Antiviral activity of carboxyethylgermanium sesquioxide (Ge-132) in mice infected with influenza virus.
Identifieur interne : 002139 ( Main/Exploration ); précédent : 002138; suivant : 002140Antiviral activity of carboxyethylgermanium sesquioxide (Ge-132) in mice infected with influenza virus.
Auteurs : H. Aso [Japon] ; F. Suzuki ; T. Ebina ; N. IshidaSource :
- Journal of biological response modifiers [ 0732-6580 ] ; 1989.
Descripteurs français
- KwdFr :
- Animaux, Antinéoplasiques (pharmacologie), Cellules tueuses naturelles (), Cellules tueuses naturelles (physiologie), Composés organométalliques (pharmacologie), Germanium (pharmacologie), Infections à Orthomyxoviridae (traitement médicamenteux), Interférons (pharmacologie), Interférons (sang), Lignées consanguines de souris, Poumon (microbiologie), Relation dose-effet des médicaments, Souris, Virus de la grippe A ().
- MESH :
- microbiologie : Poumon.
- pharmacologie : Antinéoplasiques, Composés organométalliques, Germanium, Interférons.
- physiologie : Cellules tueuses naturelles.
- sang : Interférons.
- traitement médicamenteux : Infections à Orthomyxoviridae.
- Animaux, Cellules tueuses naturelles, Lignées consanguines de souris, Relation dose-effet des médicaments, Souris, Virus de la grippe A.
English descriptors
- KwdEn :
- Animals, Antineoplastic Agents (pharmacology), Dose-Response Relationship, Drug, Germanium (pharmacology), Influenza A virus (drug effects), Interferons (blood), Interferons (pharmacology), Killer Cells, Natural (drug effects), Killer Cells, Natural (physiology), Lung (microbiology), Mice, Mice, Inbred Strains, Organometallic Compounds (pharmacology), Orthomyxoviridae Infections (drug therapy).
- MESH :
- chemical , blood : Interferons.
- chemical , pharmacology : Antineoplastic Agents, Germanium, Interferons, Organometallic Compounds.
- drug effects : Influenza A virus, Killer Cells, Natural.
- drug therapy : Orthomyxoviridae Infections.
- microbiology : Lung.
- physiology : Killer Cells, Natural.
- Animals, Dose-Response Relationship, Drug, Mice, Mice, Inbred Strains.
Abstract
The protective effect of carboxyethylgermanium sesquioxide (Ge-132) in mice infected with a mouse-adapted strain of influenza virus (H2N2) was investigated. When mice were exposed to a 10 LD50 dose of influenza virus via aerosol and were treated orally with 20 or 100 mg/kg of Ge-132 daily for 6 consecutive days, a significant protective effect was demonstrated. The antiviral effect of Ge-132 was indicated by an increase of survivors, a prolongation of mean survival days, an inhibition of the development of lung consolidation, and a decrease of virus titer in lung tissues, as compared to infected control mice treated with phosphate-buffered saline. Natural killer (NK) cell activity in the spleens and lungs of the infected mice was also significantly augmented after the oral administration of Ge-132. In addition, NK cells stimulated with Ge-132 in vivo showed killing activity against NK-insensitive Meth-A cells infected with influenza virus. Because no virucidal or virustatic activities of Ge-132 on the virus were found in vitro, this protective effect in mice against influenza virus infection may be displayed through immunomodulating activities of this compound such as the augmentation of NK cell activity.
PubMed: 2471817
Affiliations:
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Le document en format XML
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When mice were exposed to a 10 LD50 dose of influenza virus via aerosol and were treated orally with 20 or 100 mg/kg of Ge-132 daily for 6 consecutive days, a significant protective effect was demonstrated. The antiviral effect of Ge-132 was indicated by an increase of survivors, a prolongation of mean survival days, an inhibition of the development of lung consolidation, and a decrease of virus titer in lung tissues, as compared to infected control mice treated with phosphate-buffered saline. Natural killer (NK) cell activity in the spleens and lungs of the infected mice was also significantly augmented after the oral administration of Ge-132. In addition, NK cells stimulated with Ge-132 in vivo showed killing activity against NK-insensitive Meth-A cells infected with influenza virus. Because no virucidal or virustatic activities of Ge-132 on the virus were found in vitro, this protective effect in mice against influenza virus infection may be displayed through immunomodulating activities of this compound such as the augmentation of NK cell activity.</div></front></TEI><affiliations><list><country><li>Japon</li></country></list><tree><noCountry><name sortKey="Ebina, T" sort="Ebina, T" uniqKey="Ebina T" first="T" last="Ebina">T. Ebina</name><name sortKey="Ishida, N" sort="Ishida, N" uniqKey="Ishida N" first="N" last="Ishida">N. Ishida</name><name sortKey="Suzuki, F" sort="Suzuki, F" uniqKey="Suzuki F" first="F" last="Suzuki">F. Suzuki</name></noCountry><country name="Japon"><noRegion><name sortKey="Aso, H" sort="Aso, H" uniqKey="Aso H" first="H" last="Aso">H. Aso</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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