The percentage of FASN+ EVs in glioblastoma patients was more than twice that of healthy donors (mean 16.5% GBM vs 7.1% HD, P = 0.007), with a similar result for patients with anaplastic astrocytomas (mean 18.8% AA vs 7.1% HD, P = 0.006), (Figure 4B). Here, FASN is linked to anaplastic astrocytoma.