Applied Biochemistry and Biotechnology

, Volume 175, Issue 2, pp 657–665 | Cite as

Inhibitory Effects of Extract from G. lanceolata on LPS-Induced Production of Nitric Oxide and IL-1β via Down-regulation of MAPK in Macrophages

  • Dong Hwan Kim
  • Mi Eun Kim
  • Jun Sik Lee


Grateloupia lanceolata is a red alga native to coastal areas of East Asia. In this study, extract from G. lanceolata (EGL) was investigated for suppressive effects on lipopolysaccharide (LPS)-induced inflammatory responses in RAW 264.7 macrophages. EGL was found to have anti-inflammatory properties with the inhibition of nitric oxide (NO), pro-inflammatory cytokine production, and MAPK signaling in LPS-induced RAW 264.7 macrophages. Moreover, treatment of RAW 264.7 macrophage with EGL inhibited LPS-induced IL-1β production in a dose-dependent manner. These inhibitory effects were found with the blockage of p38 mitogen-activated protein kinases (MAPK), extracellular signal regulated kinases 1 and 2 (ERK1/2), and also c-Jun N-terminal kinases 1 and 2 (JNK1/2). These results indicated that anti-inflammatory actions of EGL in RAW 264.7 macrophages involved in the inhibition of LPS-induced p38MAPK/ERK/JNK signaling pathways. In addition, our findings suggest that EGL holds great promise for use in the treatment of various inflammatory diseases.


Extract from Grateloupia lanceolata Macrophage Inflammation NO MAPK signaling 


Conflict of Interest

The authors have no financial conflict of interest.


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Department of Biology, Immunology Research Laboratory, BK21-Plus Research Team for Bioactive Control Technology, College of Natural SciencesChosun UniversityGwangjuRepublic of Korea
  2. 2.Recobio Company, Business Incubator CenterChosun UniversityGwangjuRepublic of Korea

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