The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Autophagy regulates the processing of amino terminal huntingtin fragments
Abstract
The N-terminus of mutant huntingtin (htt) has a polyglutamine expansion and forms neuronal aggregates in the brain of Huntington's disease (HD) patients. Htt expression in vitro activates autophagy, but it is unclear whether autophagic/lysosomal pathways process htt, especially N-terminal htt fragments. We explored the role of autophagy in htt processing in three cell lines, clonal striatal cells, PC12 cells and rodent embryonic cells lacking cathepsin D. Blocking autophagy raised levels of exogenously expressed htt1-287 or 1-969, reduced cell viability and increased the number of cells bearing mutant htt aggregates. Stimulating autophagy promoted htt degradation, including breakdown of caspase cleaved N-terminal htt fragments. Htt expression increased levels of the lysosomal enzyme cathepsin D by an autophagy-dependent pathway. Cells without cathepsin D accumulated more N-terminal htt fragments and cells with cathepsin D were more efficient in degrading wt htt than mutant htt in vitro. These results suggest that autophagy plays a critical role in the degradation of N-terminal htt. Altered processing of mutant htt by autophagy and cathepsin D may contribute to HD pathogenesis.
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Histone deacetylase inhibitors arrest polyglutamine-dependent neurodegeneration in Drosophila
Steffan, J. S., Bodai, L., Pallos, J., Poelman, M., McCampbell, A., Apostol, B. L., Kazantsev, A., Schmidt, E., Zhu, Y.-Z., Greenwald, M., et al. (2001) · Nature · doi:10.1038/35099568 · Cited by 1,228 · cited 1×
“The plasmids were stably transfected into PC12 cell lines as described in Steffan et al. ( 64 ) and Peters et al. (65), to generate PC12 cell lines that express the htt gene under the regulation of an ecdysone-sensitive insect promoter.”
MethodCataldo, A. M., Barnett, J. L., Berman, S. A., Li, J., Quarless, S., Bursztajn, S., Lippa, C., & Nixon, R. A. (1995) · Neuron · doi:10.1016/0896-6273(95)90324-0 · Cited by 379
Mende-Mueller, L. M., Toneff, T., Hwang, S.-R., Chesselet, M.-F., & Hook, V. Y. H. (2001) · The Journal of Neuroscience · doi:10.1523/jneurosci.21-06-01830.2001 · Cited by 163
Cited by
Autophagy Is Activated for Cell Survival after Endoplasmic ReticulumStress
Ogata, M., Hino, S.-I., Saito, A., Morikawa, K., Kondo, S., Kanemoto, S., Murakami, T., Taniguchi, M., Tanii, I., Yoshinaga, K., et al. (2006) · Molecular and Cellular Biology · doi:10.1128/mcb.01453-06 · Cited by 1,832
Extensive Involvement of Autophagy in Alzheimer Disease: An Immuno-Electron Microscopy Study
Nixon, R. A., Wegiel, J., Kumar, A., Yu, W. H., Peterhoff, C., Cataldo, A., & Cuervo, A. M. (2005) · Journal of Neuropathology & Experimental Neurology · doi:10.1093/jnen/64.2.113 · Cited by 1,588
The roles of intracellular protein-degradation pathways in neurodegeneration
Rubinsztein, D. C. (2006) · Nature · doi:10.1038/nature05291 · Cited by 1,625
Autophagy and apoptosis dysfunction in neurodegenerative disorders
Ghavami, S., Shojaei, S., Yeganeh, B., Ande, S. R., Jangamreddy, J. R., Mehrpour, M., Christoffersson, J., Chaabane, W., Moghadam, A. R., Kashani, H. H., et al. (2014) · Progress in Neurobiology · doi:10.1016/j.pneurobio.2013.10.004 · Cited by 1,039
Kouroku, Y., Fujita, E., Tanida, I., Ueno, T., Isoai, A., Kumagai, H., Ogawa, S., Kaufman, R. J., Kominami, E., & Momoi, T. (2007) · Cell Death & Differentiation · doi:10.1038/sj.cdd.4401984 · Cited by 934
Metadata
- Authors
- Qin, Z.-H.
- Venue
- Human Molecular Genetics
- Publisher
- Oxford University Press (OUP)
- Published
- 2003-11-04
- Volume
- 12
- Issue
- 24
- Pages
- 3231-3244
- ISSN
- 0964-6906 (ISSN-L)
- 1460-2083
- OpenAlex
- W2106043356
- Cited by
- 254
- References
- 4
- FWCI
- 5.55
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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