Saxifragifolin B D Triterpene Saponin Isolation

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Solution Overview

Problem

Current anticancer agents, such as Taxol, have significant side effects and affect both cancer and normal cells due to their cytotoxicity and low water solubility, necessitating the development of new agents with reduced side effects and improved specificity for cancer cells.

Innovation Solution

The isolation and use of triterpene saponin compounds, specifically saxifragifolin B and saxifragifolin D, from Androsace umbellata Merr. extracts, which inhibit cancer cell growth and induce apoptosis with minimal impact on normal cells, utilizing a method involving extraction with low-grade alcohols, solvent fractionation, and chromatography to obtain effective fractions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional anticancer compounds (e.g., Taxol) are used, then cancer cell growth is inhibited, but side effects increase and normal cells are also affected

Engineering Contradiction:
Improveanticancer activityVSAvoidside effects and cytotoxicity to normal cells
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and isolates specific active compounds (saxifragifolin B and D) from the plant material Androsace umbellata. By identifying and separating the specific responsible molecules from the complex plant extract, the invention achieves purified anticancer agents with defined structures and mechanisms, reducing the harmful effects associated with crude extracts while maintaining efficacy.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent modifies the chemical structure and properties of the anticancer compounds through systematic investigation of different plant materials and extraction conditions. By optimizing parameters such as solvent types, extraction methods, and purification conditions, the invention produces compounds with improved pharmacological profiles that maintain cancer cell inhibition while reducing toxicity to normal cells.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If conventional anticancer compounds are used, then cancer cells are targeted, but water solubility is poor leading to administration difficulties

Engineering Contradiction:
Improvecancer cell targetingVSAvoidwater solubility and administration
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent employs intermediary substances and methods to overcome the poor water solubility of the isolated compounds. Through careful selection of solvent systems during extraction and purification, and by considering the physical chemistry of the compounds, the invention facilitates effective delivery and administration of the anticancer agents while maintaining their cancer-cell-targeting properties.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If natural product research is pursued, then new anticancer agents with reduced side effects can be found, but the isolation and identification process is complex and time-consuming

Engineering Contradiction:
Improveside effectsVSAvoidisolation and identification process
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent divides the complex plant material into different fractions based on their chemical properties and biological activities. By segmenting the crude extract into separable components through systematic fractionation, the invention simplifies the identification process and isolates specific active principles, making the complex natural product research more manageable and efficient.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent incorporates feedback mechanisms through biological activity testing at various stages of the isolation process. By testing fractions and compounds for anticancer activity and comparing results, the invention guides the purification process toward the most promising candidates, reducing the overall complexity and time required for identification while ensuring the selection of agents with reduced side effects.

Inventive Principle:
Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The compounds effectively inhibit the growth and induce apoptosis of various cancer cells, including lung, breast, uterine, and colon cancer cells, with reduced side effects and potential for use in treating and preventing cancers with varying administration forms.

Implementation Method 1

a method involving extraction with low-grade alcohols, solvent fractionation, and chromatography to obtain effective fractions

Methodology Applied
Scientific EffectLiquid-liquid extraction: Liquid-Liquid Extraction

Implementation Method 2

a method involving extraction with low-grade alcohols, solvent fractionation, and chromatography to obtain effective fractions

Methodology Applied
Scientific EffectChromatography: Chromatography

Data Source

PatentUS7960352B2Anti-cancer activity of Androsace umbellata Merr. extract and contained triterpene saponin
Publication Date: 2011.06.14 RES & BUSINESS FOUND SUNGKYUNKWAN UNIV
  • US7960352B2 patent drawing
  • US7960352B2 patent drawing
  • US7960352B2 patent drawing

AI summary

The present invention relates to an Androsace umbellata Merr. extract having anticancer activity and a triterpene saponin compound isolated therefrom, more particularly to an Androsace umbellata (Lour.) Merr. extract, triterpene saponin compounds isolated therefrom, saxifragifolin B and saxifragifolin D, which inhibit the growth of cancer cells and induce apoptosis of cancer cells, and thus are useful for preparing a composition for preventing and treating cancers and a method of isolating a triterpene saponin compound from an Androsace umbellata Merr. extract.