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In vitro antiviral activity of hypothiocyanite against A/H1N1/2009 pandemic influenza virus

Identifieur interne : 000145 ( PascalFrancis/Corpus ); précédent : 000144; suivant : 000146

In vitro antiviral activity of hypothiocyanite against A/H1N1/2009 pandemic influenza virus

Auteurs : L. Cegolon ; C. Salata ; E. Piccoli ; V. Juarez ; G. Palu' ; G. Mastrangelo ; A. Calistri

Source :

RBID : Pascal:14-0075821

Descripteurs français

English descriptors

Abstract

Influenza virus spreads via small particle aerosols, droplets and fomites, and since it can survive for a short time on surfaces, can be introduced into the nasal mucosa before it loses infectivity. The hypothiocyanite ion (OSCN-), product of the lactoperoxidase/H2O2/SCN- system of central airways, is emerging as an important molecule for innate defense mechanism against bacteria, fungi and viruses. Here we demonstrated that OSCN- displays virucidal activity in vitro against the A/H1N1 2009 pandemic influenza virus. The concentration required to inhibit viral replication by 50% was 2 μM when virus were challenged directly with OSCN- before cell inoculation. These values were even lower when inoculated cells were maintained in contact with enzyme free-OSCN- in the culture medium. The last experimental conditions better reflect those of tracheobronchial mucosa, where HOSCN/OSCN- is retained in the air-liquid interface and inactivates both the viruses approaching the epithelium from outside and those released from the inoculated cells after the replication cycle. Importantly no OSCN- cytotoxicity was observed in the cellular system employed. The lack of toxicity in humans and the absence of damage on surfaces of fomites suggest a potential use of OSCN- to avoid mucosal and environmental transmission of influenza virus. Since hypothiocyanite is normally present in human airways a low risk of viral resistance is envisaged. In vivo confirmatory studies are needed to evaluate the appropriate dose, regimen and formulation.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A08 01  1  ENG  @1 In vitro antiviral activity of hypothiocyanite against A/H1N1/2009 pandemic influenza virus
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A11 02  1    @1 SALATA (C.)
A11 03  1    @1 PICCOLI (E.)
A11 04  1    @1 JUAREZ (V.)
A11 05  1    @1 PALU' (G.)
A11 06  1    @1 MASTRANGELO (G.)
A11 07  1    @1 CALISTRI (A.)
A14 01      @1 Padua University, Department of Molecular Medicine @2 Padua @3 ITA @Z 1 aut. @Z 2 aut. @Z 3 aut. @Z 5 aut. @Z 6 aut. @Z 7 aut.
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C01 01    ENG  @0 Influenza virus spreads via small particle aerosols, droplets and fomites, and since it can survive for a short time on surfaces, can be introduced into the nasal mucosa before it loses infectivity. The hypothiocyanite ion (OSCN-), product of the lactoperoxidase/H2O2/SCN- system of central airways, is emerging as an important molecule for innate defense mechanism against bacteria, fungi and viruses. Here we demonstrated that OSCN- displays virucidal activity in vitro against the A/H1N1 2009 pandemic influenza virus. The concentration required to inhibit viral replication by 50% was 2 μM when virus were challenged directly with OSCN- before cell inoculation. These values were even lower when inoculated cells were maintained in contact with enzyme free-OSCN- in the culture medium. The last experimental conditions better reflect those of tracheobronchial mucosa, where HOSCN/OSCN- is retained in the air-liquid interface and inactivates both the viruses approaching the epithelium from outside and those released from the inoculated cells after the replication cycle. Importantly no OSCN- cytotoxicity was observed in the cellular system employed. The lack of toxicity in humans and the absence of damage on surfaces of fomites suggest a potential use of OSCN- to avoid mucosal and environmental transmission of influenza virus. Since hypothiocyanite is normally present in human airways a low risk of viral resistance is envisaged. In vivo confirmatory studies are needed to evaluate the appropriate dose, regimen and formulation.
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Format Inist (serveur)

NO : PASCAL 14-0075821 INIST
ET : In vitro antiviral activity of hypothiocyanite against A/H1N1/2009 pandemic influenza virus
AU : CEGOLON (L.); SALATA (C.); PICCOLI (E.); JUAREZ (V.); PALU' (G.); MASTRANGELO (G.); CALISTRI (A.)
AF : Padua University, Department of Molecular Medicine/Padua/Italie (1 aut., 2 aut., 3 aut., 5 aut., 6 aut., 7 aut.); Imperial College London, School of Public Health, St. Mary's Campus/London/Royaume-Uni (1 aut.); Alaxia SAS/Lyon/France (4 aut.)
DT : Publication en série; Niveau analytique
SO : International journal of hygiene and environmental health; ISSN 1438-4639; Allemagne; Da. 2014; Vol. 217; No. 1; Pp. 17-22; Bibl. 3/4 p.
LA : Anglais
EA : Influenza virus spreads via small particle aerosols, droplets and fomites, and since it can survive for a short time on surfaces, can be introduced into the nasal mucosa before it loses infectivity. The hypothiocyanite ion (OSCN-), product of the lactoperoxidase/H2O2/SCN- system of central airways, is emerging as an important molecule for innate defense mechanism against bacteria, fungi and viruses. Here we demonstrated that OSCN- displays virucidal activity in vitro against the A/H1N1 2009 pandemic influenza virus. The concentration required to inhibit viral replication by 50% was 2 μM when virus were challenged directly with OSCN- before cell inoculation. These values were even lower when inoculated cells were maintained in contact with enzyme free-OSCN- in the culture medium. The last experimental conditions better reflect those of tracheobronchial mucosa, where HOSCN/OSCN- is retained in the air-liquid interface and inactivates both the viruses approaching the epithelium from outside and those released from the inoculated cells after the replication cycle. Importantly no OSCN- cytotoxicity was observed in the cellular system employed. The lack of toxicity in humans and the absence of damage on surfaces of fomites suggest a potential use of OSCN- to avoid mucosal and environmental transmission of influenza virus. Since hypothiocyanite is normally present in human airways a low risk of viral resistance is envisaged. In vivo confirmatory studies are needed to evaluate the appropriate dose, regimen and formulation.
CC : 002B03; 002B30A02A; 002B02S05
FD : Infection; Activité biologique; In vitro; Antiviral; 2009; Santé publique; Influenzavirus; Prévention; Traitement; Contrôle; Désinfection; Santé et environnement; Médecine environnementale; Pandémie; Grippe H1N1
FG : Orthomyxoviridae; Virus; Pathologie de l'appareil respiratoire; Virose
ED : Infection; Biological activity; In vitro; Antiviral; 2009; Public health; Influenzavirus; Prevention; Treatment; Check; Disinfection; Health and environment; Environmental medicine; H1N1 influenza
EG : Orthomyxoviridae; Virus; Respiratory disease; Viral disease
SD : Infección; Actividad biológica; In vitro; Antiviral; 2009; Salud pública; Influenzavirus; Prevención; Tratamiento; Control; Desinfección; Salud y medio ambiente; Medicina ambiental; Gripe H1N1
LO : INIST-7500.354000505792760030
ID : 14-0075821

Links to Exploration step

Pascal:14-0075821

Le document en format XML

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<term>Environmental medicine</term>
<term>H1N1 influenza</term>
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<div type="abstract" xml:lang="en">Influenza virus spreads via small particle aerosols, droplets and fomites, and since it can survive for a short time on surfaces, can be introduced into the nasal mucosa before it loses infectivity. The hypothiocyanite ion (OSCN
<sup>-</sup>
), product of the lactoperoxidase/H
<sub>2</sub>
O
<sub>2/</sub>
SCN
<sup>-</sup>
system of central airways, is emerging as an important molecule for innate defense mechanism against bacteria, fungi and viruses. Here we demonstrated that OSCN
<sup>-</sup>
displays virucidal activity in vitro against the A/H1N1 2009 pandemic influenza virus. The concentration required to inhibit viral replication by 50% was 2 μM when virus were challenged directly with OSCN
<sup>-</sup>
before cell inoculation. These values were even lower when inoculated cells were maintained in contact with enzyme free-OSCN
<sup>-</sup>
in the culture medium. The last experimental conditions better reflect those of tracheobronchial mucosa, where HOSCN/OSCN
<sup>-</sup>
is retained in the air-liquid interface and inactivates both the viruses approaching the epithelium from outside and those released from the inoculated cells after the replication cycle. Importantly no OSCN
<sup>-</sup>
cytotoxicity was observed in the cellular system employed. The lack of toxicity in humans and the absence of damage on surfaces of fomites suggest a potential use of OSCN
<sup>-</sup>
to avoid mucosal and environmental transmission of influenza virus. Since hypothiocyanite is normally present in human airways a low risk of viral resistance is envisaged. In vivo confirmatory studies are needed to evaluate the appropriate dose, regimen and formulation.</div>
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O
<sub>2/</sub>
SCN
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system of central airways, is emerging as an important molecule for innate defense mechanism against bacteria, fungi and viruses. Here we demonstrated that OSCN
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<sup>-</sup>
before cell inoculation. These values were even lower when inoculated cells were maintained in contact with enzyme free-OSCN
<sup>-</sup>
in the culture medium. The last experimental conditions better reflect those of tracheobronchial mucosa, where HOSCN/OSCN
<sup>-</sup>
is retained in the air-liquid interface and inactivates both the viruses approaching the epithelium from outside and those released from the inoculated cells after the replication cycle. Importantly no OSCN
<sup>-</sup>
cytotoxicity was observed in the cellular system employed. The lack of toxicity in humans and the absence of damage on surfaces of fomites suggest a potential use of OSCN
<sup>-</sup>
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<NO>PASCAL 14-0075821 INIST</NO>
<ET>In vitro antiviral activity of hypothiocyanite against A/H1N1/2009 pandemic influenza virus</ET>
<AU>CEGOLON (L.); SALATA (C.); PICCOLI (E.); JUAREZ (V.); PALU' (G.); MASTRANGELO (G.); CALISTRI (A.)</AU>
<AF>Padua University, Department of Molecular Medicine/Padua/Italie (1 aut., 2 aut., 3 aut., 5 aut., 6 aut., 7 aut.); Imperial College London, School of Public Health, St. Mary's Campus/London/Royaume-Uni (1 aut.); Alaxia SAS/Lyon/France (4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>International journal of hygiene and environmental health; ISSN 1438-4639; Allemagne; Da. 2014; Vol. 217; No. 1; Pp. 17-22; Bibl. 3/4 p.</SO>
<LA>Anglais</LA>
<EA>Influenza virus spreads via small particle aerosols, droplets and fomites, and since it can survive for a short time on surfaces, can be introduced into the nasal mucosa before it loses infectivity. The hypothiocyanite ion (OSCN
<sup>-</sup>
), product of the lactoperoxidase/H
<sub>2</sub>
O
<sub>2/</sub>
SCN
<sup>-</sup>
system of central airways, is emerging as an important molecule for innate defense mechanism against bacteria, fungi and viruses. Here we demonstrated that OSCN
<sup>-</sup>
displays virucidal activity in vitro against the A/H1N1 2009 pandemic influenza virus. The concentration required to inhibit viral replication by 50% was 2 μM when virus were challenged directly with OSCN
<sup>-</sup>
before cell inoculation. These values were even lower when inoculated cells were maintained in contact with enzyme free-OSCN
<sup>-</sup>
in the culture medium. The last experimental conditions better reflect those of tracheobronchial mucosa, where HOSCN/OSCN
<sup>-</sup>
is retained in the air-liquid interface and inactivates both the viruses approaching the epithelium from outside and those released from the inoculated cells after the replication cycle. Importantly no OSCN
<sup>-</sup>
cytotoxicity was observed in the cellular system employed. The lack of toxicity in humans and the absence of damage on surfaces of fomites suggest a potential use of OSCN
<sup>-</sup>
to avoid mucosal and environmental transmission of influenza virus. Since hypothiocyanite is normally present in human airways a low risk of viral resistance is envisaged. In vivo confirmatory studies are needed to evaluate the appropriate dose, regimen and formulation.</EA>
<CC>002B03; 002B30A02A; 002B02S05</CC>
<FD>Infection; Activité biologique; In vitro; Antiviral; 2009; Santé publique; Influenzavirus; Prévention; Traitement; Contrôle; Désinfection; Santé et environnement; Médecine environnementale; Pandémie; Grippe H1N1</FD>
<FG>Orthomyxoviridae; Virus; Pathologie de l'appareil respiratoire; Virose</FG>
<ED>Infection; Biological activity; In vitro; Antiviral; 2009; Public health; Influenzavirus; Prevention; Treatment; Check; Disinfection; Health and environment; Environmental medicine; H1N1 influenza</ED>
<EG>Orthomyxoviridae; Virus; Respiratory disease; Viral disease</EG>
<SD>Infección; Actividad biológica; In vitro; Antiviral; 2009; Salud pública; Influenzavirus; Prevención; Tratamiento; Control; Desinfección; Salud y medio ambiente; Medicina ambiental; Gripe H1N1</SD>
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<ID>14-0075821</ID>
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