New neurons are continually born throughout adulthood predominantly in several regions of the brain:

The subventricular zone (SVZ)

Striatal interneurons

The subgranular zone (SGZ), part of the dentate gyrus of hippocampus.

The nucleus accumbens, specifically medium spiny neurons

Glioblastoma GBM contrast-enhancing recurrence is significantly associated with proximity to NRs. NR-contacting initial tumors were more likely to recur out of radiation treatment fields ¹⁾.