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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
A rapid increase in cAMP in response to 20-hydroxyecdysone in the anterior silk glands of the silkworm, Bombyx mori
Zoological Science, Volume 23, No. 8, Year 2006
Notification
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Description
In the anterior silk glands (ASGs) of the silkworm, Bombyx mori, intracellular cAMP increases transiently to a very high level shortly after the hemolymph ecdysteroid peak in the prepupal period. In cultured ASGs obtained on the day of gut-purge, cAMP levels were increased by 20-hydroxy-ecdysone (20E), and this increase was enhanced by an inhibitor of phosphodiesterase, but was not affected by α-amanitin, indicating the 20E action may not be mediated via gene expression. The increase in cAMP occurred within 30 seconds of exposure to a physiological concentration of 20E (1 μM), and also by ponasterone A. Our findings indicate a nongenomic action of ecdysteroids in insects, which may be an additional mechanism by which this steroid hormone induces acute responses in tissues and cells. © 2006 Zoological Society of Japan.
Authors & Co-Authors
Elmogy, Mohamed
Japan, Kanazawa
Kanazawa University
Egypt, Giza
Faculty of Science
Terashima, Jun
Japan, Kanazawa
Kanazawa University
Japan, Sendai
Tohoku University
Iga, Masatoshi
Japan, Kanazawa
Kanazawa University
IWAMI, Masafumi
Japan, Kanazawa
Kanazawa University
Sakurai, Sho
Japan, Kanazawa
Kanazawa University
Statistics
Citations: 20
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.2108/zsj.23.715
ISSN:
02890003
e-ISSN:
02890003
Research Areas
Genetics And Genomics