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자료유형
학술대회자료
저자정보
Kim, Hyeon-Seon (College of Pharmacy, Chungbuk National University) Lee, Jae-Kwon (College of Pharmacy, Chungbuk National Universit) Yang, In-Ho (College of Pharmacy, Chungbuk National Universit) Lee, Young-Ran (College of Pharmacy, Chungbuk National Universit) Shin, Hyun-Jeong (College of Pharmacy, Chungbuk National Universit) Park, Eun-Ju (College of Pharmacy, Chungbuk National Universit) Park, Hyung-Seok (College of Pharmacy, Chungbuk National Universit) Kim, Yeong-Shik (College of Pharmacy, Chungbuk National Universit) Lee, Chong-Kil (College of Pharmacy, Chungbuk National University)
저널정보
대한약학회 대한약학회 학술대회 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2
발행연도
2002.1
수록면
3,072 - 3,073 (2page)

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Acharan sulfate. a new glycosaminoglycan(GAG) isolated from the giant African snail Achatina fulica. was shown to have antitumor activity in vivo. To elucidate the mechanisms for the antitumor activity. we examined its impact on professional antigen presenting cells such as macrophages and dendritic cells (DCs). Acharan sulfate stimulated cytokine production (TNF-a and IL -1b). nitric oxide release. and morphological changes in a dose dependent manner on a macrophage cell Line Raw 264.7 cells. The differentiation-inducing activity of acharan sulfate was examined on immature DCs. Immature DCs were generated from mouse bone marrow (BM) cells by culturing with GM-CSF and IL-4, and then stimulated with acharan sulfate. The resultant DCs were then examined for funcional and phenotypic properties. It was found that acharan sulfate could induce functional maturation of immature DCs as determined by increased allogenic mixed lymphocyte reaction (MLR) and IL-12 production. Phenotypic. analysis for the expression of class II MHC molecules and major co-stimulatory molecules such as B7-1, B7-2 and CD40 also confirmed that acharan sulfate could induce maturation of immature DCs. These results suggest that that the antitumor activity of acharan sulfate is at least in part due to activation adn induction of differentiation of professinal antigen presenting cells. (omitted)

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