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Kang Z, Wang P, Wang B, Yan Y, Zhao Z, Li C, Wen L, Wu M, Yan G, Wang X, Zhang G, Zeng Q. Echinatin suppresses cutaneous squamous cell carcinoma by targeting GSTM3-mediated ferroptosis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 131:155752. [PMID: 38833947 DOI: 10.1016/j.phymed.2024.155752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 05/04/2024] [Accepted: 05/15/2024] [Indexed: 06/06/2024]
Abstract
BACKGROUND Cutaneous squamous cell carcinoma (cSCC) is one of the most common skin cancers for which effective drugs are urgently needed. Echinatin, a natural compound extracted from Glycyrrhiza plants, has shown promising antitumour effects. However, the efficacy and the direct target of echinatin in cSCC remain unclear. PURPOSE This study conducted a systematic investigation of the antitumour effects of echinatin on cSCC and the underlying mechanisms involved. STUDY DESIGN AND METHODS Three cSCC cell lines, a xenograft model, and a UV-induced cSCC mouse model were used to investigate the potential protective effects of echinatin. The interactions between echinatin and glutathione S-transferase mu3 (GSTM3) and between echinatin and peroxiredoxin-2 (PRDX2) were evaluated by a proteome microarray assay, pull-down LC‒MS/MS analysis, surface plasmon resonance, and molecular docking. The potential mechanisms of GSTM3-mediated echinatin activity were analysed by using western blotting, lentivirus infection and small interfering RNA (siRNA) transfection. RESULTS In this study, we found that echinatin inhibited the proliferation and migration of cSCC cells but had no cytotoxic effect on primary human keratinocytes. Furthermore, echinatin significantly inhibited tumour growth in vivo. Mechanistically, our data showed that echinatin could directly bind to GSTM3 and PRDX2. Notably, echinatin inhibited GSTM3 and PRDX2 levels by promoting their proteasomal degradation, which led to the disruption of ROS production. We then revealed that echinatin increased mitochondrial ROS production by inhibiting GSTM3. Moreover, echinatin triggered ferroptosis by inhibiting GSTM3-mediated ferroptosis negative regulation (FNR) proteins. In addition, echinatin regulated GSTM3-mediated ROS/MAPK signalling. CONCLUSION Echinatin has good antitumour effects both in vitro and in vivo. Moreover, our findings indicate that GSTM3 and PRDX2 could function as viable targets of echinatin in cSCC. Consequently, echinatin represents a novel treatment for cSCC through the targeting of GSTM3-mediated ferroptosis.
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Affiliation(s)
- Ziwei Kang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Peiru Wang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Bo Wang
- Avera Medical Group Dermatology, Aberdeen, SD 57401, USA
| | - Yu Yan
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Zijun Zhao
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Chunxiao Li
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Long Wen
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Mingshun Wu
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Guorong Yan
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Xiuli Wang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
| | - Guolong Zhang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
| | - Qingyu Zeng
- Institute of Photomedicine, Shanghai Skin Disease Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
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Tao X, Hu Y, Mao N, Shen M, Fang M, Zhang M, Lou J, Fang Y, Guo X, Lin Z. Echinatin alleviates inflammation and pyroptosis in hypoxic-ischemic brain damage by inhibiting TLR4/ NF-κB pathway. Int Immunopharmacol 2024; 136:112372. [PMID: 38850784 DOI: 10.1016/j.intimp.2024.112372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/17/2024] [Accepted: 05/28/2024] [Indexed: 06/10/2024]
Abstract
Hypoxic ischemic encephalopathy (HIE) is a primary cause of neonatal death and disabilities. The pathogenetic process of HIE is closely associated with neuroinflammation. Therefore, targeting and suppressing inflammatory pathways presents a promising therapeutic strategy for the treatment of HIE. Echinatin is an active component of glycyrrhiza, with anti-inflammatory and anti-oxidative properties. It is commonly combined with other traditional Chinese herbs to exert heat-clearing and detoxifying effects. This study aimed to investigate the anti-inflammatory and neuroprotective effects of Echinatin in neonatal rats with hypoxic-ischemic brain damage, as well as in PC12 cells exposed to oxygen-glucose deprivation (OGD). In vivo, Echinatin effectively reduced cerebral edema and infarct volume, protected brain tissue morphology, improved long-term behavioral functions, and inhibited microglia activation. These effects were accompanied by the downregulation of inflammatory factors and pyroptosis markers. The RNA sequencing analysis revealed an enrichment of inflammatory genes in rats with hypoxic-ischemic brain damage, and Protein-protein interaction (PPI) network analysis identified TLR4, MyD88, and NF-κB as the key regulators. In vitro, Echinatin reduced the levels of TLR4 relevant proteins, inhibited nuclear translocation of NF-κB, reduced the expression of downstreams inflammatory cytokines and pyroptosis proteins, and prevented cell membrane destructions. These findings demonstrated that Echinatin could inhibit the TLR4/NF-κB pathway, thereby alleviating neuroinflammation and pyroptosis. This suggests that Echinatin could be a potential candidate for the treatment of HIE.
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Affiliation(s)
- Xiaoyue Tao
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, 325027, China
| | - Yingying Hu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, 325027, China
| | - Niping Mao
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, 325027, China
| | - Ming Shen
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, 325027, China
| | - Mingchu Fang
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, 325027, China
| | - Min Zhang
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, 325027, China
| | - Jia Lou
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, 325027, China
| | - Yu Fang
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, 325027, China
| | - Xiaoling Guo
- Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, 325027, China; Basic Medical Research Center, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang,325027, China.
| | - Zhenlang Lin
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, 325027, China; Key Laboratory of Structural Malformations in Children of Zhejiang Province, Wenzhou, Zhejiang, 325027, China.
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Shaikh S, Lee EJ, Ahmad K, Choi I. Therapeutic potential and action mechanisms of licochalcone B: a mini review. Front Mol Biosci 2024; 11:1440132. [PMID: 39021879 PMCID: PMC11251949 DOI: 10.3389/fmolb.2024.1440132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 06/19/2024] [Indexed: 07/20/2024] Open
Abstract
Licochalcone B (LicB), a chalcone derived from Glycyrrhiza uralensis and Glycyrrhiza glabra, has received considerable attention due to its diverse pharmacological properties. Accumulated data indicates that LicB has pharmacological effects that include anti-cancer, hepatoprotective, anti-inflammatory, and neuroprotective properties. The action mechanism of LicB has been linked to several molecular targets, such as phosphoinositide 3-kinase/Akt/mammalian target of rapamycin, p53, nuclear factor-κB, and p38, and the involvements of caspases, apoptosis, mitogen-activated protein kinase-associated inflammatory pathways, and anti-inflammatory nuclear factor erythroid 2-related factor 2 signaling pathways highlight the multifaceted therapeutic potential of LicB. This review systematically updates recent findings regarding the pharmacological effects of LicB, and the mechanistic pathways involved, and highlights the potential use of LicB as a promising lead compound for drug discovery.
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Affiliation(s)
- Sibhghatulla Shaikh
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, Republic of Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan, Republic of Korea
| | - Eun Ju Lee
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, Republic of Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan, Republic of Korea
| | - Khurshid Ahmad
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, Republic of Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan, Republic of Korea
| | - Inho Choi
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, Republic of Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan, Republic of Korea
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Dong H, Che Y, Zhu X, Zhong Y, Lin J, Wang J, Du W, Song T. Total Syntheses and Antibacterial Studies of Natural Isoflavones: Scandenone, Osajin, and 6,8-Diprenylgenistein. Molecules 2024; 29:2574. [PMID: 38893450 PMCID: PMC11173660 DOI: 10.3390/molecules29112574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 05/28/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
Isoflavones are a class of natural products that exhibit a wide range of interesting biological properties, including antioxidant, hepatoprotective, antimicrobial, and anti-inflammatory activities. Scandenone (1), osajin (2), and 6,8-diprenylgenistein (3) are natural prenylated isoflavones that share the same polyphenol framework. In this research, the key intermediate 15 was used for the synthesis of the natural isoflavones 1-3, establishing a stereoselective synthetic method for both linear and angular pyran isoflavones. The antibacterial activities of 1-3 were also evaluated, and all of them displayed good antibacterial activity against Gram-positive bacteria. Among them, 2 was the most potent one against MRSA, with a MIC value of 2 μg/mL, and the SEM assay indicated that the bacterial cell membranes of both MRSA and E. faecalis could be disrupted by 2. These findings suggest that this type of isoflavone could serve as a lead for the development of novel antibacterial agents for the treatment of Gram-positive bacterial infections.
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Affiliation(s)
- Hongbo Dong
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Yufei Che
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Xingtong Zhu
- School of Food Science and Biological Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Yi Zhong
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Jiafu Lin
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Jian Wang
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Weihong Du
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Tao Song
- Anti-Infective Agent Creation Engineering Research Centre of Sichuan Province, School of Pharmacy, Chengdu University, Chengdu 610106, China
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Quiros-Guerrero LM, Marcourt L, Chaiwangrach N, Koval A, Ferreira Queiroz E, David B, Grondin A, Katanaev VL, Wolfender JL. Integration of Wnt-inhibitory activity and structural novelty scoring results to uncover novel bioactive natural products: new Bicyclo[3.3.1]non-3-ene-2,9-diones from the leaves of Hymenocardia punctata. Front Chem 2024; 12:1371982. [PMID: 38638877 PMCID: PMC11024435 DOI: 10.3389/fchem.2024.1371982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 03/14/2024] [Indexed: 04/20/2024] Open
Abstract
In natural products (NPs) research, methods for the efficient prioritization of natural extracts (NEs) are key for discovering novel bioactive NPs. In this study a biodiverse collection of 1,600 NEs, previously analyzed by UHPLC-HRMS2 metabolite profiling was screened for Wnt pathway regulation. The results of the biological screening drove the selection of a subset of 30 non-toxic NEs with an inhibitory IC50 ≤ 5 μg/mL. To increase the chance of finding structurally novel bioactive NPs, Inventa, a computational tool for automated scoring of NEs based on structural novelty was used to mine the HRMS2 analysis and dereplication results. After this, four out of the 30 bioactive NEs were shortlisted by this approach. The most promising sample was the ethyl acetate extract of the leaves of Hymenocardia punctata (Phyllanthaceae). Further phytochemical investigations of this species resulted in the isolation of three known prenylated flavones (3, 5, 7) and ten novel bicyclo[3.3.1]non-3-ene-2,9-diones (1, 2, 4, 6, 8-13), named Hymenotamayonins. Assessment of the Wnt inhibitory activity of these compounds revealed that two prenylated flavones and three novel bicyclic compounds showed interesting activity without apparent cytotoxicity. This study highlights the potential of combining Inventa's structural novelty scores with biological screening results to effectively discover novel bioactive NPs in large NE collections.
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Affiliation(s)
- Luis-Manuel Quiros-Guerrero
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Centre Médical Universitaire, Geneva, Switzerland
- School of Pharmaceutical Sciences, University of Geneva, Centre Médical Universitaire, Geneva, Switzerland
| | - Laurence Marcourt
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Centre Médical Universitaire, Geneva, Switzerland
- School of Pharmaceutical Sciences, University of Geneva, Centre Médical Universitaire, Geneva, Switzerland
| | - Nathareen Chaiwangrach
- Centre of Excellence in Cannabis Research, Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, Thailand
| | - Alexey Koval
- Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, Faculty of Medicine, Geneva, Switzerland
| | - Emerson Ferreira Queiroz
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Centre Médical Universitaire, Geneva, Switzerland
- School of Pharmaceutical Sciences, University of Geneva, Centre Médical Universitaire, Geneva, Switzerland
| | - Bruno David
- Green Mission Department, Herbal Products Laboratory, Pierre Fabre Research Institute, Toulouse, France
| | - Antonio Grondin
- Green Mission Department, Herbal Products Laboratory, Pierre Fabre Research Institute, Toulouse, France
| | - Vladimir L. Katanaev
- Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, Faculty of Medicine, Geneva, Switzerland
- School of Medicine and Life Sciences, Far Eastern Federal University, Vladivostok, Russia
| | - Jean-Luc Wolfender
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Centre Médical Universitaire, Geneva, Switzerland
- School of Pharmaceutical Sciences, University of Geneva, Centre Médical Universitaire, Geneva, Switzerland
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Luo W, Song Z, Xu G, Wang H, Mu W, Wen J, Zhang P, Qin S, Xiao X, Bai Z. LicochalconeB inhibits cGAS-STING signaling pathway and prevents autoimmunity diseases. Int Immunopharmacol 2024; 128:111550. [PMID: 38232536 DOI: 10.1016/j.intimp.2024.111550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/08/2024] [Accepted: 01/12/2024] [Indexed: 01/19/2024]
Abstract
Cytosolic DNA activates the STING (stimulator of interferon genes) signaling pathway to trigger interferon and inflammatory responses that protect against microbial infections and cancer. However, Aicardi-Goutières syndrome (AGS) persistently activates the STING signaling pathway, which can lead to severe autoimmune diseases. We demonstrate herein that Licochalcone B (LicoB), the main component of traditional licorice, is an inhibitor of the STING signaling pathway. We observed that LicoB inhibited the activation of the STING signaling pathway in macrophages. Mechanically, LicoB affected the STING-TBK1-IRF3 signal axis and inhibited the activation of the STING downstream signaling pathway. Furthermore, LicoB inhibited the increase in type I interferon levels in mice induced by the STING agonist CMA. LicoB significantly reduced systemic inflammation in Trex1-/- mice. Our results show that LicoB, a STING signaling pathway inhibitor, is a promising candidate for the treatment of diseases related to STING signaling pathway activation.
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Affiliation(s)
- Wei Luo
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China
| | - Zheng Song
- Peking University 302 Clinical Medical School, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Guang Xu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Hongbo Wang
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Wenqing Mu
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Jincai Wen
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Ping Zhang
- Department of Pharmacy, Medical Supplies Center of PLA General Hospital, Beijing 100039, China
| | - Shuanglin Qin
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China.
| | - Xiaohe Xiao
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China.
| | - Zhaofang Bai
- Department of Hepatology, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China; China Military Institute of Chinese Materia, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China.
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Huang J, Zhu Y, Li S, Jiang H, Chen N, Xiao H, Liu J, Liang D, Zheng Q, Tang J, Meng X. Licochalcone B confers protective effects against LPS-Induced acute lung injury in cells and mice through the Keap1/Nrf2 pathway. Redox Rep 2023; 28:2243423. [PMID: 37565601 PMCID: PMC10424628 DOI: 10.1080/13510002.2023.2243423] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023] Open
Abstract
BACKGROUND Acute lung injury (ALI) is a severe and often fatal pulmonary disease. Current treatments for ALI and acute respiratory distress syndrome (ARDS) are limited. Natural product metabolites have shown promise as therapeutic alternatives. However, the effects of Licochalcone B (LCB) on ALI are largely unknown. METHODS We investigated the effects of LCB on lipopolysaccharide-challenged mice and human pulmonary microvascular endothelial cells. Cell viability, apoptosis, and ROS production were assessed. Lung tissue histopathology and oxidative stress and inflammation markers were evaluated. Protein expression levels were measured. RESULTS LCB had no cytotoxic effects on cells and increased cell viability. It reduced apoptosis and ROS levels in cells. In mice with ALI, LCB decreased lung tissue weight and improved oxidative stress and inflammation markers. It also enhanced expression levels of Nrf2, HO-1, and NQO1 while reducing Keap1. CONCLUSION LCB protects against LPS-induced acute lung injury in cells and mice. The Keap1/Nrf2 pathway may be involved in its protective effects. LCB shows potential as a strategy to alleviate ALI caused by LPS.
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Affiliation(s)
- Ju Huang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Yu Zhu
- Chengdu sport university, Chengdu, People's Republic of China
| | - Songtao Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Huanyu Jiang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Nianzhi Chen
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, People’s Republic of China
| | - Hang Xiao
- Capital Medical University, Beijing, People’s Republic of China
| | - Jingwen Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Dan Liang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Qiao Zheng
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Jianyuan Tang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
| | - Xiangrui Meng
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, People’s Republic of China
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Lu Q, Huang H, Wang X, Luo L, Xia H, Zhang L, Xu J, Huang Y, Luo X, Luo J. Echinatin inhibits the growth and metastasis of human osteosarcoma cells through Wnt/β-catenin and p38 signaling pathways. Pharmacol Res 2023; 191:106760. [PMID: 37023991 DOI: 10.1016/j.phrs.2023.106760] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/01/2023] [Accepted: 04/04/2023] [Indexed: 04/08/2023]
Abstract
Osteosarcoma (OS) is a highly aggressive malignant bone tumor that mainly occurs in adolescents. At present, chemotherapy is the most commonly used method in clinical practice to treat OS. However, due to drug resistance, toxicity and long-term side effects, chemotherapy can't always provide sufficient benefits for OS patients, especially those with metastasis and recurrence. Natural products have long been an excellent source of anti-tumor drug development. In the current study, we evaluated the anti-OS activity of Echinatin (Ecn), a natural active component from the roots and rhizomes of licorice, and explored the possible mechanism. We found that Ecn inhibited the proliferation of human OS cells and blocked cell cycle at S phase. In addition, Ecn suppressed the migration and invasion, while induced the apoptosis of human OS cells. However, Ecn had less cytotoxicity against normal cells. Moreover, Ecn inhibited the xenograft tumor growth of OS cells in vivo. Mechanistically, Ecn inactivated Wnt/β-catenin signaling pathway while activated p38 signaling pathway. β-catenin over-expression and the p38 inhibitor SB203580 both attenuated the inhibitory effect of Ecn on OS cells. Notably, we demonstrated that Ecn exhibited synergistic inhibitory effect with cisplatin (DDP) on OS cells in vitro and in vivo. Therefore, our results suggest that Ecn may exert anti-OS effects at least partly through regulating Wnt/β-catenin and p38 signaling pathways. Most meaningfully, the results obtained suggest a potential strategy to improve the DDP-induced tumor-killing effect on OS cells by combining with Ecn.
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Affiliation(s)
- Qiuping Lu
- Key Laboratory of Diagnostic Medicine designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 40016, China
| | - Huakun Huang
- Key Laboratory of Diagnostic Medicine designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 40016, China
| | - Xiaoxuan Wang
- Key Laboratory of Diagnostic Medicine designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 40016, China
| | - Lijuan Luo
- Key Laboratory of Diagnostic Medicine designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 40016, China
| | - Haichao Xia
- Key Laboratory of Diagnostic Medicine designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 40016, China
| | - Lulu Zhang
- Key Laboratory of Diagnostic Medicine designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 40016, China
| | - Jingtao Xu
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 40016, China
| | - Yanran Huang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 40016, China
| | - Xiaoji Luo
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 40016, China
| | - Jinyong Luo
- Key Laboratory of Diagnostic Medicine designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, 40016, China.
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Zhang J, Xie SA, Wang J, Liu J, Liu Y, Zhou S, Li X, Han L, Pang W, Yao W, Fu Y, Kong W, Ye M, Zhou J. Echinatin maintains glutathione homeostasis in vascular smooth muscle cells to protect against matrix remodeling and arterial stiffening. Matrix Biol 2023; 119:1-18. [PMID: 36958467 DOI: 10.1016/j.matbio.2023.03.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/21/2023] [Accepted: 03/18/2023] [Indexed: 03/25/2023]
Abstract
Decreased vascular compliance of the large arteries as indicated by increased pulse wave velocity is shown to be associated with atherosclerosis and the related cardiovascular events. The positive correlation between arterial stiffening and disease progression derives a hypothesis that softening the arterial wall may protect against atherosclerosis, despite that the mechanisms controlling the cellular pathological changes in disease progression remain unknown. Here, we established a mechanical-property-based screening to look for compounds alleviating the arterial wall stiffness through their actions on the interaction between vascular smooth muscle cells (VSMCs) and the wall extracellular matrix (ECM). We found that echinatin, a chalcone preferentially accumulated in roots and rhizomes of licorice (Glycyrrhiza inflata), reduced the stiffness of ECM surrounding cultured VSMCs. We examined the potential beneficial effects of echinatin on mitigating arterial stiffening and atherosclerosis, and explored the mechanistic basis by which the compound exert the effects. Administration of echinatin in mice fed on an adenine diet and in hyperlipidemia mice subjected to 5/6 nephrectomy mitigated arterial stiffening and atherosclerosis. Mechanistic insights were gained from the RNA-sequencing results showing that echinatin upregulated the expression of glutamate cysteine ligases (GCLs), both the catalytic (GCLC) and modulatory (GCLM) subunits. Further study indicated that upregulation of GCLC/GCLM in VSMCs by echinatin maintains the homeostasis of glutathione (GSH) metabolism; adequate availability of GSH is critical for counteracting arterial stiffening. As a consequence of regulating the GSH synthesis, echinatin inhibits ferroptosis and matrix remodeling that being considered two contributors of arterial stiffening and atherosclerosis. These data demonstrate a pivotal role of GSH dysregulation in damaging the proper VSMC-ECM interaction and uncover a beneficial activity of echinatin in preventing vascular diseases.
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Affiliation(s)
- Jianrui Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China; National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China
| | - Si-An Xie
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China; National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China
| | - Jin Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China; National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China
| | - Jiayu Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China; National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China
| | - Yueqi Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China; National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China
| | - Shuang Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China; National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China
| | - Xixi Li
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Peking University Center for Human Disease Genomics, Key Laboratory of Medical Immunology, Ministry of Health, Beijing 100191, China
| | - Lili Han
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China
| | - Wei Pang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China
| | - Weijuan Yao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China
| | - Yi Fu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China; National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China; National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China
| | - Min Ye
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China; State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Jing Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China; National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing Key Laboratory of Cardiovascular Receptors Research, Peking University, Beijing 100191, China.
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10
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Kwak AW, Lee JY, Lee SO, Seo JH, Park JW, Choi YH, Cho SS, Yoon G, Lee MH, Shim JH. Echinatin induces reactive oxygen species-mediated apoptosis via JNK/p38 MAPK signaling pathway in colorectal cancer cells. Phytother Res 2023; 37:563-577. [PMID: 36184899 DOI: 10.1002/ptr.7634] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/15/2022] [Accepted: 09/03/2022] [Indexed: 11/05/2022]
Abstract
Colorectal cancer (CRC) is a very common and deadly cancer worldwide, and oxaliplatin is used as first-line chemotherapy. However, resistance usually develops, limiting treatment. Echinatin (Ech) is the main component of licorice and exhibits various therapeutic effects on inflammation-mediated diseases and cancer, ischemia/reperfusion, and liver injuries. The present study elucidated the underlying molecular mechanism of Ech-induced apoptosis in both oxaliplatin-sensitive (HT116 and HT29) and -resistant (HCT116-OxR and HT29-OxR) CRC cells. To evaluate the antiproliferative activities of Ech, we performed MTT and soft agar assays. Ech reduced viability, colony size, and numbers of CRC cells. The underlying molecular mechanisms were explored by various flow cytometry analyses. Ech-induced annexin-V stained cells, reactive oxygen species (ROS) generation, cell cycle arrest, JNK/p38 MAPK activation, endoplasmic reticulum (ER) stress, mitochondrial membrane potential depolarization, and multi-caspase activity. In addition apoptosis-, cell cycle-, and ER stress-related protein levels were confirmed by western blotting. Moreover, we verified ROS-mediated cell death by treatment with inhibitors such as N-acetyl-L-cysteine, SP600125, and SB203580. Taken together, Ech exhibits anticancer activity in oxaliplatin-sensitive and -resistant CRCs by inducing ROS-mediated apoptosis through the JNK/p38 MAPK signaling pathway. This is the first study to show that Ech has the potential to treat drug-resistant CRC, providing new directions for therapeutic strategies targeting drug-resistant CRC.
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Affiliation(s)
- Ah-Won Kwak
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan, Republic of Korea
| | - Jin-Young Lee
- Department of Biological Sciences, Keimyung University, Daegu, Republic of Korea
| | - Seung-On Lee
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Cheonggye-myeon, Jeonnam, Republic of Korea
| | - Ji-Hye Seo
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju, Republic of Korea
| | - Jin Woo Park
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan, Republic of Korea.,Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Cheonggye-myeon, Jeonnam, Republic of Korea
| | - Yung Hyun Choi
- Department of Biochemistry, College of Korean Medicine, Dong-Eui University, Busan, Republic of Korea
| | - Seung-Sik Cho
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan, Republic of Korea.,Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Cheonggye-myeon, Jeonnam, Republic of Korea
| | - Goo Yoon
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan, Republic of Korea
| | - Mee-Hyun Lee
- College of Korean Medicine, Dongshin University, Naju, Jeonnam, Republic of Korea
| | - Jung-Hyun Shim
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan, Republic of Korea.,Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Cheonggye-myeon, Jeonnam, Republic of Korea.,The China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, People's Republic of China
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11
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Flavonoids from the roots and rhizomes of Sophoratonkinensis and their in vitro anti-SARS-CoV-2 activity. Chin J Nat Med 2023; 21:65-80. [PMID: 36641234 PMCID: PMC9836829 DOI: 10.1016/s1875-5364(23)60386-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Indexed: 01/14/2023]
Abstract
Acute respiratory infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) had caused a global pandemic since 2019, and posed a serious threat to global health security. Traditional Chinese medicine (TCM) has played an indispensable role in the battle against the epidemic. Many components originated from TCMs were found to inhibit the production of SARS-CoV-2 3C-like protease (3CLpro) and papain-like protease (PLpro), which are two promising therapeutic targets to inhibit SARS-CoV-2. This study describes a systematic investigation of the roots and rhizomes of Sophora tonkinensis, which results in the characterization of 12 new flavonoids, including seven prenylated flavanones (1-7), one prenylated flavonol (8), two prenylated chalcones (9-10), one isoflavanone (11), and one isoflavan dimer (12), together with 43 known compounds (13-55). Their structures including the absolute configurations were elucidated by comprehensive analysis of MS, 1D and 2D NMR data, and time-dependent density functional theory electronic circular dichroism (TDDFT ECD) calculations. Compounds 12 and 51 exhibited inhibitory effects against SARS-CoV-2 3CLpro with IC50 values of 34.89 and 19.88 μmol·L-1, repectively while compounds 9, 43 and 47 exhibited inhibitory effects against PLpro with IC50 values of 32.67, 79.38, and 16.74 μmol·L-1, respectively.
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12
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Liu Y, Guo ZW, Li J, Li AH, Huo TG. Insight into the regulation of NLRP3 inflammasome activation by mitochondria in liver injury and the protective role of natural products. Biomed Pharmacother 2022; 156:113968. [DOI: 10.1016/j.biopha.2022.113968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
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13
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Banerjee S, Baidya SK, Adhikari N, Ghosh B, Jha T. Glycyrrhizin as a promising kryptonite against SARS-CoV-2: Clinical, experimental, and theoretical evidences. J Mol Struct 2022; 1275:134642. [DOI: 10.1016/j.molstruc.2022.134642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/24/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
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14
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Maillard and Hydrolytic Reactions in Subcritical Water Extraction of Bioactive Compounds from Licorice. Molecules 2022; 27:molecules27206851. [PMID: 36296445 PMCID: PMC9607042 DOI: 10.3390/molecules27206851] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/06/2022] [Accepted: 10/08/2022] [Indexed: 11/24/2022] Open
Abstract
Nowadays, subcritical water extraction (SWE) techniques are extensively investigated worldwide, while the thermal reactions that inevitably occur under subcritical water conditions are rarely studied. In order to investigate the behaviors of the different reactions during SWE of bioactive compounds from licorice, the Maillard reaction process was accessed via their products and the hydrolytic reaction was analyzed according to the kinetic parameters. In addition, the contents of total phenolics and flavonoids in the extracts obtained at the different temperatures were determined and total antioxidant capacities were evaluated by HPLC-ABTS+. The results showed that flavonoids and phenolics from licorice as well as new compounds generated via the Maillard reaction contributed to the antioxidant activity of the extracts. The fluorescence, color and absorbance of the extracts showed that the degree of the Maillard reaction increased with the rise of the extraction temperature. The kinetics of extraction for glycyrrhizic acid showed that it was firstly extracted by diffusion, and then was hydrolyzed into glycyrrhetinic acid 3-O-mono-β-D-glucuronide and glycyrrhetinic acid following a first-order mechanism. These findings could provide deep insights into the SWE process and a new method for producing glycyrrhetinic acid 3-O-mono-β-D-glucuronide and glycyrrhetinic acid.
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15
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Mittal A, Vashistha VK, Das DK. Recent advances in the antioxidant activity and mechanisms of chalcone derivatives: a computational review. Free Radic Res 2022; 56:378-397. [PMID: 36063087 DOI: 10.1080/10715762.2022.2120396] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In this review, we have reported the antioxidant mechanisms and structure-antioxidant activity relationship of several chalcone derivatives, investigated in the recent past, based on the density functional theory (DFT) calculations, considering free radical scavenging and metal chelation ability. The antioxidant mechanisms include hydrogen atom transfer (HAT), sequential proton loss electron transfer (SPLET), single electron transfer followed by proton transfer (SET-PT), sequential proton loss hydrogen atom transfer (SPLHAT), sequential double proton loss electron transfer (SdPLET), sequential triple proton loss double electron transfer (StPLdET), sequential triple proton loss triple electron transfer (StPLtET), double HAT, double SPLET, double SET-PT, triple HAT, triple SET-PT, triple SPLET, proton-coupled electron transfer (PCET), single electron transfer (SET), radical adduct formation (RAF) and radical adduct formation followed by hydrogen atom abstraction (RAF-HAA). Furthermore, solvent effects have also been considered using different solvation models. The feasibility of scavenging different reactive oxygen and nitrogen species (ROS/RNS) has been discussed considering various factors such as the number and position of hydroxyl as well as methoxy groups present in the antioxidant molecule, stability of the species formed after scavenging reactive species, nature of substituent, steric effects, etc. This review opens new perspectives for designing new compounds with better antioxidant potential.
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Affiliation(s)
- Ankit Mittal
- Department of Chemistry, Institute of Applied Sciences and Humanities, GLA University, Mathura, India
| | - Vinod Kumar Vashistha
- Department of Chemistry, Institute of Applied Sciences and Humanities, GLA University, Mathura, India
| | - Dipak Kumar Das
- Department of Chemistry, Institute of Applied Sciences and Humanities, GLA University, Mathura, India
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16
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Shang Z, Tian Y, Xiong M, Yi Y, Qiao X, Yang Y, Ye M. Characterization of prenylated phenolics in Glycyrrhiza uralensis by offline two-dimensional liquid chromatography/mass spectrometry coupled with mass defect filter. J Pharm Biomed Anal 2022; 220:115009. [PMID: 36029604 DOI: 10.1016/j.jpba.2022.115009] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 08/13/2022] [Accepted: 08/16/2022] [Indexed: 11/18/2022]
Abstract
Prenylated phenolics are an important class of natural products. In this study, an efficient strategy was established to systematically characterize the prenylated phenolics in Glycyrrhiza uralensis, a popular herbal medicine. Firstly, offline two-dimensional liquid chromatography/mass spectrometry (2DLC/MS) coupled with mass defect filter (MDF) technology was used to preliminarily detect 1631 potential prenylated phenolics. Secondly, the tandem mass spectrometry fragmentation features of different types of prenylated phenolics were investigated using 29 reference standards. Diagnostic fragmentations included neutral loss (NL) of 42 Da for the annular type and NL of 56 Da for the catenulate type in the positive ion mode, and NL of 56 Da for A-ring prenyl groups and NL of 69 Da for B-ring prenyl groups in the negative ion mode. As a result, the prenylation types, substitution sites, and adjacent OH and OCH3 substitutions of 320 prenylated phenolics in G. uralensis were rapidly characterized. Moreover, three prenylated dihydrostilbenes were purified from the aerial part of G. uralensis to verify the structural characterizations.
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Affiliation(s)
- Zhanpeng Shang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Yungang Tian
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Ming Xiong
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Yang Yi
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Xue Qiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Yanfang Yang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China.
| | - Min Ye
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China; Yunnan Baiyao International Medical Research Center, Peking University, 38 Xueyuan Road, Beijing 100191, China.
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17
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Alhusban M, Pandey P, Ahn J, Avula B, Haider S, Avonto C, Ali Z, Khan SI, Ferreira D, Khan IA, Chittiboyina AG. Computational Tools to Expedite the Identification of Potential PXR Modulators in Complex Natural Product Mixtures: A Case Study with Five Closely Related Licorice Species. ACS OMEGA 2022; 7:26824-26843. [PMID: 35936409 PMCID: PMC9352242 DOI: 10.1021/acsomega.2c03240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023]
Abstract
The genus Glycyrrhiza, comprising approximately 36 spp., possesses complex structural diversity and is documented to possess a wide spectrum of biological activities. Understanding and finding the mechanisms of efficacy or safety for a plant-based therapy is very challenging, yet it is crucial and necessary to understand the polypharmacology of traditional medicines. Licorice extract was shown to modulate the xenobiotic receptors, which might manifest as a potential route for natural product-induced drug interactions. However, different mechanisms could be involved in this phenomenon. Since the induced herb-drug interaction of licorice supplements via Pregnane X receptor (PXR) is understudied, we ventured out to analyze the potential modulators of PXR in complex mixtures such as whole extracts by applying computational mining tools. A total of 518 structures from five species of Glycyrrhiza: 183 (G. glabra), 180 (G. uralensis), 100 (G. inflata), 33 (G. echinata), and 22 (G. lepidota) were collected and post-processed to yield 387 unique compounds. Visual inspection of top candidates with favorable ligand-PXR interactions and the highest docking scores were identified. The in vitro testing revealed that glabridin (GG-14) is the most potent PXR activator among the tested compounds, followed by licoisoflavone A, licoisoflavanone, and glycycoumarin. A 200 ns molecular dynamics study with glabridin confirmed the stability of the glabridin-PXR complex, highlighting the importance of computational methods for rapid dereplication of potential xenobiotic modulators in a complex mixture instead of undertaking time-consuming classical biological testing of all compounds in a given botanical.
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Affiliation(s)
- Manal Alhusban
- Department
of BioMolecular Sciences, Division of Pharmacognosy, University of Mississippi, University, Mississippi 38677, United States
| | - Pankaj Pandey
- National
Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi 38677, United States
| | - Jongmin Ahn
- National
Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi 38677, United States
| | - Bharathi Avula
- National
Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi 38677, United States
| | - Saqlain Haider
- National
Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi 38677, United States
| | - Cristina Avonto
- National
Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi 38677, United States
| | - Zulfiqar Ali
- National
Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi 38677, United States
| | - Shabana I. Khan
- Department
of BioMolecular Sciences, Division of Pharmacognosy, University of Mississippi, University, Mississippi 38677, United States
- National
Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi 38677, United States
| | - Daneel Ferreira
- Department
of BioMolecular Sciences, Division of Pharmacognosy, University of Mississippi, University, Mississippi 38677, United States
- National
Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi 38677, United States
| | - Ikhlas A. Khan
- Department
of BioMolecular Sciences, Division of Pharmacognosy, University of Mississippi, University, Mississippi 38677, United States
- National
Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi 38677, United States
| | - Amar G. Chittiboyina
- National
Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi 38677, United States
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18
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Mittas D, Spitaler U, Bertagnoll M, Oettl S, Gille E, Schwaiger S, Stuppner H. Identification and structural elucidation of bioactive compounds from Scirpoides holoschoenus. PHYTOCHEMISTRY 2022; 200:113241. [PMID: 35597313 DOI: 10.1016/j.phytochem.2022.113241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
Phytochemical investigations of dichloromethane and methanol extracts of roots and rhizomes of Scirpoides holoschoenus afforded 21 stilbenes, six flavonoids, six ferulic acid derivatives and four diterpenes. Among these constituents, six stilbenes, one flavonoid, one diterpene and two ferulic acid derivatives, represent previously unreported natural products. Structure elucidation was performed by HRESI-MS, NMR, GC-MS, and ECD data evaluation. The monoprenylated flavonoid (sophoraflavanone B) and all isolated stilbene oligomers (trans-scirpusin B, scirpusin A, cassigarol E, cyperusphenol B, cyperusphenol D, passiflorinol A, cyperusphenol A and mesocyperusphenol A) showed strong inhibitory activities on spore germination of two Botrytis cinerea strains isolated from field-infected grape berries and apple fruits compared to the reference controls resveratrol, piceid, and fenhexamid at a test concentration of 2.0 mM. For sophoraflavanone B and cyperusphenol A, the EC50 values were determined by concentration response curves and resulted in values of 0.35 mM and 0.53 mM, respectively. The data suggest that stilbene oligomers but also prenylated flavonoids should be examined further to gain more information on their antimicrobial activity and might be a suitable addition to chemical fungicides on the market to combat gray mold.
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Affiliation(s)
- Domenic Mittas
- Institute of Pharmacy/Pharmacognosy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck, 6020, Austria
| | - Urban Spitaler
- Institute for Plant Health, Laimburg Research Center, Laimburg 6, Pfatten (Vadena), 39040, Italy
| | - Michaela Bertagnoll
- Institute for Plant Health, Laimburg Research Center, Laimburg 6, Pfatten (Vadena), 39040, Italy
| | - Sabine Oettl
- Institute for Plant Health, Laimburg Research Center, Laimburg 6, Pfatten (Vadena), 39040, Italy
| | - Elvira Gille
- National Institute for Research and Development of Biological Sciences-Bucharest, CCB Stejarul Piatra Neamt, Alexandru cel Bun no. 6, Piatra Neamt, 610004, Romania
| | - Stefan Schwaiger
- Institute of Pharmacy/Pharmacognosy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck, 6020, Austria.
| | - Hermann Stuppner
- Institute of Pharmacy/Pharmacognosy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, Innsbruck, 6020, Austria
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19
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Fu K, Wang C, Ma C, Zhou H, Li Y. The Potential Application of Chinese Medicine in Liver Diseases: A New Opportunity. Front Pharmacol 2021; 12:771459. [PMID: 34803712 PMCID: PMC8600187 DOI: 10.3389/fphar.2021.771459] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 10/19/2021] [Indexed: 12/12/2022] Open
Abstract
Liver diseases have been a common challenge for people all over the world, which threatens the quality of life and safety of hundreds of millions of patients. China is a major country with liver diseases. Metabolic associated fatty liver disease, hepatitis B virus and alcoholic liver disease are the three most common liver diseases in our country, and the number of patients with liver cancer is increasing. Therefore, finding effective drugs to treat liver disease has become an urgent task. Chinese medicine (CM) has the advantages of low cost, high safety, and various biological activities, which is an important factor for the prevention and treatment of liver diseases. This review systematically summarizes the potential of CM in the treatment of liver diseases, showing that CM can alleviate liver diseases by regulating lipid metabolism, bile acid metabolism, immune function, and gut microbiota, as well as exerting anti-liver injury, anti-oxidation, and anti-hepatitis virus effects. Among them, Keap1/Nrf2, TGF-β/SMADS, p38 MAPK, NF-κB/IκBα, NF-κB-NLRP3, PI3K/Akt, TLR4-MyD88-NF-κB and IL-6/STAT3 signaling pathways are mainly involved. In conclusion, CM is very likely to be a potential candidate for liver disease treatment based on modern phytochemistry, pharmacology, and genomeproteomics, which needs more clinical trials to further clarify its importance in the treatment of liver diseases.
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Affiliation(s)
| | | | | | | | - Yunxia Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of Standardization for Chinese Herbal Medicine, Ministry of Education, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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20
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Zhou B, Wang H, Zhang B, Zhang L. Licochalcone B attenuates neuronal injury through anti-oxidant effect and enhancement of Nrf2 pathway in MCAO rat model of stroke. Int Immunopharmacol 2021; 100:108073. [PMID: 34454290 DOI: 10.1016/j.intimp.2021.108073] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 07/26/2021] [Accepted: 08/11/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND Investigating anti-oxidant therapies that lead to the diminution of oxidative injury is priority in clinical. We herein aimed to explore whether and how Licochalcone B (Lico B) act as an anti-oxidant in the stroke model. METHODS Middle cerebral artery occlusion (MCAO) was constructed as stroke model and exposed to various doses of Lico B. Behavioral tests and neurological behavior status were detected for neurological function examination. Histological staining was used for evaluating cerebral injury, and neuronal apoptosis or damage. Levels of oxidative stress and inflammation were also assessed by biochemical analysis and expression analysis. Nrf2 knockdown induced by lentiviral vector was used for the research on mechanism. RESULTS Lico B had improvement effects on cerebral infarction size, memory impairments, and neurological deficits after MCAO. Histological evaluation also revealed the amelioration of neuronal injury and apoptosis by Lico B, along with down-regulation of apoptosis-related proteins. Additionally, Lico B rescued the down-regulation of BDNF and NGF after MCAO. Moreover, Lico B suppressed the oxidative stress and inflammation, manifesting as the enhancement of SOD, GSH and IL-4, but the decline of MDA, iNOS, and TNF-α. Finally, Nrf2 knockdown reversed the Lico B-caused improvement in neuronal injury, apoptosis and oxidative stress levels. CONCLUSIONS The present study revealed the neuroprotective effects of Lico B in MCAO rats. Importantly, we proposed a potential mechanism that Lico B activated the Nrf2 pathway, thereby acting as anti-oxidant to attenuate neuronal injury and apoptosis after stroke. The proposed mechanism provided an encouraging possibility for anti-oxidant therapy of stroke.
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Affiliation(s)
- Baosheng Zhou
- Department of Neurosurgery, Tianjin First Central Hospital, Tianjin, China
| | - Honglin Wang
- Department of Interventional Medicine, Dazhou Central Hospital, Dazhou, China
| | - Bo Zhang
- Department of Neurosurgery, The people's hospital of Zhao Yuan city, Zhao Yuan, China
| | - Lianlian Zhang
- Department of Ultrasonography, The Fourth Affiliated Hospital of Nantong University, The First people's Hospital of Yancheng, Yancheng, Jiangsu Province, China.
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21
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Xu G, Fu S, Zhan X, Wang Z, Zhang P, Shi W, Qin N, Chen Y, Wang C, Niu M, Guo Y, Wang J, Bai Z, Xiao X. Echinatin effectively protects against NLRP3 inflammasome-driven diseases by targeting HSP90. JCI Insight 2021; 6:134601. [PMID: 33350984 PMCID: PMC7934863 DOI: 10.1172/jci.insight.134601] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 12/02/2020] [Indexed: 12/14/2022] Open
Abstract
Aberrant activation of NLRP3 inflammasome has been implicated in a variety of human inflammatory diseases, but currently, no pharmacological NLRP3 inhibitor has been approved. In this study, we showed that echinatin, the ingredient of the traditional herbal medicine licorice, effectively suppresses the activation of NLRP3 inflammasome in vitro and in vivo. Further investigation revealed that echinatin exerts its inhibitory effect on NLRP3 inflammasome by binding to heat-shock protein 90 (HSP90), inhibiting its ATPase activity and disrupting the association between the cochaperone SGT1 and HSP90-NLRP3. Importantly, in vivo experiments demonstrated that administration of echinatin obviously inhibits NLRP3 inflammasome activation and ameliorates LPS-induced septic shock and dextran sodium sulfate-induced (DSS-induced) colitis in mice. Moreover, echinatin exerted favorable pharmacological effects on liver inflammation and fibrosis in a mouse model of nonalcoholic steatohepatitis (NASH). Collectively, our study identifies echinatin as a potentially novel inhibitor of NLRP3 inflammasome, and its use may be developed as a therapeutic approach for the treatment of NLRP3-driven diseases.
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Affiliation(s)
- Guang Xu
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China.,Integrative Medical Centre, the Fifth Medical Centre, General Hospital of PLA, Beijing, China
| | - Shubin Fu
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China.,School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China.,Jiujiang Institute for Food and Drug Control, Jiujiang, China
| | - Xiaoyan Zhan
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China.,Integrative Medical Centre, the Fifth Medical Centre, General Hospital of PLA, Beijing, China
| | - Zhilei Wang
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ping Zhang
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China.,Integrative Medical Centre, the Fifth Medical Centre, General Hospital of PLA, Beijing, China
| | - Wei Shi
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China.,School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Nan Qin
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China.,School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Yuanyuan Chen
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China
| | - Chunyu Wang
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China
| | - Ming Niu
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China
| | - Yuming Guo
- Integrative Medical Centre, the Fifth Medical Centre, General Hospital of PLA, Beijing, China
| | - Jiabo Wang
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China
| | - Zhaofang Bai
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China
| | - Xiaohe Xiao
- Military Institute of Chinese Materia, the Fifth Medical Centre, General Hospital of PLA, Beijing, China
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22
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Niu J, Li Y, Song X, Liu Y, Li Y, Li Y. Cardioprotective Effect of Echinatin Against Ischemia/Reperfusion Injury: Involvement of Hippo/Yes-Associated Protein Signaling. Front Pharmacol 2021; 11:593225. [PMID: 33584269 PMCID: PMC7874120 DOI: 10.3389/fphar.2020.593225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 11/06/2020] [Indexed: 01/26/2023] Open
Abstract
Background: Echinatin (Ech) has been reported to exert antioxidant and anti-inflammatory activities. In this study, we aimed to characterize the functional role of Ech in myocardial ischemic/reperfusion (MI/R) injury and elucidate its underlying mechanism of action. Method: We established in vivo and in vitro models of MI/R injury to determine the effect of Ech on MI/R injury. Gene expression was examined using quantitative real-time polymerase chain reaction and western blotting. Myocardial infarction was assessed using tetrazolium chloride staining and the degree of myocardial injury was evaluated by measuring lactate dehydrogenase (LDH) and creatine kinase-myocardial band (CK-MB) levels. Cell apoptosis was detected using the terminal deoxynucleotidyl transfer-mediated dUTP nick end-labeling (TUNEL) assay. The viability of H9c2 cells was determined using Cell Counting Kit-8 assay. Results: MI/R induced myocardial infarction, which was mitigated by Ech treatment. Moreover, Ech treatment resulted in a marked decline of LDH and CK-MB levels in the serum and myocardium of MI/R rats. Ech treatment also restrained cardiomyocyte apoptosis in vivo and in vitro, as evidenced by reduction in LDH release, the number of TUNEL-positive cells, and caspase-3 activity. Furthermore, Ech administration inhibited MI/R-induced activation of Hippo/Yes-associated protein signaling in vivo and in vitro, as indicated by inhibition of mammalian sterile 20-like protein kinase 1, large tumor suppressor one, and YAP phosphorylation and promotion of YAP nuclear translocation. However, silencing of YAP counteracted the protective effect of Ech on hypoxia/reoxygenation-induced myocardial injury in vitro. Conclusion: Ech exerted its protective effect against MI/R injury at least partially by suppressing the Hippo/YAP signaling pathway, providing novel insights into the remission of MI/R injury.
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Affiliation(s)
- Jieting Niu
- Department of Geriatrics, Cangzhou Central Hospital, Cangzhou, China
| | - Yanguang Li
- Department of Thoracic Surgery, Cangzhou Central Hospital, Cangzhou, China
| | - Xiang Song
- Department of Thoracic Surgery, Cangzhou Central Hospital, Cangzhou, China
| | - Yunfeng Liu
- Department of Geriatrics, Cangzhou Central Hospital, Cangzhou, China
| | - Ying Li
- Department of Geriatrics, Cangzhou Central Hospital, Cangzhou, China
| | - Ya Li
- Department of Cardiology, Cangzhou Central Hospital, Cangzhou, China
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23
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Synthetic methods and biological applications of retrochalcones isolated from the root of Glycyrrhiza species: A review. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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24
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Souza JM, de Carvalho ÉAA, Candido ACBB, de Mendonça RP, Fernanda da Silva M, Parreira RLT, Dias FGG, Ambrósio SR, Arantes AT, da Silva Filho AA, Nascimento AN, Costa MR, Sairre MI, Veneziani RCS, Magalhães LG. Licochalcone a Exhibits Leishmanicidal Activity in vitro and in Experimental Model of Leishmania ( Leishmania) Infantum. Front Vet Sci 2020; 7:527. [PMID: 33363224 PMCID: PMC7758436 DOI: 10.3389/fvets.2020.00527] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 07/08/2020] [Indexed: 11/13/2022] Open
Abstract
The efficacy of Licochalcone A (LicoA) and its two analogs were reported against Leishmania (Leishmania) amazonensis and Leishmania (Leishmania) infantum in vitro, and in experimental model of L. (L.) infantum in vitro. Initially, LicoA and its analogs were screened against promastigote forms of L. (L.) amazonensis. LicoA was the most active compound, with IC50 values of 20.26 and 3.88 μM at 24 and 48 h, respectively. Against amastigote forms, the IC50 value of LicoA was 36.84 μM at 48 h. In the next step, the effectivity of LicoA was evaluated in vitro against promastigote and amastigote forms of L. (L.) infantum. Results demonstrated that LicoA exhibited leishmanicidal activity in vitro against promastigote forms with IC50 values of 41.10 and 12.47 μM at 24 and 48 h, respectively; against amastigote forms the IC50 value was 29.58 μM at 48 h. Assessment of cytotoxicity demonstrated that LicoA exhibited moderate mammalian cytotoxicity against peritoneal murine macrophages; the CC50 value was 123.21 μM at 48 h and showed about 30% of hemolytic activity at concentration of 400 μM. L. (L.) infantum-infected hamsters and treated with LicoA at 50 mg/kg for eight consecutive days was able to significantly reduce the parasite burden in both liver and spleen in 43.67 and 39.81%, respectively, when compared with negative control group. These findings suggest that chalcone-type flavonoids can be a promising class of natural products to be considered in the search of new, safe, and effective compounds capable to treat canine visceral leishmaniosis (CVL).
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Affiliation(s)
- Julia M. Souza
- Núcleo de Pesquisa em Ciências Exatas e Tecnológica, Universidade de Franca, Franca, Brazil
| | | | | | | | | | - Renato L. T. Parreira
- Núcleo de Pesquisa em Ciências Exatas e Tecnológica, Universidade de Franca, Franca, Brazil
| | | | - Sérgio R. Ambrósio
- Núcleo de Pesquisa em Ciências Exatas e Tecnológica, Universidade de Franca, Franca, Brazil
| | | | - Ademar A. da Silva Filho
- Departamento de Ciências Farmacêuticas, Universidade Federal de Juiz de Fora, Juiz de Fora, Brazil
| | - Aline N. Nascimento
- Centro de Ciências Naturais e Humanas, Universidade Federal Do ABC, Santo André, Brazil
| | - Monique R. Costa
- Centro de Ciências Naturais e Humanas, Universidade Federal Do ABC, Santo André, Brazil
| | - Mirela I. Sairre
- Centro de Ciências Naturais e Humanas, Universidade Federal Do ABC, Santo André, Brazil
| | | | - Lizandra G. Magalhães
- Núcleo de Pesquisa em Ciências Exatas e Tecnológica, Universidade de Franca, Franca, Brazil
- Pós Graduação em Ciência Animal, Universidade de Franca, Franca, Brazil
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25
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Sá IS, Neves KO, Guimarães AC, da Silva FM, Nunomura RDC. Chalcones and flavans from the bark of Brosimum acutifolium subsp. interjectum (Moraceae). BIOCHEM SYST ECOL 2020. [DOI: 10.1016/j.bse.2020.104175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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26
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de Freitas KS, Squarisi IS, Acésio NO, Nicolella HD, Ozelin SD, Reis Santos de Melo M, Guissone APP, Fernandes G, Silva LM, da Silva Filho AA, Tavares DC. Licochalcone A, a licorice flavonoid: antioxidant, cytotoxic, genotoxic, and chemopreventive potential. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2020; 83:673-686. [PMID: 32886024 DOI: 10.1080/15287394.2020.1813228] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
UNLABELLED Licochalcone A (LicoA) is a flavonoid derived from Glycyrrhiza spp. plants. The present study aimed to investigate the antioxidant, cytotoxic, genotoxic, and chemopreventive effects of LicoA in in vitro and in vivo systems. The results showed that LicoA (197.1 μM) scavenged 77.92% of free radicals. Concentrations of 147.75 µM or higher LicoA produced cytotoxicity in Chinese hamster ovary (CHO) fibroblasts. LicoA treatments of 4.43 to 10.34 µM did not exert genotoxic activity, but at 11.8 µM significantly lowered nuclear division indexes, compared to negative control, revealing cytotoxicity. Lower concentrations (1.85 to 7.39 µM) exhibited protective activity against chromosomal damage induced by doxorubicin (DXR) or methyl methanesulfonate (MMS) in CHO cells. LicoA exerted no marked influence on DXR-induced genotoxicity in mouse erythrocytes, but reduced pre-neoplastic lesions induced by 1,2-dimethylhydrazine (DMH) in rat colon at 3.12 to 50 mg/kg b.w. Biochemical markers and body weight indicated no apparent toxicity. These findings contribute to better understanding the mechanisms underlying LicoA-initiated activity as a promising chemopreventive compound. ABBREVIATIONS AC, aberrant crypts; ACF, aberrant crypt foci; ALT, alanine aminotransferase; AST, aspartate aminotransferase; BOD, biochemical oxygen demand; CHO, Chinese hamster ovary fibroblast; DMH, 1,2-dimethylhydrazine; DMSO, dimethyl sulfoxide; DPPH, 2,2-diphenyl-1-picrylhydrazyl; DXR, doxorubicin hydrochloride; EDTA, ethylenediaminetetraacetic acid; GA, gallic acid; LicoA, licochalcone A; MMS, methyl methanesulfonate; MNBC, micronucleated binucleated cells; MNPCE, micronucleated polychromatic erythrocyte; NCE, normochromatic erythrocyte; NDI, nuclear division index; PBS, phosphate-buffered saline; PCE, polychromatic erythrocyte; XTT, 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide.
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Affiliation(s)
| | - Iara Silva Squarisi
- Laboratório de Mutagênese, Universidade De Franca , Franca, São Paulo, Brazil
| | | | | | - Saulo Duarte Ozelin
- Laboratório de Mutagênese, Universidade De Franca , Franca, São Paulo, Brazil
| | | | | | - Gabriela Fernandes
- Laboratório de Mutagênese, Universidade De Franca , Franca, São Paulo, Brazil
| | - Lívia Mara Silva
- Faculdade De Farmácia, Departamento De Ciências Farmacêuticas, Universidade Federal De Juiz De Fora , Juiz De Fora, Minas Gerais, Brazil
| | - Ademar Alves da Silva Filho
- Faculdade De Farmácia, Departamento De Ciências Farmacêuticas, Universidade Federal De Juiz De Fora , Juiz De Fora, Minas Gerais, Brazil
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27
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Miyazaki A, Eerdunbayaer, Shiokawa T, Tada H, Lian Y, Taniguchi S, Hatano T. High-performance liquid chromatographic profile and 1H quantitative nuclear magnetic resonance analyses for quality control of a Xinjiang licorice extract. Biosci Biotechnol Biochem 2020; 84:2128-2138. [DOI: 10.1080/09168451.2020.1785272] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Abstract
Various pharmacological properties of Xinjiang licorice flavonoids have been reported recently. We have investigated constituents corresponding to distinct peaks on the high-performance liquid chromatography (HPLC) profile of a flavonoid-rich extract from licorice, and identified 13 flavonoids, including licochalcone A (1), licochalcone B (3), glabrone (4), and echinatin (5), by isolating them and then performing high-resolution electrospray ionization mass spectrometry and 1H nuclear magnetic resonance (NMR) spectral analyses. We then applied the 1H quantitative NMR (qNMR) method for analysis of major flavonoids, 1 and 3–5 in the extract. The 1H qNMR results were supported by 13C NMR analysis. The results demonstrated the utility of the combination of HPLC profiling and qNMR analyses for quality control of Xinjiang licorice. Additionally, we observed a moderate inhibitory effect of the most abundant constituent, licochalcone A (1), on acetylcholine esterase activity, suggesting utility as a seed for drug development.
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Affiliation(s)
- Atsumi Miyazaki
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Eerdunbayaer
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, P. R. China
| | - Tsugumi Shiokawa
- Advanced Science Research Center, Okayama University, Okayama, Japan
| | - Hiroko Tada
- Advanced Science Research Center, Okayama University, Okayama, Japan
| | - Yunhe Lian
- Research Center, Chenguang Biotech Group Co., Ltd, Handan, P. R. China
| | - Shoko Taniguchi
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Tsutomu Hatano
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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28
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Murugan M, Rajendran K, Velmurugan T, Muthu S, Gundappa M, Thangavel S. Antagonistic and antioxidant potencies of Centrosema pubescens benth extracts against nosocomial infection pathogens. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Ali Z, Hawwal M, Ahmed MMA, Avula B, Chittiboyina AG, Li J, Wu C, Taylor C, Chan YM, Khan IA. Licochalcone L, an undescribed retrochalcone from Glycyrrhiza inflata roots. Nat Prod Res 2020; 36:200-206. [PMID: 32498569 DOI: 10.1080/14786419.2020.1775229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Glycyrrhiza inflata Batalin is among the three glycyrrhizin producing Glycyrrhiza species and can be distinguished from other species with regard to its retrochalcone contents. Seven retrochalcones, echinatin and licochalcones A, C, D, E, K, and L were isolated and characterized from the chloroform extract of G. inflata roots. Among the isolates, licochalcone L was found to be previously undescribed. Structure elucidation of these specialised metabolites was achieved through NMR and mass spectroscopic data analyses.
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Affiliation(s)
- Zulfiqar Ali
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Mohammed Hawwal
- Division of Pharmacognosy, Department of BioMolecular Sciences School of Pharmacy, University of Mississippi, University, MS, USA.,Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed M A Ahmed
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Bharathi Avula
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Amar G Chittiboyina
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Jing Li
- Botanical Review Team, Science Staff, Immediate Office, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - Charles Wu
- Botanical Review Team, Science Staff, Immediate Office, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - Cassandra Taylor
- Botanical Review Team, Science Staff, Immediate Office, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - Yen-Ming Chan
- Botanical Review Team, Science Staff, Immediate Office, Office of Pharmaceutical Quality, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - Ikhlas A Khan
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA.,Division of Pharmacognosy, Department of BioMolecular Sciences School of Pharmacy, University of Mississippi, University, MS, USA
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30
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Yu Y, Pauli GF, Huang L, Gan LS, van Breemen RB, Li D, McAlpine JB, Lankin DC, Chen SN. Classification of Flavonoid Metabolomes via Data Mining and Quantification of Hydroxyl NMR Signals. Anal Chem 2020; 92:4954-4962. [PMID: 32108467 PMCID: PMC7442116 DOI: 10.1021/acs.analchem.9b05084] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Utilizing the distinct HMBC cross-peak patterns of lower-field range (LFR; 11.80-14.20 ppm) hydroxyl singlets, presented NMR methodology characterizes flavonoid metabolomes both qualitatively and quantitatively. It enables simultaneous classification of the structural types of 5-OH flavonoids and biogenetically related 2'-OH chalcones, as well as quantification of individual metabolites from 1H NMR spectra, even in complex mixtures. Initially, metabolite-specific LFR 1D 1H and 2D HMBC patterns were established via literature mining and experimental data interpretation, demonstrating that LFR HMBC patterns encode the different structural types of 5-OH flavonoids/2'-OH chalcones. Taking advantage of the simplistic multiplicity of the H,H-uncoupled LFR 5-/2'-OH singlets, individual metabolites could subsequently be quantified by peak fitting quantitative 1H NMR (PF-qHNMR). Metabolomic analysis of enriched fractions from three medicinal licorice (Glycyrrhiza) species established proof-of-concept for distinguishing three major structural types and eight subtypes in biomedical applications. The method identified 15 G. uralensis (GU) phenols from the six possible subtypes of 5,7-diOH (iso)flav(an)ones with 6-, 8-, and nonprenyl substitution, including the new 6-prenyl-licoisoflavanone (1) and two previously unknown compounds (4 and 7). Relative (100%) qNMR established quantitative metabolome patterns suitable for species discrimination and plant metabolite studies. Absolute qNMR with combined external and internal (solvent) calibration (ECIC) identified and quantified 158 GU metabolites. HMBC-supported qHNMR analysis of flavonoid metabolomes ("flavonomics") empowers the exploration of structure-abundance-activity relationships of designated bioactivity. Its ability to identify and quantify numerous metabolites simultaneously and without identical reference materials opens new avenues for natural product discovery and botanical quality control and can be adopted to other flavonoid- and chalcone-containing taxa.
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Affiliation(s)
| | | | | | - Li-She Gan
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | | | - Dianpeng Li
- Guangxi Key Laboratory of Functional Phytochemicals Research and Utilization, Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, China
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Fan X, Bai J, Hu M, Xu Y, Zhao S, Sun Y, Wang B, Hu J, Li Y. Drug interaction study of flavonoids toward OATP1B1 and their 3D structure activity relationship analysis for predicting hepatoprotective effects. Toxicology 2020; 437:152445. [PMID: 32259555 DOI: 10.1016/j.tox.2020.152445] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 03/14/2020] [Accepted: 03/25/2020] [Indexed: 12/22/2022]
Abstract
Organic anion transporting polypeptide 1B1 (OATP1B1), a liver-specific uptake transporter, was associated with drug induced liver injury (DILI). Screening and identifying potent OATP1B1 inhibitors with little toxicity is of great value in reducing OATP1B1-mediated DILI. Flavonoids are a group of polyphenols ubiquitously present in vegetables, fruits and herbal products, some of them were reported to produce transporter-mediated DDI. Our objective was to investigate potential inhibitors of OATP1B1 from 99 flavonoids, and to assess the hepatoprotective effects on bosentan induced liver injury. Eight flavonoids, including biochanin A, hispidulin, isoliquiritigenin, isosinensetin, kaempferol, licochalcone A, luteolin and sinensetin exhibited significant inhibition (>50 %) on OATP1B1 in OATP1B1-HEK293 cells, which reduced the OATP1B1-mediated influx of methotrexate, accordingly decreased its cytotoxicity in OATP1B1-HEK293 cells and increased its AUC0-t in different extents in rats, from 28.27%-82.71 %. In bosentan-induced rat liver injury models, 8 flavonoids reduced the levels of serum total bile acid (TBA) and the liver concentration of bosentan in different degrees. Among them, kaempferol decreased the concentration most significantly, by 54.17 %, which indicated that flavonoids may alleviate bosentan-induced liver injury by inhibiting OATP1B1-mediated bosentan uptake. Furthermore, the pharmacophore model indicated the hydrogen bond acceptors and hydrogen bond donors may play critical role in the potency of flavonoids inhibition on OATP1B1. Taken together, our findings would provide helpful information for predicting the potential risks of flavonoid-containing food/herb-drug interactions in humans and alleviating bosentan -induced liver injury by OATP1B1 regulation.
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Affiliation(s)
- Xiaoqing Fan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Jie Bai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Minwan Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Yanxia Xu
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, 100069, China
| | - Shengyu Zhao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Yanhong Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Baolian Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
| | - Jinping Hu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.
| | - Yan Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Department of Drug Metabolism, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Beijing Key Laboratory of Active Substances Discovery and Drug Ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China
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Li JJ, Zhang X, Shen XC, Long QD, Xu CY, Tan CJ, Lin Y. Phytochemistry and biological properties of isoprenoid flavonoids from Sophora flavescens Ait. Fitoterapia 2020; 143:104556. [PMID: 32194169 DOI: 10.1016/j.fitote.2020.104556] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 01/05/2023]
Abstract
Sophora flavescens Ait (Ku-Shen in Chinese) is a popular traditional Chinese herbal medicine in China for a long history. It shows significant pharmacological activities in the treatment of dysentery, eczema, fever, jaundice, vulvar swelling, gastrointestinal hemorrhage and inflammatory disorders. Alkaloids and flavonoids have been identified as virtual components, especially isoprenoid flavanonols are a class of characteristic compounds for S. flavescens. However, few studies have focused on isoprenoid flavonoids analyses and no comprehensive review has yet been published. In the current review, we systematically summarized the isoprenoid flavonoids, a total of 55 compounds have been isolated from S. flavescens, particularly an isoprenyl and a lavandulyl group in backbone structures. Further pharmacological activities, qualitative and quantitative chemical analyses research will contribute to the development of natural isoprenoid flavonoid products in S. flavescens.
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Affiliation(s)
- Jing-Jing Li
- The Department of Pharmacology of Materia Medica (the State Key Laboratory of Functions and Applications of Medicinal Plants, the Key Laboratory of Optimal Utilizaiton of Natural Medicine Resources) School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guizhou, 550025, China
| | - Xu Zhang
- The Department of Pharmacology of Materia Medica (the State Key Laboratory of Functions and Applications of Medicinal Plants, the Key Laboratory of Optimal Utilizaiton of Natural Medicine Resources) School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guizhou, 550025, China
| | - Xiang-Chun Shen
- The Department of Pharmacology of Materia Medica (the State Key Laboratory of Functions and Applications of Medicinal Plants, the Key Laboratory of Optimal Utilizaiton of Natural Medicine Resources) School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guizhou, 550025, China
| | - Qing-de Long
- The Department of Pharmacology of Materia Medica (the State Key Laboratory of Functions and Applications of Medicinal Plants, the Key Laboratory of Optimal Utilizaiton of Natural Medicine Resources) School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guizhou, 550025, China
| | - Chang-Yan Xu
- The Department of Pharmacology of Materia Medica (the State Key Laboratory of Functions and Applications of Medicinal Plants, the Key Laboratory of Optimal Utilizaiton of Natural Medicine Resources) School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guizhou, 550025, China
| | - Chuan-Jiao Tan
- The Department of Pharmacology of Materia Medica (the State Key Laboratory of Functions and Applications of Medicinal Plants, the Key Laboratory of Optimal Utilizaiton of Natural Medicine Resources) School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guizhou, 550025, China
| | - Yan Lin
- The Department of Pharmacology of Materia Medica (the State Key Laboratory of Functions and Applications of Medicinal Plants, the Key Laboratory of Optimal Utilizaiton of Natural Medicine Resources) School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guizhou, 550025, China.
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Natural Chalcones in Chinese Materia Medica: Licorice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:3821248. [PMID: 32256642 PMCID: PMC7102474 DOI: 10.1155/2020/3821248] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 02/07/2020] [Indexed: 12/17/2022]
Abstract
Licorice is an important Chinese materia medica frequently used in clinical practice, which contains more than 20 triterpenoids and 300 flavonoids. Chalcone, one of the major classes of flavonoid, has a variety of biological activities and is widely distributed in nature. To date, about 42 chalcones have been isolated and identified from licorice. These chalcones play a pivotal role when licorice exerts its pharmacological effects. According to the research reports, these compounds have a wide range of biological activities, containing anticancer, anti-inflammatory, antimicrobial, antioxidative, antiviral, antidiabetic, antidepressive, hepatoprotective activities, and so on. This review aims to summarize structures and biological activities of chalcones from licorice. We hope that this work can provide a theoretical basis for the further studies of chalcones from licorice.
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Huang W, Ding L, Zhang N, Li W, Koike K, Qiu F. Flavonoids from Eucommia ulmoides and their in vitro hepatoprotective activities. Nat Prod Res 2020; 35:3584-3591. [PMID: 31992074 DOI: 10.1080/14786419.2020.1715402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A phytochemical investigation of the barks of Eucommia ulmoides Oliv. resulted in the isolation of 18 flavonoids (1-18). The new compound, eucommiaflavone (1) was structurally elucidated by various spectroscopic analyses. In particular, Mo2(OAc)4-induced circular dichroism (ICD) analysis was applied to determine the absolute configuration of 1. Furthermore, five flavonoids (4, 9, 11, 13, and 15) revealed significant in vitro hepatoprotective activity against D-galactosamine-induced cytotoxicity in human hepatoma HepG2 cells.
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Affiliation(s)
- Weixing Huang
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Tianjin Key Laboratory of TCM Chemistry and Analysis, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Liqin Ding
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Nan Zhang
- Tianjin Key Laboratory of TCM Chemistry and Analysis, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Wei Li
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Japan
| | - Kazuo Koike
- Faculty of Pharmaceutical Sciences, Toho University, Funabashi, Japan
| | - Feng Qiu
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Tianjin Key Laboratory of TCM Chemistry and Analysis, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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Luo N, Liu J, Wang S, Wang C. DBU-promoted ring-opening reactions of multi-substituted donor–acceptor cyclopropanes: access to functionalized chalcones with a quaternary carbon group. Org Biomol Chem 2020; 18:9210-9215. [DOI: 10.1039/d0ob01895c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A strategy to synthesize highly stereoselective chalcones with alkylcyanoacetate subunits via DBU-promoted ring-opening reactions of multi-substituted D–A cyclopropanes has been developed without the requirement of a transition metal catalyst and extra solvent.
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Affiliation(s)
- Naili Luo
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Jiamin Liu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Shan Wang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Cunde Wang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
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Retrochalcone Echinatin Triggers Apoptosis of Esophageal Squamous Cell Carcinoma via ROS- and ER Stress-Mediated Signaling Pathways. Molecules 2019; 24:molecules24224055. [PMID: 31717502 PMCID: PMC6891341 DOI: 10.3390/molecules24224055] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/06/2019] [Accepted: 11/06/2019] [Indexed: 01/04/2023] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is a poor prognostic cancer with a low five-year survival rate. Echinatin (Ech) is a retrochalone from licorice. It has been used as a herbal medicine due to its anti-inflammatory and anti-oxidative effects. However, its anticancer activity or underlying mechanism has not been elucidated yet. Thus, the objective of this study was to investigate the anti-tumor activity of Ech on ESCC by inducing ROS and ER stress dependent apoptosis. Ech inhibited ESCC cell growth in anchorage-dependent and independent analysis. Treatment with Ech induced G2/M phase of cell cycle and apoptosis of ESCC cells. It also regulated their related protein markers including p21, p27, cyclin B1, and cdc2. Ech also led to phosphorylation of JNK and p38. Regarding ROS and ER stress formation associated with apoptosis, we found that Ech increased ROS production, whereas its increase was diminished by NAC treatment. In addition, ER stress proteins were induced by treatment with Ech. Moreover, Ech enhanced MMP dysfunction and caspases activity. Furthermore, it regulated related biomarkers. Taken together, our results suggest that Ech can induce apoptosis in human ESCC cells via ROS/ER stress generation and p38 MAPK/JNK activation.
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Chen K, Hu ZM, Song W, Wang ZL, He JB, Shi XM, Cui QH, Qiao X, Ye M. Diversity of O-Glycosyltransferases Contributes to the Biosynthesis of Flavonoid and Triterpenoid Glycosides in Glycyrrhiza uralensis. ACS Synth Biol 2019; 8:1858-1866. [PMID: 31284719 DOI: 10.1021/acssynbio.9b00171] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Licorice (Glycyrrhiza uralensis) is a popular medicinal plant containing more than 70 flavonoid and triterpenoid glycosides. Thus far, only a few reports are available on the glycosylation enzymes involved in their biosynthesis. In this work, we mined the transcriptome data of G. uralensis and discovered 43 candidate genes for O-glycosyltransferase (O-GT). Among them, 17 genes could be expressed in E. coli, and functions of the enzymes were analyzed by catalyzing eight native substrates. As a result, we characterized 11 O-GTs, including isoflavone 7-O-GTs, flavonol 3-O-GTs, and promiscuous O-GTs catalyzing flavones, chalcones, and triterpenoids. They could efficiently synthesize key licorice compounds such as liquiritin, isoliquiritin, ononin, and 3-O-β-d-glucuronosyl glycyrrhetinic acid. The diversity of O-GTs contributes to the biosynthesis of various glycosides in licorice. These enzymes could also be used as biocatalytic tools to synthesize other bioactive O-glycosides.
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Affiliation(s)
- Kuan Chen
- State Key Laboratory of Natural and Biomimetic Drugs & Center for Medicinal Herbal Resources and Synthetic Biology, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Zhi-min Hu
- State Key Laboratory of Natural and Biomimetic Drugs & Center for Medicinal Herbal Resources and Synthetic Biology, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Wei Song
- State Key Laboratory of Natural and Biomimetic Drugs & Center for Medicinal Herbal Resources and Synthetic Biology, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Zi-long Wang
- State Key Laboratory of Natural and Biomimetic Drugs & Center for Medicinal Herbal Resources and Synthetic Biology, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Jun-bin He
- State Key Laboratory of Natural and Biomimetic Drugs & Center for Medicinal Herbal Resources and Synthetic Biology, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Xiao-meng Shi
- State Key Laboratory of Natural and Biomimetic Drugs & Center for Medicinal Herbal Resources and Synthetic Biology, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Qing-hua Cui
- Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Peking University, Beijing 100191, China
| | - Xue Qiao
- State Key Laboratory of Natural and Biomimetic Drugs & Center for Medicinal Herbal Resources and Synthetic Biology, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
| | - Min Ye
- State Key Laboratory of Natural and Biomimetic Drugs & Center for Medicinal Herbal Resources and Synthetic Biology, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
- Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education, Peking University, Beijing 100191, China
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The Alexipharmic Mechanisms of Five Licorice Ingredients Involved in CYP450 and Nrf2 Pathways in Paraquat-Induced Mice Acute Lung Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:7283104. [PMID: 31182998 PMCID: PMC6512064 DOI: 10.1155/2019/7283104] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 09/30/2018] [Accepted: 12/03/2018] [Indexed: 12/18/2022]
Abstract
Oxidative stress is an important mechanism in acute lung injury (ALI) induced by paraquat (PQ), one of the most widely used herbicides in developing countries. In clinical prophylaxis and treatment, licorice is a widely used herbal medicine in China due to its strong alexipharmic characteristics. However, the corresponding biochemical mechanism of antioxidation and detoxification enzymes induced by licorice's ingredients is still not fully demonstrated. In this study, the detoxification effect of licorice was evaluated in vivo and in vitro. The detoxification and antioxidation effect of its active ingredients involved in the treatment was screened systematically according to Absorption, Distribution, Metabolism, and Excretion (ADME): predictions and evidence-based literature mining methods in silico approach. Data shows that licorice alleviate pulmonary edema and fibrosis, decrease Malondialdehyde (MDA) contents and increase Superoxide Dismutase (SOD) activity in PQ-induced ALI mice, protect the morphologic appearance of lung tissues, induce cytochrome 3A4 (CYA3A4) and Nuclear factor erythroid 2-related factor 2 (Nrf2) expression to active detoxification pathways, reduce the accumulation of PQ in vivo, protect or improve the liver and renal function of mice, and increase the survival rate. The 104 genes of PPI network contained all targets of licorice ingredients and PQ, which displayed the two redox regulatory enzymatic group modules cytochrome P450 (CYP450) and Nrf2 via a score-related graphic theoretic clustering algorithm in silico. According to ADME properties, glycyrol, isolicoflavonol, licochalcone A, 18beta-glycyrrhetinic acid, and licoisoflavone A were employed due to their oral bioavailability (OB) ≥ 30%, drug-likeness (DL) ≥ 0.1, and being highly associated with CYP450 and Nrf2 pathways, as potential activators to halt PQ-induced cells death in vitro. Both 3A4 inhibitor and silenced Nrf2 gene decreased the alexipharmic effects of those ingredients significantly. All these disclosed the detoxification and antioxidation effects of licorice on acute lung injury induced by PQ, and glycyrol, isolicoflavonol, licochalcone A, 18beta-glycyrrhetinic acid, and licoisoflavone A upregulated CYP450 and Nrf2 pathways underlying the alexipharmic mechanisms of licorice.
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Nrf2 signaling and autophagy are complementary in protecting lipopolysaccharide/d-galactosamine-induced acute liver injury by licochalcone A. Cell Death Dis 2019; 10:313. [PMID: 30952839 PMCID: PMC6450927 DOI: 10.1038/s41419-019-1543-z] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 01/09/2019] [Accepted: 03/21/2019] [Indexed: 12/12/2022]
Abstract
Licochalcone A (Lico A), isolated from Xinjiang licorice Glycyrrhiza inflate, has been shown to have antioxidative potential via the activation of nuclear factor-erythroid 2-related factor 2 (Nrf2) activation, which is involved in the prevention of acetaminophen-induced hepatotoxicity. The purpose of the current study was to further explore the protective effect of Lico A against lipopolysaccharide/d-galactosamine (LPS/GalN)-induced acute liver injury (ALI) and its underlying molecular mechanisms. Our results found that treatment with Lico A significantly reduced in LPS/GalN-induced hepatotoxicity by lessening lethality, alleviating histopathological liver changes, decreasing the alanine transaminase, and aspartate aminotransferase levels, attenuating the secretion of inflammatory cytokines, and regulating oxidative markers. Furthermore, Lico A efficiently alleviated LPS-induced inflammatory response by inhibiting TLR4-MAPK and -NF-κB, as well as the Txnip-NLRP3 signaling pathway. Meanwhile, Lico A induced the activation of Nrf2 and QSTM1 (P62) signaling and promoted autophagy involved in AMP-activated protein kinase (AMPK)-the transcription factor EB (TFEB) signaling, which may contribute to its hepatoprotective activity. Additional mechanistic investigations to evaluate the dependence of the hepatoprotective role of Lico A on Nrf2 revealed that a lack of Nrf2 promoted Lico A-induced autophagy, which contributed to the hepatoprotective effect of Lico A in Nrf2−/− mice. In addition, cotreatment with autophagy inhibitor (3-methyladenine, 3-MA) alleviated but did not abrogate the hepatoprotective effect of Lico A, which may be attributed to its ability to activate Nrf2. Our study firstly suggests that Lico A has protective potential against LPS/GalN-induced hepatotoxicity, which may be strongly associated with activation of Nrf2 and autophagy.
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Determination and pharmacokinetic study of echinatin by UPLC-MS/MS in rat plasma. J Pharm Biomed Anal 2019; 168:133-137. [PMID: 30807917 DOI: 10.1016/j.jpba.2019.02.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 01/30/2019] [Accepted: 02/18/2019] [Indexed: 12/20/2022]
Abstract
Echinatin, one of the bioactive components of licorice, has exhibited diverse therapeutic effects, including anti-inflammatory and anti-oxidant effects. However, determination and pharmacokinetic study of echinatin in biomatrices have not been conducted. In this study, a simple and fast ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method for the quantification of echinatin in rat plasma was developed, fully validated and subsequently well used in a pharmacokinetic research of echinatin after oral and intravenous administration. Rat plasma samples were operated with a simple one-step acetonitrile precipitation, and licochalcone A was used as the internal standard. Chromatographic separation of echinatin was conducted using an UPLC BEN C18 column and a gradient water (containing 0.1% formic acid)-acetonitrile mobile phase. A Waters XEVO TQS-micro Triple-Quadrupole Tandem Mass Spectrometer operating in positive electrospray ionization mode was used for detection. The approach was proved to be linear in the range of 1-1000 ng/mL and well satisfy the requirements from the guidelines of FDA. A pharmacokinetic study of echinatin was carried out by the new developed method following intravenous and oral administration to adult male Sprague-Dawley rats. Echinatin was demonstrated to be quickly absorbed and eliminated and extensively distributed with an absolute bioavailability of approximately 6.81%.
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41
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Antioxidant Mechanisms of Echinatin and Licochalcone A. Molecules 2018; 24:molecules24010003. [PMID: 30577443 PMCID: PMC6337356 DOI: 10.3390/molecules24010003] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 01/15/2023] Open
Abstract
Echinatin and its 1,1-dimethyl-2-propenyl derivative licochalcone A are two chalcones found in the Chinese herbal medicine Gancao. First, their antioxidant mechanisms were investigated using four sets of colorimetric measurements in this study. Three sets were performed in aqueous solution, namely Cu2+-reduction, Fe3+-reduction, and 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide radical (PTIO•)-scavenging measurements, while 1,1-diphenyl-2-picrylhydrazyl radical (DPPH•)-scavenging colorimetric measurements were conducted in methanol solution. The four sets of measurements showed that the radical-scavenging (or metal-reduction) percentages for both echinatin and licochalcone A increased dose-dependently. However, echinatin always gave higher IC50 values than licochalcone A. Further, each product of the reactions of the chalcones with DPPH• was determined using electrospray ionization quadrupole time-of-flight tandem mass spectrometry (UPLC-ESI-Q-TOF-MS/MS). The UPLC-ESI-Q-TOF-MS/MS determination for echinatin yielded several echinatin–DPPH adduct peaks (m/z 662, 226, and 196) and dimeric echinatin peaks (m/z 538, 417, and 297). Similarly, that for licochalcone A yielded licochalcone A-DPPH adduct peaks (m/z 730, 226, and 196) and dimeric licochalcone A peaks (m/z 674 and 553). Finally, the above experimental data were analyzed using mass spectrometry data analysis techniques, resonance theory, and ionization constant calculations. It was concluded that, (i) in aqueous solution, both echinatin and licochalcone A may undergo an electron transfer (ET) and a proton transfer (PT) to cause the antioxidant action. In addition, (ii) in alcoholic solution, hydrogen atom transfer (HAT) antioxidant mechanisms may also occur for both. HAT may preferably occur at the 4-OH, rather than the 4′-OH. Accordingly, the oxygen at the 4-position participates in radical adduct formation (RAF). Lastly, (iii) the 1,1-dimethyl-2-propenyl substituent improves the antioxidant action in both aqueous and alcoholic solutions.
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Iranshahy M, Iranshahi M, Abtahi SR, Karimi G. The role of nuclear factor erythroid 2-related factor 2 in hepatoprotective activity of natural products: A review. Food Chem Toxicol 2018; 120:261-276. [DOI: 10.1016/j.fct.2018.07.024] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 12/15/2022]
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Hajirahimkhan A, Mbachu O, Simmler C, Ellis SG, Dong H, Nikolic D, Lankin DC, van Breemen RB, Chen SN, Pauli GF, Dietz BM, Bolton JL. Estrogen Receptor (ER) Subtype Selectivity Identifies 8-Prenylapigenin as an ERβ Agonist from Glycyrrhiza inflata and Highlights the Importance of Chemical and Biological Authentication. JOURNAL OF NATURAL PRODUCTS 2018; 81:966-975. [PMID: 29641206 PMCID: PMC5928484 DOI: 10.1021/acs.jnatprod.7b01070] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Postmenopausal women are increasingly using botanicals for menopausal symptom relief due to the increased breast cancer risk associated with traditional estrogen therapy. The deleterious effects of estrogens are associated with estrogen receptor (ER)α-dependent proliferation, while ERβ activation could enhance safety by opposing ERα effects. Three medicinal licorice species, Glycyrrhiza glabra ( G. glabra), G. uralensis, and G. inflata, were studied for their differential estrogenic efficacy. The data showed higher estrogenic potency for G. inflata in an alkaline phosphatase induction assay in Ishikawa cells (ERα) and an estrogen responsive element (ERE)-luciferase assay in MDA-MB-231/β41 breast cancer cells (ERβ). Bioassay-guided fractionation of G. inflata led to the isolation of 8-prenylapigenin (3). Surprisingly, a commercial batch of 3 was devoid of estrogenic activity. Quality control by MS and qNMR revealed an incorrect compound, 4'- O-methylbroussochalcone B (10), illustrating the importance of both structural and purity verification prior to any biological investigations. Authentic and pure 3 displayed 14-fold preferential ERβ agonist activity. Quantitative analyses revealed that 3 was 33 times more concentrated in G. inflata compared to the other medicinal licorice extracts. These data suggest that standardization of G. inflata to 3 might enhance the safety and efficacy of G. inflata supplements used for postmenopausal women's health.
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Affiliation(s)
- Atieh Hajirahimkhan
- UIC/NIH
Center for Botanical Dietary Supplements Research and Center for Natural
Product Technologies (CENAPT), Department of Medicinal Chemistry and
Pharmacognosy, College of Pharmacy, M/C 781, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612-7231, United States
| | - Obinna Mbachu
- UIC/NIH
Center for Botanical Dietary Supplements Research and Center for Natural
Product Technologies (CENAPT), Department of Medicinal Chemistry and
Pharmacognosy, College of Pharmacy, M/C 781, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612-7231, United States
| | - Charlotte Simmler
- UIC/NIH
Center for Botanical Dietary Supplements Research and Center for Natural
Product Technologies (CENAPT), Department of Medicinal Chemistry and
Pharmacognosy, College of Pharmacy, M/C 781, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612-7231, United States
| | - Sarah G. Ellis
- UIC/NIH
Center for Botanical Dietary Supplements Research and Center for Natural
Product Technologies (CENAPT), Department of Medicinal Chemistry and
Pharmacognosy, College of Pharmacy, M/C 781, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612-7231, United States
| | - Huali Dong
- UIC/NIH
Center for Botanical Dietary Supplements Research and Center for Natural
Product Technologies (CENAPT), Department of Medicinal Chemistry and
Pharmacognosy, College of Pharmacy, M/C 781, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612-7231, United States
| | - Dejan Nikolic
- UIC/NIH
Center for Botanical Dietary Supplements Research and Center for Natural
Product Technologies (CENAPT), Department of Medicinal Chemistry and
Pharmacognosy, College of Pharmacy, M/C 781, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612-7231, United States
| | - David C. Lankin
- UIC/NIH
Center for Botanical Dietary Supplements Research and Center for Natural
Product Technologies (CENAPT), Department of Medicinal Chemistry and
Pharmacognosy, College of Pharmacy, M/C 781, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612-7231, United States
| | - Richard B. van Breemen
- UIC/NIH
Center for Botanical Dietary Supplements Research and Center for Natural
Product Technologies (CENAPT), Department of Medicinal Chemistry and
Pharmacognosy, College of Pharmacy, M/C 781, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612-7231, United States
| | - Shao-Nong Chen
- UIC/NIH
Center for Botanical Dietary Supplements Research and Center for Natural
Product Technologies (CENAPT), Department of Medicinal Chemistry and
Pharmacognosy, College of Pharmacy, M/C 781, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612-7231, United States
| | - Guido F. Pauli
- UIC/NIH
Center for Botanical Dietary Supplements Research and Center for Natural
Product Technologies (CENAPT), Department of Medicinal Chemistry and
Pharmacognosy, College of Pharmacy, M/C 781, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612-7231, United States
| | - Birgit M. Dietz
- UIC/NIH
Center for Botanical Dietary Supplements Research and Center for Natural
Product Technologies (CENAPT), Department of Medicinal Chemistry and
Pharmacognosy, College of Pharmacy, M/C 781, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612-7231, United States
| | - Judy L. Bolton
- UIC/NIH
Center for Botanical Dietary Supplements Research and Center for Natural
Product Technologies (CENAPT), Department of Medicinal Chemistry and
Pharmacognosy, College of Pharmacy, M/C 781, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612-7231, United States
- E-mail (J. L. Bolton): . Tel: +1 (312) 996-5280. Fax: +1 (312) 996-7107
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