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Lunova M, Jirsa M, Dejneka A, Sullivan GJ, Lunov O. Mechanical regulation of mitochondrial morphodynamics in cancer cells by extracellular microenvironment. Biomater Biosyst 2024; 14:100093. [PMID: 38585282 PMCID: PMC10992729 DOI: 10.1016/j.bbiosy.2024.100093] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 03/05/2024] [Accepted: 03/24/2024] [Indexed: 04/09/2024] Open
Abstract
Recently, it has been recognized that physical abnormalities (e.g. elevated solid stress, elevated interstitial fluid pressure, increased stiffness) are associated with tumor progression and development. Additionally, these mechanical forces originating from tumor cell environment through mechanotransduction pathways can affect metabolism. On the other hand, mitochondria are well-known as bioenergetic, biosynthetic, and signaling organelles crucial for sensing stress and facilitating cellular adaptation to the environment and physical stimuli. Disruptions in mitochondrial dynamics and function have been found to play a role in the initiation and advancement of cancer. Consequently, it is logical to hypothesize that mitochondria dynamics subjected to physical cues may play a pivotal role in mediating tumorigenesis. Recently mitochondrial biogenesis and turnover, fission and fusion dynamics was linked to mechanotransduction in cancer. However, how cancer cell mechanics and mitochondria functions are connected, still remain poorly understood. Here, we discuss recent studies that link mechanical stimuli exerted by the tumor cell environment and mitochondria dynamics and functions. This interplay between mechanics and mitochondria functions may shed light on how mitochondria regulate tumorigenesis.
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Affiliation(s)
- Mariia Lunova
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18200, Czech Republic
- Institute for Clinical & Experimental Medicine (IKEM), Prague 14021, Czech Republic
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), Prague 14021, Czech Republic
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18200, Czech Republic
| | | | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18200, Czech Republic
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Fomichov YM, Yudin PV, Tyunina M, Dejneka A. Theory for anisotropic local ferroelectric switching. Nanotechnology 2023; 35:04LT01. [PMID: 37863078 DOI: 10.1088/1361-6528/ad0595] [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] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 10/20/2023] [Indexed: 10/22/2023]
Abstract
Theoretical modeling of polarization switching around a biased tip contact is important for fundamental understanding and advanced applications of ferroelectrics. Here we propose a simple in-plane two-dimensional model that considers surface charge transport and the associated evolution of the electric field driving domain growth. The model reproduces peculiar domain shapes ranging from round to faceted in KTiOPO4(C2vsymmetry) and LiNbO3(C3vsymmetry). This is done through modulation of dielectric permittivity, which mimics domain wall pinning on the lattice. In contrast to previous works, which attempted to justify domain anisotropy by means of point symmetry invariants, here we illustrate the necessity of taking translational symmetry into account. The results are pertinent to ferroelectric racetrack memories and other applications requiring domain tailoring.
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Affiliation(s)
- Y M Fomichov
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18221 Praha 8, Czech Republic
| | - P V Yudin
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18221 Praha 8, Czech Republic
- Kutateladze Institute of Thermophysics, Siberian Branch of Russian Academy of Science, Lavrent'eva av. 1, Novosibirsk, Russia
| | - M Tyunina
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18221 Praha 8, Czech Republic
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, PO Box 4500, FI-90014 Oulu, Finland
| | - A Dejneka
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18221 Praha 8, Czech Republic
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3
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Pilipenco A, Forinová M, Mašková H, Hönig V, Palus M, Lynn Jr. NS, Víšová I, Vrabcová M, Houska M, Anthi J, Spasovová M, Mustacová J, Štěrba J, Dostálek J, Tung CP, Yang AS, Jack R, Dejneka A, Hajdu J, Vaisocherová-Lísalová H. Negligible risk of surface transmission of SARS-CoV-2 in public transportation. J Travel Med 2023; 30:taad065. [PMID: 37133444 PMCID: PMC10481417 DOI: 10.1093/jtm/taad065] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/14/2023] [Accepted: 04/22/2023] [Indexed: 05/04/2023]
Abstract
BACKGROUND Exposure to pathogens in public transport systems is a common means of spreading infection, mainly by inhaling aerosol or droplets from infected individuals. Such particles also contaminate surfaces, creating a potential surface-transmission pathway. METHODS A fast acoustic biosensor with an antifouling nano-coating was introduced to detect severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) on exposed surfaces in the Prague Public Transport System. Samples were measured directly without pre-treatment. Results with the sensor gave excellent agreement with parallel quantitative reverse-transcription polymerase chain reaction (qRT-PCR) measurements on 482 surface samples taken from actively used trams, buses, metro trains and platforms between 7 and 9 April 2021, in the middle of the lineage Alpha SARS-CoV-2 epidemic wave when 1 in 240 people were COVID-19 positive in Prague. RESULTS Only ten of the 482 surface swabs produced positive results and none of them contained virus particles capable of replication, indicating that positive samples contained inactive virus particles and/or fragments. Measurements of the rate of decay of SARS-CoV-2 on frequently touched surface materials showed that the virus did not remain viable longer than 1-4 h. The rate of inactivation was the fastest on rubber handrails in metro escalators and the slowest on hard-plastic seats, window glasses and stainless-steel grab rails. As a result of this study, Prague Public Transport Systems revised their cleaning protocols and the lengths of parking times during the pandemic. CONCLUSIONS Our findings suggest that surface transmission played no or negligible role in spreading SARS-CoV-2 in Prague. The results also demonstrate the potential of the new biosensor to serve as a complementary screening tool in epidemic monitoring and prognosis.
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Affiliation(s)
- Alina Pilipenco
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00 Prague, Czech Republic
| | - Michala Forinová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00 Prague, Czech Republic
| | - Hana Mašková
- Faculty of Science, University of South Bohemia, Branišovská 1645/31a, 370 05 České Budějovice, Czech Republic
| | - Václav Hönig
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Hudcova 70, 621 00 Brno, Czech Republic
| | - Martin Palus
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Hudcova 70, 621 00 Brno, Czech Republic
| | - Nicholas Scott Lynn Jr.
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00 Prague, Czech Republic
| | - Ivana Víšová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00 Prague, Czech Republic
| | - Markéta Vrabcová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00 Prague, Czech Republic
| | - Milan Houska
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00 Prague, Czech Republic
| | - Judita Anthi
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00 Prague, Czech Republic
| | - Monika Spasovová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00 Prague, Czech Republic
| | - Johana Mustacová
- Faculty of Science, University of South Bohemia, Branišovská 1645/31a, 370 05 České Budějovice, Czech Republic
| | - Ján Štěrba
- Faculty of Science, University of South Bohemia, Branišovská 1645/31a, 370 05 České Budějovice, Czech Republic
| | - Jakub Dostálek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00 Prague, Czech Republic
| | - Chao-Ping Tung
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - An-Suei Yang
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Rachael Jack
- The European Extreme Light Infrastructure, ERIC, Za Radnici 835, 25241 Dolní Břežany, Czech Republic
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00 Prague, Czech Republic
| | - Janos Hajdu
- The European Extreme Light Infrastructure, ERIC, Za Radnici 835, 25241 Dolní Břežany, Czech Republic
- Department of Cell and Molecular Biology, Uppsala University, Box 596, 751 24 Uppsala, Sweden
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Harrison SP, Siller R, Tanaka Y, Chollet ME, de la Morena-Barrio ME, Xiang Y, Patterson B, Andersen E, Bravo-Pérez C, Kempf H, Åsrud KS, Lunov O, Dejneka A, Mowinckel MC, Stavik B, Sandset PM, Melum E, Baumgarten S, Bonanini F, Kurek D, Mathapati S, Almaas R, Sharma K, Wilson SR, Skottvoll FS, Boger IC, Bogen IL, Nyman TA, Wu JJ, Bezrouk A, Cizkova D, Corral J, Mokry J, Zweigerdt R, Park IH, Sullivan GJ. Scalable production of tissue-like vascularized liver organoids from human PSCs. Exp Mol Med 2023; 55:2005-2024. [PMID: 37653039 PMCID: PMC10545717 DOI: 10.1038/s12276-023-01074-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 04/18/2023] [Accepted: 06/02/2023] [Indexed: 09/02/2023] Open
Abstract
The lack of physiological parity between 2D cell culture and in vivo culture has led to the development of more organotypic models, such as organoids. Organoid models have been developed for a number of tissues, including the liver. Current organoid protocols are characterized by a reliance on extracellular matrices (ECMs), patterning in 2D culture, costly growth factors and a lack of cellular diversity, structure, and organization. Current hepatic organoid models are generally simplistic and composed of hepatocytes or cholangiocytes, rendering them less physiologically relevant compared to native tissue. We have developed an approach that does not require 2D patterning, is ECM independent, and employs small molecules to mimic embryonic liver development that produces large quantities of liver-like organoids. Using single-cell RNA sequencing and immunofluorescence, we demonstrate a liver-like cellular repertoire, a higher order cellular complexity, presenting with vascular luminal structures, and a population of resident macrophages: Kupffer cells. The organoids exhibit key liver functions, including drug metabolism, serum protein production, urea synthesis and coagulation factor production, with preserved post-translational modifications such as N-glycosylation and functionality. The organoids can be transplanted and maintained long term in mice producing human albumin. The organoids exhibit a complex cellular repertoire reflective of the organ and have de novo vascularization and liver-like function. These characteristics are a prerequisite for many applications from cellular therapy, tissue engineering, drug toxicity assessment, and disease modeling to basic developmental biology.
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Affiliation(s)
- Sean P Harrison
- Hybrid Technology Hub-Centre of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Department of Pediatric Research, Oslo University Hospital, Oslo, Norway
| | - Richard Siller
- Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Yoshiaki Tanaka
- Department of Genetics, Yale Stem Cell Center, Child Study Center, Yale School of Medicine, New Haven, USA
- Department of Medicine, Faculty of Medicine, Maisonneuve-Rosemont Hospital Research Center (CRHMR), University of Montreal, Montreal, Canada
| | - Maria Eugenia Chollet
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
- Department of Haematology, Oslo University Hospital, Oslo, Norway
| | - María Eugenia de la Morena-Barrio
- Servicio de Hematología y Oncología Médica, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Universidad de Murcia, IMIB, CIBERER, Murcia, Spain
| | - Yangfei Xiang
- Department of Genetics, Yale Stem Cell Center, Child Study Center, Yale School of Medicine, New Haven, USA
| | - Benjamin Patterson
- Department of Genetics, Yale Stem Cell Center, Child Study Center, Yale School of Medicine, New Haven, USA
| | - Elisabeth Andersen
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
- Department of Haematology, Oslo University Hospital, Oslo, Norway
| | - Carlos Bravo-Pérez
- Servicio de Hematología y Oncología Médica, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Universidad de Murcia, IMIB, CIBERER, Murcia, Spain
| | - Henning Kempf
- Department: Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany
| | - Kathrine S Åsrud
- Norwegian PSC Research Center, Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Marie-Christine Mowinckel
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
- Department of Haematology, Oslo University Hospital, Oslo, Norway
| | - Benedicte Stavik
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
- Department of Haematology, Oslo University Hospital, Oslo, Norway
| | - Per Morten Sandset
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
- Department of Haematology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Espen Melum
- Hybrid Technology Hub-Centre of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Department of Haematology, Oslo University Hospital, Oslo, Norway
- Norwegian PSC Research Center, Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Section for Gastroenterology, Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
- European Reference Network RARE-LIVER, Hamburg, Germany
| | - Saphira Baumgarten
- Hybrid Technology Hub-Centre of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Department of Pediatric Research, Oslo University Hospital, Oslo, Norway
| | | | | | - Santosh Mathapati
- Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Runar Almaas
- Department of Pediatric Research, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- European Reference Network RARE-LIVER, Hamburg, Germany
| | - Kulbhushan Sharma
- Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Steven R Wilson
- Hybrid Technology Hub-Centre of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, NO-0315, Oslo, Norway
| | - Frøydis S Skottvoll
- Hybrid Technology Hub-Centre of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, NO-0315, Oslo, Norway
| | - Ida C Boger
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, NO-0315, Oslo, Norway
| | - Inger Lise Bogen
- Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway
| | - Tuula A Nyman
- Department of Immunology, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Jun Jie Wu
- Department of Engineering, Faculty of Science, Durham University, Durham, DH1 3LE, United Kingdom
| | - Ales Bezrouk
- Department of Medical Biophysics, Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Dana Cizkova
- Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Javier Corral
- Servicio de Hematología y Oncología Médica, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, Universidad de Murcia, IMIB, CIBERER, Murcia, Spain
| | - Jaroslav Mokry
- Department of Histology and Embryology, Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic
| | - Robert Zweigerdt
- Department: Leibniz Research Laboratories for Biotechnology and Artificial Organs (LEBAO), Hannover Medical School, Hannover, Germany
| | - In-Hyun Park
- Department of Genetics, Yale Stem Cell Center, Child Study Center, Yale School of Medicine, New Haven, USA
| | - Gareth J Sullivan
- Hybrid Technology Hub-Centre of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
- Department of Pediatric Research, Oslo University Hospital, Oslo, Norway.
- Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway.
- Department of Immunology, University of Oslo and Oslo University Hospital, Oslo, Norway.
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5
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Uzhytchak M, Lunova M, Smolková B, Jirsa M, Dejneka A, Lunov O. Iron oxide nanoparticles trigger endoplasmic reticulum damage in steatotic hepatic cells. Nanoscale Adv 2023; 5:4250-4268. [PMID: 37560414 PMCID: PMC10408607 DOI: 10.1039/d3na00071k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 07/13/2023] [Indexed: 08/11/2023]
Abstract
Iron oxide nanoparticles (IONPs) are being actively researched in various biomedical applications, particularly as magnetic resonance imaging (MRI) contrast agents for diagnosing various liver pathologies like nonalcoholic fatty liver diseases, nonalcoholic steatohepatitis, and cirrhosis. Emerging evidence suggests that IONPs may exacerbate hepatic steatosis and liver injury in susceptible livers such as those with nonalcoholic fatty liver disease. However, our understanding of how IONPs may affect steatotic cells at the sub-cellular level is still fragmented. Generally, there is a lack of studies identifying the molecular mechanisms of potential toxic and/or adverse effects of IONPs on "non-heathy" in vitro models. In this study, we demonstrate that IONPs, at a dose that does not cause general toxicity in hepatic cells (Alexander and HepG2), induce significant toxicity in steatotic cells (cells loaded with non-toxic doses of palmitic acid). Mechanistically, co-treatment with PA and IONPs resulted in endoplasmic reticulum (ER) stress, accompanied by the release of cathepsin B from lysosomes to the cytosol. The release of cathepsin B, along with ER stress, led to the activation of apoptotic cell death. Our results suggest that it is necessary to consider the interaction between IONPs and the liver, especially in susceptible livers. This study provides important basic knowledge for the future optimization of IONPs as MRI contrast agents for various biomedical applications.
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Affiliation(s)
- Mariia Uzhytchak
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences Prague 18221 Czech Republic
| | - Mariia Lunova
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences Prague 18221 Czech Republic
- Institute for Clinical & Experimental Medicine (IKEM) Prague 14021 Czech Republic
| | - Barbora Smolková
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences Prague 18221 Czech Republic
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM) Prague 14021 Czech Republic
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences Prague 18221 Czech Republic
| | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences Prague 18221 Czech Republic
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6
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Tyunina M, Savinov M, Pacherova O, Dejneka A. Small-polaron transport in perovskite nickelates. Sci Rep 2023; 13:12493. [PMID: 37528184 PMCID: PMC10394062 DOI: 10.1038/s41598-023-39821-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/31/2023] [Indexed: 08/03/2023] Open
Abstract
Knowledge of the explicit mechanisms of charge transport is preeminent for a fundamental understanding of the metal-to-insulator transition in ABO3-type perovskite rare-earth nickelates and for potential applications of these technologically promising materials. Here we suggest that owing to intrinsic Jahn-Teller-driven carrier localization, small-polaron transport is innate in nickelates. We demonstrate experimental evidence for such transport by investigating AC conductivity over a broad range of temperatures and frequencies in epitaxial SmNiO3 films. We reveal the hopping mechanism of conductivity, Holstein-type activation energy for hopping, nonclassical relaxation behavior, and nonclassical consistency between activation and relaxation. By analyzing these observations, we validate small-polaron transport. We anticipate that our findings can lead to precise tailoring of the DC and AC conductivity in nickelates as requested for fruitful employment of these materials. We also believe that further investigations of self-trapped small polarons are essential for a comprehensive understanding of nickelates.
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Affiliation(s)
- M Tyunina
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18220, Prague, Czech Republic.
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, P. O. Box 4500, Fl-90014, Oulu, Finland.
| | - M Savinov
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18220, Prague, Czech Republic
| | - O Pacherova
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18220, Prague, Czech Republic
| | - A Dejneka
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18220, Prague, Czech Republic
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7
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Uzhytchak M, Smolková B, Frtús A, Stupakov A, Lunova M, Scollo F, Hof M, Jurkiewicz P, Sullivan GJ, Dejneka A, Lunov O. Sensitivity of endogenous autofluorescence in HeLa cells to the application of external magnetic fields. Sci Rep 2023; 13:10818. [PMID: 37402779 DOI: 10.1038/s41598-023-38015-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 06/30/2023] [Indexed: 07/06/2023] Open
Abstract
Dramatically increased levels of electromagnetic radiation in the environment have raised concerns over the potential health hazards of electromagnetic fields. Various biological effects of magnetic fields have been proposed. Despite decades of intensive research, the molecular mechanisms procuring cellular responses remain largely unknown. The current literature is conflicting with regards to evidence that magnetic fields affect functionality directly at the cellular level. Therefore, a search for potential direct cellular effects of magnetic fields represents a cornerstone that may propose an explanation for potential health hazards associated with magnetic fields. It has been proposed that autofluorescence of HeLa cells is magnetic field sensitive, relying on single-cell imaging kinetic measurements. Here, we investigate the magnetic field sensitivity of an endogenous autofluorescence in HeLa cells. Under the experimental conditions used, magnetic field sensitivity of an endogenous autofluorescence was not observed in HeLa cells. We present a number of arguments indicating why this is the case in the analysis of magnetic field effects based on the imaging of cellular autofluorescence decay. Our work indicates that new methods are required to elucidate the effects of magnetic fields at the cellular level.
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Affiliation(s)
- Mariia Uzhytchak
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
| | - Barbora Smolková
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
| | - Adam Frtús
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
| | - Alexandr Stupakov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
| | - Mariia Lunova
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
- Institute for Clinical and Experimental Medicine (IKEM), Prague, 14021, Czech Republic
| | - Federica Scollo
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, 18223, Czech Republic
| | - Martin Hof
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, 18223, Czech Republic
| | - Piotr Jurkiewicz
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, 18223, Czech Republic
| | - Gareth John Sullivan
- Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Department of Pediatric Research, Oslo University Hospital, Oslo, Norway
- Department of Immunology, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
| | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic.
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8
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Uzhytchak M, Smolková B, Lunova M, Frtús A, Jirsa M, Dejneka A, Lunov O. Lysosomal nanotoxicity: Impact of nanomedicines on lysosomal function. Adv Drug Deliv Rev 2023; 197:114828. [PMID: 37075952 DOI: 10.1016/j.addr.2023.114828] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 03/28/2023] [Accepted: 04/12/2023] [Indexed: 04/21/2023]
Abstract
Although several nanomedicines got clinical approval over the past two decades, the clinical translation rate is relatively small so far. There are many post-surveillance withdrawals of nanomedicines caused by various safety issues. For successful clinical advancement of nanotechnology, it is of unmet need to realize cellular and molecular foundation of nanotoxicity. Current data suggest that lysosomal dysfunction caused by nanoparticles is emerging as the most common intracellular trigger of nanotoxicity. This review analyzes prospect mechanisms of lysosomal dysfunction-mediated toxicity induced by nanoparticles. We summarized and critically assessed adverse drug reactions of current clinically approved nanomedicines. Importantly, we show that physicochemical properties have great impact on nanoparticles interaction with cells, excretion route and kinetics, and subsequently on toxicity. We analyzed literature on adverse reactions of current nanomedicines and hypothesized that adverse reactions might be linked with lysosomal dysfunction caused by nanomedicines. Finally, from our analysis it becomes clear that it is unjustifiable to generalize safety and toxicity of nanoparticles, since different particles possess distinct toxicological properties. We propose that the biological mechanism of the disease progression and treatment should be central in the optimization of nanoparticle design.
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Affiliation(s)
- Mariia Uzhytchak
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic
| | - Barbora Smolková
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic
| | - Mariia Lunova
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; Institute for Clinical & Experimental Medicine (IKEM), 14021 Prague, Czech Republic
| | - Adam Frtús
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), 14021 Prague, Czech Republic
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic
| | - Oleg Lunov
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
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9
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Frtús A, Smolková B, Uzhytchak M, Lunova M, Jirsa M, Petrenko Y, Dejneka A, Lunov O. Mechanical Regulation of Mitochondrial Dynamics and Function in a 3D-Engineered Liver Tumor Microenvironment. ACS Biomater Sci Eng 2023; 9:2408-2425. [PMID: 37001010 PMCID: PMC10170482 DOI: 10.1021/acsbiomaterials.2c01518] [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: 04/03/2023]
Abstract
It has become evident that physical stimuli of the cellular microenvironment transmit mechanical cues regulating key cellular functions, such as proliferation, migration, and malignant transformation. Accumulating evidence suggests that tumor cells face variable mechanical stimuli that may induce metabolic rewiring of tumor cells. However, the knowledge of how tumor cells adapt metabolism to external mechanical cues is still limited. We therefore designed soft 3D collagen scaffolds mimicking a pathological mechanical environment to decipher how liver tumor cells would adapt their metabolic activity to physical stimuli of the cellular microenvironment. Here, we report that the soft 3D microenvironment upregulates the glycolysis of HepG2 and Alexander cells. Both cell lines adapt their mitochondrial activity and function under growth in the soft 3D microenvironment. Cells grown in the soft 3D microenvironment exhibit marked mitochondrial depolarization, downregulation of mitochondrially encoded cytochrome c oxidase I, and slow proliferation rate in comparison with stiff monolayer cultures. Our data reveal the coupling of liver tumor glycolysis to mechanical cues. It is proposed here that soft 3D collagen scaffolds can serve as a useful model for future studies of mechanically regulated cellular functions of various liver (potentially other tissues as well) tumor cells.
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Affiliation(s)
- Adam Frtús
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
| | - Barbora Smolková
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
| | - Mariia Uzhytchak
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
| | - Mariia Lunova
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
- Institute for Clinical & Experimental Medicine (IKEM), Prague 14021, Czech Republic
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), Prague 14021, Czech Republic
| | - Yuriy Petrenko
- Department of Neuroregeneration, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague 14220, Czech Republic
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
| | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
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10
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Frtús A, Smolková B, Uzhytchak M, Lunova M, Jirsa M, Henry SJW, Dejneka A, Stephanopoulos N, Lunov O. The interactions between DNA nanostructures and cells: A critical overview from a cell biology perspective. Acta Biomater 2022; 146:10-22. [PMID: 35523414 DOI: 10.1016/j.actbio.2022.04.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 11/18/2022]
Abstract
DNA nanotechnology has yielded remarkable advances in composite materials with diverse applications in biomedicine. The specificity and predictability of building 3D structures at the nanometer scale make DNA nanotechnology a promising tool for uses in biosensing, drug delivery, cell modulation, and bioimaging. However, for successful translation of DNA nanostructures to real-world applications, it is crucial to understand how they interact with living cells, and the consequences of such interactions. In this review, we summarize the current state of knowledge on the interactions of DNA nanostructures with cells. We identify key challenges, from a cell biology perspective, that influence progress towards the clinical translation of DNA nanostructures. We close by providing an outlook on what questions must be addressed to accelerate the clinical translation of DNA nanostructures. STATEMENT OF SIGNIFICANCE: Self-assembled DNA nanostructures (DNs) offers unique opportunities to overcome persistent challenges in the nanobiotechnology field. However, the interactions between engineered DNs and living cells are still not well defined. Critical systematization of current cellular models and biological responses triggered by DNs is a crucial foundation for the successful clinical translation of DNA nanostructures. Moreover, such an analysis will identify the pitfalls and challenges that are present in the field, and provide a basis for overcoming those challenges.
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Affiliation(s)
- Adam Frtús
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
| | - Barbora Smolková
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
| | - Mariia Uzhytchak
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
| | - Mariia Lunova
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic; Institute for Clinical & Experimental Medicine (IKEM), Prague, 14021, Czech Republic
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), Prague, 14021, Czech Republic
| | - Skylar J W Henry
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85281, United States; Biodesign Center for Molecular Design and Biomimetics, Arizona State University, Tempe, AZ 85281, United States
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
| | - Nicholas Stephanopoulos
- School of Molecular Sciences, Arizona State University, Tempe, AZ, 85281, United States; Biodesign Center for Molecular Design and Biomimetics, Arizona State University, Tempe, AZ 85281, United States.
| | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic.
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11
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Zablotskii V, Polyakova T, Dejneka A. Effects of High Magnetic Fields on the Diffusion of Biologically Active Molecules. Cells 2021; 11:cells11010081. [PMID: 35011642 PMCID: PMC8750908 DOI: 10.3390/cells11010081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 11/24/2021] [Revised: 12/23/2021] [Accepted: 12/26/2021] [Indexed: 12/16/2022] Open
Abstract
The diffusion of biologically active molecules is a ubiquitous process, controlling many mechanisms and the characteristic time scales for pivotal processes in living cells. Here, we show how a high static magnetic field (MF) affects the diffusion of paramagnetic and diamagnetic species including oxygen, hemoglobin, and drugs. We derive and solve the equation describing diffusion of such biologically active molecules in the presence of an MF as well as reveal the underlying mechanism of the MF’s effect on diffusion. We found that a high MF accelerates diffusion of diamagnetic species while slowing the diffusion of paramagnetic molecules in cell cytoplasm. When applied to oxygen and hemoglobin diffusion in red blood cells, our results suggest that an MF may significantly alter the gas exchange in an erythrocyte and cause swelling. Our prediction that the diffusion rate and characteristic time can be controlled by an MF opens new avenues for experimental studies foreseeing numerous biomedical applications.
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Affiliation(s)
- Vitalii Zablotskii
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (T.P.); (A.D.)
- International Magnetobiology Frontier Research Center, Hefei 230031, China
- Correspondence:
| | - Tatyana Polyakova
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (T.P.); (A.D.)
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (T.P.); (A.D.)
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12
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Forinová M, Pilipenco A, Víšová I, Lynn NS, Dostálek J, Mašková H, Hönig V, Palus M, Selinger M, Kočová P, Dyčka F, Štěrba J, Houska M, Vrabcová M, Horák P, Anthi J, Tung CP, Yu CM, Chen CY, Huang YC, Tsai PH, Lin SY, Hsu HJ, Yang AS, Dejneka A, Vaisocherová-Lísalová H. Functionalized Terpolymer-Brush-Based Biointerface with Improved Antifouling Properties for Ultra-Sensitive Direct Detection of Virus in Crude Clinical Samples. ACS Appl Mater Interfaces 2021; 13:60612-60624. [PMID: 34902239 DOI: 10.1021/acsami.1c16930] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
New analytical techniques that overcome major drawbacks of current routinely used viral infection diagnosis methods, i.e., the long analysis time and laboriousness of real-time reverse-transcription polymerase chain reaction (qRT-PCR) and the insufficient sensitivity of "antigen tests", are urgently needed in the context of SARS-CoV-2 and other highly contagious viruses. Here, we report on an antifouling terpolymer-brush biointerface that enables the rapid and sensitive detection of SARS-CoV-2 in untreated clinical samples. The developed biointerface carries a tailored composition of zwitterionic and non-ionic moieties and allows for the significant improvement of antifouling capabilities when postmodified with biorecognition elements and exposed to complex media. When deployed on a surface of piezoelectric sensor and postmodified with human-cell-expressed antibodies specific to the nucleocapsid (N) protein of SARS-CoV-2, it made possible the quantitative analysis of untreated samples by a direct detection assay format without the need of additional amplification steps. Natively occurring N-protein-vRNA complexes, usually disrupted during the sample pre-treatment steps, were detected in the untreated clinical samples. This biosensor design improved the bioassay sensitivity to a clinically relevant limit of detection of 1.3 × 104 PFU/mL within a detection time of only 20 min. The high specificity toward N-protein-vRNA complexes was validated both by mass spectrometry and qRT-PCR. The performance characteristics were confirmed by qRT-PCR through a comparative study using a set of clinical nasopharyngeal swab samples. We further demonstrate the extraordinary fouling resistance of this biointerface through exposure to other commonly used crude biological samples (including blood plasma, oropharyngeal, stool, and nasopharyngeal swabs), measured via both the surface plasmon resonance and piezoelectric measurements, which highlights the potential to serve as a generic platform for a wide range of biosensing applications.
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Affiliation(s)
- Michala Forinová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Alina Pilipenco
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Ivana Víšová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - N Scott Lynn
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Jakub Dostálek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
- Austrian Institute of Technology GmbH, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria
| | - Hana Mašková
- Faculty of Science, University of South Bohemia, Branišovská 31a, 370 05 České Budějovice, Czech Republic
| | - Václav Hönig
- Institute of Parasitology, Biology Centre CAS, Branišovská 31, 370 05 České Budějovice, Czech Republic
- Veterinary Research Institute, Hudcova 70, 621 00 Brno, Czech Republic
| | - Martin Palus
- Institute of Parasitology, Biology Centre CAS, Branišovská 31, 370 05 České Budějovice, Czech Republic
- Veterinary Research Institute, Hudcova 70, 621 00 Brno, Czech Republic
| | - Martin Selinger
- Faculty of Science, University of South Bohemia, Branišovská 31a, 370 05 České Budějovice, Czech Republic
- Institute of Parasitology, Biology Centre CAS, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Pavlína Kočová
- Faculty of Science, University of South Bohemia, Branišovská 31a, 370 05 České Budějovice, Czech Republic
| | - Filip Dyčka
- Faculty of Science, University of South Bohemia, Branišovská 31a, 370 05 České Budějovice, Czech Republic
| | - Jan Štěrba
- Faculty of Science, University of South Bohemia, Branišovská 31a, 370 05 České Budějovice, Czech Republic
| | - Milan Houska
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Markéta Vrabcová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Petr Horák
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Judita Anthi
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Chao-Ping Tung
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Chung-Ming Yu
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Chi-Yung Chen
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Yu-Chuan Huang
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Pei-Hsun Tsai
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Szu-Yu Lin
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Hung-Ju Hsu
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - An-Suei Yang
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
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13
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Rusevich LL, Tyunina M, Kotomin EA, Nepomniashchaia N, Dejneka A. The electronic properties of SrTiO 3-δ with oxygen vacancies or substitutions. Sci Rep 2021; 11:23341. [PMID: 34857848 PMCID: PMC8639995 DOI: 10.1038/s41598-021-02751-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/17/2021] [Indexed: 12/14/2022] Open
Abstract
The electronic properties, including bandgap and conductivity, are critical for nearly all applications of multifunctional perovskite oxide ferroelectrics. Here we analysed possibility to induce semiconductor behaviour in these materials, which are basically insulators, by replacement of several percent of oxygen atoms with nitrogen, hydrogen, or vacancies. We explored this approach for one of the best studied members of the large family of ABO3 perovskite ferroelectrics - strontium titanate (SrTiO3). The atomic and electronic structure of defects were theoretically investigated using the large-scale first-principles calculations for both bulk crystal and thin films. The results of calculations were experimentally verified by studies of the optical properties at photon energies from 25 meV to 8.8 eV for in-situ prepared thin films. It was demonstrated that substitutions and vacancies prefer locations at surfaces or phase boundaries over those inside crystallites. At the same time, local states in the bandgap can be produced by vacancies located both inside the crystals and at the surface, but by nitrogen substitution only inside crystals. Wide-bandgap insulator phases were evidenced for all defects. Compared to pure SrTiO3 films, bandgap widening due to defects was theoretically predicted and experimentally detected.
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Affiliation(s)
- L L Rusevich
- Institute of Solid State Physics, University of Latvia, Kengaraga Str. 8, Riga, 1063, Latvia.
| | - M Tyunina
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, P. O. Box 4500, 90014, Oulu, Finland.
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18221, Prague, Czech Republic.
| | - E A Kotomin
- Institute of Solid State Physics, University of Latvia, Kengaraga Str. 8, Riga, 1063, Latvia
- Max Planck Institute for Solid State Research, Heisenberg Str. 1, 70569, Stuttgart, Germany
| | - N Nepomniashchaia
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18221, Prague, Czech Republic
| | - A Dejneka
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18221, Prague, Czech Republic
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14
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Smolková B, MacCulloch T, Rockwood TF, Liu M, Henry SJW, Frtús A, Uzhytchak M, Lunova M, Hof M, Jurkiewicz P, Dejneka A, Stephanopoulos N, Lunov O. Protein Corona Inhibits Endosomal Escape of Functionalized DNA Nanostructures in Living Cells. ACS Appl Mater Interfaces 2021; 13:46375-46390. [PMID: 34569777 PMCID: PMC9590277 DOI: 10.1021/acsami.1c14401] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
DNA nanostructures (DNs) can be designed in a controlled and programmable manner, and these structures are increasingly used in a variety of biomedical applications, such as the delivery of therapeutic agents. When exposed to biological liquids, most nanomaterials become covered by a protein corona, which in turn modulates their cellular uptake and the biological response they elicit. However, the interplay between living cells and designed DNs are still not well established. Namely, there are very limited studies that assess protein corona impact on DN biological activity. Here, we analyzed the uptake of functionalized DNs in three distinct hepatic cell lines. Our analysis indicates that cellular uptake is linearly dependent on the cell size. Further, we show that the protein corona determines the endolysosomal vesicle escape efficiency of DNs coated with an endosome escape peptide. Our study offers an important basis for future optimization of DNs as delivery systems for various biomedical applications.
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Affiliation(s)
- Barbora Smolková
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
| | - Tara MacCulloch
- Biodesign Center for Molecular Design and Biomimetics, Arizona State University, Tempe, Arizona 85287, United States
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - Tyler F Rockwood
- Biodesign Center for Molecular Design and Biomimetics, Arizona State University, Tempe, Arizona 85287, United States
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - Minghui Liu
- Biodesign Center for Molecular Design and Biomimetics, Arizona State University, Tempe, Arizona 85287, United States
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - Skylar J W Henry
- Biodesign Center for Molecular Design and Biomimetics, Arizona State University, Tempe, Arizona 85287, United States
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - Adam Frtús
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
| | - Mariia Uzhytchak
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
| | - Mariia Lunova
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
- Institute for Clinical & Experimental Medicine (IKEM), Prague 14021, Czech Republic
| | - Martin Hof
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague 18223, Czech Republic
| | - Piotr Jurkiewicz
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague 18223, Czech Republic
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
| | - Nicholas Stephanopoulos
- Biodesign Center for Molecular Design and Biomimetics, Arizona State University, Tempe, Arizona 85287, United States
- School of Molecular Sciences, Arizona State University, Tempe, Arizona 85287, United States
| | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
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15
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Fernandez-Checa JC, Bagnaninchi P, Ye H, Sancho-Bru P, Falcon-Perez JM, Royo F, Garcia-Ruiz C, Konu O, Miranda J, Lunov O, Dejneka A, Elfick A, McDonald A, Sullivan GJ, Aithal GP, Lucena MI, Andrade RJ, Fromenty B, Kranendonk M, Cubero FJ, Nelson LJ. Advanced preclinical models for evaluation of drug-induced liver injury - consensus statement by the European Drug-Induced Liver Injury Network [PRO-EURO-DILI-NET]. J Hepatol 2021; 75:935-959. [PMID: 34171436 DOI: 10.1016/j.jhep.2021.06.021] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/02/2021] [Accepted: 06/11/2021] [Indexed: 02/06/2023]
Abstract
Drug-induced liver injury (DILI) is a major cause of acute liver failure (ALF) and one of the leading indications for liver transplantation in Western societies. Given the wide use of both prescribed and over the counter drugs, DILI has become a major health issue for which there is a pressing need to find novel and effective therapies. Although significant progress has been made in understanding the molecular mechanisms underlying DILI, our incomplete knowledge of its pathogenesis and inability to predict DILI is largely due to both discordance between human and animal DILI in preclinical drug development and a lack of models that faithfully recapitulate complex pathophysiological features of human DILI. This is exemplified by the hepatotoxicity of acetaminophen (APAP) overdose, a major cause of ALF because of its extensive worldwide use as an analgesic. Despite intensive efforts utilising current animal and in vitro models, the mechanisms involved in the hepatotoxicity of APAP are still not fully understood. In this expert Consensus Statement, which is endorsed by the European Drug-Induced Liver Injury Network, we aim to facilitate and outline clinically impactful discoveries by detailing the requirements for more realistic human-based systems to assess hepatotoxicity and guide future drug safety testing. We present novel insights and discuss major players in APAP pathophysiology, and describe emerging in vitro and in vivo pre-clinical models, as well as advanced imaging and in silico technologies, which may improve prediction of clinical outcomes of DILI.
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Affiliation(s)
- Jose C Fernandez-Checa
- Cell Death and Proliferation, Institute of Biomedical Research of Barcelona (IIBB), Consejo Superior Investigaciones Científicas (CSIC), Spain; Liver Unit, Hospital Clínic, Barcelona, Spain; Instituto Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, 28029, Spain; USC Research Center for ALPD, Keck School of Medicine, Los Angeles, United States, CA 90033.
| | - Pierre Bagnaninchi
- Center for Regenerative Medicine, Institute for Regenerative and Repair, The University of Edinburgh, Edinburgh, UK, EH16 4UU; School of Engineering, Institute for Bioengineering, The University of Edinburgh, Faraday Building, Colin Maclaurin Road, EH9 3 DW, Scotland, UK
| | - Hui Ye
- Department of Immunology, Ophthalmology & ENT, Complutense University School of Medicine, 28040 Madrid, Spain; Health Research Institute Gregorio Marañón (IiSGM), 28007 Madrid, Spain
| | - Pau Sancho-Bru
- Instituto Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Juan M Falcon-Perez
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, 28029, Spain; Exosomes Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, 48160, Spain; IKERBASQUE, Basque Foundation for Science, Bilbao, Bizkaia, 48015, Spain
| | - Felix Royo
- Exosomes Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio, Bizkaia, 48160, Spain
| | - Carmen Garcia-Ruiz
- Cell Death and Proliferation, Institute of Biomedical Research of Barcelona (IIBB), Consejo Superior Investigaciones Científicas (CSIC), Spain; Liver Unit, Hospital Clínic, Barcelona, Spain; Instituto Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), Universitat de Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, 28029, Spain; USC Research Center for ALPD, Keck School of Medicine, Los Angeles, United States, CA 90033
| | - Ozlen Konu
- Department of Molecular Biology and Genetics, Faculty of Science, Bilkent University, Ankara, Turkey; Interdisciplinary Neuroscience Program, Bilkent University, Ankara, Turkey; UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara, Turkey
| | - Joana Miranda
- Research Institute for iMedicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Alistair Elfick
- Institute for Bioengineering, School of Engineering, The University of Edinburgh, Edinburgh EH8 3DW, UK
| | - Alison McDonald
- Institute for Bioengineering, School of Engineering, The University of Edinburgh, Edinburgh EH8 3DW, UK
| | - Gareth J Sullivan
- University of Oslo and the Oslo University Hospital, Oslo, Norway; Hybrid Technology Hub-Center of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway; Department of Pediatric Research, Oslo University Hosptial, Oslo, Norway
| | - Guruprasad P Aithal
- National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospital NHS Trust and University of Nottingham, Nottingham, UK
| | - M Isabel Lucena
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, 28029, Spain; Servicio de Farmacología Clínica, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Virgen de la Victoria, UICEC SCReN, Universidad de Málaga, Málaga, Spain
| | - Raul J Andrade
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, 28029, Spain; Unidad de Gestión Clínica de Enfermedades Digestivas, Instituto de Investigación, Biomédica de Málaga-IBIMA, Hospital Universitario Virgen de la Victoria, Universidad de Málaga, Malaga, Spain
| | - Bernard Fromenty
- INSERM, Univ Rennes, INRAE, Institut NUMECAN (Nutrition Metabolisms and Cancer) UMR_A 1341, UMR_S 1241, F-35000 Rennes, France
| | - Michel Kranendonk
- Center for Toxicogenomics and Human Health (ToxOmics), Genetics, Oncology and Human Toxicology, NOVA Medical School, Faculty of Medical Sciences, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Francisco Javier Cubero
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, 28029, Spain; Department of Immunology, Ophthalmology & ENT, Complutense University School of Medicine, 28040 Madrid, Spain; Health Research Institute Gregorio Marañón (IiSGM), 28007 Madrid, Spain
| | - Leonard J Nelson
- Center for Regenerative Medicine, Institute for Regenerative and Repair, The University of Edinburgh, Edinburgh, UK, EH16 4UU; School of Engineering, Institute for Bioengineering, The University of Edinburgh, Faraday Building, Colin Maclaurin Road, EH9 3 DW, Scotland, UK; Institute of Biological Chemistry, Biophysics and Bioengineering (IB3), School of Engineering and Physical Sciences (EPS), Heriot-Watt University, Edinburgh EH12 2AS, Scotland, UK.
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16
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Tyunina M, Pacherova O, Kocourek T, Dejneka A. Anisotropic chemical expansion due to oxygen vacancies in perovskite films. Sci Rep 2021; 11:15247. [PMID: 34315921 PMCID: PMC8316387 DOI: 10.1038/s41598-021-93968-1] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 06/29/2021] [Indexed: 11/09/2022] Open
Abstract
In scientifically intriguing and technologically important multifunctional ABO3 perovskite oxides, oxygen vacancies are most common defects. They cause lattice expansion and can alter the key functional properties. Here, it is demonstrated that contrary to weak isotropic expansion in bulk samples, oxygen vacancies produce strong anisotropic strain in epitaxial thin films. This anisotropic chemical strain is explained by preferential orientation of elastic dipoles of the vacancies. Elastic interaction of the dipoles with substrate-imposed misfit strain is suggested to define the dipolar orientation. Such elastic behavior of oxygen vacancies is anticipated to be general for perovskite films and have critical impacts on the film synthesis and response functions.
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Affiliation(s)
- M Tyunina
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, P. O. Box 4500, 90014, Oulu, Finland.
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18221, Prague, Czech Republic.
| | - O Pacherova
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18221, Prague, Czech Republic
| | - T Kocourek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18221, Prague, Czech Republic
| | - A Dejneka
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18221, Prague, Czech Republic
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17
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Harrison SP, Baumgarten SF, Verma R, Lunov O, Dejneka A, Sullivan GJ. Liver Organoids: Recent Developments, Limitations and Potential. Front Med (Lausanne) 2021; 8:574047. [PMID: 34026769 PMCID: PMC8131532 DOI: 10.3389/fmed.2021.574047] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [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: 06/18/2020] [Accepted: 03/29/2021] [Indexed: 12/12/2022] Open
Abstract
Liver cell types derived from induced pluripotent stem cells (iPSCs) share the potential to investigate development, toxicity, as well as genetic and infectious disease in ways currently limited by the availability of primary tissue. With the added advantage of patient specificity, which can play a role in all of these areas. Many iPSC differentiation protocols focus on 3 dimensional (3D) or organotypic differentiation, as these offer the advantage of more closely mimicking in vivo systems including; the formation of tissue like architecture and interactions/crosstalk between different cell types. Ultimately such models have the potential to be used clinically and either with or more aptly, in place of animal models. Along with the development of organotypic and micro-tissue models, there will be a need to co-develop imaging technologies to enable their visualization. A variety of liver models termed "organoids" have been reported in the literature ranging from simple spheres or cysts of a single cell type, usually hepatocytes, to those containing multiple cell types combined during the differentiation process such as hepatic stellate cells, endothelial cells, and mesenchymal cells, often leading to an improved hepatic phenotype. These allow specific functions or readouts to be examined such as drug metabolism, protein secretion or an improved phenotype, but because of their relative simplicity they lack the flexibility and general applicability of ex vivo tissue culture. In the liver field these are more often constructed rather than developed together organotypically as seen in other organoid models such as brain, kidney, lung and intestine. Having access to organotypic liver like surrogates containing multiple cell types with in vivo like interactions/architecture, would provide vastly improved models for disease, toxicity and drug development, combining disciplines such as microfluidic chip technology with organoids and ultimately paving the way to new therapies.
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Affiliation(s)
- Sean Philip Harrison
- Hybrid Technology Hub–Center of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Department of Pediatric Research, Oslo University Hospital, Oslo, Norway
| | - Saphira Felicitas Baumgarten
- Hybrid Technology Hub–Center of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Department of Pediatric Research, Oslo University Hospital, Oslo, Norway
| | - Rajneesh Verma
- Hybrid Technology Hub–Center of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Department of Pediatric Research, Oslo University Hospital, Oslo, Norway
| | - Oleg Lunov
- Institute of Physics of the Czech Academy of Sciences, Prague, Czechia
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, Prague, Czechia
| | - Gareth John Sullivan
- Hybrid Technology Hub–Center of Excellence, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
- Department of Pediatric Research, Oslo University Hospital, Oslo, Norway
- Norwegian Center for Stem Cell Research, Oslo University Hospital, University of Oslo, Oslo, Norway
- Institute of Immunology, Oslo University Hospital, Oslo, Norway
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18
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Lunova M, Kubovciak J, Smolková B, Uzhytchak M, Michalova K, Dejneka A, Strnad P, Lunov O, Jirsa M. Expression of Interferons Lambda 3 and 4 Induces Identical Response in Human Liver Cell Lines Depending Exclusively on Canonical Signaling. Int J Mol Sci 2021; 22:2560. [PMID: 33806448 PMCID: PMC7961969 DOI: 10.3390/ijms22052560] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 12/16/2020] [Revised: 02/26/2021] [Accepted: 02/27/2021] [Indexed: 12/12/2022] Open
Abstract
Lambda interferons mediate antiviral immunity by inducing interferon-stimulated genes (ISGs) in epithelial tissues. A common variant rs368234815TT/∆G creating functional gene from an IFNL4 pseudogene is associated with the expression of major ISGs in the liver but impaired clearance of hepatitis C. To explain this, we compared Halo-tagged and non-tagged IFNL3 and IFNL4 signaling in liver-derived cell lines. Transfection with non-tagged IFNL3, non-tagged IFNL4 and Halo-tagged IFNL4 led to a similar degree of JAK-STAT activation and ISG induction; however, the response to transfection with Halo-tagged IFNL3 was lower and delayed. Transfection with non-tagged IFNL3 or IFNL4 induced no transcriptome change in the cells lacking either IL10R2 or IFNLR1 receptor subunits. Cytosolic overexpression of signal peptide-lacking IFNL3 or IFNL4 in wild type cells did not interfere with JAK-STAT signaling triggered by interferons in the medium. Finally, expression profile changes induced by transfection with non-tagged IFNL3 and IFNL4 were highly similar. These data do not support the hypothesis about IFNL4-specific non-canonical signaling and point out that functional studies conducted with tagged interferons should be interpreted with caution.
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Affiliation(s)
- Mariia Lunova
- Institute for Clinical & Experimental Medicine (IKEM), 14021 Prague, Czech Republic;
| | - Jan Kubovciak
- Institute of Molecular Genetics of the Czech Academy of Sciences, 14220 Prague, Czech Republic;
| | - Barbora Smolková
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (M.U.); (A.D.); (O.L.)
| | - Mariia Uzhytchak
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (M.U.); (A.D.); (O.L.)
| | - Kyra Michalova
- Institute of Medical Biochemistry and Laboratory Diagnostics, General University Hospital and 1st Faculty of Medicine of Charles University, 12808 Prague, Czech Republic;
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (M.U.); (A.D.); (O.L.)
| | - Pavel Strnad
- Department of Internal Medicine III, University Hospital RWTH (Rheinisch-Westfälisch Technische Hochschule) Aachen, 52062 Aachen, Germany;
| | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (M.U.); (A.D.); (O.L.)
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), 14021 Prague, Czech Republic;
- Institute of Medical Biochemistry and Laboratory Diagnostics, General University Hospital and 1st Faculty of Medicine of Charles University, 12808 Prague, Czech Republic;
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Yudin P, Shapovalov K, Sluka T, Peräntie J, Jantunen H, Dejneka A, Tyunina M. Mobile and immobile boundaries in ferroelectric films. Sci Rep 2021; 11:1899. [PMID: 33479382 PMCID: PMC7820330 DOI: 10.1038/s41598-021-81516-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 12/01/2020] [Accepted: 01/05/2021] [Indexed: 11/17/2022] Open
Abstract
The intrinsic mobile interfaces in ferroelectrics—the domain walls can drive and enhance diverse ferroelectric properties, essential for modern applications. Control over the motion of domain walls is of high practical importance. Here we analyse theoretically and show experimentally epitaxial ferroelectric films, where mobile domain walls coexist and interact with immobile growth-induced interfaces—columnar boundaries. Whereas these boundaries do not disturb the long-range crystal order, they affect the behaviour of domain walls in a peculiar selective manner. The columnar boundaries substantially modify the behaviour of non-ferroelastic domains walls, but have negligible impact on the ferroelastic ones. The results suggest that introduction of immobile boundaries into ferroelectric films is a viable method to modify domain structures and dynamic responses at nano-scale that may serve to functionalization of a broader range of ferroelectric films where columnar boundaries naturally appear as a result of the 3D growth.
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Affiliation(s)
- P Yudin
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18221, Praha 8, Czech Republic. .,Kutateladze Institute of Thermophysics, Siberian Branch of Russian Academy of Science, Lavrent'eva av. 1, Novosibirsk, Russia.
| | - K Shapovalov
- Institutut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, 08193, Bellaterra, Spain.,CNRS, Université de Bordeaux, ICMCB, UPR, 9048, 33600, Pessac, France
| | - T Sluka
- CREAL SA, Chemin du Paqueret 1A, CH-1025, Saint-Sulpice, Switzerland
| | - J Peräntie
- Microelectronics Research Unit, University of Oulu, P.O. Box 4500, 90014, Oulu, Finland
| | - H Jantunen
- Microelectronics Research Unit, University of Oulu, P.O. Box 4500, 90014, Oulu, Finland
| | - A Dejneka
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18221, Praha 8, Czech Republic
| | - M Tyunina
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18221, Praha 8, Czech Republic.,Microelectronics Research Unit, University of Oulu, P.O. Box 4500, 90014, Oulu, Finland
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20
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Kovaleva NN, Kusmartsev FV, Mekhiya AB, Trunkin IN, Chvostova D, Davydov AB, Oveshnikov LN, Pacherova O, Sherstnev IA, Kusmartseva A, Kugel KI, Dejneka A, Pudonin FA, Luo Y, Aronzon BA. Control of Mooij correlations at the nanoscale in the disordered metallic Ta-nanoisland FeNi multilayers. Sci Rep 2020; 10:21172. [PMID: 33273549 PMCID: PMC7713312 DOI: 10.1038/s41598-020-78185-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 07/07/2020] [Accepted: 11/17/2020] [Indexed: 11/08/2022] Open
Abstract
Localisation phenomena in highly disordered metals close to the extreme conditions determined by the Mott-Ioffe-Regel (MIR) limit when the electron mean free path is approximately equal to the interatomic distance is a challenging problem. Here, to shed light on these localisation phenomena, we studied the dc transport and optical conductivity properties of nanoscaled multilayered films composed of disordered metallic Ta and magnetic FeNi nanoisland layers, where ferromagnetic FeNi nanoislands have giant magnetic moments of 10[Formula: see text]-10[Formula: see text] Bohr magnetons ([Formula: see text]). In these multilayered structures, FeNi nanoisland giant magnetic moments are interacting due to the indirect exchange forces acting via the Ta electron subsystem. We discovered that the localisation phenomena in the disordered Ta layer lead to a decrease in the Drude contribution of free charge carriers and the appearance of the low-energy electronic excitations in the 1-2 eV spectral range characteristic of electronic correlations, which may accompany the formation of electronic inhomogeneities. From the consistent results of the dc transport and optical studies we found that with an increase in the FeNi layer thickness across the percolation threshold evolution from the superferromagnetic to ferromagnetic behaviour within the FeNi layer leads to the delocalisation of Ta electrons from the associated localised electronic states. On the contrary, we discovered that when the FeNi layer is discontinuous and represented by randomly distributed superparamagnetic FeNi nanoislands, the Ta layer normalized dc conductivity falls down below the MIR limit by about 60%. The discovered effect leading to the dc conductivity fall below the MIR limit can be associated with non-ergodicity and purely quantum (many-body) localisation phenomena, which need to be challenged further.
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Affiliation(s)
- N N Kovaleva
- Department of Physics, Loughborough University, Loughborough, LE11 3TU, UK.
- P.N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia.
| | - F V Kusmartsev
- Department of Physics, Loughborough University, Loughborough, LE11 3TU, UK
- Micro/Nano Fabrication Laboratory (MNFL), Microsystem and Terahertz Research Center, Chengdu, 610200, China
| | - A B Mekhiya
- P.N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia
| | - I N Trunkin
- National Research Center, Kurchatov Institute, Moscow, 123182, Russia
| | - D Chvostova
- Institute of Physics, Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
| | - A B Davydov
- P.N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia
| | - L N Oveshnikov
- P.N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia
- National Research Center, Kurchatov Institute, Moscow, 123182, Russia
| | - O Pacherova
- Institute of Physics, Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
| | - I A Sherstnev
- P.N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia
| | - A Kusmartseva
- Department of Physics, Loughborough University, Loughborough, LE11 3TU, UK
| | - K I Kugel
- Institute for Theoretical and Applied Electrodynamics, Russian Academy of Sciences, Moscow, 125412, Russia
- National Research University Higher School of Economics, Moscow, 101000, Russia
| | - A Dejneka
- Institute of Physics, Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
| | - F A Pudonin
- P.N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Y Luo
- Micro/Nano Fabrication Laboratory (MNFL), Microsystem and Terahertz Research Center, Chengdu, 610200, China
| | - B A Aronzon
- P.N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russia
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21
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Frtús A, Smolková B, Uzhytchak M, Lunova M, Jirsa M, Kubinová Š, Dejneka A, Lunov O. Analyzing the mechanisms of iron oxide nanoparticles interactions with cells: A road from failure to success in clinical applications. J Control Release 2020; 328:59-77. [DOI: 10.1016/j.jconrel.2020.08.036] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/18/2020] [Accepted: 08/19/2020] [Indexed: 12/31/2022]
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22
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Frtús A, Smolková B, Uzhytchak M, Lunova M, Jirsa M, Hof M, Jurkiewicz P, Lozinsky VI, Wolfová L, Petrenko Y, Kubinová Š, Dejneka A, Lunov O. Hepatic Tumor Cell Morphology Plasticity under Physical Constraints in 3D Cultures Driven by YAP-mTOR Axis. Pharmaceuticals (Basel) 2020; 13:ph13120430. [PMID: 33260691 PMCID: PMC7759829 DOI: 10.3390/ph13120430] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 10/01/2020] [Revised: 11/23/2020] [Accepted: 11/26/2020] [Indexed: 02/06/2023] Open
Abstract
Recent studies undoubtedly show that the mammalian target of rapamycin (mTOR) and the Hippo–Yes-associated protein 1 (YAP) pathways are important mediators of mechanical cues. The crosstalk between these pathways as well as de-regulation of their signaling has been implicated in multiple tumor types, including liver tumors. Additionally, physical cues from 3D microenvironments have been identified to alter gene expression and differentiation of different cell lineages. However, it remains incompletely understood how physical constraints originated in 3D cultures affect cell plasticity and what the key mediators are of such process. In this work, we use collagen scaffolds as a model of a soft 3D microenvironment to alter cellular size and study the mechanotransduction that regulates that process. We show that the YAP-mTOR axis is a downstream effector of 3D cellular culture-driven mechanotransduction. Indeed, we found that cell mechanics, dictated by the physical constraints of 3D collagen scaffolds, profoundly affect cellular proliferation in a YAP–mTOR-mediated manner. Functionally, the YAP–mTOR connection is key to mediate cell plasticity in hepatic tumor cell lines. These findings expand the role of YAP–mTOR-driven mechanotransduction to the control hepatic tumor cellular responses under physical constraints in 3D cultures. We suggest a tentative mechanism, which coordinates signaling rewiring with cytoplasmic restructuring during cell growth in 3D microenvironments.
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Affiliation(s)
- Adam Frtús
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (A.F.); (B.S.); (M.U.); (M.L.); (Š.K.)
| | - Barbora Smolková
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (A.F.); (B.S.); (M.U.); (M.L.); (Š.K.)
| | - Mariia Uzhytchak
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (A.F.); (B.S.); (M.U.); (M.L.); (Š.K.)
| | - Mariia Lunova
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (A.F.); (B.S.); (M.U.); (M.L.); (Š.K.)
- Institute for Clinical & Experimental Medicine (IKEM), 14021 Prague, Czech Republic;
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), 14021 Prague, Czech Republic;
| | - Martin Hof
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, 18223 Prague, Czech Republic; (M.H.); (P.J.)
| | - Piotr Jurkiewicz
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, 18223 Prague, Czech Republic; (M.H.); (P.J.)
| | - Vladimir I. Lozinsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russia;
| | - Lucie Wolfová
- Department of Biomaterials and Biophysical Methods, Institute of Experimental Medicine of the Czech Academy of Sciences, 14220 Prague, Czech Republic; (L.W.); (Y.P.)
- Department of Tissue Engineering, Contipro a.s., 56102 Dolni Dobrouc, Czech Republic
| | - Yuriy Petrenko
- Department of Biomaterials and Biophysical Methods, Institute of Experimental Medicine of the Czech Academy of Sciences, 14220 Prague, Czech Republic; (L.W.); (Y.P.)
| | - Šárka Kubinová
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (A.F.); (B.S.); (M.U.); (M.L.); (Š.K.)
- Department of Biomaterials and Biophysical Methods, Institute of Experimental Medicine of the Czech Academy of Sciences, 14220 Prague, Czech Republic; (L.W.); (Y.P.)
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (A.F.); (B.S.); (M.U.); (M.L.); (Š.K.)
- Correspondence: (A.D.); (O.L.); Tel.: +420-2660-52141 (A.D.); +420-2660-52131 (O.L.)
| | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (A.F.); (B.S.); (M.U.); (M.L.); (Š.K.)
- Correspondence: (A.D.); (O.L.); Tel.: +420-2660-52141 (A.D.); +420-2660-52131 (O.L.)
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Zablotskii V, Polyakova T, Dejneka A. Modulation of the Cell Membrane Potential and Intracellular Protein Transport by High Magnetic Fields. Bioelectromagnetics 2020; 42:27-36. [PMID: 33179821 DOI: 10.1002/bem.22309] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 05/21/2020] [Revised: 10/16/2020] [Accepted: 10/22/2020] [Indexed: 01/26/2023]
Abstract
To explore cellular responses to high magnetic fields (HMF), we present a model of the interactions of cells with a homogeneous HMF that accounts for the magnetic force exerted on paramagnetic/diamagnetic species. There are various chemical species inside a living cell, many of which may have large concentration gradients. Thus, when an HMF is applied to a cell, the concentration-gradient magnetic forces act on paramagnetic or diamagnetic species and can either assist or oppose large particle movement through the cytoplasm. We demonstrate possibilities for changing the machinery in living cells with HMFs and predict two new mechanisms for modulating cellular functions with HMFs via (i) changes in the membrane potential and (ii) magnetically assisted intracellular diffusiophoresis of large proteins. By deriving a generalized form for the Nernst equation, we find that an HMF can change the membrane potential of the cell and thus have a significant impact on the properties and biological functionality of cells. The elaborated model provides a universal framework encompassing current studies on controlling cell functions by high static magnetic fields. Bioelectromagnetics. 2021;42:27-36. © 2020 Bioelectromagnetics Society.
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Affiliation(s)
- Vitalii Zablotskii
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Tatyana Polyakova
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
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Tyunina M, Pacherova O, Nepomniashchaia N, Vetokhina V, Cichon S, Kocourek T, Dejneka A. In situ anion-doped epitaxial strontium titanate films. Phys Chem Chem Phys 2020; 22:24796-24800. [PMID: 33107506 DOI: 10.1039/d0cp03644g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Misfit strains arising from a film-substrate mismatch can induce novel phases and properties in the epitaxial films of perovskite oxides. Here we employ yet another effect, namely, strain-assisted formation of oxygen vacancies. We demonstrate the misfit-promoted presence of oxygen vacancies and related substitutional incorporation of anion dopants in the epitaxial films of archetypal perovskite oxide SrTiO3. Both the oxygen vacancies and hydrogen or nitrogen dopants are introduced in situ during the pulsed-laser deposition of the films using compressive substrates. The films exhibit peculiar chemical expansion and optical properties, which are consistent with substitutional anion doping.
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Affiliation(s)
- M Tyunina
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, P. O. Box 4500, FI-90014, Finland.
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Smolková B, Frtús A, Uzhytchak M, Lunova M, Kubinová Š, Dejneka A, Lunov O. Critical Analysis of Non-Thermal Plasma-Driven Modulation of Immune Cells from Clinical Perspective. Int J Mol Sci 2020; 21:ijms21176226. [PMID: 32872159 PMCID: PMC7503900 DOI: 10.3390/ijms21176226] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 07/10/2020] [Revised: 07/30/2020] [Accepted: 08/26/2020] [Indexed: 02/07/2023] Open
Abstract
The emerged field of non-thermal plasma (NTP) shows great potential in the alteration of cell redox status, which can be utilized as a promising therapeutic implication. In recent years, the NTP field considerably progresses in the modulation of immune cell function leading to promising in vivo results. In fact, understanding the underlying cellular mechanisms triggered by NTP remains incomplete. In order to boost the field closer to real-life clinical applications, there is a need for a critical overview of the current state-of-the-art. In this review, we conduct a critical analysis of the NTP-triggered modulation of immune cells. Importantly, we analyze pitfalls in the field and identify persisting challenges. We show that the identification of misconceptions opens a door to the development of a research strategy to overcome these limitations. Finally, we propose the idea that solving problems highlighted in this review will accelerate the clinical translation of NTP-based treatments.
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Affiliation(s)
- Barbora Smolková
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
| | - Adam Frtús
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
| | - Mariia Uzhytchak
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
| | - Mariia Lunova
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
- Institute for Clinical & Experimental Medicine (IKEM), 14021 Prague, Czech Republic
| | - Šárka Kubinová
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
- Department of Biomaterials and Biophysical Methods, Institute of Experimental Medicine of the Czech Academy of Sciences, 14220 Prague, Czech Republic
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
| | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (B.S.); (A.F.); (M.U.); (M.L.); (Š.K.); (A.D.)
- Correspondence: ; Tel.: +420-2660-52131
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Víšová I, Smolková B, Uzhytchak M, Vrabcová M, Chafai DE, Houska M, Pastucha M, Skládal P, Farka Z, Dejneka A, Vaisocherová-Lísalová H. Functionalizable Antifouling Coatings as Tunable Platforms for the Stress-Driven Manipulation of Living Cell Machinery. Biomolecules 2020; 10:biom10081146. [PMID: 32764330 PMCID: PMC7464033 DOI: 10.3390/biom10081146] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/24/2020] [Accepted: 07/30/2020] [Indexed: 02/07/2023] Open
Abstract
Cells are continuously sensing their microenvironment and subsequently respond to different physicochemical cues by the activation or inhibition of different signaling pathways. To study a very complex cellular response, it is necessary to diminish background environmental influences and highlight the particular event. However, surface-driven nonspecific interactions of the abundant biomolecules from the environment influence the targeted cell response significantly. Yes-associated protein (YAP) translocation may serve as a marker of human hepatocellular carcinoma (Huh7) cell responses to the extracellular matrix and surface-mediated stresses. Here, we propose a platform of tunable functionable antifouling poly(carboxybetain) (pCB)-based brushes to achieve a molecularly clean background for studying arginine, glycine, and aspartic acid (RGD)-induced YAP-connected mechanotransduction. Using two different sets of RGD-functionalized zwitterionic antifouling coatings with varying compositions of the antifouling layer, a clear correlation of YAP distribution with RGD functionalization concentrations was observed. On the other hand, commonly used surface passivation by the oligo(ethylene glycol)-based self-assembled monolayer (SAM) shows no potential to induce dependency of the YAP distribution on RGD concentrations. The results indicate that the antifouling background is a crucial component of surface-based cellular response studies, and pCB-based zwitterionic antifouling brush architectures may serve as a potential next-generation easily functionable surface platform for the monitoring and quantification of cellular processes.
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Affiliation(s)
- Ivana Víšová
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Barbora Smolková
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Mariia Uzhytchak
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Markéta Vrabcová
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Djamel Eddine Chafai
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Milan Houska
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Matěj Pastucha
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (M.P.); (P.S.)
| | - Petr Skládal
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (M.P.); (P.S.)
| | - Zdeněk Farka
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (M.P.); (P.S.)
- Correspondence: (Z.F.); (H.V.-L.); Tel.: +420-549497674 (Z.F.); +420-266052993 (H.V.-L.)
| | - Alexandr Dejneka
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Hana Vaisocherová-Lísalová
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
- Correspondence: (Z.F.); (H.V.-L.); Tel.: +420-549497674 (Z.F.); +420-266052993 (H.V.-L.)
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27
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Víšová I, Vrabcová M, Forinová M, Zhigunová Y, Mironov V, Houska M, Bittrich E, Eichhorn KJ, Hashim H, Schovánek P, Dejneka A, Vaisocherová-Lísalová H. Surface Preconditioning Influences the Antifouling Capabilities of Zwitterionic and Nonionic Polymer Brushes. Langmuir 2020; 36:8485-8493. [PMID: 32506911 DOI: 10.1021/acs.langmuir.0c00996] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Polymer brushes not only represent emerging surface platforms for numerous bioanalytical and biological applications but also create advanced surface-tethered systems to mimic real-life biological processes. In particular, zwitterionic and nonionic polymer brushes have been intensively studied because of their extraordinary resistance to nonspecific adsorption of biomolecules (antifouling characteristics) as well as the ability to be functionalized with bioactive molecules. However, the relation between antifouling behavior in real-world biological media and structural changes of polymer brushes induced by surface preconditioning in different environments remains unexplored. In this work, we use multiple methods to study the structural properties of numerous brushes under variable ionic concentrations and determine the impact of these changes on resistance to fouling from undiluted blood plasma. We describe different mechanisms of swelling, depending on both the polymer brush coating properties and the environmental conditions that affect changes in both hydration levels and thickness. Using both fluorescent and surface plasmon resonance methods, we found that the antifouling behavior of these brushes is strongly dependent on the aforementioned structural changes. Moreover, preconditioning of the brush coatings (incubation at a variable salt concentration or drying) prior to biomolecule interaction may significantly improve the antifouling performance. These results suggest a new simple approach to improve the antifouling behavior of polymer brushes. In addition, the results herein enhance the understanding for improved design of antifouling and bioresponsive brushes employed in biosensor and biomimetic applications.
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Affiliation(s)
- Ivana Víšová
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | - Markéta Vrabcová
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | - Michala Forinová
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | - Yulia Zhigunová
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | - Vasilii Mironov
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | - Milan Houska
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | - Eva Bittrich
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, Dresden 01069, Germany
| | - Klaus-Jochen Eichhorn
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, Dresden 01069, Germany
| | - Hisham Hashim
- National University of Science and Technology (MISIS), Leninskiy prospekt 2, Moscow 119049, Russia
- Faculty of Science, Tanta University, Al-Geish Street, Tanta 31527, Egypt
| | - Petr Schovánek
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
- Palacký University Olomouc, 17. listopadu 12, Olomouc 77146, Czech Republic
| | - Alexandr Dejneka
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
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28
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Levada K, Pshenichnikov S, Omelyanchik A, Rodionova V, Nikitin A, Savchenko A, Schetinin I, Zhukov D, Abakumov M, Majouga A, Lunova M, Jirsa M, Smolková B, Uzhytchak M, Dejneka A, Lunov O. Progressive lysosomal membrane permeabilization induced by iron oxide nanoparticles drives hepatic cell autophagy and apoptosis. Nano Converg 2020; 7:17. [PMID: 32424769 PMCID: PMC7235155 DOI: 10.1186/s40580-020-00228-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 04/29/2020] [Indexed: 05/02/2023]
Abstract
Iron oxide nanoparticles (IONs) are frequently used in various biomedical applications, in particular as magnetic resonance imaging contrast agents in liver imaging. Indeed, number of IONs have been withdrawn due to their poor clinical performance. Yet comprehensive understanding of their interactions with hepatocytes remains relatively limited. Here we investigated how iron oxide nanocubes (IO-cubes) and clusters of nanocubes (IO-clusters) affect distinct human hepatic cell lines. The viability of HepG2, Huh7 and Alexander cells was concentration-dependently decreased after exposure to either IO-cubes or IO-clusters. We found similar cytotoxicity levels in three cell lines triggered by both nanoparticle formulations. Our data indicate that different expression levels of Bcl-2 predispose cell death signaling mediated by nanoparticles. Both nanoparticles induced rather apoptosis than autophagy in HepG2. Contrary, IO-cubes and IO-clusters trigger distinct cell death signaling events in Alexander and Huh7 cells. Our data clarifies the mechanism by which cubic nanoparticles induce autophagic flux and the mechanism of subsequent toxicity. These findings imply that the cytotoxicity of ION-based contrast agents should be carefully considered, particularly in patients with liver diseases.
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Affiliation(s)
- Kateryna Levada
- Institute of Physics, Mathematics and Information Technology, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Stanislav Pshenichnikov
- Institute of Physics, Mathematics and Information Technology, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Alexander Omelyanchik
- Institute of Physics, Mathematics and Information Technology, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Valeria Rodionova
- Institute of Physics, Mathematics and Information Technology, Immanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Aleksey Nikitin
- National University of Science and Technology "MISIS", Moscow, Russia
| | | | - Igor Schetinin
- National University of Science and Technology "MISIS", Moscow, Russia
| | - Dmitry Zhukov
- National University of Science and Technology "MISIS", Moscow, Russia
| | - Maxim Abakumov
- National University of Science and Technology "MISIS", Moscow, Russia
| | - Alexander Majouga
- National University of Science and Technology "MISIS", Moscow, Russia
| | - Mariia Lunova
- Institute of Physics of the Czech Academy of Sciences, 18221, Prague, Czech Republic
- Institute for Clinical & Experimental Medicine (IKEM), Prague, Czech Republic
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), Prague, Czech Republic
| | - Barbora Smolková
- Institute of Physics of the Czech Academy of Sciences, 18221, Prague, Czech Republic
| | - Mariia Uzhytchak
- Institute of Physics of the Czech Academy of Sciences, 18221, Prague, Czech Republic
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, 18221, Prague, Czech Republic
| | - Oleg Lunov
- Institute of Physics of the Czech Academy of Sciences, 18221, Prague, Czech Republic.
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29
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Lavrentiev V, Motylenko M, Barchuk M, Schimpf C, Lavrentieva I, Pokorný J, Röder C, Vacik J, Dejneka A, Rafaja D. Structure assembly regularities in vapour-deposited gold-fullerene mixture films. Nanoscale Adv 2020; 2:1542-1550. [PMID: 36132301 PMCID: PMC9418758 DOI: 10.1039/d0na00140f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 02/21/2020] [Indexed: 06/15/2023]
Abstract
Self-assembly is an attractive phenomenon that, with proper handling, can enable the production of sophisticated hybrid nanostructures with sub-nm-scale precision. The importance of this phenomenon is particularly notable in the fabrication of metal-organic nanomaterials as promising substances for spintronic devices. The exploitation of self-assembly in nanofabrication requires a comprehension of atomic processes creating hybrid nanostructures. Here, we focus on the self-assembly processes in the vapour-deposited Au x C60 mixture films, revealing the exciting quantum plasmon effects. Through a systematic characterization of the Au x C60 films carried out using structure-sensitive techniques, we have established correlations between the film nanostructure and the Au concentration, x. The analysis of these correlations designates the Au intercalation into the C60 lattice and the Au clustering as the basic processes of the nanostructure self-assembly in the mixture films, the efficiency of which strongly depends on x. The evaluation of this dependence for the Au x C60 composite nanostructures formed in a certain composition interval allows us to control the size of the Au clusters and the intercluster spacing by adjusting the Au concentration only. This study represents the self-assembled Au x C60 mixtures as quantum materials with electronic functions tuneable by the Au concentration in the depositing mixture.
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Affiliation(s)
- V Lavrentiev
- NS Lab, Nuclear Physics Institute CAS Rez-130, Husinec 25068 Czech Republic
| | - M Motylenko
- Institute of Materials Science, TU Bergakademie Freiberg Gustav-Zeuner-Str. 5 D-09599 Freiberg Germany
| | - M Barchuk
- Institute of Materials Science, TU Bergakademie Freiberg Gustav-Zeuner-Str. 5 D-09599 Freiberg Germany
| | - C Schimpf
- Institute of Materials Science, TU Bergakademie Freiberg Gustav-Zeuner-Str. 5 D-09599 Freiberg Germany
| | - I Lavrentieva
- NS Lab, Nuclear Physics Institute CAS Rez-130, Husinec 25068 Czech Republic
| | - J Pokorný
- Institute of Physics CAS Na Slovance 2 Prague 18221 Czech Republic
| | - C Röder
- Institute of Theoretical Physics, TU Bergakademie Freiberg Leipziger Str. 23 D-09599 Freiberg Germany
| | - J Vacik
- NS Lab, Nuclear Physics Institute CAS Rez-130, Husinec 25068 Czech Republic
| | - A Dejneka
- Institute of Physics CAS Na Slovance 2 Prague 18221 Czech Republic
| | - D Rafaja
- Institute of Materials Science, TU Bergakademie Freiberg Gustav-Zeuner-Str. 5 D-09599 Freiberg Germany
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30
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Yang X, Li Z, Polyakova T, Dejneka A, Zablotskii V, Zhang X. Effect of static magnetic field on DNA synthesis: The interplay between DNA chirality and magnetic field left-right asymmetry. FASEB Bioadv 2020; 2:254-263. [PMID: 32259051 PMCID: PMC7133733 DOI: 10.1096/fba.2019-00045] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 05/26/2019] [Accepted: 02/03/2020] [Indexed: 12/13/2022] Open
Abstract
Interactions between magnetic fields (MFs) and living cells may stimulate a large variety of cellular responses to a MF, while the underlying intracellular mechanisms still remain a great puzzle. On a fundamental level, the MF - cell interaction is affected by the two broken symmetries: (a) left-right (LR) asymmetry of the MF and (b) chirality of DNA molecules carrying electric charges and subjected to the Lorentz force when moving in a MF. Here we report on the chirality-driven effect of static magnetic fields (SMFs) on DNA synthesis. This newly discovered effect reveals how the interplay between two fundamental features of symmetry in living and inanimate nature-DNA chirality and the inherent features of MFs to distinguish the left and right-manifests itself in different DNA synthesis rates in the upward and downward SMFs, consequently resulting in unequal cell proliferation for the two directions of the field. The interplay between DNA chirality and MF LR asymmetry will provide fundamental knowledge for many MF-induced biological phenotypes.
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Affiliation(s)
- Xingxing Yang
- High Magnetic Field LaboratoryKey Laboratory of High Magnetic Field and Ion Beam Physical BiologyHefei Institutes of Physical ScienceChinese Academy of SciencesHefeiChina
- Science Island Branch of Graduate SchoolUniversity of Science and Technology of ChinaHefeiChina
| | - Zhiyuan Li
- High Magnetic Field LaboratoryKey Laboratory of High Magnetic Field and Ion Beam Physical BiologyHefei Institutes of Physical ScienceChinese Academy of SciencesHefeiChina
| | - Tatyana Polyakova
- Institute of Physics of the Czech Academy of SciencesPragueCzech Republic
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of SciencesPragueCzech Republic
| | - Vitalii Zablotskii
- Institute of Physics of the Czech Academy of SciencesPragueCzech Republic
| | - Xin Zhang
- High Magnetic Field LaboratoryKey Laboratory of High Magnetic Field and Ion Beam Physical BiologyHefei Institutes of Physical ScienceChinese Academy of SciencesHefeiChina
- Science Island Branch of Graduate SchoolUniversity of Science and Technology of ChinaHefeiChina
- Institutes of Physical Science and Information TechnologyAnhui UniversityHefeiChina
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31
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Víšová I, Smolková B, Uzhytchak M, Vrabcová M, Zhigunova Y, Houska M, Surman F, los Santos Pereira A, Lunov O, Dejneka A, Vaisocherová‐Lísalová H. Modulation of Living Cell Behavior with Ultra‐Low Fouling Polymer Brush Interfaces. Macromol Biosci 2020. [DOI: 10.1002/mabi.202070005] [Citation(s) in RCA: 1] [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: 11/05/2022]
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32
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Víšová I, Smolková B, Uzhytchak M, Vrabcová M, Zhigunova Y, Houska M, Surman F, de Los Santos Pereira A, Lunov O, Dejneka A, Vaisocherová-Lísalová H. Modulation of Living Cell Behavior with Ultra-Low Fouling Polymer Brush Interfaces. Macromol Biosci 2020; 20:e1900351. [PMID: 32045093 DOI: 10.1002/mabi.201900351] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 09/27/2019] [Revised: 12/12/2019] [Indexed: 12/23/2022]
Abstract
Ultra-low fouling and functionalizable coatings represent emerging surface platforms for various analytical and biomedical applications such as those involving examination of cellular interactions in their native environments. Ultra-low fouling surface platforms as advanced interfaces enabling modulation of behavior of living cells via tuning surface physicochemical properties are presented and studied. The state-of-art ultra-low fouling surface-grafted polymer brushes of zwitterionic poly(carboxybetaine acrylamide), nonionic poly(N-(2-hydroxypropyl)methacrylamide), and random copolymers of carboxybetaine methacrylamide (CBMAA) and HPMAA [p(CBMAA-co-HPMAA)] with tunable molar contents of CBMAA and HPMAA are employed. Using a model Huh7 cell line, a systematic study of surface wettability, swelling, and charge effects on the cell growth, shape, and cytoskeleton distribution is performed. This study reveals that ultra-low fouling interfaces with a high content of zwitterionic moieties (>65 mol%) modulate cell behavior in a distinctly different way compared to coatings with a high content of nonionic HPMAA. These differences are attributed mostly to the surface hydration capabilities. The results demonstrate a high potential of carboxybetaine-rich ultra-low fouling surfaces with high hydration capabilities and minimum background signal interferences to create next-generation bioresponsive interfaces for advanced studies of living objects.
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Affiliation(s)
- Ivana Víšová
- Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21, Prague, Czech Republic
| | - Barbora Smolková
- Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21, Prague, Czech Republic
| | - Mariia Uzhytchak
- Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21, Prague, Czech Republic
| | - Markéta Vrabcová
- Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21, Prague, Czech Republic
| | - Yulia Zhigunova
- Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21, Prague, Czech Republic
| | - Milan Houska
- Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21, Prague, Czech Republic
| | - František Surman
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00, Prague, Czech Republic
| | - Andres de Los Santos Pereira
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 00, Prague, Czech Republic
| | - Oleg Lunov
- Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21, Prague, Czech Republic
| | - Alexandr Dejneka
- Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21, Prague, Czech Republic
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33
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Hashim H, Kozhaev M, Kapralov P, Panina L, Belotelov V, Víšová I, Chvostová D, Dejneka A, Shpetnyi I, Latyshev V, Vorobiov S, Komanický V. Controlling the Transverse Magneto-Optical Kerr Effect in Cr/NiFe Bilayer Thin Films by Changing the Thicknesses of the Cr Layer. Nanomaterials (Basel) 2020; 10:E256. [PMID: 32024156 PMCID: PMC7075206 DOI: 10.3390/nano10020256] [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] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/21/2020] [Accepted: 01/28/2020] [Indexed: 06/10/2023]
Abstract
Here, we demonstrate the impact of ferromagnetic layer coating on controlling the magneto-optical response. We found that the transverse magneto-optical Kerr effect (TMOKE) signal and TMOKE hysteresis loops of Ni80Fe20 thin layers coated with a Cr layer show a strong dependence on the thickness of the Cr layer and the incidence angle of the light. The transmission and reflection spectra were measured over a range of incidence angles and with different wavelengths so as to determine the layers' optical parameters and to explain the TMOKE behavior. The generalized magneto-optical and ellipsometry (GMOE) model based on modified Abeles characteristic matrices was used to examine the agreement between the experimental and theoretical results. A comprehensive theoretical and experimental analysis reveals the possibility to create a TMOKE suppression/enhancement coating at specific controllable incidence angles. This has potential for applications in optical microscopy and sensors.
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Affiliation(s)
- Hisham Hashim
- Department of Technology of Electronic Materials, National University of Science and Technology (MISIS), Moscow 119049, Russia;
- Department of Physics, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Mikhail Kozhaev
- Russian Quantum Center, Skolkovo, Moscow Region 143025, Russia; (M.K.); (P.K.); (V.B.)
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow 119991, Russia
| | - Pavel Kapralov
- Russian Quantum Center, Skolkovo, Moscow Region 143025, Russia; (M.K.); (P.K.); (V.B.)
| | - Larissa Panina
- Department of Technology of Electronic Materials, National University of Science and Technology (MISIS), Moscow 119049, Russia;
- Institute of Physics, Mathematics and IT, Immanuel Kant Baltic Federal University, Kaliningrad 236041, Russia
| | - Vladimir Belotelov
- Russian Quantum Center, Skolkovo, Moscow Region 143025, Russia; (M.K.); (P.K.); (V.B.)
| | - Ivana Víšová
- Institute of Physics, Czech Academy of Sciences, Prague 18221, Czech Republic; (I.V.); (D.C.); (A.D.)
| | - Dagmar Chvostová
- Institute of Physics, Czech Academy of Sciences, Prague 18221, Czech Republic; (I.V.); (D.C.); (A.D.)
| | - Alexandr Dejneka
- Institute of Physics, Czech Academy of Sciences, Prague 18221, Czech Republic; (I.V.); (D.C.); (A.D.)
| | - Ihor Shpetnyi
- Sumy State University, 2, Rimsky Korsakov Str., 40007 Sumy, Ukraine; (I.S.); (S.V.)
| | - Vitalii Latyshev
- Institute of Physics, P.J. Šafárik University, 041 80 Košice, Slovak (V.K.)
| | - Serhii Vorobiov
- Sumy State University, 2, Rimsky Korsakov Str., 40007 Sumy, Ukraine; (I.S.); (S.V.)
- Institute of Physics, P.J. Šafárik University, 041 80 Košice, Slovak (V.K.)
| | - Vladimír Komanický
- Institute of Physics, P.J. Šafárik University, 041 80 Košice, Slovak (V.K.)
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34
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Lunov O, Uzhytchak M, Smolková B, Lunova M, Jirsa M, Dempsey NM, Dias AL, Bonfim M, Hof M, Jurkiewicz P, Petrenko Y, Kubinová Š, Dejneka A. Remote Actuation of Apoptosis in Liver Cancer Cells via Magneto-Mechanical Modulation of Iron Oxide Nanoparticles. Cancers (Basel) 2019; 11:cancers11121873. [PMID: 31779223 PMCID: PMC6966689 DOI: 10.3390/cancers11121873] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [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: 11/08/2019] [Revised: 11/22/2019] [Accepted: 11/23/2019] [Indexed: 02/06/2023] Open
Abstract
Lysosome-activated apoptosis represents an alternative method of overcoming tumor resistance compared to traditional forms of treatment. Pulsed magnetic fields open a new avenue for controlled and targeted initiation of lysosomal permeabilization in cancer cells via mechanical actuation of magnetic nanomaterials. In this study we used a noninvasive tool; namely, a benchtop pulsed magnetic system, which enabled remote activation of apoptosis in liver cancer cells. The magnetic system we designed represents a platform that can be used in a wide range of biomedical applications. We show that liver cancer cells can be loaded with superparamagnetic iron oxide nanoparticles (SPIONs). SPIONs retained in lysosomal compartments can be effectively actuated with a high intensity (up to 8 T), short pulse width (~15 µs), pulsed magnetic field (PMF), resulting in lysosomal membrane permeabilization (LMP) in cancer cells. We revealed that SPION-loaded lysosomes undergo LMP by assessing an increase in the cytosolic activity of the lysosomal cathepsin B. The extent of cell death induced by LMP correlated with the accumulation of reactive oxygen species in cells. LMP was achieved for estimated forces of 700 pN and higher. Furthermore, we validated our approach on a three-dimensional cellular culture model to be able to mimic in vivo conditions. Overall, our results show that PMF treatment of SPION-loaded lysosomes can be utilized as a noninvasive tool to remotely induce apoptosis.
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Affiliation(s)
- Oleg Lunov
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (M.U.); (B.S.); (M.L.); (Š.K.); (A.D.)
- Correspondence: ; Tel.: +42-026-6052-131
| | - Mariia Uzhytchak
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (M.U.); (B.S.); (M.L.); (Š.K.); (A.D.)
| | - Barbora Smolková
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (M.U.); (B.S.); (M.L.); (Š.K.); (A.D.)
| | - Mariia Lunova
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (M.U.); (B.S.); (M.L.); (Š.K.); (A.D.)
- Institute for Clinical & Experimental Medicine (IKEM), 14021 Prague, Czech Republic;
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), 14021 Prague, Czech Republic;
| | - Nora M. Dempsey
- Institut Néel, Grenoble INP, CNRS, Université Grenoble Alpes, 38000 Grenoble, France; (N.M.D.); (A.L.D.)
| | - André L. Dias
- Institut Néel, Grenoble INP, CNRS, Université Grenoble Alpes, 38000 Grenoble, France; (N.M.D.); (A.L.D.)
| | - Marlio Bonfim
- Universidade Federal do Paraná, DELT, Curitiba 81531-980, Brazil;
| | - Martin Hof
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, 18223 Prague, Czech Republic; (M.H.); (P.J.)
| | - Piotr Jurkiewicz
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, 18223 Prague, Czech Republic; (M.H.); (P.J.)
| | - Yuri Petrenko
- Institute of Experimental Medicine of the Czech Academy of Sciences, 14220 Prague, Czech Republic;
| | - Šárka Kubinová
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (M.U.); (B.S.); (M.L.); (Š.K.); (A.D.)
- Institute of Experimental Medicine of the Czech Academy of Sciences, 14220 Prague, Czech Republic;
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic; (M.U.); (B.S.); (M.L.); (Š.K.); (A.D.)
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35
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Lunova M, Smolková B, Uzhytchak M, Janoušková KŽ, Jirsa M, Egorova D, Kulikov A, Kubinová Š, Dejneka A, Lunov O. Light-induced modulation of the mitochondrial respiratory chain activity: possibilities and limitations. Cell Mol Life Sci 2019; 77:2815-2838. [DOI: 10.1007/s00018-019-03321-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/11/2019] [Accepted: 09/23/2019] [Indexed: 12/17/2022]
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36
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Lavrentiev V, Chvostova D, Motylenko M, Vacik J, Rafaja D, Dejneka A. Quantum plasmon excitations in gold-fullerene mixture films. Nanotechnology 2019; 30:365001. [PMID: 31151131 DOI: 10.1088/1361-6528/ab2613] [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: 06/09/2023]
Abstract
Controllable access to the hybrid plasmonic nanostructures built of small metal nanoparticles and organic spacer offers a tempting set of electronic excitations, which proper handling promises valuable applications and bright fundamental prospect. Here, we report on remarkable plasmonic properties of the Au x C60 hybrid nanostructures formed through self-assembling the depositing mixture of metal and fullerene. Using optical absorption spectra, we demonstrate establishing of quantum plasmon (QP) excitations upon the controllable increase of spatial density and size of the Au clusters formed in the films. Detection of two plasmonic modes evidences the QP hybridization enabling by nm-scaled proximity of the neighboured Au clusters. Variation of the QP mode parameters with gradual decrease of the inter-cluster spacing ΔL to the sub-nanometre scale driven by the Au concentration in the film x allowed us to evidence the quantum tunnelling regime in the QP hybridization launching at ΔL ≈ 0.9 nm. The later result designates an important role of the C60 molecules, separating the Au clusters, in design of plasmonic and transport properties of the hybrid films. The obtained results represent the self-assembled Au x C60 nanocomposites as the promising plasmonic materials with potential for application in nanoplasmonics, nanoelectronics, and nanomedicine.
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Affiliation(s)
- Vasily Lavrentiev
- Nuclear Physics Institute CAS, Rez-130, Husinec 25068, Czech Republic
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37
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Abstract
Allying epitaxial strain and synthesis conditions allows for the introduction of specific point defects in perovskite oxide films. In ferroelectric films, such defects lead to essential polar and electronic properties, which can enable advanced applications. Here, to elucidate the nature of the defects, optical constants are investigated in the spectral range of 0.7-8.8 eV in epitaxial ferroelectric BaTiO3 films, which are synthesized under different conditions. It is demonstrated that oxygen-vacancy-related defects are responsible for a peculiar transition below the bandgap at ∼2.7-2.9 eV and significant blueshifts of ∼0.3-0.4 eV of the gap and the main interband transitions. These observations suggest that the defects are dipolar complexes comprising titanium cations and oxygen vacancies (Ti3+-VO).
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Affiliation(s)
- M Tyunina
- Microelectronics Research Unit, Faculty of Information Technology and Electrical Engineering, University of Oulu, P. O. Box 4500, FI-90014, Finland.
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38
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Tyunina M, Pacherova O, Peräntie J, Savinov M, Jelinek M, Jantunen H, Dejneka A. Perovskite ferroelectric tuned by thermal strain. Sci Rep 2019; 9:3677. [PMID: 30842509 PMCID: PMC6403324 DOI: 10.1038/s41598-019-40260-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [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: 10/25/2018] [Accepted: 02/12/2019] [Indexed: 12/05/2022] Open
Abstract
Modern environmental and sustainability issues as well as the growing demand for applications in the life sciences and medicine put special requirements to the chemical composition of many functional materials. To achieve desired performance within these requirements, innovative approaches are needed. In this work, we experimentally demonstrate that thermal strain can effectively tune the crystal structure and versatile properties of relatively thick films of environmentally friendly, biocompatible, and low-cost perovskite ferroelectric barium titanate. The strain arises during post-deposition cooling due to a mismatch between the thermal expansion coefficients of the films and the substrate materials. The strain-induced in-plane polarization enables excellent performance of bottom-to-top barium titanate capacitors akin to that of exemplary lead-containing relaxor ferroelectrics. Our work shows that controlling thermal strain can help tailor response functions in a straightforward manner.
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Affiliation(s)
- M Tyunina
- Microelectronics Research Unit, University of Oulu, P.O. Box 4500, FI-90014, Oulu, Finland. .,Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18221, Prague, Czech Republic.
| | - O Pacherova
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18221, Prague, Czech Republic
| | - J Peräntie
- Microelectronics Research Unit, University of Oulu, P.O. Box 4500, FI-90014, Oulu, Finland
| | - M Savinov
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18221, Prague, Czech Republic
| | - M Jelinek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18221, Prague, Czech Republic
| | - H Jantunen
- Microelectronics Research Unit, University of Oulu, P.O. Box 4500, FI-90014, Oulu, Finland
| | - A Dejneka
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 18221, Prague, Czech Republic
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Smolková B, Lunova M, Lynnyk A, Uzhytchak M, Churpita O, Jirsa M, Kubinová Š, Lunov O, Dejneka A. Non-Thermal Plasma, as a New Physicochemical Source, to Induce Redox Imbalance and Subsequent Cell Death in Liver Cancer Cell Lines. Cell Physiol Biochem 2019; 52:119-140. [PMID: 30790509 DOI: 10.33594/000000009] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [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: 09/18/2018] [Accepted: 01/10/2019] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND/AIMS Alteration of cancer cell redox status has been recognized as a promising therapeutic implication. In recent years, the emerged field of non-thermal plasma (NTP) has shown considerable promise in various biomedical applications, including cancer therapy. However, understanding the molecular mechanisms procuring cellular responses remains incomplete. Thus, the aim of this study was a rigorous biochemical analysis of interactions between NTP and liver cancer cells. METHODS The concept was validated using three different cell lines. We provide several distinct lines of evidence to support our findings; we use various methods (epifluorescent and confocal microscopy, clonogenic and cytotoxicity assays, Western blotting, pharmacological inhibition studies, etc.). RESULTS We assessed the influence of NTP on three human liver cancer cell lines (Huh7, Alexander and HepG2). NTP treatment resulted in higher anti-proliferative effect against Alexander and Huh7 relative to HepG2. Our data clearly showed that the NTP-mediated alternation of mitochondrial membrane potential and dynamics led to ROS-mediated apoptosis in Huh7 and Alexander cells. Interestingly, plasma treatment resulted in p53 down-regulation in Huh7 cells. High levels of Bcl-2 protein expression in HepG2 resulted in their resistance in response to oxidative stress- mediated by plasma. CONCLUSION We show thoroughly time- and dose-dependent kinetics of ROS accumulation in HCC cells. Furthermore, we show nuclear compartmentalization of the superoxide anion triggered by NTP. NTP induced apoptotic death in Huh7 liver cancer cells via simultaneous downregulation of mutated p53, pSTAT1 and STAT1. Contrary, hydrogen peroxide treatment results in autophagic cell death. We disclosed detailed mechanisms of NTP-mediated alteration of redox signalling in liver cancer cells.
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Affiliation(s)
- Barbora Smolková
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Mariia Lunova
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic.,Institute for Clinical & Experimental Medicine (IKEM), Prague, Czech Republic
| | - Anna Lynnyk
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Mariia Uzhytchak
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Olexander Churpita
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), Prague, Czech Republic
| | - Šárka Kubinová
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic.,Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czech Republic
| | - Oleg Lunov
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic.,Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic,
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
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40
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Lunova M, Smolková B, Lynnyk A, Uzhytchak M, Jirsa M, Kubinová Š, Dejneka A, Lunov O. Targeting the mTOR Signaling Pathway Utilizing Nanoparticles: A Critical Overview. Cancers (Basel) 2019; 11:E82. [PMID: 30642006 PMCID: PMC6356373 DOI: 10.3390/cancers11010082] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [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: 11/22/2018] [Revised: 12/21/2018] [Accepted: 01/05/2019] [Indexed: 12/21/2022] Open
Abstract
Proteins of the mammalian target of rapamycin (mTOR) signaling axis are overexpressed or mutated in cancers. However, clinical inhibition of mTOR signaling as a therapeutic strategy in oncology shows rather limited progress. Nanoparticle-based mTOR targeted therapy proposes an attractive therapeutic option for various types of cancers. Along with the progress in the biomedical applications of nanoparticles, we start to realize the challenges and opportunities that lie ahead. Here, we critically analyze the current literature on the modulation of mTOR activity by nanoparticles, demonstrate the complexity of cellular responses to functionalized nanoparticles, and underline challenges lying in the identification of the molecular mechanisms of mTOR signaling affected by nanoparticles. We propose the idea that subcytotoxic doses of nanoparticles could be relevant for the induction of subcellular structural changes with possible involvement of mTORC1 signaling. The evaluation of the mechanisms and therapeutic effects of nanoparticle-based mTOR modulation will provide fundamental knowledge which could help in developing safe and efficient nano-therapeutics.
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Affiliation(s)
- Mariia Lunova
- Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic.
- Institute for Clinical & Experimental Medicine (IKEM), Prague, 140 21, Czech Republic.
| | - Barbora Smolková
- Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic.
| | - Anna Lynnyk
- Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic.
| | - Mariia Uzhytchak
- Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic.
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), Prague, 140 21, Czech Republic.
| | - Šárka Kubinová
- Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic.
- Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, 14220, Czech Republic.
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic.
| | - Oleg Lunov
- Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic.
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41
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Smolková B, Uzhytchak M, Lynnyk A, Kubinová Š, Dejneka A, Lunov O. A Critical Review on Selected External Physical Cues and Modulation of Cell Behavior: Magnetic Nanoparticles, Non-thermal Plasma and Lasers. J Funct Biomater 2018; 10:jfb10010002. [PMID: 30586923 PMCID: PMC6463085 DOI: 10.3390/jfb10010002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 11/16/2018] [Revised: 12/13/2018] [Accepted: 12/21/2018] [Indexed: 12/18/2022] Open
Abstract
Physics-based biomedical approaches have proved their importance for the advancement of medical sciences and especially in medical diagnostics and treatments. Thus, the expectations regarding development of novel promising physics-based technologies and tools are very high. This review describes the latest research advances in biomedical applications of external physical cues. We overview three distinct topics: using high-gradient magnetic fields in nanoparticle-mediated cell responses; non-thermal plasma as a novel bactericidal agent; highlights in understanding of cellular mechanisms of laser irradiation. Furthermore, we summarize the progress, challenges and opportunities in those directions. We also discuss some of the fundamental physical principles involved in the application of each cue. Considerable technological success has been achieved in those fields. However, for the successful clinical translation we have to understand the limitations of technologies. Importantly, we identify the misconceptions pervasive in the discussed fields.
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Affiliation(s)
- Barbora Smolková
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
| | - Mariia Uzhytchak
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
| | - Anna Lynnyk
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
| | - Šárka Kubinová
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
- Institute of Experimental Medicine of the Czech Academy of Sciences, 14220 Prague, Czech Republic.
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
| | - Oleg Lunov
- Institute of Physics of the Czech Academy of Sciences, 18221 Prague, Czech Republic.
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42
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Zablotskii V, Polyakova T, Dejneka A. Cells in the Non-Uniform Magnetic World: How Cells Respond to High-Gradient Magnetic Fields. Bioessays 2018; 40:e1800017. [PMID: 29938810 DOI: 10.1002/bies.201800017] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [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: 01/25/2018] [Revised: 05/11/2018] [Indexed: 12/21/2022]
Abstract
Imagine cells that live in a high-gradient magnetic field (HGMF). Through what mechanisms do the cells sense a non-uniform magnetic field and how such a field changes the cell fate? We show that magnetic forces generated by HGMFs can be comparable to intracellular forces and therefore may be capable of altering the functionality of an individual cell and tissues in unprecedented ways. We identify the cellular effectors of such fields and propose novel routes in cell biology predicting new biological effects such as magnetic control of cell-to-cell communication and vesicle transport, magnetic control of intracellular ROS levels, magnetically induced differentiation of stem cells, magnetically assisted cell division, or prevention of cells from dividing. On the basis of experimental facts and theoretical modeling we reveal timescales of cellular responses to high-gradient magnetic fields and suggest an explicit dependence of the cell response time on the magnitude of the magnetic field gradient.
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Affiliation(s)
- Vitalii Zablotskii
- Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
| | - Tatyana Polyakova
- Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, Prague 18221, Czech Republic
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43
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Lavrentiev V, Chvostova D, Stupakov A, Lavrentieva I, Vacik J, Motylenko M, Barchuk M, Rafaja D, Dejneka A. Quantum plasmon and Rashba-like spin splitting in self-assembled Co x C 60 composites with enhanced Co content (x > 15). Nanotechnology 2018; 29:135701. [PMID: 29368694 DOI: 10.1088/1361-6528/aaaa7a] [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: 06/07/2023]
Abstract
Driving by interplay between plasmonic and magnetic effects in organic composite semiconductors is a challenging task with a huge potential for practical applications. Here, we present evidence of a quantum plasmon excited in the self-assembled Co x C60 nanocomposite films with x > 15 (interval of the Co cluster coalescence) and analyse it using the optical absorption (OA) spectra. In the case of Co x C60 film with x = 16 (LF sample), the quantum plasmon generated by the Co/CoO clusters is found as the 1.5 eV-centred OA peak. This finding is supported by the establishment of four specific C60-related OA lines detected at the photon energies E p > 2.5 eV. Increase of the Co content up to x = 29 (HF sample) leads to pronounced enhancement of OA intensity in the energy range of E p > 2.5 eV and to plasmonic peak downshift of 0.2 eV with respect to the peak position in the LF spectrum. Four pairs of the OA peaks evaluated in the HF spectrum at E p > 2.5 eV reflect splitting of the C60-related lines, suggesting great change in the microscopic conditions with increasing x. Analysis of the film nanostructure and the plasmon-induced conditions allows us to propose a Rashba-like spin splitting effect that suggests valuable sources for spin polarization.
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Affiliation(s)
- Vasily Lavrentiev
- Nuclear Physics Institute of the Czech Academy of Sciences, Rez-130, Husinec 25068, Czechia
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44
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Lynnyk A, Lunova M, Jirsa M, Egorova D, Kulikov A, Kubinová Š, Lunov O, Dejneka A. Manipulating the mitochondria activity in human hepatic cell line Huh7 by low-power laser irradiation. Biomed Opt Express 2018; 9. [PMID: 29541521 PMCID: PMC5846531 DOI: 10.1364/boe.9.001283] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Low-power laser irradiation of red light has been recognized as a promising tool across a vast variety of biomedical applications. However, deep understanding of the molecular mechanisms behind laser-induced cellular effects remains a significant challenge. Here, we investigated mechanisms involved in the death process in human hepatic cell line Huh7 at a laser irradiation. We decoupled distinct cell death pathways targeted by laser irradiations of different powers. Our data demonstrate that high dose laser irradiation exhibited the highest levels of total reactive oxygen species production, leading to cyclophilin D-related necrosis via the mitochondrial permeability transition. On the contrary, low dose laser irradiation resulted in the nuclear accumulation of superoxide and apoptosis execution. Our findings offer a novel insight into laser-induced cellular responses, and reveal distinct cell death pathways triggered by laser irradiation. The observed link between mitochondria depolarization and triggering ROS could be a fundamental phenomenon in laser-induced cellular responses.
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Affiliation(s)
- Anna Lynnyk
- Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
| | - Mariia Lunova
- Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
- Institute for Clinical & Experimental Medicine (IKEM), Prague, 14021, Czech Republic
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), Prague, 14021, Czech Republic
| | | | | | - Šárka Kubinová
- Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
- Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, 14220, Czech Republic
| | - Oleg Lunov
- Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, Prague, 18221, Czech Republic
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45
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Rubio Ayala M, Syrovets T, Hafner S, Zablotskii V, Dejneka A, Simmet T. Spatiotemporal magnetic fields enhance cytosolic Ca 2+ levels and induce actin polymerization via activation of voltage-gated sodium channels in skeletal muscle cells. Biomaterials 2018; 163:174-184. [PMID: 29471128 DOI: 10.1016/j.biomaterials.2018.02.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 11/23/2017] [Revised: 01/27/2018] [Accepted: 02/13/2018] [Indexed: 12/13/2022]
Abstract
Cellular function is modulated by the electric membrane potential controlling intracellular physiology and signal propagation from a motor neuron to a muscle fiber resulting in muscle contraction. Unlike electric fields, magnetic fields are not attenuated by biological materials and penetrate deep into the tissue. We used complex spatiotemporal magnetic fields (17-70 mT) to control intracellular signaling in skeletal muscle cells. By changing different parameters of the alternating magnetic field (amplitude, inversion time, rotation frequency), we induced transient depolarization of cellular membranes leading to i) Na+ influx through voltage-gated sodium channels (VGSC), ii) cytosolic calcium increase, and iii) VGSC- and ryanodine receptor-dependent increase of actin polymerization. The ion fluxes occurred only, when the field was applied and returned to baseline after the field was turned off. The 30-s-activation-cycle could be repeated without any loss of signal intensity. By contrast, static magnetic fields of the same strength exhibited no effect on myotube Ca2+ levels. Mathematical modeling suggested a role for the alternating magnetic field-induced eddy current, which mediates a local change in the membrane potential triggering the activation of VGSC. These findings might pave the way for the use of complex magnetic fields to improve function of skeletal muscles in myopathies.
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Affiliation(s)
- Mónica Rubio Ayala
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, 89081, Germany
| | - Tatiana Syrovets
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, 89081, Germany
| | - Susanne Hafner
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, 89081, Germany
| | - Vitalii Zablotskii
- Institute of Physics Academy of Sciences of the Czech Republic, Prague 8, Czech Republic
| | - Alexandr Dejneka
- Institute of Physics Academy of Sciences of the Czech Republic, Prague 8, Czech Republic
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Ulm, 89081, Germany.
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46
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Smolková B, Lunova M, Lynnyk A, Churpita O, Kubinová Š, Lunov O, Dejneka A. Differential Cell Death In Hepatocellular Cell Lines Induced By Non-Thermal Plasma. Clinical Plasma Medicine 2018. [DOI: 10.1016/j.cpme.2017.12.016] [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: 10/17/2022]
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47
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Lunova M, Zablotskii V, Dempsey NM, Devillers T, Jirsa M, Syková E, Kubinová Š, Lunov O, Dejneka A. Modulation of collective cell behaviour by geometrical constraints. Integr Biol (Camb) 2017; 8:1099-1110. [PMID: 27738682 DOI: 10.1039/c6ib00125d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Intracellular and extracellular mechanical forces play a crucial role during tissue growth, modulating nuclear shape and function and resulting in complex collective cell behaviour. However, the mechanistic understanding of how the orientation, shape, symmetry and homogeneity of cells are affected by environmental geometry is still lacking. Here we investigate cooperative cell behaviour and patterns under geometric constraints created by topographically patterned substrates. We show how cells cooperatively adopt their geometry, shape, positioning of the nucleus and subsequent proliferation activity. Our findings indicate that geometric constraints induce significant squeezing of cells and nuclei, cytoskeleton reorganization, drastic condensation of chromatin resulting in a change in the cell proliferation rate and the anisotropic growth of cultures. Altogether, this work not only demonstrates complex non-trivial collective cellular responses to geometrical constraints but also provides a tentative explanation of the observed cell culture patterns grown on different topographically patterned substrates. These findings provide important fundamental knowledge, which could serve as a basis for better controlled tissue growth and cell-engineering applications.
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Affiliation(s)
- Mariia Lunova
- Institute for Clinical & Experimental Medicine (IKEM), Prague, Czech Republic
| | - Vitalii Zablotskii
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic.
| | - Nora M Dempsey
- Univ. Grenoble Alpes, Inst NEEL, F-38042 Grenoble, France and CNRS, Inst NEEL, F-38042 Grenoble, France
| | - Thibaut Devillers
- Univ. Grenoble Alpes, Inst NEEL, F-38042 Grenoble, France and CNRS, Inst NEEL, F-38042 Grenoble, France
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), Prague, Czech Republic
| | - Eva Syková
- Institute of Experimental Medicine AS CR, Prague, Czech Republic
| | - Šárka Kubinová
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic. and Institute of Experimental Medicine AS CR, Prague, Czech Republic
| | - Oleg Lunov
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic.
| | - Alexandr Dejneka
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic.
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48
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Lunova M, Prokhorov A, Jirsa M, Hof M, Olżyńska A, Jurkiewicz P, Kubinová Š, Lunov O, Dejneka A. Nanoparticle core stability and surface functionalization drive the mTOR signaling pathway in hepatocellular cell lines. Sci Rep 2017; 7:16049. [PMID: 29167516 PMCID: PMC5700114 DOI: 10.1038/s41598-017-16447-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 11/08/2017] [Indexed: 12/20/2022] Open
Abstract
Specifically designed and functionalized nanoparticles hold great promise for biomedical applications. Yet, the applicability of nanoparticles is critically predetermined by their surface functionalization and biodegradability. Here we demonstrate that amino-functionalized polystyrene nanoparticles (PS-NH2), but not amino- or hydroxyl-functionalized silica particles, trigger cell death in hepatocellular carcinoma Huh7 cells. Importantly, biodegradability of nanoparticles plays a crucial role in regulation of essential cellular processes. Thus, biodegradable silica nanoparticles having the same shape, size and surface functionalization showed opposite cellular effects in comparison with similar polystyrene nanoparticles. At the molecular level, PS-NH2 obstruct and amino-functionalized silica nanoparticles (Si-NH2) activate the mTOR signalling in Huh7 and HepG2 cells. PS-NH2 induced time-dependent lysosomal destabilization associated with damage of the mitochondrial membrane. Solely in PS-NH2-treated cells, permeabilization of lysosomes preceded cell death. Contrary, Si-NH2 nanoparticles enhanced proliferation of HuH7 and HepG2 cells. Our findings demonstrate complex cellular responses to functionalized nanoparticles and suggest that nanoparticles can be used to control activation of mTOR signaling with subsequent influence on proliferation and viability of HuH7 cells. The data provide fundamental knowledge which could help in developing safe and efficient nano-therapeutics.
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Affiliation(s)
- Mariia Lunova
- Institute for Clinical & Experimental Medicine (IKEM), Prague, Czech Republic
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Andrey Prokhorov
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), Prague, Czech Republic
| | - Martin Hof
- J. Heyrovský Institute of Physical Chemistry AS CR, v.v.i., Dolejškova 2155/3, 182 23, Prague 8, Czech Republic
| | - Agnieszka Olżyńska
- J. Heyrovský Institute of Physical Chemistry AS CR, v.v.i., Dolejškova 2155/3, 182 23, Prague 8, Czech Republic
| | - Piotr Jurkiewicz
- J. Heyrovský Institute of Physical Chemistry AS CR, v.v.i., Dolejškova 2155/3, 182 23, Prague 8, Czech Republic
| | - Šárka Kubinová
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
- Institute of Experimental Medicine, the Czech Academy of Sciences, Prague, Czech Republic
| | - Oleg Lunov
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic.
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
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49
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Lunov O, Zablotskii V, Churpita O, Lunova M, Jirsa M, Dejneka A, Kubinová Š. Chemically different non-thermal plasmas target distinct cell death pathways. Sci Rep 2017; 7:600. [PMID: 28377599 PMCID: PMC5428849 DOI: 10.1038/s41598-017-00689-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [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: 11/10/2016] [Accepted: 03/08/2017] [Indexed: 02/07/2023] Open
Abstract
A rigorous biochemical analysis of interactions between non-thermal plasmas (NTPs) and living cells has become an important research topic, due to recent developments in biomedical applications of non-thermal plasmas. Here, we decouple distinct cell death pathways targeted by chemically different NTPs. We show that helium NTP cells treatment, results in necrosome formation and necroptosis execution, whereas air NTP leads to mTOR activation and autophagy inhibition, that induces mTOR-related necrosis. On the contrary, ozone (abundant component of air NTP) treatment alone, exhibited the highest levels of reactive oxygen species production leading to CypD-related necrosis via the mitochondrial permeability transition. Our findings offer a novel insight into plasma-induced cellular responses, and reveal distinct cell death pathways triggered by NTPs.
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Affiliation(s)
- Oleg Lunov
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic.
| | - Vitalii Zablotskii
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
| | - Olexander Churpita
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
| | - Mariia Lunova
- Institute for Clinical & Experimental Medicine (IKEM), Prague, 14021, Czech Republic
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), Prague, 14021, Czech Republic
| | - Alexandr Dejneka
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic
| | - Šárka Kubinová
- Institute of Physics of the Academy of Sciences of the Czech Republic, Prague, 18221, Czech Republic.,Institute of Experimental Medicine AS CR, Prague, 14220, Czech Republic
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50
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Kubinova S, Zaviskova K, Uherkova L, Zablotskii V, Churpita O, Lunov O, Dejneka A. Non-thermal air plasma promotes the healing of acute skin wounds in rats. Sci Rep 2017; 7:45183. [PMID: 28338059 PMCID: PMC5364525 DOI: 10.1038/srep45183] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [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: 01/30/2017] [Accepted: 02/16/2017] [Indexed: 02/08/2023] Open
Abstract
Non-thermal plasma (NTP) has nonspecific antibacterial effects, and can be applied as an effective tool for the treatment of chronic wounds and other skin pathologies. In this study we analysed the effect of NTP on the healing of the full-thickness acute skin wound model in rats. We utilised a single jet NTP system generating atmospheric pressure air plasma, with ion volume density 5 · 1017 m-3 and gas temperature 30-35 °C. The skin wounds were exposed to three daily plasma treatments for 1 or 2 minutes and were evaluated 3, 7 and 14 days after the wounding by histological and gene expression analysis. NTP treatment significantly enhanced epithelization and wound contraction on day 7 when compared to the untreated wounds. Macrophage infiltration into the wound area was not affected by the NTP treatment. Gene expression analysis did not indicate an increased inflammatory reaction or a disruption of the wound healing process; transient enhancement of inflammatory marker upregulation was found after NTP treatment on day 7. In summary, NTP treatment had improved the healing efficacy of acute skin wounds without noticeable side effects and concomitant activation of pro-inflammatory signalling. The obtained results highlight the favourability of plasma applications for wound therapy in clinics.
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Affiliation(s)
- S Kubinova
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - K Zaviskova
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,2nd Medical Faculty, Charles University, Prague, Czech Republic
| | - L Uherkova
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - V Zablotskii
- Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - O Churpita
- Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - O Lunov
- Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - A Dejneka
- Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
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