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Establishment of Hepatocarcinoma in BALB/c-nu Mice and Investigation of the Therapeutic Effect of the Sanleng Jiashen Formula
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The Antitumor Constituents from Hedyotis Diffusa Willd.

Changfu Wang1, Xuegang Zhou2, Youzhi Wang3

  • 1College of TCM, Guangdong Pharmaceutical University, No. 280 Outside Loop East Road of Higher Education Mega Center, Panyu District, Guangzhou 510006, China. wangchangfu831124@163.com.

Molecules (Basel, Switzerland)
|December 1, 2017
PubMed
Summary

Hedyotis diffusa Willd. extracts show antitumor potential. New compounds 3 and 4, along with known compounds, displayed varying cytotoxicity against human cancer cell lines in vitro.

Keywords:
Hedyotis diffusa Willd.antitumorcerebrosidesiridoid glycosides

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Area of Science:

  • Phytochemistry
  • Pharmacology
  • Natural Products Chemistry

Background:

  • Hedyotis diffusa Willd. is a traditional Chinese medicine used for treating malignant tumors.
  • Previous research indicates that Hedyotis diffusa Willd. extracts possess significant antitumor activities.

Purpose of the Study:

  • To conduct a chemical investigation of Hedyotis diffusa Willd.
  • To evaluate the in vitro cytotoxicity of isolated compounds against a panel of human tumor cell lines.

Main Methods:

  • Isolation and structural elucidation of compounds from Hedyotis diffusa Willd. using chromatographic and spectroscopic techniques.
  • In vitro cytotoxicity assays using eight human tumor cell lines (HL-60, HeLa, HCT15, A459, HepG2, PC-3, CNE-2, BCG-823).

Main Results:

  • Four new compounds were isolated: three iridoid glycosides (Shecaoiridoidside A-C, 1-3) and one cerebroside (shecaocerenoside A, 4).
  • Six known iridoid compounds (5-10) were also identified.
  • New compound 3 showed significant cytotoxicity against all tested cell lines except HeLa (IC50: 9.6–62.2 µM).
  • New compound 4 exhibited moderate cytotoxicity across all cell lines (IC50: 33.6–89.3 µM).
  • Compounds 1, 9, and 7 displayed selective moderate cytotoxicity against specific cell lines (HCT15, A459, HepG2).

Conclusions:

  • Hedyotis diffusa Willd. is a source of novel compounds with promising cytotoxic activities.
  • The isolated iridoid glycosides and cerebroside warrant further investigation as potential anticancer agents.
  • Selective cytotoxicity observed for compounds 1, 9, and 7 suggests potential for targeted cancer therapy development.