Click here to close Hello! We notice that you are using Internet Explorer, which is not supported by Xenbase and may cause the site to display incorrectly. We suggest using a current version of Chrome, FireFox, or Safari.
XB-ART-39597
Dev Biol 2009 Jul 15;3312:340-9. doi: 10.1016/j.ydbio.2009.04.016.
Show Gene links Show Anatomy links

Unexpected functional redundancy between Twist and Slug (Snail2) and their feedback regulation of NF-kappaB via Nodal and Cerberus.

Zhang C , Klymkowsky MW .


???displayArticle.abstract???
A NF-kappaB-Twist-Snail network controls axis and mesoderm formation in Drosophila. Using translation-blocking morpholinos and hormone-regulated proteins, we demonstrate the presence of an analogous network in the early Xenopus embryo. Loss of twist (twist1) function leads to a reduction of mesoderm and neural crest markers, an increase in apoptosis, and a decrease in snail1 (snail) and snail2 (slug) mRNA levels. Injection of snail2 mRNA rescues twist's loss of function phenotypes and visa versa. In the early embryo NF-kappaB/RelA regulates twist, snail2, and snail1 mRNA levels; similarly Nodal/Smad2 regulate twist, snail2, snail1, and relA RNA levels. Both Twist and Snail2 negatively regulate levels of cerberus RNA, which encodes a Nodal, bone morphogenic protein (BMP), and Wnt inhibitor. Cerberus's anti-Nodal activity inhibits NF-kappaB activity and decreases relA RNA levels. These results reveal both conserved and unexpected regulatory interactions at the core of a vertebrate's mesodermal specification network.

???displayArticle.pubmedLink??? 19389392
???displayArticle.pmcLink??? PMC2747320
???displayArticle.link??? Dev Biol
???displayArticle.grants??? [+]

Species referenced: Xenopus
Genes referenced: a2m cer1 chrd myod1 nfkb1 nodal nodal1 rela snai1 snai2 tbxt twist1 vegt
???displayArticle.morpholinos??? snai2 MO1 twist1 MO1 twist1 MO2


???attribute.lit??? ???displayArticles.show???
References [+] :
Agius, Endodermal Nodal-related signals and mesoderm induction in Xenopus. 2000, Pubmed, Xenbase