennsylvania, Philadelphia, PA, United States
| | - G Multhoff
- Center for Translational Cancer Research Technische Universität München (TranslaTUM), Munich, Germany
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Shevtsov M, Stangl S, Nikolaev B, Edmond S, Yakovleva L, Marchenko Y, Ryzhov V, Margulis B, Pitkin E, Multhoff G. P04.01 Synergistic antitumor effects of a combined therapy consisting of immune checkpoint inhibitors and tumor-targeting nanoparticles in glioblastoma. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy139.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- M Shevtsov
- Technical University of Munich, Munich, Germany
- University College of London, UCL Cancer Institute, London, United Kingdom
| | - S Stangl
- Technical University of Munich, Munich, Germany
| | - B Nikolaev
- Research Institute of Highly Pure Biopreparations, St.Petersburg, Russian Federation
| | - S Edmond
- Technical University of Munich, Munich, Germany
- St.Gerards Catholic Hospital, Kaduna, Nigeria
| | - L Yakovleva
- Research Institute of Highly Pure Biopreparations, St.Petersburg, Russian Federation
| | - Y Marchenko
- Research Institute of Highly Pure Biopreparations, St.Petersburg, Russian Federation
| | - V Ryzhov
- NRC “Kurchatov Institute”, Petersburg Nuclear Physics Institute, Gatchina, Russian Federation
| | - B Margulis
- Institute of Cytology of the Russian Academy of Sciences (RAS), St.Petersburg, Russian Federation
| | - E Pitkin
- Wharton School, University of Pennsylvania, Philadelphia, PA, United States
| | - G Multhoff
- Technical University of Munich, Munich, Germany
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Shevtsov M, Stangl S, Pitkin E, Nikolaev B, Marchenko Y, Yakovleva L, Ryzhov V, Margulis B, Guzhova I, Multhoff G. PO-411 Combinatorial therapy with immune checkpoint blockade and theranostic tumor-targeted nanoparticles in eradication of tumours. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.922] [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] Open
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Shevtsov M, Stangl S, Nikolaev B, Marchenko Y, Pitkin E, Yakovleva L, Guzhova I, Ryzhov V, Chester K, Multhoff G. PO-506 Targeting membrane-bound Hsp70 on cancer cells with functionalized superparamagnetic nanoparticles: new perspectives for early diagnosis and therapy. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.521] [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] Open
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Shevtsov M, Stangl S, Sievert W, Parr M, Nikolaev B, Illarionov R, Marchenko Y, Yakovleva L, Ryzhov V, Multhoff G. P17.14 Connecting radiotherapy with targeted anti-glioma therapy using superparamagnetic nanoparticles conjugated with Granzyme B. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.460] [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: 11/15/2022] Open
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Timin G, Marchenko Y, Yakovleva L, Nikolaev B, Ryzhov V, Tolkunova E, Shevtsov M. P08.54 Targeting brain tumor with mesenchymal stem cells in the experimental model of the orthotopic glioblastoma. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.243] [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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Shevtsov M, Stangl S, Riederer I, Sievert W, Parr M, Marchenko Y, Yakovleva L, Nikolaev B, Ryzhov V, Multhoff G. P07.20 Combination of the radiotherapy and targeted magnetic nanoparticles in the theranostics of the Hsp70-positive brain tumors. Neuro Oncol 2016. [DOI: 10.1093/neuonc/now188.131] [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: 11/14/2022] Open
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Abstract
A quantum phase transition (QPT) is an inherently dynamic phenomenon. However, while non-dissipative quantum dynamics is described in detail, the question, that is not thoroughly understood is how the omnipresent dissipative processes enter the critical dynamics near a quantum critical point (QCP). Here we report a general approach enabling inclusion of both adiabatic and dissipative processes into the critical dynamics on the same footing. We reveal three distinct critical modes, the adiabatic quantum mode (AQM), the dissipative classical mode [classical critical dynamics mode (CCDM)], and the dissipative quantum critical mode (DQCM). We find that as a result of the transition from the regime dominated by thermal fluctuations to that governed by the quantum ones, the system acquires effective dimension d + zΛ(T), where z is the dynamical exponent, and temperature-depending parameter Λ(T) ∈ [0, 1] decreases with the temperature such that Λ(T = 0) = 1 and Λ(T → ∞) = 0. Our findings lead to a unified picture of quantum critical phenomena including both dissipation- and dissipationless quantum dynamic effects and offer a quantitative description of the quantum-to-classical crossover.
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Affiliation(s)
- M Vasin
- Physical-Technical Institute, Ural Branch of Russian Academy of Sciences, 426000 Izhevsk, Russia.,High Pressure Physics Institute, Russian Academy of Sciences, Moscow, Russia
| | - V Ryzhov
- High Pressure Physics Institute, Russian Academy of Sciences, Moscow, Russia
| | - V M Vinokur
- Materials Science Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, Illinois 60637, USA
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Matveev V, Ryzhov V, Lashkul A, Mazur A, Semenov V, Lähderanta E. Study of Magnetic Nanocomposites by NMR and Bulk Magnetization Techniques. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20147505015] [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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Pogarev SE, Ryzhov V, Mashyanov N, Sholupov S, Zharskaya V. Direct measurement of the mercury content of exhaled air: a new approach for determination of the mercury dose received. Anal Bioanal Chem 2002; 374:1039-44. [PMID: 12458416 DOI: 10.1007/s00216-002-1601-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2002] [Revised: 09/06/2002] [Accepted: 09/16/2002] [Indexed: 11/29/2022]
Abstract
A new rapid technique is presented for determination of the dose of mercury inhaled; it is based on direct measurement of the concentration of mercury in exhaled air by use of a Zeeman mercury spectrometer RA-915+. It has been demonstrated experimentally that the dose received during short-term exposure to mercury vapor is determined more reliably by this method rather than by conventional techniques based on measurement of the mercury content in blood or urine.
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Affiliation(s)
- S E Pogarev
- Research Institute of the Earth's Crust, St Petersburg State University, 7/9 Universitetskaya nab, 199034 St Petersburg, Russia.
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Abstract
This study characterizes various features of the proteins that are detected in MALDI mass spectra when whole bacteria cells are analyzed, in an effort to understand why some proteins are successfully detected and many others are not. Forty peaks observed in the mass range 4,000-20,000 Da in the spectra of Escherichia coli K-12 and 11775 are tentatively assigned to proteins in a protein database, and these proteins are characterized by cell location, copy number, pI, and hydropathicity. Those detected originate in the cytosol and generally share the traits of high abundance within the cell, strong bacisity, and medium hydrophilicity.
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Affiliation(s)
- V Ryzhov
- Department of Chemistry and Biochemistry, University of Maryland, College Park 20742, USA
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Ryzhov V, Dunbar RC, Cerda B, Wesdemiotis C. Cation-pi effects in the complexation of Na+ and K+ with Phe, Tyr, and Trp in the gas phase. J Am Soc Mass Spectrom 2000; 11:1037-1046. [PMID: 11118110 DOI: 10.1016/s1044-0305(00)00181-1] [Citation(s) in RCA: 99] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Na+ and K+ gas-phase affinities of the three aromatic amino acids Phe, Tyr, and Trp were measured by the kinetic method. Na+ binds these amino acids much more strongly than K+, and for both metal ions the binding strength was found to follow the order Phe < or = Tyr < Trp. Quantum chemical calculations by density functional theory (DFT) gave the same qualitative ordering, but suggested a somewhat larger Phe/Trp increment. These results are in acceptable agreement with predictions based on the binding of Na+ and K+ to the side chain model molecules benzene, phenol, and indole, and are also in reasonable agreement with the predictions from purely electrostatic calculations of the side-chain binding effects. The binding energies were compared with those to the aliphatic amino acids glycine and alanine. Binding to the aromatic amino acids was found to be stronger both experimentally and computationally, but the DFT calculations indicate substantially larger increments relative to alanine than shown by the experiments. Possible reasons for this difference are discussed. The metal ion binding energies show the same trends as the proton affinities.
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Affiliation(s)
- V Ryzhov
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, USA
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Hathout Y, Ho YP, Ryzhov V, Demirev P, Fenselau C. Kurstakins: a new class of lipopeptides isolated from Bacillus thuringiensis. J Nat Prod 2000; 63:1492-1496. [PMID: 11087590 DOI: 10.1021/np000169q] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A novel class of lipopeptides was isolated from Bacillus thuringiensis kurstaki HD-1. Four compounds (1-4) were separated by high-performance liquid chromatography and their primary structures determined using a combination of chemical reactions and mass spectrometry. The four lipopeptides were found to have the same amino acid sequence, Thr-Gly-Ala-Ser-His-Gln-Gln, but different fatty acids. The fatty acyl chain is linked to the N-terminal amino acid residue via an amide bond. Each lipopeptide has a lactone linkage between the carboxyl terminal amino acid and the hydroxyl group in the side chain of the serine residue. Antifungal activity was demonstrated against Stachybotrys charatum.
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Affiliation(s)
- Y Hathout
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA.
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Ryzhov V, Hathout Y, Fenselau C. Rapid characterization of spores of Bacillus cereus group bacteria by matrix-assisted laser desorption-ionization time-of-flight mass spectrometry. Appl Environ Microbiol 2000; 66:3828-34. [PMID: 10966397 PMCID: PMC92227 DOI: 10.1128/aem.66.9.3828-3834.2000] [Citation(s) in RCA: 114] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Matrix-assisted laser desorption-ionization (MALDI) time-of-flight mass spectrometry was used to characterize the spores of 14 microorganisms of the Bacillus cereus group. This group includes the four Bacillus species B. anthracis, B. cereus, B. mycoides, and B. thuringiensis. MALDI mass spectra obtained from whole bacterial spores showed many similarities between the species, except for B. mycoides. At the same time, unique mass spectra could be obtained for the different B. cereus and B. thuringiensis strains, allowing for differentiation at the strain level. To increase the number of detectable biomarkers in the usually peak-poor MALDI spectra of spores, the spores were treated by corona plasma discharge (CPD) or sonicated prior to MALDI analysis. Spectra of sonicated or CPD-treated spores displayed an ensemble of biomarkers common for B. cereus group bacteria. Based on the spectra available, these biomarkers differentiate B. cereus group spores from those of Bacillus subtilis and Bacillus globigii. The effect of growth medium on MALDI spectra of spores was also explored.
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Affiliation(s)
- V Ryzhov
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
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15
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Ryzhov V, Bundy JL, Fenselau C, Taranenko N, Doroshenko V, Prasad CR. Matrix-assisted laser desorption/ionization time-of-flight analysis of Bacillus spores using a 2.94 microm infrared laser. Rapid Commun Mass Spectrom 2000; 14:1701-1706. [PMID: 10962494 DOI: 10.1002/1097-0231(20000930)14:18<1701::aid-rcm82>3.0.co;2-i] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The performance of infrared (2.94 microm) and ultraviolet (337 nm) lasers were compared for analysis of purified spores of B. subtilis, B. cereus and B. globigii on a four-inch end-cap reflectron time-of-flight instrument. Infrared matrix-assisted laser desorption/ionization (IR-MALDI) mass spectra of these microorganisms displayed a larger number of biomarker peaks above m/z 4000, compared with UV-MALDI. Biomarker peaks were observed at higher m/z values with the IR laser.
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Affiliation(s)
- V Ryzhov
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
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Hathout Y, Demirev PA, Ho YP, Bundy JL, Ryzhov V, Sapp L, Stutler J, Jackman J, Fenselau C. Identification of Bacillus spores by matrix-assisted laser desorption ionization-mass spectrometry. Appl Environ Microbiol 1999; 65:4313-9. [PMID: 10508053 PMCID: PMC91571 DOI: 10.1128/aem.65.10.4313-4319.1999] [Citation(s) in RCA: 105] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Unique patterns of biomarkers were reproducibly characterized by matrix-assisted laser desorption ionization (MALDI)-mass spectrometry and were used to distinguish Bacillus species members from one another. Discrimination at the strain level was demonstrated for Bacillus cereus spores. Lipophilic biomarkers were invariant in Bacillus globigii spores produced in three different media and in B. globigii spores stored for more than 30 years. The sensitivity was less than 5,000 cells deposited for analysis. Protein biomarkers were also characterized by MALDI analysis by using spores treated briefly with corona plasma discharge. Protein biomarkers were readily desorbed following this treatment. The effect of corona plasma discharge on the spores was examined.
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Affiliation(s)
- Y Hathout
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA.
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Abstract
A method for rapid identification of microorganisms is presented, which exploits the wealth of information contained in prokaryotic genome and protein sequence databases. The method is based on determining the masses of a set of ions by MALDI TOF mass spectrometry of intact or treated cells. Subsequent correlation of each ion in the set to a protein, along with the organismic source of the protein, is performed by searching an Internet-accessible protein database. Convoluting the lists for all ions and ranking the organisms corresponding to matched ions results in the identification of the microorganism. The method has been successfully demonstrated on B. subtilis and E. coli, two organisms with completely sequenced genomes. The method has been also tested for identification from mass spectra of mixtures of microorganisms, from spectra of an organism at different growth stages, and from spectra originating at other laboratories. Experimental factors such as MALDI matrix preparation, spectral reproducibility, contaminants, mass range, and measurement accuracy on the database search procedure are addressed too. The proposed method has several advantages over other MS methods for microorganism identification.
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Affiliation(s)
- P A Demirev
- Department of Chemistry and Biochemistry, University of Maryland, College Park 20742, USA
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