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Slovakova M, Janovska S, Sleha R, Radochova V, Hatala A, Mannova N, Metelka R, Pudelka L, Bostik P. Nasal Immunization Using Chitosan Nanoparticles with Glycoprotein B of Murine Cytomegalovirus. J Microbiol Biotechnol 2024; 34:663-672. [PMID: 38303144 PMCID: PMC11016792 DOI: 10.4014/jmb.2308.08008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/06/2023] [Accepted: 12/14/2023] [Indexed: 02/03/2024]
Abstract
The use of nanoparticles as a delivery system for a specific antigen could solve many limitations of mucosal vaccine applications, such as low immunogenicity, or antigen protection and stabilization. In this study, we tested the ability of nasally administered chitosan nanoparticles loaded with glycoprotein B of murine cytomegalovirus to induce an immune response in an animal model. The choice of chitosan nanoparticle type was made by in vitro evaluation of sorption efficiency and antigen release. Three types of chitosan nanoparticles were prepared: crosslinked with tripolyphosphate, coated with hyaluronic acid, and in complex with polycaprolactone. The hydrodynamic size of the nanoparticles by dynamic light scattering, zeta potential, Fourier transform infrared spectroscopy, scanning electron microscopy, stability, loading efficiency, and release kinetics with ovalbumin were evaluated. Balb/c mice were immunized intranasally using the three-dose protocol with nanoparticles, gB, and adjuvants Poly(I:C) and CpG ODN. Subsequently, the humoral and cell-mediated antigen-specific immune response was determined. On the basis of the properties of the tested nanoparticles, the cross-linked nanoparticles were considered optimal for further investigation. The results show that nanoparticles with Poly(I:C) and with gB alone raised IgG antibody levels above the negative control. In the case of mucosal IgA, only gB alone weakly induced the production of IgA antibodies compared to saline-immunized mice. The number of activated cells increased slightly in mice immunized with nanoparticles and gB compared to those immunized with gB alone or to negative control. The results demonstrated that chitosan nanoparticles could have potential in the development of mucosal vaccines.
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Affiliation(s)
- Marcela Slovakova
- University of Defence, Faculty of Military Health Sciences, Hradec Kralove 50001, Czech Republic
- University of Pardubice, Faculty of Chemical Technology, Pardubice 53201, Czech Republic
| | - Sylva Janovska
- University of Defence, Faculty of Military Health Sciences, Hradec Kralove 50001, Czech Republic
| | - Radek Sleha
- University of Defence, Faculty of Military Health Sciences, Hradec Kralove 50001, Czech Republic
- Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove 50001, Czech Republic
| | - Vera Radochova
- University of Defence, Faculty of Military Health Sciences, Hradec Kralove 50001, Czech Republic
| | - Alexandra Hatala
- University of Pardubice, Faculty of Chemical Technology, Pardubice 53201, Czech Republic
| | - Nikola Mannova
- University of Pardubice, Faculty of Chemical Technology, Pardubice 53201, Czech Republic
| | - Radovan Metelka
- University of Pardubice, Faculty of Chemical Technology, Pardubice 53201, Czech Republic
| | - Ludovit Pudelka
- University of Defence, Faculty of Military Health Sciences, Hradec Kralove 50001, Czech Republic
| | - Pavel Bostik
- University of Defence, Faculty of Military Health Sciences, Hradec Kralove 50001, Czech Republic
- Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove 50001, Czech Republic
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Svobodova Z, Novotny J, Ospalkova B, Slovakova M, Bilkova Z, Foret F. Affiblot: a dot blot-based screening device for selection of reliable antibodies. Anal Methods 2021; 13:3874-3884. [PMID: 34528947 DOI: 10.1039/d1ay00955a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The key factor in the development of antibody-based assays is to find an antibody that has an appropriate affinity, high specificity, and low cross-reactivity. However, this task is not easy to carry out since the research antibodies on the market may suffer from low specificity and reproducibility. Here, we report on a palm-sized dot blot-based device, called the affiblot, that has a specially designed lid that allows simultaneous semi-quantitative comparison of up to five antibodies from different suppliers regarding their affinity/avidity, cross-reactivity, and batch-to-batch reliability. The only required peripheral equipment is a vacuum pump, a camera, and densitometry software. The affiblot device was tested for its functionality and its measurements were compared against those obtained by standard dot blot and ELISA. The benefit over these methods, when various antibodies are evaluated, is in its simplicity. It allows easy antigen deposition, fast application and the discarding of the solutions, a compact undivided membrane, and therefore significant decrease of labor. The device was tested with specific anti-ApoE, anti-EpCAM, anti-Salmonella, anti-E. coli, and anti-Listeria antibodies from different suppliers. Their properties were compared for their ability to interact specifically with antigen and/or non-target structures and the best-suited antibody for the intended application was identified.
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Affiliation(s)
- Zuzana Svobodova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, Pardubice, Czech Republic.
- Department of Biological and Medical Sciences, Faculty of Pharmacy in Hradec Kralove, Charles University, Zborovska 2089, Czech Republic
| | - Jakub Novotny
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, Pardubice, Czech Republic.
- Institute of Analytical Chemistry of the CAS, v. v. i., Veveri 967/97, Brno, Czech Republic
| | - Barbora Ospalkova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, Pardubice, Czech Republic.
| | - Marcela Slovakova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, Pardubice, Czech Republic.
| | - Zuzana Bilkova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, Pardubice, Czech Republic.
| | - Frantisek Foret
- Institute of Analytical Chemistry of the CAS, v. v. i., Veveri 967/97, Brno, Czech Republic
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Hromadkova L, Kupcik R, Vajrychova M, Prikryl P, Charvatova A, Jankovicova B, Ripova D, Bilkova Z, Slovakova M. Kinase-loaded magnetic beads for sequentialin vitrophosphorylation of peptides and proteins. Analyst 2018; 143:466-474. [DOI: 10.1039/c7an01508a] [Citation(s) in RCA: 8] [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] [Indexed: 02/06/2023]
Abstract
Kinases ERK2 and GSK-3β loaded magnetic beads for sequentialin vitrophosphorylation of peptides and proteins.
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Affiliation(s)
- Lenka Hromadkova
- Department of Biological and Biochemical Sciences
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice 532 10
- Czech Republic
| | - Rudolf Kupcik
- Department of Biological and Biochemical Sciences
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice 532 10
- Czech Republic
| | - Marie Vajrychova
- Biomedical Research Center
- University Hospital Hradec Kralove
- Hradec Kralove 500 05
- Czech Republic
- Department of Molecular Pathology and Biology
| | - Petr Prikryl
- Institute of Pathological Physiology
- First Faculty of Medicine
- Charles University in Prague
- Prague 128 53
- Czech Republic
| | - Andrea Charvatova
- Department of Biological and Biochemical Sciences
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice 532 10
- Czech Republic
| | - Barbora Jankovicova
- Department of Biological and Biochemical Sciences
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice 532 10
- Czech Republic
| | - Daniela Ripova
- National Institute of Mental Health
- Klecany 250 67
- Czech Republic
| | - Zuzana Bilkova
- Department of Biological and Biochemical Sciences
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice 532 10
- Czech Republic
| | - Marcela Slovakova
- Department of Biological and Biochemical Sciences
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice 532 10
- Czech Republic
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Jankovicova B, Rosnerova S, Slovakova M, Zverinova Z, Hubalek M, Hernychova L, Rehulka P, Viovy JL, Bilkova Z. Epitope mapping of allergen ovalbumin using biofunctionalized magnetic beads packed in microfluidic channels. J Chromatogr A 2008; 1206:64-71. [DOI: 10.1016/j.chroma.2008.07.062] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2008] [Revised: 07/18/2008] [Accepted: 07/23/2008] [Indexed: 10/21/2022]
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Le Nel A, Minc N, Smadja C, Slovakova M, Bilkova Z, Peyrin JM, Viovy JL, Taverna M. Controlled proteolysis of normal and pathological prion protein in a microfluidic chip. Lab Chip 2008; 8:294-301. [PMID: 18231669 DOI: 10.1039/b715238h] [Citation(s) in RCA: 33] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A microreactor for proteinase K (PK)-mediated protein digestion was developed as a step towards the elaboration of a fully integrated microdevice for the detection of pathological prion protein (PrP). PK-grafted magnetic beads were immobilized inside a polydimethylsiloxane (PDMS) microchannel using a longitudinal magnetic field parallel to the flow direction and a magnetic field gradient, thereby forming a matrix for enzymatic digestion. This self-organization provided uniform pore sizes, a low flow resistance and a strong reaction efficiency due to a very thin diffusion layer. The microreactor's performance was first evaluated using a model substrate, succinyl-ala-ala-ala-paranitroanilide (SAAAP). Reaction kinetics were typically accelerated a hundred-fold as compared to conventional batch reactions. Reproducibility was around 98% for on-chip experiments. This microsystem was then applied to the digestion of prion protein from brain tissues. Controlled proteolysis could be obtained by varying the on-chip flow rate, while a complete proteolysis of normal protein was achieved in only three minutes. Extracts from normal and pathological brain homogenates were finally compared and strong discrimination between normal and pathological samples was demonstrated.
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Affiliation(s)
- Anne Le Nel
- Université Paris-Sud, JE2495, Protéines et Nanotechnologies en Sciences Séparatives, F-92296 Châtenay-Malabry Cedex, France
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Slovakova M, Minc N, Bilkova Z, Smadja C, Faigle W, Fütterer C, Taverna M, Viovy JL. Use of self assembled magnetic beads for on-chip protein digestion. Lab Chip 2005; 5:935-42. [PMID: 16100577 DOI: 10.1039/b504861c] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The use of grafted trypsin magnetic beads in a microchip for performing protein digestion is described. The PDMS device uses strong magnets to create a magnetic field parallel to the flow with a strong gradient pointing through the center of the chip channel. This allows for the formation of a low-hydrodynamic resistance plug of magnetic trypsin beads that serves as a matrix for protein digestion. This device represents an inexpensive way of fabricating a multi open-tubular-like column with an appropriate pore size for proteins. Kinetics studies of the hydrolysis of a model peptide show a 100-fold increase in digestion speed obtained by the microsystem when compared to a batch wise system. This system also offers the great advantage of easy replacement, as the bead matrix is easily washed out and replaced. High performance and reproducibility for digesting recombinant human growth hormone are confirmed by analysing the digest products in both CE and MALDI-TOF MS. Similar sequence coverage (of about 44%) is obtained from MS analysis of products after 10 minutes on-chip and 4 h with soluble trypsin in bulk.
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Affiliation(s)
- Marcela Slovakova
- Laboratoire Physicochimie-Curie, UMR/CNRS 168, Institut Curie, 75248 Paris Cedex 5, France
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