A YAP/TAZ-TEAD signalling module links endothelial nutrient acquisition to angiogenic growth.

Angiogenesis, the process by which endothelial cells (ECs) form new blood vessels from existing ones, is intimately linked to the tissue's metabolic milieu and often occurs at nutrient-deficient sites. However, ECs rely on sufficient metabolic resources to support growth and proliferation. How...

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Detalles Bibliográficos
Autores: Ong, Yu Ting, Andrade, Jorge, Armbruster, Max, Shi, Chenyue, Castro, Marco, Costa, Ana S H, Sugino, Toshiya, Eelen, Guy, Zimmermann, Barbara, Wilhelm, Kerstin, Lim, Joseph, Watanabe, Shuichi, Guenther, Stefan, Schneider, Andre, Zanconato, Francesca, Kaulich, Manuel, Pan, Duojia, Braun, Thomas, Gerhardt, Holger, Efeyan, Alejo, Carmeliet, Peter, Piccolo, Stefano, Grosso, Ana Rita, Potente, Michael
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Instituto de Salud Carlos III (ISCIII)
Repositorio:Repisalud
Idioma:inglés
OAI Identifier:oai:repisalud.isciii.es:20.500.12105/18870
Acceso en línea:http://hdl.handle.net/20.500.12105/18870
Access Level:acceso abierto
Palabra clave:Endothelial Cells
Trans-Activators
Acyltransferases
Animals
Mechanistic Target of Rapamycin Complex 1
Mice
Nutrients
TEA Domain Transcription Factors
YAP-Signaling Proteins
Descripción
Sumario:Angiogenesis, the process by which endothelial cells (ECs) form new blood vessels from existing ones, is intimately linked to the tissue's metabolic milieu and often occurs at nutrient-deficient sites. However, ECs rely on sufficient metabolic resources to support growth and proliferation. How endothelial nutrient acquisition and usage are regulated is unknown. Here we show that these processes are instructed by Yes-associated protein 1 (YAP)/WW domain-containing transcription regulator 1 (WWTR1/TAZ)-transcriptional enhanced associate domain (TEAD): a transcriptional module whose function is highly responsive to changes in the tissue environment. ECs lacking YAP/TAZ or their transcriptional partners, TEAD1, 2 and 4 fail to divide, resulting in stunted vascular growth in mice. Conversely, activation of TAZ, the more abundant paralogue in ECs, boosts proliferation, leading to vascular hyperplasia. We find that YAP/TAZ promote angiogenesis by fuelling nutrient-dependent mTORC1 signalling. By orchestrating the transcription of a repertoire of cell-surface transporters, including the large neutral amino acid transporter SLC7A5, YAP/TAZ-TEAD stimulate the import of amino acids and other essential nutrients, thereby enabling mTORC1 activation. Dissociating mTORC1 from these nutrient inputs-elicited by the loss of Rag GTPases-inhibits mTORC1 activity and prevents YAP/TAZ-dependent vascular growth. Together, these findings define a pivotal role for YAP/TAZ-TEAD in controlling endothelial mTORC1 and illustrate the essentiality of coordinated nutrient fluxes in the vasculature.

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