Eun Ji Joo, Yang Hui, Youmie Park, Nam Young Park, Toshihiko Toida, Robert J. Linhardt, Yeong Shik Kim
언어
영어(ENG)
URL
https://www.earticle.net/Article/A192583
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원문정보
초록
영어
Acharan sulfate (AS), isolated from the giant African snail Achatina fulica, is a novel glycosaminoglycan, consisting primarily of the repeating disaccharide structure a-D-N-acetylglucosaminyl (1!4) 2-sulfoiduronic acid. AS shows anti-tumor activity in vitro and in vivo. Despite this activity, AS is only weakly cytotoxic towards cancer cells. We examine the interactions between AS and cell-surface proteins in an effort to explain this anti-tumor activity. Using flow cytometry and affinity column chromatography, we confirm that AS has strong affinity to specific cell-surface proteins including nucleolin (NL) in A549 human lung adenocarcinomas. Surprisingly, we found the translocation of NL from nucleus to cytoplasm under the stimulation of AS (100 mg/ml) in vitro. Also, as NL exits the nucleus, the levels of growth factors such as bFGF and signaling cascade proteins, such as p38, p53, and pERK, are altered. These results suggest that the communication between AS and NL plays a critical role on signal transduction in tumor inhibition.
저자
Eun Ji Joo [ Natural Products Research Institute, College of Pharmacy, Seoul National University ]
Yang Hui [ Natural Products Research Institute, College of Pharmacy, Seoul National University ]
Youmie Park [ Natural Products Research Institute, College of Pharmacy, Seoul National University ]
Nam Young Park [ Natural Products Research Institute, College of Pharmacy, Seoul National University ]
Toshihiko Toida [ Graduate School of Pharmaceutical Sciences, Chiba University ]
Robert J. Linhardt [ Departments of Chemistry and Chemical Biology, Biology and Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Center for Biotechnology and Interdisciplinary ]
Yeong Shik Kim [ Natural Products Research Institute, College of Pharmacy, Seoul National 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.