Glioblastoma (GBM) is characterized by its aggressive infiltrative growth, which is influenced by various cellular states and microenvironmental factors. A study by Doroszko et al. identifies distinct cell states associated with specific invasion routes in GBM, revealing that these states are plastic and can be reprogrammed. The research highlights the potential for targeting these invasive cell states as a therapeutic strategy, emphasizing the importance of functional biomarkers in understanding route-specific invasion (ref: Doroszko doi.org/10.1038/s41467-025-61999-1/). Additionally, Buizza et al. explore the role of pericytes, a type of mural cell, in the tumor microenvironment. Their findings suggest that pericytes not only facilitate vascular co-option but also contribute to the immunosuppressive environment that promotes tumor growth and migration, indicating a complex interplay between tumor cells and perivascular cells in GBM progression (ref: Buizza doi.org/10.1002/1878-0261.70095/). Together, these studies underscore the multifaceted mechanisms of invasion in GBM, highlighting the need for targeted therapies that consider both cellular plasticity and the tumor microenvironment.