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Wang S, Li C, Zhang L, Sun B, Cui Y, Sang F. Isolation and biological activity of natural chalcones based on antibacterial mechanism classification. Bioorg Med Chem 2023; 93:117454. [PMID: 37659218 DOI: 10.1016/j.bmc.2023.117454] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/07/2023] [Accepted: 08/21/2023] [Indexed: 09/04/2023]
Abstract
Bacterial infection, which is still one of the leading causes of death in humans, poses an enormous threat to the worldwide public health system. Antibiotics are the primary medications used to treat bacterial diseases. Currently, the discovery of antibiotics has reached an impasse, and due to the abuse of antibiotics resulting in bacterial antibiotic resistance, researchers have a critical desire to develop new antibacterial agents in order to combat the deteriorating antibacterial situation. Natural chalcones, the flavonoids consisting of two phenolic rings and a three-carbon α, β-unsaturated carbonyl system, possess a variety of biological and pharmacological properties, including anti-cancer, anti-inflammatory, antibacterial, and so on. Due to their potent antibacterial properties, natural chalcones possess the potential to become a new treatment for infectious diseases that circumvents existing antibiotic resistance. Currently, the majority of research on natural chalcones focuses on their synthesis, biological and pharmacological activities, etc. A few studies have been conducted on their antibacterial activity and mechanism. Therefore, this review focuses on the antibacterial activity and mechanisms of seventeen natural chalcones. Firstly, seventeen natural chalcones have been classified based on differences in antibacterial mechanisms. Secondly, a summary of the isolation and biological activity of seventeen natural chalcones was provided, with a focus on their antibacterial activity. Thirdly, the antibacterial mechanisms of natural chalcones were summarized, including those that act on bacterial cell membranes, biological macromolecules, biofilms, and quorum sensing systems. This review aims to lay the groundwork for the discovery of novel antibacterial agents based on chalcones.
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Affiliation(s)
- Sinan Wang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255049, PR China
| | - Chuang Li
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255049, PR China
| | - Liyan Zhang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255049, PR China
| | - Bingxia Sun
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255049, PR China
| | - Yuting Cui
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255049, PR China.
| | - Feng Sang
- School of Life Sciences and Medicine, Shandong University of Technology, Zibo 255049, PR China.
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2
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Wang W, Wang Y, Zhao W, Zhao C. A Straightforward Approach towards Antibacterial and Anti-Inflammatory Multifunctional Nanofiber Membranes with Sustained Drug Release Profiles. Macromol Biosci 2022; 22:e2200150. [PMID: 35856465 DOI: 10.1002/mabi.202200150] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 06/25/2022] [Indexed: 12/25/2022]
Abstract
Preventing bacterial infection and controlling the inflammatory response occupy important positions in wound treatment. Although loading wound dressings with antibacterial or anti-inflammatory drugs/molecules is an effective approach to address these issues, simultaneous sustained release of these drugs remains challenging. Herein, hydrophilic polyhexamethylene guanidine hydrochloride (PHGC) and hydrophobic indomethacin (Indo) are loaded in hydrophilic polyvinyl alcohol (PVA) and hydrophobic polycaprolactone (PCL) nanofibers respectively by bidirectional electrospinning to form an antibacterial and anti-inflammatory PCL-Indo/PVA-PHGC wound dressing. The fabricated nanofiber membrane exhibits 100% disinfection activity to both Gram-negative (E. coli) and Gram-positive (S. aureus) bacteria because of the release of the broad-spectrum antibacterial molecule PHGC. Additionally, the loading of Indo in the nanofiber membrane enhances the expression level of IL-10, while inhibiting those of IL-6 and TNF-α in the RAW264.7 mouse cells. In the interwoven membrane of PCL and PVA fibers, the release of hydrophobic Indo is hindered by hydrophilic PHGC and PVA fibers, and similarly, the release of hydrophilic PHGC is hindered by hydrophobic Indo and PCL fibers. In conclusion, the PCL-Indo/PVA-PHGC nanofiber membrane has excellent antibacterial, anti-inflammatory, and sustained-release effects, and thus regulates the immune microenvironment of the cells to potentially promote wound healing.
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Affiliation(s)
- Wenjie Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yilin Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Weifeng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China.,Med-X Center for Materials, Sichuan University, Chengdu, 610041, China
| | - Changsheng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China.,Med-X Center for Materials, Sichuan University, Chengdu, 610041, China
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3
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Suthiphasilp V, Rujanapun N, Kumboonma P, Chaiyosang B, Tontapha S, Maneerat T, Patrick BO, Andersen RJ, Duangyod T, Charoensup R, Laphookhieo S. Antidiabetic and Cytotoxic Activities of Rotenoids and Isoflavonoids Isolated from Millettia pachycarpa Benth. ACS OMEGA 2022; 7:24511-24521. [PMID: 35874225 PMCID: PMC9301698 DOI: 10.1021/acsomega.2c02163] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
A phytochemical investigation of the root and leaf extracts of Millettia pachycarpa Benth resulted in the isolation and identification of 16 compounds, including six rotenoids (1-6) and 10 prenylated isoflavonoids (7-16). Compound 4 was isolated as a scalemic mixture, which was resolved by chiral HPLC to afford (-)-(6aS,12aS)-12a-hydroxy-α-toxicarol (4) and (+)-(6aR,12aR)-12a-hydroxy-α-toxicarol (4). (+)-(6aR,12aR)-Millettiapachycarpin (3) and (-)-(6aS,12aS)-12a-hydroxy-α-toxicarol (4) were isolated as new compounds. The absolute configuration of (-)-(6R)-pachycarotenoid (2), (+)-(6aR,12aR)-millettiapachycarpin (3), (-)-(6aS,12aS)-4 and (+)-(6aR,12aR)-12a-hydroxy-α-toxicarol (4), (+)-(6aS,12aS)-(5), and (-)-(6aS,12aS,2″R)-sumatrol (6) were identified by electronic circular dichroism (ECD) data. (-)-(6aS,12aS,2″R)-Sumatrol (6) was also confirmed by X-ray diffraction analysis using Cu-Kα radiation. Antidiabetic activities, including α-glucosidase and α-amylase inhibitory activities, and cytotoxicities against lung cancer A549, colorectal cancer SW480, and leukemic K562 cells of some isolated compounds were evaluated. Of these, isolupalbigenin (11) exhibited the highest α-glucosidase inhibitory activity, with an IC50 value of 11.3 ± 0.2 μM, whereas the scalemic mixture of 12a-hydroxy-α-toxicarol (4) displayed the best α-amylase inhibitory activity, with an IC50 value of 106.9 ± 0.2 μM. Euchrenone b10 (15) exhibited the highest cytotoxicity against lung cancer A549, colorectal cancer SW480, and leukemic K562 cells, with IC50 values of 40.3, 39.1, and 15.1 μM, respectively. In addition, molecular docking simulations of α-glucosidase inhibition of the active compounds were studied.
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Affiliation(s)
- Virayu Suthiphasilp
- Center
of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Narawadee Rujanapun
- Medicinal
Plants Innovation Center of Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Pakit Kumboonma
- Department
of Applied Chemistry, Faculty of Science and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima 30000, Thailand
| | - Boonyanoot Chaiyosang
- Natural
Products Research Unit, Department of Chemistry and Center of Excellence
for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Sarawut Tontapha
- Institute
of Nanomaterials Research and Innovation for Energy, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Tharakorn Maneerat
- Center
of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
- Medicinal
Plants Innovation Center of Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Brian O Patrick
- Departments
of Chemistry and Earth, Ocean & Atmospheric Sciences, University of British Columbia, 2036 Main Mall, Vancouver BC V6T 1Z1, Canada
| | - Raymond J Andersen
- Departments
of Chemistry and Earth, Ocean & Atmospheric Sciences, University of British Columbia, 2036 Main Mall, Vancouver BC V6T 1Z1, Canada
| | - Thidarat Duangyod
- Medicinal
Plants Innovation Center of Mae Fah Luang University, Chiang Rai 57100, Thailand
- School
of Integrative Medicine, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Rawiwan Charoensup
- Medicinal
Plants Innovation Center of Mae Fah Luang University, Chiang Rai 57100, Thailand
- School
of Integrative Medicine, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Surat Laphookhieo
- Center
of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
- Medicinal
Plants Innovation Center of Mae Fah Luang University, Chiang Rai 57100, Thailand
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4
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Prenylated Flavonoids in Topical Infections and Wound Healing. Molecules 2022; 27:molecules27144491. [PMID: 35889363 PMCID: PMC9323352 DOI: 10.3390/molecules27144491] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/08/2022] [Accepted: 07/09/2022] [Indexed: 11/16/2022] Open
Abstract
The review presents prenylated flavonoids as potential therapeutic agents for the treatment of topical skin infections and wounds, as they can restore the balance in the wound microenvironment. A thorough two-stage search of scientific papers published between 2000 and 2022 was conducted, with independent assessment of results by two reviewers. The main criteria were an MIC (minimum inhibitory concentration) of up to 32 µg/mL, a microdilution/macrodilution broth method according to CLSI (Clinical and Laboratory Standards Institute) or EUCAST (European Committee on Antimicrobial Susceptibility Testing), pathogens responsible for skin infections, and additional antioxidant, anti-inflammatory, and low cytotoxic effects. A total of 127 structurally diverse flavonoids showed promising antimicrobial activity against pathogens affecting wound healing, predominantly Staphylococcus aureus strains, but only artocarpin, diplacone, isobavachalcone, licochalcone A, sophoraflavanone G, and xanthohumol showed multiple activity, including antimicrobial, antioxidant, and anti-inflammatory along with low cytotoxicity important for wound healing. Although prenylated flavonoids appear to be promising in wound therapy of humans, and also animals, their activity was measured only in vitro and in vivo. Future studies are, therefore, needed to establish rational dosing according to MIC and MBC (minimum bactericidal concentration) values, test potential toxicity to human cells, measure healing kinetics, and consider formulation in smart drug release systems and/or delivery technologies to increase their bioavailability.
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Mir MA, Mehraj U, Sheikh BA. Recent Advances in Chemotherapeutic Implications of Deguelin: A Plant-Derived Retinoid. ACTA ACUST UNITED AC 2021. [DOI: 10.2174/2210315510666200128125950] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Deguelin, a plant retinoid has emerged to be a promising therapeutic agent in the treatment
of different cancers. Recent studies demonstrate that deguelin has potential as an angiogenesis
antagonist in malignant and endothelial cells by specifically targeting HGF-c-Met and VEGFVEGFR
pathways. It is reported to have profound therapeutic effects in pancreatic cancer by inactivation
of the hedgehog (Hh) signalling pathway and suppresses the expression of matrix metalloproteinases
such as MMP-2 and MMP-9. The basic underlying mechanisms for deguelin mediated anti-
NSCLC effects were uncovered through its induction of elevated intracellular Reactive Oxygen Species
(ROS) levels and suppression of the PI3K /Akt-HK2 signalling pathway. Deguelin induces cell
apoptosis by targeting various pathways most notably regulating the expression of galectin-1 and
binding directly to anti-apoptotic Bcl-2 (B-cell lymphoma 2), Bcl-xl (B-cell lymphoma-extralarge)
and Mcl-1 (Myeloid Cell Leukemia Sequence 1) in the hydrophobic grooves thereby liberating BAD
and BAX from binding with these proteins. These results derived from the effect of Deguelin on various
cancer cell lines have further elucidated its role as a novel anti-tumorigenic agent targeting angiogenesis,
apoptosis, cell proliferation and migration for cancer chemoprevention. In this review, an
attempt has been made to highlight the potential therapeutic effects of Deguelin in destroying the
cancer cells by inhibiting various tumour promoting pathways and its uses as a therapeutic agent
alone or in combination.
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Affiliation(s)
- Manzoor A. Mir
- Department of Bioresources, School of Biological Sciences, University of Kashmir, Srinagar-190006, India
| | - Umar Mehraj
- Department of Bioresources, School of Biological Sciences, University of Kashmir, Srinagar-190006, India
| | - Bashir A. Sheikh
- Department of Bioresources, School of Biological Sciences, University of Kashmir, Srinagar-190006, India
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6
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Yan J, Zhuang Q, Li Z, Xiong Y, He M, Kang C, Zhang Q, Han L, Liang E, Liu H, Ke P, Huang X. MIL-1, a novel antitumor agent derived from natural product millepachine, acts as tubulin polymerization inhibitor for the treatment of hepatocellular carcinoma. Eur J Pharmacol 2021; 898:173975. [PMID: 33647258 DOI: 10.1016/j.ejphar.2021.173975] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 02/09/2021] [Accepted: 02/19/2021] [Indexed: 01/18/2023]
Abstract
Natural products are a large source of clinically effective antitumor drugs. Millepachine, a natural product derived from leguminous plants, was reported to display antitumor activity. In this study, the novel compound, (1H-indol-5-yl) (5-methoxy-2,2-dimethyl-2H-chromen-8-yl)methanone (MIL-1), was designed and synthesized by fusing millepachine and indole rings. MIL-1 exerted much better antitumor activity than millepachine, manifesting as a 24- to 201-fold increase in vitro cytotoxicity and a 2.4-fold increase in in vivo antitumor activity in hepatocellular cell lines-derived models. The immunofluorescence and HPLC detection revealed that MIL-1 was a potent microtubule targeting agent by interfering with the equilibrium of tubulin-microtubule dynamics and irreversibly binding to tubulin. MIL-1 displayed remarkable antitumor activity with an IC50 of 31-207 nM towards various human cancer cell lines derived from various organs and tissues, and it exerted no evidence of toxicity against normal cells. Mechanistic studies showed that MIL-1 arrested the cell cycle at G2/M phase and induced apoptosis by activating caspase-3 activity and reactive oxygen species (ROS) accumulation. Moreover, the superior antitumor effect of MIL-1 is worthy of further detailed study for the treatment of hepatocellular carcinoma (HCC).
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Affiliation(s)
- Jun Yan
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China; Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Qizhen Zhuang
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Zhenzhen Li
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Yujuan Xiong
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Min He
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Cunmin Kang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Qiaoxuan Zhang
- Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China; Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Liqiao Han
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Enyu Liang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Hongcan Liu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China
| | - Peifeng Ke
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China.
| | - Xianzhang Huang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, Guangdong, China.
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7
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Ruan QF, Pan WC, Zhao M, Tang YQ, Chen XJ, Bai JY, Jin J, Cui H, Zhao ZX. Butyrolactone and sesquiterpene derivatives as inhibitors of iNOS from the roots of Lindera glauca. Bioorg Chem 2021; 111:104871. [PMID: 33839581 DOI: 10.1016/j.bioorg.2021.104871] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 12/18/2022]
Abstract
Nine previously undescribed butyrolactone and sesquiterpene derivatives, named cyclopentanone A (1), subamolides F and G (2 and 3), secosubamolide F (4), rupestonic acids J - L (5-7), linderaguaianols A and B (8 and 9), together with six known ones 10-15 were isolated from the roots of Lindera glauca. Their structures, including their absolute configurations were elucidated by extensive spectroscopic analysis, quantum chemical calculations, and Mo2(AcO)4-induced circular dichroism. Compound 1 that possessed a unique five-membered cyclopentane skeleton with a side chain was rarely found from natural sources. The biogenetic pathway for 1-4 was postulated. Secosubamolide F (4) inhibited nitric oxide (NO) production in lipopolysaccharide (LPS)-activated RAW264.7 cells with IC50 value of 1.73 ± 0.18 μM and also significantly suppressed the production of iNOS. The binding interactions between 4 and iNOS were investigated using docking analyses.
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Affiliation(s)
- Qing-Feng Ruan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Wen-Cong Pan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Min Zhao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Yu-Qian Tang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Xiao-Jing Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Jing-Yan Bai
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Jing Jin
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Hui Cui
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
| | - Zhong-Xiang Zhao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
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8
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Zhang LB, Guo LM, Wang FL, Lü JL. Phytochemical Profile and Anti-Inflammatory Activity of the Fraction from Artemisia lavandulaefolia. Chem Biodivers 2021; 18:e2000989. [PMID: 33528898 DOI: 10.1002/cbdv.202000989] [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] [Received: 12/02/2020] [Accepted: 02/01/2021] [Indexed: 01/27/2023]
Abstract
Artemisia lavandulaefolia, a traditional herbal medicine, has been utilized as anti-inflammatory and analgesia agent in clinic. Bioassay-guided fractionation resulted in a fraction (ALDF) with anti-inflammatory effect obtained from A. lavandulaefolia. Its main constituents were analyzed and identified by UPLC-ESI-Q-TOF-MS technology. ALDF showed the strong inhibitory activity on the nitrogen oxide (NO) production in LPS-induced RAW 264.7 macrophages with an IC50 value of 1.64±0.41 μg/mL. Further results displayed that ALDF also significantly suppressed the secretion of key pro-inflammatory mediators, including tumor necrosis factor-α (TNF-α), prostaglandin E2 (PGE2 ) and interleukin-1β (IL-1β), and the increase of the inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) protein expression induced by LPS stimulation. Mechanism study indicated that ALDF was able to block NF-κB signaling pathway through inhibiting IκB and p65 phosphorylation, as well as NF-κB p65 nuclear translocation. Furthermore, in vivo results in mice revealed that treatments with ALDF evoked significant inhibition on ear edema induced by xylene and on the writhing responses induced by acetic acid. These results suggest that ALDF holds great potential in the prevention and treatment of inflammatory disorders.
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Affiliation(s)
- Lai-Bin Zhang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, P. R. China
| | - Li-Min Guo
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, P. R. China
| | - Feng-Long Wang
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, P. R. China
| | - Jie-Li Lü
- School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, P. R. China
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9
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Ma X, Zhao M, Tang MH, Xue LL, Zhang RJ, Liu L, Ni HF, Cai XY, Kuang S, Hong F, Wang L, Chen K, Tang H, Li Y, Peng AH, Yang JH, Pei HY, Ye HY, Chen LJ. Flavonoids with Inhibitory Effects on NLRP3 Inflammasome Activation from Millettia velutina. JOURNAL OF NATURAL PRODUCTS 2020; 83:2950-2959. [PMID: 32989985 DOI: 10.1021/acs.jnatprod.0c00478] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Eight new flavonoids, including two β-hydroxy/methoxychalcones, velutones A and B (1 and 2), two 1,3-diarylpropan-1-ols, velutols C and D (3 and 4), a dihydroxychalcone, velutone E (5), a chalcone, velutone F (6), a furanoflavanone, velutone G (7), and a furanoflavonol, velutone H (8), and 14 known compounds were isolated from Millettia velutina. Their structures were determined by high-resolution electrospray ionisation mass spectrometry (HR-ESIMS) and spectroscopic data analyses and time-dependent density functional theory electronic circular dichroism (TD-DFT-ECD) calculations. Among the isolated constituents, compound 6 exhibited the most potent inhibitory effect (IC50: 1.3 μM) against nigericin-induced IL-1β release in THP-1 cells. The initial mechanism of action study revealed that compound 6 suppressed NLRP3 inflammasome activation via blocking ASC oligomerization without affecting the priming step, which subsequently inhibited caspase-1 activation and IL-1β secretion. Most importantly, compound 6 exerted potent protective effects in the LPS-induced septic shock mice model by improving the survival rate of mice and suppressing serum IL-1β release. These results demonstrated that compound 6 had the potential to be developed as a broad-spectrum NLRP3 inflammasome inhibitor for the treatment of NLRP3-related disease.
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Affiliation(s)
- Xu Ma
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Min Zhao
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Ming-Hai Tang
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Lin-Lin Xue
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Rui-Jia Zhang
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Ling Liu
- The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicine, State Key Laboratory, Breeding Base of Systematic Research Development and Utilization of Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
| | - Heng-Fan Ni
- The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicine, State Key Laboratory, Breeding Base of Systematic Research Development and Utilization of Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
| | - Xiao-Ying Cai
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Shuang Kuang
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Feng Hong
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Lun Wang
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Kai Chen
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Huan Tang
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Yan Li
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China.,School of Chemical Engineering, Sichuan University, Chengdu 610041, People's Republic of China
| | - Ai-Hua Peng
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Jian-Hong Yang
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - He-Ying Pei
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Hao-Yu Ye
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China
| | - Li-Juan Chen
- Laboratory of Natural Product Drugs, State Key Laboratory of Biotherapy and Cancer Center, West China Medical School, West China Hospital, Sichuan University, Chengdu 610041, People's Republic of China.,The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicine, State Key Laboratory, Breeding Base of Systematic Research Development and Utilization of Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, People's Republic of China
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10
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Kamalian A, Sohrabi Asl M, Dolatshahi M, Afshari K, Shamshiri S, Momeni Roudsari N, Momtaz S, Rahimi R, Abdollahi M, Abdolghaffari AH. Interventions of natural and synthetic agents in inflammatory bowel disease, modulation of nitric oxide pathways. World J Gastroenterol 2020; 26:3365-3400. [PMID: 32655263 PMCID: PMC7327787 DOI: 10.3748/wjg.v26.i24.3365] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 05/09/2020] [Accepted: 06/03/2020] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel disease (IBD) refers to a group of disorders characterized by chronic inflammation of the gastrointestinal (GI) tract. The elevated levels of nitric oxide (NO) in serum and affected tissues; mainly synthesized by the inducible nitric oxide synthase (iNOS) enzyme; can exacerbate GI inflammation and is one of the major biomarkers of GI inflammation. Various natural and synthetic agents are able to ameliorate GI inflammation and decrease iNOS expression to the extent comparable with some IBD drugs. Thereby, the purpose of this study was to gather a list of natural or synthetic mediators capable of modulating IBD through the NO pathway. Electronic databases including Google Scholar and PubMed were searched from 1980 to May 2018. We found that polyphenols and particularly flavonoids are able to markedly attenuate NO production and iNOS expression through the nuclear factor κB (NF-κB) and JAK/STAT signaling pathways. Prebiotics and probiotics can also alter the GI microbiota and reduce NO expression in IBD models through a broad array of mechanisms. A number of synthetic molecules have been found to suppress NO expression either dependent on the NF-κB signaling pathway (i.e., dexamethasone, pioglitazone, tropisetron) or independent from this pathway (i.e., nicotine, prednisolone, celecoxib, β-adrenoceptor antagonists). Co-administration of natural and synthetic agents can affect the tissue level of NO and may improve IBD symptoms mainly by modulating the Toll like receptor-4 and NF-κB signaling pathways.
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Affiliation(s)
- Aida Kamalian
- Department of Medicine, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Masoud Sohrabi Asl
- Department of Medicine, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Mahsa Dolatshahi
- Department of Medicine, Tehran University of Medical Sciences, Tehran 1417614411, Iran
- Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Khashayar Afshari
- Department of Medicine, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Shiva Shamshiri
- Department of Traditional Pharmacy, School of Persian Medicine, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Nazanin Momeni Roudsari
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, Tehran 1941933111, Iran
| | - Saeideh Momtaz
- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Tehran 1417614411, Iran
- Toxicology and Diseases Group (TDG), Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), and Department of Toxicology and Pharmacology, School of Pharmacy, Tehran University of Medical Sciences, Tehran 1417614411, Iran
- Gastrointestinal Pharmacology Interest Group, Universal Scientific Education and Research Network, Tehran 1417614411, Iran
| | - Roja Rahimi
- Department of Traditional Pharmacy, School of Persian Medicine, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Mohammad Abdollahi
- Toxicology and Diseases Group (TDG), Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), and Department of Toxicology and Pharmacology, School of Pharmacy, Tehran University of Medical Sciences, Tehran 1417614411, Iran
| | - Amir Hossein Abdolghaffari
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran Medical Sciences, Islamic Azad University, Tehran 1941933111, Iran
- Medicinal Plants Research Center, Institute of Medicinal Plants, ACECR, Tehran 1417614411, Iran
- Toxicology and Diseases Group (TDG), Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), and Department of Toxicology and Pharmacology, School of Pharmacy, Tehran University of Medical Sciences, Tehran 1417614411, Iran
- Gastrointestinal Pharmacology Interest Group, Universal Scientific Education and Research Network, Tehran 1417614411, Iran
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran 1417614411, Iran
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Xu HB, Yang TH, Xie P, Tang ZS, Xu HL, Deng C, Liang YN, Zhou R, Liu SJ, Zhang Y. Cyperane-Type and Related (Nor)Sesquiterpenoids from the Root Bark of Acanthopanax gracilistylus and Their Inhibitory Effects on Nitric Oxide Production. JOURNAL OF NATURAL PRODUCTS 2020; 83:1453-1460. [PMID: 32319765 DOI: 10.1021/acs.jnatprod.9b00913] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
An enantiomeric pair of rare cyperane-type sesquiterpenoids, (+)- and (-)-gracilistones C (1a, 1b), together with a novel norsesquiterpenoid, gracilistone D (2), bearing a bicyclic lactone system were isolated from the root bark of Acanthopanax gracilistylus using LC-MS-IT-TOF analyses. The structures and absolute configurations of 1a, 1b, and 2 were elucidated by 1D and 2D NMR spectroscopy, X-ray diffraction, and ECD spectroscopic methods. Intermediate 1b suggests a possible biosynthesis process involving compound 2. The bioassay results showed that compounds 1a, 1b, and 2 exhibited significant inhibitory effects against lipopolysaccharide-induced nitric oxide production in RAW 264.7 cells, with IC50 values of 7.7 ± 0.6, 6.8 ± 1.5, and 2.6 ± 0.4 μM, respectively. Additional docking analyses provided some perspective of this activity in human inducible nitric oxide synthase.
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Affiliation(s)
- Hong-Bo Xu
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center and College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, People's Republic of China
| | - Tong-Hua Yang
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, People's Republic of China
| | - Pei Xie
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center and College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, People's Republic of China
| | - Zhi-Shu Tang
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center and College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, People's Republic of China
| | - Huai-Li Xu
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center and College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, People's Republic of China
| | - Chong Deng
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center and College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, People's Republic of China
| | - Yan-Ni Liang
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center and College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, People's Republic of China
| | - Rui Zhou
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center and College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, People's Republic of China
| | - Shi-Jun Liu
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center and College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, People's Republic of China
| | - Yu Zhang
- Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources (Cultivation), Shaanxi Innovative Drug Research Center and College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, People's Republic of China
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12
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Modulation of LPS-induced inflammation in RAW264.7 murine cells by novel isoflavonoids from Millettia pulchra. Bioorg Chem 2020; 97:103693. [PMID: 32120079 DOI: 10.1016/j.bioorg.2020.103693] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/07/2020] [Accepted: 02/21/2020] [Indexed: 02/05/2023]
Abstract
Millettia pulchra is a renowned anti-inflammatory herbal medicine in southeast provinces of China. However, the underlying anti-inflammation mechanism remained incompletely understood. Herein, four new isoflavones, pulvones A-D and eleven reported constituents were isolated from the stems of Millettia pulchra with their structures being elucidated by HRMS and NMR analysis. The anti-inflammatory activities of pulvones A and C were further evaluated due to the better inhibitory activity on nitric oxide production in LPS-stimulated RAW264.7 cells and no obvious cytotoxicity to RAW264.7 cells. Western blot showed that pulvones A significantly decreased the levels of iNOS and COX-2 proteins and pulvones C only decreased the level of iNOS protein. ELISA analysis demonstrated that pulvones A inhibited the production of both interleukin-6 (IL-6) and IL-1β while pulvones C showed better suppression effect on IL-1β production in LPS-stimulated RAW264.7 cells. Then, their potential inhibitory effects on NF-κB pathway were tested in LPS-stimulated RAW264.7 cells. Immunofluorescence and western blot assay showed that pulvones A and C reduced the nuclear translocation of NF-κB(p65) and interrupted IκB phosphorylation. The ADP-Glo™ kinase assay showed pulvones A and C could directedly inhibit the IKKβ kinase activity with the inhibitory rate of 40%, which were also verified by docking study. Collectively, these results suggested that pulvones A and C's anti-inflammatory effects were relevant to the interruption of NF-κB activation by inhibiting IKKβ kinase.
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Zhao J, Xu J, Lv J. Identification of profilin 1 as the primary target for the anti-cancer activities of Furowanin A in colorectal cancer. Pharmacol Rep 2019; 71:940-949. [PMID: 31454697 DOI: 10.1016/j.pharep.2019.05.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 04/21/2019] [Accepted: 05/13/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Furowanin A (Fur A) is a flavonoid compound isolated from medicinal plant Millettia pachycarpa Benth. This study aims to explore the effect of Fur A on Colorectal cancer (CRC) and its molecular mechanisms. METHODS Cell proliferative capacity of CRC cells was assessed by CCK-8 assay. Cell apoptosis and cell cycle distribution were detected by flow cytometry. Cell migration and invasion were detected by wound healing and Transwell assay, respectively. EMT markers, apoptosis and profilin 1(Pfn1) expression were detected by immunohistochemistry (IHC). The protein expression levels were examined by western blotting. i-TRAQ analyses were conducted to identify the differentially expressed genes in CRC cells. CRC xenograft model was also used to validate the in vivo anti-cancer activity of Fur A. RESULTS Fur A exhibited anti-prolifertive, blocked cell cycle progression and promoted apoptotic cell death in CRC cells. Fur A suppressed the migration, invasion and epithelial-to-mesenchymal transition (EMT) in vitro, and tumor growth and pulmonary metastasis in vivo, without causing obvious toxicity. iTRAQ analysis identified Pfn1 as a gene up-regulated by Fur A. In xenograft tumor tissue, the expression of Pfn1 was also elevated by Fur A treatment. In clinical CRC samples, high expression of Pfn1 was correlated with lower stage and longer survival. Knockdown of Pfn1 significantly dampened the pro-apoptotic and anti-metastatic activities of Fur A in CRC cells. Ectopic Pfn1 expression augmented the anti-neoplastic activities of Fur A. CONCLUSION Fur A exhibited anti-cancer activities in vitro and in vivo in CRC by up-regulating Pfn1.
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Affiliation(s)
- Jinxia Zhao
- The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Junhua Xu
- The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jing Lv
- The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
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14
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Wei K, Sun H, Chen X, Chen Q, Li Y, Wu H. Furowanin A Exhibits Antiproliferative and Pro-Apoptotic Activities by Targeting Sphingosine Kinase 1 in Osteosarcoma. Anat Rec (Hoboken) 2019; 302:1941-1949. [PMID: 31197942 DOI: 10.1002/ar.24200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 01/19/2019] [Accepted: 02/16/2019] [Indexed: 12/18/2022]
Abstract
Osteosarcoma (OS) is one of the most common malignant bone tumors among children and young adults. Furowanin A (Fur A), one of the active ingredients of Millettia pachycarpa Benth, has been found to exert pro-apoptotic activity in human leukemia cells. This study is designed to evaluate the efficacy of Fur A against OS. The effect of Fur A on cell viability was assessed by Cell Counting Kit-8 (CCK-8) assay. Western blotting and quantitative real-time PCR (qRT-PCR) were performed to determine the protein and mRNA level of sphingosine kinase 1 (SphK1), respectively. To validate the role of SphK1 in the pro-apoptotic activity of Fur A, overexpressing SphK1 vector and siRNA targeting SphK1 were utilized to transfect OS cells. Moreover, an OS xenograft murine model was used to analyze the therapeutic efficacy of Fur A in vivo. Fur A treatment led to a dose-dependent decrease in the number of viable cells. It also exhibited antiproliferative activity and significantly promoted apoptotic cell death in OS cell lines. Our results showed that the anticancer activity of Fur A was associated with downregulation of SphK1 and inactivation of its downstream signaling. The mediatory role of SphK1 was validated when the pro-apoptotic activity of Fur A was significantly blocked by SphK1 overexpression, while SphK1 knockdown sensitized the OS cells to Fur A. We concluded that Fur A can exhibit anti-growth and pro-apoptotic activities in vitro and in vivo in OS by downregulating SphK1. Our study highlights the possibility of utilizing Fur A as a chemotherapeutic agent in the treatment of OS. Anat Rec, 302:1941-1949, 2019. © 2019 American Association for Anatomy.
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Affiliation(s)
- Ke Wei
- Department of Orthopedics, Ningbo No. 9 Hospital, Ningbo, Zhejiang, China
| | - Haixia Sun
- Department of Orthopedics, Ningbo No. 9 Hospital, Ningbo, Zhejiang, China
| | - Xinhui Chen
- Department of Orthopedics, Ningbo No. 9 Hospital, Ningbo, Zhejiang, China
| | - Qiwang Chen
- Department of Orthopedics, Ningbo No. 9 Hospital, Ningbo, Zhejiang, China
| | - Yuehong Li
- Department of Orthopedics, Ningbo No. 9 Hospital, Ningbo, Zhejiang, China
| | - Haihao Wu
- Department of Orthopedics, Ningbo No. 2 Hospital, Ningbo, Zhejiang, China
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15
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Tu Y, Wu C, Kang Y, Li Q, Zhu C, Li Y. Bioactivity-guided identification of flavonoids with cholinesterase and β-amyloid peptide aggregation inhibitory effects from the seeds of Millettia pachycarpa. Bioorg Med Chem Lett 2019; 29:1194-1198. [DOI: 10.1016/j.bmcl.2019.03.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 02/25/2019] [Accepted: 03/19/2019] [Indexed: 10/27/2022]
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16
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Ma Z, Bao X, Gu J. Furowanin A-induced autophagy alleviates apoptosis and promotes cell cycle arrest via inactivation STAT3/Mcl-1 axis in colorectal cancer. Life Sci 2019; 218:47-57. [PMID: 30562490 DOI: 10.1016/j.lfs.2018.12.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 12/12/2018] [Accepted: 12/14/2018] [Indexed: 12/19/2022]
Abstract
Aim Furowanin A (Fur A) is a flavonoid isolated from Millettia pachycarpa Benth. Studies show its potent anti-neoplastic effects against leukemia cells. The aim of the present study was to determine the potential therapeutic effect of Fur A against colorectal cancer (CRC), and elucidate the underlying mechanism. MATERIAL AND METHODS Cell Counting Kit-8 (CCK-8) assay was used to determine cell, and TUNEL and Annexin-V/PI staining was used to detect apoptosis and the cell cycle distribution. The expression levels of specific proteins in the CRC cells were analyzed by Western blotting. A xenograft model was also established to evaluate the therapeutic effect of Fur A in vivo. KEY FINDINGS Fur A suppressed proliferation, blocked cell cycle progression, induced apoptosis and promoted autophagy in CRC cells. Interestingly, Fur A-induced autophagy functioned not only as a survival mechanism against apoptosis but also intensified the cell cycle arrest in CRC cells. In addition, Fur A mediated its effects via the inactivation of the STAT3/Mcl-1 axis. SIGNIFICANCE Fur A is a promising drug candidate for the treatment and prevention of CRC.
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Affiliation(s)
- Zhao Ma
- Gastrointestinal Surgery Department, The People's Hospital of Zhengzhou University (People's Hospital of Henan Province), Zhengzhou, China
| | - Xuebin Bao
- Gastrointestinal Surgery Department, The People's Hospital of Zhengzhou University (People's Hospital of Henan Province), Zhengzhou, China.
| | - Junbao Gu
- Gastrointestinal Surgery Department, The People's Hospital of Zhengzhou University (People's Hospital of Henan Province), Zhengzhou, China
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Tu YB, Xiao T, Gong GY, Bian YQ, Li YF. A new isoflavone with anti-inflammatory effect from the seeds of Millettia pachycarpa. Nat Prod Res 2019; 34:981-987. [DOI: 10.1080/14786419.2018.1547294] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Yan-bei Tu
- Department of Pharmaceutics & Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Tong Xiao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao, China
| | - Gui-yi Gong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao, China
| | - Ya-qi Bian
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macao, China
| | - Yan-fang Li
- Department of Pharmaceutics & Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
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Ong HG, Ling SM, Win TTM, Kang DH, Lee JH, Kim YD. Ethnomedicinal plants and traditional knowledge among three Chin indigenous groups in Natma Taung National Park (Myanmar). JOURNAL OF ETHNOPHARMACOLOGY 2018; 225:136-158. [PMID: 30026169 DOI: 10.1016/j.jep.2018.07.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/18/2018] [Accepted: 07/04/2018] [Indexed: 05/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE This research describes the ethnomedicinal plants as used by three Chin indigenous groups inhabiting areas at Natma Taung National Park (NTNP) in bio-culturally diverse Myanmar. The aim of this study was (1) to identify wild medicinal species and evaluate their local importance in local peoples' healthcare as well as in protected area conservation; and (2) to compare traditional medicinal plant knowledge among the informants. MATERIALS AND METHODS A total of 206 Müün, Ng'gah and Daai informants from 20 villages were interviewed using semi-structured questionnaires. Species use-reports were computed to determine plant local importance and the informant consensus factor. Descriptive and the inferential statistics Mann-Whitney U and Kruskal-Wallis tests were employed to evaluate and compare the informants' traditional medicinal knowledge. RESULTS A total of 75 wild ethnomedicinal taxa in 40 plant families across 16 ICPC-based disease categories were recorded. Species which recorded the highest number of use-reports appeared to play an important role not only in informants' primary healthcare and in park conservation, but also in local livelihood. CONCLUSION This study presents the diversity of ethnomedicinal plants and their local importance in Chin indigenous peoples' healthcare. This paper also recognizes the value of these plants and the local traditional knowledge for the conservation and management of NTNP.
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Affiliation(s)
- Homervergel G Ong
- Department of Life Science, Hallym University, Chuncheon City, Republic of Korea
| | - Shein Man Ling
- NTNP Office, Forest Department (MONREC/MoECAF), Chin State, Myanmar
| | | | - Dae-Hyun Kang
- Department of Life Science, Hallym University, Chuncheon City, Republic of Korea
| | - Jung-Hoon Lee
- Department of Life Science, Hallym University, Chuncheon City, Republic of Korea
| | - Young-Dong Kim
- Department of Life Science, Hallym University, Chuncheon City, Republic of Korea.
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Bao Z, Zhang P, Yao Y, Lu G, Tong Z, Yan B, Tu L, Yang G, Zhou J. Deguelin Attenuates Allergic Airway Inflammation via Inhibition of NF-κb Pathway in Mice. Int J Biol Sci 2017; 13:492-504. [PMID: 28529457 PMCID: PMC5436569 DOI: 10.7150/ijbs.17238] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 03/02/2017] [Indexed: 01/10/2023] Open
Abstract
Asthma is a chronic respiratory disease characterized by airway inflammation and remodeling, resulting in a substantial economic burden on both patients and society. Deguelin, a constituent of the Leguminosae family, exhibits anti-proliferative and anti-inflammatory activities in cancer mice models via inhibiting phosphatidylinositol 3-kinases and the NF-κB pathway. We demonstrated that deguelin effectively reduced OVA-induced inflammatory cell recruitment, decreased lung tissue inflammation and mucus production, suppressed airway hyperresponsiveness, and inhibited serum immunoglobulin and Th2 cytokine levels in a dose-dependent manner in asthmatic mice. In addition, we found that deguelin reduced inflammatory gene expressions both in vivo and in vitro, which were closely associated with activation of the NF-κB signaling pathway. Thus, we further explored the underlying mechanisms of deguelin in normal human bronchial epithelial cells (BEAS-2B). Our results suggested that deguelin inhibited NF-κB binding activity by enhancing the ability of IκBα to maintain NF-κB in an inactive form in the cytoplasm and preventing the TNF-α induced translocation of p65 to the nucleus. In conclusion, our research indicates that deguelin attenuates allergic airway inflammation via inhibition of NF-κB pathway in mice model and may act as a potential therapeutic agent for patients with allergic airway inflammation.
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Affiliation(s)
- Zhang Bao
- Department of Respiratory Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Pei Zhang
- Department of Respiratory Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yinan Yao
- Department of Respiratory Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Guohua Lu
- Department of Respiratory Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhongkai Tong
- Department of Respiratory Diseases, Ningbo No.2 hospital, Ningbo, China
| | - Bing Yan
- Department of Respiratory Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Lingfang Tu
- Department of Respiratory Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Guangdie Yang
- Department of Respiratory Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jianying Zhou
- Department of Respiratory Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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Zhang Z, Chen X, Chen H, Wang L, Liang J, Luo D, Liu Y, Yang H, Li Y, Xie J, Su Z. Anti-inflammatory activity of β-patchoulene isolated from patchouli oil in mice. Eur J Pharmacol 2016; 781:229-38. [DOI: 10.1016/j.ejphar.2016.04.028] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 04/11/2016] [Accepted: 04/13/2016] [Indexed: 12/30/2022]
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Zhang LL, Tian K, Tang ZH, Chen XJ, Bian ZX, Wang YT, Lu JJ. Phytochemistry and Pharmacology of Carthamus tinctorius L. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2016; 44:197-226. [DOI: 10.1142/s0192415x16500130] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Carthamus tinctorius L. is a multifunctional cash crop. Its flowers and seeds are extensively used in traditional herbal medicine in China, Korea, Japan, and other Asian countries, for treating various ailments such as gynecological, cardiovascular, and cerebrovascular diseases as well as blood stasis and osteoporosis. More than 100 compounds have been isolated and identified from C. tinctorius. Flavonoids and alkaloids, especially the quinochalcone c-glycoside hydroxysafflor yellow A, N-(p-Coumaroyl)serotonin, and N-feruloylserotonin, are responsible for most of the pharmacological activities of C. tinctorius. In this paper, comprehensive and up-to-date information on the phytochemistry and pharmacology of C. tinctorius is presented. This information will be helpful for further explorations of the therapeutic potential of C. tinctorius and may provide future research opportunities.
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Affiliation(s)
- Le-Le Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Ke Tian
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Zheng-Hai Tang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Xiao-Jia Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Zhao-Xiang Bian
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Yi-Tao Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Jin-Jian Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
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Su T, Cheng BCY, Fu XQ, Li T, Guo H, Cao HH, Kwan HY, Tse AKW, Yu H, Cao H, Yu ZL. Comparison of the toxicities, activities and chemical profiles of raw and processed Xanthii Fructus. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 16:24. [PMID: 26801616 PMCID: PMC4722736 DOI: 10.1186/s12906-016-0994-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 01/12/2016] [Indexed: 11/10/2022]
Abstract
BACKGROUND Although toxic, the Chinese medicinal herb Xanthii Fructus (XF) is commonly used to treat traditional Chinese medicine (TCM) symptoms that resemble cold, sinusitis and arthritis. According to TCM theory, stir-baking (a processing method) can reduce the toxicity and enhance the efficacy of XF. METHODS Cytotoxicities of raw XF and processed XF (stir-baked XF, SBXF) were determined by the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay in normal liver derived MIHA cells. Nitric oxide (NO) production and inducible nitric oxide synthase (iNOS) mRNA expression were measured by the Griess reagent and quantitative real-time PCR, respectively. The chemical profiles of XF and SBXF were compared using an established ultra-performance liquid chromatography/quadrupole-time-of-flight mass spectrometry (UPLC/Q-TOF-MS) method. RESULTS SBXF was less toxic than XF in MIHA cells. Both XF and SBXF had anti-inflammatory effects as demonstrated by their abilities to reduce nitric oxide production as well as inducible nitric oxide synthase mRNA expression in lipopolysaccharide-stimulated RAW 264.7 macrophages. Interestingly, the anti-inflammatory effects of SBXF were more potent than that of XF. By comparing the chemical profiles, we found that seven peaks were lower, while nine other peaks were higher in SBXF than in XF. Eleven compounds including carboxyatractyloside, atractyloside and chlorogenic acid corresponding to eleven individual changed peaks were tentatively identified by matching with empirical molecular formulae and mass fragments, as well as literature data. CONCLUSION Our study showed that stir-baking significantly reduced the cytotoxicity and enhanced the anti-inflammatory effects of XF; moreover, with a developed ultra-performance liquid chromatography/quadrupole-time-of-flight mass spectrometry method we differentiated XF and SBXF by their chemical profiles. Further studies are warranted to establish the relationship between the alteration of chemical profiles and the changes of medicinal properties caused by stir-baking.
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Affiliation(s)
- Tao Su
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Brian Chi-Yan Cheng
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Xiu-Qiong Fu
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Ting Li
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Hui Guo
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Hui-Hui Cao
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Hiu-Yee Kwan
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Anfernee Kai-Wing Tse
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Hua Yu
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Hui Cao
- National Engineering Research Center for Modernization of Traditional Chinese Medicine, Zhuhai, China
| | - Zhi-Ling Yu
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
- Institute of Integrated Bioinfomedicine & Translational Science, HKBU Shenzhen Research Institute and Continuing Education, Shenzhen, China.
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Wang CZ, Qi LW, Yuan CS. Cancer Chemoprevention Effects of Ginger and its Active Constituents: Potential for New Drug Discovery. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2015; 43:1351-63. [PMID: 26477795 DOI: 10.1142/s0192415x15500767] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Ginger is a commonly used spice and herbal medicine worldwide. Besides its extensive use as a condiment, ginger has been used in traditional Chinese medicine for the management of various medical conditions. In recent years, ginger has received wide attention due to its observed antiemetic and anticancer activities. This paper reviews the potential role of ginger and its active constituents in cancer chemoprevention. The phytochemistry, bioactivity, and molecular targets of ginger constituents, especially 6-shogaol, are discussed. The content of 6-shogaol is very low in fresh ginger, but significantly higher after steaming. With reported anti-cancer activities, 6-shogaol can be served as a lead compound for new drug discovery. The lead compound derivative synthesis, bioactivity evaluation, and computational docking provide a promising opportunity to identify novel anticancer compounds originating from ginger.
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Affiliation(s)
- Chong-Zhi Wang
- * Tang Center for Herbal Medicine Research and Department of Anesthesia and Critical Care, Pritzker School of Medicine, USA
| | - Lian-Wen Qi
- * Tang Center for Herbal Medicine Research and Department of Anesthesia and Critical Care, Pritzker School of Medicine, USA
- ‡ State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, JS 210009, China
| | - Chun-Su Yuan
- * Tang Center for Herbal Medicine Research and Department of Anesthesia and Critical Care, Pritzker School of Medicine, USA
- † Committee on Clinical Pharmacology and Pharmacogenomics, The University of Chicago, Chicago, IL 60637, USA
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Qi LW, Zhang Z, Zhang CF, Anderson S, Liu Q, Yuan CS, Wang CZ. Anti-Colon Cancer Effects of 6-Shogaol Through G2/M Cell Cycle Arrest by p53/p21-cdc2/cdc25A Crosstalk. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2015; 43:743-56. [PMID: 26119958 DOI: 10.1142/s0192415x15500469] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Chemopreventive agents can be identified from botanicals. Recently, there has been strong support for the potential of 6-shogaol, a natural compound from dietary ginger (Zingiber officinale), in cancer chemoprevention. However, whether 6-shogaol inhibits the growth of colorectal tumors in vivo remains unknown, and the underlying anticancer mechanisms have not been well characterized. In this work, we observed that 6-shogaol (15 mg/kg) significantly inhibited colorectal tumor growth in a xenograft mouse model. We show that 6-shogaol inhibited HCT-116 and SW-480 cell proliferation with IC50 of 7.5 and 10 μM, respectively. Growth of HCT-116 cells was arrested at the G2/M phase of the cell cycle, primarily mediated by the up-regulation of p53, the CDK inhibitor p21(waf1/cip1) and GADD45α, and by the down-regulation of cdc2 and cdc25A. Using p53(-/-) and p53(+/+) HCT-116 cells, we confirmed that p53/p21 was the main pathway that contributed to the G2/M cell cycle arrest by 6-shogaol. 6-Shogaol induced apoptosis, mainly through the mitochondrial pathway, and the bcl-2 family might act as a key regulator. Our results demonstrated that 6-shogaol induces cancer cell death by inducing G2/M cell cycle arrest and apoptosis. 6-Shogaol could be an active natural product in colon cancer chemoprevention.
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Affiliation(s)
- Lian-Wen Qi
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing JS 210009, China.,Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, Pritzker School of Medicine, University of Chicago, Chicago IL 60637, USA
| | - Zhiyu Zhang
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, Pritzker School of Medicine, University of Chicago, Chicago IL 60637, USA
| | - Chun-Feng Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing JS 210009, China
| | - Samantha Anderson
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, Pritzker School of Medicine, University of Chicago, Chicago IL 60637, USA
| | - Qun Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing JS 210009, China
| | - Chun-Su Yuan
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, Pritzker School of Medicine, University of Chicago, Chicago IL 60637, USA.,Committee on Clinical Pharmacology and Pharmacogenomics, University of Chicago, Chicago IL 60637, USA
| | - Chong-Zhi Wang
- Tang Center for Herbal Medicine Research and Department of Anesthesia & Critical Care, Pritzker School of Medicine, University of Chicago, Chicago IL 60637, USA
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Li KC, Ho YL, Huang GJ, Chang YS. Anti-Oxidative and Anti-Inflammatory Effects of Lobelia chinensis In Vitro and In Vivo. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2015; 43:269-87. [PMID: 25787301 DOI: 10.1142/s0192415x15500184] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Lobelia chinensis Lour (LcL) is a popular herb that has been widely used as folk medicine in China for the treatment of fever, lung cancer, and inflammation for hundreds of years. Recently, several studies have shown that the anti-inflammatory properties were correlated with the inhibition of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) from the NF-κB pathway. The aim of this study was to evaluate the anti-oxidative and anti-inflammatory activities of L. chinensis. Both suppressive activities on LPS-induced nitric oxide production in RAW264.7 macrophages in vitro and the acute rat lung injury model in vivo were studied. The results showed that the methanol extract of LcL and its fractions within the range of 62.5–250 μg/mL did not induce cytotoxicity (p < 0.001). The ethyl acetate fraction of LcL showed better NO inhibition activity than other fractions. On the other hand, the Lc-EA (62.5, 125, 250 mg/kg) pretreated rats showed a decrease in the pro-inflammatory cytokines (TNF-α, IL-β, IL-6) and inhibited iNOS, COX-2 expression through the NF-κB pathway. These results suggested that L. chinensis exhibited an anti-inflammatory effect through the NF-κB pathways.
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Affiliation(s)
- Kun-Cheng Li
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University Hospital, Taichung 404, Taiwan
| | - Yu-Ling Ho
- Department of Nursing, Hungkuang University, Taichung 433, Taiwan
| | - Guan-Jhong Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University Hospital, Taichung 404, Taiwan
| | - Yuan-Shiun Chang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Pharmacy, China Medical University Hospital, Taichung 404, Taiwan
- Chinese Crude Drug Pharmacy, China Medical University Hospital, Taichung 404, Taiwan
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Tang H, Wu B, Chen K, Pei H, Wu W, Ma L, Peng A, Ye H, Chen L. Separation of flavonoids from Millettia griffithii with high-performance counter-current chromatography guided by anti-inflammatory activity. J Sep Sci 2014; 38:523-9. [PMID: 25413585 DOI: 10.1002/jssc.201401068] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 11/07/2014] [Accepted: 11/09/2014] [Indexed: 02/05/2023]
Abstract
Millettia griffithii is a unique Chinese plant located in the southern part of Yunnan Province. Up to now, there is no report about its phytochemical or related bioactivity research. In our previous study, the n-hexane crude extract of Millettia griffithii revealed significant anti-inflammatory activity at 100 μg/mL, inspiring us to explore the anti-inflammatory constituents. Four fractions (I, II, III, and A) were fractionated from n-hexane crude extract by high-performance counter-current chromatography with solvent system composed of n-hexane/ethyl acetate/methanol/water (8:9:8:9, v/v) and then were investigated for the potent anti-inflammatory activity. Fraction A, with the most potent inhibitory activity was further separated to give another four fractions (IV, V, VI, and B) with solvent system composed of n-hexane/ethyl acetate/methanol/water (8:4:8:4, v/v). Compound V and fraction B exhibited remarkable anti-inflammatory activity with nitric oxide inhibitory rate of 80 and 65%, which was worth further fractionation. Then, three fractions (VII, VIII, and IX) were separated from fraction B with a solvent system composed of n-hexane/ethyl acetate/methanol/water (8:1:8:1, v/v), with compound VIII demonstrating the most potent inhibitory activity (80%). Finally, the IC50 values of compound V and VIII were tested as 38.2 and 14.9 μM. The structures were identified by electrospray ionization mass spectrometry and(1)H and (13)C NMR spectroscopy.
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Affiliation(s)
- Huan Tang
- State key laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
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