EGFR controls hair shaft differentiation in a p53-independent manner

N. Amberg, P.A. Sotiropoulou, G. Heller, B.M. Lichtenberger, M. Holcmann, B. Camurdanoglu, T. Baykuscheva-Gentscheva, C. Blanpain, M. Sibilia, IScience 15 (2019) 243–256.

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Abstract
Epidermal growth factor receptor (EGFR) signaling controls skin development and homeostasis inmice and humans, and its deficiency causes severe skin inflammation, which might affect epidermalstem cell behavior. Here, we describe the inflammation-independent effects of EGFR deficiency dur-ing skin morphogenesis and in adult hair follicle stem cells. Expression and alternative splicing analysisof RNA sequencing data from interfollicular epidermis and outer root sheath indicate that EGFR con-trols genes involved in epidermal differentiation and also in centrosome function, DNA damage, cellcycle, and apoptosis. Genetic experiments employingp53deletion in EGFR-deficient epidermis revealthat EGFR signaling exhibitsp53-dependent functions in proliferative epidermal compartments, aswell asp53-independent functions in differentiated hair shaft keratinocytes. Loss of EGFR leads toabsence of LEF1 protein specifically in the innermost epithelial hair layers, resulting in disorganizationof medulla cells. Thus, our results uncover important spatial and temporal features of cell-autonomousEGFR functions in the epidermis.
Publishing Year
Date Published
2019-05-31
Journal Title
iScience
Volume
15
Page
243-256
ISSN
IST-REx-ID

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Amberg N, Sotiropoulou PA, Heller G, et al. EGFR controls hair shaft differentiation in a p53-independent manner. iScience. 2019;15:243-256. doi:10.1016/j.isci.2019.04.018
Amberg, N., Sotiropoulou, P. A., Heller, G., Lichtenberger, B. M., Holcmann, M., Camurdanoglu, B., … Sibilia, M. (2019). EGFR controls hair shaft differentiation in a p53-independent manner. IScience, 15, 243–256. https://doi.org/10.1016/j.isci.2019.04.018
Amberg, Nicole, Panagiota A. Sotiropoulou, Gerwin Heller, Beate M. Lichtenberger, Martin Holcmann, Bahar Camurdanoglu, Temenuschka Baykuscheva-Gentscheva, Cedric Blanpain, and Maria Sibilia. “EGFR Controls Hair Shaft Differentiation in a P53-Independent Manner.” IScience 15 (2019): 243–56. https://doi.org/10.1016/j.isci.2019.04.018.
N. Amberg et al., “EGFR controls hair shaft differentiation in a p53-independent manner,” iScience, vol. 15, pp. 243–256, 2019.
Amberg N, Sotiropoulou PA, Heller G, Lichtenberger BM, Holcmann M, Camurdanoglu B, Baykuscheva-Gentscheva T, Blanpain C, Sibilia M. 2019. EGFR controls hair shaft differentiation in a p53-independent manner. iScience. 15, 243–256.
Amberg, Nicole, et al. “EGFR Controls Hair Shaft Differentiation in a P53-Independent Manner.” IScience, vol. 15, Elsevier, 2019, pp. 243–56, doi:10.1016/j.isci.2019.04.018.
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