Thongphichai Wisuwat, Hasriadi Hasriadi, Wasana Peththa Wadu Dasuni, Jayashan Sanith Sri, Sritularak Boonchoo, Towiwat Pasarapa, Sukrong Suchada
Center of Excellence in DNA Barcoding of Thai Medicinal Plants, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.
Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand.
BMC Complement Med Ther. 2025 Apr 17;25(1):143. doi: 10.1186/s12906-025-04884-0.
Rhizomes of Curcuma wanenlueanga Saensouk, Thomudtha & Boonma have been used in Thai traditional medicine and are included as an ingredient in a Thai traditional liniment formula listed by the Ministry of Public Health of Thailand for treating symptoms related to joints and muscle inflammation. However, anti-inflammatory activity and bioactive constituents of C. wanenlueanga have not yet been investigated. Thus, this study aimed to investigate the anti-inflammatory activity and underlying mechanism of C. wanenlueanga rhizome extract and its responsible bioactive components.
The fractionation of bioactive compounds from C. wanenlueanga extract was guided by antioxidant activity on DPPH and Griess assays, and anti-inflammatory activity on LPS-induced RAW 264.7 cells. The biological activities of isolated compounds were first predicted by network pharmacology and further confirmed in cell-based assay with LPS-induced RAW 264.7 cells and enzyme-linked immunosorbent assay (ELISA) of tumor necrosis factor alpha (TNF-α) and interleukin-6 (IL-6).
The ethanolic extract of C. wanenlueanga rhizomes was proved to show anti-inflammatory activity on LPS-induced RAW 264.7 cells. Three curcuminoids including curcumin (1), demethoxycurcumin (2), dihydrodemethoxycurcumin (3), and two sesquiterpenoids, namely curcumenone (4), and zedoarondiol (5) were separated from anti-inflammatory fractions of C. wanenlueanga extract. The anti-inflammatory activity of these compounds to attenuate the productions of TNF-α and IL-6 was predicted by pharmacological network. The inflammatory assays, including the Griess assay for NO and ELISA for TNF-α and IL-6, confirmed that all isolated compounds reduced the production of these inflammatory mediators.
The present study shows the accordance between the results from pharmacological network and cell-based assays, which indicate the anti-inflammatory activity of C. wanenlueanga rhizomes and their bioactive constituents. This suggests the potential of bioactive compounds 1-5 to be used for quality assessment of C. wanenlueanga extract in the development of herbal products.
温郁金(Curcuma wanenlueanga Saensouk、Thomudtha & Boonma)的根茎已用于泰国传统医学,并被列为泰国公共卫生部列出的一种泰国传统擦剂配方的成分,用于治疗与关节和肌肉炎症相关的症状。然而,温郁金的抗炎活性和生物活性成分尚未得到研究。因此,本研究旨在探讨温郁金根茎提取物的抗炎活性及其潜在机制,以及其起作用的生物活性成分。
以对二苯基苦味酰基自由基(DPPH)和格里斯(Griess)试验的抗氧化活性以及对脂多糖(LPS)诱导的RAW 264.7细胞的抗炎活性为指导,对温郁金提取物中的生物活性化合物进行分离。首先通过网络药理学预测分离出的化合物的生物学活性,并在基于细胞的LPS诱导的RAW 264.7细胞试验以及肿瘤坏死因子α(TNF-α)和白细胞介素-6(IL-6)的酶联免疫吸附测定(ELISA)中进一步证实。
温郁金根茎的乙醇提取物被证明对LPS诱导的RAW 264.7细胞具有抗炎活性。从温郁金提取物的抗炎部分中分离出三种姜黄素类化合物,即姜黄素(1)、去甲氧基姜黄素(2)、二氢去甲氧基姜黄素(3),以及两种倍半萜类化合物,即莪术二酮(4)和莪术二醇(5)。通过药理学网络预测了这些化合物减弱TNF-α和IL-6产生的抗炎活性。包括用于检测一氧化氮(NO)的格里斯试验以及用于检测TNF-α和IL-6的ELISA在内的炎症试验证实,所有分离出的化合物均降低了这些炎症介质的产生。
本研究表明药理学网络和基于细胞的试验结果一致,这表明温郁金根茎及其生物活性成分具有抗炎活性。这表明生物活性化合物1 - 5在草药产品开发中用于温郁金提取物质量评估的潜力。