Progresses in ethnopharmacological use, phytochemistry, pharmacology, clinical application, pharmacokinetics, quality control and safety of SappanLignum (Sumu): A review.
Chen Weiying, Li Xiaocui, Hu Bing, Huang Yishu, Zhong Jinlang, Wu Yunshan, Xu Fangfang, Du Haifang, Liu Bo, Liu Zhigang
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE: Sappan Lignum (Sumu), the heartwood of Caesalpinia sappan L., has been used for more than 1000 years in traditional Chinese medicine to treat blood stasis syndromes, gynecological disorders, traumatic injuries, and inflammatory conditions, as documented in classical pharmacopoeias. AIM OF THE REVIEW: To comprehensively integrate fragmented knowledge on Sumu's ethnomedicinal applications, phytochemistry, pharmacological mechanisms, clinical application, pharmacokinetics, quality control and safety, establishing a foundation for translational research. MATERIALS AND METHODS: A comprehensive search was conducted for all Chinese and English literature on "Sappan Lignum", "Sumu", or "Caesalpinia sappan L." retrieved from scientific databases including SciFinder, Web of Science, PubMed, CNKI, as well as other literature sources (Ph.D. and M.Sc. dissertations, and Chinese herbal classic books). RESULTS: Phytochemical analyses have identified over 100 compounds in Sumu, with protosappanins, brazilin derivatives, and sappanchalcones as its primary bioactive constituents. Pharmacologically, Sumu and its isolates demonstrate a wide spectrum of activities, including cardiovascular protection, anti-inflammation, antioxidant, antitumor, anti-immune rejection, antibacterial and anti-melanogenic effects, which are primarily mediated through pathways such as NF-κB and Nrf2. These activities underpin its clinical efficacy in diabetic complications, cardiovascular diseases, and gynecological disorders, aligning with its traditional use for activating blood circulation and resolving stasis. Pharmacokinetic studies reveal rapid absorption and renal elimination of key markers such as brazilin, while quality control advancements now emphasize multi-technique profiling to capture its phytochemical complexity. Toxicological data corroborate its contraindication during pregnancy and highlight that safety profiles are dose- and extract-dependent. CONCLUSION: Sumu's ethnopharmacological uses are strongly supported by modern pharmacology. Future research should prioritize clinical trials, mechanism-of-action studies for polypharmacology, sustainable quality standardization, and the development of novel derivatives targeting cardiovascular/oncological diseases.
Key Findings
- Sappan Lignum (Sumu) contains over 100 compounds with protosappanins, brazilin derivatives, and sappanchalcones as primary bioactive constituents.
- Sumu exhibits pharmacological activities including cardiovascular protection, anti-inflammation, antioxidant, antitumor, anti-immune rejection, antibacterial, and anti-melanogenic effects.
- These effects are primarily mediated through pathways such as NF-κB and Nrf2.
- Pharmacokinetic studies show rapid absorption and renal elimination of key markers like brazilin.
- Safety profiles are dose- and extract-dependent, with contraindications during pregnancy.
Clinical Significance
Sumu's antioxidant and anti-inflammatory properties mediated via Nrf2 pathways support its traditional use in treating cardiovascular diseases, diabetic complications, and gynecological disorders, highlighting its potential for clinical applications with attention to safety and quality control.
Citation
Chen Weiying, Li Xiaocui, Hu Binget al.. Progresses in ethnopharmacological use, phytochemistry, pharmacology, clinical application, pharmacokinetics, quality control and safety of SappanLignum (Sumu): A review. Journal of ethnopharmacology. 2026-Jun-28.