Circadian changes in long noncoding RNAs in the pineal gland

Steven L Coon, Peter J Munson, Praveen F Cherukuri, David Sugden, Martin Fredensborg Rath, Morten Møller, Samuel J H Clokie, Cong Fu, Mary E Olanich, Zoila Rangel, Thomas Werner, NISC Comparative Sequencing Program, James C Mullikin, David C Klein

58 Citationer (Scopus)

Abstract

Long noncoding RNAs (lncRNAs) play a broad range of biological roles, including regulation of expression of genes and chromosomes. Here, we present evidence that lncRNAs are involved in vertebrate circadian biology. Differential night/day expression of 112 lncRNAs (0.3 to >50 kb) occurs in the rat pineal gland, which is the source of melatonin, the hormone of the night. Approximately one-half of these changes reflect nocturnal increases. Studies of eight lncRNAs with 2- to >100-fold daily rhythms indicate that, in most cases, the change results from neural stimulation from the central circadian oscillator in the suprachiasmatic nucleus (doubling time = 0.5-1.3 h). Light exposure at night rapidly reverses (halving time = 9-32 min) levels of some of these lncRNAs. Organ culture studies indicate that expression of these lncRNAs is regulated by norepinephrine acting through cAMP. These findings point to a dynamic role of lncRNAs in the circadian system.
OriginalsprogEngelsk
TidsskriftProceedings of the National Academy of Sciences of the United States of America
Vol/bind109
Udgave nummer33
Sider (fra-til)13319-13324
Antal sider6
ISSN0027-8424
DOI
StatusUdgivet - 14 aug. 2012

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