Published in

Wiley Open Access, CNS Neuroscience and Therapeutics, 1(29), p. 317-330, 2022

DOI: 10.1111/cns.14006

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Targeting CCL5 signaling attenuates neuroinflammation after seizure

Journal article published in 2022 by Zhuoran Zhang ORCID, Yan Li, Shihe Jiang, Fu‐Dong Shi ORCID, Kaibin Shi, Wei‐Na Jin
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Data provided by SHERPA/RoMEO

Abstract

AbstractBackgroundEpilepsy is a neurological condition that causes unprovoked, recurrent seizures. Accumulating evidence from clinical and experimental studies indicates that neuroinflammation exacerbates seizure activity.MethodsWe investigated the transcriptional changes occurring in specific brain domains of a seizure mouse model, using 10× Genomics spatial transcriptomics. Differential gene expression and pathway analysis were applied to investigate potential signaling targets for seizure, including CCL5/CCR5 pathway. Maraviroc, an FDA‐approved C‐C chemokine receptor 5 (CCR5) antagonist, was used to verify the impact of CCL5/CCR5 signaling in seizure mice.ResultsWe found distinguished regional transcriptome features in the hippocampus of seizure mice. The hippocampus exhibited unique inflammatory gene signatures, including glia activation, apoptosis, and immune response in seizure mice. Especially, we observed notable expression of C‐C chemokine ligand 5 (CCL5) throughout the entire seizure hippocampus. Blockade of CCL5/CCR5 signaling via maraviroc prevented microglia activation and neuron degeneration in seizure mice.ConclusionsThis study supports the potential of CCL5/CCR5 signaling for targeting neuroinflammation after seizure.