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01-05-2018 | Original Paper

Leptin regulates the pro-inflammatory response in human epidermal keratinocytes

Authors: Moonyoung Lee, Eunyoung Lee, Sun Hee Jin, Sungjin Ahn, Sae On Kim, Jungmin Kim, Dalwoong Choi, Kyung-Min Lim, Seung-Taek Lee, Minsoo Noh

Published in: Archives of Dermatological Research | Issue 4/2018

Abstract

The role of leptin in cutaneous wound healing process has been suggested in genetically obese mouse studies. However, the molecular and cellular effects of leptin on human epidermal keratinocytes are still unclear. In this study, the whole-genome-scale microarray analysis was performed to elucidate the effect of leptin on epidermal keratinocyte functions. In the leptin-treated normal human keratinocytes (NHKs), we identified the 151 upregulated and 53 downregulated differentially expressed genes (DEGs). The gene ontology (GO) enrichment analysis with the leptin-induced DEGs suggests that leptin regulates NHKs to promote pro-inflammatory responses, extracellular matrix organization, and angiogenesis. Among the DEGs, the protein expression of IL-8, MMP-1, fibronectin, and S100A7, which play roles in which is important in the regulation of cutaneous inflammation, was confirmed in the leptin-treated NHKs. The upregulation of the leptin-induced proteins is mainly regulated by the STAT3 signaling pathway in NHKs. Among the downregulated DEGs, the protein expression of nucleosome assembly-associated centromere protein A (CENPA) and CENPM was confirmed in the leptin-treated NHKs. However, the expression of CENPA and CENPM was not coupled with those of other chromosome passenger complex like Aurora A kinase, INCENP, and survivin. In cell growth kinetics analysis, leptin had no significant effect on the cell growth curves of NHKs in the normal growth factor-enriched condition. Therefore, leptin-dependent downregulation of CENPA and CENPM in NHKs may not be directly associated with mitotic regulation during inflammation.

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Title: Leptin regulates the pro-inflammatory response in human epidermal keratinocytes
Authors: Moonyoung Lee
Eunyoung Lee
Sun Hee Jin
Sungjin Ahn
Sae On Kim
Jungmin Kim
Dalwoong Choi
Kyung-Min Lim
Seung-Taek Lee
Minsoo Noh
Publication date: 01-05-2018
Publisher: Springer Berlin Heidelberg
Published in: Archives of Dermatological Research / Issue 4/2018
Print ISSN: 0340-3696
Electronic ISSN: 1432-069X
DOI: https://doi.org/10.1007/s00403-018-1821-0

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Leptin regulates the pro-inflammatory response in human epidermal keratinocytes

Abstract

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

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