Dieckol, a Component of Ecklonia cava, Suppresses the Production of MDC/CCL22 via Down-Regulating STAT1 Pathway in Interferon-gamma Stimulated HaCaT Human Keratinocytes
Biomolecules & Therapeutics
;
: 238-244, 2015.
Article
in English
| WPRIM
| ID: wpr-178039
ABSTRACT
Macrophage-derived chemokine, C-C motif chemokine 22 (MDC/CCL22), is one of the inflammatory chemokines that controls the movement of monocytes, monocyte-derived dendritic cells, and natural killer cells. Serum and skin MDC/CCL22 levels are elevated in atopic dermatitis, which suggests that the chemokines produced from keratinocytes are responsible for attracting inflammatory lymphocytes to the skin. A major signaling pathway in the interferon-gamma (IFN-gamma)-stimulated inflammation response involves the signal transducers and activators of transcription 1 (STAT1). In the present study, we investigated the anti-inflammatory effect of dieckol and its possible action mechanisms in the category of skin inflammation including atopic dermatitis. Dieckol inhibited MDC/CCL22 production induced by IFN-gamma (10 ng/mL) in a dose dependent manner. Dieckol (5 and 10 muM) suppressed the phosphorylation and the nuclear translocation of STAT1. These results suggest that dieckol exhibits anti-inflammatory effect via the down-regulation of STAT1 activation.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Phosphorylation
/
Skin
/
Transducers
/
Dendritic Cells
/
Killer Cells, Natural
/
Lymphocytes
/
Monocytes
/
Down-Regulation
/
Keratinocytes
/
Interferon-gamma
Limits:
Humans
Language:
English
Journal:
Biomolecules & Therapeutics
Year:
2015
Type:
Article
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