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Nikolaev YA, Mukhina TN, Potapov VD, Kuznetsov BB, El'-Registan GI, Firstova VV, Shemyakin IG, Manzenyuk OY. Antibiotic Adjuvant 4-Hexylresorcinol Enhances the Efficiency of Antituberculosis Drugs. Bull Exp Biol Med 2024; 176:466-471. [PMID: 38488964 DOI: 10.1007/s10517-024-06048-5] [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: 05/24/2023] [Indexed: 03/17/2024]
Abstract
We studied the possibility of using 4-hexylresorcinol to increase the efficiency of anti-mycobacterial chemotherapy. In an in vitro experiment, 4-hexylresorcinol increased the efficiency of rifampicin, kanamycin, and isoniazid against Mycobacterium smegmatis by 3-5 times. Experiments in sanitation of BALB/c mice infected with M. smegmatis showed the best efficacy of the isoniazid and 4-hexylresorcinol combination in comparison with isoniazid monotherapy. The growth-inhibiting activity of the combination of antibiotic rifabutin with 4-hexylresorcinol was shown on 6 strains of M. tuberculosis. A 2-fold decrease in the minimum inhibitory concentration of this antibiotic in the presence of half-minimum inhibitory concentration of 4-hexylresorcinol was demonstrated for monoresistant strain M. tuberculosis 5360/42Hr. On the mouse model of experimental tuberculosis caused by M. tuberculosis H37Rv, a 5-fold decrease in lung contamination and more rapid complete cure were achieved in animals treated with the combination of rifabutin and 4-hexylresorcinol in comparison with rifabutin monotherapy.
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Affiliation(s)
- Yu A Nikolaev
- Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow, Russia
| | - T N Mukhina
- State Research Center for Applied Microbiology and Biotechnology, Federal Service of Consumer Right Surveillance and Human Welfare, Obolensk, Moscow Region, Russia
| | - V D Potapov
- State Research Center for Applied Microbiology and Biotechnology, Federal Service of Consumer Right Surveillance and Human Welfare, Obolensk, Moscow Region, Russia
| | - B B Kuznetsov
- Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow, Russia
| | - G I El'-Registan
- Federal Research Centre "Fundamentals of Biotechnology", Russian Academy of Sciences, Moscow, Russia
| | - V V Firstova
- State Research Center for Applied Microbiology and Biotechnology, Federal Service of Consumer Right Surveillance and Human Welfare, Obolensk, Moscow Region, Russia
| | - I G Shemyakin
- State Research Center for Applied Microbiology and Biotechnology, Federal Service of Consumer Right Surveillance and Human Welfare, Obolensk, Moscow Region, Russia
| | - O Yu Manzenyuk
- State Research Center for Applied Microbiology and Biotechnology, Federal Service of Consumer Right Surveillance and Human Welfare, Obolensk, Moscow Region, Russia.
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2
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Manzenyuk OY, Suzina NE, Nikolaev YA, Mukhina TN, Firstova VV, El'-Registan GI, Shemyakin IG, Dyatlov IA. Stress-Tolerant Dormant Bacterial Forms: Biological and Ultrastructural Properties of Moraxella catarrhalis and Kocuria rhizophila. Bull Exp Biol Med 2024; 176:342-346. [PMID: 38342813 DOI: 10.1007/s10517-024-06021-2] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Indexed: 02/13/2024]
Abstract
Dormant forms of causative agents of healthcare-acquired infections Moraxella catarrhalis and Kocuria rhizophila have been obtained. Dormant forms cells retained viability during long-term storage (≈107 CFU/ml after 2 months) under provocative conditions (lack of nutrient sources; temperature 20°C, oxygen access) were characterized by heat resistance, and acquired special ultrastructural organization typical of dormant forms (compacted nucleoid, thickened cell wall). They were also capable of forming alternative phenotypes (dominant and small colony variants) in a new cycle of germination in a fresh medium. These results demonstrate that the dormant forms can be responsible both for survival in the environment and persistence in the host organism.
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Affiliation(s)
- O Yu Manzenyuk
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, Russia.
| | - N E Suzina
- Federal Research Center Pushchino Scientific Center of Biological Research, Russian Academy of Sciences, Pushchino, Moscow region, Russia
| | - Yu A Nikolaev
- Federal Research Center Fundamentals of Biotechnology, Russian Academy of Sciences, Moscow, Russia
| | - T N Mukhina
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, Russia
| | - V V Firstova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, Russia
| | - G I El'-Registan
- Federal Research Center Fundamentals of Biotechnology, Russian Academy of Sciences, Moscow, Russia
| | - I G Shemyakin
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, Russia
| | - I A Dyatlov
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, Russia
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3
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Romanenko YO, Silkina MV, Kartseva AS, Marin MA, Shkuratova MA, Makarova MA, Ryabko AK, Konyshkova DA, Zeninskaya NA, Khlyntseva AE, Shemyakin IG, Firstova VV. Characterization of the C6D7-RBD Human Monoclonal Antibody Specific to the SARS-CoV-2 S Protein Receptor-Binding Domain. Acta Naturae 2023; 15:81-86. [PMID: 37153507 PMCID: PMC10154778 DOI: 10.32607/actanaturae.11849] [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: 11/01/2022] [Accepted: 02/20/2023] [Indexed: 05/09/2023] Open
Abstract
The new coronavirus infection COVID-19 is an acute viral disease that affects primarily the upper respiratory tract. The etiological agent of COVID-19 is the SARS-CoV-2 RNA virus (Coronaviridae family, Betacoronavirus genus, Sarbecovirus subgenus). We have developed a high-affinity human monoclonal antibody, called C6D7-RBD, which is specific to the S protein receptor-binding domain (RBD) from the SARS-CoV-2 Wuhan-Hu-1 strain and exhibits virus-neutralizing activity in a test with recombinant antigens: angiotensin-converting enzyme 2 (ACE2) and RBD.
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Affiliation(s)
- Ya. O. Romanenko
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, 142279 Russian Federation
| | - M. V. Silkina
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, 142279 Russian Federation
| | - A. S. Kartseva
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, 142279 Russian Federation
| | - M. A. Marin
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, 142279 Russian Federation
| | - M. A. Shkuratova
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, 142279 Russian Federation
| | - M. A. Makarova
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, 142279 Russian Federation
| | - A. K. Ryabko
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, 142279 Russian Federation
| | - D. A. Konyshkova
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, 142279 Russian Federation
| | - N. A. Zeninskaya
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, 142279 Russian Federation
| | - A. E. Khlyntseva
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, 142279 Russian Federation
| | - I. G. Shemyakin
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, 142279 Russian Federation
| | - V. V. Firstova
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, 142279 Russian Federation
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4
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Silkina MV, Kartseva AS, Ryabko AK, Marin MA, Romanenko YO, Kalmantaeva OV, Khlyntseva AE, Shemyakin IG, Dyatlov IA, Firstova VV. Optimization of Electrofusion Parameters for Producing Hybridomas Synthesizing Human Monoclonal Antibodies. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822090095] [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: 12/23/2022]
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5
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Diuvenji EV, Nevolina ED, Mart’yanov SV, Zhurina MA, Kalmantaeva OV, Makarova MA, Botchkova EA, Firstova VV, Plakunov VK, Gannesen AV. Binary Biofilms of Staphylococcus aureus 209P and Kytococcus schroeteri H01: Dualistic Role of Kytococci and Cell Adhesion Alterations in the Presence of the A-Type Natriuretic Peptide. Microbiology (Reading) 2022. [DOI: 10.1134/s002626172260118x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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6
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Zeninskaya NA, Riabko AK, Marin MA, Kombarova TI, Mitsevich IP, Yeruslanov BV, Firstova VV, Shemyakin IG. Production and Characterization of Rat Monoclonal Antibodies against the PAL Antigen of Legionella spp. Mol Gen Microbiol Virol 2022; 37:65-70. [PMID: 36213626 PMCID: PMC9527138 DOI: 10.3103/s0891416822020082] [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] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/28/2020] [Accepted: 01/12/2021] [Indexed: 11/30/2022]
Abstract
The purpose of this work was to obtain genus-specific monoclonal antibodies against the Legionella spp. recombinant PAL protein, which will subsequently allow to use them as a basis for the development of new express tests for pathogenic legionella detection. A short three-week immunization protocol for Wistar rats was used to generate rat-mouse heterohybridomas producing antibodies against PAL. Mouse myeloma cell line Sp2/0-Ag14 served as the fusion partner. Hybridization was performed using two methods: PEG-mediated fusion and electrofusion. Subsequent screening was performed by indirect solid-phase ELISA against the target protein rPAL. Specificity analysis was performed by dot-blot using a panel of lysates obtained from 39 pure cultures of different strains, which included closely related and heterologous microorganisms among others. No difference in the efficiency of stable hybridoma clones production by the two indicated cell-fusion methods was detected. Twelve clones producing specific rat monoclonal antibodies were obtained based on the screening results. The obtained rat monoclonal antibodies are highly specific towards the PAL protein of L. pneumophila of different serological groups and other pathogenic legionella and are good candidates to be used as the components of diagnostic test systems for the detection of pathogenic representatives of the Legionella genus.
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Affiliation(s)
- N. A. Zeninskaya
- grid.419614.fState Scientific Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Moscow oblast Russia
| | - A. K. Riabko
- grid.419614.fState Scientific Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Moscow oblast Russia
| | - M. A. Marin
- grid.419614.fState Scientific Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Moscow oblast Russia
| | - T. I. Kombarova
- grid.419614.fState Scientific Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Moscow oblast Russia
| | - I. P. Mitsevich
- grid.419614.fState Scientific Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Moscow oblast Russia
| | - B. V. Yeruslanov
- grid.419614.fState Scientific Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Moscow oblast Russia
| | - V. V. Firstova
- grid.419614.fState Scientific Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Moscow oblast Russia
| | - I. G. Shemyakin
- grid.419614.fState Scientific Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Moscow oblast Russia
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7
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Romanenko YO, Riabko AK, Marin MA, Kartseva AS, Silkina MV, Shemyakin IG, Firstova VV. Mechanism of Action of Monoclonal Antibodies That Block the Activity of the Lethal Toxin of Bacillus Anthracis. Acta Naturae 2021; 13:98-104. [PMID: 35127153 PMCID: PMC8807536 DOI: 10.32607/actanaturae.11387] [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: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 11/20/2022] Open
Abstract
Neutralization of the lethal toxin of Bacillus anthracis is an important topic of both fundamental medicine and practical health care, regarding the fight against highly dangerous infections. We have generated a neutralizing monoclonal antibody 1E10 against the lethal toxin of Bacillus anthracis and described the stages of receptor interaction between the protective antigen (PA) and the surface of eukaryotic cells, the formation of PA oligomers, assembly of the lethal toxin (LT), and its translocation by endocytosis into the eukaryotic cell, followed by the formation of a true pore and the release of LT into the cell cytosol. The antibody was shown to act selectively at the stage of interaction between Bacillus anthracis and the eukaryotic cell, and the mechanism of toxin-neutralizing activity of the 1E10 antibody was revealed. The interaction between the 1E10 monoclonal antibody and PA was found to lead to inhibition of the enzymatic activity of the lethal factor (LF), most likely due to a disruption of true pore formation by PA, which blocks the release of LF into the cytosol.
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Affiliation(s)
- Ya. O. Romanenko
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor, Obolensk, Moscow Region, 142279 Russia
| | - A. K. Riabko
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor, Obolensk, Moscow Region, 142279 Russia
| | - M. A. Marin
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor, Obolensk, Moscow Region, 142279 Russia
| | - A. S. Kartseva
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor, Obolensk, Moscow Region, 142279 Russia
| | - M. V. Silkina
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor, Obolensk, Moscow Region, 142279 Russia
| | - I. G. Shemyakin
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor, Obolensk, Moscow Region, 142279 Russia
| | - V. V. Firstova
- Federal Budget Institution of Science State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor, Obolensk, Moscow Region, 142279 Russia
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8
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Shemyakin IG, Manzenyuk OY, El'-Registan GI, Firstova VV, Kombarova TI, Gneusheva TY, Kyazimov EI, Nikolaev YA. Effect of 4-Hexylresorcinol on the Efficiency of Antibiotic Treatment of Experimental Sepsis Caused by Antibiotic-Resistant Klebsiella pneumoniae Strain in Mice. Bull Exp Biol Med 2021; 171:458-460. [PMID: 34542762 DOI: 10.1007/s10517-021-05249-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Indexed: 11/29/2022]
Abstract
High efficiency of a combined preparation including synergistic polymyxin B and 4-hexylresorcinol was shown for treatment of experimental sepsis caused by an antibiotic-resistant highly virulent hypermucoid Klebsiella pneumoniae strain KPM9Pmr in mice. Complex therapy with polymyxin B (1 mg/kg) and 4-hexylresorcinol (30 mg/kg) led to cure in 80%; in 20% of these mice, no bacterial cells were found. After treatment with polymyxin B alone, only 50% animals survived and all of them contained bacterial cells. Comparative analysis of the results of monotherapy and combined treatment indicates that 4-hexylresorcinol not only increases the efficiency of antibiotic, but also minimizes persistence of the infection agent and therefore, the risk of development of antibiotic resistance.
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Affiliation(s)
- I G Shemyakin
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia.
| | - O Yu Manzenyuk
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
| | - G I El'-Registan
- Federal Research Center Fundamentals of Biotechnology, Russian Academy of Sciences, Moscow, Russia
| | - V V Firstova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
| | - T I Kombarova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
| | - T Yu Gneusheva
- I. M. Sechenov First Moscow State Medical University, Ministry of Health of the Russian Federation (Sechenov University), Moscow, Russia
| | | | - Yu A Nikolaev
- Federal Research Center Fundamentals of Biotechnology, Russian Academy of Sciences, Moscow, Russia
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9
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Shemyakin IG, Firstova VV, Fursova NK, Abaev IV, Filippovich SY, Ignatov SG, Dyatlov IA. Next-Generation Antibiotics, Bacteriophage Endolysins, and Nanomaterials for Combating Pathogens. Biochemistry (Mosc) 2021; 85:1374-1388. [PMID: 33280580 DOI: 10.1134/s0006297920110085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
This review presents various strategies to fight causative agents of infectious diseases. Species-specific programmable RNA-containing antibiotics open up new possibilities for creating next-generation of personalized drugs based on microbiome editing and can serve as a new tool for selective elimination of pathogenic bacterial species while keeping intact the rest of microbiota. Another promising approach in combating bacterial infections is genome editing using the CRISPR-Cas systems. Expanding knowledge on the molecular mechanisms of innate immunity has been actively used for developing new antimicrobials. However, obvious risks of using antibiotic adjuvants aimed at activation of the host immune system include development of the autoimmune response with subsequent organ damage. To avoid these risks, it is essential to elucidate action mechanisms of the specific ligands and signal molecules used as components of the hybrid antibiotics. Bacteriophage endolysins are also considered as effective antimicrobials against antibiotic-resistant bacteria, metabolically inactive persisters, and microbial biofilms. Despite significant advances in the design of implants with antibacterial properties, the problem of postoperative infections still remains. Different nanomodifications of the implant surface have been designed to reduce bacterial contamination. Here, we review bactericidal, fungicidal, and immunomodulating properties of compounds used for the implant surface nanomodifications, such as silver, boron nitride nanomaterials, nanofibers, and nanogalvanic materials.
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Affiliation(s)
- I G Shemyakin
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russia
| | - V V Firstova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russia.
| | - N K Fursova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russia
| | - I V Abaev
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russia
| | - S Yu Filippovich
- Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, 119071, Russia
| | - S G Ignatov
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russia
| | - I A Dyatlov
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russia
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10
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Kalmantaeva OV, Firstova VV, Grishchenko NS, Rudnitskaya TI, Potapov VD, Ignatov SG. Antibacterial and Immunomodulating Activity of Silver Nanoparticles on Mice Experimental Tuberculosis Model. APPL BIOCHEM MICRO+ 2020. [DOI: 10.1134/s0003683820020088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Kalmantaeva OV, Firstova VV, Potapov VD, Zyrina EV, Gerasimov VN, Ganina EA, Burmistrov VA, Borisov AV. Silver-nanoparticle exposure on immune system of mice depending on the route of administration. ACTA ACUST UNITED AC 2014. [DOI: 10.1134/s1995078014050061] [Citation(s) in RCA: 8] [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] [Indexed: 11/22/2022]
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12
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Zyrina EV, Firstova VV, Shtannikov AV, Titareva GM, Gutova VP, Vasil'eva IS, Biketov SF. [Immunomodulating effect of an Ixodes persulcatus (Ixodidae) tick salivary gland extract on BALB/c mice lymphocytes in an in vitro system]. Med Parazitol (Mosk) 2012:33-36. [PMID: 23437721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The immunomodulating effect of the components of an Ixodes persulcatus (Ixodidae) tick salivary gland extract (SGE) on BALB/c mice lymphocytes was evaluated. SGE of partially engorged ticks at a concentration of 50 microg/ml causes the maximum suppression ofT- and B-lymphocyte subpopulations. SGE of hungry ticks at the same concentration induces the suppression of only CD69+ T cells and TLR-2+ B cells, but produces no suppressive effect on CD69+ B lymphocytes, TLR-2+ T lymphocytes, and TLR-4+ T and B lymphocytes. SGE shows different effects on the synthesis of IFN-gamma and IL-4 by T helper cells. SGE of hungry ticks stimulated the increase of IFN-gamma and IL-4 synthesis by 4.7 and 2.6 times, respectively, as compared to the control. The findings may be of value in studying the pathogenesis of transmissible infections and in designing the vaccines based on tick gland components.
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MESH Headings
- Animals
- Antigens, CD/genetics
- Antigens, CD/immunology
- Antigens, Differentiation, T-Lymphocyte/genetics
- Antigens, Differentiation, T-Lymphocyte/immunology
- B-Lymphocytes/cytology
- B-Lymphocytes/drug effects
- B-Lymphocytes/immunology
- Cells, Cultured
- Gene Expression
- Immunologic Factors/immunology
- Immunologic Factors/pharmacology
- Interferon-gamma/biosynthesis
- Interferon-gamma/immunology
- Interleukin-10/biosynthesis
- Interleukin-10/immunology
- Interleukin-4/biosynthesis
- Interleukin-4/immunology
- Ixodes/chemistry
- Lectins, C-Type/genetics
- Lectins, C-Type/immunology
- Mice
- Mice, Inbred BALB C
- Salivary Glands/chemistry
- T-Lymphocytes/cytology
- T-Lymphocytes/drug effects
- T-Lymphocytes/immunology
- Tissue Extracts/immunology
- Tissue Extracts/pharmacology
- Toll-Like Receptor 2/genetics
- Toll-Like Receptor 2/immunology
- Toll-Like Receptor 4/genetics
- Toll-Like Receptor 4/immunology
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13
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Diatlov IA, Biketov SF, Firstova VV. [Perspectives of creation of vaccines against tick bite for nonspecific prophylaxis of vector borne diseases]. Zh Mikrobiol Epidemiol Immunobiol 2011:101-106. [PMID: 21913400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Prophylaxis of infectious diseases transferred by ticks is an important problem of contemporary medicine. One of the perspective approaches to solve this problem is the creation of vaccines against tickbite (anti-tickvaccines). Contemporary methods of the control of infectious diseases transferred by ticks are described in the review. Features of naturally and artificially acquired immunity against ticks are examined. Candidate tick antigens for the construction of vaccines against genus Ixodes tick bite are described. Perspectives of use of anti-tick vaccines against tick vector borne diseases are evaluated.
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14
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Eko FO, Schukovskaya T, Lotzmanova EY, Firstova VV, Emalyanova NV, Klueva SN, Kravtzov AL, Livanova LF, Kutyrev VV, Igietseme JU, Lubitz W. Evaluation of the protective efficacy of Vibrio cholerae ghost (VCG) candidate vaccines in rabbits. Vaccine 2003; 21:3663-74. [PMID: 12922096 DOI: 10.1016/s0264-410x(03)00388-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.4] [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] [Indexed: 10/27/2022]
Abstract
An effective Vibrio cholerae vaccine is needed to reduce the morbidity and mortality caused by this pathogen. Despite the availability of current oral vaccines with measurable efficacy, there is need for more effective vaccines with broad-spectrum efficacy in target populations. Recent studies have shown that bacterial ghosts, produced by the expression of cloned lysis gene E, possess adjuvant properties and are immunogenic. In this study, ghosts were prepared from V. cholerae O1 or O139 and evaluated as vaccines in the reversible intestinal tie adult rabbit diarrhea (RITARD) model. Rabbits were orally immunized with different doses of V. cholerae ghost (VCG) formulations. The vaccine formulations elicited high levels of serum vibriocidal titers against indicator strains. The magnitude of the response was measured as the geometric mean titer (GMT) increase for all rabbits in relation to prevaccination titers. The induction of cross protection was evidenced by the ability of serum from VCG-immunized rabbits to mediate complement-dependent killing of both the homologous and the heterologous strains. Immunized rabbits were protected against intraduodenal challenge 30 days after primary immunization. Protective immunity against challenge appeared to be dose dependent and was associated with marked inhibition of colonization. These results indicate that VCGs represent a novel approach to cholera vaccine development and constitute an effective vaccine delivery vehicle.
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Affiliation(s)
- Francis O Eko
- Department of Microbiology, Biochemistry and Immunology, Morehouse School of Medicine, 720 Westview Dr., S.W., Atlanta, GA 30310, USA.
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15
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Firstova VV, Stukova NI, Ledvanov MI. [Changes in the functional activity of neutrophils during their interaction with Yersinia pestis in vitro]. Zh Mikrobiol Epidemiol Immunobiol 2000:52-5. [PMID: 11220966] [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: 02/19/2023]
Abstract
The functional state and electrochemical properties of human blood neutrophil leukocytes after their in vitro interaction with Y. pestis cells, strain EV, was analyzed. A considerable decrease in the electrophoretic mobility of neutrophil leukocytes and a considerable increase in their phagocytic indices was shown. At the same time the maximum phagocytic activity in the total pool of isolated neutrophil leukocytes was registered in fractions having higher electrophoretic mobility. The dependence of electrophoretic mobility on the state of neutrophil membranes, as well as the degree of their activation, is discussed.
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Affiliation(s)
- V V Firstova
- Research Institute for Plague Control Microbe, Saratov, Russia
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