TY  - JOUR
TI  - AP-1<SUP>c-Jun/FosB</SUP> mediates xFoxD5b expression in <I>Xenopus</I> early developmental neurogenesis
AU  - Yoon, Jaeho
AU  - Kim, Jung-Ho
AU  - Lee, Ok-Joo
AU  - Lee, Sung-Young
AU  - Lee, Seung-Hwan
AU  - Park, Jae-Bong
AU  - Lee, Jae-Yong
AU  - Kim, Sung-Chan
AU  - Kim, Jaebong
T2  - The International Journal of Developmental Biology
AB  - AP-1 (activator protein-1) is composed of Jun and Fos proteins and functions in cell proliferation, apoptosis and differentiation. Previous studies have demonstrated that different AP-1 complexes participate in the determination of various cell fates. However, the role of different AP-1 complexes during early vertebrate development is not yet fully understood. In the present study, we demonstrate that AP-1c-Jun/FosB regulates neurogenesis via FoxD5b expression. We show that FoxD5 was induced by the inhibition of BMP and that FoxD5b plays roles in neurogenesis. Additionally, we show that the FoxD5b promoter region within -1336 and -1316 contains an AP-1 binding site, which is required for the transcriptional regulation of FoxD5b and is induced by the inhibition of BMP signaling in animal cap explants. Moreover, c-Jun, a component of AP-1, directly binds to the AP-1 binding site of the FoxD5b promoter and induces FoxD5b expression cooperatively with FosB, but not with c-Fos or Fra-1. Altogether, these results suggest that AP-1c-Jun/FosB may play a role in neurogenesis via the induction of FoxD5b expression during early vertebrate development.
PY  - 2013
DO  - 10.1387/ijdb.130163jk
VL  - 57
IS  - 11-12
SP  - 865
EP  - 872
J2  - Int. J. Dev. Biol.
LA  - en
SN  - 0214-6282
SN  - 1696-3547
UR  - https://ijdb.ehu.eus/article/130163jk
Y2  - 2024/04/29/18:18:34
ER  -