Keratinocyte-derived IL-1β induces PPARG downregulation and PPARD upregulation in human reconstructed epidermis following barrier impairment.
Keratinocyte-derived IL-1β induces PPARG downregulation and PPARD upregulation in human reconstructed epidermis following barrier impairment.
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角质形成细胞衍生的 IL-1β 在屏障损伤后的人重建表皮中诱导 PPARG 下调和 PPARD 上调。
DOI:
10.1111/exd.14323
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发表时间:
2021-09
影响因子:
3.6
通讯作者:
Dubrac S
中科院分区:
文献类型:
--
作者:
Blunder S;Krimbacher T;Moosbrugger-Martinz V;Gruber R;Schmuth M;Dubrac S
Peroxisome proliferator‐activated receptors (PPARs) are a family of nuclear hormone receptors. In skin, PPARs modulate inflammation, lipid synthesis, keratinocyte differentiation and proliferation and thus are important for skin barrier homeostasis. Accordingly, PPAR expression is altered in various skin conditions that entail epidermal barrier impairment, that is atopic dermatitis (AD) and psoriasis. Using human epidermal equivalents (HEEs), we established models of acute epidermal barrier impairment devoid of immune cells. We assessed PPAR and cytokine expression after barrier perturbation and examined effects of keratinocyte‐derived cytokines on PPAR expression. We show that acetone or SDS treatment causes graded impairment of epidermal barrier function. Furthermore, we demonstrate that besides IL‐1β and TNFα, IL‐33 and TSLP are highly relevant markers for acute epidermal barrier impairment. Both SDS‐ and acetone‐mediated epidermal barrier impairment reduce PPARG expression levels, whereas only SDS enhances PPARD expression. In line with findings in IL‐1β and TNFα‐treated HEEs, abrogation of IL‐1 signalling restores PPARG expression and limits the increase of PPARD expression in SDS‐induced epidermal barrier impairment. Thus, following epidermal barrier perturbation, keratinocyte‐derived IL‐1β and partly TNFα modulate PPARG and PPARD expression. These results emphasize a role for PPARγ and PPARβ/δ in acute epidermal barrier impairment with possible implications for diseases such as AD and psoriasis.
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影响因子:
3
作者:
Balato, Anna;Di Caprio, Roberta;Ayala, Fabio
通讯作者:
Ayala, Fabio
影响因子:
3.6
作者:
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通讯作者:
Feingold, KR
影响因子:
6.5
作者:
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通讯作者:
Feingold, Kenneth R.
影响因子:
5.5
作者:
Elias, Peter M.
通讯作者:
Elias, Peter M.
影响因子:
3.6
作者:
Chamcheu JC;Chaves-Rodriquez MI;Adhami VM;Siddiqui IA;Wood GS;Longley BJ;Mukhtar H
通讯作者:
Mukhtar H