Search: onr:"swepub:oai:lup.lub.lu.se:b036e96d-bc74-4687-b79c-f78a00436edf" >
Perturbations in th...
Perturbations in the p53/miR-34a/SIRT1 pathway in the R6/2 Huntington's disease model
-
- Reynolds, Regina Hertfelder (author)
- University of Copenhagen
-
- Petersen, Maria Hvidberg (author)
- University of Copenhagen
-
- Willert, Cecilie Wennemoes (author)
- University of Copenhagen
-
show more...
-
- Heinrich, Marie (author)
- University of Copenhagen
-
- Nymann, Nynne (author)
- University of Copenhagen
-
- Dall, Morten (author)
- University of Copenhagen
-
- Treebak, Jonas T. (author)
- University of Copenhagen
-
- Björkqvist, Maria (author)
- Lund University,Lunds universitet,Biomarkörer vid hjärnsjukdomar,Forskargrupper vid Lunds universitet,Biomarkers in Brain Disease,Lund University Research Groups
-
- Silahtaroglu, Asli (author)
- University of Copenhagen
-
- Hasholt, Lis (author)
- University of Copenhagen
-
- Nørremølle, Anne (author)
- University of Copenhagen
-
show less...
-
(creator_code:org_t)
- Elsevier BV, 2018
- 2018
- English 12 s.
-
In: Molecular and Cellular Neuroscience. - : Elsevier BV. - 1044-7431. ; 88, s. 118-129
- Related links:
-
http://dx.doi.org/10...
-
show more...
-
https://lup.lub.lu.s...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- The three factors, p53, the microRNA-34 family and Sirtuin 1 (SIRT1), interact in a positive feedback loop involved in cell cycle progression, cellular senescence and apoptosis. Each factor in this triad has roles in metabolic regulation, maintenance of mitochondrial function, and regulation of brain-derived neurotrophic factor (BDNF). Thus, this regulatory network holds potential importance for the pathophysiology of Huntington's disease (HD), an inherited neurodegenerative disorder in which both mitochondrial dysfunction and impaired neurotrophic signalling are observed. We investigated expression of the three members of this regulatory triad in the R6/2 HD mouse model. Compared to wild-type littermates, we found decreased levels of miR-34a-5p, increased SIRT1 mRNA and protein levels, and increased levels of p53 protein in brain tissue from R6/2 mice. The upregulation of SIRT1 did not appear to lead to an increased activity of the enzyme, as based on measures of p53 acetylation. In other words, the observed changes did not reflect the known interactions between these factors, indicating a general perturbation of the p53, miR-34a and SIRT1 pathway in HD. This is the first study investigating the entire triad during disease progression in an HD model. Given the importance of these three factors alone and within the triad, our results indicate that outside factors are regulating – or dysregulating – this pathway in HD.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
Keyword
- Huntington's disease
- miR-34a
- p53
- SIRT1
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
Reynolds, Regina ...
-
Petersen, Maria ...
-
Willert, Cecilie ...
-
Heinrich, Marie
-
Nymann, Nynne
-
Dall, Morten
-
show more...
-
Treebak, Jonas T ...
-
Björkqvist, Mari ...
-
Silahtaroglu, As ...
-
Hasholt, Lis
-
Nørremølle, Anne
-
show less...
- About the subject
-
- MEDICAL AND HEALTH SCIENCES
-
MEDICAL AND HEAL ...
-
and Clinical Medicin ...
-
and Neurology
- Articles in the publication
-
Molecular and Ce ...
- By the university
-
Lund University