Cited by 562Genetic Neurodegenerative DiseasesAdipose Tissue and MetabolismMitochondrial Function and Pathology

Thermoregulatory and metabolic defects in Huntington's disease transgenic mice implicate PGC-1α in Huntington's disease neurodegeneration

Open access
Weydt, Patrick, Pineda, Victor V., Torrence, Anne E., Libby, Randell T., Satterfield, Terrence F., Lazarowski, Eduardo R., Gilbert, Merle L., Morton, Gregory J. +11 more·2006·Cell Metabolism

Abstract

Huntington's disease (HD) is a fatal, dominantly inherited disorder caused by polyglutamine repeat expansion in the huntingtin (htt) gene. Here, we observe that HD mice develop hypothermia associated with impaired activation of brown adipose tissue (BAT). Although sympathetic stimulation of PPARgamma coactivator 1alpha (PGC-1alpha) was intact in BAT of HD mice, uncoupling protein 1 (UCP-1) induction was blunted. In cultured cells, expression of mutant htt suppressed UCP-1 promoter activity; this was reversed by PGC-1alpha expression. HD mice showed reduced food intake and increased energy expenditure, with dysfunctional BAT mitochondria. PGC-1alpha is a known regulator of mitochondrial function; here, we document reduced expression of PGC-1alpha target genes in HD patient and mouse striatum. Mitochondria of HD mouse brain show reduced oxygen consumption rates. Finally, HD striatal neurons expressing exogenous PGC-1alpha were resistant to 3-nitropropionic acid treatment. Altered PGC-1alpha function may thus link transcription dysregulation and mitochondrial dysfunction in HD.

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Crossref · 10.1016/j.cmet.2006.10.004

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  • PGC-1α is impaired in HD patients and transgenic HD models.

    “Recently, Peroxisome proliferator-activated receptor-γ-coactivator (PGC-1α), which is a coactivator of several transcription factors and is a key regulator of mitochondrial biogenesis was found to be impaired in HD patients and transgenic HD models70-72.”

    From Mitochondrial Approaches for Neuroprotection (2008) · cites this paper as [70]

  • Decreased PGC-1α expression was observed in HD transgenic mice and HD patients.

    “Recently, a role of impaired function of PGC-1α in HD pathogenesis was suggested and decreased PGC-1α expression was observed in HD transgenic mice and HD patients70-72.”

    From Mitochondrial Approaches for Neuroprotection (2008) · cites this paper as [70]

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Authors
Weydt, P., Pineda, V. V., Torrence, A. E., Libby, R. T., Satterfield, T. F., Lazarowski, E. R., Gilbert, M. L., Morton, G. J., Bammler, T. K., Strand, A. D., Cui, L., Beyer, R. P., Easley, C. N., Smith, A. C., Krainc, D., Luquet, S., Sweet, I. R., Schwartz, M. W., & La Spada, A. R.
Affiliations
  • University of Washington (US)
  • University of North Carolina at Chapel Hill (US)
  • Fred Hutch Cancer Center (US)
  • Harvard University (US)
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2006-11
Volume
4
Issue
5
Pages
349-362
ISSN
1550-4131 (ISSN-L)
OpenAlex
W2037640340
Cited by
562
References
60
Citations by year
2026: 7 · 2025: 14 · 2024: 16 · 2023: 13 · 2022: 9 · 2021: 23 · 2020: 20 · 2019: 21 · 2018: 29 · 2017: 29 · 2016: 33 · 2015: 29 · 2014: 43 · 2013: 23 · 2012: 48
FWCI
12.76
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Hereditary Disease Foundation
  • American Foundation for Aging Research (AG00057)
  • National Institutes of Health (DK063986, DK17047, NS050352)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
Huntington's disease, PGC-1α, brown adipose tissue, thermoregulation, hypothermia, UCP1, mitochondrial dysfunction, huntingtin, striatal neurons, energy expenditure, dietary intake, 3-nitropropionic acid, neurodegeneration, transcriptional dysregulation
MeSH terms
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, Animals, Body Temperature, Body Temperature Regulation, Adipose Tissue, Brown, Cells, Cultured, Disease Models, Animal, Heat-Shock Proteins, Huntington Disease, Mice, Transgenic, Mitochondria, Transcription Factors, Transcription, Genetic, Signal Transduction, Mice

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