Wasl is crucial to maintain microglial core activities during glioblastoma initiation stages.

ABSTRACT: Microglia actively promotes the growth of high-grade gliomas. Within the glioma microenvironment an amoeboid microglial morphology has been observed, however the underlying causes and the related impact on microglia functions and their tumor promoting activities is unclear. Using the advantages of the larval zebrafish model, we identified the underlying mechanism and show that microglial morphology and functions are already impaired during glioma initiation stages. The presence of pre-neoplastic HRasV12 expressing cells induces an amoeboid morphology of microglia, increases microglial numbers and decreases their motility and phagocytic activity. RNA sequencing analysis revealed lower expression levels of the actin nucleation promoting factor wasla in microglia. Importantly, a microglia spe

SUBMITTER: Mazzolini J 

PROVIDER: S-EPMC9306864 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature