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Algae > Volume 22(4); 2007 > Article
Algae 2007;22(4): 333-338. doi: https://doi.org/10.4490/algae.2007.22.4.333
Immunomodulating Activity of a Fucoidan Isolated from Korean Undaria pinnatifida Sporophyll
Yung-Choon Yoo1, Woo-Jung Kim2, So-Yeon Kim1, Sung-Min Kim2, Mi-Kyung Chung3, Joo-Woong Park3, Hyun-Hyo Suh4, Kyung-Bok Lee1 and Yong-Il Park2*

1Dept. of Microbiology, Konyang University, Konyang University Hospital 685, Gasuwon-dong, Daejeon 302-718, Korea
2Dept. of Biotechnology and The Biomaterial Engineering Research Center, The Catholic University of Korea, 43-1 Yokkok 2-dong, Wonmi-gu, Bucheon, Gyeonggi-do 420-743, Korea
3Biomedicine Research Group, Hanrib LifeTech, Bio 21 Center, Munsan, Jinju, Gyeongnam 600-844, Korea
4Dept. of Environmental Engineering, Jinju National University, Jinju, Gyeongnam 660-758, Korea
A fucoidan, isolated from Korean Undaria pinnatifida spoprophyll (UP-F), was investigated for its immunomodulating activity on murine macrophages and splenocytes, and its activity was compared with that of fucoidan from Fucus vesiculosus (FV-F). Treatment of UP-F resulted in inhibition of the growth of murine macrophage RAW 264.7 cells, but its cytotoxicity was not observed in normal murine splenocytes. FV-F was shown to be highly cytotoxic to both immune cells, and its cytotoxic activity was higher than that of UP-F. Treatment of UP-F induced TNF-α in a dose-dependent manner from two types of macrophages, RAW 264.7 cells and murine peritoneal macrophages. The TNF-α-inducing activity of UP-F was higher than that of FV-F. UP-F also actively induced chemokines (RANTES and MIP-1α) from RAW 264.7 cells. Furthermore, treatment of UP-F gave rise to activation of murine splenocytes to produce cytokine (IL-6) and chemokines (RANTES and MIP-1α), showing significantly higher activity than that of FV-F. These results indicate that UP-F is less cytotoxic to immune cells than FV-F, and possesses immunomodulating activity to produce cytokines and chemokines from macrophages and splenocytes.
Key words: fucoidan, immunomodulating activity, Undaria pinnatifida sporophyll

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