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Related Experiment Videos

Cytotoxic withanolides from Physalis angulata L.

Qing-Ping He1, Lei Ma, Jie-Ying Luo

  • 1Shanghai Institute of Materia Medica, Shanghai 201203, PR. China.

Chemistry & Biodiversity
|March 21, 2007
PubMed
Summary

Four new withanolides were discovered in Physalis angulata. Certain compounds showed significant anticancer activity against human colorectal and lung cancer cells.

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Area of Science:

  • Natural Products Chemistry
  • Pharmacology

Background:

  • Physalis angulata L. is a plant species known for its diverse phytochemical constituents.
  • Withanolides are a class of steroidal lactones with a wide range of biological activities.

Purpose of the Study:

  • To isolate and characterize new withanolides from Physalis angulata.
  • To evaluate the antiproliferative activities of isolated compounds against human cancer cell lines.

Main Methods:

  • Extraction and isolation of compounds from the MeOH extract of aerial parts of Physalis angulata.
  • Structure elucidation using comprehensive spectroscopic techniques (NMR, HR-MS).
  • In vitro antiproliferative assays against HCT-116 and NCI-H460 cancer cell lines.

Main Results:

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  • Four new withanolides, physagulins L-O (1-4), and seven known withanolides (5-11) were identified.
  • Compound 5 demonstrated potent activity against HCT-116 cells (IC50 = 1.64 µM).
  • Compound 9 showed significant cytotoxicity against NCI-H460 cells (IC50 = 0.43 µM).

Conclusions:

  • The study successfully isolated and characterized novel withanolides from Physalis angulata.
  • The findings highlight the potential of these withanolides as anticancer agents.