Участь протеїнкіназ, що активуються мітогенами, і фактора транскрипції АР-1 в перенесенні регуляторного сигналу кортикотропіну в адренокортикоцитах щурів

The messenger mechanisms mediating corticotropin regulatory signals in adrenal cortex are studied. We have measured the secretion of corticosteroids, levels of ERK1/2, JNK, p38 mitogen-activated protein kinases, and transcription factors с-jun and с-fos in adrenal cortex of rats after the corticotro...

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Datum:2007
1. Verfasser: Ковзун, О.І.
Format: Artikel
Sprache:Ukrainian
Veröffentlicht: Видавничий дім "Академперіодика" НАН України 2007
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Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/1752
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:Участь протеїнкіназ, що активуються мітогенами, і фактора транскрипції АР-1 в перенесенні регуляторного сигналу кортикотропіну в адренокортикоцитах щурів / О.І. Ковзун // Доп. НАН України. — 2007. — N 7. — С. 186–191. — Бібліогр.: 15 назв. — укp.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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Zusammenfassung:The messenger mechanisms mediating corticotropin regulatory signals in adrenal cortex are studied. We have measured the secretion of corticosteroids, levels of ERK1/2, JNK, p38 mitogen-activated protein kinases, and transcription factors с-jun and с-fos in adrenal cortex of rats after the corticotropin treatment. ACTH increased the ERK1/2 level by a factor of 1.5 in adrenocortical tissue. The level of ERK1/2 was decreased in 6 h after the corticotropin injection. ACTH influence on the JNK level is very significant. The protein kinase JNK level was 2 times higher after 1 h and decreased after 6 h of the corticotropin treatment. The level of p38 kinase was not changed under these conditions. The role of the transcription factor AP-1, which includes the c-fos and c-jun factors, attracts attention in realization of corticotropin signal transduction. C-jun was increased 2-fold by 1 h, and c-fos was increased 1.7-fold after 6 h of ACTH treatment. Together these findings suggest that JNK kinase and the transcriptional factor c-jun mediate the fast corticotropin signal transduction in adrenocorticocytes.
ISSN:1025-6415