Earticle

초록

영어

Seaweed extracts have recently been found to have biological activities including effects on the immune system, anticoagulant system, cancer, etc. Capsosiphon fulvescens is a green alga that is widely distributed in the Southern coastal area of Korea. Crude polysaccharides were obtained from this seaweed collected at a coastal area of Wando, Korea, mainly by dilute acid extraction, ethanol precipitation and CaCl2 precipitation. It was further purified by DEAE-cellulose column chromatography and its chemical composition, structural analysis, immunostimulating activity, anticoagulation activity, anticancer activity and osteogenesis was determined. From HPLC analysis molecular mass of this polysaccharide was determined to be approximately 385 kDa. Elemental analysis of CPS, The estimation of only four elements, that is carbon(31.9398% w/w), hydrogen(4.9022% w/w), nitrogen(0.6318% w/w) and sulfur(6.2166% w/w), was undertaken. CPS stimulated the production of TNF-α to a level 80 times greater than the normal. Also CPS induced IL-6 secretion from RAW264.7 cells in a dose-dependent manner. Moreover, Cf–PS treatment increased the expressions of cyclooxygenase-2 (COX-2) and the inducible form of nitric oxide (iNOS). The CPS could significantly increase anticoagulant activity, which was especially characterized by activated partial thrombloplastin time (APTT) and thrombloplatin time (TT). Two hundred ug/ml of CPS delayed the APTT up to 61 s. And TT of CPS reached up to 32 s. MTT assay showed that the CPS significantly inhibited the proliferation of cultured human MKN-45 gastric cancer cells in a dose-dependent manner. Also nitrite plays an important role in the formation of carcinogenic nitrosamine. One percentage of CPS eliminated the nitrite up to approximately 50%. CPS plays a role for osteoblastic bone metastasis by promoting both osteoblasts proliferation and apoptosis of osteoclasts. One mg/ml of CPS increased the osteoblast cell growth up to approximately 150% and decreased the osteoclast cell growth up to approximately 60% by induction of apoptosis.

저자

• Na, Ye Seul [ Department of Biotechnology and The Biomaterial Engineering Research Center, The Catholic University of Korea, Bucheon ]
• Woo Jung Kim [ Department of Biotechnology and The Biomaterial Engineering Research Center, The Catholic University of Korea, Bucheon ]
• Sung Min Kim [ Department of Biotechnology and The Biomaterial Engineering Research Center, The Catholic University of Korea, Bucheon ]
• Yean Kyoung Koo [ Natural Products Research Institute, College of Pharmacy, Seoul National University ]
• Hye Sook Yun [ Natural Products Research Institute, College of Pharmacy, Seoul National University ]
• Yong-Il Park [ Department of Biotechnology and The Biomaterial Engineering Research Center, The Catholic University of Korea, Bucheon ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국당과학회 학술대회

• 간기

  연간

• 수록기간

  2006~2022

• 십진분류

  KDC 517 DDC 614