Related Experiment Video
Updated: Jul 20, 2026
08:18
Preparation of Naringenin Solution for In Vivo Application
Published on: August 10, 2021
Steroidal saponins from Solanum nigrum
Xinlan Zhou1, Xiangjiu He, Guanghui Wang
1Department of Natural Products Chemistry, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China.
Journal of Natural Products
|August 29, 2006
Summary
Researchers isolated six new steroidal saponins and one known saponin from Solanum nigrum. Only degalactotigonin showed significant cytotoxicity against human tumor cell lines.
Area of Science:
- Natural Product Chemistry
- Pharmacology
Background:
- Solanum nigrum, a widely distributed plant, is a source of bioactive compounds.
- Steroidal saponins are a class of natural products with diverse biological activities.
Purpose of the Study:
- To isolate and characterize new steroidal saponins from Solanum nigrum.
- To evaluate the cytotoxic potential of isolated compounds against human cancer cell lines.
Main Methods:
- Isolation of compounds using chromatographic techniques.
- Structure elucidation via spectroscopic analysis (NMR, MS) and chemical methods.
- Cytotoxicity assays using MTT or similar methods on human tumor cell lines (HepG2, NCI-H460, MCF-7, SF-268).
Main Results:
- Six new steroidal saponins, designated solanigrosides C-H (compounds 2-7), were identified.
- One known saponin, degalactotigonin (compound 1), was also isolated.
- Degalactotigonin exhibited cytotoxicity against the tested cancer cell lines with IC50 values ranging from 0.25 to 4.49 microM.
- Compounds 2-7 did not show significant cytotoxicity in this study.
Conclusions:
- Solanum nigrum is a rich source of structurally diverse steroidal saponins.
- Degalactotigonin is a cytotoxic compound with potential for further investigation in cancer therapy.
- Further studies are warranted to explore the biological activities of solanigrosides C-H.
Related Concept Videos
01:25Esters to Carboxylic Acids: Saponification
Esters can be hydrolyzed to carboxylic acids under acidic or basic conditions. Base-promoted hydrolysis of esters is a nucleophilic acyl substitution reaction in which esters react with an aqueous base, followed by an acid to give carboxylic acids. This reaction is also known as saponification because it forms the basis for making soaps from fats.
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...
The reaction requires a base in stoichiometric amounts, which participates in the reaction and is not regenerated later. So, the base acts as a...
01:12Solvents
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
A...