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TNFalpha contributes to the death of NGF-dependent neurons during development

Barker, Victoria, Middleton, Gayle, Davey, Fleur and Davies, Alun M. 2001. TNFalpha contributes to the death of NGF-dependent neurons during development. Nature Neuroscience , pp. 1194-1198. 10.1038/nn755

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Many sympathetic and sensory neurons depend on a supply of nerve growth factor (NGF) from their targets during development, and neurons that fail to obtain sufficient NGF die by apoptosis. Here we show that tumor necrosis factor alpha (TNF) is involved in bringing about the death of NGF-deprived neurons. Function-blocking antibodies against either TNF or TNF receptor 1 (TNFR1) rescued many sympathetic and sensory neurons following NGF deprivation in vitro. Fewer sympathetic and sensory neurons died during the phase of naturally occurring neuronal death in TNF-deficient embryos, and neurons from these embryos survived in culture better than wild-type neurons. These neurons coexpress TNF and TNFR1 during this stage of development, suggesting that TNF acts by an autocrine loop.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
ISSN: 1097-6256
Last Modified: 16 Oct 2017 14:34

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