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The P75 Neurotrophin Receptor Can Induce Autophagy and Death of Cerebellar Purkinje Neurons

Overview
Journal J Neurosci
Specialty Neurology
Date 2004 May 14
PMID 15140920
Citations 44
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Abstract

The cellular mechanisms underlying Purkinje neuron death in various neurodegenerative disorders of the cerebellum are poorly understood. Here we investigate an in vitro model of cerebellar neuronal death. We report that cerebellar Purkinje neurons, deprived of trophic factors, die by a form of programmed cell death distinct from the apoptotic death of neighboring granule neurons. Purkinje neuron death was characterized by excessive autophagic-lysosomal vacuolation. Autophagy and death of Purkinje neurons were inhibited by nerve growth factor (NGF) and were activated by NGF-neutralizing antibodies. Although treatment with antisense oligonucleotides to the p75 neurotrophin receptor (p75ntr) decreased basal survival of cultured cerebellar neurons, p75ntr-antisense decreased autophagy and completely inhibited death of Purkinje neurons induced by trophic factor withdrawal. Moreover, adenoviral expression of a p75ntr mutant lacking the ligand-binding domain induced vacuolation and death of Purkinje neurons. These results suggest that p75ntr is required for Purkinje neuron survival in the presence of trophic support; however, during trophic factor withdrawal, p75ntr contributes to Purkinje neuron autophagy and death. The autophagic morphology resembles that found in neurodegenerative disorders, suggesting a potential role for this pathway in neurological disease.

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References
1.
Wang K, Kim J, Sivasankaran R, Segal R, He Z . P75 interacts with the Nogo receptor as a co-receptor for Nogo, MAG and OMgp. Nature. 2002; 420(6911):74-8. DOI: 10.1038/nature01176. View

2.
Lemasters J, Qian T, He L, Kim J, Elmore S, Cascio W . Role of mitochondrial inner membrane permeabilization in necrotic cell death, apoptosis, and autophagy. Antioxid Redox Signal. 2002; 4(5):769-81. DOI: 10.1089/152308602760598918. View

3.
Cataldo A, Hamilton D, Barnett J, Paskevich P, Nixon R . Properties of the endosomal-lysosomal system in the human central nervous system: disturbances mark most neurons in populations at risk to degenerate in Alzheimer's disease. J Neurosci. 1996; 16(1):186-99. PMC: 6578706. View

4.
Frade J, Rodriguez-Tebar A, Barde Y . Induction of cell death by endogenous nerve growth factor through its p75 receptor. Nature. 1996; 383(6596):166-8. DOI: 10.1038/383166a0. View

5.
Barrett G, Georgiou A . The low-affinity nerve growth factor receptor p75NGFR mediates death of PC12 cells after nerve growth factor withdrawal. J Neurosci Res. 1996; 45(2):117-28. DOI: 10.1002/(SICI)1097-4547(19960715)45:2<117::AID-JNR4>3.0.CO;2-D. View