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논문 기본 정보

자료유형
학술저널
저자정보
Jin, Wenyi (College of Pharmacy, Chungnam National University) Thuong, Phuong Thien (College of Pharmacy, Chungnam National University) Su, Nguyen Duy (College of Pharmacy, Chungnam National University) Min, Byung-Sun (College of Pharmacy, Catholic University of Daegu) Son, Kun-Ho (Department of food and Nutrition Andong National University) Chang, Hyeun-Wook (College of Pharmacy, Yeungnam University) Kim, Hyun-Pyo (College of Pharmacy Kangwon National University) Kang, Sam-Sik (Natural Products Research Institute and College of Pharmacy, Seoul National University) Sok, Sok (College of Pharmacy, Chungnam National University) Bae, Ki-Hwan (College of Pharmacy, Chungnam National University)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제30권 제3호
발행연도
2007.1
수록면
275 - 281 (7page)

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Phytochemical investigation of Acer okamotoanum leaf and twig led to the isolation of two coumarinolignans, cleomiscosin A (1) and cleomiscosin C (2). Here, we found that 2 dose-dependently inhibits LDL oxidation mediated by either catalytic copper ions (Cu$^{2+}$) or free radicals generated with the azo compound 2,2'-azobis-(2-amidinopropane)dihydro-chloride (AAPH)with IC$_{50}$s of 29.5 and 11.9 ${\mu}$M, respectively. By electrophoretic analysis, we also observed that 2 protects apolipoprotein B-100 (apoB-100) against Cu$^{2+}$-induced fragmentation (65.3% inhibition at 5 ${\mu}$M). Furthermore, fluorescence analyses clearly indicated that both 4 and 2 protect against the oxidative modification of apoB-100 induced by either Cu$^{2+}$or HOCI (1, IC$_{50}$s of 13.4and 8.1 ${\mu}$M, respectively; 2, IC$_{50}$s of 23.6 and 3.9 ${\mu}$M, respectively). These findings suggest that 1 and 2 could be beneficial in preventing LDL oxidation in atherosclerotic lesions.

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