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Jiang XW, Yu WH, Wang Y, Xiong ZL, Ma XL, Zhou C, Huo MH. Acetyl-11-keto-beta-boswellic acid promotes sciatic nerve repair after injury: molecular mechanism. Neural Regen Res 2022; 17:2778-2784. [PMID: 35662229 PMCID: PMC9165397 DOI: 10.4103/1673-5374.339494] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Previous studies showed that acetyl-11-keto-beta-boswellic acid (AKBA), the active ingredient in the natural Chinese medicine Boswellia, can stimulate sciatic nerve injury repair via promoting Schwann cell proliferation. However, the underlying molecular mechanism remains poorly understood. In this study, we performed genomic sequencing in a rat model of sciatic nerve crush injury after gastric AKBA administration for 30 days. We found that the phagosome pathway was related to AKBA treatment, and brain-derived neurotrophic factor expression in the neurotrophic factor signaling pathway was also highly up-regulated. We further investigated gene and protein expression changes in the phagosome pathway and neurotrophic factor signaling pathway. Myeloperoxidase expression in the phagosome pathway was markedly decreased, and brain-derived neurotrophic factor, nerve growth factor, and nerve growth factor receptor expression levels in the neurotrophic factor signaling pathway were greatly increased. Additionally, expression levels of the inflammatory factors CD68, interleukin-1β, pro-interleukin-1β, and tumor necrosis factor-α were also decreased. Myelin basic protein- and β3-tubulin-positive expression as well as the axon diameter-to-total nerve diameter ratio in the injured sciatic nerve were also increased. These findings suggest that, at the molecular level, AKBA can increase neurotrophic factor expression through inhibiting myeloperoxidase expression and reducing inflammatory reactions, which could promote myelin sheath and axon regeneration in the injured sciatic nerve.
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Wang Y, Yu Z, Yuan H, Chen H, Xie N, Wang Z, Sun Q, Zhang W. Structure-based design of glycyrrhetinic acid derivatives as potent anti-sepsis agents targeting high-mobility group box-1. Bioorg Chem 2020; 106:104461. [PMID: 33223202 DOI: 10.1016/j.bioorg.2020.104461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 10/15/2020] [Accepted: 11/02/2020] [Indexed: 12/15/2022]
Abstract
Novel Glycyrrhetinic Acid (GA) derivatives with fused heterocycles on A ring were structure-based designed and synthesized. Their potential anti-inflammatory effects were investigated by a classical LPS stimulated macrophage model. Surface plasmon resonance (SPR) was used to verify the binding of GA analogues with HMGB1. A preliminary structure-activity relationship was summarized and an analogue GA-60 with ortho-methoxybenzyl pyrozole showed stronger anti-inflammatory effect and higher affinity for HMGB1 with a Kd value of 12.5 μM. In addition, this compound exhibited excellent inhibitory functions on NO (96%), TNF-α (94%), and IL-6 (100%), by interfering with phosphorylation of p38, ERK, JNK MAPKs, as well as that of NF-κB p65 and IKKα/β. Moreover, GA-60 extended the survival of either the classic CLP-induced or LPS-induced sepsis mouse models. Molecular modeling predictions further supported these findings, clearly indicating that inhibiting HMGB1 release, using fused heterocyclic GA derivatives, is a promising strategy for treatment of sepsis.
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Affiliation(s)
- Yuanyuan Wang
- Interdisciplinary Science Research Institute, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zongmin Yu
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; Department of Medical Service Training Center, No. 965 Hospital, Joint Logistics Support Force of PLA, Jilin 132011, China
| | - Hu Yuan
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Jiangxi 341000, China
| | - Hao Chen
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; State Key Laboratory of Innovative Natural Medicine and TCM Injections, Jiangxi 341000, China
| | - Ning Xie
- State Key Laboratory of Innovative Natural Medicine and TCM Injections, Jiangxi 341000, China
| | - Zhibin Wang
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| | - Qingyan Sun
- Shanghai Institute of Pharmaceutical Industry, Shanghai 200040, China.
| | - Weidong Zhang
- Interdisciplinary Science Research Institute, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Shanghai Institute of Pharmaceutical Industry, Shanghai 200040, China; School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
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Nosova NV, Sokolov AA, Gein ON, Gein VL, Yankin AN, Danilov SE, Dmitriev MV. Synthesis and Analgesic Activity of N,6-Diaryl-4-hydroxy-4-methyl-2-oxocyclohexane-1-carboxamides and Their Dehydration Products. RUSS J GEN CHEM+ 2020. [DOI: 10.1134/s1070363220090017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Li H, Gao X, Huang X, Wang X, Xu S, Uchita T, Gao M, Xu J, Hua H, Li D. Hydrogen sulfide donating ent-kaurane and spirolactone-type 6,7-seco-ent-kaurane derivatives: Design, synthesis and antiproliferative properties. Eur J Med Chem 2019; 178:446-457. [PMID: 31202992 DOI: 10.1016/j.ejmech.2019.06.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 06/03/2019] [Accepted: 06/04/2019] [Indexed: 01/15/2023]
Abstract
Motivated by our interest in hydrogen sulfide bio-chemistry and ent-kaurane diterpenoid chemistry, 14 hydrogen sulfide donating derivatives (9, 11a-c, 12a-c, 13, 14, 16a-c and 17a-b) of ent-kaurane and spirolactone-type 6,7-seco-ent-kaurane were designed and synthesized. Four human cancer cell lines (K562, Bel-7402, SGC-7901 and A549) and two normal cell lines (L-02 and PBMC) were selected for antiproliferative assay. Most derivatives showed more potent activities than the lead ent-kaurane oridonin. Among them, compound 12b exhibited the most potent antiproliferative activities, with IC50 values of 1.01, 0.88, 4.36 and 5.21 μM against above human cancer cell lines, respectively. Further apoptosis-related mechanism study indicated that 12b could arrest Bel-7402 cell cycle at G1 phase and induce apoptosis through mitochondria related pathway. Through Western blot assay, 12b was shown to influence the intrinsic pathway by increasing the expression of Bax, cleaved caspase-3, cytochrome c and cleaved PARP, meanwhile suppressing procaspase-3, Bcl-2, Bcl-xL and PARP.
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Affiliation(s)
- Haonan Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Xiang Gao
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Xiaofang Huang
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Xianhua Wang
- School of Public Health, Qingdao University, 38 Dengzhou Road, Qingdao, 266021, PR China
| | - Shengtao Xu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, PR China
| | - Takahiro Uchita
- School of Pharmaceutical Sciences, Mukogawa Women's University, 11-68 Koshien, Nishinomiya, 663-8179, Japan
| | - Ming Gao
- School of Pharmaceutical Sciences, Mukogawa Women's University, 11-68 Koshien, Nishinomiya, 663-8179, Japan
| | - Jinyi Xu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, PR China
| | - Huiming Hua
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China
| | - Dahong Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang, 110016, PR China.
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