Nesrine S Rachedi, Ying Tang, Yi-Yin Tai, Jingsi Zhao, Caroline Chauvet, Julien Grynblat, Kouamé Kan Firmin Akoumia, Leonard Estephan, Stéphanie Torrino, Chaima Sbai, Amel Ait-Mouffok, Joseph D Latoche, Yassmin Al Aaraj, Frederic Brau, Sophie Abélanet, Stephan Clavel, Yingze Zhang, Christelle Guillermier, Naveen V G Kumar, Sina Tavakoli, Olaf Mercier, Michael G Risbano, Zhong-Ke Yao, Guangli Yang, Ouathek Ouerfelli, Jason S Lewis, David Montani, Marc Humbert, Matthew L Steinhauser, Carolyn J Anderson, William M Oldham, Frédéric Perros, Thomas Bertero, Stephen Y Chan
Perivascular collagen deposition by activated fibroblasts promotes vascular stiffening and drives cardiovascular diseases such as pulmonary hypertension (PH). Whether and how vascular fibroblasts rewire their metabolism to sustain collagen biosynthesis remains unknown. Here, we found that inflammation, hypoxia, and mechanical stress converge on activating the transcriptional coactivators YAP and TAZ (WWTR1) in pulmonary arterial adventitial fibroblasts (PAAFs). Consequently, YAP and TAZ drive glutamine and serine catabolism to sustain proline and glycine anabolism and promote collagen biosynthesis...
April 24, 2024: Cell Metabolism