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Brezani V, Blondeau N, Kotouček J, Klásková E, Šmejkal K, Hošek J, Mašková E, Kulich P, Prachyawarakorn V, Heurteaux C, Mašek J. Enhancing Solubility and Bioefficacy of Stilbenes by Liposomal Encapsulation-The Case of Macasiamenene F. ACS Omega 2024; 9:9027-9039. [PMID: 38434860 PMCID: PMC10905713 DOI: 10.1021/acsomega.3c07380] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 01/22/2024] [Accepted: 01/26/2024] [Indexed: 03/05/2024]
Abstract
Stilbenes in food and medicinal plants have been described as potent antiphlogistic and antioxidant compounds, and therefore, they present an interesting potential for the development of dietary supplements. Among them, macasiamenene F (MF) has recently been shown to be an effective anti-inflammatory and cytoprotective agent that dampens peripheral and CNS inflammation in vitro. Nevertheless, this promising molecule, like other stilbenes and a large percentage of drugs under development, faces poor water solubility, which results in trickier in vivo administration and low bioavailability. With the aim of improving MF solubility and developing a form optimized for in vivo administration, eight types of conventional liposomal nanocarriers and one type of PEGylated liposomes were formulated and characterized. In order to select the appropriate form of MF encapsulation, the safety of MF liposomal formulations was evaluated on THP-1 and THP-1-XBlue-MD2-CD14 monocytes, BV-2 microglia, and primary cortical neurons in culture. Furthermore, the cellular uptake of liposomes and the effect of encapsulation on MF anti-inflammatory effectiveness were evaluated on THP-1-XBlue-MD2-CD14 monocytes and BV-2 microglia. MF (5 mol %) encapsulated in PEGylated liposomes with an average size of 160 nm and polydispersity index of 0.122 was stable, safe, and the most promising form of MF encapsulation keeping its cytoprotective and anti-inflammatory properties.
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Affiliation(s)
- Veronika Brezani
- Department
of Molecular Pharmacy, Faculty of Pharmacy, Masaryk University, Palackého tř. 1946/1, CZ-612 00 Brno, Czech Republic
- Department
of Pharmacology and Toxicology, Veterinary
Research Institute, Hudcova 296/70, CZ-621 00 Brno, Czech Republic
- IPMC,
UMR 7275, Université Côte
d’Azur, CNRS, 660 Route des Lucioles, Sophia Antipolis, F-06560 Valbonne, France
| | - Nicolas Blondeau
- IPMC,
UMR 7275, Université Côte
d’Azur, CNRS, 660 Route des Lucioles, Sophia Antipolis, F-06560 Valbonne, France
| | - Jan Kotouček
- Department
of Pharmacology and Toxicology, Veterinary
Research Institute, Hudcova 296/70, CZ-621 00 Brno, Czech Republic
| | - Eva Klásková
- Department
of Pharmacology and Toxicology, Veterinary
Research Institute, Hudcova 296/70, CZ-621 00 Brno, Czech Republic
- Department
of Pharmacology, Faculty of Medicine, Masaryk
University, Kamenice
753/5, CZ-625 00 Brno, Czech Republic
| | - Karel Šmejkal
- Department
of Natural Drugs, Faculty of Pharmacy, Masaryk
University, Palackého
tř. 1946/1, CZ-612 00 Brno, Czech Republic
| | - Jan Hošek
- Department
of Molecular Pharmacy, Faculty of Pharmacy, Masaryk University, Palackého tř. 1946/1, CZ-612 00 Brno, Czech Republic
- Department
of Pharmacology and Toxicology, Veterinary
Research Institute, Hudcova 296/70, CZ-621 00 Brno, Czech Republic
| | - Eliška Mašková
- Department
of Pharmacology and Toxicology, Veterinary
Research Institute, Hudcova 296/70, CZ-621 00 Brno, Czech Republic
| | - Pavel Kulich
- Department
of Pharmacology and Toxicology, Veterinary
Research Institute, Hudcova 296/70, CZ-621 00 Brno, Czech Republic
| | | | - Catherine Heurteaux
- IPMC,
UMR 7275, Université Côte
d’Azur, CNRS, 660 Route des Lucioles, Sophia Antipolis, F-06560 Valbonne, France
| | - Josef Mašek
- Department
of Pharmacology and Toxicology, Veterinary
Research Institute, Hudcova 296/70, CZ-621 00 Brno, Czech Republic
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2
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Vrablikova A, Brezani V, Psikal I, Fraiberk M, Sebela M, Fojtikova M, Kulich P, Hezova R, Masek J. Development of modern immunization agent against bovine papillomavirus type 1 infection based on BPV1 L1 recombinant protein. Front Vet Sci 2023; 10:1116661. [PMID: 37056230 PMCID: PMC10086343 DOI: 10.3389/fvets.2023.1116661] [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: 12/05/2022] [Accepted: 02/27/2023] [Indexed: 03/30/2023] Open
Abstract
Bovine papillomavirus type 1 L1 protein was produced in a baculovirus expression system and purified as virus-like particles (VLPs) by affinity chromatography using lectins. The morphological integrity of VLPs was confirmed by electron microscopy. Differences between the two detected variants were deciphered by mass spectrometry of peptides (MALDI-TOF). Mice were immunized with purified VLPs in doses of 10, 25, or 50 μg in combination with 1% saponin and 15% alhydrogel per dose as adjuvants. Analysis of the humoral immune response revealed increased levels of specific antibodies detected 3 weeks after the first immunization in all groups of animals. This was further significantly increased by the booster applied 3 weeks after the first dose, with the best immune response in a group of mice immunized by the largest dose of antigen. BPV1 L1 VLPs purified by affinity chromatography using lectins could be used for prophylactic immunization in veterinary medicine.
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Affiliation(s)
- Alena Vrablikova
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Brno, Czechia
- *Correspondence: Alena Vrablikova
| | - Veronika Brezani
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Brno, Czechia
| | - Ivan Psikal
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Brno, Czechia
- Dyntec spol s. r.o., Terezin, Czechia
| | - Martin Fraiberk
- Dyntec spol s. r.o., Terezin, Czechia
- Faculty of Science, Charles University, Prague, Czechia
| | - Marek Sebela
- Department of Biochemistry, Faculty of Science, Palacký University, Olomouc, Czechia
| | - Martina Fojtikova
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Brno, Czechia
| | - Pavel Kulich
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Brno, Czechia
| | - Renata Hezova
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Brno, Czechia
| | - Josef Masek
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Brno, Czechia
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Elbl J, Veselý M, Blaháčková D, Ondruš J, Kulich P, Mašková E, Mašek J, Gajdziok J. Development of 3D Printed Multi-Layered Orodispersible Films with Porous Structure Applicable as a Substrate for Inkjet Printing. Pharmaceutics 2023; 15:pharmaceutics15020714. [PMID: 36840036 PMCID: PMC9961792 DOI: 10.3390/pharmaceutics15020714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 01/31/2023] [Accepted: 02/17/2023] [Indexed: 02/25/2023] Open
Abstract
The direct tailoring of the size, composition, or number of layers belongs to the advantages of 3D printing employment in producing orodispersible films (ODFs) compared to the frequently utilized solvent casting method. This study aimed to produce porous ODFs as a substrate for medicated ink deposited by a 2D printer. The innovative semi-solid extrusion 3D printing method was employed to produce multilayered ODFs, where the bottom layer assures the mechanical properties. In contrast, the top layer provides a porous structure for ink entrapment. Hydroxypropyl methylcellulose and polyvinyl alcohol were utilized as film-forming polymers, glycerol as a plasticizer, and sodium starch glycolate as a disintegrant in the bottom matrix. Several porogen agents (Aeroperl® 300, Fujisil®, Syloid® 244 FP, Syloid® XDP 3050, Neusilin® S2, Neusilin® US2, and Neusilin® UFL2) acted as porosity enhancers in the two types of top layer. ODFs with satisfactory disintegration time were prepared. The correlation between the porogen content and the mechanical properties was proved. A porous ODF structure was detected in most samples and linked to the porogen content. SSE 3D printing represents a promising preparation method for the production of porous ODFs as substrates for subsequent drug deposition by 2D printing, avoiding the difficulties arising in casting or printing medicated ODFs directly.
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Affiliation(s)
- Jan Elbl
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Masaryk University Brno, Palackého tř. 1946/1, 612 42 Brno, Czech Republic
| | - Martin Veselý
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Masaryk University Brno, Palackého tř. 1946/1, 612 42 Brno, Czech Republic
| | - Dagmar Blaháčková
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Masaryk University Brno, Palackého tř. 1946/1, 612 42 Brno, Czech Republic
| | - Jaroslav Ondruš
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 70, 621 00 Brno, Czech Republic
| | - Pavel Kulich
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 70, 621 00 Brno, Czech Republic
| | - Eliška Mašková
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 70, 621 00 Brno, Czech Republic
| | - Josef Mašek
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 70, 621 00 Brno, Czech Republic
| | - Jan Gajdziok
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Masaryk University Brno, Palackého tř. 1946/1, 612 42 Brno, Czech Republic
- Correspondence:
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Štefančík M, Válková L, Veverková J, Balvan J, Vičar T, Babula P, Mašek J, Kulich P, Pávková Goldbergová M. Correction to: Ni and TiO 2 nanoparticles cause adhesion and cytoskeletal changes in human osteoblasts. Environ Sci Pollut Res Int 2022; 29:47832. [PMID: 35511331 DOI: 10.1007/s11356-022-20584-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Michal Štefančík
- Institute of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
| | - Lucie Válková
- Institute of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
| | - Jana Veverková
- Institute of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
| | - Jan Balvan
- Institute of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
| | - Tomáš Vičar
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
| | - Petr Babula
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
| | - Josef Mašek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Pavel Kulich
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Monika Pávková Goldbergová
- Institute of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic.
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5
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Hodkovicova N, Hollerova A, Caloudova H, Blahova J, Franc A, Garajova M, Lenz J, Tichy F, Faldyna M, Kulich P, Mares J, Machat R, Enevova V, Svobodova Z. Do foodborne polyethylene microparticles affect the health of rainbow trout (Oncorhynchus mykiss)? Sci Total Environ 2021; 793:148490. [PMID: 34174619 DOI: 10.1016/j.scitotenv.2021.148490] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/12/2021] [Accepted: 06/12/2021] [Indexed: 05/20/2023]
Abstract
Due to the fact that plastic pollution is a global environmental problem of modern age, studies on the impact of these synthetic materials on aquatic, and especially fish organisms, are an important part of the ecosystem and human nutrition. In our study, the toxicity of pristine polyethylene (PE) microparticles (approx. 50 μm) on rainbow trout (Oncorhynchus mykiss) was tested in three different dietary concentrations - 0.5%, 2% and 5%. After six weeks of exposure, various health indices were evaluated. Electron microscopy of the intestine revealed the disintegration of PE particles to <5 μm in size, and thus we concluded that microplastics are able to reach tissues. The haematological profile revealed changes in total red blood cells count and haematocrit (5% PE) which could be associated with spleen congestion observed histologically. The marker of lipid peroxidation was increased in gills suggesting the disruption of balance in antioxidant enzymes capacity and histopathological imaging revealed inflammation in higher PE concentrations. In addition, ammonia was decreased and calcium elevated in biochemical profile, confirming the gill damage. Electron microscopy of the gills showed lesions of lamellae and visible rings around the mucinous cell opening indicating their higher activity. Another injured was the liver tissue, as confirmed by hepatodystrophies and increased expression of pro-inflammatory genes in 2% PE. Impaired innate immunity was confirmed by an increased presence of mucinous cells and a decrease in leukocytes. Kidney damage manifested itself by higher expression of pro-inflammatory cytokines and histopathology. The damage in gills, liver and kidney together correlated with the increased antioxidant capacity of plasma. In conclusion, PE microparticles are able to affect health indices of O. mykiss. The potential problem for aquatic ecosystems and even human consumption should be considered.
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Affiliation(s)
- N Hodkovicova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic.
| | - A Hollerova
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic; Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
| | - H Caloudova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
| | - J Blahova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
| | - A Franc
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Masaryk University, Brno, Czech Republic
| | - M Garajova
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Masaryk University, Brno, Czech Republic
| | - J Lenz
- Department of Pathology, Znojmo Hospital, Czech Republic; Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
| | - F Tichy
- Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic
| | - M Faldyna
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - P Kulich
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Brno, Czech Republic
| | - J Mares
- Department of Zoology, Fisheries, Hydrobiology and Apiculture, Faculty of AgriSciences, Mendel University in Brno, Czech Republic
| | - R Machat
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czech Republic
| | - V Enevova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
| | - Z Svobodova
- Department of Animal Protection and Welfare & Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
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Slováčková J, Slavík J, Kulich P, Večeřa J, Kováč O, Paculová H, Straková N, Fedr R, Silva JP, Carvalho F, Machala M, Procházková J. Polychlorinated environmental toxicants affect sphingolipid metabolism during neurogenesis in vitro. Toxicology 2021; 463:152986. [PMID: 34627992 DOI: 10.1016/j.tox.2021.152986] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/17/2021] [Accepted: 10/05/2021] [Indexed: 10/20/2022]
Abstract
Sphingolipids (SLs) are important signaling molecules and functional components of cellular membranes. Although SLs are known as crucial regulators of neural cell physiology and differentiation, modulations of SLs by environmental neurotoxicants in neural cells and their neuronal progeny have not yet been explored. In this study, we used in vitro models of differentiated neuron-like cells, which were repeatedly exposed during differentiation to model environmental toxicants, and we analyzed changes in sphingolipidome, cellular morphology and gene expression related to SL metabolism or neuronal differentiation. We compared these data with the results obtained in undifferentiated neural cells with progenitor-like features. As model polychlorinated organic pollutants, we used 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), 3,3'-dichlorobiphenyl (PCB11) and 2,2',4,4',5,5'-hexachlorobiphenyl (PCB153). PCB153 revealed itself as the most prominent deregulator of SL metabolism and as potent toxicant during early phases of in vitro neurogenesis. TCDD exerted only minor changes in the levels of analysed lipid species, however, it significantly changed the rate of pro-neuronal differentiation and deregulated expression of neuronal markers during neurogenesis. PCB11 acted as a potent disruptor of in vitro neurogenesis, which induced significant alterations in SL metabolism and cellular morphology in both differentiated neuron-like models (differentiated NE4C and NG108-15 cells). We identified ceramide-1-phosphate, lactosylceramides and several glycosphingolipids to be the most sensitive SL species to exposure to polychlorinated pollutants. Additionally, we identified deregulation of several genes related to SL metabolism, which may be explored in future as potential markers of developmental neurotoxicity.
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Affiliation(s)
- Jana Slováčková
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100, Brno, Czech Republic
| | - Josef Slavík
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100, Brno, Czech Republic
| | - Pavel Kulich
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100, Brno, Czech Republic
| | - Josef Večeřa
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100, Brno, Czech Republic
| | - Ondrej Kováč
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100, Brno, Czech Republic
| | - Hana Paculová
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100, Brno, Czech Republic
| | - Nicol Straková
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100, Brno, Czech Republic
| | - Radek Fedr
- Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 61265, Brno, Czech Republic
| | - João Pedro Silva
- Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Portugal
| | - Félix Carvalho
- Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Portugal
| | - Miroslav Machala
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100, Brno, Czech Republic.
| | - Jiřina Procházková
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 62100, Brno, Czech Republic; Department of Cytokinetics, Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 61265, Brno, Czech Republic.
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Strakova N, Korena K, Gelbicova T, Kulich P, Karpiskova R. A Rapid Culture Method for the Detection of Campylobacter from Water Environments. Int J Environ Res Public Health 2021; 18:ijerph18116098. [PMID: 34198825 PMCID: PMC8200967 DOI: 10.3390/ijerph18116098] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 05/27/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022]
Abstract
The natural environment and water are among the sources of Campylobacter jejuni and Campylobacter coli. A limited number of protocols exist for the isolation of campylobacters in poorly filterable water. Therefore, the goal of our work was to find a more efficient method of Campylobacter isolation and detection from wastewater and surface water than the ISO standard. In the novel rapid culture method presented here, samples are centrifuged at high speed, and the resuspended pellet is inoculated on a filter, which is placed on Campylobacter selective mCCDA agar. The motile bacteria pass through the filter pores, and mCCDA agar suppresses the growth of background microbiota on behalf of campylobacters. This culture-based method is more efficient for the detection and isolation of Campylobacter jejuni and Campylobacter coli from poorly filterable water than the ISO 17995 standard. It also is less time-consuming, taking only 72 h and comprising three steps, while the ISO standard method requires five or six steps and 144-192 h. This novel culture method, based on high-speed centrifugation, bacterial motility, and selective cultivation conditions, can be used for the detection and isolation of various bacteria from water samples.
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Matiašková K, Kavanová L, Kulich P, Gebauer J, Nedbalcová K, Kudláčková H, Tesařík R, Faldyna M. The Role of Antibodies Against the Crude Capsular Extract in the Immune Response of Porcine Alveolar Macrophages to In Vitro Infection of Various Serovars of Glaesserella ( Haemophilus) parasuis. Front Immunol 2021; 12:635097. [PMID: 33968026 PMCID: PMC8101634 DOI: 10.3389/fimmu.2021.635097] [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: 11/29/2020] [Accepted: 04/06/2021] [Indexed: 11/13/2022] Open
Abstract
In Glässer’s disease outbreaks, Glaesserella (Haemophilus) parasuis has to overcome the non-specific immune system in the lower respiratory tract, the alveolar macrophages. Here we showed that porcine alveolar macrophages (PAMs) were able to recognize and phagocyte G. parasuis with strain-to-strain variability despite the presence of the capsule in virulent (serovar 1, 5, 12) as well in avirulent strains (serovar 6 and 9). The capsule, outer membrane proteins, virulence-associated autotransporters, cytolethal distending toxins and many other proteins have been identified as virulence factors of this bacterium. Therefore, we immunized pigs with the crude capsular extract (cCE) from the virulent G. parasuis CAPM 6475 strain (serovar 5) and evaluated the role of the anti-cCE/post-vaccinal IgG in the immune response of PAMs to in vitro infection with various G. parasuis strains. We demonstrated the specific binding of the antibodies to the cCE by Western-blotting assay and immunoprecipitation as well as the specific binding to the strain CAPM 6475 in transmission electron microscopy. In the cCE, we identified several virulence-associated proteins that were immunoreactive with IgG isolated from sera of immunized pigs. Opsonization of G. parasuis strains by post-vaccinal IgG led to enhanced phagocytosis of G. parasuis by PAMs at the first two hours of infection. Moreover, opsonization increased the oxidative burst and expression/production of both pro- and anti-inflammatory cytokines. The neutralizing effects of these antibodies on the antioxidant mechanisms of G. parasuis may lead to attenuation of its virulence and pathogenicity in vivo. Together with opsonization of bacteria by these antibodies, the host may eliminate G. parasuis in the infection site more efficiently. Based on these results, the crude capsular extract is a vaccine candidate with immunogenic properties.
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Affiliation(s)
- Katarína Matiašková
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czechia
| | - Lenka Kavanová
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czechia
| | - Pavel Kulich
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Brno, Czechia
| | - Jan Gebauer
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czechia
| | - Kateřina Nedbalcová
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czechia
| | - Hana Kudláčková
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czechia
| | - Radek Tesařík
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czechia
| | - Martin Faldyna
- Department of Infectious Diseases and Preventive Medicine, Veterinary Research Institute, Brno, Czechia.,Department of Infectious Diseases and Microbiology, University of Veterinary Sciences, Brno, Czechia
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Sørensen P, Turánek-Knotigová P, Mašek J, Kotouček J, Hubatka F, Mašková E, Kulich P, Lubasová D, Raška M, Leenhouts K, Turánek J. Short-course sublingual immunotherapy by mucoadhesive patch and tolerogenic particle enhanced allergen presentation. Clin Exp Allergy 2021; 51:853-857. [PMID: 33682209 DOI: 10.1111/cea.13862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/11/2021] [Accepted: 02/19/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Poul Sørensen
- Allero Therapeutics BV, Rotterdam, Netherlands.,Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | | | - Josef Mašek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | - Jan Kotouček
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | - Frantisek Hubatka
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | - Eliska Mašková
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | - Pavel Kulich
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | - Daniela Lubasová
- The Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Liberec, Czech Republic
| | - Milan Raška
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic.,Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
| | | | - Jaroslav Turánek
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic.,University Hospital Hradec Kralove. Institute Clinical Immunology and Allergology, Charles University Prague, Hradec Kralove, Czech Republic
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10
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Štefančík M, Válková L, Veverková J, Balvan J, Vičar T, Babula P, Mašek J, Kulich P, Pávková Goldbergová M. Ni and TiO 2 nanoparticles cause adhesion and cytoskeletal changes in human osteoblasts. Environ Sci Pollut Res Int 2021; 28:6018-6029. [PMID: 32981019 DOI: 10.1007/s11356-020-10908-8] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/16/2020] [Indexed: 06/11/2023]
Abstract
Titanium-based alloys have established a crucial role in implantology. As material deteriorates overtime, nanoparticles of TiO2 and Ni are released. This study is focused on the impact of TiO2 and Ni nanoparticles with size of 100 nm on cytoskeletal and adhesive changes in human physiological and osteoarthritic osteoblasts. The impact of nanoparticles with concentration of 1.5 ng/mL on actin and tubulin expression and gene expression of FAK and ICAM-1 was studied. The cell size and actin expression of physiological osteoblasts decreased in presence of Ni nanoparticles, while TiO2 nanoparticles caused increase in cell size and actin expression. Both cell lines expressed more FAK as a response to TiO2 nanoparticles. ICAM-1 gene was overexpressed in both cell lines as a reaction to both types of nanoparticles. The presented study shows a crucial role of Ni and TiO2 nanoparticles in human osteoblast cytoskeletal and adhesive changes, especially connected with the osteoarthritic cells. Graphical abstract.
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Affiliation(s)
- Michal Štefančík
- Institute of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
| | - Lucie Válková
- Institute of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
| | - Jana Veverková
- Institute of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
| | - Jan Balvan
- Institute of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
| | - Tomáš Vičar
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
| | - Petr Babula
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic
| | - Josef Mašek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Pavel Kulich
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Monika Pávková Goldbergová
- Institute of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 753/5, 625 00, Brno, Czech Republic.
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11
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Gebauer J, Ondruš J, Kulich P, Novotný L, Sałamatin R, Husa P, Novobilský A. The first case of periorbital human dirofilariasis in the Czech Republic. Parasitol Res 2021; 120:739-742. [PMID: 33415394 DOI: 10.1007/s00436-020-07003-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/02/2020] [Indexed: 11/25/2022]
Abstract
Dirofilaria repens and Dirofilaria immitis are the most common filarial species affecting humans in Europe. Dirofilaria repens causes subcutaneous or ocular infection, whereas D. immitis is responsible mainly for the pulmonary form. In this report, we present the first human case of periorbital dirofilariasis in the Czech Republic. A 58-year-old woman suffered from an eyelid oedema, redness and pain in the left eye. After excising the parasite from her eyelid, all clinical symptoms disappeared. Based on the morphology and cytochrome oxidase I sequencing, the parasite was identified as D. repens. Histology revealed that the excised worm was female with absent microfilariae in uteri. With respect to the length of the incubation period and the sequence identity with a known Czech isolate, we concluded that D. repens was most likely of autochthonous origin.
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Affiliation(s)
- Jan Gebauer
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Jaroslav Ondruš
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Pavel Kulich
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Ladislav Novotný
- Novopath s.r.o., Vrchlického 230, 533 45, Čeperka, Czech Republic
- Finn Pathologists, CVS Group, One Eyed Lane, Weybread, Norfolk, UK
| | - Rusłan Sałamatin
- Department of General Biology and Parasitology, Medical University of Warsaw, 02-004, Warsaw, Poland
| | - Petr Husa
- Department of Infectious Diseases, University Hospital Brno, Jihlavská 340/20, Brno, Czech Republic
- Faculty of Medicine, Masaryk University, Kamenice 735/5, Brno, Czech Republic
| | - Adam Novobilský
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic.
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12
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Ondruš J, Hubatka F, Kulich P, Odehnalová N, Harabiš V, Hesko B, Sychra O, Široký P, Turánek J, Novobilský A. A novel approach to imaging engorged ticks: Micro-CT scanning of Ixodes ricinus fed on blood enriched with gold nanoparticles. Ticks Tick Borne Dis 2020; 12:101559. [PMID: 33137638 DOI: 10.1016/j.ttbdis.2020.101559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/02/2020] [Accepted: 09/07/2020] [Indexed: 11/16/2022]
Abstract
Micro-computed tomography (micro-CT) is an exceptional imaging modality which is limited in visualizing soft biological tissues that need pre-examination contrasting steps, which can cause serious deformation to sizeable specimens like engorged ticks. The aim of this study was to develop a new technique to bypass these limitations and allow the imaging of fed ticks in their natural state. To accomplish this, adult Ixodes ricinus females were allowed to engorge in vitro on blood supplemented with PEGylated gold nanoparticles (PEG-AuNPs). In total, 73/120 females divided into 6 groups engorged on blood enriched with 0.07-2.16 mg PEG-AuNPs per ml of blood. No toxic effect was observed for any of the tested groups compared to the control group, in which 12/20 females engorged on clear blood. The ticks were scanned on a Bruker micro-CT SkyScan 1276. The mean radiodensity of the examined ticks exceeded 0 Hounsfield Units only in the case of the two groups with the highest concentration. The best contrast was observed in ticks engorged on blood with the highest tested concentration of 2.16 mg/mL PEG-AuNPs. In these ticks, the midgut and rectal sac were clearly visible. Also, the midgut lumen volume was computed from segmented image data. The reduction in midgut volume was documented during the egg development process. According to this pilot study, micro-CT of ticks engorged on blood supplemented with contrasting agents in vitro may reveal additional information regarding the engorged ticks' anatomy.
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Affiliation(s)
- Jaroslav Ondruš
- CEITEC - Central European Institute of Technology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic; Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic; Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic.
| | - František Hubatka
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Pavel Kulich
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Nikola Odehnalová
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Vratislav Harabiš
- Department of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, 616 00, Brno, Czech Republic
| | - Branislav Hesko
- Department of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, 616 00, Brno, Czech Republic
| | - Oldřich Sychra
- Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
| | - Pavel Široký
- CEITEC - Central European Institute of Technology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic; Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
| | - Jaroslav Turánek
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Adam Novobilský
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
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13
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Vrablikova A, Hezova R, Kotoucek J, Kulich P, Turanek-Knotigova P, Gebauer J, Fojtikova M, Psikal I, Turanek J. Chimeric VP1-PCV2bCap protein as antigen for construction of recombinant vaccine against porcine circovirus type 2. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.167.36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Porcine circovirus type 2 (PCV2) is the main causative agents of post-weaning multi-systemic wasting syndrome leading to significant economic losses in swine population. Although vaccination is the most effective strategy to decrease morbidity and mortality rate, the virus persist in immunized populations and causes subclinical infections with symptoms similar to porcine circovirus diseases.
To develop new effective vaccine against PCV2 infection, we prepared chimeric complex VP1-PCV2bCap containing PCV2bCap protein fused with mouse polyomavirus (MPyV). Complex was expressed in baculovirus expression system and purified by nickel agarose. From eluate containing large aggregates of purified proteins, fraction containing pantameres of VP1-PCV2bCap protein was separated by Asymmetrical flow field-flow fractionation and fractions were analyzed by electron microscopy with nano-gold labeling of PCV2Cap portion of the fused protein.
6 weeks old BALB/c mice were subcutaneously vaccinated by 50ug of purified chimeric protein alone or in combination with incomplete Freund adjuvants (50%) or Emulsigen (10%). Immunity response was monitored by indirect ELISA. After the first immunization strong immunity response that gradually increased after the second and third immunization was detected in all mice immunized by chimeric protein. The best immunity response was detected in mice immunized by vaccine with Emulsigen (10%) as adjuvant.
Purified chimeric protein VP1-PCV2bCap has a high potential as a DIVA (differentiating infected form vaccinated animals) vaccine against PCV2b infections in pigs. The biggest benefit of this type of vaccine is possibility to distinguish between naturally infected and vaccinated animals
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Affiliation(s)
| | - Renata Hezova
- 1Veterinary Research Institute, Brno, Czech Republic
| | - Jan Kotoucek
- 1Veterinary Research Institute, Brno, Czech Republic
| | - Pavel Kulich
- 1Veterinary Research Institute, Brno, Czech Republic
| | | | - Jan Gebauer
- 1Veterinary Research Institute, Brno, Czech Republic
| | | | - Ivan Psikal
- 1Veterinary Research Institute, Brno, Czech Republic
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14
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Zachova K, masek J, Bartheldyova E, Krupka M, Kulich P, Turanek J, Raska M. Liposomes represent a perfect tool to enhance the cross-presentation effectivity of viral HIV-1 p24 protein fused with heat shock protein 70. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.140.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Current approaches focusing on anti-viral and anti-tumor vaccines developement tend to induce strong CD4 T cell response leading in antibodies production and simultaneously, efficient CD8 T cell activation responsible for cytotoxic elimination of infected cells. The p24 protein from HIV-1 virus is a relatively conserved but poorly immunogenic protein. Its fusion with host heat shock protein 70 (hsp70) enhanced the immune response to p24 including cross-presentation on MHC I molecules, despite the recognition by antigen presenting cells as an exogenous antigen. Cross-presentation efficacy and immune response was supported by binding this construct to liposomes containing aminooxy lipids allowing further modification by click chemistry. Hsp70-p24 was bound to liposome surface and used in cDC1 cell line (DCs from murine spleen) and mice vaccination model. Activation markers, MHCI expression, apoptosis assay and proliferation efficacy was analyzed. Expression of DC cell-surface activation markers CD40, CD86 and also MHC I was increased in hsp70-p24 pulsed cells as much as LPS, but when antigens coupled to liposome expression was significantly higher. None of the constructs activated CD86 expression as much as the LPS. Studies on hepatocytes transfected by hsp70-p24 encoding plasmid DNA showed increased death of hepatocytes co-cultivated with splenocytes from mice vaccinated by hsp70-p24-liposome in comparison to hsp70-p24 alone. Activation markers on CD8 T cells from vaccinated mice were enhanced after co-cultivation with hsp70-p24-liposome pulsed cDC1 cells or bone marrow derived dendritic cells. All these results clearly show that coupling of antigen with liposomes leads to effective CD4 and also CD8 T cell activation.
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Affiliation(s)
- Katerina Zachova
- 1Department of Imunology, Faculty of Medicine, Palacky University, Olomouc, Czech Republic
| | - Josef masek
- 2Veterinary Research Institute, Brno, Czech Republic
| | | | - Michal Krupka
- 1Department of Imunology, Faculty of Medicine, Palacky University, Olomouc, Czech Republic
| | - Pavel Kulich
- 2Veterinary Research Institute, Brno, Czech Republic
| | | | - Milan Raska
- 1Department of Imunology, Faculty of Medicine, Palacky University, Olomouc, Czech Republic
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15
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Vysloužil J, Kulich P, Zeman T, Vaculovič T, Tvrdoňová M, Mikuška P, Večeřa Z, Stráská J, Moravec P, Balcar VJ, Šerý O. Subchronic continuous inhalation exposure to zinc oxide nanoparticles induces pulmonary cell response in mice. J Trace Elem Med Biol 2020; 61:126511. [PMID: 32294608 DOI: 10.1016/j.jtemb.2020.126511] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 02/21/2020] [Accepted: 03/18/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVES We used mice as an animal model to investigate the entry of ZnO nanoparticles from the ambient air into the lungs and other organs, subsequent changes in Zn levels and the impact on the transcription of Zn homeostasis-related genes in the lungs. METHODS The mice were exposed to two concentrations of ZnO nanoparticles; lower (6.46 × 104 particles/cm3) and higher (1.93 × 106 particles/cm3), allowed to breathe the nanoparticles in the air for 12 weeks and subjected to necropsy. Characterization of the ZnO nanoparticles was done using transmission electron microscopy (TEM). Energy-dispersive X-ray (EDX) spectroscopy was used to quantify ZnO nanoparticles in the lungs, brain, liver and kidney. The total zinc content in the lungs, brain, liver, kidney, red blood cells and plasma was estimated by inductively coupled plasma mass spectroscopy (ICP-MS). Transcription rate of the genes was evaluated by RealTime PCR. RESULTS The two concentration of ZnO nanoparticles in the ambient air produced two different outcomes. The lower concentration resulted in significant increases in Zn content of the liver while the higher concentration significantly increased Zn in the lungs (p < 0.05). Additionally, at the lower concentration, Zn content was found to be lower in brain tissue (p < 0.05). Using TEM/EDX we detected ZnO nanoparticles inside the cells in the lungs, kidney and liver. Inhaling ZnO NP at the higher concentration increased the levels of mRNA of the following genes in the lungs: Mt2 (2.56 fold), Slc30a1 (1.52 fold) and Slc30a5 (2.34 fold). At the lower ZnO nanoparticle concentration, only Slc30a7 mRNA levels in the lungs were up (1.74 fold). Thus the two air concentrations of ZnO nanoparticles produced distinct effects on the expression of the Zn-homeostasis related genes. CONCLUSION Until adverse health effects of ZnO nanoparticles deposited in organs such as lungs are further investigated and/or ruled out, the exposure to ZnO nanoparticles in aerosols should be avoided or minimised.
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Affiliation(s)
- Jan Vysloužil
- Laboratory of Neurobiology and Pathological Physiology, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Veveří 967/97, 602 00, Brno, Czech Republic; Laboratory of Neurobiology and Molecular Psychiatry, Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Pavel Kulich
- Laboratory of Neurobiology and Pathological Physiology, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Veveří 967/97, 602 00, Brno, Czech Republic
| | - Tomáš Zeman
- Laboratory of Neurobiology and Pathological Physiology, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Veveří 967/97, 602 00, Brno, Czech Republic
| | - Tomáš Vaculovič
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Michaela Tvrdoňová
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic
| | - Pavel Mikuška
- Institute of Analytical Chemistry, Academy of Sciences of the Czech Republic, Veveří 967/97, 602 00, Brno, Czech Republic
| | - Zbyněk Večeřa
- Institute of Analytical Chemistry, Academy of Sciences of the Czech Republic, Veveří 967/97, 602 00, Brno, Czech Republic
| | - Jana Stráská
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| | - Pavel Moravec
- Laboratory of Aerosol Chemistry and Physics, Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 2/135, 165 02 Prague, Czech Republic
| | - Vladimir J Balcar
- Laboratory of Neurobiology and Pathological Physiology, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Veveří 967/97, 602 00, Brno, Czech Republic; Bosch Institute and Discipline of Anatomy and Histology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Anderson Stuart Building F13, Sydney, NSW, 2006, Australia
| | - Omar Šerý
- Laboratory of Neurobiology and Pathological Physiology, Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Veveří 967/97, 602 00, Brno, Czech Republic; Laboratory of Neurobiology and Molecular Psychiatry, Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00, Brno, Czech Republic.
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16
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Kotouček J, Hubatka F, Mašek J, Kulich P, Velínská K, Bezděková J, Fojtíková M, Bartheldyová E, Tomečková A, Stráská J, Hrebík D, Macaulay S, Kratochvílová I, Raška M, Turánek J. Preparation of nanoliposomes by microfluidic mixing in herring-bone channel and the role of membrane fluidity in liposomes formation. Sci Rep 2020; 10:5595. [PMID: 32221374 PMCID: PMC7101380 DOI: 10.1038/s41598-020-62500-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 03/10/2020] [Indexed: 11/23/2022] Open
Abstract
Introduction of microfluidic mixing technique opens a new door for preparation of the liposomes and lipid-based nanoparticles by on-chip technologies that are applicable in a laboratory and industrial scale. This study demonstrates the role of phospholipid bilayer fragment as the key intermediate in the mechanism of liposome formation by microfluidic mixing in the channel with “herring-bone” geometry used with the instrument NanoAssemblr. The fluidity of the lipid bilayer expressed as fluorescence anisotropy of the probe N,N,N-Trimethyl-4-(6-phenyl-1,3,5-hexatrien-1-yl) was found to be the basic parameter affecting the final size of formed liposomes prepared by microfluidic mixing of an ethanol solution of lipids and water phase. Both saturated and unsaturated lipids together with various content of cholesterol were used for liposome preparation and it was demonstrated, that an increase in fluidity results in a decrease of liposome size as analyzed by DLS. Gadolinium chelating lipids were used to visualize the fine structure of liposomes and bilayer fragments by CryoTEM. Experimental data and theoretical calculations are in good accordance with the theory of lipid disc micelle vesiculation.
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Affiliation(s)
- Jan Kotouček
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00, Brno, Czech Republic
| | - František Hubatka
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00, Brno, Czech Republic
| | - Josef Mašek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00, Brno, Czech Republic
| | - Pavel Kulich
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00, Brno, Czech Republic
| | - Kamila Velínská
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00, Brno, Czech Republic
| | - Jaroslava Bezděková
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00, Brno, Czech Republic.,Mendel University in Brno, Department of Chemistry and Biochemistry, Zemedelska 1, 61300, Brno, Czech Republic
| | - Martina Fojtíková
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00, Brno, Czech Republic
| | - Eliška Bartheldyová
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00, Brno, Czech Republic
| | - Andrea Tomečková
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00, Brno, Czech Republic
| | - Jana Stráská
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 11, 78371, Olomouc, Czech Republic
| | - Dominik Hrebík
- Central European Institute of Technology CEITEC, Structural Virology, Masaryk University, Kamenice 753/5, 62500, Brno, Czech Republic
| | - Stuart Macaulay
- Malvern Panalytical, Malvern, Worcestershire, United Kingdom
| | - Irena Kratochvílová
- Institute of Physics, Czech Academy of Sciences, Na Slovance 2, Prague 8, Czechia.
| | - Milan Raška
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00, Brno, Czech Republic. .,Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hněvotínská 3, 775 15, Olomouc, Czech Republic.
| | - Jaroslav Turánek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00, Brno, Czech Republic.
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17
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Rossner P, Vrbova K, Strapacova S, Rossnerova A, Ambroz A, Brzicova T, Libalova H, Javorkova E, Kulich P, Vecera Z, Mikuska P, Coufalik P, Krumal K, Capka L, Docekal B, Moravec P, Sery O, Misek I, Fictum P, Fiser K, Machala M, Topinka J. Inhalation of ZnO Nanoparticles: Splice Junction Expression and Alternative Splicing in Mice. Toxicol Sci 2020; 168:190-200. [PMID: 30500950 PMCID: PMC6390655 DOI: 10.1093/toxsci/kfy288] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [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] [Indexed: 01/08/2023] Open
Abstract
Despite the wide application of nanomaterials, toxicity studies of nanoparticles (NP) are often limited to in vitro cell models, and the biological impact of NP exposure in mammals has not been thoroughly investigated. Zinc oxide (ZnO) NPs are commonly used in various consumer products. To evaluate the effects of the inhalation of ZnO NP in mice, we studied splice junction expression in the lungs as a proxy to gene expression changes analysis. Female ICR mice were treated with 6.46 × 104 and 1.93 × 106 NP/cm3 for 3 days and 3 months, respectively. An analysis of differential expression and alternative splicing events in 298 targets (splice junctions) of 68 genes involved in the processes relevant to the biological effects of ZnO NP was conducted using next-generation sequencing. Three days of exposure resulted in the upregulation of IL-6 and downregulation of BID, GSR, NF-kB2, PTGS2, SLC11A2, and TXNRD1 splice junction expression; 3 months of exposure increased the expression of splice junctions in ALDH3A1, APAF1, BID, CASP3, DHCR7, GCLC, GCLM, GSR, GSS, EHHADH, FAS, HMOX-1, IFNγ, NF-kB1, NQO-1, PTGS1, PTGS2, RAD51, RIPK2, SRXN1, TRAF6, and TXNRD1. Alternative splicing of TRAF6 and TXNRD1 was induced after 3 days of exposure to 1.93 × 106 NP/cm3. In summary, we observed changes of splice junction expression in genes involved in oxidative stress, apoptosis, immune response, inflammation, and DNA repair, as well as the induction of alternative splicing in genes associated with oxidative stress and inflammation. Our data indicate the potential negative biological effects of ZnO NP inhalation.
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Affiliation(s)
- Pavel Rossner
- *Department of Genetic Toxicology and Nanotoxicology, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague 14220, Czech Republic
| | - Kristyna Vrbova
- *Department of Genetic Toxicology and Nanotoxicology, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague 14220, Czech Republic
| | - Simona Strapacova
- Department of Chemistry and Toxicology, Veterinary Research Institute, Brno 62100, Czech Republic
| | - Andrea Rossnerova
- *Department of Genetic Toxicology and Nanotoxicology, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague 14220, Czech Republic
| | - Antonin Ambroz
- *Department of Genetic Toxicology and Nanotoxicology, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague 14220, Czech Republic
| | - Tana Brzicova
- *Department of Genetic Toxicology and Nanotoxicology, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague 14220, Czech Republic.,Department for Risk Research and Management, Faculty of Safety Engineering, VSB-Technical University of Ostrava, Ostrava 700 30, Czech Republic
| | - Helena Libalova
- *Department of Genetic Toxicology and Nanotoxicology, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague 14220, Czech Republic
| | - Eliska Javorkova
- Department of Transplantation Immunology, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague 14220, Czech Republic
| | - Pavel Kulich
- Department of Chemistry and Toxicology, Veterinary Research Institute, Brno 62100, Czech Republic
| | - Zbynek Vecera
- Department of Environmental Analytical Chemistry, Institute of Analytical Chemistry of the Czech Academy of Sciences, Brno 60200, Czech Republic
| | - Pavel Mikuska
- Department of Environmental Analytical Chemistry, Institute of Analytical Chemistry of the Czech Academy of Sciences, Brno 60200, Czech Republic
| | - Pavel Coufalik
- Department of Environmental Analytical Chemistry, Institute of Analytical Chemistry of the Czech Academy of Sciences, Brno 60200, Czech Republic
| | - Kamil Krumal
- Department of Environmental Analytical Chemistry, Institute of Analytical Chemistry of the Czech Academy of Sciences, Brno 60200, Czech Republic
| | - Lukas Capka
- Department of Environmental Analytical Chemistry, Institute of Analytical Chemistry of the Czech Academy of Sciences, Brno 60200, Czech Republic
| | - Bohumil Docekal
- Department of Environmental Analytical Chemistry, Institute of Analytical Chemistry of the Czech Academy of Sciences, Brno 60200, Czech Republic
| | - Pavel Moravec
- Department of Aerosol Chemistry and Physics, Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Prague 16502, Czech Republic
| | - Omar Sery
- Department of Animal Embryology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Brno 60200, Czech Republic
| | - Ivan Misek
- Department of Animal Embryology, Institute of Animal Physiology and Genetics of the Czech Academy of Sciences, Brno 60200, Czech Republic
| | - Petr Fictum
- Department of Pathological Morphology and Parasitology, of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences, Brno 612 42, Czech Republic
| | - Karel Fiser
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University Prague and University Hospital Motol, Prague 15006, Czech Republic
| | - Miroslav Machala
- Department of Chemistry and Toxicology, Veterinary Research Institute, Brno 62100, Czech Republic
| | - Jan Topinka
- *Department of Genetic Toxicology and Nanotoxicology, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague 14220, Czech Republic
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18
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Šimečková P, Hubatka F, Kotouček J, Turánek Knötigová P, Mašek J, Slavík J, Kováč O, Neča J, Kulich P, Hrebík D, Stráská J, Pěnčíková K, Procházková J, Diviš P, Macaulay S, Mikulík R, Raška M, Machala M, Turánek J. Gadolinium labelled nanoliposomes as the platform for MRI theranostics: in vitro safety study in liver cells and macrophages. Sci Rep 2020; 10:4780. [PMID: 32179785 PMCID: PMC7075985 DOI: 10.1038/s41598-020-60284-z] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 12/18/2019] [Indexed: 12/14/2022] Open
Abstract
Gadolinium (Gd)-based contrast agents are extensively used for magnetic resonance imaging (MRI). Liposomes are potential nanocarrier-based biocompatible platforms for development of new generations of MRI diagnostics. Liposomes with Gd-complexes (Gd-lip) co-encapsulated with thrombolytic agents can serve both for imaging and treatment of various pathological states including stroke. In this study, we evaluated nanosafety of Gd-lip containing PE-DTPA chelating Gd+3 prepared by lipid film hydration method. We detected no cytotoxicity of Gd-lip in human liver cells including cancer HepG2, progenitor (non-differentiated) HepaRG, and differentiated HepaRG cells. Furthermore, no potential side effects of Gd-lip were found using a complex system including general biomarkers of toxicity, such as induction of early response genes, oxidative, heat shock and endoplasmic reticulum stress, DNA damage responses, induction of xenobiotic metabolizing enzymes, and changes in sphingolipid metabolism in differentiated HepaRG. Moreover, Gd-lip did not show pro-inflammatory effects, as assessed in an assay based on activation of inflammasome NLRP3 in a model of human macrophages, and release of eicosanoids from HepaRG cells. In conclusion, this in vitro study indicates potential in vivo safety of Gd-lip with respect to hepatotoxicity and immunopathology caused by inflammation.
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Affiliation(s)
| | | | - Jan Kotouček
- Veterinary Research Institute, Brno, Czech Republic
| | | | - Josef Mašek
- Veterinary Research Institute, Brno, Czech Republic
| | - Josef Slavík
- Veterinary Research Institute, Brno, Czech Republic
| | - Ondrej Kováč
- Veterinary Research Institute, Brno, Czech Republic
| | - Jiří Neča
- Veterinary Research Institute, Brno, Czech Republic
| | - Pavel Kulich
- Veterinary Research Institute, Brno, Czech Republic
| | - Dominik Hrebík
- Central European Institute of Technology CEITEC, Structural Virology, Masaryk University, Brno, Czech Republic
| | - Jana Stráská
- Regional Centre of Advanced Technologies and Materials, Palacký University, Olomouc, Czech Republic
| | | | | | - Pavel Diviš
- Faculty of Chemistry, Technical University, Brno, Czech Republic
| | | | - Robert Mikulík
- International Clinical Research Centre, St. Anne's University Hospital Brno, Brno, Czech Republic
- Neurology Department, St. Anne's University Hospital and Masaryk University, Brno, Czech Republic
| | - Milan Raška
- Veterinary Research Institute, Brno, Czech Republic
- Department of Immunology, Faculty of Medicine and Dentistry, Palacký University, Olomouc, Czech Republic
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19
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Svadlakova T, Hubatka F, Turanek Knotigova P, Kulich P, Masek J, Kotoucek J, Macak J, Motola M, Kalbac M, Kolackova M, Vankova R, Vicherkova P, Malkova A, Simeckova P, Volkov Y, Prina-Mello A, Kratochvilova I, Fiala Z, Raska M, Krejsek J, Turanek J. Proinflammatory Effect of Carbon-Based Nanomaterials: In Vitro Study on Stimulation of Inflammasome NLRP3 via Destabilisation of Lysosomes. Nanomaterials (Basel) 2020; 10:E418. [PMID: 32120988 PMCID: PMC7152843 DOI: 10.3390/nano10030418] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 02/21/2020] [Accepted: 02/24/2020] [Indexed: 12/12/2022]
Abstract
Carbon-based nanomaterials (C-BNM) have recently attracted an increased attention as the materials with potential applications in industry and medicine. Bioresistance and proinflammatory potential of C-BNM is the main obstacle for their medicinal application which was documented in vivo and in vitro. However, there are still limited data especially on graphene derivatives such as graphene platelets (GP). In this work, we compared multi-walled carbon nanotubes (MWCNT) and two different types of pristine GP in their potential to activate inflammasome NLRP3 (The nod-like receptor family pyrin domain containing 3) in vitro. Our study is focused on exposure of THP-1/THP1-null cells and peripheral blood monocytes to C-BNM as representative models of canonical and alternative pathways, respectively. Although all nanomaterials were extensively accumulated in the cytoplasm, increasing doses of all C-BNM did not lead to cell death. We observed direct activation of NLRP3 via destabilization of lysosomes and release of cathepsin B into cytoplasm only in the case of MWCNTs. Direct activation of NLRP3 by both GP was statistically insignificant but could be induced by synergic action with muramyl dipeptide (MDP), as a representative molecule of the family of pathogen-associated molecular patterns (PAMPs). This study demonstrates a possible proinflammatory potential of GP and MWCNT acting through NLRP3 activation.
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Affiliation(s)
- Tereza Svadlakova
- Institute of Clinical Immunology and Allergology, University Hospital Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University, 50005 Hradec Kralove, Czech Republic; (T.S.); (M.K.); (R.V.); (P.V.)
- Institute of Hygiene and Preventive Medicine, Faculty of Medicine in Hradec Kralove, Charles University, 50003 Hradec Kralove, Czech Republic; (A.M.); (Z.F.)
| | - Frantisek Hubatka
- Veterinary Research Institute, 62100 Brno, Czech Republic; (F.H.); (P.T.K.); (P.K.); (J.M.); (J.K.); (P.S.); (M.R.)
| | - Pavlina Turanek Knotigova
- Veterinary Research Institute, 62100 Brno, Czech Republic; (F.H.); (P.T.K.); (P.K.); (J.M.); (J.K.); (P.S.); (M.R.)
| | - Pavel Kulich
- Veterinary Research Institute, 62100 Brno, Czech Republic; (F.H.); (P.T.K.); (P.K.); (J.M.); (J.K.); (P.S.); (M.R.)
| | - Josef Masek
- Veterinary Research Institute, 62100 Brno, Czech Republic; (F.H.); (P.T.K.); (P.K.); (J.M.); (J.K.); (P.S.); (M.R.)
| | - Jan Kotoucek
- Veterinary Research Institute, 62100 Brno, Czech Republic; (F.H.); (P.T.K.); (P.K.); (J.M.); (J.K.); (P.S.); (M.R.)
| | - Jan Macak
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, 53002 Pardubice, Czech Republic; (J.M.); (M.M.)
| | - Martin Motola
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology, University of Pardubice, 53002 Pardubice, Czech Republic; (J.M.); (M.M.)
| | - Martin Kalbac
- J. Heyrovsky Institute of Physical Chemistry of the Czech Academy of Sciences, 18223 Prague, Czech Republic;
| | - Martina Kolackova
- Institute of Clinical Immunology and Allergology, University Hospital Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University, 50005 Hradec Kralove, Czech Republic; (T.S.); (M.K.); (R.V.); (P.V.)
| | - Radka Vankova
- Institute of Clinical Immunology and Allergology, University Hospital Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University, 50005 Hradec Kralove, Czech Republic; (T.S.); (M.K.); (R.V.); (P.V.)
| | - Petra Vicherkova
- Institute of Clinical Immunology and Allergology, University Hospital Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University, 50005 Hradec Kralove, Czech Republic; (T.S.); (M.K.); (R.V.); (P.V.)
| | - Andrea Malkova
- Institute of Hygiene and Preventive Medicine, Faculty of Medicine in Hradec Kralove, Charles University, 50003 Hradec Kralove, Czech Republic; (A.M.); (Z.F.)
| | - Pavlina Simeckova
- Veterinary Research Institute, 62100 Brno, Czech Republic; (F.H.); (P.T.K.); (P.K.); (J.M.); (J.K.); (P.S.); (M.R.)
| | - Yuri Volkov
- Department of Clinical Medicine/Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, D08 W9RT, Dublin, Ireland; (Y.V.); (A.P.-M.)
- Department of Histology, Cytology and Embryology, First Moscow State Sechenov Medical University, 119992 Moscow, Russia
| | - Adriele Prina-Mello
- Department of Clinical Medicine/Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, D08 W9RT, Dublin, Ireland; (Y.V.); (A.P.-M.)
| | - Irena Kratochvilova
- Institute of Physics, Czech Academy of Sciences, 18200 Prague, Czech Republic;
| | - Zdenek Fiala
- Institute of Hygiene and Preventive Medicine, Faculty of Medicine in Hradec Kralove, Charles University, 50003 Hradec Kralove, Czech Republic; (A.M.); (Z.F.)
| | - Milan Raska
- Veterinary Research Institute, 62100 Brno, Czech Republic; (F.H.); (P.T.K.); (P.K.); (J.M.); (J.K.); (P.S.); (M.R.)
- Department of Immunology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, 77515 Olomouc, Czech Republic
| | - Jan Krejsek
- Institute of Clinical Immunology and Allergology, University Hospital Hradec Kralove and Faculty of Medicine in Hradec Kralove, Charles University, 50005 Hradec Kralove, Czech Republic; (T.S.); (M.K.); (R.V.); (P.V.)
| | - Jaroslav Turanek
- Veterinary Research Institute, 62100 Brno, Czech Republic; (F.H.); (P.T.K.); (P.K.); (J.M.); (J.K.); (P.S.); (M.R.)
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20
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Grybchuk D, Macedo DH, Kleschenko Y, Kraeva N, Lukashev AN, Bates PA, Kulich P, Leštinová T, Volf P, Kostygov AY, Yurchenko V. The First Non-LRV RNA Virus in Leishmania. Viruses 2020; 12:v12020168. [PMID: 32024293 PMCID: PMC7077295 DOI: 10.3390/v12020168] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 01/06/2020] [Revised: 01/21/2020] [Accepted: 01/29/2020] [Indexed: 12/25/2022] Open
Abstract
In this work, we describe the first Leishmania-infecting leishbunyavirus-the first virus other than Leishmania RNA virus (LRV) found in trypanosomatid parasites. Its host is Leishmania martiniquensis, a human pathogen causing infections with a wide range of manifestations from asymptomatic to severe visceral disease. This virus (LmarLBV1) possesses many characteristic features of leishbunyaviruses, such as tripartite organization of its RNA genome, with ORFs encoding RNA-dependent RNA polymerase, surface glycoprotein, and nucleoprotein on L, M, and S segments, respectively. Our phylogenetic analyses suggest that LmarLBV1 originated from leishbunyaviruses of monoxenous trypanosomatids and, probably, is a result of genomic re-assortment. The LmarLBV1 facilitates parasites' infectivity in vitro in primary murine macrophages model. The discovery of a virus in L. martiniquensis poses the question of whether it influences pathogenicity of this parasite in vivo, similarly to the LRV in other Leishmania species.
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Affiliation(s)
- Danyil Grybchuk
- Life Science Research Centre, Faculty of Science, University of Ostrava, 71000 Ostrava, Czech Republic; (D.G.); (D.H.M.); (N.K.)
- Central European Institute of Technology, Masaryk University, 60177 Brno, Czech Republic
| | - Diego H. Macedo
- Life Science Research Centre, Faculty of Science, University of Ostrava, 71000 Ostrava, Czech Republic; (D.G.); (D.H.M.); (N.K.)
| | - Yulia Kleschenko
- Martsinovsky Institute of Medical Parasitology, Sechenov University, Moscow 119435, Russia, (A.N.L.)
| | - Natalya Kraeva
- Life Science Research Centre, Faculty of Science, University of Ostrava, 71000 Ostrava, Czech Republic; (D.G.); (D.H.M.); (N.K.)
| | - Alexander N. Lukashev
- Martsinovsky Institute of Medical Parasitology, Sechenov University, Moscow 119435, Russia, (A.N.L.)
| | - Paul A. Bates
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster LA1 4YE, UK;
| | - Pavel Kulich
- Laboratory of Electron Microscopy, Veterinary Research Institute, 62100 Brno, Czech Republic;
| | - Tereza Leštinová
- Department of Parasitology, Faculty of Science, Charles University, 12844 Prague, Czech Republic; (T.L.); (P.V.)
| | - Petr Volf
- Department of Parasitology, Faculty of Science, Charles University, 12844 Prague, Czech Republic; (T.L.); (P.V.)
| | - Alexei Y. Kostygov
- Life Science Research Centre, Faculty of Science, University of Ostrava, 71000 Ostrava, Czech Republic; (D.G.); (D.H.M.); (N.K.)
- Laboratory of Cellular and Molecular Protistology, Zoological Institute of the Russian Academy of Sciences, St. Petersburg 199034, Russia
- Correspondence: (A.Y.K.); (V.Y.)
| | - Vyacheslav Yurchenko
- Life Science Research Centre, Faculty of Science, University of Ostrava, 71000 Ostrava, Czech Republic; (D.G.); (D.H.M.); (N.K.)
- Martsinovsky Institute of Medical Parasitology, Sechenov University, Moscow 119435, Russia, (A.N.L.)
- Correspondence: (A.Y.K.); (V.Y.)
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21
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Mikulik R, Petroková H, Mašek J, Kuchar M, Vítecková Wünschová A, Štikarová H, Bartheldyová E, Kulich P, Hubatka F, Kotoucek J, Turánek Knotigová P, Vohlídalová E, Macaulay S, Dyr JE, Raška M, Malý P, Turánek J. Abstract WP313: Liposomes With Anti-Fibrin Protein Binders to Target Clot in Stroke. Stroke 2020. [DOI: 10.1161/str.51.suppl_1.wp313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction:
Direct clot targeting represents attractive concept for clot imaging as well as targeted delivery of drugs, e.g. thrombolytics. Small protein binders attached to nanoliposomes may target thrombi and deliver drugs although selective affinity to fibrin and not fibrinogen is the main challenge.
Methods:
For identification and preparation of fibrin-specific artificial protein binders derived from scaffolds of albumin-binding domain (ABD) of streptococcal protein G, a highly complex ABD-derived combinatorial library in combination with ribosome display selection was used. In vitro models were used to document delivery of nanoliposomes to human thrombi.
Results:
A recombinant target as a stretch of three identical fibrin fragments of 16 amino acid peptides of the Bβ chain fused to TolA protein carrying polyhistidylated tag and Avitag was constructed. Ribosome display was followed by large-scale ELISA screening of protein binders. Only four protein variants had selective affinity to human fibrin - see figure 1A. The most selective, variant D7, was modified by C-terminal FLAG/His
6
or His
6
/His
6
tag in order to be attached onto the surface of nanoliposomes. The electron microscopy then confirmed the structure of nanoliposome-binder particles. Isothermal titration calorimetry provided dissociation constant for liposome-binder metallochelating bond in the range 10
-7
to 10
-9
for mono- and double-HisTag forms. In vitro, in silicone replica of small diameter artery, the confocal and scanning electron microscopy confirmed a successful binding of D7-attached- to-nanoliposomes to fibrin fibres, see figure 1B.
Conclusions:
We developed binders relatively selective to fibrin, attached them to nanoliposomes, and documented targeting of fibrin in vitro. As the next step, selectivity needs to be now documented in animal studies.
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Affiliation(s)
- Robert Mikulik
- Dept of Neurology, St Annes Univ Hosp, Brno, Czech Republic
| | - Hana Petroková
- Institute of Biotechnology, Czech Academy of Sciences, v.v.i., Vestec, Czech Republic
| | - Josef Mašek
- Dept of Pharmacology and Immunotherapy, Veterinary Rsch Institute, v.v.i., Brno, Czech Republic
| | - Milan Kuchar
- Institute of Biotechnology, Czech Academy of Sciences, v.v.i, Vestec, Czech Republic
| | | | - Hana Štikarová
- Institute of Hematology and Blood Transfusion, Praha, Czech Republic
| | | | - Pavel Kulich
- Veterinary Rsch Institute, v.v.i., Brno, Czech Republic
| | | | - Jan Kotoucek
- Veterinary Rsch Institute, v.v.i., Brno, Czech Republic
| | | | | | | | - Jan E Dyr
- Institute of Hematology and Blood Transfusion, Praha, Czech Republic
| | - Milan Raška
- Veterinary Rsch Institute, v.v.i., Brno, Czech Republic
| | - Petr Malý
- Institute of Biotechnology, Czech Academy of Sciences, v.v.i, Vestec, Czech Republic
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22
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Šimečková P, Marvanová S, Kulich P, Králiková L, Neča J, Procházková J, Machala M. Screening of Cellular Stress Responses Induced by Ambient Aerosol Ultrafine Particle Fraction PM0.5 in A549 Cells. Int J Mol Sci 2019; 20:E6310. [PMID: 31847237 PMCID: PMC6940800 DOI: 10.3390/ijms20246310] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 10/24/2019] [Revised: 11/25/2019] [Accepted: 12/11/2019] [Indexed: 12/19/2022] Open
Abstract
Effects of airborne particles on the expression status of markers of cellular toxic stress and on the release of eicosanoids, linked with inflammation and oxidative damage, remain poorly characterized. Therefore, we proposed a set of various methodological approaches in order to address complexity of PM0.5-induced toxicity. For this purpose, we used a well-characterized model of A549 pulmonary epithelial cells exposed to a non-cytotoxic concentration of ambient aerosol particle fraction PM0.5 for 24 h. Electron microscopy confirmed accumulation of PM0.5 within A549 cells, yet, autophagy was not induced. Expression profiles of various cellular stress response genes that have been previously shown to be involved in early stress responses, namely unfolded protein response, DNA damage response, and in aryl hydrocarbon receptor (AhR) and p53 signaling, were analyzed. This analysis revealed induction of GREM1, EGR1, CYP1A1, CDK1A, PUMA, NOXA and GDF15 and suppression of SOX9 in response to PM0.5 exposure. Analysis of eicosanoids showed no oxidative damage and only a weak anti-inflammatory response. In conclusion, this study helps to identify novel gene markers, GREM1, EGR1, GDF15 and SOX9, that may represent a valuable tool for routine testing of PM0.5-induced in vitro toxicity in lung epithelial cells.
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Affiliation(s)
| | | | | | | | | | | | - Miroslav Machala
- Veterinary Research Institute, Department of Chemistry and Toxicology, Hudcova 296/70, 62100 Brno, Czech Republic; (P.Š.); (S.M.); (P.K.); (L.K.); (J.N.); (J.P.)
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23
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Petroková H, Mašek J, Kuchař M, Vítečková Wünschová A, Štikarová J, Bartheldyová E, Kulich P, Hubatka F, Kotouček J, Turánek Knotigová P, Vohlídalová E, Héžová R, Mašková E, Macaulay S, Dyr JE, Raška M, Mikulík R, Malý P, Turánek J. Targeting Human Thrombus by Liposomes Modified with Anti-Fibrin Protein Binders. Pharmaceutics 2019; 11:pharmaceutics11120642. [PMID: 31810280 PMCID: PMC6955937 DOI: 10.3390/pharmaceutics11120642] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 10/02/2019] [Revised: 11/20/2019] [Accepted: 11/26/2019] [Indexed: 12/22/2022] Open
Abstract
Development of tools for direct thrombus imaging represents a key step for diagnosis and treatment of stroke. Nanoliposomal carriers of contrast agents and thrombolytics can be functionalized to target blood thrombi by small protein binders with selectivity for fibrin domains uniquely formed on insoluble fibrin. We employed a highly complex combinatorial library derived from scaffold of 46 amino acid albumin-binding domain (ABD) of streptococcal protein G, and ribosome display, to identify variants recognizing fibrin cloth in human thrombus. We constructed a recombinant target as a stretch of three identical fibrin fragments of 16 amino acid peptide of the Bβ chain fused to TolA protein. Ribosome display selection followed by large-scale Enzyme-Linked ImmunoSorbent Assay (ELISA) screening provided four protein variants preferentially binding to insoluble form of human fibrin. The most specific binder variant D7 was further modified by C-terminal FLAG/His-Tag or double His-tag for the attachment onto the surface of nanoliposomes via metallochelating bond. D7-His-nanoliposomes were tested using in vitro flow model of coronary artery and their binding to fibrin fibers was demonstrated by confocal and electron microscopy. Thus, we present here the concept of fibrin-targeted binders as a platform for functionalization of nanoliposomes in the development of advanced imaging tools and future theranostics.
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Affiliation(s)
- Hana Petroková
- Laboratory of Ligand Engineering, Institute of Biotechnology, Czech Academy of Sciences, v.v.i., BIOCEV Research Center, Průmyslová 595, 252 50 Vestec, Czech Republic; (H.P.); (M.K.)
| | - Josef Mašek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; (J.M.); (A.V.W.); (E.B.); (P.K.); (F.H.); (J.K.); (P.T.K.); (E.V.); (R.H.); (E.M.)
| | - Milan Kuchař
- Laboratory of Ligand Engineering, Institute of Biotechnology, Czech Academy of Sciences, v.v.i., BIOCEV Research Center, Průmyslová 595, 252 50 Vestec, Czech Republic; (H.P.); (M.K.)
| | - Andrea Vítečková Wünschová
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; (J.M.); (A.V.W.); (E.B.); (P.K.); (F.H.); (J.K.); (P.T.K.); (E.V.); (R.H.); (E.M.)
| | - Jana Štikarová
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, U nemocnice 2094/1, 128 20 Praha 2, Czech Republic; (J.Š.); (J.E.D.)
| | - Eliška Bartheldyová
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; (J.M.); (A.V.W.); (E.B.); (P.K.); (F.H.); (J.K.); (P.T.K.); (E.V.); (R.H.); (E.M.)
| | - Pavel Kulich
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; (J.M.); (A.V.W.); (E.B.); (P.K.); (F.H.); (J.K.); (P.T.K.); (E.V.); (R.H.); (E.M.)
| | - František Hubatka
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; (J.M.); (A.V.W.); (E.B.); (P.K.); (F.H.); (J.K.); (P.T.K.); (E.V.); (R.H.); (E.M.)
| | - Jan Kotouček
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; (J.M.); (A.V.W.); (E.B.); (P.K.); (F.H.); (J.K.); (P.T.K.); (E.V.); (R.H.); (E.M.)
| | - Pavlína Turánek Knotigová
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; (J.M.); (A.V.W.); (E.B.); (P.K.); (F.H.); (J.K.); (P.T.K.); (E.V.); (R.H.); (E.M.)
| | - Eva Vohlídalová
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; (J.M.); (A.V.W.); (E.B.); (P.K.); (F.H.); (J.K.); (P.T.K.); (E.V.); (R.H.); (E.M.)
| | - Renata Héžová
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; (J.M.); (A.V.W.); (E.B.); (P.K.); (F.H.); (J.K.); (P.T.K.); (E.V.); (R.H.); (E.M.)
| | - Eliška Mašková
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; (J.M.); (A.V.W.); (E.B.); (P.K.); (F.H.); (J.K.); (P.T.K.); (E.V.); (R.H.); (E.M.)
| | - Stuart Macaulay
- Malvern Instruments Ltd., Enigma Business Park, Grove Lane, Malvern WR14 1XZ, UK;
| | - Jan Evangelista Dyr
- Department of Biochemistry, Institute of Hematology and Blood Transfusion, U nemocnice 2094/1, 128 20 Praha 2, Czech Republic; (J.Š.); (J.E.D.)
| | - Milan Raška
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; (J.M.); (A.V.W.); (E.B.); (P.K.); (F.H.); (J.K.); (P.T.K.); (E.V.); (R.H.); (E.M.)
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hněvotínská 3, 775 15 Olomouc, Czech Republic
| | - Robert Mikulík
- The International Clinical Research Center ICRC and Neurology Department of St. Anne’s University Hospital in Brno, Pekařská 53, 656 91 Brno, Czech Republic;
| | - Petr Malý
- Laboratory of Ligand Engineering, Institute of Biotechnology, Czech Academy of Sciences, v.v.i., BIOCEV Research Center, Průmyslová 595, 252 50 Vestec, Czech Republic; (H.P.); (M.K.)
- Correspondence: (P.M.); (J.T.); Tel.: +420-325-873-763 (P.M.); +420-732-813-577 (J.T.)
| | - Jaroslav Turánek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; (J.M.); (A.V.W.); (E.B.); (P.K.); (F.H.); (J.K.); (P.T.K.); (E.V.); (R.H.); (E.M.)
- Correspondence: (P.M.); (J.T.); Tel.: +420-325-873-763 (P.M.); +420-732-813-577 (J.T.)
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24
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Knötigová PT, Mašek J, Hubatka F, Kotouček J, Kulich P, Šimečková P, Bartheldyová E, Machala M, Švadláková T, Krejsek J, Vaškovicová N, Skoupý R, Krzyžánek V, Macaulay S, Katzuba M, Fekete L, Ashcheulov P, Raška M, Kratochvílová I, Turánek J. Application of Advanced Microscopic Methods to Study the Interaction of Carboxylated Fluorescent Nanodiamonds with Membrane Structures in THP-1 Cells: Activation of Inflammasome NLRP3 as the Result of Lysosome Destabilization. Mol Pharm 2019; 16:3441-3451. [PMID: 31184896 DOI: 10.1021/acs.molpharmaceut.9b00225] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nanodiamonds (ND), especially fluorescent NDs, represent potentially applicable drug and probe carriers for in vitro/in vivo applications. The main purpose of this study was to relate physical-chemical properties of carboxylated NDs to their intracellular distribution and impact on membranes and cell immunity-activation of inflammasome in the in vitro THP-1 cell line model. Dynamic light scattering, nanoparticle tracking analysis, and microscopic methods were used to characterize ND particles and their intracellular distribution. Fluorescent NDs penetrated the cell membranes by both macropinocytosis and mechanical cutting through cell membranes. We proved accumulation of fluorescent NDs in lysosomes. In this case, lysosomes were destabilized and cathepsin B was released into the cytoplasm and triggered pathways leading to activation of inflammasome NLRP3, as detected in THP-1 cells. Activation of inflammasome by NDs represents an important event that could underlie the described toxicological effects in vivo induced by NDs. According to our knowledge, this is the first in vitro study demonstrating direct activation of inflammasome by NDs. These findings are important for understanding the mechanism(s) of action of ND complexes and explain the ambiguity of the existing toxicological data.
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Affiliation(s)
| | - Josef Mašek
- Veterinary Research Institute , Brno 62100 , Czech Republic
| | | | - Jan Kotouček
- Veterinary Research Institute , Brno 62100 , Czech Republic
| | - Pavel Kulich
- Veterinary Research Institute , Brno 62100 , Czech Republic
| | | | | | | | - Tereza Švadláková
- Faculty of Medicine, Department of Clinical Immunology and Allergology , Charles University , Hradec Králové 500 03 , Czech Republic
| | - Jan Krejsek
- Faculty of Medicine, Department of Clinical Immunology and Allergology , Charles University , Hradec Králové 500 03 , Czech Republic
| | - Naděžda Vaškovicová
- Institute of Scientific Instruments , Czech Academy of Sciences , Brno 61264 , Czech Republic
| | - Radim Skoupý
- Institute of Scientific Instruments , Czech Academy of Sciences , Brno 61264 , Czech Republic
| | - Vladislav Krzyžánek
- Institute of Scientific Instruments , Czech Academy of Sciences , Brno 61264 , Czech Republic
| | | | | | - Ladislav Fekete
- Institute of Physics of the Czech Academy of Sciences , Na Slovance 2 , CZ-182 21 , Prague 8, Czech Republic
| | - Petr Ashcheulov
- Institute of Physics of the Czech Academy of Sciences , Na Slovance 2 , CZ-182 21 , Prague 8, Czech Republic
| | - Milan Raška
- Veterinary Research Institute , Brno 62100 , Czech Republic.,Department of Immunology, Faculty of Medicine and Dentistry , Palacky University Olomouc , Olomouc 775 15 , Czech Republic
| | - Irena Kratochvílová
- Institute of Physics of the Czech Academy of Sciences , Na Slovance 2 , CZ-182 21 , Prague 8, Czech Republic
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25
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Holan V, Javorkova E, Vrbova K, Vecera Z, Mikuska P, Coufalik P, Kulich P, Skoupy R, Machala M, Zajicova A, Rossner P. A murine model of the effects of inhaled CuO nanoparticles on cells of innate and adaptive immunity - a kinetic study of a continuous three-month exposure. Nanotoxicology 2019; 13:952-963. [PMID: 31012774 DOI: 10.1080/17435390.2019.1602679] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The inhalation or application of nanoparticles (NPs) has serious impacts on immunological reactivity. However, the effects of NPs on the immune system are influenced by numerous factors, which cause a high variability in the results. Here, mice were exposed to a three month continuous inhalation of copper oxide (CuO) NPs, and at different time intervals (3, 14, 42 and 93 days), the composition of cell populations of innate and adaptive immunity was evaluated in the spleen by flow cytometry. The ability of spleen cells from exposed and control mice to respond to stimulation with T- or B-cell mitogens by proliferation and by production of cytokines IL-2, IL-6, IL-10, IL-17 and IFN-γ was characterized. The results showed that the inhalation of CuO NPs predominantly affects the cells of innate immunity (changes in the proportion of eosinophils, neutrophils, macrophages and antigen-presenting cells) with a minimal effect on the percentage of T and B lymphocytes. However, the proliferative and secretory activity of T cells was already significantly enhanced after 3 days from the start of inhalation, decreased on day 14 and normalized at the later time intervals. There was no correlation between the impacts of NPs on the cells of innate and adaptive immunity. The results have shown that the inhalation of CuO NPs significantly alters the composition of cell populations of innate immunity and modulates the proliferation and production of cytokines by cells of the adaptive immune system. However, the immunomodulatory effects of inhaled NPs strongly depend on the time of inhalation.
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Affiliation(s)
- Vladimir Holan
- Department of Transplantation Immunology, Institute of Experimental Medicine of the Czech Academy of Sciences , Prague , Czech Republic.,Department of Cell Biology, Faculty of Science, Charles University , Prague , Czech Republic
| | - Eliska Javorkova
- Department of Transplantation Immunology, Institute of Experimental Medicine of the Czech Academy of Sciences , Prague , Czech Republic.,Department of Cell Biology, Faculty of Science, Charles University , Prague , Czech Republic
| | - Kristyna Vrbova
- Department of Genetic Toxicology and Nanotoxicology, Institute of Experimental Medicine of the Czech Academy of Sciences , Prague , Czech Republic
| | - Zbynek Vecera
- Department of Environmental Analytical Chemistry, Institute of Analytic Chemistry of the Czech Academy of Sciences , Brno , Czech Republic
| | - Pavel Mikuska
- Department of Environmental Analytical Chemistry, Institute of Analytic Chemistry of the Czech Academy of Sciences , Brno , Czech Republic
| | - Pavel Coufalik
- Department of Environmental Analytical Chemistry, Institute of Analytic Chemistry of the Czech Academy of Sciences , Brno , Czech Republic
| | - Pavel Kulich
- Department of Chemistry and Toxicology, Veterinary Research Institute , Brno , Czech Republic
| | - Radim Skoupy
- Department of Electron Microscopy, Institute of Scientific Instruments of the Czech Academy of Sciences , Brno , Czech Republic
| | - Miroslav Machala
- Department of Chemistry and Toxicology, Veterinary Research Institute , Brno , Czech Republic
| | - Alena Zajicova
- Department of Transplantation Immunology, Institute of Experimental Medicine of the Czech Academy of Sciences , Prague , Czech Republic
| | - Pavel Rossner
- Department of Genetic Toxicology and Nanotoxicology, Institute of Experimental Medicine of the Czech Academy of Sciences , Prague , Czech Republic
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26
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Bartheldyová E, Turánek Knotigová P, Zachová K, Mašek J, Kulich P, Effenberg R, Zyka D, Hubatka F, Kotouček J, Čelechovská H, Héžová R, Tomečková A, Mašková E, Fojtíková M, Macaulay S, Bystrický P, Paulovičová L, Paulovičová E, Drož L, Ledvina M, Raška M, Turánek J. N-Oxy lipid-based click chemistry for orthogonal coupling of mannan onto nanoliposomes prepared by microfluidic mixing: Synthesis of lipids, characterisation of mannan-coated nanoliposomes and in vitro stimulation of dendritic cells. Carbohydr Polym 2018; 207:521-532. [PMID: 30600036 DOI: 10.1016/j.carbpol.2018.10.121] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/18/2018] [Accepted: 10/25/2018] [Indexed: 11/26/2022]
Abstract
New synthetic aminooxy lipid was designed and synthesized as a building block for the formulation of functionalised nanoliposomes (presenting onto the outer surface of aminooxy groups) by microfluidic mixing. Orthogonal binding of cellular mannan (Candida glabrata (CCY 26-20-1) onto the outer surface of functionalised nanoliposomes was modified by orthogonal binding of reducing termini of mannans to oxime lipids via a click chemistry reaction based on aminooxy coupling (oxime ligation). The aminooxy lipid was proved as a suitable active component for preparation of functionalised nanoliposomes by the microfluidic mixing method performed with the instrument NanoAssemblr™. This "on-chip technology" can be easily scaled-up. The structure of mannan-liposomes was visualized by transmission and scanning electron microscopy, including immunogold staining of recombinant mannan receptor bound onto mannosylated-liposomes. The observed structures are in a good correlation with data obtained by DLS, NTA, and TPRS methods. In vitro experiments on human and mouse dendritic cells demonstrate selective internalisation of fluorochrome-labelled mannan-liposomes and their ability to stimulate DC comparable to lipopolysaccharide. We describe a potentially new drug delivery platform for mannan receptor-targeted antimicrobial drugs as well as for immunotherapeutics. Furthermore, the platform based on mannans bound orthogonally onto the surface of nanoliposomes represents a self-adjuvanted carrier for construction of liposome-based recombinant vaccines for both systemic and mucosal routes of administration.
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Affiliation(s)
- Eliška Bartheldyová
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic
| | - Pavlína Turánek Knotigová
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic
| | - Kateřina Zachová
- Department of Immunology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hněvotínská 3, 775 15 Olomouc, Czech Republic
| | - Josef Mašek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic
| | - Pavel Kulich
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic
| | - Roman Effenberg
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology, Technická 5, 166, 28 Prague 6, Czech Republic
| | - Daniel Zyka
- APIGENEX s.r.o., Poděbradská 173/5, Prague 9, 190 00, Czech Republic
| | - František Hubatka
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic
| | - Jan Kotouček
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic
| | - Hana Čelechovská
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic
| | - Renata Héžová
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic
| | - Andrea Tomečková
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic
| | - Eliška Mašková
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic
| | - Martina Fojtíková
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic
| | | | - Peter Bystrický
- Division of Neurosciences, Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University, Malá Hora 10701/4A, 036 01 Martin, Slovakia
| | - Lucia Paulovičová
- Department of Immunochemistry of Glycoconjugates, Immunology & Cell Culture Laboratory, Institute of Chemistry, Center for Glycomics Slovak Academy of Sciences, Dubravska cesta 9, 845 38 Bratislava, Slovakia
| | - Ema Paulovičová
- Department of Immunochemistry of Glycoconjugates, Immunology & Cell Culture Laboratory, Institute of Chemistry, Center for Glycomics Slovak Academy of Sciences, Dubravska cesta 9, 845 38 Bratislava, Slovakia.
| | - Ladislav Drož
- APIGENEX s.r.o., Poděbradská 173/5, Prague 9, 190 00, Czech Republic
| | - Miroslav Ledvina
- Department of Chemistry of Natural Compounds, University of Chemistry and Technology, Technická 5, 166, 28 Prague 6, Czech Republic.
| | - Milan Raška
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic; Department of Immunology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hněvotínská 3, 775 15 Olomouc, Czech Republic.
| | - Jaroslav Turánek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic.
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27
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Vysloužil J, Vetchý D, Zeman J, Farsa O, Franc A, Gajdziok J, Vysloužil J, Ficeriová K, Kulich P, Kobliha Z, Pitschmann V. Pellet patented technology for fast and distinct visual detection of cholinesterase inhibitors in liquids. J Pharm Biomed Anal 2018; 161:206-213. [DOI: 10.1016/j.jpba.2018.08.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 08/13/2018] [Accepted: 08/24/2018] [Indexed: 01/14/2023]
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28
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Svadlakova T, Malkova A, Kulich P, Masek J, Hubatka F, Knotigova PT, Fiala Z, Borska L, Turanek J. Potential cytotoxic risk and chronical inflammation after exposure to graphene platelets. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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29
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Bartheldyová E, Effenberg R, Mašek J, Procházka L, Knötigová PT, Kulich P, Hubatka F, Velínská K, Zelníčková J, Zouharová D, Fojtíková M, Hrebík D, Plevka P, Mikulík R, Miller AD, Macaulay S, Zyka D, Drož L, Raška M, Ledvina M, Turánek J. Hyaluronic Acid Surface Modified Liposomes Prepared via Orthogonal Aminoxy Coupling: Synthesis of Nontoxic Aminoxylipids Based on Symmetrically α-Branched Fatty Acids, Preparation of Liposomes by Microfluidic Mixing, and Targeting to Cancer Cells Expressing CD44. Bioconjug Chem 2018; 29:2343-2356. [PMID: 29898364 DOI: 10.1021/acs.bioconjchem.8b00311] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
New synthetic aminoxy lipids are designed and synthesized as building blocks for the formulation of functionalized nanoliposomes by microfluidization using a NanoAssemblr. Orthogonal binding of hyaluronic acid onto the outer surface of functionalized nanoliposomes via aminoxy coupling ( N-oxy ligation) is achieved at hemiacetal function of hyaluronic acid and the structure of hyaluronic acid-liposomes is visualized by transmission electron microscopy and cryotransmission electron microscopy. Observed structures are in a good correlation with data obtained by dynamic light scattering (size and ζ-potential). In vitro experiments on cell lines expressing CD44 receptors demonstrate selective internalization of fluorochrome-labeled hyaluronic acid-liposomes, while cells with down regulated CD44 receptor levels exhibit very low internalization of hyaluronic acid-liposomes. A method based on microfluidization mixing was developed for preparation of monodispersive unilamellar liposomes containing aminoxy lipids and orthogonal binding of hyaluronic acid onto the liposomal surface was demonstrated. These hyaluronic acid-liposomes represent a potentially new drug delivery platform for CD44-targeted anticancer drugs as well as for immunotherapeutics and vaccines.
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Affiliation(s)
- Eliška Bartheldyová
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic
| | - Roman Effenberg
- Department of Chemistry of Natural Compounds , University of Chemistry and Technology , Technická 5 , 166 28 Prague 6, Czech Republic
| | - Josef Mašek
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic
| | - Lubomír Procházka
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic
| | - Pavlína Turánek Knötigová
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic
| | - Pavel Kulich
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic
| | - František Hubatka
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic
| | - Kamila Velínská
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic
| | - Jaroslava Zelníčková
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic
| | - Darina Zouharová
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic
| | - Martina Fojtíková
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic
| | - Dominik Hrebík
- Central European Institute of Technology CEITEC, Structural Virology , Masaryk University , Kamenice 753/5 , 62500 Brno , Czech Republic
| | - Pavel Plevka
- Central European Institute of Technology CEITEC, Structural Virology , Masaryk University , Kamenice 753/5 , 62500 Brno , Czech Republic
| | - Robert Mikulík
- The International Clinical Research Center of St. Anne's University Hospital Brno , 656 91 Brno , Czech Republic
| | - Andrew D Miller
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic
| | - Stuart Macaulay
- Malvern Instruments , Great Malvern WR14 1XZ , United Kingdom
| | - Daniel Zyka
- APIGENEX s.r.o. , Poděbradská 173/5 , Prague 9 , 190 00 , Czech Republic
| | - Ladislav Drož
- APIGENEX s.r.o. , Poděbradská 173/5 , Prague 9 , 190 00 , Czech Republic
| | - Milan Raška
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic.,Department of Immunology and Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry , Palacky University Olomouc , Hněvotínská 3 , 775 15 Olomouc , Czech Republic
| | - Miroslav Ledvina
- Department of Chemistry of Natural Compounds , University of Chemistry and Technology , Technická 5 , 166 28 Prague 6, Czech Republic
| | - Jaroslav Turánek
- Department of Pharmacology and Immunotherapy , Veterinary Research Institute, v.v.i. , Hudcova 70 , 621 00 Brno , Czech Republic
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30
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Široký P, Frye FL, Dvořáková N, Hostovský M, Prokop H, Kulich P. Herpesvirus associated dermal papillomatosis in Williams' mud turtle Pelusios williamsi with effects of autogenous vaccine therapy. J Vet Med Sci 2018; 80:1248-1254. [PMID: 29887582 PMCID: PMC6115266 DOI: 10.1292/jvms.18-0126] [Citation(s) in RCA: 5] [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] [Indexed: 11/22/2022] Open
Abstract
An adult female of Williams’ mud turtle, Pelusios williamsi long-term
captive, that was allegedly caught wild in Kenya was found to have developed
papilloma-like skin lesions. Excised tumors were examined histologically after routine
processing with hematoxylin and eosin (H & E) stained slides, examined for the
presence of viral particles by electron microscopy employing negative staining, and
examined for the presence of viral DNA by PCR. Microscopic features in pre-treatment
biopsies were fully diagnostic and consistent with multifocal squamous cell papilloma.
Viral-type inclusion bodies were not identified. Turtle was found to be infected by
reptilian herpesvirus. Association with herpesvirus and vast multiplicity of tumors
thwarted surgical solution. An autogenous vaccine was prepared using 5 g of excised fresh
tissue, aseptically ground, treated with diluted formalin, centrifuged to obtain a
supernatant, and subsequently exposed to UV light. Autogenous vaccine induced substantial
areas of necrosis of the papillomatous lesions noted by the loss of cytological
architecture, nuclear loss, and by edema. The outer edges of the healing biopsies appeared
to be regenerating. Therefore, our vaccine application could be considered as effective.
It is difficult to treat and eliminate herpesvirus infection because of its cryptic
presence and sudden onset of disease. Successful application of autogenous vaccine could
be a potentially promising strategy, which deserves further testing.
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Affiliation(s)
- Pavel Široký
- Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého 1946/1, 612 42 Brno, Czech Republic
| | - Fredric L Frye
- La Primavera Organic Farm, 33422 Highway 128, Cloverdale, California 95425-9428 U.S.A
| | - Nela Dvořáková
- Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého 1946/1, 612 42 Brno, Czech Republic.,Institute for State Control of Veterinary Biologicals and Medicines, Hudcova 56a, 621 00 Brno, Czech Republic
| | - Martin Hostovský
- Department of Animal Protection, Welfare and Behaviour, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého 1946/1, 612 42 Brno, Czech Republic
| | - Hynek Prokop
- U Zámečku, 459, 530 03 Pardubice, Czech Republic
| | - Pavel Kulich
- Veterinary Research Institute, v.v.i., Hudcova 70, 621 00 Brno, Czech Republic
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31
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Naiserová M, Kubová K, Vysloužil J, Pavloková S, Vetchý D, Urbanová M, Brus J, Vysloužil J, Kulich P. Investigation of Dissolution Behavior HPMC/Eudragit ®/Magnesium Aluminometasilicate Oral Matrices Based on NMR Solid-State Spectroscopy and Dynamic Characteristics of Gel Layer. AAPS PharmSciTech 2018; 19:681-692. [PMID: 28971441 DOI: 10.1208/s12249-017-0870-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 08/24/2017] [Indexed: 12/11/2022] Open
Abstract
Burst drug release is often considered a negative phenomenon resulting in unexpected toxicity or tissue irritation. Optimal release of a highly soluble active pharmaceutical ingredient (API) from hypromellose (HPMC) matrices is technologically impossible; therefore, a combination of polymers is required for burst effect reduction. Promising variant could be seen in combination of HPMC and insoluble Eudragits® as water dispersions. These can be applied only on API/insoluble filler mixture as over-wetting prevention. The main hurdle is a limited water absorption capacity (WAC) of filler. Therefore, the object of this study was to investigate the dissolution behavior of levetiracetam from HPMC/Eudragit®NE matrices using magnesium aluminometasilicate (Neusilin® US2) as filler with excellent WAC. Part of this study was also to assess influence of thermal treatment on quality parameters of matrices. The use of Neusilin® allowed the application of Eudragit® dispersion to API/Neusilin® mixture in one step during high-shear wet granulation. HPMC was added extragranularly. Obtained matrices were investigated for qualitative characteristics, NMR solid-state spectroscopy (ssNMR), gel layer dynamic parameters, SEM, and principal component analysis (PCA). Decrease in burst effect (max. of 33.6%) and dissolution rate, increase in fitting to zero-order kinetics, and paradoxical reduction in gel layer thickness were observed with rising Eudragit® NE concentration. The explanation was done by ssNMR, which clearly showed a significant reduction of the API particle size (150-500 nm) in granules as effect of surfactant present in dispersion in dependence on Eudragit®NE amount. This change in API particle size resulted in a significantly larger interface between these two entities. Based on ANOVA and PCA, thermal treatment was not revealed as a useful procedure for this system.
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32
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Brus J, Urbanova M, Czernek J, Pavelkova M, Kubova K, Vyslouzil J, Abbrent S, Konefal R, Horský J, Vetchy D, Vysloužil J, Kulich P. Structure and Dynamics of Alginate Gels Cross-Linked by Polyvalent Ions Probed via Solid State NMR Spectroscopy. Biomacromolecules 2017. [PMID: 28636347 DOI: 10.1021/acs.biomac.7b00627] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Alginate gels are an outstanding biomaterial widely applicable in tissue engineering, medicine, and pharmacy for cell transplantation, wound healing and efficient bioactive agent delivery, respectively. This contribution provides new and comprehensive insight into the atomic-resolution structure and dynamics of polyvalent ion-cross-linked alginate gels in microbead formulations. By applying various advanced solid-state NMR (ssNMR) spectroscopy techniques, we verified the homogeneous distribution of the cross-linking ions in the alginate gels and the high degree of ion exchange. We also established that the two-component character of the alginate gels arises from the concentration fluctuations of residual water molecules that are preferentially localized along polymer chains containing abundant mannuronic acid (M) residues. These hydrated M-rich blocks tend to self-aggregate into subnanometer domains. The resulting coexistence of two types of alginate chains differing in segmental dynamics was revealed by 1H-13C dipolar profile analysis, which indicated that the average fluctuation angles of the stiff and mobile alginate segments were about 5-9° or 30°, respectively. Next, the 13C CP/MAS NMR spectra indicated that the alginate polymer microstructure was strongly dependent on the type of cross-linking ion. The polymer chain regularity was determined to systematically decrease as the cross-linking ion radius decreased. Consistent with the 1H-1H correlation spectra, regular structures were found for the gels cross-linked by relatively large alkaline earth cations (Ba2+, Sr2+, or Ca2+), whereas the alginate chains cross-linked by bivalent transition metal ions (Zn2+) and trivalent metal cations (Al3+) exhibited significant irregularities. Notably, however, the observed disordering of the alginate chains was exclusively attributed to the M residues, whereas the structurally well-defined gels all contained guluronic acid (G) residues. Therefore, a key role of the units in M-rich blocks as mediators promoting the self-assembly of alginate chains was experimentally confirmed. Finally, combining 2D 27Al 3Q/MAS NMR spectroscopy with density functional theory (DFT) calculations provided previously unreported insight into the structure of the Al3+ cross-linking centers. Notably, even with a low residual amount of water, these cross-linking units adopt exclusively 6-fold octahedral coordination and exhibit significant motion, which considerably reduces quadrupolar coupling constants. Thus, the experimental strategy presented in this study provides a new perspective on cross-linked alginate structure and dynamics for which high-quality diffraction data at the atomic resolution level are inherently unavailable.
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Affiliation(s)
- Jiri Brus
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
| | - Martina Urbanova
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
| | - Jiri Czernek
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
| | - Miroslava Pavelkova
- University of Veterinary and Pharmaceutical Sciences , Faculty of Pharmacy, Department of Pharmaceutics, Palackeho tr. 1946/1, 612 42 Brno, Czech Republic
| | - Katerina Kubova
- University of Veterinary and Pharmaceutical Sciences , Faculty of Pharmacy, Department of Pharmaceutics, Palackeho tr. 1946/1, 612 42 Brno, Czech Republic
| | - Jakub Vyslouzil
- University of Veterinary and Pharmaceutical Sciences , Faculty of Pharmacy, Department of Pharmaceutics, Palackeho tr. 1946/1, 612 42 Brno, Czech Republic
| | - Sabina Abbrent
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
| | - Rafal Konefal
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
| | - Jiri Horský
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic , Heyrovsky sq. 2, 162 06 Prague 6, Czech Republic
| | - David Vetchy
- University of Veterinary and Pharmaceutical Sciences , Faculty of Pharmacy, Department of Pharmaceutics, Palackeho tr. 1946/1, 612 42 Brno, Czech Republic
| | - Jan Vysloužil
- Department of Biochemistry, Faculty of Science, Masaryk University , Kotlářská 267/2, 611 37, Brno, Czech Republic
| | - Pavel Kulich
- Department of Chemistry and Toxicology, Veterinary Research Institute , Hudcova 296/70, 621 00, Brno, Czech Republic
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Makovcova J, Babak V, Kulich P, Masek J, Slany M, Cincarova L. Dynamics of mono- and dual-species biofilm formation and interactions between Staphylococcus aureus and Gram-negative bacteria. Microb Biotechnol 2017; 10:819-832. [PMID: 28401747 PMCID: PMC5481519 DOI: 10.1111/1751-7915.12705] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 02/17/2017] [Accepted: 02/20/2017] [Indexed: 01/20/2023] Open
Abstract
Microorganisms are not commonly found in the planktonic state but predominantly form dual- and multispecies biofilms in almost all natural environments. Bacteria in multispecies biofilms cooperate, compete or have neutral interactions according to the involved species. Here, the development of mono- and dual-species biofilms formed by Staphylococcus aureus and other foodborne pathogens such as Salmonella enterica subsp. enterica serovar Enteritidis, potentially pathogenic Raoultella planticola and non-pathogenic Escherichia coli over the course of 24, 48 and 72 h was studied. Biofilm formation was evaluated by the crystal violet assay (CV), enumeration of colony-forming units (CFU cm-2 ) and visualization using confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM). In general, Gram-negative bacterial species and S. aureus interacted in a competitive manner. The tested Gram-negative bacteria grew better in mixed dual-species biofilms than in their mono-species biofilms as determined using the CV assay, CFU ml-2 enumeration, and CLSM and SEM visualization. In contrast, the growth of S. aureus biofilms was reduced when cultured in dual-species biofilms. CLSM images revealed grape-like clusters of S. aureus and monolayers of Gram-negative bacteria in both mono- and dual-species biofilms. S. aureus clusters in dual-species biofilms were significantly smaller than clusters in S. aureus mono-species biofilms.
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Affiliation(s)
- Jitka Makovcova
- Department of Food and Feed Safety, Veterinary Research Institute, Brno, Czech Republic
| | - Vladimir Babak
- Department of Food and Feed Safety, Veterinary Research Institute, Brno, Czech Republic
| | - Pavel Kulich
- Department of Chemistry and Toxicology, Veterinary Research Institute, Brno, Czech Republic
| | - Josef Masek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | - Michal Slany
- Department of Food and Feed Safety, Veterinary Research Institute, Brno, Czech Republic
| | - Lenka Cincarova
- Department of Food and Feed Safety, Veterinary Research Institute, Brno, Czech Republic
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Pavelková M, Kubová K, Vysloužil J, Kejdušová M, Vetchý D, Celer V, Molinková D, Lobová D, Pechová A, Vysloužil J, Kulich P. Biological Effects of Drug-Free Alginate Beads Cross-Linked by Copper Ions Prepared Using External Ionotropic Gelation. AAPS PharmSciTech 2017; 18:1343-1354. [PMID: 27502404 DOI: 10.1208/s12249-016-0601-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 07/22/2016] [Indexed: 11/30/2022] Open
Abstract
External ionotropic gelation offers a unique possibility to entrap multivalent ions in a polymer structure. The aim of this experimental study was to prepare new drug-free sodium alginate (ALG) particles cross-linked by Cu2+ ions and to investigate their technological parameters (particle size, sphericity, surface topology, swelling capacity, copper content, release of Cu2+ ions, mucoadhesivity) and biological activity (cytotoxicity and efficiency against the most common vaginal pathogens-Herpes simplex, Escherichia coli, Candida albicans) with respect to potential vaginal administration. Beads prepared from NaALG dispersions (3 or 4%) were cross-linked by Cu2+ ions (0.5 or 1.0 M CuCl2) using external ionotropic gelation. Prepared mucoadhesive beads with particle size over 1000 μm exhibited sufficient sphericity (all ˃0.89) and copper content (214.8-249.07 g/kg), which increased with concentration of polymer and hardening solution. Dissolution behaviour was characterized by extended burst effect, followed by 2 h of copper release. The efficiency of all samples against the most common vaginal pathogens was observed at cytotoxic Cu2+ concentrations. Anti-HSV activity was demonstrated at a Cu2+ concentration of 546 mg/L. Antibacterial activity of beads (expressed as minimum inhibition concentration, MIC) was influenced mainly by the rate of Cu2+ release which was controlled by the extent of swelling capacity. Lower MIC values were found for E. coli in comparison with C. albicans. Sample ALG-3_1.0 exhibited the fastest copper release and was proved to be the most effective against both bacteria. This could be a result of its lower polymer concentration in combination with smaller particle size and thus larger surface area.
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Mašek J, Lubasová D, Lukáč R, Turánek-Knotigová P, Kulich P, Plocková J, Mašková E, Procházka L, Koudelka Š, Sasithorn N, Gombos J, Bartheldyová E, Hubatka F, Raška M, Miller AD, Turánek J. Multi-layered nanofibrous mucoadhesive films for buccal and sublingual administration of drug-delivery and vaccination nanoparticles - important step towards effective mucosal vaccines. J Control Release 2017; 249:183-195. [DOI: 10.1016/j.jconrel.2016.07.036] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 07/22/2016] [Accepted: 07/23/2016] [Indexed: 12/12/2022]
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Mikel P, Vasickova P, Tesarik R, Malenovska H, Kulich P, Vesely T, Kralik P. Preparation of MS2 Phage-Like Particles and Their Use As Potential Process Control Viruses for Detection and Quantification of Enteric RNA Viruses in Different Matrices. Front Microbiol 2016; 7:1911. [PMID: 28133456 PMCID: PMC5234545 DOI: 10.3389/fmicb.2016.01911] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [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: 07/13/2016] [Accepted: 11/15/2016] [Indexed: 01/26/2023] Open
Abstract
The detection and quantification of enteric RNA viruses is based on isolation of viral RNA from the sample followed by quantitative reverse transcription polymerase chain reaction (RT-qPCR). To control the whole process of analysis and in order to guarantee the validity and reliability of results, process control viruses (PCV) are used. The present article describes the process of preparation and use of such PCV– MS2 phage-like particles (MS2 PLP) – in RT-qPCR detection and quantification of enteric RNA viruses. The MS2 PLP were derived from bacteriophage MS2 carrying a unique and specific de novo-constructed RNA target sequence originating from the DNA of two extinct species. The amount of prepared MS2 particles was quantified using four independent methods – UV spectrophotometry, fluorimetry, transmission electron microscopy and a specifically developed duplex RT-qPCR. To evaluate the usefulness of MS2 PLP in routine diagnostics different matrices known to harbor enteric RNA viruses (swab samples, liver tissue, serum, feces, and vegetables) were artificially contaminated with specific amounts of MS2 PLP. The extraction efficiencies were calculated for each individual matrix. The prepared particles fulfill all requirements for PCV – they are very stable, non-infectious, and are genetically distinct from the target RNA viruses. Due to these properties they represent a good morphological and physiochemical model. The use of MS2 PLP as a PCV in detection and quantification of enteric RNA viruses was evaluated in different types of matrices.
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Affiliation(s)
- Pavel Mikel
- Veterinary Research Institute, Department of Food and Feed SafetyBrno, Czechia; Department of Experimental Biology, Faculty of Science, Masaryk UniversityBrno, Czechia
| | - Petra Vasickova
- Veterinary Research Institute, Department of Food and Feed Safety Brno, Czechia
| | - Radek Tesarik
- Veterinary Research Institute, Department of Food and Feed Safety Brno, Czechia
| | - Hana Malenovska
- Veterinary Research Institute, Department of Food and Feed Safety Brno, Czechia
| | - Pavel Kulich
- Veterinary Research Institute, Department of Food and Feed Safety Brno, Czechia
| | - Tomas Vesely
- Veterinary Research Institute, Department of Food and Feed Safety Brno, Czechia
| | - Petr Kralik
- Veterinary Research Institute, Department of Food and Feed Safety Brno, Czechia
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Heger Z, Polanska H, Merlos Rodrigo MA, Guran R, Kulich P, Kopel P, Masarik M, Eckschlager T, Stiborova M, Kizek R, Adam V. Prostate tumor attenuation in the nu/nu murine model due to anti-sarcosine antibodies in folate-targeted liposomes. Sci Rep 2016; 6:33379. [PMID: 27646588 PMCID: PMC5028781 DOI: 10.1038/srep33379] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [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: 04/11/2016] [Accepted: 08/25/2016] [Indexed: 12/18/2022] Open
Abstract
Herein, we describe the preparation of liposomes with folate-targeting properties for the encapsulation of anti-sarcosine antibodies (antisarAbs@LIP) and sarcosine (sar@LIP). The competitive inhibitory effects of exogenously added folic acid supported the role of folate targeting in liposome internalization. We examined the effects of repeated administration on mice PC-3 xenografts. Sar@LIP treatment significantly increased tumor volume and weight compared to controls treated with empty liposomes. Moreover, antisarAbs@LIP administration exhibited a mild antitumor effect. We also identified differences in gene expression patterns post-treatment. Furthermore, Sar@LIP treatment resulted in decreased amounts of tumor zinc ions and total metallothioneins. Examination of the spatial distribution across the tumor sections revealed a sarcosine-related decline of the MT1X isoform within the marginal regions but an elevation after antisarAbs@LIP administration. Our exploratory results demonstrate the importance of sarcosine as an oncometabolite in PCa. Moreover, we have shown that sarcosine can be a potential target for anticancer strategies in management of PCa.
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Affiliation(s)
- Zbynek Heger
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ 613 00 Brno, Czech Republic
| | - Hana Polanska
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic.,Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno CZ-625 00, Czech Republic
| | - Miguel Angel Merlos Rodrigo
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ 613 00 Brno, Czech Republic
| | - Roman Guran
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ 613 00 Brno, Czech Republic
| | - Pavel Kulich
- Department of Chemistry and Toxicology, Veterinary Research Institute, Hudcova 296/70, CZ 621 00 Brno, Czech Republic
| | - Pavel Kopel
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ 613 00 Brno, Czech Republic
| | - Michal Masarik
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic.,Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno CZ-625 00, Czech Republic
| | - Tomas Eckschlager
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University, and University Hospital Motol, V Uvalu 84, CZ-150 06 Prague 5, Czech Republic
| | - Marie Stiborova
- Department of Biochemistry, Faculty of Science, Charles University, Albertov 2030, CZ-128 40 Prague 2, Czech Republic
| | - Rene Kizek
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ 613 00 Brno, Czech Republic
| | - Vojtech Adam
- Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic.,Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ 613 00 Brno, Czech Republic
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Machala M, Kulich P, Serý O, Marvanová S, Skoupý R, Rusnák A, Mikuska P, Vecera Z. The deposition of inhaled titanium nanoparticles in mice organs. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Krupka M, Masek J, Barkocziova L, Turanek Knotigova P, Kulich P, Plockova J, Lukac R, Bartheldyova E, Koudelka S, Chaloupkova R, Sebela M, Zyka D, Droz L, Effenberg R, Ledvina M, Miller AD, Turanek J, Raska M. The Position of His-Tag in Recombinant OspC and Application of Various Adjuvants Affects the Intensity and Quality of Specific Antibody Response after Immunization of Experimental Mice. PLoS One 2016; 11:e0148497. [PMID: 26848589 PMCID: PMC4744052 DOI: 10.1371/journal.pone.0148497] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [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: 11/06/2015] [Accepted: 01/20/2016] [Indexed: 12/29/2022] Open
Abstract
Lyme disease, Borrelia burgdorferi-caused infection, if not recognized and appropriately treated by antibiotics, may lead to chronic complications, thus stressing the need for protective vaccine development. The immune protection is mediated by phagocytic cells and by Borrelia-specific complement-activating antibodies, associated with the Th1 immune response. Surface antigen OspC is involved in Borrelia spreading through the host body. Previously we reported that recombinant histidine tagged (His-tag) OspC (rOspC) could be attached onto liposome surfaces by metallochelation. Here we report that levels of OspC-specific antibodies vary substantially depending upon whether rOspC possesses an N' or C' terminal His-tag. This is the case in mice immunized: (a) with rOspC proteoliposomes containing adjuvants MPLA or non-pyrogenic MDP analogue MT06; (b) with free rOspC and Montanide PET GEL A; (c) with free rOspC and alum; or (d) with adjuvant-free rOspC. Stronger responses are noted with all N'-terminal His-tag rOspC formulations. OspC-specific Th1-type antibodies predominate post-immunization with rOspC proteoliposomes formulated with MPLA or MT06 adjuvants. Further analyses confirmed that the structural features of soluble N' and C' terminal His-tag rOspC and respective rOspC proteoliposomes are similar including their thermal stabilities at physiological temperatures. On the other hand, a change in the position of the rOspC His-tag from N' to C' terminal appears to affect substantially the immunogenicity of rOspC arguably due to steric hindrance of OspC epitopes by the C' terminal His-tag itself and not due to differences in overall conformations induced by changes in the His-tag position in rOspC variants.
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Affiliation(s)
- Michal Krupka
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
| | - Josef Masek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | - Lucia Barkocziova
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
| | | | - Pavel Kulich
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | - Jana Plockova
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | - Robert Lukac
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | - Eliska Bartheldyova
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
| | - Stepan Koudelka
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
- International Clinical Research Center, St. Anne´s University Hospital, Brno, Czech Republic
| | - Radka Chaloupkova
- International Clinical Research Center, St. Anne´s University Hospital, Brno, Czech Republic
- Loschmidt Laboratories, Department of Experimental Biology and Research Centre for Toxic Compounds in the Environment RECETOX, Masaryk University, Brno, Czech Republic
| | - Marek Sebela
- Centre of the Region Hana for Biotechnological and Agricultural Research, Faculty of Science, Palacky University Olomouc, Olomouc, Czech Republic
| | | | | | - Roman Effenberg
- Department of Chemistry of Natural Compounds University of Chemistry and Technology, Prague, Czech Republic
| | - Miroslav Ledvina
- Department of Chemistry of Natural Compounds University of Chemistry and Technology, Prague, Czech Republic
| | - Andrew D. Miller
- King's College London, Institute of Pharmaceutical Science, London, United Kingdom, and GlobalAcorn Ltd, London, United Kingdom
| | - Jaroslav Turanek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
- * E-mail: (MR); (JT)
| | - Milan Raska
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
- * E-mail: (MR); (JT)
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Zouharova D, Lipenska I, Fojtikova M, Kulich P, Neca J, Slany M, Kovarcik K, Turanek-Knotigova P, Hubatka F, Celechovska H, Masek J, Koudelka S, Prochazka L, Eyer L, Plockova J, Bartheldyova E, Miller AD, Ruzek D, Raska M, Janeba Z, Turanek J. Antiviral activities of 2,6-diaminopurine-based acyclic nucleoside phosphonates against herpesviruses: In vitro study results with pseudorabies virus (PrV, SuHV-1). Vet Microbiol 2016; 184:84-93. [PMID: 26854349 DOI: 10.1016/j.vetmic.2016.01.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 12/01/2015] [Revised: 01/13/2016] [Accepted: 01/14/2016] [Indexed: 12/22/2022]
Abstract
Pseudorabies virus (PrV), a causative agent of Aujeszky's disease, is deadly to most mammals with the exception of higher primates and men. This disease causes serious economic loses among farm animals, especially pigs, yet many European countries are today claimed to be Aujeszky's disease free because of the discovery of an efficient vaccination for pigs. In reality, the virus is still present in wild boar. Current vaccines are neither suitable for dogs nor are there anti-PrV drugs approved for veterinary use. Therefore, the disease still represents a high threat, particularly for expensive hunting dogs that can come into close contact with infected boars. Here we report on the anti-PrV activities of a series of synthetic diaminopurine-based acyclic nucleoside phosphonate (DAP-ANP) analogues. Initially, all synthetic DAP-ANPs under investigation are shown to exhibit minimal cytotoxicity by MTT and XTT tests (1-100μM range). Thereafter in vitro infection models are established using PrV virus SuHV-1, optimized on PK-15 and RK-13 cell lines. Out of the six DAP-ANP analogues tested, analogue VI functionalized with a cyclopropyl group on the 6-amino position of the purine ring proves the most effective antiviral DAP-ANP analogue against PrV infection, aided by sufficient hydrophobic character to enhance bioavailability to its cellular target viral DNA-polymerase. Four other DAP-ANP analogues with functional groups introduced to the C2'position are shown ineffective against PrV infection, even with favourable hydrophobic properties. Cidofovir(®), a drug approved against various herpesvirus infections, is found to exert only low activity against PrV in these same in vitro models.
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Affiliation(s)
- Darina Zouharova
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Ivana Lipenska
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Martina Fojtikova
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Pavel Kulich
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Jiri Neca
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Michal Slany
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Kamil Kovarcik
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | | | - Frantisek Hubatka
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Hana Celechovska
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Josef Masek
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Stepan Koudelka
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic; International Clinical Research Center, St. Annés University Hospital, Brno, Czech Republic
| | - Lubomir Prochazka
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Ludek Eyer
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Jana Plockova
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Eliska Bartheldyova
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic
| | - Andrew D Miller
- King's College London, Institute of Pharmaceutical Science, London, United Kingdom, and GlobalAcorn Ltd., London, United Kingdom
| | - Daniel Ruzek
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic; Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, and Faculty of Science, University of South Bohemia, Ceske Budejovice, Czech Republic
| | - Milan Raska
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic; Palacky University of Olomouc, Faculty of Medicine, Department of Immunology, Czech Republic
| | - Zlatko Janeba
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Prague, Czech Republic
| | - Jaroslav Turanek
- Veterinary Research Institute, Department of Pharmacology and Immunotherapy, Brno, Czech Republic.
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Machala M, Kulich P, Serý O, Docekal B, Vecera Z, Zeman T, Misek I. The deposition of inhaled manganese nanoparticles in mice organs. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Knotigová PT, Zyka D, Mašek J, Kovalová A, Křupka M, Bartheldyová E, Kulich P, Koudelka Š, Lukáč R, Kauerová Z, Vacek A, Horynová MS, Kozubík A, Miller AD, Fekete L, Kratochvílová I, Ježek J, Ledvina M, Raška M, Turánek J. Molecular Adjuvants Based on Nonpyrogenic Lipophilic Derivatives of norAbuMDP/GMDP Formulated in Nanoliposomes: Stimulation of Innate and Adaptive Immunity. Pharm Res 2015; 32:1186-99. [DOI: 10.1007/s11095-014-1516-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 09/11/2014] [Indexed: 11/28/2022]
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43
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Bandouchova H, Bartonicka T, Berkova H, Brichta J, Cerny J, Kovacova V, Kolarik M, Köllner B, Kulich P, Martínková N, Rehak Z, Turner GG, Zukal J, Pikula J. Pseudogymnoascus destructans: evidence of virulent skin invasion for bats under natural conditions, Europe. Transbound Emerg Dis 2014; 62:1-5. [PMID: 25268034 DOI: 10.1111/tbed.12282] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [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: 03/30/2014] [Indexed: 02/06/2023]
Abstract
While Pseudogymnoascus destructans has been responsible for mass bat mortalities from white-nose syndrome (WNS) in North America, its virulence in Europe has been questioned. To shed the light on the issue of host-pathogen interaction between European bats and P. destructans, we examined seventeen bats emerging from the fungus-positive underground hibernacula in the Czech Republic during early spring 2013. Dual wing-membrane biopsies were taken from Barbastella barbastellus (1), Myotis daubentonii (1), Myotis emarginatus (1), Myotis myotis (11), Myotis nattereri (1) and Plecotus auritus (2) for standard histopathology and transmission electron microscopy. Non-lethal collection of suspected WNS lesions was guided by trans-illumination of the wing membranes with ultraviolet light. All bats selected for the present study were PCR-positive for P. destructans and showed microscopic findings consistent with the histopathological criteria for WNS diagnosis. Ultramicroscopy revealed oedema of the connective tissue and derangement of the fibroblasts and elastic fibres associated with skin invasion by P. destructans. Extensive fungal infection induced a marked inflammatory infiltration by neutrophils at the interface between the damaged part of the wing membrane replaced by the fungus and membrane tissue not yet invaded by the pathogen. There was no sign of keratinolytic activity in the stratum corneum. Here, we show that lesions pathognomonic for WNS are common in European bats and may also include overwhelming full-thickness fungal growth through the wing membrane equal in severity to reports from North America. Inter-continental differences in the outcome of WNS in bats in terms of morbidity/mortality may therefore not be due to differences in the pathogen itself.
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Affiliation(s)
- H Bandouchova
- Department of Ecology and Diseases of Game, Fish and Bees, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
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Daněk T, Kalous L, Vesel T, Krásová E, Reschová S, Rylková K, Kulich P, L MP, Pokorová D, Knytl M. Massive mortality of Prussian carp Carassius gibelio in the upper Elbe basin associated with herpesviral hematopoietic necrosis (CyHV-2). Dis Aquat Organ 2012; 102:87-95. [PMID: 23269383 DOI: 10.3354/dao02535] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
From 22 May to 10 June 2011 massive mortality of Prussian carp Carassius gibelio was observed in alluvial Lake Řehacˇka close to the Elbe River in the Czech Republic. More than 1400 kg of dead fish were collected and no other fish species were affected. Further molecular and cytogenetic investigation of fish (n = 232) revealed that the Rˇehacˇka population of Prussian carp consisted exclusively of gynogenetic triploid females. The causative agent was identified by means of molecular and electron microscopy as a herpesviral hematopoietic necrosis virus (Cyprinid herpesvirus 2, CyHV-2). This is the first report of CyHV-2 from the Czech Republic and the second finding worldwide of CyHV-2 causing mass mortality of C. gibelio. Some other localities in the upper Elbe River basin where C. gibelio was affected are also noted. We assume that the massive wave of deaths of all female gynogenetic Prussian carp can be attributed to limited genetic variation and the favourable conditions for development of viral disease.
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Affiliation(s)
- Tomá Daněk
- Department of Zoology and Fisheries, Food and Natural Resources, Czech University of Life Sciences Prague, Czech Republic
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Zajacova ZS, Faldyna M, Kulich P, Kummer V, Maskova J, Alexa P. Experimental infection of gnotobiotic piglets with Escherichia coli strains positive for EAST1 and AIDA. Vet Immunol Immunopathol 2012; 152:176-82. [PMID: 23068274 DOI: 10.1016/j.vetimm.2012.09.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The virulence factors EAST1 and AIDA are often detected in ETEC/VTEC strains isolated from pigs and their role in diarrhoeal infections is discussed. In order to elucidate the pathogenesis of AIDA, the colonisation patterns of F4 positive and AIDA positive strains were investigated. Two wild-type Escherichia coli strains AIDA/EAST1 and F4/EAST1 isolated from diarrhoeal piglets were used for animal experiment to evaluate the ability of the EAST1 toxin to be involved in induction of diarrhoea. Gnotobiotic piglets were supplemented with normal porcine serum and orally inoculated with the strains. Faecal bacterial shedding of the challenge strains was observed during the experiment. Light microscopy and scanning electron microscopy were used to detect the colonisation pattern of both challenge strains. Although bacterial isolation demonstrated shedding of the challenge strains until the end of the experiment, diarrhoea did not develop in any piglet. Based on histological examination, piglets were more heavily colonised in the case of infection with E. coli O149/F4/EAST1 strain. Scanning electron microscopy showed bacterial cells of F4/EAST1 E. coli adhering to enterocytes, in contrast to AIDA/EAST1 which were poorly present on the intestinal surface. The EAST1 toxin alone was not able to induce diarrhoea in animals. Therefore our results demonstrate that the function/role of EAST1 and AIDA in colibacillosis of pigs remains to be elucidated.
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Křupka M, Mašek J, Bartheldyová E, Turánek Knötigová P, Plocková J, Korvasová Z, Škrabalová M, Koudelka Š, Kulich P, Zachová K, Czerneková L, Strouhal O, Horynová M, Šebela M, Miller AD, Ledvina M, Raška M, Turánek J. Enhancement of immune response towards non-lipidized Borrelia burgdorferi recombinant OspC antigen by binding onto the surface of metallochelating nanoliposomes with entrapped lipophilic derivatives of norAbuMDP. J Control Release 2012; 160:374-81. [PMID: 22387453 DOI: 10.1016/j.jconrel.2012.02.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2011] [Revised: 02/17/2012] [Accepted: 02/18/2012] [Indexed: 10/28/2022]
Abstract
Lyme disease caused by spirochete Borrelia burgdorferi sensu lato, is a tick-born illness. If the infection is not eliminated by the host immune system and/or antibiotics, it may further disseminate and cause severe chronic complications. The immune response to Borrelia is mediated by phagocytic cells and by Borrelia-specific complement-activating antibodies associated with Th1 cell activation. A new experimental vaccine was constructed using non-lipidized form of recombinant B. burgdorferi s.s. OspC protein was anchored by metallochelating bond onto the surface of nanoliposomes containing novel nonpyrogenic lipophilized norAbuMDP analogues denoted MT05 and MT06. After i.d. immunization, the experimental vaccines surpassed Alum with respect to OspC-specific titers of IgG2a, IgG2b isotypes when MT06 was used and IgG3, IgM isotypes when MT05 was used. Both adjuvants exerted a high adjuvant effect comparable or better than MDP and proved themselves as nonpyrogenic.
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Affiliation(s)
- Michal Křupka
- Department of Immunology, Palacky University in Olomouc, Czech Republic
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Lukáč R, Kauerová Z, Mašek J, Bartheldyová E, Kulich P, Koudelka Š, Korvasová Z, Plocková J, Papoušek F, Kolář F, Schmidt R, Turánek J. Preparation of metallochelating microbubbles and study on their site-specific interaction with rGFP-HisTag as a model protein. Langmuir 2011; 27:4829-4837. [PMID: 21417344 DOI: 10.1021/la104677b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The histidine-metallochelating lipid complex is one of the smallest high affinity binding units used as tools for rapid noncovalent binding of histidine tagged molecules, especially recombinant proteins. The advantage of metallochelating complex over protein-ligand complexes (e.g., streptavidine-biotin, glutathiontransferase-glutathion) consists in its very low immunogenicity, if any. This concept for the construction of surface-modified metallochelating microbubbles was proved with recombinant green fluorescent protein (rGFP) containing 6His-tag. This protein is easy to be detected by various fluorescence techniques as flow cytometry and confocal microscopy. Microbubbles (MB) composed of DPPC with various contents of metallochelating lipid DOGS-NTA-Ni were prepared by intensive shaking of the liposome suspension under the atmosphere of sulfur hexafluoride. For this purpose, the instrument 3M ESPE CapMix was used. Various techniques (static light scattering, flow cytometry, and optical microscopy) were compared and used for the measurements of the size distribution of MB. All three methods demonstrated that the prepared MB were homogeneous in their size, and the mean diameter of the MB in various batches was within the range of 2.1-2.8 μm (the size range of 1-10 μm). The presence of large MB (8-10 μm) was marginal. Counting of MB revealed that the average amount of MB prepared of 10 mg of phospholipid equaled approximately 10(9) MB/mL. Lyophilized MB were prepared with saccharose as a cryoprotectant. These MB were shown to be stable both in vitro (the estimated half-live of the MB in bovine serum at 37 °C was 3-7 min) and in vivo (mouse). The stability of the MB was affected by molar content of DOGS-NTA-Ni. DPPC-based metallochelating MB provided a clear and very contrast image of the ventricular cavity soon after the injection. Site selective and stable binding of rGFP-HisTag (as a model of His-tagged protein) onto the surface of metallochelating MB was demonstrated by confocal microscopy.
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Affiliation(s)
- Róbert Lukáč
- Department of Pharmacology, Toxicology and Immunotherapy, Veterinary Research Institute, Brno, Czech Republic
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Vesely T, Cinkova K, Reschova S, Gobbo F, Ariel E, Vicenova M, Pokorova D, Kulich P, Bovo G. Investigation of ornamental fish entering the EU for the presence of ranaviruses. J Fish Dis 2011; 34:159-166. [PMID: 21241323 DOI: 10.1111/j.1365-2761.2010.01224.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A survey was performed on ornamental fish imported into the EU to detect viral agents belonging to the genus Ranavirus. The objective was to gain knowledge of the potential for these systemic iridoviruses to gain entry into the EU via international trade in ornamental fish. A total of 208 pooled samples, representing 753 individual fish, were tested. The samples included 13 orders and 37 families, originating from different countries and continents. Tissues from fish that died during or just after transport were collected and examined by standard virological techniques in epithelioma papulosum cyprini cells, by transmission electron microscopy and by PCR for the detection of the major capsid protein and DNA polymerase gene sequences of ranaviruses. Virus was isolated from nine fish species but ranavirus was not identified in those samples. The results suggest that ranaviruses are not highly prevalent in ornamental fish imported into the EU.
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Affiliation(s)
- T Vesely
- Veterinary Research Institute, Brno, Czech Republic.
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Mašek J, Bartheldyová E, Turánek-Knotigová P, Skrabalová M, Korvasová Z, Plocková J, Koudelka S, Skodová P, Kulich P, Křupka M, Zachová K, Czerneková L, Horynová M, Kratochvílová I, Miller AD, Zýka D, Michálek J, Vrbková J, Sebela M, Ledvina M, Raška M, Turánek J. Metallochelating liposomes with associated lipophilised norAbuMDP as biocompatible platform for construction of vaccines with recombinant His-tagged antigens: preparation, structural study and immune response towards rHsp90. J Control Release 2011; 151:193-201. [PMID: 21256901 DOI: 10.1016/j.jconrel.2011.01.016] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2010] [Revised: 01/06/2011] [Accepted: 01/17/2011] [Indexed: 10/18/2022]
Abstract
Hsp90-CA is present in cell wall of Candida pseudohyphae or hyphae-typical pathogenic morphotype for both systemic and mucosal Candida infections. Heat shock protein from Candida albicans (hsp90-CA) is an important target for protective antibodies during disseminated candidiasis of experimental mice and human. His-tagged protein rHsp90 was prepared and used as the antigen for preparation of experimental recombinant liposomal vaccine. Nickel-chelating liposomes (the size around 100nm, PDI≤0.1) were prepared from the mixture of egg phosphatidyl choline and nickel-chelating lipid DOGS-NTA-Ni (molar ratio 95:5%) by hydration of lipid film and extrusion methods. New non-pyrogenic hydrophobised derivative of MDP (C18-O-6-norAbuMDP) was incorporated into liposomes as adjuvans. rHsp90 was attached onto the surface of metallochelating liposomes by metallochelating bond and the structure of these proteoliposomes was studied by dynamic light scattering, AF microscopy, TEM and GPC. The liposomes with surface-exposed C18-O-6-norAbuMDP were well recognised and phagocyted by human dendritic cells in vitro. In vivo the immune response towards this experimental vaccine applied in mice (i.d.) demonstrated both TH1 and TH2 response comparable to FCA, but without any side effects. Metallochelating liposomes with lipophilic derivatives of muramyl dipeptide represent a new biocompatible platform for construction of experimental recombinant vaccines and drug-targeting systems.
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Affiliation(s)
- Josef Mašek
- Department of Toxicology, Pharmacology and Immunotherapy, Veterinary Research Institute, Hudcova 70, Brno, Czech Republic
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50
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Mašek J, Bartheldyová E, Korvasová Z, Škrabalová M, Koudelka Š, Kulich P, Kratochvílová I, Miller AD, Ledvina M, Raška M, Turánek J. Immobilization of histidine-tagged proteins on monodisperse metallochelation liposomes: Preparation and study of their structure. Anal Biochem 2011; 408:95-104. [DOI: 10.1016/j.ab.2010.08.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Revised: 08/02/2010] [Accepted: 08/16/2010] [Indexed: 12/22/2022]
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