J 2003

c-Fos but not v-Fos protein induces programmed cell death of v-myb-transformed monoblasts

ZAHRADNÍČKOVÁ, Eva, Karel SOUČEK, Sabina ŠEVČÍKOVÁ, Jana ŠMARDOVÁ, Jan ŠMARDA et. al.

Basic information

Original name

c-Fos but not v-Fos protein induces programmed cell death of v-myb-transformed monoblasts

Authors

ZAHRADNÍČKOVÁ, Eva (203 Czech Republic), Karel SOUČEK (203 Czech Republic), Sabina ŠEVČÍKOVÁ (203 Czech Republic), Jana ŠMARDOVÁ (203 Czech Republic) and Jan ŠMARDA (203 Czech Republic, guarantor)

Edition

Cellular and Molecular Life Sciences, Bäsel, Birkhaeuser Verlag, 2003, 1420-682X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

Genetics and molecular biology

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 4.995

RIV identification code

RIV/00216224:14310/03:00008450

Organization unit

Faculty of Science

UT WoS

000187503800015

Keywords in English

Fos; Jun; AP-1; v-Myb; apoptosis; differentiation; proliferation; cell cycle
Změněno: 17/2/2009 08:17, prof. RNDr. Jan Šmarda, CSc.

Abstract

V originále

c-Fos and v-Fos belong to a group of proteins forming the transcription factor AP-1 that is important for differentiation, proliferation and apoptosis in multiple cell types. In this study, we examined the role of c-Fos and v-Fos proteins in v-myb-transformed BM2 monoblats. We show that while the v-Fos protein prolongs the G0G1 phase of the BM2 cell cycle, c-Fos leaves the cell cycle unaffected and, rather, induces programmed cell death. The apoptosis promoting activity of the c-Fos protein is markedly enhanced in cells cultivated under serum-free conditions. c-Fos-induced apoptosis occurred in the presence of Bcl-2 and was not dependent on the transcription activation function of the c-Fos protein. No differentiation-promoting activity of the Fos proteins was observed. The effects of Fos proteins on BM2 cells differ from those induced by Jun proteins, suggesting differential roles of individual components of the AP-1 transcription factor in regulation essential cellular processes.

Links

GA301/01/0040, research and development project
Name: Úloha proteinů Fos a Jun v monocytické diferenciaci stimulované kyselinou retinovou
Investor: Czech Science Foundation, The Role of Fos and Jun proteins in RA-driven monocytic differentiation
GA301/03/1055, research and development project
Name: Studium molekulárních mechanismů způsobujících supresi v-Myb s využitím přístupů proteomiky
Investor: Czech Science Foundation, Study of molecular mechanisms causing v-Myb suppression using proteomics-based approach
MSM 143100008, plan (intention)
Name: Genomy a jejich funkce
Investor: Ministry of Education, Youth and Sports of the CR, Genomes and their functions