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Fursova NK, Fursov MV, Astashkin EI, Fursova AD, Novikova TS, Kislichkina AA, Sizova AA, Fedyukina GN, Savin IA, Ershova ON. Multidrug-Resistant and Extensively Drug-Resistant Acinetobacter baumannii Causing Nosocomial Meningitis in the Neurological Intensive Care Unit. Microorganisms 2023; 11:2020. [PMID: 37630581 PMCID: PMC10458171 DOI: 10.3390/microorganisms11082020] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Acinetobacter baumannii is one of the significant healthcare-associated meningitis agents characterized by multidrug resistance and a high mortality risk. Thirty-seven A. baumannii strains were isolated from thirty-seven patients of Moscow neuro-ICU with meningitis in 2013-2020. The death rate was 37.8%. Strain susceptibility to antimicrobials was determined on the Vitek-2 instrument. Whole-genome sequencing was conducted using Illumina technology; the sequence types (ST), capsular types (KL), lipooligosaccharide outer core locus (OCL), antimicrobial resistance genes, and virulence genes were identified. The prevalent ST was ST2, belonging to the international clone IC2, and rarer, ST1, ST19, ST45, ST78, ST106, and ST400, with prevalence of KL9 and OCL1. Twenty-nine strains belonged to multidrug-resistant (MDR) and eight extensively drug-resistant (XDR) categories. Genes conferring resistance to beta-lactams (blaPER, blaGES, blaADC, blaCARB, blaCTX-M, blaTEM, and blaOXA-types), aminoglycosides (aac, aad, ant, aph, and arm), tetracyclines (tet), macrolides (msr and mph), phenicols (cml, cat, and flo), sulfonamides (dfr and sul), rifampin (arr), and antiseptics (qac) were identified. Virulence genes of nine groups (Adherence, Biofilm formation, Enzymes, Immune evasion, Iron uptake, Regulation, Serum resistance, Stress adaptation, and Antiphagocytosis) were detected. The study highlights the heterogeneity in genetic clones, antimicrobial resistance, and virulence genes variability among the agents of A. baumannii meningitis, with the prevalence of the dominant international clone IC2.
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Affiliation(s)
- Nadezhda K. Fursova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (E.I.A.); (A.D.F.); (T.S.N.)
| | - Mikhail V. Fursov
- Department of Training and Improvement of Specialists, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia;
| | - Evgeny I. Astashkin
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (E.I.A.); (A.D.F.); (T.S.N.)
| | - Anastasiia D. Fursova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (E.I.A.); (A.D.F.); (T.S.N.)
| | - Tatiana S. Novikova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (E.I.A.); (A.D.F.); (T.S.N.)
| | - Angelina A. Kislichkina
- Department of Culture Collection, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (A.A.K.); (A.A.S.)
| | - Angelika A. Sizova
- Department of Culture Collection, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (A.A.K.); (A.A.S.)
| | - Galina N. Fedyukina
- Department of Immunochemistry of Pathogenic Microorganisms, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia;
| | - Ivan A. Savin
- Department of Clinical Epidemiology, National Medical Research Center of Neurosurgery Named after Academician N.N. Burdenko, 125047 Moscow, Russia; (I.A.S.); (O.N.E.)
| | - Olga N. Ershova
- Department of Clinical Epidemiology, National Medical Research Center of Neurosurgery Named after Academician N.N. Burdenko, 125047 Moscow, Russia; (I.A.S.); (O.N.E.)
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Kartsev NN, Detusheva EV, Kalmantaeva OV, Korobova OV, Gerasimov VN, Kombarova TI, Borzilov AI, Fursova NK, Vereshchagin AN, Svetoch EA. Hetero-Pathogenic O181:H4 EAHEC Strain of Sequence Type ST678 Associated with Hemolytic-Uremic Syndrome in Schoolchildren in Russia. Microorganisms 2023; 11:1771. [PMID: 37512943 PMCID: PMC10383572 DOI: 10.3390/microorganisms11071771] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/04/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND In the last decade, the importance of hetero-pathogenic enteroaggregative Shiga-toxin-producing E. coli for public health has increased. Recently, we described the genetic background of the EAHEC O181:H4 strain of ST678 carrying the stx2 gene in prophage and five plasmids, including the plasmid-carrying aggR and aaiC genes. Here, we present the morphological and enzymatic characteristics of this strain, as well as susceptibility to antimicrobials, biofilm formation, etc. Methods: Bacterial morphology was studied using an electron microscope. Susceptibility to antimicrobials was determined using the microdilution method. Cytotoxicity was estimated in Vero cells. Virulence was studied on mice. RESULTS The morphological and enzymatic properties of the hetero-pathogenic EAHEC strain were typical for E. coli; electron microscopy revealed the specific flagella. The strain was susceptible to most antibiotics and disinfectants but resistant to ampicillin and ciprofloxacin and showed a high degree of biofilm formation. Cytotoxicity towards Vero cells was estimated as 80%. CONCLUSIONS The emergence of a new O181:H4 EAHEC strain poses a potential threat to humans because of the virulence potential that must be taken into account in the epidemiological analysis of outbreaks and sporadic cases of foodborne infections associated with hemolytic-uremic syndrome.
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Affiliation(s)
- Nikolay N Kartsev
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory "Kvartal A", 142279 Obolensk, Russia
| | - Elena V Detusheva
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory "Kvartal A", 142279 Obolensk, Russia
| | - Olga V Kalmantaeva
- Laboratory of Molecular Biology, State Research Center for Applied Microbiology and Biotechnology, Territory "Kvartal A", 142279 Obolensk, Russia
| | - Olga V Korobova
- Laboratory of Biological Trials, State Research Center for Applied Microbiology and Biotechnology, Territory "Kvartal A", 142279 Obolensk, Russia
| | - Vladimir N Gerasimov
- Department of Disinfectology, State Research Center for Applied Microbiology and Biotechnology, Territory "Kvartal A", 142279 Obolensk, Russia
| | - Tatiana I Kombarova
- Laboratory of Biological Trials, State Research Center for Applied Microbiology and Biotechnology, Territory "Kvartal A", 142279 Obolensk, Russia
| | - Aleksander I Borzilov
- Laboratory of Biological Trials, State Research Center for Applied Microbiology and Biotechnology, Territory "Kvartal A", 142279 Obolensk, Russia
| | - Nadezhda K Fursova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory "Kvartal A", 142279 Obolensk, Russia
| | | | - Edward A Svetoch
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory "Kvartal A", 142279 Obolensk, Russia
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Kuzina ES, Kislichkina AA, Sizova AA, Skryabin YP, Novikova TS, Ershova ON, Savin IA, Khokhlova OE, Bogun AG, Fursova NK. High-Molecular-Weight Plasmids Carrying Carbapenemase Genes blaNDM-1, blaKPC-2, and blaOXA-48 Coexisting in Clinical Klebsiella pneumoniae Strains of ST39. Microorganisms 2023; 11:microorganisms11020459. [PMID: 36838424 PMCID: PMC9961262 DOI: 10.3390/microorganisms11020459] [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: 01/25/2023] [Revised: 02/07/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND Klebsiella pneumoniae, a member of the ESKAPE group of bacterial pathogens, has developed multi-antimicrobial resistance (AMR), including resistance to carbapenems, which has increased alarmingly due to the acquisition of carbapenemase genes located on specific plasmids. METHODS Four clinical K. pneumoniae isolates were collected from four patients of a neuro-intensive care unit in Moscow, Russia, during the point prevalence survey. The AMR phenotype was estimated using the Vitec-2 instrument, and whole genome sequencing (WGS) was done using Illumina and Nanopore technologies. RESULTS All strains were resistant to beta-lactams, nitrofurans, fluoroquinolones, sulfonamides, aminoglycosides, and tetracyclines. WGS analysis revealed that all strains were closely related to K. pneumoniae ST39, capsular type K-23, with 99.99% chromosome identity. The novelty of the study is the description of the strains carrying simultaneously three large plasmids of the IncHI1B, IncC, and IncFIB groups carrying the carbapenemase genes of three types, blaOXA-48, blaNDM-1, and blaKPC-2, respectively. The first of them, highly identical in all strains, was a hybrid plasmid that combined two regions of the resistance genes (blaOXA-48 and blaTEM-1 + blaCTX-M-15 + blaOXA-1 + catB + qnrS1 + int1) and a region of the virulence genes (iucABCD, iutA, terC, and rmpA2::IS110). CONCLUSION The spread of K. pneumoniae strains carrying multiple plasmids conferring resistance even to last-resort antibiotics is of great clinical concern.
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Affiliation(s)
- Ekaterina S. Kuzina
- Department of Training and Improvement of Specialists, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Angelina A. Kislichkina
- Department of Culture Collection, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Angelika A. Sizova
- Department of Culture Collection, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Yury P. Skryabin
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Tatiana S. Novikova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Olga N. Ershova
- Department of Clinical Epidemiology, National Medical Research Center of Neurosurgery Named after Academician N.N. Burdenko, 125047 Moscow, Russia
| | - Ivan A. Savin
- Department of Clinical Epidemiology, National Medical Research Center of Neurosurgery Named after Academician N.N. Burdenko, 125047 Moscow, Russia
| | - Olga E. Khokhlova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Alexander G. Bogun
- Department of Culture Collection, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Nadezhda K. Fursova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
- Correspondence:
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Kislichkina AA, Kartsev NN, Skryabin YP, Sizova AA, Kanashenko ME, Teymurazov MG, Kuzina ES, Bogun AG, Fursova NK, Svetoch EA, Dyatlov IA. Genomic Analysis of a Hybrid Enteroaggregative Hemorrhagic Escherichia coli O181:H4 Strain Causing Colitis with Hemolytic-Uremic Syndrome. Antibiotics (Basel) 2022; 11:antibiotics11101416. [PMID: 36290074 PMCID: PMC9598891 DOI: 10.3390/antibiotics11101416] [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: 09/21/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/16/2022] Open
Abstract
Hybrid diarrheagenic E. coli strains combining genetic markers belonging to different pathotypes have emerged worldwide and have been reported as a public health concern. The most well-known hybrid strain of enteroaggregative hemorrhagic E. coli is E. coli O104:H4 strain, which was an agent of a serious outbreak of acute gastroenteritis and hemolytic uremic syndrome (HUS) in Germany in 2011. A case of intestinal infection with HUS in St. Petersburg (Russian Federation) occurred in July 2018. E. coli strain SCPM-O-B-9427 was obtained from the rectal swab of the patient with HUS. It was determined as O181:H4-, stx2-, and aggR-positive and belonged to the phylogenetic group B2. The complete genome assembly of the strain SCPM-O-B-9427 contained one chromosome and five plasmids, including the plasmid coding an aggregative adherence fimbriae I. MLST analysis showed that the strain SCPM-O-B-9427 belonged to ST678, and like E. coli O104:H4 strains, 2011C-3493 caused the German outbreak in 2011, and 2009EL-2050 was isolated in the Republic of Georgia in 2009. Comparison of three strains showed almost the same structure of their chromosomes: the plasmids pAA and the stx2a phages are very similar, but they have distinct sets of the plasmids and some unique regions in the chromosomes.
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Affiliation(s)
- Angelina A. Kislichkina
- Department of Culture Collection, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
- Correspondence:
| | - Nikolay N. Kartsev
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Yury P. Skryabin
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Angelika A. Sizova
- Department of Culture Collection, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Maria E. Kanashenko
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Marat G. Teymurazov
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Ekaterina S. Kuzina
- Department of Training and Improvement of Specialists, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Alexander G. Bogun
- Department of Culture Collection, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Nadezhda K. Fursova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Edward A. Svetoch
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Ivan A. Dyatlov
- Department of Culture Collection, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
- Department of Training and Improvement of Specialists, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
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Fursova NK, Kislichkina AA, Khokhlova OE. Plasmids Carrying Antimicrobial Resistance Genes in Gram-Negative Bacteria. Microorganisms 2022; 10:microorganisms10081678. [PMID: 36014095 PMCID: PMC9416584 DOI: 10.3390/microorganisms10081678] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 11/16/2022] Open
Abstract
Gram-negative bacteria are prevalent pathogens associated with hospital-acquired infections (HAI) that are a major challenge for patient safety, especially in intensive care units [...].
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Affiliation(s)
- Nadezhda K. Fursova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
- Correspondence:
| | - Angelina A. Kislichkina
- Department of Culture Collection, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
| | - Olga E. Khokhlova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia
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Grigorenko VG, Khrenova MG, Andreeva IP, Rubtsova MY, Lev AI, Novikova TS, Detusheva EV, Fursova NK, Dyatlov IA, Egorov AM. Drug Repurposing of the Unithiol: Inhibition of Metallo-β-Lactamases for the Treatment of Carbapenem-Resistant Gram-Negative Bacterial Infections. Int J Mol Sci 2022; 23:ijms23031834. [PMID: 35163756 PMCID: PMC8837113 DOI: 10.3390/ijms23031834] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 12/06/2021] [Revised: 02/02/2022] [Accepted: 02/03/2022] [Indexed: 02/05/2023] Open
Abstract
The increasing antibiotic resistance is a clinical problem worldwide. Numerous Gram-negative bacteria have already become resistant to the most widely used class of antibacterial drugs, β-lactams. One of the main mechanisms is inactivation of β-lactam antibiotics by bacterial β-lactamases. Appearance and spread of these enzymes represent a continuous challenge for the clinical treatment of infections and for the design of new antibiotics and inhibitors. Drug repurposing is a prospective approach for finding new targets for drugs already approved for use. We describe here the inhibitory potency of known detoxifying antidote 2,3-dimercaptopropane-1-sulfonate (unithiol) against metallo-β-lactamases. Unithiol acts as a competitive inhibitor of meropenem hydrolysis by recombinant metallo-β-lactamase NDM-1 with the KI of 16.7 µM. It is an order of magnitude lower than the KI for l-captopril, the inhibitor of angiotensin-converting enzyme approved as a drug for the treatment of hypertension. Phenotypic methods demonstrate that the unithiol inhibits natural metallo-β-lactamases NDM-1 and VIM-2 produced by carbapenem-resistant K. pneumoniae and P. aeruginosa bacterial strains. The 3D full atom structures of unithiol complexes with NDM-1 and VIM-2 are obtained using QM/MM modeling. The thiol group is located between zinc cations of the active site occupying the same place as the catalytic hydroxide anion in the enzyme–substrate complex. The sulfate group forms both a coordination bond with a zinc cation and hydrogen bonds with the positively charged residue, lysine or arginine, responsible for proper orientation of antibiotics upon binding to the active site prior to hydrolysis. Thus, we demonstrate both experimentally and theoretically that the unithiol is a prospective competitive inhibitor of metallo-β-lactamases and it can be utilized in complex therapy together with the known β-lactam antibiotics.
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Affiliation(s)
- Vitaly G. Grigorenko
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (I.P.A.); (M.Y.R.); (A.M.E.)
- Correspondence: (V.G.G.); (M.G.K.)
| | - Maria G. Khrenova
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (I.P.A.); (M.Y.R.); (A.M.E.)
- Bach Institute of Biochemistry, Federal Research Centre “Fundamentals of Biotechnology” of the Russian Academy of Sciences, 119071 Moscow, Russia
- Correspondence: (V.G.G.); (M.G.K.)
| | - Irina P. Andreeva
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (I.P.A.); (M.Y.R.); (A.M.E.)
| | - Maya Yu. Rubtsova
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (I.P.A.); (M.Y.R.); (A.M.E.)
| | - Anastasia I. Lev
- State Research Center for Applied Microbiology & Biotechnology, 142279 Obolensk, Russia; (A.I.L.); (T.S.N.); (E.V.D.); (N.K.F.); (I.A.D.)
| | - Tatiana S. Novikova
- State Research Center for Applied Microbiology & Biotechnology, 142279 Obolensk, Russia; (A.I.L.); (T.S.N.); (E.V.D.); (N.K.F.); (I.A.D.)
| | - Elena V. Detusheva
- State Research Center for Applied Microbiology & Biotechnology, 142279 Obolensk, Russia; (A.I.L.); (T.S.N.); (E.V.D.); (N.K.F.); (I.A.D.)
| | - Nadezhda K. Fursova
- State Research Center for Applied Microbiology & Biotechnology, 142279 Obolensk, Russia; (A.I.L.); (T.S.N.); (E.V.D.); (N.K.F.); (I.A.D.)
| | - Ivan A. Dyatlov
- State Research Center for Applied Microbiology & Biotechnology, 142279 Obolensk, Russia; (A.I.L.); (T.S.N.); (E.V.D.); (N.K.F.); (I.A.D.)
| | - Alexey M. Egorov
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (I.P.A.); (M.Y.R.); (A.M.E.)
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Ivanov ME, Fursova NK, Potapov VD. Pseudomonas aeruginosa efflux pump superfamily (review of literature). Klin Lab Diagn 2022; 67:53-58. [PMID: 35077071 DOI: 10.51620/0869-2084-2022-67-1-53-58] [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] [Indexed: 11/06/2022]
Abstract
The significant increase in the number of antibiotic-resistant microorganisms observed in recent years is a public health problem worldwide. One of the molecular mechanisms for the formation of antimicrobial resistance in bacteria is the presence of efflux pumps. The review presents an analysis of experimental studies related to the study of efflux pumps in clinical strains of Pseudomonas aeruginosa, one of the representatives of hospital pathogens of the ESKAPE group. This review is intended for specialists developing new types of drugs against antibiotic-resistant strains, as well as researchers studying the mechanisms of bacterial resistance to antibiotics, heavy metals, biocides and other antimicrobial factors.
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Affiliation(s)
| | - N K Fursova
- Federal Budget Institution of Science «State Research Center for Applied Microbiology & Biotechnology»
| | - V D Potapov
- Federal Budget Institution of Science «State Research Center for Applied Microbiology & Biotechnology»
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Fursova NK, Astashkin EI, Ershova ON, Aleksandrova IA, Savin IA, Novikova TS, Fedyukina GN, Kislichkina AA, Fursov MV, Kuzina ES, Biketov SF, Dyatlov IA. Multidrug-Resistant Klebsiella pneumoniae Causing Severe Infections in the Neuro-ICU. Antibiotics (Basel) 2021; 10:antibiotics10080979. [PMID: 34439029 PMCID: PMC8389041 DOI: 10.3390/antibiotics10080979] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/09/2021] [Accepted: 08/13/2021] [Indexed: 11/16/2022] Open
Abstract
The purpose of this study was the identification of genetic lineages and antimicrobial resistance (AMR) and virulence genes in Klebsiella pneumoniae isolates associated with severe infections in the neuro-ICU. Susceptibility to antimicrobials was determined using the Vitek-2 instrument. AMR and virulence genes, sequence types (STs), and capsular types were identified by PCR. Whole-genome sequencing was conducted on the Illumina MiSeq platform. It was shown that K. pneumoniae isolates of ST14K2, ST23K57, ST39K23, ST76K23, ST86K2, ST218K57, ST219KL125/114, ST268K20, and ST2674K47 caused severe systemic infections, including ST14K2, ST39K23, and ST268K20 that were associated with fatal incomes. Moreover, eight isolates of ST395K2 and ST307KL102/149/155 were associated with manifestations of vasculitis and microcirculation disorders. Another 12 K. pneumoniae isolates of ST395K2,KL39, ST307KL102/149/155, and ST147K14/64 were collected from patients without severe systemic infections. Major isolates (n = 38) were XDR and MDR. Beta-lactamase genes were identified: blaSHV (n = 41), blaCTX-M (n = 28), blaTEM (n = 21), blaOXA-48 (n = 21), blaNDM (n = 1), and blaKPC (n = 1). The prevalent virulence genes were wabG (n = 41), fimH (n = 41), allS (n = 41), and uge (n = 34), and rarer, detected only in the genomes of the isolates causing severe systemic infections-rmpA (n = 8), kfu (n = 6), iroN (n = 5), and iroD (n = 5) indicating high potential of the isolates for hypervirulence.
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Affiliation(s)
- Nadezhda K. Fursova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (E.I.A.); (T.S.N.)
- Correspondence:
| | - Evgenii I. Astashkin
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (E.I.A.); (T.S.N.)
| | - Olga N. Ershova
- Department of Clinical Epidemiology, National Medical Research Center of Neurosurgery Named after Academician N.N. Burdenko, 125047 Moscow, Russia; (O.N.E.); (I.A.A.); (I.A.S.)
| | - Irina A. Aleksandrova
- Department of Clinical Epidemiology, National Medical Research Center of Neurosurgery Named after Academician N.N. Burdenko, 125047 Moscow, Russia; (O.N.E.); (I.A.A.); (I.A.S.)
| | - Ivan A. Savin
- Department of Clinical Epidemiology, National Medical Research Center of Neurosurgery Named after Academician N.N. Burdenko, 125047 Moscow, Russia; (O.N.E.); (I.A.A.); (I.A.S.)
| | - Tatiana S. Novikova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (E.I.A.); (T.S.N.)
| | - Galina N. Fedyukina
- Department of Immunobiochemistry of Pathogenic Microorganisms, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (G.N.F.); (S.F.B.)
| | - Angelina A. Kislichkina
- Department of Culture Collection, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia;
| | - Mikhail V. Fursov
- Department of Training and Improvement of Specialists, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (M.V.F.); (E.S.K.)
| | - Ekaterina S. Kuzina
- Department of Training and Improvement of Specialists, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (M.V.F.); (E.S.K.)
| | - Sergei F. Biketov
- Department of Immunobiochemistry of Pathogenic Microorganisms, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia; (G.N.F.); (S.F.B.)
| | - Ivan A. Dyatlov
- Department of Administration, State Research Center for Applied Microbiology and Biotechnology, Territory “Kvartal A”, 142279 Obolensk, Russia;
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Detusheva EV, Ershova ON, Fursova NK. The sensitivity of planktonic cultures and biofilms of gram-negative bacteria to commercial disinfectant and antiseptic preparations. Klin Lab Diagn 2021; 66:438-447. [PMID: 34292687 DOI: 10.51620/0869-2084-2021-66-7-438-447] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The in vitro antibacterial activity of 11 commercial disinfectant preparations and 8 antiseptics against 10 strains of the bacteria Klebsiella pneumoniae, Pseudomonas aeruginosa, Acinetobacter baumannii, Enterobacter cloaceae and Providencia stuartii obtained from international collections and isolated from neuroresuscitation patients in Moscow in 2018 was studied. The sensitivity of planktonic cultures to the preparations was determined by the method of serial dilutions in broth and the spot method on solid nutrient media, the sensitivity of biofilms by the applicator method. A general pattern was revealed: the level of sensitivity to tested disinfectants in clinical strains was lower than in reference strains. It was found that the disinfectants «Mikrobak-Forte», «SAT-22», «Neobak-Oksi» at the concentrations recommended by the manufacturers were effective against bacteria of all test strains, both in the plankton state and in the form of biofilms. On the contrary, the disinfectant preparations «Biodez-Optima», «Biodez-Extra DVU», «Novodez-Aktiv», «Triosept-Oksi», «Tristel Fusion for Surfaces», «Effect-Forte Plus», «Lactic-Oxy» did not have sufficient effectiveness in the concentrations recommended by the manufacturers, therefore it is proposed to use these drugs in higher concentrations. It was found that the disinfectant «Biodez-Extra DVU» is able to inhibit the growth of biofilms of bacteria of the species K. pneumoniae. The ability to suppress the growth of bacterial biofilms of K. pneumoniae, A. baumannii, P. aeruginosa was revealed for the «Triestel Fusion for surfaces disinfectant». The bacteria of all used test strains in the planktonic state were sensitive to all tested antiseptic preparations. However, the biofilms of the clinical strains of P. aeruginosa and P. stuartii. possessed resistance to the antiseptics «Octenidol», «Octenisept», «Miramistin», «Hexoral». Our studies indicate the need for sensitivity analysis of antibacterial drugs in representatives of hospital pathogens, including the modeling of bacterial biofilms, which is a very relevant and important scientific direction, necessary to improve the control of nosocomial infections in the Russian Federation.
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Affiliation(s)
| | | | - N K Fursova
- State Research Center for Applied Microbiology and Biotechnology
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10
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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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11
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Kanashenko ME, Mitzevich IP, Kartsev NN, Astashkin EI, Detusheva EV, Khramov MV, Svetoch EA, Fursova NK. A study of antibiotic and disinfectant susceptibility of Elizabethkingia meningoseptica. Klin Lab Diagn 2021; 66:242-247. [PMID: 33878247 DOI: 10.51620/0869-2084-2021-66-4-242-247] [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] [Indexed: 11/06/2022]
Abstract
For the local health service, Elizabethkingia meningoseptica remains a relatively new and little-known pathogen, whereas in many countries of Europe, Asia and other continents it is considered as a potential causative agent of nosocomial infections, especially in premature infants and immunocompromised patients. An analysis of the literature data, as well as our results indicate that E. meningoseptica should be considered as a potential pathogen, which is characterized by a unique profile of susceptibility to antimicrobial agents (AMP) and disinfectants. This article presents the results of a study of susceptibility to AMP and disinfectants of three isolates of E. meningoseptica, isolated during an investigation of an outbreak in one of the perinatal centers of the Russian Federation, where three cases of sepsis with a fatal outcome in premature infants caused by co-infection with Acinetobacter baumannii and E. meningoseptica were recorded between January and February 2016.
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Affiliation(s)
- M E Kanashenko
- State Research Center for Applied Microbiology and Biotechnology
| | - I P Mitzevich
- State Research Center for Applied Microbiology and Biotechnology
| | - N N Kartsev
- State Research Center for Applied Microbiology and Biotechnology
| | - E I Astashkin
- State Research Center for Applied Microbiology and Biotechnology
| | - E V Detusheva
- State Research Center for Applied Microbiology and Biotechnology
| | - M V Khramov
- State Research Center for Applied Microbiology and Biotechnology
| | - E A Svetoch
- State Research Center for Applied Microbiology and Biotechnology
| | - N K Fursova
- State Research Center for Applied Microbiology and Biotechnology
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12
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Fadeeva IV, Kalita VI, Komlev DI, Radiuk AA, Fomin AS, Davidova GA, Fursova NK, Murzakhanov FF, Gafurov MR, Fosca M, Antoniac IV, Barinov SM, Rau JV. In Vitro Properties of Manganese-Substituted Tricalcium Phosphate Coatings for Titanium Biomedical Implants Deposited by Arc Plasma. Materials (Basel) 2020; 13:E4411. [PMID: 33022953 PMCID: PMC7579245 DOI: 10.3390/ma13194411] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/23/2020] [Accepted: 10/01/2020] [Indexed: 11/16/2022]
Abstract
Bioactive manganese (Mn)-doped ceramic coatings for intraosseous titanium (Ti) implants are developed. Arc plasma deposition procedure is used for coatings preparation. X-ray Diffraction, Scanning Electron Microscopy-Energy Dispersive X-ray Spectroscopy, and Electron Paramagnetic Resonance (EPR) methods are applied for coatings characterization. The coatings are homogeneous, composed of the main phase α-tricalcium phosphate (α-TCP) (about 67%) and the minor phase hydroxyapatite (about 33%), and the Mn content is 2.3 wt%. EPR spectroscopy demonstrates that the Mn ions are incorporated in the TCP structure and are present in the coating in Mn2+ and Mn3+ oxidation states, being aggregated in clusters. The wetting contact angle of the deposited coatings is suitable for cells' adhesion and proliferation. In vitro soaking in physiological solution for 90 days leads to a drastic change in phase composition; the transformation into calcium carbonate and octacalcium phosphate takes place, and no more Mn is present. The absence of antibacterial activity against Escherichia coli, Enterococcus faecalis, and Pseudomonas aeruginosa bacteria strains is observed. A study of the metabolic activity of mouse fibroblasts of the NCTC L929 cell line on the coatings using the MTT (dye compound 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) test demonstrates that there is no toxic effect on the cell culture. Moreover, the coating material supports the adhesion and proliferation of the cells. A good adhesion, spreading, and proliferative activity of the human tooth postnatal dental pulp stem cells (DPSC) is demonstrated. The developed coatings are promising for implant application in orthopedics and dentistry.
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Affiliation(s)
- Inna V. Fadeeva
- A.A. Baikov Institute of Metallurgy and Material Science Russian Academy of Sciences, Leninsky, 49, 119334 Moscow, Russian; (I.V.F.); (V.I.K.); (D.I.K.); (A.A.R.); (A.S.F.); (S.M.B.)
| | - Vasilii I. Kalita
- A.A. Baikov Institute of Metallurgy and Material Science Russian Academy of Sciences, Leninsky, 49, 119334 Moscow, Russian; (I.V.F.); (V.I.K.); (D.I.K.); (A.A.R.); (A.S.F.); (S.M.B.)
| | - Dmitry I. Komlev
- A.A. Baikov Institute of Metallurgy and Material Science Russian Academy of Sciences, Leninsky, 49, 119334 Moscow, Russian; (I.V.F.); (V.I.K.); (D.I.K.); (A.A.R.); (A.S.F.); (S.M.B.)
| | - Alexei A. Radiuk
- A.A. Baikov Institute of Metallurgy and Material Science Russian Academy of Sciences, Leninsky, 49, 119334 Moscow, Russian; (I.V.F.); (V.I.K.); (D.I.K.); (A.A.R.); (A.S.F.); (S.M.B.)
| | - Alexander S. Fomin
- A.A. Baikov Institute of Metallurgy and Material Science Russian Academy of Sciences, Leninsky, 49, 119334 Moscow, Russian; (I.V.F.); (V.I.K.); (D.I.K.); (A.A.R.); (A.S.F.); (S.M.B.)
| | - Galina A. Davidova
- Institute of Theoretical and Experimental Biophysics of Russian Academy of Sciences, Institutskaya 3, Puschino, 142290 Moscow, Russian;
| | - Nadezhda K. Fursova
- Federal Budget Institution of Science State Scientific Center of Applied Microbiology and Biotechnology, 24 block A, Obolensk, Serpukhov, 142279 Moscow, Russian;
| | - Fadis F. Murzakhanov
- Institute of Physics, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russian; (F.F.M.); (M.R.G.)
| | - Marat R. Gafurov
- Institute of Physics, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russian; (F.F.M.); (M.R.G.)
| | - Marco Fosca
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133 Rome, Italy;
| | - Iulian V. Antoniac
- Faculty of Materials Science and Engineering, Politehnica University of Bucharest, 313 Splaiul Independentei, District 6, 060042 Bucharest, Romania;
| | - Sergey M. Barinov
- A.A. Baikov Institute of Metallurgy and Material Science Russian Academy of Sciences, Leninsky, 49, 119334 Moscow, Russian; (I.V.F.); (V.I.K.); (D.I.K.); (A.A.R.); (A.S.F.); (S.M.B.)
| | - Julietta V. Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133 Rome, Italy;
- Department of Analytical, Physical and Colloid Chemistry, Institute of Pharmacy, Sechenov First Moscow State Medical University, Trubetskaya 8, Build. 2, 119991 Moscow, Russian
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13
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Fursov MV, Shitikov EA, Bespyatykh JA, Bogun AG, Kislichkina AA, Kombarova TI, Rudnitskaya TI, Grishenko NS, Ganina EA, Domotenko LV, Fursova NK, Potapov VD, Dyatlov IA. Genotyping, Assessment of Virulence and Antibacterial Resistance of the Rostov Strain of Mycobacterium tuberculosis Attributed to the Central Asia Outbreak Clade. Pathogens 2020; 9:pathogens9050335. [PMID: 32365818 PMCID: PMC7281402 DOI: 10.3390/pathogens9050335] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/09/2020] [Accepted: 04/29/2020] [Indexed: 11/23/2022] Open
Abstract
The Central Asia Outbreak (CAO) clade is a growing public health problem for Central Asian countries. Members of the clade belong to the narrow branch of the Mycobacterium tuberculosis Beijing genotype and are characterized by multidrug resistance and increased transmissibility. The Rostov strain of M. tuberculosis isolated in Russia and attributed to the CAO clade based on PCR-assay and whole genome sequencing and the laboratory strain H37Rv were selected to evaluate the virulence on C57Bl/6 mice models by intravenous injection. All mice infected with the Rostov strain succumbed to death within a 48-day period, while more than half of the mice infected by the H37Rv strain survived within a 90-day period. Mice weight analysis revealed irreversible and severe depletion of animals infected with the Rostov strain compared to H37Rv. The histological investigation of lung and liver tissues of mice on the 30th day after injection of mycobacterial bacilli showed that the pattern of pathological changes generated by two strains were different. Moreover, bacterial load in the liver and lungs was higher for the Rostov strain infection. In conclusion, our data demonstrate that the drug-resistant Rostov strain exhibits a highly virulent phenotype which can be partly explained by the CAO-specific mutations.
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Affiliation(s)
- Mikhail V. Fursov
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia; (A.G.B.); (A.A.K.); (T.I.K.); (T.I.R.); (N.S.G.); (E.A.G.); (L.V.D.); (N.K.F.); (V.D.P.); (I.A.D.)
- Correspondence: (M.V.F.); (E.A.S.)
| | - Egor A. Shitikov
- Federal Research and Clinical Center of Physical-Chemical Medicine, Moscow 119435, Russia;
- Correspondence: (M.V.F.); (E.A.S.)
| | - Julia A. Bespyatykh
- Federal Research and Clinical Center of Physical-Chemical Medicine, Moscow 119435, Russia;
| | - Alexander G. Bogun
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia; (A.G.B.); (A.A.K.); (T.I.K.); (T.I.R.); (N.S.G.); (E.A.G.); (L.V.D.); (N.K.F.); (V.D.P.); (I.A.D.)
| | - Angelina A. Kislichkina
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia; (A.G.B.); (A.A.K.); (T.I.K.); (T.I.R.); (N.S.G.); (E.A.G.); (L.V.D.); (N.K.F.); (V.D.P.); (I.A.D.)
| | - Tatiana I. Kombarova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia; (A.G.B.); (A.A.K.); (T.I.K.); (T.I.R.); (N.S.G.); (E.A.G.); (L.V.D.); (N.K.F.); (V.D.P.); (I.A.D.)
| | - Tatiana I. Rudnitskaya
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia; (A.G.B.); (A.A.K.); (T.I.K.); (T.I.R.); (N.S.G.); (E.A.G.); (L.V.D.); (N.K.F.); (V.D.P.); (I.A.D.)
| | - Natalia S. Grishenko
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia; (A.G.B.); (A.A.K.); (T.I.K.); (T.I.R.); (N.S.G.); (E.A.G.); (L.V.D.); (N.K.F.); (V.D.P.); (I.A.D.)
| | - Elena A. Ganina
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia; (A.G.B.); (A.A.K.); (T.I.K.); (T.I.R.); (N.S.G.); (E.A.G.); (L.V.D.); (N.K.F.); (V.D.P.); (I.A.D.)
| | - Lubov V. Domotenko
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia; (A.G.B.); (A.A.K.); (T.I.K.); (T.I.R.); (N.S.G.); (E.A.G.); (L.V.D.); (N.K.F.); (V.D.P.); (I.A.D.)
| | - Nadezhda K. Fursova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia; (A.G.B.); (A.A.K.); (T.I.K.); (T.I.R.); (N.S.G.); (E.A.G.); (L.V.D.); (N.K.F.); (V.D.P.); (I.A.D.)
| | - Vasiliy D. Potapov
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia; (A.G.B.); (A.A.K.); (T.I.K.); (T.I.R.); (N.S.G.); (E.A.G.); (L.V.D.); (N.K.F.); (V.D.P.); (I.A.D.)
| | - Ivan A. Dyatlov
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia; (A.G.B.); (A.A.K.); (T.I.K.); (T.I.R.); (N.S.G.); (E.A.G.); (L.V.D.); (N.K.F.); (V.D.P.); (I.A.D.)
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14
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Detysheva EV, Fursova NK, Korovkin SA. [Antimicrobial activity of dioxidine and a dioxidin-containing preparation «Nosolin-Ultra, nasal drops».]. Klin Lab Diagn 2020; 65:244-250. [PMID: 32227731 DOI: 10.18821/0869-2084-2020-65-4-244-250] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 12/19/2019] [Indexed: 11/17/2022]
Abstract
The study is devoted to the study of the antimicrobial activity of the antioxidant dioxidin and the complex dioxin-containing preparation Nosolin-ultra, nasal drops against planktonic and biofilm cultures of pathogens of ENT infections, the dynamics of the formation of microbial resistance to dioxidine. 11 reference strains and 9 clinical strains of microorganisms were used in the study: Streptococcus spp., Staphylococcus spp., Micrococcus luteus, Haemophilus influenzae, Acinetobacter pittii, Klebsiella pneumoniae, Moraxella catarrhalis, Pseudomonas aeruginosa. The antimicrobial activity of preparations against planktonic cultures was determined by serial dilution in broth and spot method on solid nutrient media, against biofilms by the applicator method. The dynamics of dioxidine resistance formation was studied by passaging cultures in a liquid nutrient medium with increasing concentrations of antiseptic. Based on the study, it was found that Dioxidin showed antimicrobial activity against plankton cells of all strains (MBC=0.08-5 mg/ml), except S. pyogenes SN345 (MBC>5 mg/ml), inhibited the growth of formed biofilms (MBC=0.08-2.5 mg/ml) of all strains except S. pyogenes SN345 (MBC>5 mg/ml). The drug «Nosolin-ultra, nasal drops» was highly active against plankton cells (MBC=0.04-0.63 mg/ml) and biofilms (MBC=0.02-0.31 mg/ml) of gram-negative bacteria, except A. pittii (MBC>2.5 mg/ml), less active against plankton cells (MBC=1.25-2.5 mg/ml) and biofilms (MBC=0.02-0.31 mg/ml) of gram-positive bacteria and C. albicans. One strain (S. aureus) formed a variant resistant to dioxidine at a concentration of 20 mg/ml, which exceeded the concentration of dioxidine in the complex preparation; other strains (P. aeruginosa, K. pneumoniae, C. albicans) did not form such variants. The data obtained indicate that the drug «Nosolin-ultra, nasal drops» can be effectively used against most pathogens of ENT infections. It is worth noting that with prolonged use of the drug for some types of ENT pathogens in the future, a slight decrease in effectiveness may be noted.
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Affiliation(s)
- E V Detysheva
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, Russia
| | - N K Fursova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow region, Russia
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15
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Slukin PV, Svetoch EA, Aslanyan EM, Astashkin EI, Ershova MG, Poletaeva ED, Shepelin AP, Fursova NK. [Phenotypic and molecular genetic properties of Escherichia coli clinical strains isolated from patients with urological diseases]. Urologiia 2020:23-30. [PMID: 32351059] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
OBJECTIVE Microbiological and molecular genetic characterization resistance profiles of Escherichia coli strains isolated in a pilot single-center clinical study from patients of the urological department in Yaroslavl in 2016-2017. MATERIALS AND METHODS Clinical strains of E. coli (n=18) were isolated from the urine of women aged 23-84 years. The mobility of bacteria, colicinogenicity, and sensitivity to lactobacilli antagonism, biofilm formation, and susceptibility to antimicrobials were evaluated. The antibiotic resistance genes were identified. RESULTS The E. coli strains had a wide heterogeneity in mobility, colicinogenicity, and biofilm formation. They were sensitive to Lactobacillus acidophilus antagonism, as well as to nitrofurantoin, meropenem, fosfomycin and the main functional classes of disinfectants and antiseptics, but are resistant to beta-lactams, fluoroquinolones and aminoglycosides. The mcr-1 gene providing resistance to colistin was identified in two strains. CONCLUSIONS Analysis of genetic antibiotic resistance determinants revealed the genetic diversity of clinical E. coli strains. The obtained data on the strain sensitivity to antibacterials and disinfectants can be used by clinicians in choosing the optimal antibiotic therapy and treatment of abiotic surfaces in urological departments.
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Affiliation(s)
- P V Slukin
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
- Infectious Clinical Hospital No. 1, Yaroslavl, Russia
| | - E A Svetoch
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
- Infectious Clinical Hospital No. 1, Yaroslavl, Russia
| | - E M Aslanyan
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
- Infectious Clinical Hospital No. 1, Yaroslavl, Russia
| | - E I Astashkin
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
- Infectious Clinical Hospital No. 1, Yaroslavl, Russia
| | - M G Ershova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
- Infectious Clinical Hospital No. 1, Yaroslavl, Russia
| | - E D Poletaeva
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
- Infectious Clinical Hospital No. 1, Yaroslavl, Russia
| | - A P Shepelin
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
- Infectious Clinical Hospital No. 1, Yaroslavl, Russia
| | - N K Fursova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
- Infectious Clinical Hospital No. 1, Yaroslavl, Russia
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16
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Fursova NK, Astashkin EI, Gabrielyan NI, Novikova TS, Fedyukina GN, Kubanova MK, Esenova NM, Sharapchenko SO, Volozhantsev NV. Emergence of Five Genetic Lines ST395 NDM-1, ST13 OXA-48, ST3346 OXA-48, ST39 CTX-M-14, and Novel ST3551 OXA-48 of Multidrug-Resistant Clinical Klebsiella pneumoniae in Russia. Microb Drug Resist 2020; 26:924-933. [PMID: 32155384 DOI: 10.1089/mdr.2019.0289] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Aims: The objective of this study was phenotypic and genotypic characterization of antibacterial-resistant Klebsiella pneumoniae clinical strains isolated in Moscow Transplantology Intensive Care Unit in 2017-2019. Results: Major strains among K. pneumoniae (n = 63) isolated from 30 patients were recognized as extensive drug-resistant (n = 55) pathogens, and remaining strains were recognized as multidrug-resistant (n = 8) pathogens. The beta-lactamase genes blaSHV-1,-2a,-11,-27,-67,-187 (n = 63), blaCTX-M-14,-15 (n = 61), blaTEM-1 (n = 54), blaOXA-48 (n = 52), and blaNDM-1 (n = 2), as well as class 1 integrons (n = 19) carried gene cassette arrays aacA4 (n = 2), dfrA1-orfC (n = 6), aadB-aadA1 (n = 9), dfrA15-aadA1 (n = 3), and dfrA12-orfF-aadA2 (n = 1) were identified in the strains. All strains carried four virulence genes: wabG, fimH, uge, and allS, but two strains had additionally kfu gene. Six known sequence types (STs) of K. pneumoniae ST395 (n = 44), ST377 (n = 3), ST307 (n = 4), ST13 (n = 2), ST39 (n = 2), ST3346 (n = 1), and a novel sequence-type ST3551 (n = 7) were identified. Phylogenetic analysis showed that ST3551 belonged to the cluster of clonal group CG147, and the remaining six STs to the another cluster consisting of four subgroups. The emergence of K. pneumoniae genetic lines carrying epidemiologically significant beta-lactamase genes ST395NDM-1, ST13OXA-48, ST3346OXA-48/CTX-M-14, ST3551OXA-48, and ST39CTX-M-14 was the first case of detection in Russia. Conclusion: The emergence of novel carbapenemase-producing K. pneumoniae genetic lines in Russia highlights the global negative tendency of multidrug-resistant pathogens spread in high-technological medical centers.
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Affiliation(s)
- Nadezhda K Fursova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
| | - Evgeny I Astashkin
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
| | - Nina I Gabrielyan
- Academician V.I. Shumakov Federal Research Center of Transplantology and Artificial Organs, Moscow, Russia
| | - Tatiana S Novikova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
| | - Galina N Fedyukina
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russia
| | - Madina Kh Kubanova
- Academician V.I. Shumakov Federal Research Center of Transplantology and Artificial Organs, Moscow, Russia
| | - Nadezhda M Esenova
- Academician V.I. Shumakov Federal Research Center of Transplantology and Artificial Organs, Moscow, Russia
| | - Sofia O Sharapchenko
- Academician V.I. Shumakov Federal Research Center of Transplantology and Artificial Organs, Moscow, Russia
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17
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Volozhantsev NV, Shpirt AM, Kislichkina AA, Shashkov AS, Verevkin VV, Fursova NK, Knirel YA. Structure and gene cluster of the capsular polysaccharide of multidrug resistant carbapenemase OXA-48-producing Klebsiella pneumoniae strain KPB536 of the genetic line ST147. Res Microbiol 2019; 171:74-79. [PMID: 31606486 DOI: 10.1016/j.resmic.2019.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 07/01/2019] [Revised: 09/13/2019] [Accepted: 10/01/2019] [Indexed: 01/09/2023]
Abstract
The Gram-negative opportunistic pathogen Klebsiella pneumoniae is a significant cause of community-acquired and healthcare-associated infections for which multidrug resistance is a concern worldwide. A major virulence determinant of K. pneumoniae is a polysaccharide capsule (CPS) which forms a barrier around the bacterial cell wall, providing protection from environmental pressures and immune responses of eukaryotic organisms. More than 70 chemical capsule structures of serologically typeable K. pneumoniae strains are known. However, there are little data on the CPS structure and cps gene cluster organization of clinical multidrug resistant K. pneumoniae strains. Our investigation of multidrug resistant carbapenemase OXA-48-producing K. pneumoniae strain KPB536 identified a capsular type that was structurally similar to K. pneumoniae K10 but different from any K. pneumoniae CPS reported so far. The content and organization of the cps gene cluster in K. pneumoniae KPB536 also was determined. The catalytic functions of glycosyltransferases coded by the cps_KPB536 gene cluster were assigned by comparison with those responsible for the synthesis of glycoside linkages in the CPSs of K. pneumoniae types K10 and K61.
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Affiliation(s)
- Nikolay V Volozhantsev
- State Research Center for Applied Microbiology and Biotechnology, 142279, Obolensk, Moscow Region, Russia.
| | - Anna M Shpirt
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991, Moscow, Russia.
| | - Angelina A Kislichkina
- State Research Center for Applied Microbiology and Biotechnology, 142279, Obolensk, Moscow Region, Russia.
| | - Alexander S Shashkov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991, Moscow, Russia.
| | - Vladimir V Verevkin
- State Research Center for Applied Microbiology and Biotechnology, 142279, Obolensk, Moscow Region, Russia.
| | - Nadezhda K Fursova
- State Research Center for Applied Microbiology and Biotechnology, 142279, Obolensk, Moscow Region, Russia.
| | - Yuriy A Knirel
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, 119991, Moscow, Russia.
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18
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Kosilova IS, Domotenko LV, Fursova NK, Dentovskaya SV, Ershova MG, Shepelin AP. [Trials of the domestically produced nutrient medium «Agar Muller-Hinton II - Obolensk».]. Klin Lab Diagn 2019; 64:360-367. [PMID: 31200409 DOI: 10.18821/0869-2084-2019-64-6-360-367] [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: 04/25/2019] [Accepted: 04/30/2019] [Indexed: 11/17/2022]
Abstract
The results of the comparative tests of the «Agar Muller-Hinton II - Obolensk» nutrient medium developed in SRCAMB, Obolensk, and the control nutrient medium imported «Mueller Hinton II Agar» are presented in the study. The susceptibility of bacterial clinical strains to antimicrobial agents (AMP) was determined by the disc diffusion method and the method of gradient diffusion (E-test). The carbapenemase activity of the strains carrying the carbapenemase genes was determined by CIM-test. Total 173 characterized bacterial strains of species Klebsiella pneumoniae, Pseudomonas aeruginosa, Acinetobacter baumannii, Proteus mirabilis, Serratia marcescens, Enterobacter aerogenes, Escherichia coli; Photorhabdus spp., Staphylococcus aureus, Enterococcus spp. were used in the study, including producers of OXA- and NDM-types carbapenemases for gram negative bacteria. A high degree of coincidence of the results obtained on both nutrient media was shown. The consistency index of the strain sensitivity categories to AMPs (S, I, and R) was 98.2% for the disc diffusion method, and 94.4-100% - for E-test and CIM-test methods. Thus, within the framework of the Import Substitution Program, the domestic nutrient medium «MHA II-Obolensk» has been successfully developed. The nutrient medium meets the requirements of GOST R ISO 20776-2-2010 «Clinical laboratory testing and in vitro diagnostic test systems - Susceptibility testing of infectious agents and evaluation of performance of antimicrobial susceptibility test devices».
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Affiliation(s)
- I S Kosilova
- State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor, 142279, Obolensk, Moscow region, Russia
| | - L V Domotenko
- State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor, 142279, Obolensk, Moscow region, Russia
| | - N K Fursova
- State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor, 142279, Obolensk, Moscow region, Russia
| | - S V Dentovskaya
- State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor, 142279, Obolensk, Moscow region, Russia
| | - M G Ershova
- State Healthcare Institution of the Yaroslavl Region «Infectious Clinical hospital No. 1», Yaroslavl, Russia
| | - A P Shepelin
- State Research Center for Applied Microbiology and Biotechnology of Rospotrebnadzor, 142279, Obolensk, Moscow region, Russia
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19
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Popova AV, Shneider MM, Myakinina VP, Bannov VA, Edelstein MV, Rubalskii EO, Aleshkin AV, Fursova NK, Volozhantsev NV. Characterization of myophage AM24 infecting Acinetobacter baumannii of the K9 capsular type. Arch Virol 2019; 164:1493-1497. [PMID: 30895405 DOI: 10.1007/s00705-019-04208-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 02/04/2019] [Indexed: 12/21/2022]
Abstract
In the present study, we investigate the biological properties and genomic organization of virulent bacteriophage AM24, which specifically infects multidrug-resistant clinical Acinetobacter baumannii strains with a K9 capsular polysaccharide structure. The phage was identified as a member of the family Myoviridae by transmission electron microscopy. The AM24 linear double-stranded DNA genome of 97,177 bp contains 167 open reading frames. Putative functions were assigned for products of 40 predicted genes, including proteins involved in nucleotide metabolism and DNA replication, packaging of DNA into the capsid, phage assembly and structural proteins, and bacterial cell lysis. The gene encoding the tailspike, which possesses depolymerase activity towards the corresponding capsular polysaccharides, is situated in the phage genome outside of the structural module, upstream of the genes responsible for packaging of DNA into the capsid. The data on characterization of depolymerase-carrying phage AM24 contributes to our knowledge of the diversity of viruses infecting different capsular types of A. baumannii.
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Affiliation(s)
- Anastasia V Popova
- Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow Region, Russia. .,Institute of Antimicrobial Chemotherapy, Smolensk State Medical University, Smolensk, Russia. .,State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, Russia.
| | - Mikhail M Shneider
- Institute of Antimicrobial Chemotherapy, Smolensk State Medical University, Smolensk, Russia.,Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, Russia
| | - Vera P Myakinina
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, Russia
| | - Vasily A Bannov
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, Russia
| | - Mikhail V Edelstein
- Institute of Antimicrobial Chemotherapy, Smolensk State Medical University, Smolensk, Russia
| | - Evgenii O Rubalskii
- G. N. Gabrichevsky Research Institute for Epidemiology and Microbiology, Moscow, Russia.,Astrakhan State Medical University, Astrakhan, Russia.,Hannover Medical School, Hannover, Germany
| | - Andrey V Aleshkin
- G. N. Gabrichevsky Research Institute for Epidemiology and Microbiology, Moscow, Russia
| | - Nadezhda K Fursova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, Russia
| | - Nikolay V Volozhantsev
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, Russia
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20
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Detusheva EV, Skryiabin YP, Bogun AG, Kislichkina AA, Kadnikova LA, Fursova NK. [The study of patterns of development of resistance of Staphylococcus aureus to triclosan]. Klin Lab Diagn 2018; 63:60-64. [PMID: 30550094 DOI: 10.18821/0869-2084-2018-63-1-60-64] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 08/31/2017] [Indexed: 11/17/2022]
Abstract
The article presents the results of studying molecular genetic mechanisms of development of resistance to antiseptic Triclosan in strain Staphylococcus aureus АТСС25923. The modifcations of strain S. aureus АТСС25923 (Tr1, Tr2, Tr1С и Tr2С) are obtained resistant to 64 mg/l of Triclosan and stably preserving the given characteristic under cultivation in absence of selective pressure. The strain S. aureus Tr1was characterized by slightly delayed growth and the strain S. aureus Tr2 was characterized by growth velocity comparable with initial strain. In the Triclosan-resistant strains a mutation C284T in gene fabI was detected resulting in amino-acid replacement A95V in enzyme enoyl-acyl protein reductase FabI, triclosan target. Besides, in these strains a stably inheriting mutation was detected in genes associated with transport of substances in cell: hypothetical transport protein HlyC/CorC family transporter, protein-transporter of ions of Na+, K+, Li+ and alkali of Na+/H+ antiporter subunit F, membrane hypothetical protein and ATP-binding protein. It is demonstrated that resistance to triclosan in staphylococci is associated with acquirement of point mutations in genes of enoyl-acyl protein reductase and also in other genes related to transport of substances in bacterial cell.
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Affiliation(s)
- E V Detusheva
- The Federal budget institution of science "The state scientifc center of applied microbiology and biotechnology" of the Rospotrebnadzor, 142279, Obolensk, Moscow oblast, Russia
| | - Yu P Skryiabin
- The Federal budget institution of science "The state scientifc center of applied microbiology and biotechnology" of the Rospotrebnadzor, 142279, Obolensk, Moscow oblast, Russia
| | - A G Bogun
- The Federal budget institution of science "The state scientifc center of applied microbiology and biotechnology" of the Rospotrebnadzor, 142279, Obolensk, Moscow oblast, Russia
| | - A A Kislichkina
- The Federal budget institution of science "The state scientifc center of applied microbiology and biotechnology" of the Rospotrebnadzor, 142279, Obolensk, Moscow oblast, Russia
| | - L A Kadnikova
- The Federal budget institution of science "The state scientifc center of applied microbiology and biotechnology" of the Rospotrebnadzor, 142279, Obolensk, Moscow oblast, Russia
| | - N K Fursova
- The Federal budget institution of science "The state scientifc center of applied microbiology and biotechnology" of the Rospotrebnadzor, 142279, Obolensk, Moscow oblast, Russia
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21
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Lev AI, Astashkin EI, Kislichkina AA, Solovieva EV, Kombarova TI, Korobova OV, Ershova ON, Alexandrova IA, Malikov VE, Bogun AG, Borzilov AI, Volozhantsev NV, Svetoch EA, Fursova NK. Comparative analysis of Klebsiella pneumoniae strains isolated in 2012-2016 that differ by antibiotic resistance genes and virulence genes profiles. Pathog Glob Health 2018; 112:142-151. [PMID: 29708041 DOI: 10.1080/20477724.2018.1460949] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
The antibacterial resistance and virulence genotypes and phenotypes of 148 non-duplicate Klebsiella pneumoniae strains collected from 112 patients in Moscow hospitals in 2012-2016 including isolates from the respiratory system (57%), urine (30%), wounds (5%), cerebrospinal fluid (4%), blood (3%), and rectal swab (1%) were determined. The majority (98%) were multidrug resistant (MDR) strains carrying blaSHV (91%), blaCTX-M (74%), blaTEM (51%), blaOXA (38%), and blaNDM (1%) beta-lactamase genes, class 1 integrons (38%), and the porin protein gene ompK36 (96%). The beta-lactamase genes blaTEM-1, blaSHV-1, blaSHV-11, blaSHV-110, blaSHV-190, blaCTX-M-15, blaCTX-M-3, blaCTX-M-55, blaOXA-48, blaOXA-244, and blaNDM-1 were detected; class 1 integron gene cassette arrays (aadA1), (dfrA7), (dfrA1-orfC), (aadB-aadA1), (dfrA17-aadA5), and (dfrA12-orfF-aadA2) were identified. Twenty-two (15%) of clinical K. pneumoniae strains had hypermucoviscous (HV) phenotype defined as string test positive. The rmpA gene associated with HV phenotype was detected in 24% of strains. The intrapersonal mutation of rmpA gene (deletion of one nucleotide at the polyG tract) was a reason for negative hypermucoviscosity phenotype and low virulence of rmpA-positive K. pneumoniae strain KPB584. Eighteen virulent for mice strains with LD50 ≤ 104 CFU were attributed to sequence types ST23, ST86, ST218, ST65, ST2174, and ST2280 and to capsular types K1, K2, and K57. This study is the first report about hypervirulent K. pneumoniae strain KPB2580-14 of ST23K1 harboring extended-spectrum beta-lactamase CTX-M-15 and carbapenemase OXA-48 genes located on pCTX-M-15-like and pOXA-48-like plasmids correspondingly.
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Affiliation(s)
- Anastasia I Lev
- a State Research Center for Applied Microbiology and Biotechnology , Obolensk , Russia
| | - Eugeny I Astashkin
- a State Research Center for Applied Microbiology and Biotechnology , Obolensk , Russia
| | | | - Ekaterina V Solovieva
- a State Research Center for Applied Microbiology and Biotechnology , Obolensk , Russia
| | - Tatiana I Kombarova
- a State Research Center for Applied Microbiology and Biotechnology , Obolensk , Russia
| | - Olga V Korobova
- a State Research Center for Applied Microbiology and Biotechnology , Obolensk , Russia
| | - Olga N Ershova
- b Center for Neurosurgery (Academician Burdenko) , Moscow , Russia
| | | | | | - Alexander G Bogun
- a State Research Center for Applied Microbiology and Biotechnology , Obolensk , Russia
| | - Alexander I Borzilov
- a State Research Center for Applied Microbiology and Biotechnology , Obolensk , Russia
| | | | - Edward A Svetoch
- a State Research Center for Applied Microbiology and Biotechnology , Obolensk , Russia
| | - Nadezhda K Fursova
- a State Research Center for Applied Microbiology and Biotechnology , Obolensk , Russia
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22
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Kislichkina AA, Lev AI, Komisarova EV, Fursova NK, Myakinina VP, Mukhina TN, Bogun AA, Volozhantsev NV. Genome sequencing and comparative analysis of three hypermucoviscous Klebsiella pneumoniae strains isolated in Russia. Pathog Dis 2018; 75:3064883. [PMID: 28334288 DOI: 10.1093/femspd/ftx024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 03/08/2017] [Indexed: 11/15/2022] Open
Abstract
The prevalence and characteristics of hypermucoviscous (HV) strains among Klebsiella pneumoniae isolated in Russian hospitals were investigated. The HV strains accounted for 11% of the K. pneumoniae isolates collected in the period from 2011 to 2016, and were characterized as belonging to the K1, K2, K20 and K57 serotypes. Whole genome sequences (WGSs) of K. pneumoniae HV clinical strains KPi261 (SCPM-O-B-7850) and KPB4010 (SCPM-O-B-7846) belonging to the K1 and K2 capsular types, as well as WGSs of K. pneumoniae strain KPM9 (SCPM-O-B-7749) of the K20 capsular type isolated from freshwater, were completed. The final draft genome sequences of KPi261, KPB4010 and KPM9 strains consisted of 5 719 189, 5 431 785 and 5 427 926 bp with 57.0, 57.1 and 57.4% GC content, respectively. The chromosomal and plasmid genes associated with K. pneumoniae virulence including the capsular polysaccharide synthesis gene cluster, mucoid phenotype regulator rmpA and transcriptional activator rmpA2, the all operon associated with allantoin metabolism, the kfu operon involved in iron uptake, the aerobactin-producing system iucABCDiutA, and the iron-transport systems iroBCDN and fecIRA were detected.
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23
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Lev AI, Astashkin EI, Shaikhutdinova RZ, Platonov ME, Kartsev NN, Volozhantsev NV, Ershova ON, Svetoch EA, Fursova NK. Identification of IS1R and IS10R elements inserted into ompk36 porin gene of two multidrug-resistant Klebsiella pneumoniae hospital strains. FEMS Microbiol Lett 2018; 364:3586769. [PMID: 28402509 DOI: 10.1093/femsle/fnx072] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 10/02/2016] [Accepted: 04/10/2017] [Indexed: 01/01/2023] Open
Abstract
Hospital Klebsiella pneumoniae strains (n = 196) were collected in 2012-16 from the patients of a Moscow neurosurgical intensive care unit. Klebsiella pneumoniae strains were multidrug-resistant and carried beta-lactamase genes blaSHV (97.4% of strains), blaCTX-M (84.7%), blaTEM (56.1%), blaOXA-48-like (49.0%) and blaNDM-1 (one strain), class 1 integrons (43.4% of strains) and porin protein ompK36 gene (100% of strains). The ompK36 porin protein gene disruption by insertion sequence (IS) elements and OmpK36 production loss in two strains were detected in this study. Outer membrane proteins were isolated according to Carlone et al. (Rapid microprocedure for isolating detergent-insoluble outer membrane proteins from Haemophilus species. J Clin Microbiol 1986;24:330-2). The IS10R element belonging to the IS4 family, IS10 group was detected at the position of the 41st nucleotide of the ompK36 gene in K. pneumoniae strain KPB-2304K/15 (the first report for a certain IS element in K. pneumoniae). The IS1R element belonging to the IS1 family was identified at the position of the 86th nucleotide of the ompK36 gene in the K. pneumoniae strain KPB-367K/15 (novel insertion site for IS1 element into ompK36 gene). DNA transfer of the intact ompK36 gene into the strain KPB-367K/15 by vector plasmid restored OmpK36 porin protein production and resulted in a decrease of imipenem minimal inhibitory concentration. Such data confirm the importance of IS elements in ongoing multidrug-resistant evolution in hospital Klebsiella.
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Affiliation(s)
- Anastasia I Lev
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Serpukhov district, Moscow region, Russian Federation
| | - Evgeny I Astashkin
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Serpukhov district, Moscow region, Russian Federation
| | - Rima Z Shaikhutdinova
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Serpukhov district, Moscow region, Russian Federation
| | - Mikhail E Platonov
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Serpukhov district, Moscow region, Russian Federation
| | - Nikolay N Kartsev
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Serpukhov district, Moscow region, Russian Federation
| | - Nikolay V Volozhantsev
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Serpukhov district, Moscow region, Russian Federation
| | - Olga N Ershova
- Burdenko Neurosurgical Institute, 4-th Tverskaya-Yamskaya Street 16, 125047 Moscow, Russian Federation
| | - Edward A Svetoch
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Serpukhov district, Moscow region, Russian Federation
| | - Nadezhda K Fursova
- State Research Center for Applied Microbiology and Biotechnology, 142279 Obolensk, Serpukhov district, Moscow region, Russian Federation
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24
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Kartsev NN, Svetoch EA, Ershova MG, Abrosimova GN, Tazina OI, Pinchuk AS, Fursova NK, Shepelin AP, Dyatlov IA. [The characteristic of diarrheagenic Escherichia separated from children aged under 5 years old in Yaroslavl.]. Klin Lab Diagn 2018; 63:249-253. [PMID: 30677283 DOI: 10.18821/0869-2084-63-4-249-253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 12/25/2017] [Indexed: 06/09/2023]
Abstract
The diarrheagenic bacteria coli take a significant place among agents of acute intestinal infections in children aged under 5 years. The main danger among these pathogens is represented by both enterotoxigenic E. coli causing enteritis and enterocolitis accompanied by acute dehydration diarrhea and Escherichia producing shiga-toxin being agents of hemorrhagic colitis and hemolytic uremic syndrome. The fast and proper identification of agents of these two groups of pathogens is an important task of bacteriologists to be resolved for successful treatment of patient because tactics of therapy of enterotoxigenic diarrhea and hemorrhagic colitis and hemolytic uremic syndrome significantly differ. The high capacity of Escherichia coli to form populations resistant to anti-microbial medications, including pan-resistant ones, also is a serious problem for science and public health. The object of study was a collection of isolates of E. coli (n = 112), separated from 112 children aged under 5 years with clinical manifestations of acute intestinal infection, food toxic infection hemocolitis and diarrhea of obscure etiology in Yaroslavl in 2015-2017. Initially, the strains of E. coli were tested using diagnostic agglutinating coli-serums and then using reagents' kit «AmpliSens®Escherichiosis-FL» for detection and differentiation DNAof diarrheagenic bacteria coli and also with specific oligonucleotide primers to genes of virulence and O-serum group belonging. The obtained data permitted to determine belonging of analyzed strains of E. coli to four sub-groups: ЕНЕС (n = 9), EPEC (n = 17), ETEC (n = 1) и EAgEС (n = 1). All of them were agents of genes of pathogenicity specific for every pathogroup. The most numerous group EPEC was represented by strains of five serogroups with dominating among them serogroup O26 (9 strains). Therefore, studying collection of strains of diarrheagenic Escherichia isolated during 2015-1017 in Yaroslavl from children aged under 5 years with acute intestinal infections permitted to demonstrate efficiency of application of molecular genetic methods of analysis for characterizing E. coli i.e. establishment their serogroups, detection of genes of virulence and attributing to pathogroups.
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Affiliation(s)
- N N Kartsev
- The Federal Budget Institution of Science "The State Scientific Center of Applied Microbiology and Biotechnology" of Rospotrebnadzor, 142279, village Obolensk of the Moscow Oblast, Russia
| | - E A Svetoch
- The Federal Budget Institution of Science "The State Scientific Center of Applied Microbiology and Biotechnology" of Rospotrebnadzor, 142279, village Obolensk of the Moscow Oblast, Russia
| | - M G Ershova
- The State Budget Institution of Health Care "The Yaroslavl oblast infection clinical hospital № 1", Yaroslavl, Russia
| | - G N Abrosimova
- The State Budget Institution of Health Care "The Yaroslavl oblast infection clinical hospital № 1", Yaroslavl, Russia
| | - O I Tazina
- The Federal Budget Institution of Science "The State Scientific Center of Applied Microbiology and Biotechnology" of Rospotrebnadzor, 142279, village Obolensk of the Moscow Oblast, Russia
| | - A S Pinchuk
- The Federal Budget Institution of Science "The State Scientific Center of Applied Microbiology and Biotechnology" of Rospotrebnadzor, 142279, village Obolensk of the Moscow Oblast, Russia
| | - N K Fursova
- The Federal Budget Institution of Science "The State Scientific Center of Applied Microbiology and Biotechnology" of Rospotrebnadzor, 142279, village Obolensk of the Moscow Oblast, Russia
| | - A P Shepelin
- The Federal Budget Institution of Science "The State Scientific Center of Applied Microbiology and Biotechnology" of Rospotrebnadzor, 142279, village Obolensk of the Moscow Oblast, Russia
| | - I A Dyatlov
- The Federal Budget Institution of Science "The State Scientific Center of Applied Microbiology and Biotechnology" of Rospotrebnadzor, 142279, village Obolensk of the Moscow Oblast, Russia
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25
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Svetoch EA, Eruslanov BV, Kovalev YN, Mitsevich EV, Mitsevich IP, Levchuk VP, Fursova NK, Perelygin VV, Stepanshin YG, Teymurasov MG, Seal BS, Stern NJ. Antimicrobial Activities of Bacteriocins E 50-52 and B 602 Against Antibiotic-Resistant Strains Involved in Nosocomial Infections. Probiotics Antimicrob Proteins 2016; 1:136. [PMID: 26783168 DOI: 10.1007/s12602-009-9027-6] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The antimicrobial spectra of previously published bacteriocin E 50-52 (39 a.a.; 3,932 Da; pI = 8.5) and bacteriocin B 602 (29 a.a.; 3,864 Da; pI = 7.2) were determined. Named peptides were related to class IIa (pediocin-like) bacteriocins. Minimal inhibitory concentrations (MICs) of bacteriocins have been determined for bacterial isolates that were causative agents of nosocomial infections collected from Russian hospitals in 2003-2007, namely methicillin-resistant Staphylococcus aureus (MRSA) (n = 10); Acinetobacter baumannii (n = 11); Citrobacter freundii (n = 8); Escherichia coli (n = 9); Klebsiella pneumoniae (n = 10); Proteus spp. (n = 6); and Pseudomonas aeruginosa (n = 10). The majority of these tested isolates have been shown to be multidrug resistant and carry genetic determinants of antimicrobial resistance that were detected using polymerase chain reaction (PCR). The MICs of bacteriocin B 602 ranged from ≤0.025-1.56 μg/ml, and for bacteriocin E 50-52 from 0.05 to 6.25 μg/ml for all of 64 bacterial clinical isolates tested. Interestingly, the bacteriocins studied demonstrate activity on both Gram-positive and Gram-negative bacteria. Bacteriocins E 50-52 and B 602 show good activity against nosocomial bacterial agents resistant to many classes of modern antibacterials used in clinical practice. These bacteriocins should be examined as an alternative in treating infections caused by such agents.
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Affiliation(s)
- E A Svetoch
- State Research Center for Applied Microbiology and Biotechnology (SRCAMB), Obolensk, Russia
| | - B V Eruslanov
- State Research Center for Applied Microbiology and Biotechnology (SRCAMB), Obolensk, Russia
| | - Y N Kovalev
- State Research Center for Applied Microbiology and Biotechnology (SRCAMB), Obolensk, Russia
| | - E V Mitsevich
- State Research Center for Applied Microbiology and Biotechnology (SRCAMB), Obolensk, Russia
| | - I P Mitsevich
- State Research Center for Applied Microbiology and Biotechnology (SRCAMB), Obolensk, Russia
| | - V P Levchuk
- State Research Center for Applied Microbiology and Biotechnology (SRCAMB), Obolensk, Russia
| | - N K Fursova
- State Research Center for Applied Microbiology and Biotechnology (SRCAMB), Obolensk, Russia
| | - V V Perelygin
- State Research Center for Applied Microbiology and Biotechnology (SRCAMB), Obolensk, Russia
| | - Y G Stepanshin
- State Research Center for Applied Microbiology and Biotechnology (SRCAMB), Obolensk, Russia
| | - M G Teymurasov
- State Research Center for Applied Microbiology and Biotechnology (SRCAMB), Obolensk, Russia
| | - B S Seal
- Agricultural Research Service, US Department of Agriculture, Athens, GA, USA
| | - N J Stern
- Agricultural Research Service, US Department of Agriculture, Athens, GA, USA.
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Volozhantsev NV, Myakinina VP, Popova AV, Kislichkina AA, Komisarova EV, Knyazeva AI, Krasilnikova VM, Fursova NK, Svetoch EA. Complete genome sequence of novel T7-like virus vB_KpnP_KpV289 with lytic activity against Klebsiella pneumoniae. Arch Virol 2015; 161:499-501. [PMID: 26577901 DOI: 10.1007/s00705-015-2680-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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: 08/13/2015] [Accepted: 11/08/2015] [Indexed: 11/27/2022]
Abstract
A novel bacteriophage, vB_KpnP_KpV289, lytic for hypermucoviscous strains of Klebsiella pneumoniae, was attributed to the family Podoviridae, subfamily Autographivirinae, genus T7likevirus based on transmission electron microscopy and genome analysis. The complete genome of the bacteriophage vB_KpnP_KpV289 consists of a linear double-stranded DNA of 41,054 bp including 179-bp direct-repeat sequences at the ends and 51 open reading frames (ORFs). The G+C content is 52.56 %. The phage was shown to lyse 15 out of 140 (10.7 %) K. pneumoniae strains belonged to the capsular types K-1, K-2, and K-57 and strains without a determined capsular type, including a hypermucoviscous strain of the novel sequence type ST-1554.
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Affiliation(s)
- Nikolay V Volozhantsev
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russian Federation.
| | - Vera P Myakinina
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russian Federation
| | - Anastasia V Popova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russian Federation
| | - Angelina A Kislichkina
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russian Federation
| | - Ekaterina V Komisarova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russian Federation
| | - Anastasia I Knyazeva
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russian Federation
| | - Valentina M Krasilnikova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russian Federation
| | - Nadezhda K Fursova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russian Federation
| | - Eduard A Svetoch
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, Moscow Region, 142279, Russian Federation
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Fursova NK, Astashkin EI, Knyazeva AI, Kartsev NN, Leonova ES, Ershova ON, Alexandrova IA, Kurdyumova NV, Sazikina SY, Volozhantsev NV, Svetoch EA, Dyatlov IA. The spread of bla OXA-48 and bla OXA-244 carbapenemase genes among Klebsiella pneumoniae, Proteus mirabilis and Enterobacter spp. isolated in Moscow, Russia. Ann Clin Microbiol Antimicrob 2015; 14:46. [PMID: 26526183 PMCID: PMC4630924 DOI: 10.1186/s12941-015-0108-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [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: 07/21/2015] [Accepted: 10/15/2015] [Indexed: 11/10/2022] Open
Abstract
Background The spread of carbapenemase-producing Enterobacteriaceae (CPE) is a great problem of healthcare worldwide. Study of the spread for blaOXA-48-like genes coding epidemically significant carbapenemases among hospital pathogens is important for the regional and global epidemiology of antimicrobial resistance. Methods Antibacterial resistant isolates of Klebsiella pneumoniae (n = 95) from 54 patients, P.mirabilis (n = 32) from 20 patients, Enterobacter aerogenes (n = 6) from four patients, and Enterobacter cloacae (n = 4) from four patients were collected from January, 2013 to October, 2014 in neurosurgical intensive care unit (ICU) of the Burdenko Neurosurgery Institute, Moscow. Characteristics of the isolates were done using susceptibility tests, PCR detection of the resistance genes, genotyping, conjugation, DNA sequencing, and bioinformatic analysis. Results Major strains under study were multi drug resistant (MDR), resistant to three or more functional classes of drugs simultaneously—98.9 % K. pneumoniae, 100 % P.mirabilis, one E.aerogenes isolate, and one E.cloacae isolate. Molecular-genetic mechanism of MDR in K.pneumoniae and P.mirabilis isolates were based on carrying of epidemic extended-spectrum beta-lactamase blaCTX-M-15 gene (87.2 and 90.6 % accordingly), carbapenemase blaOXA-48-like gene (55.3 and 23.3 % accordingly), and class 1 (54.8 and 31.3 % accordingly) and class 2 (90.6 % P. mirabilis) integrons. The blaOXA-48-like-positive K. pneumoniae were collected during whole two-year surveillance period, while P. mirabilis and Enterobacter spp. carrying blaOXA-48-like genes were detected only after four and 18 months after the research start, respectively. The blaOXA-48-like gene acquisition was shown for P. mirabilis isolates collected from five patients and for E. cloacae isolate collected from one patient during their stay in the ICU, presumably from blaOXA-48-like-positive K. pneumoniae. The source of the blaOXA-244 gene acquired by E. aerogenes isolates and the time of this event were not recognized. Conclusions The expanding of CPE in the surveyed ICU was associated with the spread of blaOXA-48 and blaOXA-244 carbapenemase genes documented not only among K.pneumoniae, well-known bacterial host for such genes, but among P.mirabilis, E.aerogenes, and E. cloacae.
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Affiliation(s)
- Nadezhda K Fursova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, 142279, Moscow Region, Russia.
| | - Eugeny I Astashkin
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, 142279, Moscow Region, Russia.
| | - Anastasia I Knyazeva
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, 142279, Moscow Region, Russia.
| | - Nikolay N Kartsev
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, 142279, Moscow Region, Russia.
| | - Ekaterina S Leonova
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, 142279, Moscow Region, Russia.
| | - Olga N Ershova
- The Burdenko Neurosurgery Institute, Moscow, 125047, Russia.
| | | | | | | | - Nikolay V Volozhantsev
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, 142279, Moscow Region, Russia.
| | - Edward A Svetoch
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, 142279, Moscow Region, Russia.
| | - Ivan A Dyatlov
- State Research Center for Applied Microbiology and Biotechnology, Obolensk, 142279, Moscow Region, Russia.
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Kartsev NN, Fursova NK, Pachkunov DM, Bannov VA, Eruslanov BV, Svetoch EA, Dyatlov IA. Molecular Characterization of Enterotoxin-Producing Escherichia coli Collected in 2011-2012, Russia. PLoS One 2015; 10:e0123357. [PMID: 25923803 PMCID: PMC4414545 DOI: 10.1371/journal.pone.0123357] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 12/19/2014] [Accepted: 03/03/2015] [Indexed: 11/20/2022] Open
Abstract
Enterotoxin-producing Escherichia coli (ETEC) are one of the main causative agents of diarrhea in children especially in developing countries and travel diarrhoea in adults. Pathogenic properties of ETEC associated with their ability to produce a heat-stable (ST) and/or heat-labile (LT) enterotoxins, as well as adhesins providing bacterial adhesion to intestinal epithelial cells. This study presents the molecular characterization of the ETEC isolates collected from the Central and Far-Eastern regions of Russia in 2011–2012. It was shown that all ETEC under study (n=18) had the heat-labile enterotoxin-coding operon elt, and had no the genes of the heat-stable enterotoxin operon est. DNA sequencing revealed two types of nucleotide exchanges in the eltB gene coding subunit B of LT in isolates collected from Cherepovets city (Central region, Russia) and Vladivostok city (Far-East region, Russia). Only one ETEC strain carried genes cfaA, cfaB, cfaC and cfaD coding adhesion factor CFA/I. Expression of LT in four ETEC isolates in the agglutination reaction was detected using a latex test-system. The isolates were assigned to serogroups O142 (n = 6), О6 (n = 4), О25 (n = 5), О26 (n = 2), and O115 (n = 1). Genotyping showed that they belonged to an earlier described sequence-type ST4 (n = 3) as well as to 11 novel sequence-types ST1043, ST1312, ST3697, ST3707, ST3708, ST3709, ST3710, ST3755, ST3756, ST3757 and ST4509. The ETEC isolates displayed different levels of antimicrobial resistance. Eight isolates were resistant to only one drug, three isolates—to two drugs, one isolate—to three drugs, two isolates—to four antibacterials, and only one isolate to each of the five, six and ten antibacterials simultaneously. Genetic determinants of the resistance to beta-lactams and other classes of antibacterials on the ETEC genomes were identified. There are blaTEM (n = 10), blaCTX-M-15 (n = 1), class 1 integron (n = 3) carrying resistance cassettes to aminoglycosides and sulphonamides dfrA17-aadA5 and dfrA12-orfF-aadA2. One isolate ETEC_Ef-6 was found to be a multidrug-resistant (MDR) pathogen that carried both the beta-lactamase gene and class 1 integron. These data suggest the circulation of ETEC in Russia. Further investigations are necessary to study the spread of the revealed ETEC sequence types (STs) and serotypes. Their role in the etiology of diarrhea should be also estimated.
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Affiliation(s)
- Nikolay N. Kartsev
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russian Federation
- * E-mail:
| | - Nadezhda K. Fursova
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russian Federation
| | - Dmitry M. Pachkunov
- Department of Innovation Research, Volga State Technological University, Yoshkar-Ola, Russian Federation
| | - Vasiliy A. Bannov
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russian Federation
| | - Boris V. Eruslanov
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russian Federation
| | - Edward A. Svetoch
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russian Federation
| | - Ivan A. Dyatlov
- Department of Molecular Microbiology, State Research Center for Applied Microbiology and Biotechnology, Obolensk, Russian Federation
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Priamchuk SD, Fursova NK, Anisimova VA, Kovalev IN, Abaev IV, Kuzhel'naia EN, Svetoch EA. [An algorithm for identification of CTX-M-type beta-lactamase genes using restriction fragment length polymorphism analysis of PCR-product]. Mol Gen Mikrobiol Virusol 2011:7-13. [PMID: 22312894] [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
The algorithm of the identification of the bla(CTX-M) genes coding CTX-M-type beta-lactamases providing resistance to cephalosporins III-IV was developed. This algorithm provides identification of 49 genes of 96 genes presented in the GenBank database so far. Remaining 47 genes can be identified as consisting of small sub-groups composed of 2-6 genes with the exception of sub-group of the bla(CTX-M-14)-like genes composed of 13 genes. The identification of the bla(CTX-M) genes is based on two-step restriction fragment length polymorphism analysis of 544 bp PCR-product (PCR-RFLP). In the first step, determination of subtype (cluster) of the bla(CTX-M) gene occurred using the restriction nuclease Alu I: cluster 1, -2, -8, -9 or -25. Moreover, four genes can be identified just at this step: bla(CTX-M)-59, (cluster 2); bla(CTX-M-63) (cluster 8), bla(CTX-M-45) (cluster 9), and bla(CTX-M-78) (hybrid gene between cluster 2 and cluster 25). At the second step gene identification goes on inside of each cluster separately using a set of 26 restriction nucleases. As a result of the PCR-RFLP-analysis, 23 bla(CTX-M) genes can be identified at the cluster 1, 11 genes--at the cluster 2, 4 genes--at the cluster 8, 9 genes--at the cluster 9, 1 gene--at the cluster 25, and 2 hybrid genes: bla(CTX-M-78) (between clusters 2 and 25), and bla(CTX-M-64) (between clusters 1 and 9). The described algorithm was used for identification of the blac(CTX-M) genes (n = 585) detected in Enterobacteriaceae nosocomial isolates (n = 877), collected from Russial hospitals in 2003-2007. It was shown that major genes belonged to cluster 1 (n = 543), namely--bla(CTX-M-15) gene (n = 515), bla(CTX-M-3) (n = 25), bla(CTX-M-22) (n = 1), bla(CTX-M-23) (n = 1), and bla(CTM-34) (n = 1). Moreover, the genes atributed to cluster 2 were identified: bla(CTX-M-2) (n = 1), and bla(CTX-M-5) (n = 4); and genes belonged to cluster 9: bla(CTX-M-9) (n = 2), and bla(CTX-M-14) (n = 35).
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Svetoch ÉA, Eruslanov BV, Levchuk VP, Mitsevich EV, Mitsevich IP, Kovalev IN, Fursova NK, Teĭmurazov MG, Stepanshin IG, Volodina LI, Diatlov IA. [Antimicrobial activity of bacteriocin S760 produced by Enterococcus faecium strain LWP760]. Antibiot Khimioter 2011; 56:3-9. [PMID: 21780664] [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
Antimicrobial activity of bacteriocin S760 (enterocin) produced by Enterococcusfaecium strain LWP760 was studied. Bacteriocin S760 is a cationic, hydrophobic, and heat stable peptide with the molecular weight of 5.5 kDa and pl of 9.8. Enterocin S760 is shown to inhibit in vitro the growth both of sensitive and resistant to antibacterials gramnegative and grampositive bacteria of 25 species. MICs of the bacteriocin S760 vary between 0.05-1.6 mg/l for Escherichia coli 0157:H117, Salmonella typhimurium, Salmonella enteritidis, Campylobacter jejuni, Yersinia enterocolitica, Yersinia pseudotuberculosis, Listeria monocytogenes and Clostridium perfringens, that are main food-borne pathogens, and from 0.4-1.6 mg/l for Streptococcus pyogenes, Streptococcus pneumoniae and Corynebacterium diphteriae. It is also active against antibioticresistant strains of Staphylococcus aureus, Enterobacter cloacae, Acinetobacter baumannii (with MICs of 0.05-3 mg/l), Klebsiella pneumoniae (with MICs of 6 mg/l), Pseudomonas aeruginosa (with MICs of 0.4-25 mg/1), as well against fungi belonging to species of Candida albicans, Candida krusei and Aspergillus niger (with MICs of 0.1-0.2 mg/l). Enterocin S760 is a novel antimicrobial agents useful in medicine, veterinary and food industry.
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Priamchuk SD, Fursova NK, Abaev IV, Kovalev IN, Shishkova NA, Pecherskikh EI, Korobova OV, Astashkin EI, Pachkunov DM, Kruglov AN, Ivanov DV, Sidorenko SV, Svetoch EA, Diatlov IA. [Genetic determinants of antibacterial resistance among nosocomial Escherichia coli, Klebsiella spp., and Enterobacter spp. isolates collected in Russia within 2003-2007]. Antibiot Khimioter 2010; 55:3-10. [PMID: 21400746] [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: 05/30/2023]
Abstract
Nosocomial bacterial isolates collected within 2003-2004 (n=411) and 2005-2007 (n=422) were highly resistant to cephalosporins III-IV and antibacterials of other groups (aminoglycosides, fluoroquinolons, chloramphenicol, and co-trimoxazole). Genes encoding TEM, SHV, CTX-M, OXA-2, and AmpC types of beta-lactamases (BLs) in the E. coli, Klebsiella spp., and Enterobacter spp. isolates were detected using polymerase chain reaction (PCR). Prevalent CTX-M-type BLs were detected in 85% of the E. coli, 87% of the Klebsiella spp., and 38% of the Enterobacter spp. isolates of the first strain collection and in 94% of the E. coli, 91% of the Klebsiella spp., and 38% of the Enterobacter spp. isolates of the second one. Genes belonging to three subtypes of blacTx-M genes were identified: bla(CTX-M-1) (228 bla(CTX-M-15) and six bla(CTX-M-3) of the first strain collection; 275 bla(CTX-M-15), three bla(CTX-M-3), and one bla(CTX-M-22) of the second one), bla(CTX-M-2) (one bla(CTX-M-5) of the first strain collection and one bla(CTX-M-2) of the second one), bla(CTX-M-9) (17 bla(CTX-M-14) and one bla(CTX-M-9) of the first strain collection; seven bla(CTX-M-14) and one bla(CTX-M-9) of the second one). Three isolates of the first strain collection and one isolate of the second one carried two genes belonging to two different subtypes, i.e., bla(CTX-M-15) and bla(CTX-M-14) simultaneously. The bacterial isolates had high levels of associative resistance to ciprofloxacin, co-trimoxazole, gentamicin, amikacin, and chloramphenicol associated with the resistance gene cassettes aadA1, aadA2, aadA5, aadB, aacA4, aac(6')Ib; dfrA1, dfrA5, dfrA12, dfrA17, cmlA1, ereA2, and catB8 in the class 1 integrons and the resistance gene cassettes dfrA1, sat1, and aadA1 in the class 2 integrons.
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Fursova NK, Pryamchuk SD, Abaev IV, Kovalev YN, Shishkova NA, Pecherskikh EI, Korobova OV, Astashkin EI, Pachkunov DM, Svetoch EA, Sidorenko SV. [Genetic environments of bla(CTX-M) genes located on conjugative plasmids of Enterobacteriaceae nosocomial isolates collected in Russia within 2003-2007]. Antibiot Khimioter 2010; 55:3-10. [PMID: 21574418] [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: 05/30/2023]
Abstract
The study showed that bla(CTX-M) genes were present in the genomes of 71% of cephalosporin resistant Enterobacteriaceae nosocomial isolates (n=833) collected in Russian hospitals within 2003-2007, including 91% of E.coli, 90% of Klebsiella spp., 38% of Enterobacter spp., 31% of Citrobacter spp. (n=9), and 36% of the other Enterobacteriaceae species. The genes belonging to the following subtypes (clusters) were identified: bla(CTX-M-1) (529 bla(CTX-M-15) genes; 25 bla(CTX-M-3) genes; 1 bla(CTX-M-22) gene, 1 bla(CTX-M-23) gene, and 1 bla(CTX-M-34) gene); bla(CTX-M-2) (1 bla(CTX-M-2) gene, and 4 bla(CTX-M-5) genes), and bla(CTX-M-9) (2 bla(CTX-M-9) genes, and 28 bla(CTX-M-14) genes). It was shown that bla(CTX-M) genes were located on high-molecular weight (60-160 bp) conjugative plasmids belonging mainly to the incompatibility groups IncF, IncL/M and IncA/C (bla(CTX-M-15) gene); IncL/M(bla(CTX-M-3) gene); and IncF, IncL/Mand IncI1-ly (CTX-M-14 gene). The gene environments of bla(CTX-M) genes were shown specific for the subtype of the genes. A mobile genetic element ISEcp1 (in some cases deleted or inserted by IS26, IS1, IS10, resTn2, or resTn3 sequences, in direct or reverse position) were detected upstream of bla(CTX-M-3), bla(CTX-M-14), and bla(CTX-M-15) genes. A special characteristic was the sequence between ISEcp1 and bla(CTX-M) gene: 48 bp for bla(CTX-M-15) (except 1 E.coli isolate having such a sequence deleted by 3 bp); 127 bp for bla(CTX-M-3); 42 bp for bla(CTX-M-14). Downstream of bla(CTX-M) and bla(CTX-M-15) genes in the major bacterial isolates orf477 mucA and Delta orf477-Delta mucA sequences were detected respectively. Two isolates had additional Delta orf3 insertion inside of Delta orf477-Delta mucA sequence. Insertion sequence IS903 (intact or deleted) was detected downstream of bla(CTX-M-14) gene. Unlike the others, bla(CTX-M-2) and bla(CTX-M-9) genes were located inside of ISCR1 mobile element, downstream of class 1 integron and orf513 sequence.
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Knirel YA, Lindner B, Vinogradov EV, Kocharova NA, Senchenkova SN, Shaikhutdinova RZ, Dentovskaya SV, Fursova NK, Bakhteeva IV, Titareva GM, Balakhonov SV, Holst O, Gremyakova TA, Pier GB, Anisimov AP. Temperature-Dependent Variations and Intraspecies Diversity of the Structure of the Lipopolysaccharide of Yersinia pestis,. Biochemistry 2005; 44:1731-43. [PMID: 15683257 DOI: 10.1021/bi048430f] [Citation(s) in RCA: 115] [Impact Index Per Article: 6.1] [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: 11/28/2022]
Abstract
Yersinia pestis spread throughout the Americas in the early 20th century, and it occurs predominantly as a single clone within this part of the world. However, within Eurasia and parts of Africa there is significant diversity among Y. pestis strains, which can be classified into different biovars (bv.) and/or subspecies (ssp.), with bv. orientalis/ssp. pestis most closely related to the American clone. To determine one aspect of the relatedness of these different Y. pestis isolates, the structure of the lipopolysaccharide (LPS) of four wild-type and one LPS-mutant Eurasian/African strains of Y. pestis was determined, evaluating effects of growth at mammalian (37 degrees C) or flea (25 degrees C) temperatures on the structure and composition of the core oligosaccharide and lipid A. In the wild-type clones of ssp. pestis, a single major core glycoform was synthesized at 37 degrees C whereas multiple core oligosaccharide glycoforms were produced at 25 degrees C. Structural differences occurred primarily in the terminal monosaccharides. Only tetraacyl lipid A was made at 37 degrees C, whereas at 25 degrees C additional pentaacyl and hexaacyl lipid A structures were produced. 4-Amino-4-deoxyarabinose levels in lipid A increased with lower growth temperatures or when bacteria were cultured in the presence of polymyxin B. In Y. pestis ssp. caucasica, the LPS core lacked D-glycero-D-manno-heptose and the content of 4-amino-4-deoxyarabinose showed no dependence on growth temperature, whereas the degree of acylation of the lipid A and the structure of the oligosaccharide core were temperature dependent. A spontaneous deep-rough LPS mutant strain possessed only a disaccharide core and a slightly variant lipid A. The diversity and differences in the structure of the Y. pestis LPS suggest important contributions of these variations to the pathogenesis of this organism, potentially related to innate and acquired immune recognition of Y. pestis and epidemiologic means to detect, classify, control and respond to Y. pestis infections.
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Affiliation(s)
- Yuriy A Knirel
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia
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Gremiakova TA, Fursova NK, Stepanov AV. [Vaccination against typhoid fever: results and perspectives]. Vestn Ross Akad Med Nauk 1997:11-6. [PMID: 9289271] [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: 02/05/2023]
Abstract
The review deals with the world history and the current status of typhoid fever vaccination. It analyzes parenteral and oral killed cellular, oral live attenuated, molecular vaccines are analyzed. The results of field trials of parenteral and oral vaccines in the areas showing different epidemiology and incidence are analyzed. The problems in the designing of molecular typhi vaccines are considered. The results of designing the new generation vaccines S. typhi strains attenuated by means of site-specific mutagenesis and Vi-polysaccharide-protein conjugates are presented.
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Affiliation(s)
- T A Gremiakova
- State Scientific Center of Applied Microbiology, Obolensk
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Fursova NK, Krasil'nikova VM, Gremiakova TA. [Recombinant plasmids carrying yersinia pestis fra-operon: specific features of genetic transmission, inheritance and expression in attenuated enterobacterial cells]. Vestn Ross Akad Med Nauk 1997:44-7. [PMID: 9289280] [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: 02/05/2023]
Abstract
The study was undertaken to study the specific features of transformation of E. coli strains having different R-chemotypes, Y. pestis, S. minnesota R595, and S. typhi Ty21a by plasmids carrying Yersinia pestis Fra-operon which controls the formation of a plague microbe capsular F1 antigen in this microorganism. Calcium transformation was shown to be rather effective for the plasmids constructed on the basis of a cosmid vector (pFS1), rather than those designed by using the Y. pestis plasmid pPst I (pFSK3, pP3). The level of plasmid stability varied and failed to correlate with taxonomy fitting and the chemotype of a recipient strain. The cells of all recombinant strains produced F1 antigen, secreted it into the environment; the synthesis was temperature-regulated. F1 was identified both in the diffuse precipitation and serological tests. The levels of F1 antigen synthesis decreased whereas nutritious requirements for the maintenance of protein synthesis increased for bacterial strains with higher levels of LPS reduction.
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Affiliation(s)
- N K Fursova
- State Scientific Center of Applied Microbiology, Obolensk
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Gremiakova TA, Fomchenkov VM, Fursova NK, Volkovoĭ KI. [Comparative characterization of the physico-chemical properties of lipopolysaccharides of Yersinia pestis and R-mutants of enterobacteria]. Mikrobiologiia 1996; 65:763-7. [PMID: 9102553] [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: 02/04/2023]
Abstract
Electrokinetic potentials (EKP) of the cells of R mutants of Escherichia coli and Salmonella minnesota and cells of Yersinia pestis strains EV (line NIIEG), 358/12 P-, TWJ, Java, and 231 (708) were determined, as well as EKP of lipopolysaccharide (LPS) preparations isolated from these bacteria. The electric characteristics of the cell surfaces of the strains under investigation were demonstrated to correlate with the LPS charge and the reduction extent of their molecules. Acidic hydrolysis of LPS on the cell surface resulted in the leveling of the distinctions in EKP values (their reduction to the same level). EKP values and the size of LPS micelles of the studied Y. pestis strains corresponded to those of the deep R mutants of enterobacteria, while the aggregation extent of the molecules was higher for Y. pestis.
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Anisimov AP, Fomchenkov VM, Fursova NK, Kovalev IN. [Electrokinetic potential of Yersinia pestis and Escherichia coli cells with an intact or defective ycaA gene (caf1M) of the fra-operon of plague pathogen]. Genetika 1994; 30:1160-1165. [PMID: 8001799] [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: 05/22/2023]
Abstract
The dependence of the amount of electrokinetic potential in cells of Escherichia coli and Yersinia pestis, which differ in the rate of reduction of lipopolysaccharide (LPS), on the presence or absence of typical and atypical capsules of Y. pestis, encoded by intact and mutant fra operons, respectively, was studied. The ycaA+ycaF+(caf1 M+caf1+) genotype was shown to be expressed in serological stability of a classical capsular antigen, irrespective of the producer strain, and a decrease in the negative charge of microbial cells compared to their noncapsular variants. Blocking of the synthesis of the product of the ycaA gene of the fra operon resulted in formation of encapsulated bacteria, whose surface electricity and serological characters varied in dependence on the LPS structure. Data obtained support the assumption that a product of the ycA gene stabilizes the conformation of the typical capsule of the plague-causing agent, which was formed from YcaF (Caf1) monomers.
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