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Neuroprotective Potential of Biflavone Ginkgetin: A Review. Life (Basel) 2023; 13:life13020562. [PMID: 36836918 PMCID: PMC9964866 DOI: 10.3390/life13020562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/09/2023] [Accepted: 02/11/2023] [Indexed: 02/19/2023] Open
Abstract
Neurological disorders are becoming more common, and there is an intense search for molecules that can help treat them. Several natural components, especially those from the flavonoid group, have shown promising results. Ginkgetin is the first known biflavonoid, a flavonoid dimer isolated from ginkgo (Ginkgo biloba L.). Later, its occurrence was discovered in more than 20 different plant species, most of which are known for their use in traditional medicine. Herein we have summarized the data on the neuroprotective potential of ginkgetin. There is evidence of protection against neuronal damage caused by ischemic strokes, neurotumors, Alzheimer's disease (AD), and Parkinson's disease (PD). Beneficial effects in ischemic strokes have been demonstrated in animal studies in which injection of ginkgetin before or after onset of the stoke showed protection from neuronal damage. AD protection has been the most studied to date. Possible mechanisms include inhibition of reactive oxygen species, inhibition of β-secretase, inhibition of Aβ fibril formation, amelioration of inflammation, and antimicrobial activity. Ginkgetin has also shown positive effects on the relief of PD symptoms in animal studies. Most of the available data are from in vitro or in vivo animal studies, where ginkgetin showed promising results, and further clinical studies should be conducted.
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Chang Y, Xia S, Fei P, Feng H, Fan F, Liu Y, Qin L, Ma L, Song Q, Liu Y. Houttuynia cordata Thunb. crude extract inactivates Cronobacter sakazakii: Antibacterial components, antibacterial mechanism, and application as a natural disinfectant. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.109467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Wang N, Zhu Y, Li D, Basang W, Huang Y, Liu K, Luo Y, Chen L, Li C, Zhou X. 2-Methyl Nonyl Ketone From Houttuynia Cordata Thunb Alleviates LPS-Induced Inflammatory Response and Oxidative Stress in Bovine Mammary Epithelial Cells. Front Chem 2022; 9:793475. [PMID: 35174140 PMCID: PMC8842123 DOI: 10.3389/fchem.2021.793475] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/28/2021] [Indexed: 11/17/2022] Open
Abstract
Mastitis is one of the most common diseases in dairy cows, causing huge economic losses to the dairy industry every year. Houttuynia Cordata Thunb (H.cordata) is a traditional Chinese herbal medicine that is widely used in clinical treatment. However, the therapeutic effect of 2-methyl nonyl ketone (MNK), the main volatile oil component in the aqueous vapor extract of H. cordata, on mastitis has been less studied. The purpose of this study was to investigate the protective effect and mechanism of MNK against lipopolysaccharide (LPS)-induced mastitis in vitro. The results showed that MNK pretreatment of the bovine mammary epithelial cell line (MAC-T) enhanced cell viability and inhibited LPS-induced reactive oxygen species (ROS) production and inflammatory response. MNK reduced the production of pro-inflammatory cytokines such as interleukin (IL) and tumor necrosis factor-α (TNF-α) by repressing LPS-induced activation of Toll-like receptor 4-nuclear factor-κB (TLR4-NF-κB) signaling pathway. In addition, MNK protected cells from inflammatory responses by blocking the downstream signaling of inflammatory factors. MNK also induced Heme Oxygenase-1 (HO-1) production by Nuclear factor erythroid 2-related factor 2 (Nrf2) pathway through AKT and extracellular signal-regulated kinase (ERK) pathways, thereby reducing LPS-induced oxidative damage for MAC-T cells. In conclusion, MNK played a protective role against LPS-induced cell injury. This provides a theoretical basis for the research and development of MNK as a novel therapeutic agent for mastitis.
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Affiliation(s)
- Nan Wang
- College of Animal Sciences, Jilin University, Changchun, China
| | - Yanbin Zhu
- Tibet Academy of Agricultural and Animal Husbandry Sciences, Institute of Veterinary and Animal Husbandry, Lhasa, China
- State Key Laboratory of Hulless Barley and Yak Germplasm Resources and Genetic Improvement, Lhasa, China
| | - Dandan Li
- Reproductive Medical Center, Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun, China
| | - Wangdui Basang
- Tibet Academy of Agricultural and Animal Husbandry Sciences, Institute of Veterinary and Animal Husbandry, Lhasa, China
- State Key Laboratory of Hulless Barley and Yak Germplasm Resources and Genetic Improvement, Lhasa, China
| | - Yiqiu Huang
- College of Animal Sciences, Jilin University, Changchun, China
| | - Kening Liu
- College of Animal Sciences, Jilin University, Changchun, China
| | - Yuxin Luo
- College of Animal Sciences, Jilin University, Changchun, China
| | - Lu Chen
- College of Animal Sciences, Jilin University, Changchun, China
| | - Chunjin Li
- College of Animal Sciences, Jilin University, Changchun, China
- *Correspondence: Chunjin Li, ; Xu Zhou,
| | - Xu Zhou
- College of Animal Sciences, Jilin University, Changchun, China
- *Correspondence: Chunjin Li, ; Xu Zhou,
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Ju L, Zhang J, Wang F, Zhu D, Pei T, He Z, Han Z, Wang M, Ma Y, Xiao W. Chemical profiling of Houttuynia cordata Thunb. by UPLC-Q-TOF-MS and analysis of its antioxidant activity in C2C12 cells. J Pharm Biomed Anal 2021; 204:114271. [PMID: 34325249 DOI: 10.1016/j.jpba.2021.114271] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/25/2021] [Accepted: 07/15/2021] [Indexed: 12/09/2022]
Abstract
Houttuynia cordata Thunb. ("Yu-Xing-Cao"), a traditional Chinese medicinal herb, has long been used to treat various diseases. However, detailed information regarding the chemical constituents of H. cordata aqueous extract is lacking, and the molecular basis of its beneficial effects on muscle is unknown. To investigate these points, in this study, we used ultra-performance liquid chromatography coupled with quadrupole-time-of-flight-mass spectrometry (UPLC-Q-TOF-MS) in positive and negative ion modes to profile and identify the major constituents of H. cordata water extract. A total of 63 peaks were identified based on mass and fragmentation characteristics, including 29 organic acids and their glycosides, 17 flavonoids, 7 volatiles, 4 pyrimidine and purine derivatives, 2 alkaloids, 2 amino acids, 1 isovanillin, and 1 coumarin. The total flavonoid and polyphenol contents of the extract were 4.77 and 139.15 mg/mL, respectively, by ultraviolet spectrophotometry. The cytoprotective activity of H. cordata aqueous extract was evaluated using C2C12 cells treated with tumor necrosis factor (TNF)-α to induce oxidative challenge. The TNF-α induced decrease in cell viability was reversed by treatment for 48 h with the extract; moreover, superoxide dismutase activity was increased while reactive oxygen species level was decreased. These results provide molecular-level evidence for the antioxidant effect of H. cordata extract and highlight its therapeutic potential for the treatment of muscle injury or diseases caused by oxidative stress.
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Affiliation(s)
- Liliang Ju
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Jiaxing Zhang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Fujing Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Daoqi Zhu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Tingting Pei
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Zhuoen He
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Zhongxiao Han
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Mingqing Wang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.
| | - Yun Ma
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Wei Xiao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China; Department of Traditional Chinese Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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Seo YH, Trinh TA, Ryu SM, Kim HS, Choi G, Moon BC, Shim SH, Jang DS, Lee D, Kang KS, Lee J. Chemical Constituents from the Aerial Parts of Elsholtzia ciliata and Their Protective Activities on Glutamate-Induced HT22 Cell Death. JOURNAL OF NATURAL PRODUCTS 2020; 83:3149-3155. [PMID: 32991171 DOI: 10.1021/acs.jnatprod.0c00756] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A new phenolic glucoside, (7E,9E)-3-hydroxyavenalumic acid-3-O-[6'-O-(E)-caffeoyl]-β-d-glucopyranoside (1), and three new acetylated flavone glycosides, acacetin-7-O-[β-d-glucopyranosyl(1″″→2″)-4‴-O-acetyl-α-l-rhamnopyranosyl(1‴→6″)]-β-d-glucopyranoside (3), acacetin-7-O-[6″″-O-acetyl-β-d-glucopyranosyl(1″″→2″)-3‴-O-acetyl-α-l-rhamnopyranosyl(1‴→6″)]-β-d-glucopyranoside (5), and acacetin-7-O-[3″″,6″″-di-O-acetyl-β-d-glucopyranosyl(1″″→2″)-4‴-O-acetyl-α-l-rhamnopyranosyl(1‴→6″)]-β-d-glucopyranoside (7), as well as 34 known compounds (2, 4, 6, and 8-38) were isolated from the aerial parts of Elsholtzia ciliata. The chemical structures of the new compounds were determined by spectroscopic/spectrometric data interpretation using NMR and HRESIMS. The neuroprotective effect of the isolated compounds was evaluated by a cell viability assay on HT22 murine hippocampal neuronal cells. Among them, 23 compounds, including new substances 1 and 3, exhibited neuroprotective effects against glutamate-induced HT22 cell death. In particular, compounds 2, 16, 17, 20, 22, 28, 29, and 31 presented potent neuroprotective effects with EC50 values of 1.5-8.3 μM.
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Affiliation(s)
- Young Hye Seo
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine (KIOM), Naju 58245, Republic of Korea
| | - Tuy An Trinh
- College of Korean Medicine, Gachon University, Seongnam 13120, Republic of Korea
| | - Seung Mok Ryu
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine (KIOM), Naju 58245, Republic of Korea
| | - Hyo Seon Kim
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine (KIOM), Naju 58245, Republic of Korea
| | - Goya Choi
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine (KIOM), Naju 58245, Republic of Korea
| | - Byeong Cheol Moon
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine (KIOM), Naju 58245, Republic of Korea
| | - Sang Hee Shim
- College of Pharmacy, Duksung Women's University, Seoul 01369, Republic of Korea
| | - Dae Sik Jang
- Department of Life and Nanopharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Dongho Lee
- Department of Biosystems and Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Ki Sung Kang
- College of Korean Medicine, Gachon University, Seongnam 13120, Republic of Korea
| | - Jun Lee
- Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine (KIOM), Naju 58245, Republic of Korea
- University of Science & Technology (UST), Korean Convergence Medicine Major KIOM, Daejeon 34054, Republic of Korea
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Yang L, Ji W, Zhong H, Wang L, Zhu X, Zhu J. Anti-tumor effect of volatile oil from Houttuynia cordata Thunb. on HepG2 cells and HepG2 tumor-bearing mice. RSC Adv 2019; 9:31517-31526. [PMID: 35527944 PMCID: PMC9072394 DOI: 10.1039/c9ra06024c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 09/23/2019] [Indexed: 11/21/2022] Open
Abstract
The aim of this paper is to study the anti-tumor mechanism of volatile oil from Houttuynia cordata Thunb. (sodium new houttuyfonate, SNH). In vitro, SNH exhibited a concentration-dependent cytotoxic effect against four human cancer lines (HepG2, A2780, MCF-7, SKOV-3). SNH treatment with different concentrations induced HepG2 cells to exhibit varying degrees of morphological changes in apoptotic features, such as round shape, cell shrinkage and formation of apoptotic body. It was observed that SNH caused the decrease in Bcl-2 mRNA expression and triggered the apoptosis of HepG2 cells. Wound healing assay and RT-PCR results showed that the decrease in the expression level of MMP9 and VEGF was observed in HepG2 cells after treatment with SNH for 48 h, suggesting that the extracellular matrix pathway degradation was involved in the HepG2 cells migration. Moreover, we got an insight into the binding mode of SNH into the MMP9 active site through 3D pharmacophore models. Docking study and molecular dynamics (MD) simulation analysis sheds light on that SNH was completely embedded into the MMP9 active site and formed hydrogen bonds with key catalytic residues of MMP9, including Ala191, His190, Ala189 and Glu227. The prediction of SNH binding interaction energies in the MMP9 was almost in good agreement with the original inhibitor EN140. In vivo experiments, both SNH and cyclophosphamide significantly reduced tumor weights and their tumor inhibitory rates were 50.78% and 82.61% respectively. This study demonstrated that SNH was an apoptosis inducer in HepG2 cells. SNH has four possible functions, that it could induce apoptosis by mitochondria pathway in HepG2 cells, inhibit the tumor growth, regulate Bcl-2 family mRNA expression and effectively subdue migration of hepatocellular carcinoma cells by decreasing the expression of MMP9 and VEGF. Therefore, SNH might be a potential candidate drug for the treatment of hepatocellular carcinoma, which could provide a reference for further clinical research.
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Affiliation(s)
- Linsong Yang
- Biomedicine Laboratory, School of Pharmaceutical Engineering and Life Science, Changzhou University Changzhou Jiangsu 213164 P. R. China +86-519-86334598 +86-519-86334598
- Changzhou's Key Laboratory of Pharmaceutical Manufacture and Quality Control Engineering Changzhou 213164 P. R. China
| | - Weiwei Ji
- Biomedicine Laboratory, School of Pharmaceutical Engineering and Life Science, Changzhou University Changzhou Jiangsu 213164 P. R. China +86-519-86334598 +86-519-86334598
| | - Hui Zhong
- Biomedicine Laboratory, School of Pharmaceutical Engineering and Life Science, Changzhou University Changzhou Jiangsu 213164 P. R. China +86-519-86334598 +86-519-86334598
| | - Luyao Wang
- Biomedicine Laboratory, School of Pharmaceutical Engineering and Life Science, Changzhou University Changzhou Jiangsu 213164 P. R. China +86-519-86334598 +86-519-86334598
| | - Xiaolin Zhu
- Biomedicine Laboratory, School of Pharmaceutical Engineering and Life Science, Changzhou University Changzhou Jiangsu 213164 P. R. China +86-519-86334598 +86-519-86334598
- Changzhou's Key Laboratory of Pharmaceutical Manufacture and Quality Control Engineering Changzhou 213164 P. R. China
| | - Jie Zhu
- Biomedicine Laboratory, School of Pharmaceutical Engineering and Life Science, Changzhou University Changzhou Jiangsu 213164 P. R. China +86-519-86334598 +86-519-86334598
- Changzhou's Key Laboratory of Pharmaceutical Manufacture and Quality Control Engineering Changzhou 213164 P. R. China
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Petersen MJ, de Cássia Lemos Lima R, Kjaerulff L, Staerk D. Immobilized α-amylase magnetic beads for ligand fishing: Proof of concept and identification of α-amylase inhibitors in Ginkgo biloba. PHYTOCHEMISTRY 2019; 164:94-101. [PMID: 31103779 DOI: 10.1016/j.phytochem.2019.04.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 04/24/2019] [Accepted: 04/25/2019] [Indexed: 06/09/2023]
Abstract
Diabetes mellitus is a widespread metabolic disorder that affects millions of people around the world. The disease is a major burden on both economic and social levels, and there is a need for improved drugs with fewer side effects in the management of the disease. Current methods for isolation of anti-diabetic lead compounds from complex mixtures suffer from low resolution and sensitivity, and there is a need for improved alternatives. In this work, magnetic ligand fishing combined with high-performance liquid chromatography - photodiode-array detection - high-resolution mass spectrometry - solid-phase extraction - nuclear magnetic resonance spectroscopy (HPLC-PDA-HRMS-SPE-NMR) was developed and validated, with the aim of accelerating discovery of natural products targeting α-amylase. The enzyme was successfully immobilized onto magnetic beads and retained its catalytic activity for a period of 75 days, and the specificity of this method was successfully validated by testing the N-terminus coupled α-amylase immobilized magnetic beads on an artificial mixture. A proof of concept experiment, using a crude ethyl acetate extract of Ginkgo biloba leaves, proved that it was possible to fish out four α-amylase ligands. HPLC-PDA-HRMS-SPE-NMR analysis confirmed the presence of bilobetin, isoginkgetin, ginkgetin and sciadopitysin in the solutions resulting from α-amylase ligand fishing with Ginkgo biloba. IC50 curves revealed a reversed relationship between concentration of sciadopitysin and inhibition of α-amylase activity, suggesting that this compound activated the enzyme instead of inhibiting it.
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Affiliation(s)
- Malene J Petersen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Rita de Cássia Lemos Lima
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Louise Kjaerulff
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Dan Staerk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark.
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