scholarly journals Establishing and Interpreting Graded Sonic Hedgehog Signaling during Vertebrate Neural Tube Patterning: The Role of Negative Feedback

2009 ◽  
Vol 1 (2) ◽  
pp. a002014-a002014 ◽  
Author(s):  
V. Ribes ◽  
J. Briscoe
Blood ◽  
2014 ◽  
Vol 124 (13) ◽  
pp. 2061-2071 ◽  
Author(s):  
Zhiqiang Liu ◽  
Jingda Xu ◽  
Jin He ◽  
Yuhuan Zheng ◽  
Haiyan Li ◽  
...  

Key Points CD138+ MM cells are a major source of SHH. Autocrine SHH enhances MM drug resistance.


2016 ◽  
Vol 41 (12) ◽  
pp. 3289-3299 ◽  
Author(s):  
Li-Chun Wang ◽  
Guillermina Almazan

2007 ◽  
Vol 58 ◽  
pp. S82
Author(s):  
Munekazu Komada ◽  
Hirotomo Saitsu ◽  
Kohei Shiota ◽  
Makoto Ishibashi

Development ◽  
1998 ◽  
Vol 125 (14) ◽  
pp. 2533-2543 ◽  
Author(s):  
Q. Ding ◽  
J. Motoyama ◽  
S. Gasca ◽  
R. Mo ◽  
H. Sasaki ◽  
...  

Floor plate cells at the midline of the neural tube are specified by high-level activity of Sonic hedgehog (Shh) secreted by notochord, whereas motor neurons are thought to be specified by a lower level activity of Shh secreted in turn by floor plate cells. In Drosophila, the Gli zinc finger protein Cubitus interruptus functions as a transcription factor activating Hedgehog-responsive genes. We report that the expression of known Shh-responsive genes such as Ptc and Gli1 is downregulated in mutant mice lacking Gli2 function. Gli2 mutants fail to develop a floor plate yet still develop motor neurons, which occupy the ventral midline of the neural tube. Our results imply that Gli2 is required to mediate high level but not low level Shh activity and show that the development of motor neurons can occur in the absence of floor plate induction.


Sign in / Sign up

Export Citation Format

Share Document