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Podlacha M, Gaffke L, Grabowski Ł, Mantej J, Grabski M, Pierzchalska M, Pierzynowska K, Węgrzyn G, Węgrzyn A. Bacteriophage DNA induces an interrupted immune response during phage therapy in a chicken model. Nat Commun 2024; 15:2274. [PMID: 38480702 PMCID: PMC10937645 DOI: 10.1038/s41467-024-46555-7] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 03/01/2024] [Indexed: 03/17/2024] Open
Abstract
One of the hopes for overcoming the antibiotic resistance crisis is the use of bacteriophages to combat bacterial infections, the so-called phage therapy. This therapeutic approach is generally believed to be safe for humans and animals as phages should infect only prokaryotic cells. Nevertheless, recent studies suggested that bacteriophages might be recognized by eukaryotic cells, inducing specific cellular responses. Here we show that in chickens infected with Salmonella enterica and treated with a phage cocktail, bacteriophages are initially recognized by animal cells as viruses, however, the cGAS-STING pathway (one of two major pathways of the innate antiviral response) is blocked at the stage of the IRF3 transcription factor phosphorylation. This inhibition is due to the inability of RNA polymerase III to recognize phage DNA and to produce dsRNA molecules which are necessary to stimulate a large protein complex indispensable for IRF3 phosphorylation, indicating the mechanism of the antiviral response impairment.
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Affiliation(s)
- Magdalena Podlacha
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308, Gdansk, Poland
| | - Lidia Gaffke
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308, Gdansk, Poland
| | - Łukasz Grabowski
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308, Gdansk, Poland
| | - Jagoda Mantej
- Univentum Labs, Bażyńskiego 4, 80-309, Gdansk, Poland
| | - Michał Grabski
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308, Gdansk, Poland
| | - Małgorzata Pierzchalska
- Department of Biotechnology and General Technology of Foods, Faculty of Food Technology, University of Agriculture, Balicka 122, 30-149, Cracow, Poland
| | - Karolina Pierzynowska
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308, Gdansk, Poland
| | - Grzegorz Węgrzyn
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308, Gdansk, Poland.
| | - Alicja Węgrzyn
- Phage Therapy Center, University Center for Applied and Interdisciplinary Research, University of Gdansk, Kładki 24, 80-822, Gdansk, Poland.
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2
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Stöver H, Dichtl A, Schäffer D, Grabski M. HIV and HCV among drug users and people living in prisons in Germany 2022: WHO elimination targets as reflected in practice. Harm Reduct J 2023; 20:50. [PMID: 37055763 PMCID: PMC10100628 DOI: 10.1186/s12954-023-00774-1] [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: 01/20/2022] [Accepted: 03/20/2023] [Indexed: 04/15/2023] Open
Abstract
People who inject drugs (PWID) and prisoners are considered key populations at risk for human immunodeficiency virus (HIV) and/or Hepatitis C Virus (HCV). In 2016, the Joint United Nations Program on HIV/AIDS (UNAIDS) was implemented to eliminate HIV and AIDS by 2030 and the World Health Organization (WHO) presented the first strategy to eliminate viral hepatitis by 2030 as well. Following the objectives of the WHO and the United Nations, the German Federal Ministry of Health (BMG) presented the first integrated overall strategy for HIV and HCV in 2017. This article discusses the situation of PWID and prisoners in Germany with regard to HIV and HCV five years after the adoption of this strategy, on the basis of available data and against the background of the most recent practice in the field. In order to meet the elimination goals by 2030, Germany will have to improve the situation of PWID and prisoners substantially, mainly through the implementation of evidence-based harm reduction measures as well as the promotion of diagnosis and treatment in prisons and in freedom.
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Affiliation(s)
- H Stöver
- Institute of Addiction Research, Health and Social Work, Frankfurt University of Applied Sciences, Nibelungenplatz 1, 60318, Frankfurt am Main, Germany.
| | - A Dichtl
- Institute of Addiction Research, Health and Social Work, Frankfurt University of Applied Sciences, Nibelungenplatz 1, 60318, Frankfurt am Main, Germany
| | | | - M Grabski
- Institute of Addiction Research, Health and Social Work, Frankfurt University of Applied Sciences, Nibelungenplatz 1, 60318, Frankfurt am Main, Germany
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3
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Konkel R, Grabski M, Cegłowska M, Wieczerzak E, Węgrzyn G, Mazur-Marzec H. Anabaenopeptins from Nostoc edaphicum CCNP1411. Int J Environ Res Public Health 2022; 19:12346. [PMID: 36231642 PMCID: PMC9564503 DOI: 10.3390/ijerph191912346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 09/24/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Cyanobacteria of the Nostoc genus belong to the most prolific sources of bioactive metabolites. In our previous study on Nostoc edaphicum strain CCNP1411, the occurrence of cyanopeptolins and nostocyclopeptides was documented. In the current work, the production of anabaenopeptins (APs) by the strain was studied using genetic and chemical methods. Compatibility between the analysis of the apt gene cluster and the structure of the identified APs was found. Three of the APs, including two new variants, were isolated as pure compounds and tested against four serine proteases and carboxypeptidase A (CPA). The in vitro enzymatic assays showed a typical activity of this class of cyanopeptides, i.e., the most pronounced effects were observed in the case of CPA. The activity of the detected compounds against important metabolic enzymes confirms the pharmaceutical potential of anabaenopeptins.
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Affiliation(s)
- Robert Konkel
- Division of Marine Biotechnology, Institute of Oceanography, University of Gdańsk, M. J. Piłsudskiego 46, PL-81378 Gdynia, Poland
| | - Michał Grabski
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, PL-80308 Gdańsk, Poland
| | - Marta Cegłowska
- Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, PL-81712 Sopot, Poland
| | - Ewa Wieczerzak
- Department of Biomedical Chemistry, Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, PL-80308 Gdańsk, Poland
| | - Grzegorz Węgrzyn
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, PL-80308 Gdańsk, Poland
| | - Hanna Mazur-Marzec
- Division of Marine Biotechnology, Institute of Oceanography, University of Gdańsk, M. J. Piłsudskiego 46, PL-81378 Gdynia, Poland
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Skov Hansen S, Mattei C, Treffenberg Pettersson H, Grabski M. Successful outcome after surgical correction of large colon atresia in a colt foal. EQUINE VET EDUC 2021. [DOI: 10.1111/eve.13364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- S. Skov Hansen
- Equine Clinic University Animal Hospital Swedish University of Agricultural Sciences Uppsala Sweden
| | - C. Mattei
- Imaging Department University Animal Hospital Swedish University of Agricultural Sciences UppsalaSweden
| | - H. Treffenberg Pettersson
- Imaging Department University Animal Hospital Swedish University of Agricultural Sciences UppsalaSweden
| | - M. Grabski
- Equi Vet Serwis Equine Hospital Buk Poland
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5
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Turnau K, Fiałkowska E, Ważny R, Rozpądek P, Tylko G, Bloch S, Nejman-Faleńczyk B, Grabski M, Węgrzyn A, Węgrzyn G. Extraordinary Multi-Organismal Interactions Involving Bacteriophages, Bacteria, Fungi, and Rotifers: Quadruple Microbial Trophic Network in Water Droplets. Int J Mol Sci 2021; 22:ijms22042178. [PMID: 33671687 PMCID: PMC7926626 DOI: 10.3390/ijms22042178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/09/2021] [Accepted: 02/18/2021] [Indexed: 12/01/2022] Open
Abstract
Our observations of predatory fungi trapping rotifers in activated sludge and laboratory culture allowed us to discover a complicated trophic network that includes predatory fungi armed with bacteria and bacteriophages and the rotifers they prey on. Such a network seems to be common in various habitats, although it remains mostly unknown due to its microscopic size. In this study, we isolated and identified fungi and bacteria from activated sludge. We also noticed abundant, virus-like particles in the environment. The fungus developed absorptive hyphae within the prey. The bacteria showed the ability to enter and exit from the hyphae (e.g., from the traps into the caught prey). Our observations indicate that the bacteria and the fungus share nutrients obtained from the rotifer. To narrow the range of bacterial strains isolated from the mycelium, the effects of bacteria supernatants and lysed bacteria were studied. Bacteria isolated from the fungus were capable of immobilizing the rotifer. The strongest negative effect on rotifer mobility was shown by a mixture of Bacillus sp. and Stenotrophomonas maltophilia. The involvement of bacteriophages in rotifer hunting was demonstrated based on molecular analyses and was discussed. The described case seems to be an extraordinary quadruple microbiological puzzle that has not been described and is still far from being understood.
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Affiliation(s)
- Katarzyna Turnau
- Institute of Environmental Sciences, Jagiellonian University in Krakow, Gronostajowa 7, 30-387 Krakow, Poland;
- Correspondence: ; Tel.: +48-506-006-642
| | - Edyta Fiałkowska
- Institute of Environmental Sciences, Jagiellonian University in Krakow, Gronostajowa 7, 30-387 Krakow, Poland;
| | - Rafał Ważny
- Malopolska Centre of Biotechnology, Jagiellonian University in Krakow, Gronostajowa 7a, 30-387 Krakow, Poland; (R.W.); (P.R.)
| | - Piotr Rozpądek
- Malopolska Centre of Biotechnology, Jagiellonian University in Krakow, Gronostajowa 7a, 30-387 Krakow, Poland; (R.W.); (P.R.)
| | - Grzegorz Tylko
- Institute of Zoology and Biomedical Research, Jagiellonian University in Krakow, Gronostajowa 7, 30-387 Krakow, Poland;
| | - Sylwia Bloch
- Laboratory of Phage Therapy, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kladki 24, 80-822 Gdansk, Poland; (S.B.); (A.W.)
| | - Bożena Nejman-Faleńczyk
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (B.N.-F.); (M.G.); (G.W.)
| | - Michał Grabski
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (B.N.-F.); (M.G.); (G.W.)
| | - Alicja Węgrzyn
- Laboratory of Phage Therapy, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kladki 24, 80-822 Gdansk, Poland; (S.B.); (A.W.)
| | - Grzegorz Węgrzyn
- Department of Molecular Biology, Faculty of Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (B.N.-F.); (M.G.); (G.W.)
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6
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Kosznik-Kwaśnicka K, Grabowski Ł, Grabski M, Kaszubski M, Górniak M, Jurczak-Kurek A, Węgrzyn G, Węgrzyn A. Bacteriophages vB_Sen-TO17 and vB_Sen-E22, Newly Isolated Viruses from Chicken Feces, Specific for Several Salmonella enterica Strains. Int J Mol Sci 2020; 21:ijms21228821. [PMID: 33233449 PMCID: PMC7700153 DOI: 10.3390/ijms21228821] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/19/2020] [Accepted: 11/19/2020] [Indexed: 11/16/2022] Open
Abstract
Two newly discovered bacteriophages, isolated from chicken feces and infecting Salmonella enterica strains, are described in this report. These phages have been named vB_Sen-TO17 and vB_Sen-E22, and we present their molecular and functional characterization. Both studied viruses are able to infect several S. enterica strains and develop lytically, but their specific host ranges differ significantly. Electron microscopic analyses of virions have been performed, and full genome sequences were determined and characterized, along with molecular phylogenetic studies. Genomes of vB_Sen-TO17 (ds DNA of 41,658 bp) and vB_Sen-E22 (dsDNA of 108,987 bp) are devoid of homologs of any known or putative gene coding for toxins or any other proteins potentially deleterious for eukaryotic cells. Both phages adsorbed efficiently (>95% adsorbed virions) within 10 min at 42 °C (resembling chicken body temperature) on cells of most tested host strains. Kinetics of lytic development of vB_Sen-TO17 and vB_Sen-E22, determined in one-step growth experiments, indicated that development is complete within 30-40 min at 42 °C, whereas burst sizes vary from 9 to 79 progeny phages per cell for vB_Sen-TO17 and from 18 to 64 for vB_Sen-E22, depending on the host strain. Virions of both phages were relatively stable (from several percent to almost 100% survivability) under various conditions, including acidic and alkaline pH values (from 3 to 12), temperatures from -80 °C to 60 °C, 70% ethanol, chloroform, and 10% DMSO. These characteristics of vB_Sen-TO17 and vB_Sen-E22 indicate that these phages might be considered in further studies on phage therapy, particularly in attempts to eliminate S. enterica from chicken intestine.
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Affiliation(s)
- Katarzyna Kosznik-Kwaśnicka
- Laboratory of Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822 Gdansk, Poland; (K.K.-K.); (Ł.G.)
| | - Łukasz Grabowski
- Laboratory of Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822 Gdansk, Poland; (K.K.-K.); (Ł.G.)
| | - Michał Grabski
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (M.G.); (M.K.); (G.W.)
- Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, 81-712 Sopot, Poland
| | - Mateusz Kaszubski
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (M.G.); (M.K.); (G.W.)
| | - Marcin Górniak
- Department of Molecular Evolution, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (M.G.); (A.J.-K.)
| | - Agata Jurczak-Kurek
- Department of Molecular Evolution, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (M.G.); (A.J.-K.)
| | - Grzegorz Węgrzyn
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (M.G.); (M.K.); (G.W.)
| | - Alicja Węgrzyn
- Laboratory of Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822 Gdansk, Poland; (K.K.-K.); (Ł.G.)
- Correspondence: ; Tel.: +48-58-523-6024
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7
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Topka-Bielecka G, Bloch S, Nejman-Faleńczyk B, Grabski M, Jurczak-Kurek A, Górniak M, Dydecka A, Necel A, Węgrzyn G, Węgrzyn A. Characterization of the Bacteriophage vB_EfaS-271 Infecting Enterococcus faecalis. Int J Mol Sci 2020; 21:ijms21176345. [PMID: 32882938 PMCID: PMC7503890 DOI: 10.3390/ijms21176345] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 12/11/2022] Open
Abstract
A newly isolated bacteriophage infecting Enterococcus faecalis strains has been characterized, including determination of its molecular features. This phage, named vB_EfaS-271, has been classified as a Siphoviridae member, according to electron microscopy characterization of the virions, composed of a 50 nm-diameter head and a long, flexible, noncontractable tail (219 × 12.5 nm). Analysis of the whole dsDNA genome of this phage showed that it consists of 40,197 bp and functional modules containing genes coding for proteins that are involved in DNA replication (including DNA polymerase/primase), morphogenesis, packaging and cell lysis. Mass spectrometry analysis allowed us to identify several phage-encoded proteins. vB_EfaS-271 reveals a relatively narrow host range, as it is able to infect only a few E. faecalis strains. On the other hand, it is a virulent phage (unable to lysogenize host cells), effectively and quickly destroying cultures of sensitive host bacteria, with a latent period as short as 8 min and burst size of approximately 70 phages per cell at 37 °C. This phage was also able to destroy biofilms formed by E. faecalis. These results contribute to our understanding of the biodiversity of bacteriophages, confirming the high variability among these viruses and indicating specific genetic and functional features of vB_EfaS-271.
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Affiliation(s)
- Gracja Topka-Bielecka
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (G.T.-B.); (B.N.-F.); (M.G.); (A.D.); (A.N.); (G.W.)
| | - Sylwia Bloch
- Laboratory of Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822 Gdansk, Poland;
| | - Bożena Nejman-Faleńczyk
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (G.T.-B.); (B.N.-F.); (M.G.); (A.D.); (A.N.); (G.W.)
| | - Michał Grabski
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (G.T.-B.); (B.N.-F.); (M.G.); (A.D.); (A.N.); (G.W.)
- Laboratory of Marine Biogeochemistry, Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, 81-712 Sopot, Poland
| | - Agata Jurczak-Kurek
- Department of Molecular Evolution, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (A.J.-K.); (M.G.)
| | - Marcin Górniak
- Department of Molecular Evolution, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (A.J.-K.); (M.G.)
| | - Aleksandra Dydecka
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (G.T.-B.); (B.N.-F.); (M.G.); (A.D.); (A.N.); (G.W.)
| | - Agnieszka Necel
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (G.T.-B.); (B.N.-F.); (M.G.); (A.D.); (A.N.); (G.W.)
| | - Grzegorz Węgrzyn
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (G.T.-B.); (B.N.-F.); (M.G.); (A.D.); (A.N.); (G.W.)
| | - Alicja Węgrzyn
- Laboratory of Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822 Gdansk, Poland;
- Correspondence: ; Tel.: +48-58-523-6040
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Fidor A, Grabski M, Gawor J, Gromadka R, Węgrzyn G, Mazur-Marzec H. Nostoc edaphicum CCNP1411 from the Baltic Sea-A New Producer of Nostocyclopeptides. Mar Drugs 2020; 18:E442. [PMID: 32858999 PMCID: PMC7551626 DOI: 10.3390/md18090442] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/21/2020] [Accepted: 08/25/2020] [Indexed: 12/17/2022] Open
Abstract
Nostocyclopeptides (Ncps) constitute a small class of nonribosomal peptides, exclusively produced by cyanobacteria of the genus Nostoc. The peptides inhibit the organic anion transporters, OATP1B3 and OATP1B1, and prevent the transport of the toxic microcystins and nodularin into hepatocytes. So far, only three structural analogues, Ncp-A1, Ncp-A2 and Ncp-M1, and their linear forms were identified in Nostoc strains as naturally produced cyanometabolites. In the current work, the whole genome sequence of the new Ncps producer, N. edaphicum CCNP1411 from the Baltic Sea, has been determined. The genome consists of the circular chromosome (7,733,505 bps) and five circular plasmids (from 44.5 kb to 264.8 kb). The nostocyclopeptide biosynthetic gene cluster (located between positions 7,609,981-7,643,289 bps of the chromosome) has been identified and characterized in silico. The LC-MS/MS analyzes of N. edaphicum CCNP1411 cell extracts prepared in aqueous methanol revealed several products of the genes. Besides the known peptides, Ncp-A1 and Ncp-A2, six other compounds putatively characterized as new noctocyclopeptide analogues were detected. This includes Ncp-E1 and E2 and their linear forms (Ncp-E1-L and E2-L), a cyclic Ncp-E3 and a linear Ncp-E4-L. Regardless of the extraction conditions, the cell contents of the linear nostocyclopeptides were found to be higher than the cyclic ones, suggesting a slow rate of the macrocyclization process.
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Affiliation(s)
- Anna Fidor
- Division of Marine Biotechnology, Faculty of Oceanography and Geography, University of Gdańsk, Marszałka J. Piłsudskiego 46, PL-81378 Gdynia, Poland;
| | - Michał Grabski
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (M.G.); (G.W.)
| | - Jan Gawor
- DNA Sequencing and Oligonucleotide Synthesis Laboratory, Polish Academy of Sciences, Institute of Biochemistry and Biophysics, 02-106 Warsaw, Poland; (J.G.); (R.G.)
| | - Robert Gromadka
- DNA Sequencing and Oligonucleotide Synthesis Laboratory, Polish Academy of Sciences, Institute of Biochemistry and Biophysics, 02-106 Warsaw, Poland; (J.G.); (R.G.)
| | - Grzegorz Węgrzyn
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (M.G.); (G.W.)
| | - Hanna Mazur-Marzec
- Division of Marine Biotechnology, Faculty of Oceanography and Geography, University of Gdańsk, Marszałka J. Piłsudskiego 46, PL-81378 Gdynia, Poland;
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9
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Kosznik-Kwaśnicka K, Ciemińska K, Grabski M, Grabowski Ł, Górniak M, Jurczak-Kurek A, Węgrzyn G, Węgrzyn A. Characteristics of a Series of Three Bacteriophages Infecting Salmonella enterica Strains. Int J Mol Sci 2020; 21:ijms21176152. [PMID: 32858954 PMCID: PMC7503781 DOI: 10.3390/ijms21176152] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/18/2020] [Accepted: 08/25/2020] [Indexed: 01/07/2023] Open
Abstract
Molecular and functional characterization of a series of three bacteriophages, vB_SenM-1, vB_SenM-2, and vB_SenS-3, infecting various Salmonella enterica serovars and strains is presented. All these phages were able to develop lytically while not forming prophages. Moreover, they were able to survive at pH 3. The phages revealed different host ranges within serovars and strains of S. enterica, different adsorption rates on host cells, and different lytic growth kinetics at various temperatures (in the range of 25 to 42 °C). They efficiently reduced the number of cells in the bacterial biofilm and decreased the biofilm mass. Whole genome sequences of these phages have been determined and analyzed, including their phylogenetic relationships. In conclusion, we have demonstrated detailed characterization of a series of three bacteriophages, vB_SenM-1, vB_SenM-2, and vB_SenS-3, which reveal favorable features in light of their potential use in phage therapy of humans and animals, as well as for food protection purposes.
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Affiliation(s)
- Katarzyna Kosznik-Kwaśnicka
- Laboratory of Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822 Gdansk, Poland; (K.K.-K.); (Ł.G.)
| | - Karolina Ciemińska
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (K.C.); (M.G.); (G.W.)
| | - Michał Grabski
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (K.C.); (M.G.); (G.W.)
- Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, 81-712 Sopot, Poland
| | - Łukasz Grabowski
- Laboratory of Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822 Gdansk, Poland; (K.K.-K.); (Ł.G.)
| | - Marcin Górniak
- Department of Molecular Evolution, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (M.G.); (A.J.-K.)
| | - Agata Jurczak-Kurek
- Department of Molecular Evolution, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (M.G.); (A.J.-K.)
| | - Grzegorz Węgrzyn
- Department of Molecular Biology, University of Gdansk, Wita Stwosza 59, 80-308 Gdansk, Poland; (K.C.); (M.G.); (G.W.)
| | - Alicja Węgrzyn
- Laboratory of Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822 Gdansk, Poland; (K.K.-K.); (Ł.G.)
- Correspondence: ; Tel.: +48-58-523-6024
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10
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Necel A, Bloch S, Nejman-Faleńczyk B, Grabski M, Topka G, Dydecka A, Kosznik-Kwaśnicka K, Grabowski Ł, Jurczak-Kurek A, Wołkowicz T, Węgrzyn G, Węgrzyn A. Characterization of a bacteriophage, vB_Eco4M-7, that effectively infects many Escherichia coli O157 strains. Sci Rep 2020; 10:3743. [PMID: 32111934 PMCID: PMC7048862 DOI: 10.1038/s41598-020-60568-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 02/13/2020] [Indexed: 11/24/2022] Open
Abstract
The characterization of a recently isolated bacteriophage, vB_Eco4M-7, which effectively infects many, though not all, Escherichia coli O157 strains, is presented. The genome of this phage comprises double-stranded DNA, 68,084 bp in length, with a GC content of 46.2%. It contains 96 putative open reading frames (ORFs). Among them, the putative functions of only 35 ORFs were predicted (36.5%), whereas 61 ORFs (63.5%) were classified as hypothetical proteins. The genome of phage vB_Eco4M-7 does not contain genes coding for integrase, recombinase, repressors or excisionase, which are the main markers of temperate viruses. Therefore, we conclude that phage vB_Eco4M-7 should be considered a lytic virus. This was confirmed by monitoring phage lytic development by a one-step growth experiment. Moreover, the phage forms relatively small uniform plaques (1 mm diameter) with no properties of lysogenization. Electron microscopic analyses indicated that vB_Eco4M-7 belongs to the Myoviridae family. Based on mass spectrometric analyses, including the fragmentation pattern of unique peptides, 33 phage vB_Eco4M-7 proteins were assigned to annotated open reading frames. Importantly, genome analysis suggested that this E. coli phage is free of toxins and other virulence factors. In addition, a similar, previously reported but uncharacterized bacteriophage, ECML-117, was also investigated, and this phage exhibited properties similar to vB_Eco4M-7. Our results indicate that both studied phages are potential candidates for phage therapy and/or food protection against Shiga toxin-producing E. coli, as the majority of these strains belong to the O157 serotype.
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Affiliation(s)
- Agnieszka Necel
- Department of Molecular Biology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308, Gdańsk, Poland
| | - Sylwia Bloch
- Laboratory of Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822, Gdańsk, Poland
| | - Bożena Nejman-Faleńczyk
- Department of Molecular Biology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308, Gdańsk, Poland
| | - Michał Grabski
- Department of Molecular Biology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308, Gdańsk, Poland
| | - Gracja Topka
- Department of Molecular Biology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308, Gdańsk, Poland
| | - Aleksandra Dydecka
- Department of Molecular Biology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308, Gdańsk, Poland
| | - Katarzyna Kosznik-Kwaśnicka
- Laboratory of Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822, Gdańsk, Poland
| | - Łukasz Grabowski
- Laboratory of Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822, Gdańsk, Poland
| | - Agata Jurczak-Kurek
- Department of Molecular Evolution, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308, Gdańsk, Poland
| | - Tomasz Wołkowicz
- Department of Bacteriology and Biocontamination Control, National Institute of Public Health-National Institute of Hygiene, Chocimska 24, 00-791, Warsaw, Poland
| | - Grzegorz Węgrzyn
- Department of Molecular Biology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308, Gdańsk, Poland
| | - Alicja Węgrzyn
- Laboratory of Molecular Biology, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Kładki 24, 80-822, Gdańsk, Poland.
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11
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Węgrzyn G, Pierzynowska K, Podlacha M, Brokowska J, Gaffke L, Mantej J, Cyske Z, Rintz E, Osiadły M, Bartkowski M, Puchalski M, Grabski M, Pierzynowski M, Pankanin D, Piotrowska E, Tukaj S. [Molecular mechanisms of genistein action in the light of therapies for genetic and immunological diseases]. Postepy Biochem 2018; 64:262-276. [PMID: 30656911 DOI: 10.18388/pb.2018_140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 06/07/2018] [Indexed: 11/10/2022]
Abstract
Genetic and immunological diseases, despite many attempts to develop effective treatments, still remain a great challenge for medicine. Current therapies of these diseases consist of pharmacological alleviation of symptoms, rehabilitation and psychological help which, although very important, are not sufficient. Therefore, searching for new therapeutics which could remove the major causes of these diseases is of particular importance for the society. Natural compounds reveal many biological activities which makes them candidates for drugs in such diseases. One of them is genistein, a compound from the group of flavonoids. As it affects multiple processes, genistein has become in the center of interest of many scientists working on diseases of various etiology, course and inheritance. It was used in experimental therapies of some genetic diseases (Huntington's disease, amyotrophic lateral sclerosis Parkinson disease, cystic fibrosis), as well as autoimmunological diseases and allergies. Clinical trials with the use of genistein in treatment of patients suffering from Alzheimer's diseases and mucopolysaccharidosis type III are ongoing. The employment of differential properties of genistein in attempts to treat each of these diseases is of special interest. In this review, detailed molecular mechanisms of genistein action are summarized in the light of therapies of the above mentioned genetic and immunological diseases, including description of therapeutic potentials of each activity of this isoflavone, efficiency of its action, and its potential use as a drug in the future.
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Affiliation(s)
- Grzegorz Węgrzyn
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | | | - Magdalena Podlacha
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Joanna Brokowska
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Lidia Gaffke
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Jagoda Mantej
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Zuzanna Cyske
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Estera Rintz
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Marta Osiadły
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Michał Bartkowski
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Michał Puchalski
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Michał Grabski
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Michał Pierzynowski
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Dominika Pankanin
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Ewa Piotrowska
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
| | - Stefan Tukaj
- Katedra Biologii Molekularnej, Wydział Biologii, Uniwersytet Gdański, Gdańsk
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12
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Hindocha C, Freeman TP, Grabski M, Crudgington H, Davies AC, Stroud JB, Das RK, Lawn W, Morgan CJA, Curran HV. The effects of cannabidiol on impulsivity and memory during abstinence in cigarette dependent smokers. Sci Rep 2018; 8:7568. [PMID: 29765102 PMCID: PMC5954148 DOI: 10.1038/s41598-018-25846-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 04/30/2018] [Indexed: 02/03/2023] Open
Abstract
Acute nicotine abstinence in cigarette smokers results in deficits in performance on specific cognitive processes, including working memory and impulsivity which are important in relapse. Cannabidiol (CBD), the non-intoxicating cannabinoid found in cannabis, has shown pro-cognitive effects and preliminary evidence has indicated it can reduce the number of cigarettes smoked in dependent smokers. However, the effects of CBD on cognition have never been tested during acute nicotine withdrawal. The present study therefore aimed to investigate if CBD can improve memory and reduce impulsivity during acute tobacco abstinence. Thirty, non-treatment seeking, dependent, cigarette smokers attended two laboratory-based sessions after overnight abstinence, in which they received either 800 mg oral CBD or placebo (PBO), in a randomised order. Abstinence was biologically verified. Participants were assessed on go/no-go, delay discounting, prose recall and N-back (0-back, 1-back, 2-back) tasks. The effects of CBD on delay discounting, prose recall and the N-back (correct responses, maintenance or manipulation) were null, confirmed by a Bayesian analysis, which found evidence for the null hypothesis. Contrary to our predictions, CBD increased commission errors on the go/no-go task. In conclusion, a single 800 mg dose of CBD does not improve verbal or spatial working memory, or impulsivity during tobacco abstinence.
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Affiliation(s)
- C Hindocha
- Clinical Psychopharmacology Unit, University College London, WC1E 7HB, London, United Kingdom.
| | - T P Freeman
- Clinical Psychopharmacology Unit, University College London, WC1E 7HB, London, United Kingdom.,National Addiction Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8BB, United Kingdom
| | - M Grabski
- Clinical Psychopharmacology Unit, University College London, WC1E 7HB, London, United Kingdom.,School of Experimental Psychology, University of Bristol, 12a Priory Road, BS81TU, Bristol, United Kingdom
| | - H Crudgington
- Clinical Psychopharmacology Unit, University College London, WC1E 7HB, London, United Kingdom
| | - A C Davies
- Clinical Psychopharmacology Unit, University College London, WC1E 7HB, London, United Kingdom
| | | | - R K Das
- Clinical Psychopharmacology Unit, University College London, WC1E 7HB, London, United Kingdom
| | - W Lawn
- Clinical Psychopharmacology Unit, University College London, WC1E 7HB, London, United Kingdom
| | - C J A Morgan
- Clinical Psychopharmacology Unit, University College London, WC1E 7HB, London, United Kingdom.,Psychopharmacology and Addiction Research Centre, University of Exeter, Devon, UK
| | - H V Curran
- Clinical Psychopharmacology Unit, University College London, WC1E 7HB, London, United Kingdom
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Grabski M, Fews D, Busschers E. Hindlimb lameness associated with a focal osseous metaplasia in an 18-year-old Welsh Section D mare. EQUINE VET EDUC 2017. [DOI: 10.1111/eve.12413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- M. Grabski
- Department of Clinical Veterinary Sciences; University of Bristol; Bristol UK
| | - D. Fews
- Department of Veterinary Pathology, Infection and Immunity; School of Veterinary Sciences; University of Bristol; Bristol UK
| | - E. Busschers
- Department of Clinical Veterinary Sciences; University of Bristol; Bristol UK
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Abstract
In the first part of a two-part study we attempted to determine whether individuals consider novel foods (in comparison to familiar foods) to be dangerous and expect to dislike their tastes, and, if so, whether willingness to eat them is systematically related to the degree of perceived danger and expected disliking. A series of multiple regression analyses revealed that disliking and danger are both good predictors of willingness to try novel foods while willingness to try familiar foods is predicted only by disliking. In the second part of the study we examined experimentally the effect of "forced" exposure to novel foods on subsequent neophobia. Some subjects were required to taste seven novel foods while others tasted seven similar familiar foods; all subjects were then given the task of selecting for tasting one member of each of 11 pairs of foods. The pairs were comprised of one novel and one familiar food (different from those used in the exposure to novelty manipulation), and number of novel choices was the measure of neophobia (with fewer choices indicative of greater neophobia). The results were discussed in terms of the usefulness of considering food neophobia as a phobia in the sense in which clinical psychologists use the term.
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Affiliation(s)
- P Pliner
- Department of Psychology, Erindale College, University of Toronto, Mississauga, Ontario, Canada
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