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Article Dans Une Revue Nature Communications Année : 2024

VC-resist glioblastoma cell state: vessel co-option as a key driver of chemoradiation resistance

Vidhya Ravi
Kevin Joseph
Dieter Heiland
Charita Furumaya
Aaron Diaz
Giorgio Seano

Résumé

Glioblastoma (GBM) is a highly lethal type of cancer. GBM recurrence following chemoradiation is typically attributed to the regrowth of invasive and resistant cells. Therefore, there is a pressing need to gain a deeper understanding of the mechanisms underlying GBM resistance to chemoradiation and its ability to infiltrate. Using a combination of transcriptomic, proteomic, and phosphoproteomic analyses, longitudinal imaging, organotypic cultures, functional assays, animal studies, and clinical data analyses, we demonstrate that chemoradiation and brain vasculature induce cell transition to a functional state named VC-Resist (vessel co-opting and resistant cell state). This cell state is midway along the transcriptomic axis between proneural and mesenchymal GBM cells and is closer to the AC/MES1-like state. VC-Resist GBM cells are highly vessel co-opting, allowing significant infiltration into the surrounding brain tissue and homing to the perivascular niche, which in turn induces even more VC-Resist transition. The molecular and functional characteristics of this FGFR1-YAP1-dependent GBM cell state, including resistance to DNA damage, enrichment in the G2M phase, and induction of senescence/stemness pathways, contribute to its enhanced resistance to chemoradiation. These findings demonstrate how vessel co-option, perivascular niche, and GBM cell plasticity jointly drive resistance to therapy during GBM recurrence.
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hal-04648492 , version 1 (15-07-2024)

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Cathy Pichol-Thievend, Oceane Anezo, Aafrin Pettiwala, Guillaume Bourmeau, Remi Montagne, et al.. VC-resist glioblastoma cell state: vessel co-option as a key driver of chemoradiation resistance. Nature Communications, 2024, 15 (1), pp.3602. ⟨10.1038/s41467-024-47985-z⟩. ⟨hal-04648492⟩
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