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Transforming growth factor-beta inhibits the expression of clock genes

Gast, Heidemarie; Gordic, Sonja; Petrzilka, Saskia; Lopez, Martin; Müller, Andreas; Gietl, Anton; Hock, Christoph; Birchler, Thomas; Fontana, Adriano (2012). Transforming growth factor-beta inhibits the expression of clock genes. Annals of the New York Academy of Sciences, 1261:79-87.

Abstract

Disturbances of sleep-wake rhythms are an important problem in Alzheimer's disease (AD). Circadian rhythms are regulated by clock genes. Transforming growth factor-beta (TGF-β) is overexpressed in neurons in AD and is the only cytokine that is increased in cerebrospinal fluid (CSF). Our data show that TGF-β2 inhibits the expression of the clock genes Period (Per)1, Per2, and Rev-erbα, and of the clock-controlled genes D-site albumin promoter binding protein (Dbp) and thyrotroph embryonic factor (Tef). However, our results showed that TGF-β2 did not alter the expression of brain and muscle Arnt-like protein-1 (Bmal1). The concentrations of TGF-β2 in the CSF of 2 of 16 AD patients and of 1 of 7 patients with mild cognitive impairment were in the dose range required to suppress the expression of clock genes. TGF-β2-induced dysregulation of clock genes may alter neuronal pathways, which may be causally related to abnormal sleep-wake rhythms in AD patients.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Immunology
04 Faculty of Medicine > Institute for Regenerative Medicine (IREM)
Dewey Decimal Classification:610 Medicine & health
Scopus Subject Areas:Life Sciences > General Neuroscience
Life Sciences > General Biochemistry, Genetics and Molecular Biology
Social Sciences & Humanities > History and Philosophy of Science
Language:English
Date:2012
Deposited On:14 Nov 2012 13:21
Last Modified:07 Jul 2025 01:41
Publisher:Wiley-Blackwell
ISSN:0077-8923
OA Status:Closed
Publisher DOI:https://doi.org/10.1111/j.1749-6632.2012.06640.x
PubMed ID:22823397
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