Neuronal apoptosis as a therapeutic target in neurodegenerative disease

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Abstract
Apoptosis is a form of physiological or programmed cell death. It has been speculated that this process might account for the death of selective neuronal populations in certain progressive neurodegenerative disorders, including Alzheimer’s disease (AD) and Parkinson’s disease (PD) and some circumstantial evidence to support this view has been forthcoming. Increased understanding of the molecular pathophysiology of neuronal apoptosis may therefore present significant new therapeutic targets, to slow or halt neurodegeneration. This article reviews patents from the last five years which claim the use of apoptotic modulators in neurodegenerative disease. Although there are a significant number of claims, very few are buttressed with strong experimental evidence; this is usually from cell culture studies, rather than animal models of neurodegenerative disease; only a single human clinical study was identified. Thus, although treatment of neurodegenerative disease by means of manipulating apoptosis is an area of much activity and holds promise for the future, clinical application of current patents is unlikely in the near future. Extant medications may conceivably exert some of their action through effects on apoptosis.