Cytotoxicity of Triterpenes from Green Walnut Husks of Juglans mandshurica Maxim in HepG-2 Cancer CellsReportar como inadecuado




Cytotoxicity of Triterpenes from Green Walnut Husks of Juglans mandshurica Maxim in HepG-2 Cancer Cells - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

1

College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin 150040, China

2

College of Adult Education, Heilongjiang University of Chinese Medicine, Harbin 150040, China



These authors contributed equally to this work.





*

Author to whom correspondence should be addressed.



Academic Editor: Jean-Marc Sabatier

Abstract Among the classes of identified natural products, triterpenoids, one of the largest families, have been studied extensively for their diverse structures and variety of biological activities, including antitumor effects. In the present study, a phytochemical study of the green walnut husks of Juglans mandshurica Maxim led to the isolation of a new dammarane triterpene, 12β, 20R, 24R-trihydroxydammar-25-en-3-one 6, together with sixteen known compounds, chiefly from chloroform and ethyl acetate extracts. According to their structural characteristics, these compounds were divided into dammarane-type, oleanane- and ursane-type. Dammarane-type triterpenoids were isolated for the first time from the Juglans genus. As part of our continuing search for biologically active compounds from this plant, all of these compounds were also evaluated for their cytotoxic activities against the growth of human cancer cells lines HepG-2 by the MTT assay. The results were shown that 20S-protopanaxadiol, 2α,3β,23-trihydroxyolean-12-en-28-oic acid and 2α,3β,23-trihydroxyurs-12-en-28-oic acid exhibited better cytotoxicity in vitro with IC50 values of 10.32 ± 1.13, 16.13 ± 3.83, 15.97 ± 2.47 μM, respectively. Preliminary structure-activity relationships for these compounds were discussed. View Full-Text

Keywords: Juglans mandshurica Maxim; green walnut husks; triterpenoid aglycones; cytotoxic activity; structure-activity relationships Juglans mandshurica Maxim; green walnut husks; triterpenoid aglycones; cytotoxic activity; structure-activity relationships





Autor: Yuanyuan Zhou 1,†, Bingyou Yang 1,†, Zhaoxi Liu 1, Yanqiu Jiang 1, Yuxin Liu 1, Lei Fu 1, Xiaoli Wang 2 and Haixue Kuang 1,*

Fuente: http://mdpi.com/



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