Lippens, S., Lefebvre, S., Gilbert, B., Sze, M., Devos, M., Verhelst, K., Vereecke, L., Mc Guire, C., Guerin, C., Vandenabeele, P., Pasparakis, M., Mikkola, M. L., Beyaert, R., Declercq, W. and van Loo, G. (2011). Keratinocyte-specific ablation of the NF-kappa B regulatory protein A20 (TNFAIP3) reveals a role in the control of epidermal homeostasis. Cell Death Differ., 18 (12). S. 1845 - 1854. LONDON: NATURE PUBLISHING GROUP. ISSN 1476-5403

Full text not available from this repository.

Abstract

The ubiquitin-editing enzyme A20 (tumor necrosis factor-alpha-induced protein 3) serves as a critical brake on nuclear factor kappa B (NF-kappa B) signaling. In humans, polymorphisms in or near the A20 gene are associated with several inflammatory disorders, including psoriasis. We show here that epidermis-specific A20-knockout mice (A20(EKO)) develop keratinocyte hyperproliferation, but no signs of skin inflammation, such as immune cell infiltration. However, A20(EKO) mice clearly developed ectodermal organ abnormalities, including disheveled hair, longer nails and sebocyte hyperplasia. This phenotype resembles that of mice overexpressing ectodysplasin-A1 (EDA-A1) or the ectodysplasin receptor (EDAR), suggesting that A20 negatively controls EDAR signaling. We found that A20 inhibited EDAR-induced NF-kappa B signaling independent from its de-ubiquitinating activity. In addition, A20 expression was induced by EDA-A1 in embryonic skin explants, in which its expression was confined to the hair placodes, known to be the site of EDAR expression. In summary, our data indicate that EDAR-induced NF-kappa B levels are controlled by A20, which functions as a negative feedback regulator, to assure proper skin homeostasis and epidermal appendage development. Cell Death and Differentiation (2011) 18, 1845-1853; doi:10.1038/cdd.2011.55; published online 13 May 2011

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Lippens, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lefebvre, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gilbert, B.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sze, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Devos, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Verhelst, K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vereecke, L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mc Guire, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Guerin, C.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Vandenabeele, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pasparakis, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mikkola, M. L.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Beyaert, R.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Declercq, W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
van Loo, G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-485007
DOI: 10.1038/cdd.2011.55
Journal or Publication Title: Cell Death Differ.
Volume: 18
Number: 12
Page Range: S. 1845 - 1854
Date: 2011
Publisher: NATURE PUBLISHING GROUP
Place of Publication: LONDON
ISSN: 1476-5403
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
ECTODYSPLASIN-A RECEPTOR; ECTODERMAL DYSPLASIA; MOUSE; DEATH; DISEASE; EDAR; IDENTIFICATION; ACTIVATION; EXPRESSION; INHIBITORMultiple languages
Biochemistry & Molecular Biology; Cell BiologyMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/48500

Downloads

Downloads per month over past year

Altmetric

Export

Actions (login required)

View Item View Item