Tolwinski Nicholas S
Program in Developmental Biology, Sloan-Kettering Institute, Memorial Sloan-Kettering Cancer Center, New York, New York 10065, USA.
Genetics. 2009 Mar;181(3):1169-73. doi: 10.1534/genetics.108.098236. Epub 2009 Jan 5.
The Wingless signaling pathway controls various developmental processes in both vertebrates and invertebrates. Here I probe the requirement for nuclear localization of APC2 and Axin in the Wg signal transduction pathway during embryonic development of Drosophila melanogaster. I find that nuclear localization of APC2 appears to be required, but Axin can block signaling when tethered to the membrane. These results support the model where Axin regulates Armadillo localization and activity in the cytoplasm.
无翅信号通路控制着脊椎动物和无脊椎动物的各种发育过程。在这里,我探究了在黑腹果蝇胚胎发育过程中,APC2和Axin的核定位在Wg信号转导通路中的必要性。我发现APC2的核定位似乎是必需的,但当Axin与膜相连时,它可以阻断信号传导。这些结果支持了Axin在细胞质中调节犰狳定位和活性的模型。