Cleavage at the caspase-6 site is required for neuronal dysfunction and degeneration due to mutant huntingtin

RK Graham, Y Deng, EJ Slow, B Haigh, N Bissada… - Cell, 2006 - cell.com
Cleavage of huntingtin (htt) has been characterized in vitro, and accumulation of caspase
cleavage fragments represents an early pathological change in brains of Huntington's …

Cleavage at the 586 amino acid caspase-6 site in mutant huntingtin influences caspase-6 activation in vivo

RK Graham, Y Deng, J Carroll, K Vaid… - Journal of …, 2010 - Soc Neuroscience
Caspase cleavage of huntingtin (htt) and nuclear htt accumulation represent early
neuropathological changes in brains of patients with Huntington's disease (HD). However …

Activated caspase-6 and caspase-6-cleaved fragments of huntingtin specifically colocalize in the nucleus

SC Warby, CN Doty, RK Graham… - Human molecular …, 2008 - academic.oup.com
Proteolysis of mutant huntingtin is crucial to the development of Huntington disease (HD).
Specifically preventing proteolysis at the capase-6 (C6) consensus sequence at amino acid …

Caspase cleavage of mutant huntingtin precedes neurodegeneration in Huntington's disease

CL Wellington, LM Ellerby, CA Gutekunst… - Journal of …, 2002 - Soc Neuroscience
Huntington's disease (HD) results from polyglutamine expansion in huntingtin (htt), a protein
with several consensus caspase cleavage sites. Despite the identification of htt fragments in …

Huntington disease: new insights on the role of huntingtin cleavage

CL Wellington, BR Leavitt, MR Hayden - Advances in Research on …, 2000 - Springer
Huntington Disease (HD) results from polyglutamine expansion within the N-terminus of
huntingtin. We have produced yeast artificial chromosome (YAC) transgenic mice …

Caspase 3-cleaved N-terminal fragments of wild-type and mutant huntingtin are present in normal and Huntington's disease brains, associate with membranes, and …

YJ Kim, Y Yi, E Sapp, Y Wang… - Proceedings of the …, 2001 - National Acad Sciences
The Huntington's disease (HD) mutation is a polyglutamine expansion in the N-terminal
region of huntingtin (N-htt). How neurons die in HD is unclear. Mutant N-htt aggregates in …

Specific caspase interactions and amplification are involved in selective neuronal vulnerability in Huntington's disease

E Hermel, J Gafni, SS Propp, BR Leavitt… - Cell Death & …, 2004 - nature.com
Huntington's disease (HD) is an autosomal dominant progressive neurodegenerative
disorder resulting in selective neuronal loss and dysfunction in the striatum and cortex. The …

Wild‐type huntingtin protects neurons from excitotoxicity

BR Leavitt, JM van Raamsdonk… - Journal of …, 2006 - Wiley Online Library
Huntingtin is a caspase substrate, and loss of normal huntingtin function resulting from
caspase‐mediated proteolysis may play a role in the pathogenesis of Huntington disease …

Inhibiting caspase cleavage of huntingtin reduces toxicity and aggregate formation in neuronal and nonneuronal cells

CL Wellington, L Ellerby, J Savill, S Roy… - Journal of Biological …, 2000 - ASBMB
Huntington's disease is a neurodegenerative disorder caused by CAG expansion that
results in expansion of a polyglutamine tract at the extreme N terminus of huntingtin (htt). htt …

Huntingtin's neuroprotective activity occurs via inhibition of procaspase-9 processing

D Rigamonti, S Sipione, D Goffredo, C Zuccato… - Journal of Biological …, 2001 - ASBMB
Huntington's Disease is an inherited neurodegenerative disease that affects the medium
spiny neurons in the striatum. The disease is caused by the expansion of a polyglutamine …