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Hurdles for Phage Therapy (PT) to Become a Reality

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ISBN: 9783039213917 9783039213924 Year: Pages: 484 DOI: 10.3390/books978-3-03921-392-4 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Microbiology
Added to DOAB on : 2019-12-09 11:49:15
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Alternative treatment modes for antibiotic-resistant bacterial pathogens have become a public health priority. Bacteriophages are bacterial viruses that infect and lyse bacterial cells. Since bacteriophages are frequently bacterial host species-specific and can often also infect antibiotic-resistant bacterial cells, they could represent ideal antimicrobials for fighting the antibiotic resistance crisis. The medical use of bacteriophages has become known as phage therapy. It is widely used in Russia, where phage cocktails are sold in pharmacies as an over-the-counter drug. However, no phage product has been registered for medical purposes outside of the former Soviet Union. The current Special Issue of Viruses contains a collection of papers from opinion leaders in the field who explore hurdles to the introduction of phage therapy in western countries. The articles cover diverse topics ranging from patent to regulatory issues, the targeting of suitable bacterial infections, and the selection and characterization of safe and efficient phage cocktails. Phage resistance is discussed, and gaps in our knowledge of phage–bacterium interactions in the mammalian body are revealed, while other articles explore the use of phages in food production and processing.

Keywords

Staphylococcus aureus --- bacteriophage --- phage therapy --- vB_SauM-fRuSau02 --- Twortlikevirus --- antibiotic --- antimicrobial resistance --- magistral preparation --- compounding pharmacy --- phage therapy --- regulatory framework --- personalized medicine --- bacteriophage --- phage --- horizontal gene transfer --- co-evolution --- phage therapy --- industrial phage application --- antimicrobial resistance (AMR) --- Germany --- pH stability --- phage-host interactions --- genomics --- antibiotic-resistance --- phage preparation --- lysins --- biofilms --- typhoid fever --- Salmonella Typhi --- extended-spectrum beta lactamases (ESBL) --- Democratic Republic of the Congo --- bacteriophages --- MALDI-MS --- Staphylococcus --- bacteriophages --- phage therapy --- Kayvirus --- Viral proteins --- bacteriophage --- therapy --- phage therapy --- bacterial disease --- infection --- target selection --- Bacteriophage --- phage therapy --- resistance --- adaptation --- prophage --- production --- regulation --- phage therapy --- viral genomes --- best practices --- IND --- high-throughput sequencing --- bacteriophages --- phages --- food safety --- foodborne illness --- phage therapy --- history of science --- science communication --- bacteriophage --- phage therapy --- sustainable agriculture --- zoonosis --- antibiotic resistance --- phage therapy --- experimental therapy --- phage cocktails --- anti-phage antibodies --- prophage --- immunomodulation --- phage therapy --- evolution --- bacterial resistance --- virulence --- Listeria ivanovii --- bacteriophages --- alginate --- production --- disinfection --- phagodisinfection --- virus–host interactions --- bacteriophage efficacy --- gastrointestinal tract --- phage therapy --- bacteriophage --- phage therapy --- antimicrobial resistance --- antibiotic --- global health --- developing countries --- infectious disease --- bacteriophage --- phage --- phage therapy --- phage-resistance --- phage therapy --- bacterial infection --- capsule depolymerase --- antibiotic --- animal model --- bacterial resistance --- bacteriophage --- immunology --- innate immunity --- adaptive immunity --- human host --- phage-human host interaction --- bacterial infection --- antibiotic resistance --- bacteriophage --- antibiotic therapy --- phage therapy --- cases report --- abortive infection --- prophage --- adsorption --- Enterococcus --- rhamnopolysaccharide --- bacteriophage --- phage therapy --- Staphylococcus aureus --- biofilm --- antimicrobial --- frequency of resistance --- phage sensitivity --- resistance management --- nontraditional antibacterial --- bacteriophages --- phage therapy --- antibiotic resistance --- Pseudomonas aeruginosa --- Escherichia coli --- Staphylococcus aureus --- Brussels --- Belgium --- phage biocontrol --- patent landscape --- crop production --- bacteriophage --- phage therapy --- multidrug-resistant bacteria --- antimicrobial resistance --- bacteriophage therapy --- compassionate use --- antibiotic resistance --- phage therapy --- PTMP --- ATMP --- regulatory framework --- pharmaceutical paradigm shift --- clinical trial --- magistral formula --- personalized medicine --- phage therapy --- E. faecalis --- OrthoMCL --- antimicrobial resistance --- capsule --- Galleria mellonella --- Klebsiella pneumoniae --- phage therapy --- n/a --- antimicrobial resistance --- bacteriophage --- personalised medicines --- phage therapy --- pharmaceutical legislation --- regulatory framework

Gram-positive phages: From isolation to application

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889194933 Year: Pages: 120 DOI: 10.3389/978-2-88919-493-3 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Microbiology
Added to DOAB on : 2015-11-16 15:44:59
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Phage biology is one of the most significant and fundamental aspects of biological research and is often used as a platform for model studies relating to more complex biological entities. For this reason, phage biology has enjoyed focused attention and significant advances have been made in the areas of phage genomics, transcriptomics and the development and characterisation of phage-resistance mechanisms. In recent years, considerable research has been performed to increase our understanding of the interactions of these phages with their hosts using genomic, biochemical and structural approaches. Such multidisciplinary approaches are core to developing a full understanding of the processes that govern phage infection, information that may be harnessed to develop anti-phage strategies that may be applied in food fermentations or applied in a positive sense in phage therapy applications. The co-evolutionary processes of these phages and their hosts have also been a considerable focus of research in recent years. Such data has promoted a deeper understanding of the means by which these phages attach to and infect their hosts and permitted the development of effective anti-phage strategies. Furthermore, the presence and activity of host-encoded phage-resistance systems that operate at various stages of the phage cycle and the potential for the application of such systems consolidates the value of research in this area. Conversely, phages and their components have been applied as therapeutic agents against a number of pathogens including, among others, Clostridium difficile, Lactococcus garviae, Mycobacterium spp., Listeria spp. and the possibilities and limitations of these systems will be explored in this topic. Additionally, phage therapeutic approaches have been applied to the prevention of development of food spoilage organisms in the brewing and beverage sectors and exhonorate the positive applications of phages in the industrial setting. This research topic is aimed to address the most current issues as well as the most recent advances in the research of phages infecting Gram-positive bacteria covering areas such as phages in food fermentations, their impact in industry, phage ecology, genomics, evolution, structural analysis, phage-host interactions and the application of phages and components thereof as therapeutic agents against human and animal pathogens.

Virus Ecology and Disturbances: Impact of Environmental Disruption on the Viruses of Microorganisms

Authors: ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889194483 Year: Pages: 94 DOI: 10.3389/978-2-88919-448-3 Language: English
Publisher: Frontiers Media SA
Subject: Microbiology --- Science (General)
Added to DOAB on : 2016-02-05 17:24:33
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Viruses infect numerous microorganisms including, predominantly, Bacteria (bacteriophages or phages) but also Archaea, Protists, and Fungi. They are the most abundant and ubiquitous biological entities on Earth and are important drivers of ecosystem functioning. Little is known, however, about the vast majority of these viruses of microorganisms, or VoMs. Modern techniques such as metagenomics have enabled the discovery and description of more presumptive VoMs than ever before, but also have exposed gaps in our understanding of VoM ecology. Exploring the ecology of these viruses – which is how they interact with host organisms, the abiotic environment, larger organisms, and even other viruses across a variety of environments and conditions – is the next frontier. Integration of a growing molecular understanding of VoMs with ecological studies will expand our knowledge of ecosystem dynamics. Ecology can be studied at multiple levels including individual organisms, populations, communities, whole ecosystems, and the entire biosphere. Ecology additionally can consider normal, equilibrium conditions or instead perturbations. Perturbations are of particular interest because measuring the effect of disturbances on VoM-associated communities provides important windows into how VoMs contribute to ecosystem dynamics. These disturbances in turn can be studied through in vitro, in vivo, and in situ experimentation, measuring responses by VoM-associated communities to changes in nutrient availability, stress, physical disruption, seasonality, etc., and could apply to studies at all ecological levels. These are considered here across diverse systems and environments.

Biotechnological Applications of Phage and Phage-Derived Proteins

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ISBN: 9783039214419 9783039214426 Year: Pages: 236 DOI: 10.3390/books978-3-03921-442-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-12-09 11:49:15
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Phages have shown a high biotechnological potential with numerous applications. The advent of high-resolution microscopy techniques aligned with omic and molecular tools have revealed innovative phage features and enabled new processes that can be further exploited for biotechnological applications in a wide variety of fields. The high-quality original articles and reviews presented in this Special Issue demonstrate the incredible potential of phages and their derived proteins in a wide range of biotechnological applications for human benefit. Considering the emergence of amazing new available bioengineering tools and the high abundance of phages and the multitude of phage proteins yet to be discovered and studied, we believe that the upcoming years will present us with many more fascinating and new previously unimagined phage-based biotechnological applications.

Keywords

gene expression regulation --- molecular probe --- macromolecular interactions --- phage-host interaction --- bacteriophage --- endolysin --- Clostridium perfringens --- alpha-sheet --- cancerous tumors --- capsid dynamics --- drug delivery vehicles --- native gel electrophoresis --- neurodegenerative disease --- pathogenic viruses --- phage display --- landscape phage --- major coat protein --- nanomedicine --- diagnostics --- biosensors --- M13 bacteriophage --- biofilm --- porous structure --- filters --- self-assembly --- T7phage library --- sarcoidosis --- tuberculosis --- microarray --- immunoscreening --- R-type pyocin --- bacteriocin --- contractile injection systems --- Pseudomonas aeruginosa --- X-ray crystallography --- receptor-binding protein --- Shigella flexneri --- bacteriophage --- tailspike proteins --- O-antigen --- serotyping --- microtiter plate assay --- fluorescence sensor --- bacteriophages --- encapsulation --- niosomes --- transfersomes --- liposomes --- Staphylococcus aureus --- phage --- Enterococcus faecalis --- Streptococcus agalactiae --- culture enrichment --- bacteriophage --- diagnostics --- Listeria monocytogenes --- endolysin --- magnetic separation --- reporter phage --- endolysin --- Pal --- Cpl-1 --- safety --- toxicity --- immune response --- Streptococcus pneumoniae --- self-assembly --- nanotubular structures --- tail sheath protein --- bacteriophage vB_EcoM_FV3 --- Appelmans --- bacteriophage evolution --- bacteriophage recombination --- phage therapy --- Pseudomonas aeruginosa --- antibiotic resistance --- bacteriophages --- Myoviridae --- bacteriophage-derived lytic enzyme --- enzybiotics --- endolysin --- in vitro activity --- ESKAPE --- n/a

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