Bioactive triterpenoids from Sambucus javanica Blume.

Area of Science:

• Phytochemistry
• Natural Products Chemistry
• Immunology

Background:

• Sambucus javanica Blume is a plant with a history of traditional medicinal use.
• Triterpenes are a class of naturally occurring compounds with diverse biological activities.
• Nitric oxide (NO) plays a crucial role in inflammatory processes.

Purpose of the Study:

• To isolate and identify chemical constituents from the aerial parts of Sambucus javanica.
• To evaluate the inhibitory effects of isolated compounds on nitric oxide production.

Main Methods:

• Phytochemical isolation techniques (e.g., chromatography) were employed.
• Structural elucidation of isolated compounds using spectroscopic methods.
• In vitro assays using lipopolysaccharide (LPS)-activated RAW264.7 macrophage cell lines to measure nitric oxide production.

Main Results:

• A new triterpene, javablumine A (1), was isolated along with six known triterpenes: ursolic acid (2), pomolic acid (3), oleanic acid (4), 2α-hydroxy-oleanolic acid (5), α-amyrin (6), and lupeol palmitate (7).
• Javablumine A (1) and pomolic acid (3) demonstrated inhibitory effects on nitric oxide production.
• The IC50 values for javablumine A (1) and pomolic acid (3) were 17.4 μM and 26.2 μM, respectively.

Conclusions:

• The aerial parts of Sambucus javanica are a source of bioactive triterpenes.
• Javablumine A and pomolic acid possess anti-inflammatory properties by inhibiting nitric oxide production.
• These findings support the potential of Sambucus javanica derivatives as therapeutic agents for inflammatory conditions.