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Ziegler C, Graf J, Faderl S, Schedlbauer J, Strieder N, Förstl B, Spang R, Bruckmann A, Merkl R, Hombach S, Kretz M. The long non-coding RNA LINC00941 and SPRR5 are novel regulators of human epidermal homeostasis. EMBO Rep 2019; 20:embr.201846612. [PMID: 30622217 DOI: 10.15252/embr.201846612] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 11/29/2018] [Accepted: 12/04/2018] [Indexed: 01/07/2023] Open
Abstract
Several long non-coding RNAs (lncRNAs) act as regulators of cellular homeostasis; however, few of these molecules were functionally characterized in a mature human tissue environment. Here, we report that the lncRNA LINC00941 is a crucial regulator of human epidermal homeostasis. LINC00941 is enriched in progenitor keratinocytes and acts as a repressor of keratinocyte differentiation. Furthermore, LINC00941 represses SPRR5, a previously uncharacterized molecule, which functions as an essential positive regulator of keratinocyte differentiation. Interestingly, 54.8% of genes repressed in SPRR5-deficient epidermal tissue are induced in LINC00941-depleted organotypic epidermis, suggesting a common mode of action for both molecules.
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Affiliation(s)
- Christian Ziegler
- Institute of Biochemistry, Genetics and Microbiology, University of Regensburg, Regensburg, Germany
| | - Johannes Graf
- Institute of Biochemistry, Genetics and Microbiology, University of Regensburg, Regensburg, Germany
| | - Stefan Faderl
- Institute of Biochemistry, Genetics and Microbiology, University of Regensburg, Regensburg, Germany
| | - Jessica Schedlbauer
- Institute of Biochemistry, Genetics and Microbiology, University of Regensburg, Regensburg, Germany
| | - Nicholas Strieder
- Statistical Bioinformatics Department, Institute of Functional Genomics, University of Regensburg, Regensburg, Germany
| | - Bianca Förstl
- Institute of Biochemistry, Genetics and Microbiology, University of Regensburg, Regensburg, Germany
| | - Rainer Spang
- Statistical Bioinformatics Department, Institute of Functional Genomics, University of Regensburg, Regensburg, Germany
| | - Astrid Bruckmann
- Institute of Biochemistry, Genetics and Microbiology, University of Regensburg, Regensburg, Germany
| | - Rainer Merkl
- Institute of Biophysics and Physical Biochemistry, University of Regensburg, Regensburg, Germany
| | - Sonja Hombach
- Institute of Biochemistry, Genetics and Microbiology, University of Regensburg, Regensburg, Germany
| | - Markus Kretz
- Institute of Biochemistry, Genetics and Microbiology, University of Regensburg, Regensburg, Germany
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