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Shao LL, Lin KQ, Liu HF, Li ZY, Zhang N, Chen C, Pan WD, Lou HY, Li JY. Meliasanines A-L, tirucallane-type triterpenoids from Melia toosendan with anti-inflammatory properties via NF-κB signaling pathway. PHYTOCHEMISTRY 2024; 225:114192. [PMID: 38901624 DOI: 10.1016/j.phytochem.2024.114192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 06/14/2024] [Accepted: 06/16/2024] [Indexed: 06/22/2024]
Abstract
Meliasanines A-L, twelve previously unreported tirucallane-type triterpenoids, together with fifteen known ones, have been isolated from the stem bark of Melia toosendan. Their structures and absolute configurations were determined based on HRESIMS, and NMR, combined with calculated ECD and single-crystal X-ray diffraction analyses. Subsequently, all compounds except 10 were evaluated for their inhibitory effect on the production of nitric oxide induced by lipopolysaccharide in RAW264.7 macrophage cells. The results indicated that seven compounds (1, 13, 14, 16, 20, 22, and 23) exhibited significant NO inhibitory effects, with IC50 values ranging from 1.35 to 5.93 μM, which were more effective than the positive control indomethacin (IC50 = 13.18 μM). Moreover, the corresponding results of Western blot analysis revealed that meliasanine A (1) can significantly suppress the protein expression of inducible nitric oxide synthase and cyclooxygenase 2 in a concentration-dependent manner. The mechanism study suggested that meliasanine A exerts an anti-inflammatory effect via the nuclear factor-κB signaling pathway by suppressing phosphorylation of P65 and IκBα.
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Affiliation(s)
- Li-Li Shao
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China
| | - Kai-Qin Lin
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China
| | - Han-Fei Liu
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China; Natural Products Research Center of Guizhou Province, Guiyang, 550014, PR China
| | - Zhi-Yao Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China
| | - Ni Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China; Natural Products Research Center of Guizhou Province, Guiyang, 550014, PR China
| | - Chao Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China; Natural Products Research Center of Guizhou Province, Guiyang, 550014, PR China
| | - Wei-Dong Pan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China.
| | - Hua-Yong Lou
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China; Natural Products Research Center of Guizhou Province, Guiyang, 550014, PR China.
| | - Jin-Yu Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang, 550014, PR China; Natural Products Research Center of Guizhou Province, Guiyang, 550014, PR China.
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Lu X, Hong D, Wu W, Zhang L, Qiu C. A case report of integrating Chinese and Western medicine: A new era in the treatment of stiff person syndrome. Medicine (Baltimore) 2024; 103:e36883. [PMID: 38215122 PMCID: PMC10783390 DOI: 10.1097/md.0000000000036883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 12/18/2023] [Indexed: 01/14/2024] Open
Abstract
RATIONALE At present, there are limitations to the treatment of stiff person syndrome (SPS). Current treatments are still ineffective or financially burdensome for some patients, so it is imperative to explore more appropriate treatments for patients. This is a case report of a SPS with a more significant effect of combined Chinese and Western medicine, which may provide new treatment ideas for other patients. PATIENT CONCERNS This patient presented with episodes of stiffness and pain in the lower back and lower extremities. His electromyography shows continued activation of normal motor units in the paraspinal and abdominal muscles. However, relevant laboratory tests including glutamic acid decarboxylase antibody and Amphiphysin antibody were negative. After a period of treatment including clonazepam, baclofen, prednisone and intravenous immunoglobulin, this patient experiences a shortened maintenance period of medication, accompanied by symptoms such as emotional anxiety and cognitive decline, which severely affects his life. DIAGNOSES This patient was diagnosed with SPS. INTERVENTIONS In May 2022 the patient decided to combine Chinese medicine for simultaneous treatment. OUTCOMES During the period of simultaneous treatment with Chinese and Western medicine, the patient experienced remission of clinical symptoms, reduction of concomitant symptoms and improved quality of life. CONCLUSION A combination of Western and Chinese medicine was effective in relieving this patient pain and stiffness and reducing the patient anxiety. Combined Chinese and Western medicine treatment may be able to bring better results to more patients with stiff person syndrome.
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Affiliation(s)
- Xiaohui Lu
- Zhejiang University of Chinese Medicine, Hangzhou, Zhejiang Province, China
| | - Du Hong
- Zhejiang Provincial Hospital of Chinese Medicine, Hangzhou, Zhejiang Province, China
| | - Wenshuo Wu
- Zhejiang University of Chinese Medicine, Hangzhou, Zhejiang Province, China
| | - Liping Zhang
- Zhejiang Provincial Hospital of Chinese Medicine, Hangzhou, Zhejiang Province, China
| | - Changlin Qiu
- Zhejiang Provincial Hospital of Chinese Medicine, Hangzhou, Zhejiang Province, China
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Kim SC, Gu DR, Yang H, Lee SJ, Ryuk JA, Ha H. Isolation and Characterization of an Anti-Osteoporotic Compound from Melia toosendan Fructus. Pharmaceutics 2023; 15:2454. [PMID: 37896213 PMCID: PMC10609846 DOI: 10.3390/pharmaceutics15102454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Melia toosendan fructus, traditionally employed in traditional Chinese and Korean herbal medicine, exhibits diverse biological properties encompassing anti-tumor, anti-inflammatory, and anti-viral effects. However, its influence on bone metabolism remains largely unexplored. In this study, we investigated the impact of an ethanolic extract of Melia toosendan fructus (MTE) on osteoclast differentiation and characterized its principal active constituent in osteoclast differentiation and function, as well as its effects on bone protection. Our findings demonstrate that MTE effectively inhibits the differentiation of osteoclast precursors induced by receptor activator of nuclear factor κB ligand (RANKL). Utilizing a bioassay-guided fractionation approach coupled with UHPLC-MS/MS analysis, we isolated and identified the triterpenoid compound toosendanin (TSN) as the active constituent responsible for MTE's anti-osteoclastogenic activity. TSN treatment downregulated the expression of nuclear factor of activated T cells c1, a pivotal osteoclastogenic transcription factor, along with molecules implicated in osteoclast-mediated bone resorption, including tumor necrosis factor receptor-associated factor 6, carbonic anhydrase II, integrin beta-3, and cathepsin K. Furthermore, treatment of mature osteoclasts with TSN impaired actin ring formation, acidification, and resorptive function. Consistent with our in vitro findings, TSN administration mitigated trabecular bone loss and reduced serum levels of the bone resorption marker, C-terminal cross-linked telopeptides of type I collagen, in a mouse bone loss model induced by intraperitoneal injections of RANKL. These results suggest that TSN, as the principal active constituent of MTE with inhibitory effects on osteoclastogenesis, exhibits bone-protective properties by suppressing both osteoclast differentiation and function. These findings imply the potential utility of TSN in the treatment of diseases characterized by excessive bone resorption.
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Affiliation(s)
| | | | | | | | | | - Hyunil Ha
- KM Convergence Research Division, Korea Institute of Oriental Medicine (KIOM), Yuseong-daero 1672, Yuseong-gu, Daejeon 34054, Republic of Korea
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Pan L, Wang Y, Yue L, Wang N, Xu W, Liao X, Wang H, Xiu Y. Review on Processing Methods of Toxic Chinese Materia Medica and the Related Mechanisms of Action. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2023; 51:1385-1412. [PMID: 37545180 DOI: 10.1142/s0192415x23500635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Toxic Chinese materia medica (CMM) has both pharmacological activities and toxic effects. Based on thousands of years of experience in the application of CMMs, people have explored many practical processing methods of CMMs, also known as "Pao Zhi", to reduce/control toxicity and preserve/enhance efficacy. Toxic CMMs have been used throughout China's hospitals. Yet, the production and use of toxic CMM should be carried out in accordance with the Chinese pharmacopoeia (ChP) and the processing regulations formulated by the health administrative departments of provinces, autonomous regions, and municipalities directly under the Central Government. This paper summarizes the current understanding and awareness of toxicity and 45 toxic CMMs, the commonly used processing methods of toxic CMMs recorded in the 2020 edition of ChP, and the changes in the chemical component, toxicity, or efficacy profiles after processing. This review may provide useful information for the processing methods of toxic CMMs worldwide. We believe that with an in-depth study and understanding of toxic CMMs combined with a standardized application, the toxicity of CMMs will be predictable and controllable in the future.
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Affiliation(s)
- Lingyun Pan
- Experiment Center for Science and Technology, Shanghai 201203, P. R. China
| | - Yingshu Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P. R. China
| | - Lixia Yue
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P. R. China
| | - Nan Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P. R. China
| | - Wen Xu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P. R. China
| | - Xue Liao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P. R. China
| | - Haiying Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P. R. China
| | - Yanfeng Xiu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, P. R. China
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