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Alcântara-Neto AS, Fernandez-Rufete M, Corbin E, Tsikis G, Uzbekov R, Garanina AS, Coy P, Almiñana C, Mermillod P. Oviduct fluid extracellular vesicles regulate polyspermy during porcine in vitro fertilisation. Reprod Fertil Dev 2021; 32:409-418. [PMID: 31775998 DOI: 10.1071/rd19058] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 07/18/2019] [Indexed: 12/27/2022] Open
Abstract
High polyspermy is one of the major limitations of porcine invitro fertilisation (IVF). The addition of oviductal fluid (OF) during IVF reduces polyspermy without decreasing the fertilisation rate. Because extracellular vesicles (EVs) have been described as important OF components, the aim of this study was to evaluate the effect of porcine oviductal EVs (poEVs) on IVF efficiency compared with porcine OF (fresh and lyophilised). OF was collected from abattoir oviducts by phosphate-buffered saline flush, and poEVs were isolated by serial ultracentrifugation. Four IVF treatments were conducted: poEVs (0.2mgmL-1), OF (10%), lyophilized and reconstituted pure OF (LOF; 1%) and IVF without supplementation (control). Penetration, monospermy and IVF efficiency were evaluated. Transmission electron microscopy showed an EVs population primarily composed of exosomes (83%; 30-150nm). Supplementation with poEVs during IVF increased monospermy compared with control (44% vs 17%) while maintaining an acceptable penetration rate (61% vs 78% respectively) in a similar way to OF and LOF. Western blotting revealed poEVs proteins involved in early reproductive events, including zona pellucida hardening. In conclusion, our finding show that poEVs are key components of porcine OF and may play roles in porcine fertilisation and polyspermy regulation, suggesting that supplementation with poEVs is a reliable strategy to decrease porcine polyspermy and improve invitro embryo production outcomes.
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Affiliation(s)
- A S Alcântara-Neto
- Unité Mixte de Physiologie de la Reproduction et des Comportements, Institut National de la Recherche Agronomique (INRA), 37380 Nouzilly, France
| | - M Fernandez-Rufete
- Department of Physiology, Faculty of Veterinary, University of Murcia, Murcia, IMIB-Arixaca, Spain
| | - E Corbin
- Unité Mixte de Physiologie de la Reproduction et des Comportements, Institut National de la Recherche Agronomique (INRA), 37380 Nouzilly, France
| | - G Tsikis
- Unité Mixte de Physiologie de la Reproduction et des Comportements, Institut National de la Recherche Agronomique (INRA), 37380 Nouzilly, France
| | - R Uzbekov
- Laboratoire Biologie Cellulaire et Microscopie Electronique, Faculté de Médecine, Université François Rabelais, 37000 Tours, France; and Faculty of Bioengineering and Bioinformatics, Moscow State University, 119992, Leninskye gory 73, Moscow, Russian Federation
| | - A S Garanina
- Laboratoire Biologie Cellulaire et Microscopie Electronique, Faculté de Médecine, Université François Rabelais, 37000 Tours, France; and Present address: National University of Science and Technology 'MISiS', 119049, Moscow, Russian Federation
| | - P Coy
- Department of Physiology, Faculty of Veterinary, University of Murcia, Murcia, IMIB-Arixaca, Spain
| | - C Almiñana
- Unité Mixte de Physiologie de la Reproduction et des Comportements, Institut National de la Recherche Agronomique (INRA), 37380 Nouzilly, France; and Present address: University of Zurich, Genetics and Functional Genomics Group, Clinic of Reproductive Medicine, Department of Farm Animals, VetSuisse Faculty, Zurich, Switzerland
| | - P Mermillod
- Unité Mixte de Physiologie de la Reproduction et des Comportements, Institut National de la Recherche Agronomique (INRA), 37380 Nouzilly, France; and Corresponding author:
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Petrov SA, Machulkin AE, Uspenskaya AA, Zyk NY, Nimenko EA, Garanina AS, Petrov RA, Polshakov VI, Grishin YK, Roznyatovsky VA, Zyk NV, Majouga AG, Beloglazkina EK. Polypeptide-Based Molecular Platform and Its Docetaxel/Sulfo-Cy5-Containing Conjugate for Targeted Delivery to Prostate Specific Membrane Antigen. Molecules 2020; 25:molecules25245784. [PMID: 33302417 PMCID: PMC7762530 DOI: 10.3390/molecules25245784] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/03/2020] [Accepted: 12/06/2020] [Indexed: 01/29/2023] Open
Abstract
A strategy for stereoselective synthesis of molecular platform for targeted delivery of bimodal therapeutic or theranostic agents to the prostate-specific membrane antigen (PSMA) receptor was developed. The proposed platform contains a urea-based, PSMA-targeting Glu-Urea-Lys (EuK) fragment as a vector moiety and tripeptide linker with terminal amide and azide groups for subsequent addition of two different therapeutic and diagnostic agents. The optimal method for this molecular platform synthesis includes (a) solid-phase assembly of the polypeptide linker, (b) coupling of this linker with the vector fragment, (c) attachment of 3-aminopropylazide, and (d) amide and carboxylic groups deprotection. A bimodal theranostic conjugate of the proposed platform with a cytostatic drug (docetaxel) and a fluorescent label (Sulfo-Cy5) was synthesized to demonstrate its possible sequential conjugation with different functional molecules.
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Affiliation(s)
- Stanislav A. Petrov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia; (S.A.P.); (A.E.M.); (A.A.U.); (N.Y.Z.); (E.A.N.); (A.S.G.); (R.A.P.); (Y.K.G.); (V.A.R.); (N.V.Z.); (A.G.M.)
| | - Aleksei E. Machulkin
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia; (S.A.P.); (A.E.M.); (A.A.U.); (N.Y.Z.); (E.A.N.); (A.S.G.); (R.A.P.); (Y.K.G.); (V.A.R.); (N.V.Z.); (A.G.M.)
- Laboratory of Biomedical Nanomaterials, National University of Science and Technology MISiS, Leninskiy pr., 4, 119049 Moscow, Russia
| | - Anastasia A. Uspenskaya
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia; (S.A.P.); (A.E.M.); (A.A.U.); (N.Y.Z.); (E.A.N.); (A.S.G.); (R.A.P.); (Y.K.G.); (V.A.R.); (N.V.Z.); (A.G.M.)
| | - Nikolay Y. Zyk
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia; (S.A.P.); (A.E.M.); (A.A.U.); (N.Y.Z.); (E.A.N.); (A.S.G.); (R.A.P.); (Y.K.G.); (V.A.R.); (N.V.Z.); (A.G.M.)
| | - Ekaterina A. Nimenko
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia; (S.A.P.); (A.E.M.); (A.A.U.); (N.Y.Z.); (E.A.N.); (A.S.G.); (R.A.P.); (Y.K.G.); (V.A.R.); (N.V.Z.); (A.G.M.)
| | - Anastasia S. Garanina
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia; (S.A.P.); (A.E.M.); (A.A.U.); (N.Y.Z.); (E.A.N.); (A.S.G.); (R.A.P.); (Y.K.G.); (V.A.R.); (N.V.Z.); (A.G.M.)
- Laboratory of Biomedical Nanomaterials, National University of Science and Technology MISiS, Leninskiy pr., 4, 119049 Moscow, Russia
| | - Rostislav A. Petrov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia; (S.A.P.); (A.E.M.); (A.A.U.); (N.Y.Z.); (E.A.N.); (A.S.G.); (R.A.P.); (Y.K.G.); (V.A.R.); (N.V.Z.); (A.G.M.)
| | - Vladimir I. Polshakov
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, Lomonosovsky Ave., 27-1, 119991 Moscow, Russia;
| | - Yuri K. Grishin
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia; (S.A.P.); (A.E.M.); (A.A.U.); (N.Y.Z.); (E.A.N.); (A.S.G.); (R.A.P.); (Y.K.G.); (V.A.R.); (N.V.Z.); (A.G.M.)
| | - Vitaly A. Roznyatovsky
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia; (S.A.P.); (A.E.M.); (A.A.U.); (N.Y.Z.); (E.A.N.); (A.S.G.); (R.A.P.); (Y.K.G.); (V.A.R.); (N.V.Z.); (A.G.M.)
| | - Nikolay V. Zyk
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia; (S.A.P.); (A.E.M.); (A.A.U.); (N.Y.Z.); (E.A.N.); (A.S.G.); (R.A.P.); (Y.K.G.); (V.A.R.); (N.V.Z.); (A.G.M.)
| | - Alexander G. Majouga
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia; (S.A.P.); (A.E.M.); (A.A.U.); (N.Y.Z.); (E.A.N.); (A.S.G.); (R.A.P.); (Y.K.G.); (V.A.R.); (N.V.Z.); (A.G.M.)
- Laboratory of Biomedical Nanomaterials, National University of Science and Technology MISiS, Leninskiy pr., 4, 119049 Moscow, Russia
- Mendeleev University of Chemical Technology of Russia, Miusskaya sq. 9, 125947 Moscow, Russia
| | - Elena K. Beloglazkina
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991 Moscow, Russia; (S.A.P.); (A.E.M.); (A.A.U.); (N.Y.Z.); (E.A.N.); (A.S.G.); (R.A.P.); (Y.K.G.); (V.A.R.); (N.V.Z.); (A.G.M.)
- Correspondence:
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3
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Kapitanova KS, Naumenko VA, Garanina AS, Melnikov PA, Abakumov MA, Alieva IB. Advances and Challenges of Nanoparticle-Based Macrophage Reprogramming for Cancer Immunotherapy. Biochemistry (Mosc) 2019; 84:729-745. [PMID: 31509725 DOI: 10.1134/s0006297919070058] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Despite the progress of modern medicine, oncological diseases are still among the most common causes of death of adult populations in developed countries. The current therapeutic approaches are imperfect, and the high mortality of oncological patients under treatment, the lack of personalized strategies, and severe side effects arising as a result of treatment force seeking new approaches to therapy of malignant tumors. During the last decade, cancer immunotherapy, an approach that relies on activation of the host antitumor immune response, has been actively developing. Cancer immunotherapy is the most promising trend in contemporary fundamental and practical oncology, and restoration of the pathologically altered tumor microenvironment is one of its key tasks, in particular, the reprogramming of tumor macrophages from the immunosuppressive M2-phenotype into the proinflammatory M1-phenotype is pivotal for eliciting antitumor response. This review describes the current knowledge about macrophage classification, mechanisms of their polarization, their role in formation of the tumor microenvironment, and strategies for changing the functional activity of M2-macrophages, as well as problems of targeted delivery of immunostimulatory signals to tumor macrophages using nanoparticles.
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Affiliation(s)
- K S Kapitanova
- Lomonosov Moscow State University, Department of Bioengineering and Bioinformatics, Moscow, 119991, Russia
| | - V A Naumenko
- National University of Science and Technology "MISIS", Moscow, 119049, Russia.
| | - A S Garanina
- National University of Science and Technology "MISIS", Moscow, 119049, Russia
| | - P A Melnikov
- Serbsky Federal Medical Research Center of Psychiatry and Narcology, Department of Fundamental and Applied Neurobiology, Ministry of Health of the Russian Federation, Moscow, 119034, Russia
| | - M A Abakumov
- National University of Science and Technology "MISIS", Moscow, 119049, Russia.,Russian National Research Medical University, Department of Medical Nanobiotechnology, Moscow, 117997, Russia
| | - I B Alieva
- A. N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia.
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Vodopyanov SS, Kunin MA, Garanina AS, Grinenko NF, Vlasova KY, Mel'nikov PA, Chekhonin VP, Sukhinich KK, Makarov AV, Naumenko VA, Abakumov MA, Majouga AG. Preparation and Testing of Cells Expressing Fluorescent Proteins for Intravital Imaging of Tumor Microenvironment. Bull Exp Biol Med 2019; 167:123-130. [PMID: 31183645 DOI: 10.1007/s10517-019-04475-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 08/03/2018] [Indexed: 10/26/2022]
Abstract
Intravital microscopy is widely used for in vivo studies of the mechanisms of carcinogenesis and response to antitumor therapy. For visualization of tumor cells in vivo, cell lines expressing fluorescent proteins are needed. Expression of exogenous proteins can affect cell growth rate and their tumorigenic potential. Therefore, comprehensive analysis of the morphofunctional properties of transduced cells is required for creating appropriate models of tumor microenvironment. In the present study, six lines of mouse tumor cells expressing green and red fluorescent proteins were derived. Analysis of cells morphology, growth kinetics, and response to chemotherapy in vitro revealed no significant differences between wild-type and transduced cell lines. Introduction of fluorescent proteins into the genome of 4T1 (murine breast cancer) and B16-F10 (murine melanoma) cells did not affect tumor growth rate after subcutaneous implantation to mice, while both CT26-GFP and CT26-RFP cells (murine colon cancer) were rejected starting from day 8 after implantation. Elucidation of the mechanisms underlying CT26-GFP/RFP rejection is required to modify transduction technique for creating the models of tumor microenvironment accessible for in vivo visualization. Transduced 4T1 and B16-F10 cell lines can be used for intravital microscopic imaging of tumor cells, neoplastic vasculature, and leukocyte subpopulations.
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Affiliation(s)
- S S Vodopyanov
- Laboratory of Biomedical Nanomaterials, National University of Science and Technology (MISIS), Moscow, Russia.
| | - M A Kunin
- M. V. Lomonosov Moscow State University, Moscow, Russia
| | - A S Garanina
- Laboratory of Biomedical Nanomaterials, National University of Science and Technology (MISIS), Moscow, Russia
| | - N F Grinenko
- V. P. Serbsky Federal Medical Research Center for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - K Yu Vlasova
- M. V. Lomonosov Moscow State University, Moscow, Russia
| | - P A Mel'nikov
- V. P. Serbsky Federal Medical Research Center for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - V P Chekhonin
- V. P. Serbsky Federal Medical Research Center for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
- N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - K K Sukhinich
- N. K. Kol'tsov Institute of Developmental Biology, Russian Academy of Sciences, Moscow, Russia
| | - A V Makarov
- V. P. Serbsky Federal Medical Research Center for Psychiatry and Narcology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - V A Naumenko
- Laboratory of Biomedical Nanomaterials, National University of Science and Technology (MISIS), Moscow, Russia
| | - M A Abakumov
- Laboratory of Biomedical Nanomaterials, National University of Science and Technology (MISIS), Moscow, Russia
- N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A G Majouga
- Laboratory of Biomedical Nanomaterials, National University of Science and Technology (MISIS), Moscow, Russia
- M. V. Lomonosov Moscow State University, Moscow, Russia
- D. I. Mendeleev University of Chemical Technology, Moscow, Russia
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Ivanenkov YA, Machulkin AE, Garanina AS, Skvortsov DA, Uspenskaya AA, Deyneka EV, Trofimenko AV, Beloglazkina EK, Zyk NV, Koteliansky VE, Bezrukov DS, Aladinskaya AV, Vorobyeva NS, Puchinina MM, Riabykh GK, Sofronova AA, Malyshev AS, Majouga AG. Synthesis and biological evaluation of Doxorubicin-containing conjugate targeting PSMA. Bioorg Med Chem Lett 2019; 29:1246-1255. [DOI: 10.1016/j.bmcl.2019.01.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 01/15/2019] [Accepted: 01/30/2019] [Indexed: 12/19/2022]
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6
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Machulkin AE, Garanina AS, Zhironkina OA, Beloglazkina EK, Zyk NV, Savchenko AG, Kotelyanskii VE, Mazhuga AG. Nanohybride Materials Based on Magnetite-Gold Nanoparticles for Diagnostics of Prostate Cancer: Synthesis and In Vitro Testing. Bull Exp Biol Med 2016; 161:706-710. [PMID: 27704352 DOI: 10.1007/s10517-016-3490-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 08/28/2015] [Indexed: 01/11/2023]
Abstract
We synthesized a fluorescence conjugate and modified magnetite-gold nanoparticles carrying prostate specific membrane antigen (PSMA) as the ligand. Analysis of their binding to human prostate cancer cell lines PC-3 (PSMA-) and LNCaP (PSMA+) showed selective interaction of the synthesized conjugate and modified nanoparticles with LNCaP cells. These findings suggest that these nanoparticles can be used in tissue-specific magnetic-resonance imaging.
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Affiliation(s)
- A E Machulkin
- Laboratory of Tissue-Specific Ligands, Faculty of Chemistry, M. V. Lomonosov Moscow State University, Moscow, Russia. .,Laboratory of Biomedical Nanomaterials, National University of Science and Technology, Moscow Institute of Steel and Alloys (NUST MISiS), Moscow, Russia.
| | - A S Garanina
- Laboratory of Biomedical Nanomaterials, National University of Science and Technology, Moscow Institute of Steel and Alloys (NUST MISiS), Moscow, Russia
| | - O A Zhironkina
- Department of Electronic Microscopy, A. N. Belozersky Research Institute of Physical and Chemical Biology, Moscow, Russia
| | - E K Beloglazkina
- Laboratory of Tissue-Specific Ligands, Faculty of Chemistry, M. V. Lomonosov Moscow State University, Moscow, Russia.,Laboratory of Biomedical Nanomaterials, National University of Science and Technology, Moscow Institute of Steel and Alloys (NUST MISiS), Moscow, Russia
| | - N V Zyk
- Laboratory of Tissue-Specific Ligands, Faculty of Chemistry, M. V. Lomonosov Moscow State University, Moscow, Russia
| | - A G Savchenko
- Laboratory of Biomedical Nanomaterials, National University of Science and Technology, Moscow Institute of Steel and Alloys (NUST MISiS), Moscow, Russia
| | - V E Kotelyanskii
- Laboratory of Tissue-Specific Ligands, Faculty of Chemistry, M. V. Lomonosov Moscow State University, Moscow, Russia
| | - A G Mazhuga
- Laboratory of Tissue-Specific Ligands, Faculty of Chemistry, M. V. Lomonosov Moscow State University, Moscow, Russia.,Laboratory of Biomedical Nanomaterials, National University of Science and Technology, Moscow Institute of Steel and Alloys (NUST MISiS), Moscow, Russia
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Garanina AS, Khashba LA, Onishchenko GE. Stages of Cell Cannibalism--Entosis--in Normal Human Keratinocyte Culture. Biochemistry (Mosc) 2016; 80:1469-77. [PMID: 26615438 DOI: 10.1134/s0006297915110085] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Entosis is a type of cell cannibalism during which one cell penetrates into another cell and usually dies inside it. Researchers mainly pay attention to initial and final stages of entosis. Besides, tumor cells in suspension are the primary object of studies. In the present study, we investigated morphological changes of both cells-participants of entosis during this process. The substrate-dependent culture of human normal keratinocytes HaCaT was chosen for the work. A combination of light microscopy and scanning electron microscopy was used to prove that one cell was completely surrounded by the plasma membrane of another cell. We investigated such "cell-in-cell" structures and described the structural and functional changes of both cells during entosis. The outer cell nucleus localization and shape were changed. Gradual degradation of the inner cell nucleus and of the junctions between the inner and the outer cells was revealed. Moreover, repeated redistribution of the outer cell membrane organelles (Golgi apparatus, lysosomes, mitochondria, and autophagosomes), rearrangement of its cytoskeleton, and change in the lysosomal, autophagosomal, and mitochondrial state in both entotic cells were observed during entosis. On the basis of these data, we divided entosis into five stages that make it possible to systematize description of this type of cell death.
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Affiliation(s)
- A S Garanina
- Lomonosov Moscow State University, Biological Faculty, Moscow, 119991, Russia.
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8
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Alieva IB, Kireev I, Garanina AS, Alyabyeva N, Ruyter A, Strelkova OS, Zhironkina OA, Cherepaninets VD, Majouga AG, Davydov VA, Khabashesku VN, Agafonov V, Uzbekov RE. Magnetocontrollability of Fe7C3@C superparamagnetic nanoparticles in living cells. J Nanobiotechnology 2016; 14:67. [PMID: 27576904 PMCID: PMC5006615 DOI: 10.1186/s12951-016-0219-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 08/18/2016] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND A new type of superparamagnetic nanoparticles with chemical formula Fe7C3@C (MNPs) showed higher value of magnetization compared to traditionally used iron oxide-based nanoparticles as was shown in our previous studies. The in vitro biocompatibility tests demonstrated that the MNPs display high efficiency of cellular uptake and do not affect cyto-physiological parameters of cultured cells. These MNPs display effective magnetocontrollability in homogeneous liquids but their behavior in cytoplasm of living cells under the effect of magnetic field was not carefully analyzed yet. RESULTS In this work we investigated the magnetocontrollability of MNPs interacting with living cells in permanent magnetic field. It has been shown that cells were capable of capturing MNPs by upper part of the cell membrane, and from the surface of the cultivation substrate during motion process. Immunofluorescence studies using intracellular endosomal membrane marker showed that MNP agglomerates can be either located in endosomes or lying free in the cytoplasm. When attached cells were exposed to a magnetic field up to 0.15 T, the MNPs acquired magnetic moment and the displacement of incorporated MNP agglomerates in the direction of the magnet was observed. Weakly attached or non-attached cells, such as cells in mitosis or after cytoskeleton damaging treatments moved towards the magnet. During long time cultivation of cells with MNPs in a magnetic field gradual clearing of cells from MNPs was observed. It was the result of removing MNPs from the surface of the cell agglomerates discarded in the process of exocytosis. CONCLUSIONS Our data allow us to conclude for the first time that the magnetic properties of the MNPs are sufficient for successful manipulation with MNP agglomerates both at the intracellular level, and within the whole cell. The structure of the outer shells of the MNPs allows firmly associate different types of biological molecules with them. This creates prospects for the use of such complexes for targeted delivery and selective removal of selected biological molecules from living cells.
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Affiliation(s)
- Irina B. Alieva
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia 119992
| | - Igor Kireev
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia 119992
- Biology Faculty, Moscow State University, Moscow, Russia 119992
| | | | - Natalia Alyabyeva
- GREMAN, UMR CNRS 7347, Université François Rabelais, 37200 Tours, France
| | - Antoine Ruyter
- GREMAN, UMR CNRS 7347, Université François Rabelais, 37200 Tours, France
| | - Olga S. Strelkova
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia 119992
| | - Oxana A. Zhironkina
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia 119992
| | - Varvara D. Cherepaninets
- A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow, Russia 119992
| | - Alexander G. Majouga
- Chemistry Faculty, Moscow State University, Moscow, Russia 119992
- MISiS, Leninskiy prospekt 2, Moscow, Russia 119049
| | - Valery A. Davydov
- Institute of High Pressure Physics RAS, Troitsk, Moscow region Russia 142190
| | | | - Viatcheslav Agafonov
- GREMAN, UMR CNRS 7347, Université François Rabelais, 37200 Tours, France
- MISiS, Leninskiy prospekt 2, Moscow, Russia 119049
| | - Rustem E. Uzbekov
- Laboratoire Biologie Cellulaire et Microscopie Electronique, Faculté de Médecine, Université François Rabelais, 37032 Tours, France
- Faculty of Bioengineering and Bioinformatics, Moscow State University, Moscow, Russia 119992
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