Synthesis and Biological Evaluation of Andrographolide Derivatives as Anti-inflammatory Agent
Zeyu Zhu1, Haibing Duan1, Mei Jing1
1Institute of New Drug Research and Guangzhou Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine, Jinan University College of Pharmacy, Guangzhou, 510632, China.
Background:
Andrographolide (Andro) is a main active ingredient of the natural plant Andrographis paniculata, which has special effects on bacterial infections and inflammatory diseases.
Objective:
We previously synthesized Andrographolide derivatives AL-1 and investigated its anti-inflammatory activity. For further research, we decided to modify the structure of AL-1 and expected to have better antiinflammatory activity.
Methods:
By conjugating with anti-inflammatory and anti-bacterial group, we designed and synthesized the andrographolide derivative AL-2, AL-3 and AL-4. The anti-inflammatory activity of AL-2, AL-3 and AL-4 was also evaluated by detecting cell activity and Nitric Oxide (NO) release.
Results:
The new compounds AL-2, AL-3 and AL-4 increased cell viability in lipopolysaccharide (LPS)-induced RAW 264.7 cell, which could have a certain anti-inflammatory activity, and inhibited the release of NO in cells to reduce the inflammatory response of cells.
Conclusion:
The new compounds AL-2, AL-3 and AL-4 may be candidates of anti-inflammatory drugs in the future.
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