RT Journal Article T1 Tumor vessel co-option probed by single-cell analysis. A1 Teuwen, Laure-Anne A1 De Rooij, Laura P M H A1 Cuypers, Anne A1 Rohlenova, Katerina A1 Dumas, Sébastien J A1 García-Caballero, Melissa A1 Meta, Elda A1 Amersfoort, Jacob A1 Taverna, Federico A1 Becker, Lisa M A1 Veiga, Nuphar A1 Cantelmo, Anna Rita A1 Geldhof, Vincent A1 Conchinha, Nadine V A1 Kalucka, Joanna A1 Treps, Lucas A1 Conradi, Lena-Christin A1 Khan, Shawez A1 Karakach, Tobias K A1 Soenen, Stefaan A1 Vinckier, Stefan A1 Schoonjans, Luc A1 Eelen, Guy A1 Van Laere, Steven A1 Dewerchin, Mieke A1 Dirix, Luc A1 Mazzone, Massimiliano A1 Luo, Yonglun A1 Vermeulen, Peter A1 Carmeliet, Peter K1 anti-angiogenic therapy K1 cancer cells K1 endothelial cells K1 macrophages K1 metastasis K1 pericytes K1 resistance K1 single-cell RNA sequencing K1 tumor angiogenesis K1 tumor vessel co-option AB Tumor vessel co-option is poorly understood, yet it is a resistance mechanism against anti-angiogenic therapy (AAT). The heterogeneity of co-opted endothelial cells (ECs) and pericytes, co-opting cancer and myeloid cells in tumors growing via vessel co-option, has not been investigated at the single-cell level. Here, we use a murine AAT-resistant lung tumor model, in which VEGF-targeting induces vessel co-option for continued growth. Single-cell RNA sequencing (scRNA-seq) of 31,964 cells reveals, unexpectedly, a largely similar transcriptome of co-opted tumor ECs (TECs) and pericytes as their healthy counterparts. Notably, we identify cell types that might contribute to vessel co-option, i.e., an invasive cancer-cell subtype, possibly assisted by a matrix-remodeling macrophage population, and another M1-like macrophage subtype, possibly involved in keeping or rendering vascular cells quiescent. YR 2021 FD 2021 LK https://hdl.handle.net/10668/27805 UL https://hdl.handle.net/10668/27805 LA en DS RISalud RD Apr 7, 2025