Chemical Research in Chinese Universities ›› 2018, Vol. 34 ›› Issue (1): 61-66.doi: 10.1007/s40242-018-7213-3

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Studies on New Steroidal Saponins from Allii macrostemonis Bulbus and Their Antitumor Activities

YAO Hua1, WANG Tong2, WU Qian2, LIU Ying2, LI Peng2, LI Xuwen2, JIN Yongri2   

  1. 1. Scientific Research Center, China-Japan Union Hospital of Jilin University, Changchun 130033, P. R. China;
    2. College of Chemistry, Jilin University, Changchun 130012, P. R. China
  • Received:2017-06-16 Online:2018-02-01 Published:2018-01-20
  • Contact: JIN Yongri,E-mail:jinyr@jlu.edu.cn E-mail:jinyr@jlu.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.31201295).

Abstract: Two new steroidal saponins(2, 3) and two known compounds(1, 4) were isolated from 75% ethanol extract of Allii macrostemonis bulbus by various spectral methods. The two new steroidal saponins were respectively elucidated as (25S)-26-O-β-D-glucopyranosyl-5α-furostanol-2α,3β,22,26-tetrol-3-O-β-D-glucopyranosyl(1→2)-[β-D- glucopyranosyl(1→3)]-β-D-glucopyranosyl(1→4)-β-D-galactopyranoside(2) and 26-O-β-D-glucopyranosyl-5α- furostanol-25(27)-ene-3β,22,26-tetrol-3-O-β-D-glucopyranosyl(1→2)-[β-D-glucopyranosyl(1→3)]-β-D-glucopyranosyl- (1→4)-β-D-galactopyranoside(3). Compound 4 was obtained from this medical plant for the first time. The activity experiments of proliferation inhibition on tumor cells were performed by cell counting kit-8(CCK-8) method for compound 2(25S-configuration) and its isomer(compound 1, 25R-configuration). The results show that compounds 1 and 2 have weak inhibition on lung cancer A549 cells, melanoma A375 cells and breast cancer MCF-7 cells as well as certain inhibitory effect on liver cancer HepG2 cells, and the inhibitory effect of compound 1 is stronger than that of compound 2.

Key words: Allii macrostemonis bulbus, Steroidal saponin, Structure identification, Proliferation inhibition, Cell counting kit-8(CCK-8) method