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A long non-coding RNA promotes full activation of adult gene expression in the chicken ?-globin domain.


ABSTRACT: Long non-coding RNAs (lncRNAs) were recently shown to regulate chromatin remodelling activities. Their function in regulating gene expression switching during specific developmental stages is poorly understood. Here we describe a nuclear, non-coding transcript responsive for the stage-specific activation of the chicken adult ?(D) globin gene. This non-coding transcript, named ?-globin transcript long non-coding RNA (lncRNA-?GT) is transcriptionally upregulated in late stages of chicken development, when active chromatin marks the adult ?(D) gene promoter. Accordingly, the lncRNA-?GT promoter drives erythroid-specific transcription. Furthermore, loss of function experiments showed that lncRNA-?GT is required for full activation of the ?(D) adult gene and maintenance of transcriptionally active chromatin. These findings uncovered lncRNA-?GT as an important part of the switching from embryonic to adult ?-globin gene expression, and suggest a function of lncRNA-?GT in contributing to the maintenance of adult ?-globin gene expression by promoting an active chromatin structure.

SUBMITTER: Arriaga-Canon C 

PROVIDER: S-EPMC3928180 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature

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A long non-coding RNA promotes full activation of adult gene expression in the chicken α-globin domain.

Arriaga-Canon Cristian C   Fonseca-Guzmán Yael Y   Valdes-Quezada Christian C   Arzate-Mejía Rodrigo R   Guerrero Georgina G   Recillas-Targa Félix F  

Epigenetics 20131106 1


Long non-coding RNAs (lncRNAs) were recently shown to regulate chromatin remodelling activities. Their function in regulating gene expression switching during specific developmental stages is poorly understood. Here we describe a nuclear, non-coding transcript responsive for the stage-specific activation of the chicken adult α(D) globin gene. This non-coding transcript, named α-globin transcript long non-coding RNA (lncRNA-αGT) is transcriptionally upregulated in late stages of chicken developme  ...[more]

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