UVB induces HIF-1α-dependent TSLP expression via the JNK and ERK pathways

Yeonsue Jang, Sang H. Jeong, Yoon Hee Park, Hyun C. Bae, Hana Lee, Woo In Ryu, Gil-Hong Park, Sang Wook Son

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Thymic stromal lymphopoietin (TSLP) may have a key role in the initiation and maintenance of allergic inflammatory diseases, including atopic dermatitis. The present study revealed that UVB radiation exposure could induce TSLP expression in human keratinocytes and a human skin equivalent model. In addition, we investigated the regulatory mechanism of UVB-induced TSLP expression in keratinocytes. TSLP expression was upregulated by transfection with pcDNA3-hypoxia-inducible factor (HIF)-1α (P402A and P564A), which stably expresses HIF-1α protein. UVB-induced TSLP induction in keratinocytes was suppressed in the treatment of mitogen-activated protein kinase inhibitors or small interfering RNAs against HIF-1α. The results of chromatin immunoprecipitation assays indicate the direct involvement of HIF-1α in UVB-mediated TSLP induction. Taken together, these findings indicate that UVB exposure may increase TSLP expression through a HIF-1α-dependent mechanism via the c-JUN N-terminal kinase and extracellular signal-regulated kinase pathways in human keratinocytes. Our data showed that UVB-induced TSLP might increase secretion of the T-helper type 2-attracting chemokine (c-c motif) ligand 17 by human dendritic cells. The present study suggests an important role of HIF-1α in UVB-mediated immune response in keratinocytes.

Original languageEnglish
Pages (from-to)2601-2608
Number of pages8
JournalJournal of Investigative Dermatology
Volume133
Issue number11
DOIs
Publication statusPublished - 2013 Nov 1

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Hypoxia-Inducible Factor 1
MAP Kinase Signaling System
Keratinocytes
thymic stromal lymphopoietin
Chromatin Immunoprecipitation
Extracellular Signal-Regulated MAP Kinases
Atopic Dermatitis
Protein Kinase Inhibitors
Mitogen-Activated Protein Kinases
Chemokines
Dendritic Cells
Small Interfering RNA
Chromatin
Transfection
Assays
Skin
Phosphotransferases
Maintenance
Ligands
Radiation

ASJC Scopus subject areas

  • Dermatology
  • Biochemistry
  • Cell Biology
  • Molecular Biology

Cite this

UVB induces HIF-1α-dependent TSLP expression via the JNK and ERK pathways. / Jang, Yeonsue; Jeong, Sang H.; Park, Yoon Hee; Bae, Hyun C.; Lee, Hana; Ryu, Woo In; Park, Gil-Hong; Son, Sang Wook.

In: Journal of Investigative Dermatology, Vol. 133, No. 11, 01.11.2013, p. 2601-2608.

Research output: Contribution to journalArticle

Jang, Yeonsue ; Jeong, Sang H. ; Park, Yoon Hee ; Bae, Hyun C. ; Lee, Hana ; Ryu, Woo In ; Park, Gil-Hong ; Son, Sang Wook. / UVB induces HIF-1α-dependent TSLP expression via the JNK and ERK pathways. In: Journal of Investigative Dermatology. 2013 ; Vol. 133, No. 11. pp. 2601-2608.
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