1. Academic Validation
  2. A novel ER stress-independent function of the UPR in angiogenesis

A novel ER stress-independent function of the UPR in angiogenesis

  • Mol Cell. 2014 May 22;54(4):542-4. doi: 10.1016/j.molcel.2014.05.013.
Hery Urra 1 Claudio Hetz 2
Affiliations

Affiliations

  • 1 Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago, Chile; Program of Cellular and Molecular Biology, Center for Molecular Studies of the Cell, Institute of Biomedical Sciences, University of Chile, Santiago, Chile.
  • 2 Biomedical Neuroscience Institute, Faculty of Medicine, University of Chile, Santiago, Chile; Program of Cellular and Molecular Biology, Center for Molecular Studies of the Cell, Institute of Biomedical Sciences, University of Chile, Santiago, Chile; Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, MA 02115, USA; Neurounion Biomedical Foundation, Santiago, Chile. Electronic address: [email protected].
Abstract

Tumors rely on the unfolded protein response (UPR) and angiogenesis to survive the metabolic stress of hypoxia. Karali et al. (2014) revealed that VEGF signaling engages UPR sensors in an unconventional manner that is independent of endoplasmic reticulum (ER) stress, mediated by mTOR signaling to promote endothelial cell survival and angiogenesis.

Figures