TY - CHAP
T1 - The stress of misfolded proteins
T2 - C. elegans models for neurodegenerative disease and aging
AU - Brignull, Heather R.
AU - Morley, James F.
AU - Morimoto, Richard I.
PY - 2007/1/1
Y1 - 2007/1/1
N2 - A growing number of human neurodegenerative diseases are associated with the expres-ion of misfolded proteins that oligomerize and form aggregate structures. Over time, accumulation of misfolded proteins leads to the disruption of cellular protein folding homeostasis and eventually to cellular dysfunction and death. To investigate the relationship between misfolded proteins, neuropathology and aging, we have developed models utilizing the nematode C. elegans. In addition to being genetically tractable, C. elegans have rapid growth rates and short life-cycles, providing unique advantages for modeling neurodegenerative diseases of aging caused by the stress of misfolded proteins. The C. elegans models described here express polyglutamine expansion-containing proteins, as occur in Huntington's disease. Through the use of tissue-specific expression of different lengths of fluorescently tagged polyglutamine repeats, we have examined the dynamics of aggregate formation both within individual cells and over time throughout the lifetime of individual animals, identifying aging and other genetic modifiers as an important physiologic determinant of aggregation and toxicity.
AB - A growing number of human neurodegenerative diseases are associated with the expres-ion of misfolded proteins that oligomerize and form aggregate structures. Over time, accumulation of misfolded proteins leads to the disruption of cellular protein folding homeostasis and eventually to cellular dysfunction and death. To investigate the relationship between misfolded proteins, neuropathology and aging, we have developed models utilizing the nematode C. elegans. In addition to being genetically tractable, C. elegans have rapid growth rates and short life-cycles, providing unique advantages for modeling neurodegenerative diseases of aging caused by the stress of misfolded proteins. The C. elegans models described here express polyglutamine expansion-containing proteins, as occur in Huntington's disease. Through the use of tissue-specific expression of different lengths of fluorescently tagged polyglutamine repeats, we have examined the dynamics of aggregate formation both within individual cells and over time throughout the lifetime of individual animals, identifying aging and other genetic modifiers as an important physiologic determinant of aggregation and toxicity.
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U2 - 10.1007/978-0-387-39975-1_15
DO - 10.1007/978-0-387-39975-1_15
M3 - Chapter
C2 - 17205684
SN - 9780387399744
T3 - Advances in Experimental Medicine and Biology
SP - 167
EP - 189
BT - Molecular Aspects of the Stress Response
PB - Springer New York
ER -