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Carrión-Estrada DA, Aguilar-Rojas A, Huerta-Yepez S, Montecillo-Aguado M, Bello M, Rojo-Domínguez A, Arechaga-Ocampo E, Briseño-Díaz P, Meraz-Ríos MA, Thompson-Bonilla MDR, Hernández-Rivas R, Vargas M. Antineoplastic effect of compounds C14 and P8 on TNBC and radioresistant TNBC cells by stabilizing the K-Ras4B G13D/PDE6δ complex. Front Oncol 2024; 14:1341766. [PMID: 38571493 PMCID: PMC10989073 DOI: 10.3389/fonc.2024.1341766] [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: 11/20/2023] [Accepted: 01/31/2024] [Indexed: 04/05/2024] Open
Abstract
Introduction Breast cancer (BC) is the leading cause of cancer-related deaths among women, with triple-negative breast cancer (TNBC) representing one of the most aggressive and treatment-resistant subtypes. In this study, we aimed to evaluate the antitumor potential of C14 and P8 molecules in both TNBC and radioresistant TNBC cells. These compounds were chosen for their ability to stabilize the complex formed by the overactivated form of K-Ras4BG13D and its membrane transporter (PDE6δ). Methods The antitumor potential of C14 and P8 was assessed using TNBC cell lines, MDA-MB-231, and the radioresistant derivative MDA-MB-231RR, both carrying the K-Ras4B> G13D mutation. We investigated the compounds' effects on K-Ras signaling pathways, cell viability, and tumor growth in vivo. Results Western blotting analysis determined the negative impact of C14 and P8 on the activation of mutant K-Ras signaling pathways in MDA-MB-231 and MDA-MB-231RR cells. Proliferation assays demonstrated their efficacy as cytotoxic agents against K-RasG13D mutant cancer cells and in inducing apoptosis. Clonogenic assays proven their ability to inhibit TNBC and radioresistant TNBC cell clonogenicity. In In vivo studies, C14 and P8 inhibited tumor growth and reduced proliferation, angiogenesis, and cell cycle progression markers. Discussion These findings suggest that C14 and P8 could serve as promising adjuvant treatments for TNBC, particularly for non-responders to standard therapies. By targeting overactivated K-Ras and its membrane transporter, these compounds offer potential therapeutic benefits against TNBC, including its radioresistant form. Further research and clinical trials are warranted to validate their efficacy and safety as novel TNBC treatments.
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Affiliation(s)
- Dayan A. Carrión-Estrada
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-I.P.N.), Mexico City, Mexico
| | - Arturo Aguilar-Rojas
- Medical Research Unit in Reproductive Medicine, Mexican Social Security Institute (IMSS), High Specialty Medical Unit in Gynecology and Obstetrics No. 4 Dr. Luis Castelazo Ayala, Mexico City, Mexico
| | - Sara Huerta-Yepez
- Research Unit in Oncological Diseases, Children’s Hospital of Mexico Federico Gómez, Mexico City, Mexico
| | - Mayra Montecillo-Aguado
- Research Unit in Oncological Diseases, Children’s Hospital of Mexico Federico Gómez, Mexico City, Mexico
| | - Martiniano Bello
- Laboratory for the Design and Development of New Drugs and Biotechnological Innovation, Higher School of Medicine, National Polytechnic Institute, Mexico City, Mexico
| | - Arturo Rojo-Domínguez
- Department of Natural Sciences, Metropolitan Autonomous University Cuajimalpa Unit, Mexico City, Mexico
| | - Elena Arechaga-Ocampo
- Department of Natural Sciences, Metropolitan Autonomous University Cuajimalpa Unit, Mexico City, Mexico
| | - Paola Briseño-Díaz
- Department of Biochemistry of the Faculty of Medicine of the National Autonomous University of Mexico (UNAM), Mexico City, Mexico
| | - Marco Antonio Meraz-Ríos
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-I.P.N.), Mexico City, Mexico
| | - María del Rocío Thompson-Bonilla
- Biomedical and Transnational Research, Genomic Medicine Laboratory, Hospital 1° de Octubre, Institute of Security and Social Services of State Workers (ISSSTE), Mexico City, Mexico
| | - Rosaura Hernández-Rivas
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-I.P.N.), Mexico City, Mexico
| | - Miguel Vargas
- Department of Molecular Biomedicine, Center for Research and Advanced Studies of the National Polytechnic Institute (CINVESTAV-I.P.N.), Mexico City, Mexico
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Luo F, Zhu B, Wu D, Xu Y, Chen T, Li Y, Hu J. Construction of Phlorotannin-Based Nanoparticles for Alleviating Acute Liver Injury. ACS APPLIED MATERIALS & INTERFACES 2023; 15:47338-47349. [PMID: 37751516 DOI: 10.1021/acsami.3c05407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
Acute liver injury (ALI) is a severe health condition with limited treatment options. Phlorotannin (PT), a natural compound extracted from seaweeds, has shown potential in improving liver function. However, its poor stability and bioavailability have limited its applications in vivo. In this study, we developed PT-based nanoparticles (NPs) through a Mannich reaction with glycine, which exhibited good biocompatibility and prolonged circulation time in vivo. Our results revealed that the PT NPs possess strong free radical scavenging ability, effectively reducing reactive oxygen species (ROS) and alleviating oxidative stress and proinflammatory responses in the H2O2-induced oxidative damage model of HepG2 cells. Furthermore, the PT NPs effectively attenuated oxidative stress and inflammation in the liver tissue of carbon tetrachloride (CCl4)-induced liver injury mice by regulating the Nrf2/HO-1 signaling pathway. In summary, our results suggested that the PT NPs could serve as a promising nano-therapeutic strategy for alleviating ALI.
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Affiliation(s)
- Fengxian Luo
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Beiwei Zhu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Di Wu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Yu Xu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Tao Chen
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Yanfei Li
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Jiangning Hu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
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3
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Deng H, Liu J, Xiao Y, Wu JL, Jiao R. Possible Mechanisms of Dark Tea in Cancer Prevention and Management: A Comprehensive Review. Nutrients 2023; 15:3903. [PMID: 37764687 PMCID: PMC10534731 DOI: 10.3390/nu15183903] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/01/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Tea is one of the most popular drinks in the world. Dark tea is a kind of post-fermented tea with unique sensory characteristics that is produced by the special fermentation of microorganisms. It contains many bioactive substances, such as tea polyphenols, theabrownin, tea polysaccharides, etc., which have been reported to be beneficial to human health. This paper reviewed the latest research on dark tea's potential in preventing and managing cancer, and the mechanisms mainly involved anti-oxidation, anti-inflammation, inhibiting cancer cell proliferation, inducing cancer cell apoptosis, inhibiting tumor metastasis, and regulating intestinal flora. The purpose of this review is to accumulate evidence on the anti-cancer effects of dark tea, the corresponding mechanisms and limitations of dark tea for cancer prevention and management, the future prospects, and demanding questions about dark tea's possible contributions as an anti-cancer adjuvant.
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Affiliation(s)
- Huilin Deng
- Department of Food Science and Engineering, Institute of Science and Technology, Jinan University, 601 Huangpu Road, Guangzhou 510632, China; (H.D.); (J.L.)
| | - Jia Liu
- Department of Food Science and Engineering, Institute of Science and Technology, Jinan University, 601 Huangpu Road, Guangzhou 510632, China; (H.D.); (J.L.)
| | - Ying Xiao
- Faculty of Medicine, Macau University of Science and Technology, Macau, China;
| | - Jian-Lin Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China;
| | - Rui Jiao
- Department of Food Science and Engineering, Institute of Science and Technology, Jinan University, 601 Huangpu Road, Guangzhou 510632, China; (H.D.); (J.L.)
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4
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Gu X, Meng Y, Jin F, Wang L, Ma J, Wang X, Zhao Y, Shi J, Li J, Zhao Y, Tu P, Zheng J. Puerin III alleviates glucose and lipid metabolism disorders in high-fat high-sucrose diet-induced hyperlipidemic and hyperglycemic ApoE−/− mice. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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5
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Lithocarpus polystachyus (Sweet Tea) water extract promotes human hepatocytes HL7702 proliferation through activation of HGF/AKT/ERK signaling pathway. CHINESE HERBAL MEDICINES 2022; 14:576-582. [DOI: 10.1016/j.chmed.2021.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 07/25/2021] [Accepted: 08/20/2021] [Indexed: 11/18/2022] Open
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6
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Pu-erh tea: A review of a healthful brew. JOURNAL OF TRADITIONAL CHINESE MEDICAL SCIENCES 2022. [DOI: 10.1016/j.jtcms.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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7
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Lovastatin suppresses bacterial therapy-induced neutrophil recruitment to the tumor by promoting neutrophil apoptosis. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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8
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Shang A, Li J, Zhou DD, Gan RY, Li HB. Molecular mechanisms underlying health benefits of tea compounds. Free Radic Biol Med 2021; 172:181-200. [PMID: 34118386 DOI: 10.1016/j.freeradbiomed.2021.06.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/06/2021] [Accepted: 06/07/2021] [Indexed: 12/22/2022]
Abstract
Tea is one of the three most widely consumed beverages in the world, not only because of its unique flavor but also due to its various health benefits. The bioactive components in tea, such as polyphenols, polysaccharides, polypeptides, pigments, and alkaloids, are the main contributors to its health functions. Based on epidemiological surveys, the consumption of tea and its compounds in daily life has positive effects on cardiovascular diseases, cancers, hepatopathy, obesity, and diabetes mellitus. In experimental studies, the antioxidant, anti-inflammatory, anti-cancer, anti-obesity, cardiovascular protective, liver protective, and hypoglycemic activities of tea and the related mechanisms of action have been widely investigated. The regulation of several classical signaling pathways, such as nuclear factor-κB (NF-κB), AMP activated protein kinase (AMPK), and wingless/integrated (Wnt) signaling, is involved. Clinical trials have also demonstrated the potential of tea products to be applied as dietary supplements and natural medicines. In this paper, we reviewed and discussed the recent literature on the health benefits of tea and its compounds, and specifically explored the molecular mechanisms involved.
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Affiliation(s)
- Ao Shang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China.
| | - Jiahui Li
- School of Science, The Hong Kong University of Science and Technology, Hong Kong 999077, China.
| | - Dan-Dan Zhou
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China.
| | - Ren-You Gan
- Research Center for Plants and Human Health, Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China.
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China.
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10
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Wu X, Liu Y, Guo J, Wang J, Li M, Tan Y, Zheng Q, Feng Y. Differentiating Pu-erh raw tea from different geographical origins by 1 H-NMR and U-HPLC/Q-TOF-MS combined with chemometrics. J Food Sci 2021; 86:779-791. [PMID: 33598925 DOI: 10.1111/1750-3841.15624] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 12/22/2020] [Accepted: 01/11/2021] [Indexed: 11/29/2022]
Abstract
Pu-erh tea is believed to be a beneficial beverage for health due to its many kinds of pharmacological effects. Nevertheless, detailed information related to differences in metabolites of Pu-erh raw tea from different geographical origins remains scarce. In this study, 43 elements were found in water-soluble components of Pu-erh raw tea by highly sensitive ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry (U-HPLC/Q-TOF-MS). The characteristic groups of 29 metabolites from nondestructive proton nuclear magnetic resonance (1 H-NMR) spectroscopy were assigned. The variables contributed largely to the origin classification, mainly including valine, threonine, chlorogenic acid, quinic acid, epiafzelechin, and gallic acid ester, were screened out by sparse partial least squares discriminant analysis (sPLS-DA) method. This study provided a feasible and rapid technique for distinguishing Pu-erh tea from different areas by 1 H-NMR combined with sPLS-DA.
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Affiliation(s)
- Xia Wu
- New Drug Research Laboratory, Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510006, China
| | - Ying Liu
- New Drug Research Laboratory, Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510006, China
| | - Jieqing Guo
- New Drug Research Laboratory, Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510006, China
| | - Juanxia Wang
- New Drug Research Laboratory, Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510006, China
| | - Meizhen Li
- New Drug Research Laboratory, Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510006, China
| | - Youzhen Tan
- New Drug Research Laboratory, Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510006, China
| | - Qifan Zheng
- Second Affiliated Hospital of Guangzhou, University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Yifan Feng
- New Drug Research Laboratory, Guangdong Pharmaceutical University, Guangzhou, Guangdong, 510006, China
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11
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Yu B, Yuan B, Li J, Kiyomi A, Kikuchi H, Hayashi H, Hu X, Okazaki M, Sugiura M, Hirano T, Fan Y, Pei X, Takagi N. JNK and Autophagy Independently Contributed to Cytotoxicity of Arsenite combined With Tetrandrine via Modulating Cell Cycle Progression in Human Breast Cancer Cells. Front Pharmacol 2020; 11:1087. [PMID: 32765280 PMCID: PMC7379898 DOI: 10.3389/fphar.2020.01087] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 07/03/2020] [Indexed: 12/12/2022] Open
Abstract
Novel therapeutic strategies for breast cancer are urgently needed due to the sustained development of drug resistance and tumor recurrence. Trivalent arsenic derivative (arsenite, AsIII) has been reported to induce cytotoxicity in breast cancer cells. We recently demonstrated that AsIII plus tetrandrine (Tetra), a Chinese plant-derived alkaloid, exerted potent antitumor activity against human breast cancer cells, however, the underlying mechanisms for their action have not been well defined. In order to provide fundamental insights for understanding the action of AsIII plus Tetra, the effects of the combined regimen on two breast cancer cell lines T47D and MDA-MB-231 were evaluated. Compared to T47D cells, MDA-MB-231 cells were much more susceptible to the synergistic cytotoxic effects of AsIII and Tetra. Besides the induction of apoptotic/necrotic cell death, S-phase arrest and autophagic cell death were also observed in MDA-MB-231 cells. Exposure of MDA-MB-231 cells to AsIII and Tetra caused the activation of MAPKs. Cytotoxicity of the combined regimen in MDA-MB-231 cell was significantly abrogated by SP600125, a potent c-Jun N-terminal kinase (JNK) inhibitor. However, similar abrogation was not caused by p38 and ERK inhibitors. The addition of either autophagy inhibitors (3-methyladenine or wortmannin) or SP600125 corrected the combined regimen-triggered S-phase arrest, whereas had little effect on the apoptosis/necrosis induction in the cells. Surprisingly, SP600125NC, a negative control for SP600125, significantly strengthened S-phase arrest and the cytotoxicity induced by the combined regimen. The addition of SP600125 did not alter autophagy induction. In conclusion, the cytotoxicity of AsIII combined with Tetra was attributed to the induction of S-phase arrest, apoptotic/necrotic and autophagic cell death. The enhanced cytotoxicity of the two drugs by SP600125NC might be explained by its capability to strengthen S-phase arrest. Our results suggested that JNK and autophagy independently contributed to the cytotoxicity via modulating cell cycle progression. The study further provides fundamental insights for the development of AsIII in combination with Tetra for patients with different types of breast cancer.
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Affiliation(s)
- Bowen Yu
- Department of Applied Biochemistry, School of Pharmacy, Tokyo University of Pharmacy & Life Sciences, Tokyo, Japan.,Galactophore Department, Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, China
| | - Bo Yuan
- Department of Applied Biochemistry, School of Pharmacy, Tokyo University of Pharmacy & Life Sciences, Tokyo, Japan.,Laboratory of Pharmacology, School of Pharmacy, Josai University, Saitama, Japan
| | - JingZhe Li
- Beijing Key Laboratory of Research of Chinese Medicine on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Anna Kiyomi
- Drug Safety and Risk Management, School of Pharmacy, Tokyo University of Pharmacy & Life Sciences, Tokyo, Japan
| | - Hidetomo Kikuchi
- Laboratory of Pharmacotherapy, Department of Clinical Dietetics and Human Nutrition, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Saitama, Japan
| | - Hideki Hayashi
- Department of Applied Biochemistry, School of Pharmacy, Tokyo University of Pharmacy & Life Sciences, Tokyo, Japan
| | - Xiaomei Hu
- Hematology Department, XiYuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Mari Okazaki
- Laboratory of Pharmacology, School of Pharmacy, Josai University, Saitama, Japan
| | - Munetoshi Sugiura
- Drug Safety and Risk Management, School of Pharmacy, Tokyo University of Pharmacy & Life Sciences, Tokyo, Japan
| | - Toshihiko Hirano
- Clinical Pharmacology, School of Pharmacy, Tokyo University of Pharmacy & Life Sciences, Tokyo, Japan
| | - Yingyi Fan
- Galactophore Department, Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, China
| | - Xiaohua Pei
- Galactophore Department, Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, China
| | - Norio Takagi
- Department of Applied Biochemistry, School of Pharmacy, Tokyo University of Pharmacy & Life Sciences, Tokyo, Japan
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12
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Luo D, Chen X, Zhu X, Liu S, Li J, Xu J, Zhao J, Ji X. Pu-Erh Tea Relaxes the Thoracic Aorta of Rats by Reducing Intracellular Calcium. Front Pharmacol 2019; 10:1430. [PMID: 31849675 PMCID: PMC6892945 DOI: 10.3389/fphar.2019.01430] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 11/08/2019] [Indexed: 01/05/2023] Open
Abstract
Previous studies suggested that pu-erh tea aqueous extract could lower blood pressure and ameliorate hypertension symptoms. However, the antihypertension mechanisms of pu-erh tea remain unclear. In this work, the direct effects of pu-erh tea on vessels and cells were investigated by detecting isometric tension and intracellular calcium ([Ca2+]i), respectively. Additionally, to identify the main active components, the aqueous extract of pu-erh was separated by organic solvents to obtain various fractions, and the effects of these fractions on arteries were assessed. The results showed that pu-erh aqueous extract vasodilated rat thoracic aortas preconstricted by phenylephrine or KCl. These vasodilation effects were not significantly affected by the removal of the endothelium or by preincubation with potassium channel blockers (tetraethylammonium, glibenclamide, aminopyridine, or barium chloride). Moreover, pu-erh aqueous extract could reduce the vessel contractibility induced by CaCl2 and phenylephrine under KCl-depolarizing or Ca2+-free buffer conditions, respectively. Furthermore, pu-erh aqueous extract attenuated the KCl-induced increase in [Ca2+]i in cultured rat aortic smooth muscle A7r5 cells. In addition, the chloroform precipitate of pu-erh aqueous extract produced the most potent vasodilation. Theabrownins (the characteristic components of pu-erh tea) accounted for 41.91 ± 1.09 % of the chloroform precipitate and vasodilated arteries in an endothelium-independent manner. In addition, the vasodilation effect of caffeine was verified. In conclusion, theabrownins and caffeine should be the two main active components in pu-erh tea. Pu-erh aqueous extract vasodilated arteries in an endothelium-independent manner, which might partly be attributed to the decrease in extracellular Ca2+ influx. Moreover, our study provided data on the potential mechanism of the hypotensive actions of pu-erh tea, which might improve our understanding of the effect of pu-erh tea on the prevention and treatment of hypertension.
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Affiliation(s)
- Dan Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xuejiao Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xu Zhu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Shuang Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jie Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jianping Xu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Jinhua Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Xu Ji
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.,Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
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13
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Huang WC, Gu PY, Fang LW, Huang YL, Lin CF, Liou CJ. Sophoraflavanone G from Sophora flavescens induces apoptosis in triple-negative breast cancer cells. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 61:152852. [PMID: 31035052 DOI: 10.1016/j.phymed.2019.152852] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/23/2019] [Accepted: 01/27/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND A compound isolated from Sophora flavescens-sophoraflavanone G (SG)-showed anti-tumor and anti-inflammatory properties. We previously demonstrated that SG promoted apoptosis in human leukemia HL-60 cells. In the present study, we investigated the effects of SG on apoptosis in human breast cancer MDA-MB-231 cells, and explored the underlying molecular mechanisms. METHODS MDA-MB-231 cells were treated with various SG concentrations, and cell viability was evaluated by MTT assay. Apoptotic signal proteins were detected by western blotting, and cell apoptosis was assessed using flow cytometry. RESULTS Our results demonstrated that SG induced nuclear condensation, DNA fragmentation, reactive oxygen species production, and increased cell apoptosis in MDA-MB-231 cells. SG also suppressed migration and invasion, likely via blockage of the MAPK pathway. In the apoptotic signaling pathway, SG increased cleaved caspase-8, caspase-3, and caspase-9. SG treatment also decreased Bcl-2 and Bcl-xL expression, increased Bax expression, and prompted release of more cytochrome c from mitochondria to the cytoplasm in MDA-MB-231 cells. CONCLUSION Overall, our findings suggest that SG might increase apoptosis, and decrease migration and invasion, in MDA-MB-231 cells through suppression of a MAPK-related pathway.
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Affiliation(s)
- Wen-Chung Huang
- Graduate Institute of Health Industry Technology, Research Center for Food and Cosmetic Safety, Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, No.261, Wenhua 1st Rd., Guishan Dist., Taoyuan City 33303, Taiwan; Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Linkou, Guishan Dist., Taoyuan City 33303, Taiwan
| | - Pei-Yu Gu
- Graduate Institute of Health Industry Technology, Research Center for Food and Cosmetic Safety, Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, No.261, Wenhua 1st Rd., Guishan Dist., Taoyuan City 33303, Taiwan
| | - Li-Wen Fang
- Department of Nutrition, I-Shou University, No.8, Yida Rd. Yanchao Dist., Kaohsiung City, Taiwan
| | - Yu-Ling Huang
- National Research Institute of Chinese Medicine, Ministry of Health and Welfare, No. 155-1, Sec. 2, Li-Nung St., Peitou, Taipei, Taiwan; Department of Cosmetic Science, Research Center for Food and Cosmetic Safety, Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, No.261, Wenhua 1st Rd., Guishan Dist., Taoyuan City 33303, Taiwan
| | - Chwan-Fwu Lin
- Department of Cosmetic Science, Research Center for Food and Cosmetic Safety, Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, No.261, Wenhua 1st Rd., Guishan Dist., Taoyuan City 33303, Taiwan; Department of Anesthesiology, Chang Gung Memorial Hospital, Linkou, Guishan Dist., Taoyuan City 33303, Taiwan.
| | - Chian-Jiun Liou
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Linkou, Guishan Dist., Taoyuan City 33303, Taiwan; Department of Nursing, Division of Basic Medical Sciences, Research Center for Chinese Herbal Medicine, and Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, No.261, Wenhua 1st Rd., Guishan Dist., Taoyuan City 33303, Taiwan.
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14
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Feng J, Yang J, Chang Y, Qiao L, Dang H, Luo K, Guo H, An Y, Ma C, Shao H, Tian J, Yuan Y, Xie L, Xing W, Cheng J. Caffeine-free hawk tea lowers cholesterol by reducing free cholesterol uptake and the production of very-low-density lipoprotein. Commun Biol 2019; 2:173. [PMID: 31098406 PMCID: PMC6506518 DOI: 10.1038/s42003-019-0396-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 03/21/2019] [Indexed: 02/08/2023] Open
Abstract
Medicinal plants show important therapeutic value in chronic disease treatment. However, due to their diverse ingredients and complex biological effects, the molecular mechanisms of medicinal plants are yet to be explored. By means of several high-throughput platforms, here we show hawk tea extract (HTE) inhibits Niemann-Pick C1-like 1 (NPC1L1)-mediated free cholesterol uptake, thereby inducing the transcription of low-density lipoprotein receptor (LDLR) downstream of the sterol response element binding protein 2 (SREBP2) pathway. Meanwhile, HTE suppresses hepatocyte nuclear factor 4α (HNF4α)-mediated transcription of microsomal triglyceride transfer protein (MTP) and apolipoprotein B (APOB), thereby decreasing the production of very-low-density lipoprotein. The catechin EGCG ((-)-epigallocatechin gallate) and the flavonoids kaempferol and quercetin are identified as the bioactive components responsible for the effects on the NPC1L1-SREBP2-LDLR axis and HNF4α-MTP/APOB axis, respectively. Overall, hawk tea works as a previously unrecognized cholesterol-lowering agent in a multi-target and multi-component manner.
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Affiliation(s)
- Juan Feng
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, 100084 Beijing, China
- Medical Systems Biology Research Center, School of Medicine, Tsinghua University, 100084 Beijing, China
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
| | - Jian Yang
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, 100700 Beijing, China
| | - Yujun Chang
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
| | - Liansheng Qiao
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, 100084 Beijing, China
- Medical Systems Biology Research Center, School of Medicine, Tsinghua University, 100084 Beijing, China
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
| | - Honglei Dang
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
| | - Kun Luo
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, 100084 Beijing, China
- Medical Systems Biology Research Center, School of Medicine, Tsinghua University, 100084 Beijing, China
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
| | - Hongyan Guo
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
| | - Yannan An
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
| | - Chengmei Ma
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
| | - Hong Shao
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
| | - Jie Tian
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
| | - Yuan Yuan
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, 100700 Beijing, China
| | - Lan Xie
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, 100084 Beijing, China
- Medical Systems Biology Research Center, School of Medicine, Tsinghua University, 100084 Beijing, China
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
| | - Wanli Xing
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, 100084 Beijing, China
- Medical Systems Biology Research Center, School of Medicine, Tsinghua University, 100084 Beijing, China
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
| | - Jing Cheng
- State Key Laboratory of Membrane Biology, School of Medicine, Tsinghua University, 100084 Beijing, China
- Medical Systems Biology Research Center, School of Medicine, Tsinghua University, 100084 Beijing, China
- National Engineering Research Center for Beijing Biochip Technology, 102206 Beijing, China
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15
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Xu XY, Zhao CN, Cao SY, Tang GY, Gan RY, Li HB. Effects and mechanisms of tea for the prevention and management of cancers: An updated review. Crit Rev Food Sci Nutr 2019; 60:1693-1705. [PMID: 30869995 DOI: 10.1080/10408398.2019.1588223] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Tea is a traditional and popular beverage worldwide, and the consumption of tea has been demonstrated to possess many health benefits, such as cardiovascular protection, anti-obesity, anti-diabetes, and anticancer. Epidemiological studies have shown that the consumption of tea is inversely associated with the risk of several cancers. In addition, experimental studies have revealed that the anticancer actions of tea are mainly attributed to tea polyphenols, such as epigallocatechin-3-gallate and theaflavins. Both in vitro and in vivo studies have demonstrated that the possible anticancer mechanisms are the inhibition on proliferation, anti-angiogenesis, induction of apoptosis, suppression on metastasis, inhibition on cancer stem cells, and modulation on gut microbiota. Its synergetic anticancer effects with drugs or other compounds could promote anticancer therapies. Furthermore, clinical trials have elucidated that intervention of tea phytochemicals is effective in the prevention of several cancers. This paper is an updated review for the prevention and management of cancers by tea based on the findings from epidemiological, experimental and clinical studies, and special attention is paid on the mechanisms of action.
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Affiliation(s)
- Xiao-Yu Xu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Cai-Ning Zhao
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Shi-Yu Cao
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Guo-Yi Tang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Ren-You Gan
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou, China
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16
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Licochalcone A Inhibits Cellular Motility by Suppressing E-cadherin and MAPK Signaling in Breast Cancer. Cells 2019; 8:cells8030218. [PMID: 30841634 PMCID: PMC6468539 DOI: 10.3390/cells8030218] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/16/2019] [Accepted: 03/01/2019] [Indexed: 02/06/2023] Open
Abstract
A compound isolated from Glycyrrhiza uralensis, licochalcone A (LA) exhibits anti-inflammatory and anti-tumor properties in various cell lines. LA has been found to promote autophagy and suppress specificity protein 1, inducing apoptosis in breast cancer cells. However, the regulation of breast cancer cell invasion and migration by LA is elusive. Thus, the present study investigated whether LA induces apoptosis and cellular motility in MDA-MB-231 breast cells, and investigated the underlying molecular mechanisms. MDA-MB-231 cells treated with LA and cell viability measured by cell counting kit-8 assay. Apoptotic signal proteins checked by flow cytometry, fluorescent staining, and Western blot. LA effectively suppressed cell migration, and modulated E-cadherin and vimentin expression by blocking MAPK and AKT signaling. LA inhibited cell proliferation and cell cycle, modulated mitochondrial membrane potential and DNA damage, and reduced oxidative stress in MDA-MB-231 cells. LA also activated cleaved-caspase 3 and 9, significantly decreased Bcl-2 expression, ultimately causing the release of cytochrome c from the mitochondria into the cytoplasm. Overall, our findings suggest that LA decreases cell proliferation and increases reactive oxygen species production for induced apoptosis, and regulates E-cadherin and vimentin by reducing MAPK and AKT signaling, resulting in suppressed MDA-MB-231 cell migration and invasion.
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17
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Ripe and Raw Pu-Erh Tea: LC-MS Profiling, Antioxidant Capacity and Enzyme Inhibition Activities of Aqueous and Hydro-Alcoholic Extracts. Molecules 2019; 24:molecules24030473. [PMID: 30699941 PMCID: PMC6384787 DOI: 10.3390/molecules24030473] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/22/2019] [Accepted: 01/24/2019] [Indexed: 11/17/2022] Open
Abstract
Herein, we reported a detailed profiling of soluble components of two fermented varieties of Chinese green tea, namely raw and ripe pu-erh. The identification and quantification of the main components was carried out by means of mass spectrometry and UV spectroscopy, after chromatographic separation. The antioxidant capacity towards different radical species, the anti-microbial and the enzyme inhibition activities of the extracts were then correlated to their main constituents. Despite a superimposable qualitative composition, a similar caffeine content, and similar enzyme inhibition and antimicrobial activities, raw pu-erh tea extract had a better antioxidant capacity owing to its higher polyphenol content. However, the activity of raw pu-erh tea seems not to justify its higher production costs and ripe variety appears to be a valid and low-cost alternative for the preparation of products with antioxidant or antimicrobial properties.
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18
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Wang T, Li X, Yang H, Wang F, Kong J, Qiu D, Li Z. Mass spectrometry-based metabolomics and chemometric analysis of Pu-erh teas of various origins. Food Chem 2018; 268:271-278. [DOI: 10.1016/j.foodchem.2018.06.041] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 06/07/2018] [Accepted: 06/08/2018] [Indexed: 12/26/2022]
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19
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Total Polyphenol Content and Antioxidant Capacity of Tea Bags: Comparison of Black, Green, Red Rooibos, Chamomile and Peppermint over Different Steep Times. BEVERAGES 2018. [DOI: 10.3390/beverages4010015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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20
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Polyphenol- and Caffeine-Rich Postfermented Pu-erh Tea Improves Diet-Induced Metabolic Syndrome by Remodeling Intestinal Homeostasis in Mice. Infect Immun 2017; 86:IAI.00601-17. [PMID: 29061705 DOI: 10.1128/iai.00601-17] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 10/06/2017] [Indexed: 02/06/2023] Open
Abstract
Postfermented Pu-erh tea (PE) protects against metabolic syndrome (MS), but little is known regarding its underlying mechanisms. Animal experiments were performed to determine whether the gut microbiota mediated the improvement in diet-induced MS by PE and its main active components (PEAC). We confirmed that PE altered the body composition and energy efficiency, attenuated metabolic endotoxemia and systemic and multiple-tissue inflammation, and improved the glucose and lipid metabolism disorder in high-fat diet (HFD)-fed mice via multiple pathways. Notably, PE promoted the lipid oxidation and browning of white adipose tissue (WAT) in HFD-fed mice. Polyphenols and caffeine (CAF) played critical roles in improving these parameters. Meanwhile, PE remodeled the disrupted intestinal homeostasis that was induced by the HFD. Many metabolic changes observed in the mice were significantly correlated with alterations in specific gut bacteria. Akkermansia muciniphila and Faecalibacterium prausnitzii were speculated to be the key gut bacterial links between the PEAC treatment and MS at the genus and species levels. Interestingly, A. muciniphila administration altered body composition and energy efficiency, promoted the browning of WAT, and improved the lipid and glucose metabolism disorder in the HFD-fed mice, whereas F. prausnitzii administration reduced the HFD-induced liver and intestinal inflammatory responses. In summary, polyphenol- and CAF-rich PE improved diet-induced MS, and this effect was associated with a remodeling of the gut microbiota.
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21
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Zhang J, Wen X, Liu N, Li YQ, Tang XR, Wang YQ, He QM, Yang XJ, Zhang PP, Ma J, Sun Y. Epigenetic mediated zinc finger protein 671 downregulation promotes cell proliferation and tumorigenicity in nasopharyngeal carcinoma by inhibiting cell cycle arrest. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2017; 36:147. [PMID: 29052525 PMCID: PMC5649082 DOI: 10.1186/s13046-017-0621-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Accepted: 10/02/2017] [Indexed: 12/19/2022]
Abstract
Background Epigenetic abnormalities play important roles in nasopharyngeal cancer (NPC), however, the epigenetic changes associated with abnormal cell proliferation remain unclear. Methods We detected epigenetic change of ZNF671 in NPC tissues and cell lines by bisulfite pyrosequencing. We evaluated zinc finger protein 671 (ZNF671) expression in NPC cell lines and clinical tissues using real-time PCR and western blotting. Then, we established NPC cell lines that stably overexpressed ZNF671 and knocked down ZNF671 expression to explore its function in NPC in vitro and in vivo. Additionally, we investigated the potential mechanism of ZNF671 by identifying the mitotic spindle and G2/M checkpoint pathways pathway downstream genes using gene set enrichment analysis, flow cytometry and western blotting. Results ZNF671 was hypermethylated in NPC tissues and cell lines. The mRNA and protein expression of ZNF671 was down-regulated in NPC tissues and cell lines and the mRNA expression could be upregulated after the demethylation agent 5-aza-2′-deoxycytidine treatment. Overexpression of ZNF671 suppressed NPC cell proliferation and colony formation in vitro; silencing ZNF671 using a siRNA had the opposite effects. Additionally, overexpression of ZNF671 reduced the tumorigenicity of NPC cells in xenograft model in vivo. The mechanism study determined that overexpressing ZNF671 induced S phase arrest in NPC cells by upregulating p21 and downregulating cyclin D1 and c-myc. Conclusions Epigenetic mediated zinc finger protein 671 downregulation promotes cell proliferation and enhances tumorigenicity by inhibiting cell cycle arrest in NPC, which may represent a novel potential therapeutic target. Electronic supplementary material The online version of this article (10.1186/s13046-017-0621-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jian Zhang
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, 651 Dongfeng Road East, Guangzhou, People's Republic of China
| | - Xin Wen
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, 651 Dongfeng Road East, Guangzhou, People's Republic of China
| | - Na Liu
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, 651 Dongfeng Road East, Guangzhou, People's Republic of China
| | - Ying-Qin Li
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, 651 Dongfeng Road East, Guangzhou, People's Republic of China
| | - Xin-Ran Tang
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, 651 Dongfeng Road East, Guangzhou, People's Republic of China
| | - Ya-Qin Wang
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, 651 Dongfeng Road East, Guangzhou, People's Republic of China
| | - Qing-Mei He
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, 651 Dongfeng Road East, Guangzhou, People's Republic of China
| | - Xiao-Jing Yang
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, 651 Dongfeng Road East, Guangzhou, People's Republic of China
| | - Pan-Pan Zhang
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, 651 Dongfeng Road East, Guangzhou, People's Republic of China
| | - Jun Ma
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, 651 Dongfeng Road East, Guangzhou, People's Republic of China.
| | - Ying Sun
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center of Cancer Medicine, 651 Dongfeng Road East, Guangzhou, People's Republic of China.
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22
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Liu T, Ding S, Yin D, Cuan X, Xie C, Xu H, Wang X, Sheng J. Pu-erh Tea Extract Ameliorates Ovariectomy-Induced Osteoporosis in Rats and Suppresses Osteoclastogenesis In Vitro. Front Pharmacol 2017; 8:324. [PMID: 28620304 PMCID: PMC5450042 DOI: 10.3389/fphar.2017.00324] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 05/15/2017] [Indexed: 01/19/2023] Open
Abstract
Background and Objective: Tea drinking is associated with positive effects on bone health and may protect against osteoporosis, especially in elderly women. Pu-erh tea has many beneficial effects on human health; however, whether Pu-erh tea has anti-osteoporotic potential remains unclear. Thus, we investigated the effects of Pu-erh tea extract (PTE) on ovariectomy-induced osteoporosis in rats and on osteoclastogenesis in vitro. Methods: Female Wistar rats were divided into six groups: the sham, model, and Xian-Ling-Gu-Bao capsule (XLGB) groups, and the low-, medium-, and high-dose PTE groups. Ovariectomized (OVX) rats were used as an animal model of osteoporosis. The animals were intragastrically administered distilled water, XLGB, or different concentrations of PTE for 13 weeks. Body weight, blood biochemical indicators, relative organ coefficients, femoral bone mineral density (BMD), bone biomechanical properties, and bone microarchitecture were examined and analyzed. Additionally, the in vitro effects of PTE on osteoclastic activities were investigated using the RAW 264.7 cell line as an osteoclast differentiation model. The effects of PTE on osteoclast differentiation and the expression of osteoclast-specific genes and proteins were determined. Results: PTE reduced OVX-induced body weight gain after 6 weeks of treatment, and the high-dose exerted a significant effect. High-dose PTE significantly ameliorated OVX-induced estradiol (E2) deficiency. PTE treatment maintained calcium and phosphorus homeostasis and improved other blood biochemical parameters to various degrees. In addition, PTE treatment improved organ coefficients of the femur, uterus, and vagina and improved femoral BMD and bone biomechanical properties. PTE treatment strikingly ameliorated bone microarchitecture. Moreover, in the in vitro studies, osteoclast differentiation using the differentiation cell model was significantly inhibited by PTE without cytotoxic effects. Additionally, PTE efficaciously suppressed the expression of key osteoclast-specific genes and proteins. Conclusion: PTE can ameliorate ovariectomy-induced osteoporosis in rats and suppress osteoclastogenesis in vitro.
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Affiliation(s)
- Titi Liu
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Shihua Ding
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Dan Yin
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Xiangdan Cuan
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Chuanqi Xie
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Huanhuan Xu
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Food Science and Technology, Yunnan Agricultural UniversityKunming, China
| | - Xuanjun Wang
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,College of Longrun Pu-erh Tea, Yunnan Agricultural UniversityKunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanKunming, China
| | - Jun Sheng
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural UniversityKunming, China.,Tea Research Center of YunnanKunming, China.,State Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanKunming, China
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