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Antigenotoxic spinasterol from Cucurbita maxima flowers
I M Villaseñor1, P Lemon, A Palileo
1Natural Products Research Laboratory, University of the Philippines, Diliman, Quezon City, Philippines. chem@nicole.upd.edu.ph
Mutation Research
|June 10, 1996
Summary
Squash flower extract contains a potent antigenotoxic compound, spinasterol. This natural compound significantly reduced mutagenicity in a mouse model, offering potential for developing new protective agents.
Area of Science:
- Phytochemistry
- Toxicology
- Natural Products
Background:
- Squash flowers possess potential bioactive compounds.
- Antigenotoxic compounds can protect against DNA damage.
- Natural product research is crucial for novel therapeutic discovery.
Purpose of the Study:
- To isolate and identify the antigenotoxic constituent from squash flowers.
- To evaluate the antigenotoxic potential of the isolated compound in vivo.
- To characterize the chemical structure of the active isolate.
Main Methods:
- Solvent partitioning and vacuum liquid chromatography for isolation.
- In vivo micronucleus test to assess antigenotoxicity.
- Gas Chromatography-Mass Spectrometry-Mass Selective Detector (GC-MSD) and spectral analysis for identification.
Main Results:
- The isolate SQFwB2D from squash flower chloroform extract demonstrated significant antigenotoxicity.
- SQFwB2D reduced tetracycline mutagenicity by 64.7% at 100 mg/kg in mice.
- GC-MSD and spectral analyses identified the main component as spinasterol (24 alpha-ethyl-5 alpha-cholesta-7,trans-22-dien-3 beta-ol).
Conclusions:
- Spinasterol, isolated from squash flowers, is a potent antigenotoxic compound.
- The findings support the use of squash flower constituents as natural protective agents.
- Further research into spinasterol's mechanisms and applications is warranted.