Xuran Chu, Vahid Kheirollahi, Arun Lingampally, Prakash Chelladurai, Chanil Valasarajan, Ana Ivonne Vazquez-Armendariz, Stefan Hadzic, Ali Khadim, Oleg Pak, Stefano Rivetti, Jochen Wilhelm, Marek Bartkuhn, Slaven Crnkovic, Alena Moiseenko, Monika Heiner, Simone Kraut, Leila Sotoodeh, Janine Koepke, Guilherme Valente, Clemens Ruppert, Thomas Braun, Christos Samakovlis, Ioannis Alexopoulos, Mario Looso, Cho-Ming Chao, Susanne Herold, Werner Seeger, Grazyna Kwapiszewska, Xiaoying Huang, Jin-San Zhang, Soni Savai Pullamsetti, Norbert Weissmann, Xiaokun Li, Elie El Agha, Saverio Bellusci
BACKGROUND: The precise origin of newly formed ACTA2+ (alpha smooth muscle actin-positive) cells appearing in nonmuscularized vessels in the context of pulmonary hypertension is still debatable although it is believed that they predominantly derive from preexisting vascular smooth muscle cells (VSMCs). METHODS: Gli1 Cre-ERT2 ; tdTomato flox mice were used to lineage trace GLI1+ (glioma-associated oncogene homolog 1-positive) cells in the context of pulmonary hypertension using 2 independent models of vascular remodeling and reverse remodeling: hypoxia and cigarette smoke exposure...
April 19, 2024: Circulation Research