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Karaliute I, Ramonaite R, Bernatoniene J, Petrikaite V, Misiunas A, Denkovskiene E, Razanskiene A, Gleba Y, Kupcinskas J, Skieceviciene J. Reduction of gastrointestinal tract colonization by Klebsiella quasipneumoniae using antimicrobial protein KvarIa. Gut Pathog 2022; 14:17. [PMID: 35473598 PMCID: PMC9040220 DOI: 10.1186/s13099-022-00492-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 04/09/2022] [Indexed: 12/03/2022] Open
Abstract
Background Klebsiella quasipneumoniae is an opportunistic pathogen causing antibiotic-resistant infections of the gastrointestinal tract in many clinical cases. Orally delivered bioactive Klebsiella-specific antimicrobial proteins, klebicins, could be a promising method to eradicate Klebsiella species infecting the gut. Methods Mouse infection model was established based on infection of antibiotic-treated BALB/C mice with K. quasipneumoniae strain DSM28212. Four study groups were used (3 animals/group) to test the antimicrobial efficacy of orally delivered klebicin KvarIa: vehicle-only group (control, phosphate-buffered saline), and other three groups with bacteria, antibiotic therapy and 100 µg of uncoated Kvarla, 100 µg coated KvarIa, 1000 µg coated-KvarIa. Because of the general sensitivity of bacteriocins to gastroduodenal proteases, Kvarla doses were coated with Eudragit®, a GMP-certified formulation agent that releases the protein at certain pH. The coating treatment was selected based on measurements of mouse GI tract pH. The quantity of Klebsiella haemolysin gene (khe) in faecal samples of the study animals was used to quantify the presence of Klebsiella. Results GI colonization of K. quasipneumoniae was achieved only in the antibiotic-treated mice groups. Significant changes in khe marker quantification were found after the use of Eudragit® S100 formulated klebicin KvarIa, at both doses, with a significant reduction of K. quasipneumoniae colonization compared to the vehicle-only control group. Conclusions Mouse GI tract colonization with K. quasipneumoniae can be achieved if natural gut microbiota is suppressed by prior antibiotic treatment. The study demonstrates that GI infection caused by K. quasipneumoniae can be significantly reduced using Eudragit®-protected klebicin KvarIa.
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Affiliation(s)
- Indre Karaliute
- Institute for Digestive Research, Laboratory of Clinical and Molecular Gastroenterology, Lithuanian University of Health Sciences, Mickeviciaus st. 9, 44307, Kaunas, Lithuania
| | - Rima Ramonaite
- Institute for Digestive Research, Laboratory of Clinical and Molecular Gastroenterology, Lithuanian University of Health Sciences, Mickeviciaus st. 9, 44307, Kaunas, Lithuania
| | - Jurga Bernatoniene
- Department of Drug Technology and Social Pharmacy, Lithuanian University of Health Sciences, Sukileliu Pr. 13, 50161, Kaunas, Lithuania
| | - Vilma Petrikaite
- Laboratory of Drug Targets Histopathology, Institute of Cardiology, Lithuanian University of Health Sciences, 50162, Kaunas, Lithuania
| | | | | | | | - Yuri Gleba
- Nomad Bioscience GmbH, Biozentrum Halle, Weinbergweg 22, 06120, Halle (Saale), Germany
| | - Juozas Kupcinskas
- Institute for Digestive Research, Laboratory of Clinical and Molecular Gastroenterology, Lithuanian University of Health Sciences, Mickeviciaus st. 9, 44307, Kaunas, Lithuania.,Department of Gastroenterology, Lithuanian University of Health Sciences, 44307, Kaunas, Lithuania
| | - Jurgita Skieceviciene
- Institute for Digestive Research, Laboratory of Clinical and Molecular Gastroenterology, Lithuanian University of Health Sciences, Mickeviciaus st. 9, 44307, Kaunas, Lithuania.
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Zvirbliene A, Kucinskaite-Kodze I, Razanskiene A, Petraityte-Burneikiene R, Klempa B, Ulrich RG, Gedvilaite A. The use of chimeric virus-like particles harbouring a segment of hantavirus Gc glycoprotein to generate a broadly-reactive hantavirus-specific monoclonal antibody. Viruses 2014; 6:640-60. [PMID: 24513568 PMCID: PMC3939476 DOI: 10.3390/v6020640] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 01/07/2014] [Accepted: 01/18/2014] [Indexed: 11/16/2022] Open
Abstract
Monoclonal antibodies (MAbs) against viral glycoproteins have important diagnostic and therapeutic applications. In most cases, the MAbs specific to viral glycoproteins are raised against intact virus particles. The biosynthesis of viral glycoproteins in heterologous expression systems such as bacteria, yeast, insect or mammalian cells is often problematic due to their low expression level, improper folding and limited stability. To generate MAbs against hantavirus glycoprotein Gc, we have used initially a recombinant yeast-expressed full-length Puumala virus (PUUV) Gc protein. However, this approach was unsuccessful. As an alternative recombinant antigen, chimeric virus-like particles (VLPs) harboring a segment of PUUV Gc glycoprotein were generated in yeast Saccharomyces cerevisiae. A 99 amino acid (aa)-long segment of Gc protein was inserted into the major capsid protein VP1 of hamster polyomavirus at previously defined positions: either site #1 (aa 80-89) or site #4 (aa 280-289). The chimeric proteins were found to self-assemble to VLPs as evidenced by electron microscopy. Chimeric VLPs induced an efficient insert-specific antibody response in immunized mice. Monoclonal antibody (clone #10B8) of IgG isotype specific to hantavirus Gc glycoprotein was generated. It recognized recombinant full-length PUUV Gc glycoprotein both in ELISA and Western blot assay and reacted specifically with hantavirus-infected cells in immunofluorescence assay. Epitope mapping studies revealed the N-terminally located epitope highly conserved among different hantavirus strains. In conclusion, our approach to use chimeric VLPs was proven useful for the generation of virus-reactive MAb against hantavirus Gc glycoprotein. The generated broadly-reactive MAb #10B8 might be useful for various diagnostic applications.
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Affiliation(s)
- Aurelija Zvirbliene
- Vilnius University Institute of Biotechnology, V.A. Graiciuno 8, Vilnius LT-02241, Lithuania.
| | - Indre Kucinskaite-Kodze
- Vilnius University Institute of Biotechnology, V.A. Graiciuno 8, Vilnius LT-02241, Lithuania.
| | - Ausra Razanskiene
- Vilnius University Institute of Biotechnology, V.A. Graiciuno 8, Vilnius LT-02241, Lithuania.
| | | | - Boris Klempa
- Institute of Medical Virology, Helmut-Ruska-Haus, Charité Medical School, Berlin 10117, Germany.
| | - Rainer G Ulrich
- Institute for Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Südufer 10, Greifswald-Insel Riems 17493, Germany.
| | - Alma Gedvilaite
- Vilnius University Institute of Biotechnology, V.A. Graiciuno 8, Vilnius LT-02241, Lithuania.
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Kucinskaite-Kodze I, Petraityte-Burneikiene R, Zvirbliene A, Hjelle B, Medina RA, Gedvilaite A, Razanskiene A, Schmidt-Chanasit J, Mertens M, Padula P, Sasnauskas K, Ulrich RG. Characterization of monoclonal antibodies against hantavirus nucleocapsid protein and their use for immunohistochemistry on rodent and human samples. Arch Virol 2011; 156:443-56. [PMID: 21161552 PMCID: PMC8628251 DOI: 10.1007/s00705-010-0879-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Accepted: 11/26/2010] [Indexed: 10/18/2022]
Abstract
Monoclonal antibodies are important tools for various applications in hantavirus diagnostics. Recently, we generated Puumala virus (PUUV)-reactive monoclonal antibodies (mAbs) by immunisation of mice with chimeric polyomavirus-derived virus-like particles (VLPs) harbouring the 120-amino-acid-long amino-terminal region of the PUUV nucleocapsid (N) protein. Here, we describe the generation of two mAbs by co-immunisation of mice with hexahistidine-tagged full-length N proteins of Sin Nombre virus (SNV) and Andes virus (ANDV), their characterization by different immunoassays and comparison with the previously generated mAbs raised against a segment of PUUV N protein inserted into VLPs. All of the mAbs reacted strongly in ELISA and western blot tests with the antigens used for immunization and cross-reacted to varying extents with N proteins of other hantaviruses. All mAbs raised against a segment of the PUUV N protein presented on chimeric VLPs and both mAbs raised against the full-length AND/SNV N protein reacted with Vero cells infected with different hantaviruses. The reactivity of mAbs with native viral nucleocapsids was also confirmed by their reactivity in immunohistochemistry assays with kidney tissue specimens from experimentally SNV-infected rodents and human heart tissue specimens from hantavirus cardiopulmonary syndrome patients. Therefore, the described mAbs represent useful tools for the immunodetection of hantavirus infection.
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Petraityte R, Yang H, Hunjan R, Razanskiene A, Dhanilall P, Ulrich RG, Sasnauskas K, Jin L. Development and evaluation of serological assays for detection of Hantaanvirus-specific antibodies in human sera using yeast-expressed nucleocapsid protein. J Virol Methods 2008; 148:89-95. [PMID: 18077007 DOI: 10.1016/j.jviromet.2007.10.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2007] [Revised: 10/17/2007] [Accepted: 10/26/2007] [Indexed: 01/04/2023]
Abstract
Indirect and capture enzyme-linked immunosorbent assays (ELISAs) for detection of Hantaan virus (HTNV)-specific immunoglobulins G (IgG) and M (IgM) in human serum samples were developed on the basis of recombinant yeast-expressed nucleocapsid (N) protein of HTNV. The sensitivities and specificities of the indirect and capture ELISAs were evaluated by comparing the reactivity of sera from patients with hemorrhagic fever with renal syndrome (HFRS) from China with that of a commercial IgG/IgM kit. The sensitivity of the indirect IgG and IgM ELISA tests was both 100% and the specificity of the indirect IgM and IgG ELISA test was 98% and 99%, respectively. The sensitivity and specificity of the capture IgM ELISA was 100% and 97%, respectively. The novel assays were found to detect HTNV-specific antibodies in acute phase sera from suspected HFRS patients in China. The results indicate that these novel ELISAs are suitable for the diagnosis of HTNV and for sero-epidemiological studies.
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Affiliation(s)
- Rasa Petraityte
- Institute of Biotechnology, VA Graiciūno 8, LT-02241, Vilnius, Lithuania
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Petraityte R, Jin L, Hunjan R, Razanskiene A, Zvirbliene A, Sasnauskas K. Use of Saccharomyces cerevisiae-expressed recombinant nucleocapsid protein to detect Hantaan virus-specific immunoglobulin G (IgG) and IgM in oral fluid. Clin Vaccine Immunol 2007; 14:1603-8. [PMID: 17913864 PMCID: PMC2168392 DOI: 10.1128/cvi.00188-07] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Hantaan virus is the causative agent of severe hemorrhagic fever with renal syndrome. Clinical surveillance for Hantaan virus infection is unreliable, and laboratory verification is essential. The detection of virus-specific immunoglobulin M (IgM) and IgG in serum is most commonly used for the diagnosis of hantavirus infection. Testing of oral fluid samples instead of serum offers many advantages for surveillance. However, commercial tests for hantavirus-specific antibodies are unavailable. For the detection of Hantaan virus in the oral fluid of humans, we have developed a monoclonal antibody-based capture enzyme-linked immunosorbent IgM assay (IgM capture ELISA) and indirect enzyme-linked immunosorbent IgG and IgM assays (indirect IgG and IgM ELISAs) for paired serum and oral fluid samples using the Saccharomyces cerevisiae yeast-expressed nucleocapsid protein of the Hantaan-Fojnica virus. The sensitivity and specificity of the oral fluid IgM capture ELISA in comparison with the results of the serum Hantaan virus IgM assay were 96.7% and of 94.9%, respectively. Thus, data on the overall performance of the oral fluid IgM capture ELISA are in close agreement with those of the serum IgM assay, and the method exhibits the potential to serve as an easily transferable tool for large-scale epidemiological studies. Data on the indirect IgM ELISA also showed close agreement with the serum IgM assay data; however, the indirect IgG ELISA displayed a lower sensitivity and a lower specificity. In conclusion, the IgM capture ELISA can be used with oral fluid instead of serum samples for the diagnosis of Hantaan virus infection.
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Affiliation(s)
- Rasa Petraityte
- Laboratory of Eukaryote Gene Engineering, Institute of Biotechnology, V.A. Graiciūno 8, LT-02241 Vilnius, Lithuania.
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Dargevicius A, Petraityte R, Sribikiene B, Sileikiene E, Razukeviciene L, Ziginskiene E, Vorobjoviene R, Razanskiene A, Sasnauskas K, Bumblyte IA, Kuzminskis V. [Prevalence of antibodies to hantavirus among hemodialysis patients with end-stage renal failure in Kaunas and its district]. Medicina (Kaunas) 2007; 43 Suppl 1:72-6. [PMID: 17551280] [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] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
UNLABELLED The objective of this study was to investigate the prevalence of antibodies to hantaviruses among hemodialysis patients with end-stage renal failure in Kaunas and its district. MATERIAL AND METHODS Serums of 218 patients from four dialysis centers of Kaunas district were tested by using the immunoglobulin G antibody-capture enzyme-linked immunosorbent assay (ELISA). The reactivity of ELISA-positive sera was proven in Western blot tests using various hantavirus recombinant nucleocapsid proteins. The yeast-expressed nucleocapsid proteins were used for testing. RESULTS Antibodies against Dobrava/Hantaan and Puumala hantaviruses were found in 16 patients (seroprevalence 7.4%). Most of the sera were positive for Dobrava hantavirus (81%). The ratio of males to females was 1.2:1. Seroprevalence was significantly higher in older patients. CONCLUSIONS Results indicate that antibodies to two hantaviruses (Dobrava/Hantaan virus and Puumala virus) are prevalent among hemodialysis patients in Kaunas district with approximately the same seroprevalence as in neighboring countries.
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Meisel H, Wolbert A, Razanskiene A, Marg A, Kazaks A, Sasnauskas K, Pauli G, Ulrich R, Krüger DH. Development of novel immunoglobulin G (IgG), IgA, and IgM enzyme immunoassays based on recombinant Puumala and Dobrava hantavirus nucleocapsid proteins. Clin Vaccine Immunol 2006; 13:1349-57. [PMID: 17021245 PMCID: PMC1694442 DOI: 10.1128/cvi.00208-06] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2006] [Revised: 07/09/2006] [Accepted: 09/28/2006] [Indexed: 12/19/2022]
Abstract
Human infections with Asian and European hantaviruses can result in hemorrhagic fever with renal syndromes of differing severities characterized by renal dysfunction and sometimes by pulmonary symptoms. For the serological detection of human infections by hantaviruses relevant for Europe, we developed monoclonal antibody capture immunoglobulin G (IgG) and IgA enzyme-linked immunosorbent assays (ELISAs) based on yeast-expressed nucleocapsid proteins of Puumala and Dobrava hantaviruses. Moreover, for diagnosis of acute infections, mu-capture IgM ELISAs were established with nucleocapsid proteins expressed in Drosophila melanogaster Schneider S2 cells. The cutoff values of the ELISAs were determined by investigation of up to 500 human anti-hantavirus-negative serum samples. The specificities of the Puumala and Dobrava virus-specific IgM, IgA, and IgG ELISAs were found to be 100%. The sensitivities of these ELISAs were determined to be 100% with panels of characterized anti-Puumala or anti-Dobrava virus-positive human serum samples. In most cases, Puumala and Dobrava virus infections could be differentiated by ELISA reactivity alone, i.e., endpoint titration with homologous and heterologous antigens.
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Affiliation(s)
- Helga Meisel
- Institute of Virology, Helmut-Ruska-Haus, Charité-Universitätsmedizin Berlin, Campus Charité Mitte, Charitéplatz 1, 10117 Berlin, Germany.
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Sandmann S, Meisel H, Razanskiene A, Wolbert A, Pohl B, Krüger DH, Sasnauskas K, Ulrich R. Detection of Human Hantavirus Infections in Lithuania. Infection 2005; 33:66-72. [PMID: 15827873 DOI: 10.1007/s15010-005-4058-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2004] [Accepted: 08/03/2004] [Indexed: 11/25/2022]
Abstract
BACKGROUND In Europe certain hantaviruses are known to cause hemorrhagic fever with renal syndrome of different severity. The objective of the present investigation was to study the presence of hantavirus infections in Lithuania. MATERIAL AND METHODS Two different serum panels from cancer patients (n = 438) and blood donors (n = 299) from Lithuania were tested by monoclonal antibody capture IgG ELISA using yeast-expressed recombinant nucleocapsid (rN) proteins of Puumala virus (PUUV), Hantaan virus (HTNV) and Dobrava virus (DOBV). The reactivity of ELISA-positive sera was proven in Western blot tests using various hantavirus rN proteins. Selected serum samples were further analyzed by focus reduction neutralization assays. RESULTS In the IgG ELISA 39 sera from the cancer patients and four sera from blood donors were found to be reactive with at least one of the rN proteins. By immunoblot using the three yeast-expressed rN proteins, the ELISA reactivity of 36 of 39 and two of four serum samples from cancer patients and blood donors, respectively, was confirmed; this corresponds to a seroprevalence of 8.2% and 0.7%, respectively. In ELISA, the majority of the samples reacted exclusively with rN proteins of HTNV and DOBV (31 of 36 and one of two in the two groups). In the group of sera selected for serotyping by focus reduction neutralization assay, this dominance was confirmed by the identification of eight DOBV but only four PUUV infections. No infection by HTNV or another hantavirus besides DOBV and PUUV was verified. Anti-hantavirus-positive human sera were detected in all seven investigated counties of Lithuania. CONCLUSION In Lithuania at least two hantaviruses, DOBV and PUUV, circulate and cause human infections. Additional investigations are needed to study the seroprevalence more precisely and to search for clinical cases of hantavirus infections.
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Affiliation(s)
- S Sandmann
- Institute of Virology, Charité Medical School, Campus Mitte, Berlin, Germany
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Razanskiene A, Schmidt J, Geldmacher A, Ritzi A, Niedrig M, Lundkvist A, Krüger DH, Meisel H, Sasnauskas K, Ulrich R. High yields of stable and highly pure nucleocapsid proteins of different hantaviruses can be generated in the yeast Saccharomyces cerevisiae. J Biotechnol 2004; 111:319-33. [PMID: 15246668 DOI: 10.1016/j.jbiotec.2004.04.010] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2003] [Revised: 04/14/2004] [Accepted: 04/30/2004] [Indexed: 11/26/2022]
Abstract
Recently, the high-level expression of authentic and hexahistidine (His)-tagged Puumala (strain Vranica/Hällnäs) hantavirus nucleocapsid protein derivatives in the yeast Saccharomyces cerevisiae has been reported [Dargeviciute et al., Vaccine, 20 (2002) 3523-3531]. Here we describe the expression of His-tagged nucleocapsid proteins of other Puumala virus strains (Sotkamo, Kazan) as well as Dobrava (strains Slovenia and Slovakia) and Hantaan (strain Fojnica) hantaviruses using the same system. All nucleocapsid proteins were expressed in the yeast S. cerevisiae at high levels. The nucleocapsid proteins can be easily purified by nickel chelate chromatography; the yield for all nucleocapsid proteins ranged from 0.5 to 1.5 mg per g wet weight of yeast cells. In general, long-term storage of all nucleocapsid proteins without degradation can be obtained by storage in PBS at -20 degrees C or lyophilization. The nucleocapsid protein of Puumala virus (strain Vranica/Hällnäs) was demonstrated to contain only traces of less than 10 pg nucleic acid contamination per 100 microg of protein. The yeast-expressed nucleocapsid proteins of Hantaan, Puumala and Dobrava viruses described here represent useful tools for serological hantavirus diagnostics and for vaccine development.
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Affiliation(s)
- Ausra Razanskiene
- Institute of Biotechnology, V. Graiciuno 8, LT-2028 Vilnius, Lithuania.
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