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Anti-inflammatory effects of ethanolic extract from Sargassum horneri (Turner) C. Agardh on lipopolysaccharide-stimulated macrophage activation via NF-κB pathway regulation.
Kim, Mi Eun; Jung, Yun Chan; Jung, Inae; Lee, Hee-Woo; Youn, Hwa-Young; Lee, Jun Sik.
Affiliation
  • Kim ME; Department of Biology, Immunology Research Lab, BK21-plus Research Team for Bioactive Control Technology, College of Natural Sciences, Chosun University , Dong-gu, Gwangju , Republic of Korea .
Immunol Invest ; 44(2): 137-46, 2015.
Article in En | MEDLINE | ID: mdl-25140761
ABSTRACT
Inflammation is major symptom of the innate immune response by infection of microbes. Macrophages, one of immune response related cells, play a role in inflammatory response. Recent studies reported that various natural products can regulate the activation of immune cells such as macrophage. Sargassum horneri (Turner) C. Agardh is one of brown algae. Recently, various seaweeds including brown algae have antioxidant and anti-inflammatory effects. However, anti-inflammatory effects of Sargassum horneri (Turner) C. Agardh are still unknown. In this study, we investigated anti-inflammatory effects of ethanolic extract of Sargassum horneri (Turner) C. Agardh (ESH) on RAW 264.7 murine macrophage cell line. The ESH was extracted from dried Sargassum horneri (Turner) C. Agardh with 70% ethanol and then lyophilized at -40 °C. ESH was not cytotoxic to RAW 264.7, and nitric oxide (NO) production induced by LPS-stimulated macrophage activation was significantly decreased by the addition of 200 µg/mL of ESH. Moreover, ESH treatment reduced mRNA level of cytokines, including IL-1ß, and pro-inflammatory genes such as iNOS and COX-2 in LPS-stimulated macrophage activation in a dose-dependent manner. ESH was found to elicit anti-inflammatory effects by inhibiting ERK, p-p38 and NF-κB phosphorylation. In addition, ESH inhibited the release of IL-1ß in LPS-stimulated macrophages. These results suggest that ESH elicits anti-inflammatory effects on LPS-stimulated macrophage activation via the inhibition of ERK, p-p38, NF-κB, and pro-inflammatory gene expression.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Plant Extracts / Signal Transduction / NF-kappa B / Sargassum / Macrophage Activation / Macrophages / Anti-Inflammatory Agents Limits: Animals Language: En Journal: Immunol Invest Journal subject: ALERGIA E IMUNOLOGIA Year: 2015 Type: Article

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Plant Extracts / Signal Transduction / NF-kappa B / Sargassum / Macrophage Activation / Macrophages / Anti-Inflammatory Agents Limits: Animals Language: En Journal: Immunol Invest Journal subject: ALERGIA E IMUNOLOGIA Year: 2015 Type: Article