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Nudiloid Z, a New Labdane-Type Diterpenoid From Callicarpa nudiflora With Anti-Inflammatory Activity
Qi Li1,2, Bo Li1, Yan-Ling Tang1
1Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Characteristic Plant Extraction Laboratory Co., Ltd., Yunnan Key Laboratory of Research and Development for Natural Products, Institute of International Rivers and Eco-Security, School of Pharmacy, School of Chemical Science and Technology, Yunnan University, Kunming, China.
A novel compound, Nudiloid Z, isolated from Callicarpa nudiflora, demonstrates significant anti-inflammatory properties by inhibiting lactate dehydrogenase release and reducing Interleukin 1β levels.
Area of Science:
- Natural Product Chemistry
- Pharmacology
Background:
- Callicarpa nudiflora is a plant source of bioactive compounds.
- Diterpenoids are a class of natural products with diverse biological activities.
Purpose of the Study:
- To isolate and characterize new compounds from Callicarpa nudiflora.
- To evaluate the anti-inflammatory potential of isolated compounds.
Main Methods:
- Isolation and purification of compounds using chromatographic techniques.
- Structure elucidation using comprehensive spectroscopic analyses (NMR, MS).
- In vitro anti-inflammatory assay measuring lactate dehydrogenase (LDH) release and Interleukin 1β (IL-1β) levels.
Main Results:
- A new labdane-type diterpenoid, Nudiloid Z (1), was isolated along with twelve known compounds.
- Nudiloid Z (1) features a unique epoxide ring at C-12 and C-13.
- Compound 1 showed significant inhibition of LDH release (IC50 = 3.30 ± 0.47 µM) and dose-dependent reduction of IL-1β levels, indicating anti-inflammatory activity.
Conclusions:
- Nudiloid Z is a novel labdane-type diterpenoid with potent anti-inflammatory effects.
- Callicarpa nudiflora is a promising source for discovering new anti-inflammatory agents.