Effect of Cortisol on Aquaporin Expression in the Esophagus of the European Eel, Anguilla anguilla
International audience Long-term cortisol infusion into freshwater (FW)-adapted eels induced a significant increase in aquaporin-1 (AQP1) mRNA expression within the esophageal epithelium of migratory "silver" eels, but not in nonmigratory, immature "yellow" eels. Cortisol treatme...
Published in: | Annals of the New York Academy of Sciences |
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Main Authors: | , , , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2005
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Subjects: | |
Online Access: | https://hal.archives-ouvertes.fr/hal-02550684 https://hal.archives-ouvertes.fr/hal-02550684/document https://hal.archives-ouvertes.fr/hal-02550684/file/Martinez%20et%20al%202005b.pdf https://doi.org/10.1196/annals.1327.072 |
Summary: | International audience Long-term cortisol infusion into freshwater (FW)-adapted eels induced a significant increase in aquaporin-1 (AQP1) mRNA expression within the esophageal epithelium of migratory "silver" eels, but not in nonmigratory, immature "yellow" eels. Cortisol treatment had no significant effect on the mRNA abundance of a second aquaporin-1 isoform, termed AQP1dup, which exhibited a highly variable expression profile among individual members of all fish groups. These results suggest that cortisol, at plasma concentrations similar to that found during FW/seawater (SW) acclimation, induces upregulation in AQP1 expression and thus increases esophageal water permeability during the migration of eels to the SW environment. |
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