[PDF][PDF] Tead and AP1 coordinate transcription and motility

X Liu, H Li, M Rajurkar, Q Li, JL Cotton, J Ou, LJ Zhu… - Cell reports, 2016 - cell.com
X Liu, H Li, M Rajurkar, Q Li, JL Cotton, J Ou, LJ Zhu, HL Goel, AM Mercurio, JS Park
Cell reports, 2016cell.com
The Tead family transcription factors are the major intracellular mediators of the Hippo-Yap
pathway. Despite the importance of Hippo signaling in tumorigenesis, Tead-dependent
downstream oncogenic programs and target genes in cancer cells remain poorly
understood. Here, we characterize Tead4-mediated transcriptional networks in a diverse
range of cancer cells, including neuroblastoma, colorectal, lung, and endometrial
carcinomas. By intersecting genome-wide chromatin occupancy analyses of Tead4, JunD …
Summary
The Tead family transcription factors are the major intracellular mediators of the Hippo-Yap pathway. Despite the importance of Hippo signaling in tumorigenesis, Tead-dependent downstream oncogenic programs and target genes in cancer cells remain poorly understood. Here, we characterize Tead4-mediated transcriptional networks in a diverse range of cancer cells, including neuroblastoma, colorectal, lung, and endometrial carcinomas. By intersecting genome-wide chromatin occupancy analyses of Tead4, JunD, and Fra1/2, we find that Tead4 cooperates with AP1 transcription factors to coordinate target gene transcription. We find that Tead-AP1 interaction is JNK independent but engages the SRC1–3 co-activators to promote downstream transcription. Furthermore, we show that Tead-AP1 cooperation regulates the activity of the Dock-Rac/CDC42 module and drives the expression of a unique core set of target genes, thereby directing cell migration and invasion. Together, our data unveil a critical regulatory mechanism underlying Tead- and AP1-controlled transcriptional and functional outputs in cancer cells.
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