Barde, Yves-Alain ![]() |
Abstract
Because the adult mammalian brain has a very limited capacity to replace neurons lost after lesion (1), understanding the mechanisms regulating their survival or elimination is of special significance. A study in this issue of PNAS (2) reveals that cutting the axons of a neuronal population involved in movement control leads to a progressive and dramatic increase of pro-nerve growth factor (NGF) in brain fluids. Pro-NGF kills injured neurons by virtue of its high affinity binding to a receptor that is induced after axotomy, the neurotrophin receptor p75. Another recent study also indicates that neurons may not be the only targets of pro-NGF-mediated killing: after partial transaction of the spinal cord, oligodendrocytes may also be eliminated by the mechanism described by Harrington and colleagues (3).
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Biosciences |
Publisher: | National Academy of Sciences |
ISSN: | 0027-8424 |
Last Modified: | 27 Oct 2022 08:26 |
URI: | https://orca.cardiff.ac.uk/id/eprint/62298 |
Citation Data
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