Last reviewed: June 1, 2026

2012Journal of Clinical Investigation

Progranulin deficiency promotes neuroinflammation and neuron loss following toxin-induced injury

Martens LH, Zhang J, Barmada SJ, et al.

Abstract summary

Showed that progranulin-deficient microglia display exaggerated inflammatory responses and impaired phagocytosis. In the context of toxin-induced neuronal injury, GRN knockout mice show greater neuroinflammation and neurodegeneration. Progranulin regulates lysosomal function and cytokine production in microglia.

Evidence labels

animal model

Targets

Diseases

  • Frontotemporal dementia
  • Brain aging

Species

mouse

Methods

mouse genetics, flow cytometry, ELISA, immunohistochemistry

Therapeutic relevance

GRN replacement therapy targets microglial lysosomal dysfunction and neuroinflammation in FTD.

Last reviewed: June 1, 2026