Cell density sensing alters TGF-β signaling in a cell-type-specific manner, independent from Hippo pathway activation.
Cell density sensing alters TGF-β signaling in a cell-type-specific manner, independent from Hippo pathway activation.
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DOI:
10.1016/j.devcel.2015.01.011
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发表时间:
2015-03-09
影响因子:
11.8
通讯作者:
Mauviel, Alain
中科院分区:
文献类型:
--
作者:
Nallet-Staub, Flore;Yin, Xueqian;Gilbert, Cristele;Marsaud, Veronique;Ben Mimoun, Saber;Javelaud, Delphine;Leof, Edward B.;Mauviel, Alain
Cell-cell contacts inhibit cell growth and proliferation in part by activating the Hippo pathway that drives the phosphorylation and nuclear exclusion of the transcriptional coactivators YAP and TAZ. Cell density and Hippo signaling have also been reported to block transforming growth factor β (TGF-β) responses, based on the ability of phospho-YAP/TAZ to sequester TGF-β-activated SMAD complexes in the cytoplasm. Herein, we provide evidence that epithelial cell polarization interferes with TGF-β signaling well upstream and independent of cytoplasmic YAP/TAZ. Rather, polarized basolateral presentation of TGF-β receptors I and II deprives apically delivered TGF-β of access to its receptors. Basolateral ligand delivery nonetheless remains entirely effective to induce TGF-β responses. These data demonstrate that cell-type-specific inhibition of TGF-β signaling by cell density is restricted to polarized epithelial cells and reflects the polarized distribution of TGF-β receptors, which thus affects SMAD activation irrespective of Hippo pathway activation.
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DOI:
10.1073/pnas.0605333103
发表时间:
2006-08-22
影响因子:
11.1
作者:
Gomis, Roger R.;Alarcon, Claudio;Massague, Joan
通讯作者:
Massague, Joan
影响因子:
4.3
作者:
Alexaki, Vasileia-Ismini;Javelaud, Delphine;Mauviel, Alain
通讯作者:
Mauviel, Alain
影响因子:
6.4
作者:
Ellenrieder, V;Hendler, SF;Gress, TM
通讯作者:
Gress, TM
影响因子:
4.8
作者:
Hiemer, Samantha E.;Szymaniak, Aleksander D.;Varelas, Xaralabos
通讯作者:
Varelas, Xaralabos
影响因子:
11.2
作者:
Dennler, Sylviane;Andre, Jocelyne;Mauviel, Alain
通讯作者:
Mauviel, Alain