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Understanding Dopaminergic Cell Death Pathways in Parkinson Disease: Cell Death in Parkinson Disease

Abstract : Parkinson’s disease (PD) is a multifactorial neurodegenerative disorder, the etiology of which remains largely unknown. Progressive impairment of voluntary motor control, which represents the primary clinical feature of the disease, is caused by a loss of midbrain substantia nigra dopamine (DA) neurons. We present, here, a synthetic overview of cell autonomous mechanisms that are likely to participate in DA cell death in both sporadic and inherited forms of the disease. In particular, we describe how damage to vulnerable DA neurons may arise from cellular disturbances produced by protein misfolding and aggregation, disruption of autophagic catabolism, endoplasmic reticulum (ER) stress, mitochondrial dysfunction or loss of calcium homeostasis. Where pertinent, we show how these mechanisms may mutually cooperate to promote neuronal death.
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Submitted on : Tuesday, July 26, 2016 - 9:30:41 AM
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Patrick P. Michel, Etienne Hirsch, Stéphane Hunot. Understanding Dopaminergic Cell Death Pathways in Parkinson Disease: Cell Death in Parkinson Disease. Neuron, Elsevier, 2016, 90 ((4)), pp.675-91. ⟨10.1016/j.neuron.2016.03.038⟩. ⟨inserm-01348875⟩

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