RT Journal Article T1 ADAMTS1 Supports Endothelial Plasticity of Glioblastoma Cells with Relevance for Glioma Progression A1 Serrano-Garrido, Orlando A1 Peris-Torres, Carlos A1 Redondo-García, Silvia A1 Asenjo, Helena G. A1 Plaza-Calonge, María del Carmen A1 Fernandez-Luna, José Luis A1 Rodríguez-Manzaneque, Juan Carlos K1 ADAMTS proteases K1 Endothelial-like phenotype K1 Extracellular metalloprotease K1 Glioblastoma K1 Plasticity K1 Tumor microenvironment K1 Cell line K1 Endothelial cells K1 Glioma K1 Proteínas ADAMTS K1 Fenotipo K1 Metaloproteasas K1 Matriz extracelular K1 Plasticidad de la célula K1 Microambiente tumoral K1 Línea celular K1 Células endoteliales AB Gliomas in general and the more advanced glioblastomas (GBM) in particular are the most usual tumors of the central nervous system with poor prognosis. GBM patients develop resistance to distinct therapies, in part due to the existence of tumor cell subpopulations with stem-like properties that participate in trans-differentiation events. Within the complex tumor microenvironment, the involvement of extracellular proteases remains poorly understood. The extracellular protease ADAMTS1 has already been reported to contribute to the plasticity of cancer cells. Accordingly, this basic knowledge and the current availability of massive sequencing data from human gliomas, reinforced the development of this work. We first performed an in silico study of ADAMTS1 and endothelial markers in human gliomas, providing the basis to further assess these molecules in several primary glioblastoma-initiating cells and established GBM cells with the ability to acquire an endothelial-like phenotype. Using a co-culture approach of endothelial and GBM cells, we noticed a relevant function of ADAMTS1 in GBM cells leading the organization of endothelial-like networks and, even more significantly, we found a blockade of the formation of tumor-spheres and a deficient response to hypoxia in the absence of ADAMTS1. Our data support a chief role of this protease modulating the phenotypic plasticity of GBM. PB MDPI YR 2020 FD 2020-12-31 LK http://hdl.handle.net/10668/4225 UL http://hdl.handle.net/10668/4225 LA en NO Serrano-Garrido O, Peris-Torres C, Redondo-García S, Asenjo HG, Plaza-Calonge MDC, Fernandez-Luna JL, et al. ADAMTS1 Supports Endothelial Plasticity of Glioblastoma Cells with Relevance for Glioma Progression. Biomolecules. 2020 Dec 31;11(1):44 DS RISalud RD Apr 8, 2025