Mechanism of Macrophage-Derived Chemokine/CCL22 Production by HaCaT Keratinocytes
Annals of Dermatology
;
: 152-156, 2015.
Artículo
en Inglés
| WPRIM
| ID: wpr-156729
ABSTRACT
BACKGROUND:
CC chemokine ligand 17 (CCL17) and CCL22 are the functional ligands for CCR4. We previously reported that inhibitors of nuclear factor-kappa B and p38 mitogen-activated protein kinase (p38 MAPK), but not of extracellular signal-related kinase (ERK), inhibited tumor necrosis factor (TNF)-alpha- and interferon (IFN)-gamma-induced production of CCL17 by the human keratinocyte cell line, HaCaT. Further, an inhibitor of epidermal growth factor receptor (EGFR) enhanced the CCL17 production by these keratinocytes.OBJECTIVE:
To identify the mechanism underlying CCL22 production by HaCaT cells.METHODS:
We investigated the signal transduction pathways by which TNF-alpha and IFN-gamma stimulate HaCaT cells to produce CCL22 by adding various inhibitors.RESULTS:
TNF-alpha- and IFN-gamma-induced CCL22 production was inhibited by PD98059, PD153035, Bay 11-7085, SB202190, c-Jun N-terminal kinase (JNK) inhibitor II, and Janus kinase (JAK) inhibitor 1.CONCLUSION:
Our results indicate that CCL22 production in HaCaT cells is dependent on ERK, EGFR, p38 MAPK, JNK, and JAK and is mediated by different signal pathways from those regulating CCL17 production. Altogether, our previous and present results suggest that EGFR activation represses CCL17 but enhances CCL22 production by these cells.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Fosfotransferasas
/
Proteínas Quinasas
/
Transducción de Señal
/
Queratinocitos
/
Línea Celular
/
Interferones
/
Factor de Necrosis Tumoral alfa
/
Bahías
/
Proteínas Quinasas JNK Activadas por Mitógenos
/
Proteínas Quinasas p38 Activadas por Mitógenos
Tipo de estudio:
Estudio pronóstico
Límite:
Humanos
Idioma:
Inglés
Revista:
Annals of Dermatology
Año:
2015
Tipo del documento:
Artículo
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