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• W2336453066 abstract "The p75 neurotrophin receptor is important in multiple physiological actions including neuronal survival and neurite outgrowth during development, and after central nervous system injury. We have discovered a novel piperazine-derived compound, EVT901, which interferes with p75 neurotrophin receptor oligomerization through direct interaction with the first cysteine-rich domain of the extracellular region. Using ligand binding assays with cysteine-rich domains-fused p75 neurotrophin receptor, we confirmed that EVT901 interferes with oligomerization of full-length p75 neurotrophin receptor in a dose-dependent manner. Here we report that EVT901 reduces binding of pro-nerve growth factor to p75 neurotrophin receptor, blocks pro-nerve growth factor induced apoptosis in cells expressing p75 neurotrophin receptor, and enhances neurite outgrowth in vitro. Furthermore, we demonstrate that EVT901 abrogates p75 neurotrophin receptor signalling by other ligands, such as prion peptide and amyloid-β. To test the efficacy of EVT901 in vivo, we evaluated the outcome in two models of traumatic brain injury. We generated controlled cortical impacts in adult rats. Using unbiased stereological analysis, we found that EVT901 delivered intravenously daily for 1 week after injury, reduced lesion size, protected cortical neurons and oligodendrocytes, and had a positive effect on neurological function. After lateral fluid percussion injury in adult rats, oral treatment with EVT901 reduced neuronal death in the hippocampus and thalamus, reduced long-term cognitive deficits, and reduced the occurrence of post-traumatic seizure activity. Together, these studies provide a new reagent for altering p75 neurotrophin receptor actions after injury and suggest that EVT901 may be useful in treatment of central nervous system trauma and other neurological disorders where p75 neurotrophin receptor signalling is affected. The p75 neurotrophin receptor (p75NTR) is a member of the TNF-receptor superfamily. Delbary-Gossart, Lee et al. describe the neuroprotective effects of a novel piperizine derivative that blocks p75NTR. In two rodent models of traumatic brain injury, EVT901 protects neurons and glia, reduces inflammation and seizure susceptibility, and improves neurological outcomes." @default.
• W2336453066 created "2016-06-24" @default.
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• W2336453066 date "2016-04-15" @default.
• W2336453066 modified "2023-10-16" @default.
• W2336453066 title "A novel inhibitor of p75-neurotrophin receptor improves functional outcomes in two models of traumatic brain injury" @default.
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• W2336453066 doi "https://doi.org/10.1093/brain/aww074" @default.
• W2336453066 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4892754" @default.
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• W2336453066 hasPublicationYear "2016" @default.
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