Cloning and Expression of Guanylin-like Peptides in Teleost Fish

International audience Homologues of the guanylin peptide family are expressed in teleost fish. Using the eel as a model euryhaline species, cDNAs for three peptides, guanylin, uroguanylin, and renoguanylin, were cloned and found to be expressed within both renal and intestinal epithelia. Seawater (...

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Bibliographic Details
Published in:Annals of the New York Academy of Sciences
Main Authors: CRAMB, GORDON, Martinez, Anne-Sophie, McWILLIAM, IAIN, WILSON, GILLIAN
Other Authors: University of St Andrews Scotland
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2005
Subjects:
osmoregulation
guanylin
guanylate cyclase
European eel
[SDV]Life Sciences [q-bio]
Online Access:https://hal.archives-ouvertes.fr/hal-02550662
https://doi.org/10.1196/annals.1327.042
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Summary:International audience Homologues of the guanylin peptide family are expressed in teleost fish. Using the eel as a model euryhaline species, cDNAs for three peptides, guanylin, uroguanylin, and renoguanylin, were cloned and found to be expressed within both renal and intestinal epithelia. Seawater (SW) acclimation resulted in upregulation of uroguanylin mRNA expression in the intestinal epithelia of both immature "yellow" and sexually mature "silver" eels. SW acclimation also resulted in an increase in guanylin mRNA in silver eel intestine, whereas there was no change in renoguanylin mRNA expression under any condition. No changes in expression were found in the kidney following SW acclimation.

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