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Mucin gene expression in rat airways following infection and irritation

Identifieur interne : 001B91 ( Main/Exploration ); précédent : 001B90; suivant : 001B92

Mucin gene expression in rat airways following infection and irritation

Auteurs : Berthold Jany [Allemagne] ; Marianne Gallup [États-Unis] ; Tohru Tsuda [États-Unis] ; Carol Basbaum [États-Unis]

Source :

RBID : ISTEX:251BB4FDFF6773FE8053EA2A410A967EEF59634E

English descriptors

Abstract

Summary: Airway mucus hypersecretion occurs in response to infection and irritation and poses an important and poorly understood clinical problem. In order to gain insight into its pathogenesis, we have focused on an mRNA encoding the major mucus glycoprotein, mucin. Northern blots showed that mucin mRNA was abundant in the intestine of specific pathogen free rats whereas it was undetectable in the airways of these rats until pathogen-free conditions were suspended and rats acquired Sendai (Parainfluenza I) virus infections. Airway mucin hybridization signals in rats that were both infected with Sendai virus and exposed to SO2were more intense than those in rats with infection alone. These results suggest that pathogen-and irritant-induced hypersecretion may be partly controlled at the level of mucin mRNA.

Url:
DOI: 10.1016/S0006-291X(05)81373-7


Affiliations:


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Le document en format XML

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<term>Biophysical</term>
<term>Biophysical research communications</term>
<term>Bronchial epithelium</term>
<term>Bronchitis</term>
<term>Cdna</term>
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<term>Corona virus</term>
<term>Cystic fibrosis</term>
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<term>Mucous</term>
<term>Mucous cells</term>
<term>Mucus</term>
<term>Mucus glycoproteins</term>
<term>Mucus hypersecretion</term>
<term>Northern blots</term>
<term>Pathogen</term>
<term>Rat</term>
<term>Respiratory tract infections</term>
<term>Sendai</term>
<term>Sendai rats</term>
<term>Sendai virus</term>
<term>Sendal virus</term>
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<term>Significant antibody titers</term>
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<term>Sodium chloride</term>
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<div type="abstract" xml:lang="en">Summary: Airway mucus hypersecretion occurs in response to infection and irritation and poses an important and poorly understood clinical problem. In order to gain insight into its pathogenesis, we have focused on an mRNA encoding the major mucus glycoprotein, mucin. Northern blots showed that mucin mRNA was abundant in the intestine of specific pathogen free rats whereas it was undetectable in the airways of these rats until pathogen-free conditions were suspended and rats acquired Sendai (Parainfluenza I) virus infections. Airway mucin hybridization signals in rats that were both infected with Sendai virus and exposed to SO2were more intense than those in rats with infection alone. These results suggest that pathogen-and irritant-induced hypersecretion may be partly controlled at the level of mucin mRNA.</div>
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