Byunng Tae Park, Gyeong Jin Han, Jae Wan Park, Jae Woo Bae, HaHyung Kim
언어
영어(ENG)
URL
https://www.earticle.net/Article/A192426
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원문정보
초록
영어
Even though more than 90 lectins have been extracted from legumes, few of them bind specifically to sialic acid derivatives. In the present study, a sialic acid-binding protein has been purified from the bark of legume Maackia fauriei using fetuin-affinity chromatography. The eluted fractions from affinity column exhibited hemagglutination activity, thus they are designated as M. fauriei agglutinin (MFA). A typical purification method could produce at least 25.5 mg of pure MFA with a specific activity of 40.2 and a recovery yield of no less than 4.9%. A single N-terminal 20-amino acid sequence of MFA, SDELSFNINNFVPNQADLLF, was determined on an automatic Edman degradation amino acid sequencer, and it exhibits a high homology with lectins from M. amurensis which binds to sialylated oligosaccharide Neu5Aca2-3Galb1-3(Neu5Aca2-6)GalNAc. The hemagglutination activity of MFA with human erythrocytes was specifically inhibited by sialylated trisaccharide Neu5Aca2-3Galb1-4GlcNAc, but it was not inhibited by either Neu5Aca2-6Galb1-4GlcNAc or Neu5Aca2-3Galb1-4Glc/Neu5Aca2-6Galb1-4Glc. This activity of MFA was dependent on divalent cations. Many plant lectins are cytotoxic against cancer cells, with the effect differing with cell type; however, the mechanisms of action remain poorly understood. MFA exerts cytotoxic effects on human breast cancer MCF-7 cells, human melanoma G-361 cells, and human liver cancer SNU-449 cell lines but had no effect on the human colorectal cancer SNU-C1 cell line. It is especially noteworthy that the deleterious effect of MFA on the viability of MCF-7 was greater than that of MAH or wheat germ agglutinin.
저자
Byunng Tae Park [ Physical Pharmacy Laboratory, College of Pharmacy, Chung-Ang University ]
Gyeong Jin Han [ Physical Pharmacy Laboratory, College of Pharmacy, Chung-Ang University ]
Jae Wan Park [ Physical Pharmacy Laboratory, College of Pharmacy, Chung-Ang University ]
Jae Woo Bae [ Physical Pharmacy Laboratory, College of Pharmacy, Chung-Ang University ]
HaHyung Kim [ Physical Pharmacy Laboratory, College of Pharmacy, Chung-Ang University ]
본 학회는 화학, 생화학, 분자생물학, 미생물학, 식품공학, 의학, 약학, 유전공학 및 생물공학, 환경 및 기타 공업 등 전 분야의 탄수화물관련 이론과 기술을 연구 발전시키고 산학협동을 통해 이를 보급하여 국내 관련 산업의 발전 및 국민생활의 과학화에 기여하고자 하며, 이러한 목표와 비젼의 실현을 위해 회원들이 적극적인 참여와 활동을 전개하고자 한다.