Anti-herpes simplex virus 1 and immunomodulatory activities of a poly-γ- glutamic acid from Bacillus horneckiae strain APA of shallow vent origin

Herpes simplex virus type 1 (HSV-1) is responsible of common and widespread viral infections in humans through the world, and of rare, but extremely severe, clinical syndromes in the central nervous system. The emergence of resistant strains to drugs actually in use encourages the searching for nove...

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Veröffentlicht in:Applied microbiology and biotechnology 2017-10, Vol.101 (20), p.7487-7496
Hauptverfasser: Marino-Merlo, Francesca, Papaianni, Emanuela, Maugeri, Teresa L., Zammuto, Vincenzo, Spanò, Antonio, Nicolaus, Barbara, Poli, Annarita, Di Donato, Paola, Mosca, Claudia, Mastino, Antonio, Gugliandolo, Concetta
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container_issue 20
container_start_page 7487
container_title Applied microbiology and biotechnology
container_volume 101
creator Marino-Merlo, Francesca
Papaianni, Emanuela
Maugeri, Teresa L.
Zammuto, Vincenzo
Spanò, Antonio
Nicolaus, Barbara
Poli, Annarita
Di Donato, Paola
Mosca, Claudia
Mastino, Antonio
Gugliandolo, Concetta
description Herpes simplex virus type 1 (HSV-1) is responsible of common and widespread viral infections in humans through the world, and of rare, but extremely severe, clinical syndromes in the central nervous system. The emergence of resistant strains to drugs actually in use encourages the searching for novel antiviral compounds, including those of natural origin. In this study, the recently described poly-γ-glutamic acid (γ-PGA-APA), produced by the marine thermotolerant Bacillus horneckiae strain APA, and previously shown to possess biological and antiviral activity, was evaluated for its anti-HSV-1 and immunomodulatory properties. The biopolymer hindered the HSV-1 infection in the very early phase of virus replication. In addition, the γ-PGA-APA was shown to exert low cytotoxicity and noticeable immunomodulatory activities towards TNF-α and IL-1β gene expression. Moreover, the capacity to positively modulate the transcriptional activity of the cytokine genes was paired with increased level of activation of the transcription factor NF-kB by γ-PGA-APA. Overall, as non-cytotoxic biopolymer able to contribute in the antiviral defense against HSV-1, γ-PGA-APA could lead to the development of novel natural drugs for alternative therapies.
doi_str_mv 10.1007/s00253-017-8472-5
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The emergence of resistant strains to drugs actually in use encourages the searching for novel antiviral compounds, including those of natural origin. In this study, the recently described poly-γ-glutamic acid (γ-PGA-APA), produced by the marine thermotolerant Bacillus horneckiae strain APA, and previously shown to possess biological and antiviral activity, was evaluated for its anti-HSV-1 and immunomodulatory properties. The biopolymer hindered the HSV-1 infection in the very early phase of virus replication. In addition, the γ-PGA-APA was shown to exert low cytotoxicity and noticeable immunomodulatory activities towards TNF-α and IL-1β gene expression. Moreover, the capacity to positively modulate the transcriptional activity of the cytokine genes was paired with increased level of activation of the transcription factor NF-kB by γ-PGA-APA. 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subjects Antiviral activity
Antiviral agents
Antiviral Agents - isolation & purification
Antiviral Agents - pharmacology
Bacillus
Bacillus - isolation & purification
Bacillus - metabolism
Biological activity
Biomedical and Life Sciences
Biopolymers
Biotechnological Products and Process Engineering
Biotechnology
Central nervous system
Cytokines - biosynthesis
Cytotoxicity
Drug development
Gene expression
Gene Expression - drug effects
Glutamic acid
Herpes simplex
Herpes viruses
Herpesvirus 1, Human - drug effects
Herpesvirus 1, Human - physiology
IL-1β
Immunologic Factors - isolation & purification
Immunologic Factors - pharmacology
Immunomodulation
Life Sciences
Microbial Genetics and Genomics
Microbiology
NF-kappa B - metabolism
NF-κB protein
poly-γ-Glutamic acid
Polyglutamic Acid - analogs & derivatives
Polyglutamic Acid - isolation & purification
Polyglutamic Acid - pharmacology
Toxicity
Transcription activation
Transcription, Genetic - drug effects
Tumor necrosis factor
Virus Replication - drug effects
Viruses
title Anti-herpes simplex virus 1 and immunomodulatory activities of a poly-γ- glutamic acid from Bacillus horneckiae strain APA of shallow vent origin
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