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Citation Information: J Clin Invest. 2023;133(6):e168215. https://doi.org/10.1172/JCI168215.
Abstract
A subset of the neurodegenerative disease frontotemporal lobar degeneration (FTLD) is caused by mutations in the progranulin (GRN) gene. In this issue of the JCI, Marsan and colleagues demonstrate disease-specific transcriptional profiles in multiple glial cell lineages — astrocytes, microglia, and oligodendroglia — that are highly conserved between patients with FTLD-GRN and the widely used Grn–/– mouse model. Additionally, the authors show that Grn–/– astrocytes fail to adequately maintain synapses in both mouse and human models. This study presents a compelling argument for a central role for glia in neurodegeneration and creates a rich resource for extending mechanistic insight into pathophysiology, identifying potential biomarkers, and developing therapeutic approaches.
Authors
Emile S. Pinarbasi, Sami J. Barmada
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