Genetic variation in TMEM106B alters microglial activation and cytokine responses in chronic traumatic encephalopathy.

ABSTRACT: Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease caused by repetitive head impacts (RHI). However, individuals with similar RHI exposure can show differing pathology, suggesting a role for genetic variation. A common Transmembrane Protein 106B (TMEM106B) risk variant is associated with greater CTE severity, though its mechanism remains unclear. To determine whether TMEM106B alters the inflammatory response to pathology in CTE, we examined associations between microglia, via immunohistochemistry, and inflammatory cytokines, via immunoassay, in brain donors with CTE with and without the risk genotype (rs3173615). We analyzed 323 RHI-exposed brain donors: 55 without pathology (controls) and 268 with CTE. Regression models tested associations between TMEM106B risk and CTE

SUBMITTER: Hartman S 

PROVIDER: S-EPMC12634763 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature