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International Journal of Clinical and
Experimental Pathology
Int J Clin Exp Pathol 2(2),108-118;2009

Review Article
Caspases as Therapeutic Targets in Alzheimer’s Disease: Is It Time to “Cut” to the
Chase?

Troy T. Rohn and Elizabeth Head

Department of Biology, Science/Nursing Building, Room 228, Boise State University, Boise, Idaho, 83725 and Institute for Brain Aging and
Dementia, Department of Neurology, University of California, Irvine, CA 92697

Received 4 June 2008; Accepted and available online 10 June 2008

Abstract: Mounting evidence suggests the involvement of caspases in the disease process associated with Alzheimer’s disease (AD).
The activation of caspases may be responsible for the neurodegeneration associated with AD and several recent studies have
suggested that caspases may also play a role in promoting pathogenic mechanisms underlying this disease. Thus, caspase activation
and cleavage of the amyloid precursor protein (APP) and tau may facilitate both the production of beta-amyloid (Aβ) as well as the
formation of neurofibrillary tangles (NFTs). Because the activation of caspases in AD may be a proximal event that is not just associated
with neurodegeneration, caspases are potential therapeutic targets for the treatment of this disorder. In this review, studies documenting
the role of caspases in the AD brain will be discussed. In this context, a discussion of the therapeutic value of targeting caspase inhibition
in the treatment of AD will be evaluated including drug targets, delivery and selectivity.(IJCEP806003 ).

Key Words: Apoptosis, caspase, Alzheimer’s disease, Tau, beta-amyloid, amyloid precursor protein, neurofibrillary tangle

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Address all correspondences to: Elizabeth Head, Ph.D., Institute for Brain Aging and Dementia, Department of Neurology, University of
California, 1259 Gillespie Neuroscience Research Facility, Irvine, CA 92697-4540. Tel: 949-824-8700; Fax: 949-824-2071; Email:
ehead@uci.edu