CBP usnadňuje diferenciaci monoblastů transformovaných v-myb působením diferenciačních induktorů

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F05%3A00012558" target="_blank" >RIV/00216224:14310/05:00012558 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

CBP sensitizes v-myb-transformed monoblasts to differentiation inducers

Popis výsledku v původním jazyce

CREB-binding protein (CBP) regulates gene expression by binding to certain components of basal transcription machinery and by histone acetylation. In addition, it integrates various cellular signaling pathways through binding to multiple transcription factors, including the Myb proteins. We report in this study that CBP can partially suppress function of the v-Myb oncoprotein in leukemic cells. Although originally described as activator of v-Myb function, we show that CBP can also act as v-Myb suppressor. Ectopic expression of murine CBP in v-Myb-transformed chicken monoblasts reduced transcriptional activation abilities of the v-Myb protein and increased sensitivity to differentiation inducers such as phorbol ester or trichostatin A. In addition, exogenous CBP affected morphology of differentiated cells derived from BM2 monoblasts. Altogether, these results indicate that cellular context is an important factor to determine whether CBP will activate or suppress the protein it targets.

Název v anglickém jazyce

CBP sensitizes v-myb-transformed monoblasts to differentiation inducers

Popis výsledku anglicky

CREB-binding protein (CBP) regulates gene expression by binding to certain components of basal transcription machinery and by histone acetylation. In addition, it integrates various cellular signaling pathways through binding to multiple transcription factors, including the Myb proteins. We report in this study that CBP can partially suppress function of the v-Myb oncoprotein in leukemic cells. Although originally described as activator of v-Myb function, we show that CBP can also act as v-Myb suppressor. Ectopic expression of murine CBP in v-Myb-transformed chicken monoblasts reduced transcriptional activation abilities of the v-Myb protein and increased sensitivity to differentiation inducers such as phorbol ester or trichostatin A. In addition, exogenous CBP affected morphology of differentiated cells derived from BM2 monoblasts. Altogether, these results indicate that cellular context is an important factor to determine whether CBP will activate or suppress the protein it targets.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FD - Onkologie a hematologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA301%2F03%2F1055" target="_blank" >GA301/03/1055: Studium molekulárních mechanismů způsobujících supresi v-Myb s využitím přístupů proteomiky</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Differentiation

ISSN

0301-4681

e-ISSN

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Svazek periodika

73

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

11

Strana od-do

222-232

Kód UT WoS článku

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EID výsledku v databázi Scopus

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