Chapter title |
Morphometric Analysis of Huntington's Disease Neurodegeneration in Drosophila.
|
---|---|
Chapter number | 3 |
Book title |
Tandem Repeats in Genes, Proteins, and Disease
|
Published in |
Methods in molecular biology, January 2013
|
DOI | 10.1007/978-1-62703-438-8_3 |
Pubmed ID | |
Book ISBNs |
978-1-62703-437-1, 978-1-62703-438-8
|
Authors |
Song, Wan, Smith, Marianne R, Syed, Adeela, Lukacsovich, Tamas, Barbaro, Brett A, Purcell, Judith, Bornemann, Doug J, Burke, John, Marsh, J Lawrence, Wan Song, Marianne R. Smith, Adeela Syed, Tamas Lukacsovich, Brett A. Barbaro, Judith Purcell, Doug J. Bornemann, John Burke, J. Lawrence Marsh, Song, W, Smith, MR, Syed, A, Lukacsovich, T, Barbaro, BA, Purcell, J, Bornemann, DJ, Burke, J, Marsh, JL, Smith, Marianne R., Barbaro, Brett A., Bornemann, Doug J., Marsh, J. Lawrence |
Abstract |
Huntington's disease (HD) is an autosomal dominant neurodegenerative disorder. The HD gene encodes the huntingtin protein (HTT) that contains polyglutamine tracts of variable length. Expansions of the CAG repeat near the amino terminus to encode 40 or more glutamines (polyQ) lead to disease. At least eight other expanded polyQ diseases have been described. HD can be faithfully modeled in Drosophila with the key features of the disease such as late onset, slowly progressing degeneration, formation of abnormal protein aggregates and the dependence on polyQ length being evident. Such invertebrate model organisms provide powerful platforms to explore neurodegenerative mechanisms and to productively speed the identification of targets and agents that are likely to be effective at treating diseases in humans. Here we describe an optical pseudopupil method that can be readily quantified to provide a fast and sensitive assay for assessing the degree of HD neurodegeneration in vivo. We discuss detailed crossing schemes as well as factors including different drivers, various constructs, the number of UAS sites, genetic background, and temperature that can influence the result of pseudopupil measurements. |
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