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Fan YG, Wu TY, Zhao LX, Jia RJ, Ren H, Hou WJ, Wang ZY. From zinc homeostasis to disease progression: Unveiling the neurodegenerative puzzle. Pharmacol Res 2024; 199:107039. [PMID: 38123108 DOI: 10.1016/j.phrs.2023.107039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/16/2023] [Accepted: 12/10/2023] [Indexed: 12/23/2023]
Abstract
Zinc is a crucial trace element in the human body, playing a role in various physiological processes such as oxidative stress, neurotransmission, protein synthesis, and DNA repair. The zinc transporters (ZnTs) family members are responsible for exporting intracellular zinc, while Zrt- and Irt-like proteins (ZIPs) are involved in importing extracellular zinc. These processes are essential for maintaining cellular zinc homeostasis. Imbalances in zinc metabolism have been linked to the development of neurodegenerative diseases. Disruptions in zinc levels can impact the survival and activity of neurons, thereby contributing to the progression of neurodegenerative diseases through mechanisms like cell apoptosis regulation, protein phase separation, ferroptosis, oxidative stress, and neuroinflammation. Therefore, conducting a systematic review of the regulatory network of zinc and investigating the relationship between zinc dysmetabolism and neurodegenerative diseases can enhance our understanding of the pathogenesis of these diseases. Additionally, it may offer new insights and approaches for the treatment of neurodegenerative diseases.
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Affiliation(s)
- Yong-Gang Fan
- Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Major Chronic Diseases of Nervous System of Liaoning Province, Health Sciences Institute of China Medical University, Shenyang 110122, China.
| | - Ting-Yao Wu
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou 121000, China
| | - Ling-Xiao Zhao
- Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Major Chronic Diseases of Nervous System of Liaoning Province, Health Sciences Institute of China Medical University, Shenyang 110122, China
| | - Rong-Jun Jia
- Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Major Chronic Diseases of Nervous System of Liaoning Province, Health Sciences Institute of China Medical University, Shenyang 110122, China
| | - Hang Ren
- Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Major Chronic Diseases of Nervous System of Liaoning Province, Health Sciences Institute of China Medical University, Shenyang 110122, China
| | - Wen-Jia Hou
- Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Major Chronic Diseases of Nervous System of Liaoning Province, Health Sciences Institute of China Medical University, Shenyang 110122, China
| | - Zhan-You Wang
- Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Major Chronic Diseases of Nervous System of Liaoning Province, Health Sciences Institute of China Medical University, Shenyang 110122, China.
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2
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Liang Y, Wang H, Wu B, Peng N, Yu D, Wu X, Zhong X. The emerging role of N 6-methyladenine RNA methylation in metal ion metabolism and metal-induced carcinogenesis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023:121897. [PMID: 37244530 DOI: 10.1016/j.envpol.2023.121897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 05/29/2023]
Abstract
N6-methyladenine (m6A) is the most common and abundant internal modification in eukaryotic mRNAs, which can regulate gene expression and perform important biological tasks. Metal ions participate in nucleotide biosynthesis and repair, signal transduction, energy generation, immune defense, and other important metabolic processes. However, long-term environmental and occupational exposure to metals through food, air, soil, water, and industry can result in toxicity, serious health problems, and cancer. Recent evidence indicates dynamic and reversible m6A modification modulates various metal ion metabolism, such as iron absorption, calcium uptake and transport. In turn, environmental heavy metal can alter m6A modification by directly affecting catalytic activity and expression level of methyltransferases and demethylases, or through reactive oxygen species, eventually disrupting normal biological function and leading to diseases. Therefore, m6A RNA methylation may play a bridging role in heavy metal pollution-induced carcinogenesis. This review discusses interaction among heavy metal, m6A, and metal ions metabolism, and their regulatory mechanism, focuses on the role of m6A methylation and heavy metal pollution in cancer. Finally, the role of nutritional therapy that targeting m6A methylation to prevent metal ion metabolism disorder-induced cancer is summarized.
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Affiliation(s)
- Yaxu Liang
- Joint International Research Laboratory of Animal Health & Food Safety, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - Huan Wang
- Joint International Research Laboratory of Animal Health & Food Safety, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - Bencheng Wu
- Anyou Biotechnology Group Co., LTD., Taicang, 215437, China
| | - Ning Peng
- Joint International Research Laboratory of Animal Health & Food Safety, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - Dongming Yu
- Joint International Research Laboratory of Animal Health & Food Safety, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China
| | - Xin Wu
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Xiang Zhong
- Joint International Research Laboratory of Animal Health & Food Safety, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang, Nanjing, 210095, China.
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Jastrzębska M, Giebułtowicz J, Ciechanowicz AK, Wrzesień R, Bielecki W, Bobrowska-Korczak B. Effect of Polyphenols and Zinc Co-Supplementation on the Development of Neoplasms in Rats with Breast Cancer. Foods 2023; 12:foods12020356. [PMID: 36673448 PMCID: PMC9857727 DOI: 10.3390/foods12020356] [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: 11/18/2022] [Revised: 12/29/2022] [Accepted: 01/10/2023] [Indexed: 01/13/2023] Open
Abstract
The aim of the study was to evaluate the effect of selected polyphenolic compounds: epicatechin, apigenin, and naringenin, administered separately or in combination with zinc (Zn), on the growth and development of the neoplastic process induced by 7,12-dimethylbenz[a]anthracene (DMBA) in rats. The impact of supplementation with the above-mentioned compounds on the content of modified derivatives: 1-methyladenosine, N6-methyl-2'-deoxyadenosine, O-methylguanosine, 7-methylguanine, 3-methyladenine, 1-methylguanine, 2-amino-6,8-dihydroxypurine, and 8-hydroxy-2'-deoxyguanosine in the urine of rats with mammary cancer was also assessed. Female Sprague-Dawley rats divided into 7 groups were used in the study: animals without supplementation and animals supplemented with apigenin, epicatechin, and naringenin separately or in combination with zinc. To induce mammary cancer, rats were treated with DMBA. Modified derivatives were determined by a validated high-performance liquid chromatography coupled to mass spectrometry method. Based on the obtained results, it can be said that supplementation of the animals with naringenin inhibits the development and progression of the neoplastic process in rats treated with 7,12-dimethylbenzanthracene. Neoplastic tumors were found in only 2 of 8 rats (incidence: 25%) and were considered to be at most grade 1 malignancy. The first palpable tumors in the group of animals receiving naringenin appeared two-three weeks later when compared to other groups. The combination of zinc with flavonoids (apigenin, epicatechin, and naringenin) seems to stimulate the process of carcinogenesis. The level of N6-methyl-2'-deoxyadenosine and 3-methyladenine in the urine of rats was statistically significantly higher in the groups supplemented with apigenin, epicatechin, and naringenin administered in combination with Zn than in the groups receiving only polyphenolic compounds. In conclusion, supplementation of rats with selected flavonoids administered separately or in combination with Zn has an impact on the development of neoplasms and the level of modified nucleosides in the urine of rats with breast cancer. Our results raise the question of whether simultaneous diet supplementation with more than one anti-cancer agent may reduce/stimulate the risk of carcinogenesis.
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Affiliation(s)
- Martyna Jastrzębska
- Department of Bromatology, Warsaw Medical University, S. Banacha 1 Street, 02-097 Warsaw, Poland
| | - Joanna Giebułtowicz
- Department of Drug Analysis, Warsaw Medical University, S. Banacha 1 Street, 02-097 Warsaw, Poland
| | - Andrzej K. Ciechanowicz
- Laboratory of Regenerative Medicine, Medical University of Warsaw, S. Banacha 1b Street, 02-097 Warsaw, Poland
| | - Robert Wrzesień
- Central Laboratory of Experimental Animals, Warsaw Medical University, S. Banacha 1 Street, 02-097 Warsaw, Poland
| | - Wojciech Bielecki
- Department of Pathology and Veterinary Diagnostics, Institute of Veterinary Medicine, Warsaw University of Live Sciences, Nowoursynowska 159c Street, 02-787 Warsaw, Poland
| | - Barbara Bobrowska-Korczak
- Department of Bromatology, Warsaw Medical University, S. Banacha 1 Street, 02-097 Warsaw, Poland
- Correspondence: ; Tel.: +48-225720789
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Huang C, Zhang B, Xu D. The effects of natural active substances in food on the toxicity of patulin. WORLD MYCOTOXIN J 2022. [DOI: 10.3920/wmj2022.2794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Patulin (PAT) is a mycotoxin, a secondary metabolite mainly produced by fungi of the genera Aspergillus, Byssochlamys, and Penicillium. Many studies have looked into the potential impacts of this mycotoxin due to its high risk. Researchers are currently doing a more in-depth investigation of and employing physical, chemical, and biological ways to remove PAT. However, existing technology cannot completely remove it, and the residual PAT will continue to pose a threat to human health. As a result, substances capable of reducing PAT toxicity need be discovered. According to previous studies, natural components in food could reduce the toxicity of PAT. This article will review the different types of active compounds and discus the detoxification processes, as well as give recommendations for decreasing the toxicity of PAT and future research directions.
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Affiliation(s)
- C. Huang
- College of Life Science and Engineering, Lanzhou University of Technology, No.287 Langongping Road, Lanzhou, Gansu 730050, China P.R
| | - B. Zhang
- College of Life Science and Engineering, Lanzhou University of Technology, No.287 Langongping Road, Lanzhou, Gansu 730050, China P.R
| | - D. Xu
- College of Life Science and Engineering, Lanzhou University of Technology, No.287 Langongping Road, Lanzhou, Gansu 730050, China P.R
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Alterations in Intestinal Brush Border Membrane Functionality and Bacterial Populations Following Intra-Amniotic Administration ( Gallus gallus) of Catechin and Its Derivatives. Nutrients 2022; 14:nu14193924. [PMID: 36235576 PMCID: PMC9572352 DOI: 10.3390/nu14193924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/12/2022] [Accepted: 09/20/2022] [Indexed: 11/16/2022] Open
Abstract
Catechin is a flavonoid naturally present in numerous dietary products and fruits (e.g., apples, berries, grape seeds, kiwis, green tea, red wine, etc.) and has previously been shown to be an antioxidant and beneficial for the gut microbiome. To further enhance the health benefits, bioavailability, and stability of catechin, we synthesized and characterized catechin pentaacetate and catechin pentabutanoate as two new ester derivatives of catechin. Catechin and its derivatives were assessed in vivo via intra-amniotic administration (Gallus gallus), with the following treatment groups: (1) non-injected (control); (2) deionized H2O (control); (3) Tween (0.004 mg/mL dose); (4) inulin (50 mg/mL dose); (5) Catechin (6.2 mg/mL dose); (6) Catechin pentaacetate (10 mg/mL dose); and (7) Catechin pentabutanoate (12.8 mg/mL dose). The effects on physiological markers associated with brush border membrane morphology, intestinal bacterial populations, and duodenal gene expression of key proteins were investigated. Compared to the controls, our results demonstrated a significant (p < 0.05) decrease in Clostridium genera and E. coli species density with catechin and its synthetic derivative exposure. Furthermore, catechin and its derivatives decreased iron and zinc transporter (Ferroportin and ZnT1, respectively) gene expression in the duodenum compared to the controls. In conclusion, catechin and its synthetic derivatives have the potential to improve intestinal morphology and functionality and positively modulate the microbiome.
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Ding Y, Choy LY, Chew MH, Lin Q, Johns PW. Effects of Metal Ions on Cyanocobalamin Stability in Heated Milk
Protein‐Based
Matrices. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.16089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yi Ding
- Abbott Nutrition Research and Development, 20 Biopolis Way, #09‐01/02 Centros Building 138668 Singapore Singapore
| | - Li Yin Choy
- Abbott Nutrition Research and Development, 20 Biopolis Way, #09‐01/02 Centros Building 138668 Singapore Singapore
| | - Min Hui Chew
- Abbott Nutrition Research and Development, 20 Biopolis Way, #09‐01/02 Centros Building 138668 Singapore Singapore
| | - Qi Lin
- Abbott Nutrition Research and Development, 20 Biopolis Way, #09‐01/02 Centros Building 138668 Singapore Singapore
| | - Paul W. Johns
- Abbott Nutrition Research and Development, 20 Biopolis Way, #09‐01/02 Centros Building 138668 Singapore Singapore
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Singh CK, Chhabra G, Patel A, Chang H, Ahmad N. Dietary Phytochemicals in Zinc Homeostasis: A Strategy for Prostate Cancer Management. Nutrients 2021; 13:nu13061867. [PMID: 34070833 PMCID: PMC8226978 DOI: 10.3390/nu13061867] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/21/2021] [Accepted: 05/26/2021] [Indexed: 01/30/2023] Open
Abstract
Studies have suggested an important role of the trace element zinc (Zn) in prostate biology and functions. Zn has been shown to exist in very high concentrations in the healthy prostate and is important for several prostatic functions. In prostate cancer (PCa), Zn levels are significantly decreased and inversely correlated with disease progression. Ideally, restoration of adequate Zn levels in premalignant/malignant prostate cells could abort prostate malignancy. However, studies have shown that Zn supplementation is not an efficient way to significantly increase Zn concentrations in PCa. Based on a limited number of investigations, the reason for the lower levels of Zn in PCa is believed to be the dysregulation of Zn transporters (especially ZIP and ZnT family of proteins), metallothioneins (for storing and releasing Zn), and their regulators (e.g., Zn finger transcription factor RREB1). Interestingly, the level of Zn in cells has been shown to be modulated by naturally occurring dietary phytochemicals. In this review, we discussed the effect of selected phytochemicals (quercetin, resveratrol, epigallocatechin-3-gallate and curcumin) on Zn functioning and proposes that Zn in combination with specific dietary phytochemicals may lead to enhanced Zn bioaccumulation in the prostate, and therefore, may inhibit PCa.
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Affiliation(s)
- Chandra K. Singh
- Department of Dermatology, University of Wisconsin, Madison, WI 53705, USA; (C.K.S.); (G.C.); (A.P.); (H.C.)
| | - Gagan Chhabra
- Department of Dermatology, University of Wisconsin, Madison, WI 53705, USA; (C.K.S.); (G.C.); (A.P.); (H.C.)
| | - Arth Patel
- Department of Dermatology, University of Wisconsin, Madison, WI 53705, USA; (C.K.S.); (G.C.); (A.P.); (H.C.)
| | - Hao Chang
- Department of Dermatology, University of Wisconsin, Madison, WI 53705, USA; (C.K.S.); (G.C.); (A.P.); (H.C.)
| | - Nihal Ahmad
- Department of Dermatology, University of Wisconsin, Madison, WI 53705, USA; (C.K.S.); (G.C.); (A.P.); (H.C.)
- William S. Middleton VA Medical Center, Madison, WI 53705, USA
- Correspondence: ; Tel.: +1-(608)-263-5359
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Khan S, Ullah MW, Siddique R, Liu Y, Ullah I, Xue M, Yang G, Hou H. Catechins-Modified Selenium-Doped Hydroxyapatite Nanomaterials for Improved Osteosarcoma Therapy Through Generation of Reactive Oxygen Species. Front Oncol 2019; 9:499. [PMID: 31263675 PMCID: PMC6585473 DOI: 10.3389/fonc.2019.00499] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 05/24/2019] [Indexed: 12/18/2022] Open
Abstract
Osteosarcoma is the most common bone cancer with limited therapeutic options. It can be treated by selenium-doped hydroxyapatite owing to its known antitumor potential. However, a high concentration of Se is toxic toward normal and stem cells whereas its low concentration cannot effectively remove cancer cells. Therefore, the current study was aimed to improve the anticancer activity of Se-HAp nanoparticles through catechins (CC) modification owing to their high cancer therapeutic value. The sequentially developed catechins modified Se-HAp nanocomposites (CC/Se-HAp) were characterized for various physico-chemical properties and antitumor activity. Structural analysis showed the synthesis of small rod-like single phase HAp nanoparticles (60 ± 15 nm), which effectively interacted with Se and catechins and formed agglomerated structures. TEM analysis showed the internalization and degradation of CC/Se-HAp nanomaterials within MNNG/HOS cells through a non-specific endocytosis process. Cell toxicity analysis showed that catechins modification improved the antitumor activity of Se-HAp nanocomposites by inducing apoptosis of human osteosarcoma MNNG/HOS cell lines, through generation of reactive oxygen species (ROS) which in turn activated the caspase-3 pathway, without significantly affecting the growth of human normal bone marrow stem cells (hBMSCs). qPCR and western blot analyses revealed that casp3, p53, and bax genes were significantly upregulated while cox-2 and PTK-2 were slightly downregulated as compared to control in CC/Se-HAp-treated MNNG/HOS cell lines. The current study of combining natural biomaterial (i.e., catechins) with Se and HAp, can prove to be an effective therapeutic approach for bone cancer therapy.
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Affiliation(s)
- Suliman Khan
- The Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,The Key Laboratory of Aquatic Biodiversity and Conservation of Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Muhammad Wajid Ullah
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Rabeea Siddique
- The Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Liu
- The Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, Zhengzhou, China
| | - Ismat Ullah
- State Key Laboratory of Materials Processing and Die/Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Mengzhou Xue
- The Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, Zhengzhou, China
| | - Guang Yang
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan, China
| | - Hongwei Hou
- The Key Laboratory of Aquatic Biodiversity and Conservation of Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China.,University of Chinese Academy of Sciences, Beijing, China
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Ogawa M, Kanda T, Suganami A, Nakamoto S, Win NN, Tamura Y, Nakamura M, Matsuoka S, Yokosuka O, Kato N, Ohara O, Okamoto H, Moriyama M, Shirasawa H. Antiviral activity of zinc sulfate against hepatitis A virus replication. Future Virol 2019. [DOI: 10.2217/fvl-2019-0031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Masahiro Ogawa
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Kanto, 173-8610, Japan
| | - Tatsuo Kanda
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Kanto, 173-8610, Japan
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Akiko Suganami
- Department of Bioinformatics, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Shingo Nakamoto
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
- Department of Molecular Virology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Nan Nwe Win
- Department of Molecular Virology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Yutaka Tamura
- Department of Bioinformatics, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Masato Nakamura
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Shunichi Matsuoka
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Kanto, 173-8610, Japan
| | - Osamu Yokosuka
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Naoya Kato
- Department of Gastroenterology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
| | - Osamu Ohara
- Kazusa DNA Research Institute, Kisarazu, Kanto, 292-0818, Japan
| | - Hiroaki Okamoto
- Division of Virology, Department of Infection & Immunity, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke, Kanto, 329-0498, Japan
| | - Mitsuhiko Moriyama
- Division of Gastroenterology & Hepatology, Department of Medicine, Nihon University School of Medicine, 30-1 Oyaguchi-Kamicho, Itabashi-ku, Kanto, 173-8610, Japan
| | - Hiroshi Shirasawa
- Department of Molecular Virology, Graduate School of Medicine, Chiba University, Inohana 1-8-1, Chuo-ku, Kanto, 260-8677, Japan
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Fonseca BM, Barcellos DC, Silva TMD, Borges ALS, Cavalcanti BDN, Prakki A, Oliveira HPMD, Gonçalves SEDP. Mechanical-physicochemical properties and biocompatibility of catechin-incorporated adhesive resins. J Appl Oral Sci 2019; 27:e20180111. [PMID: 30624464 PMCID: PMC6322639 DOI: 10.1590/1678-7757-2018-0111] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 09/09/2018] [Indexed: 05/30/2023] Open
Abstract
Several anti-proteolytic dentin therapies are being exhaustively studied in an attempt to reduce dentin bond degradation and improve clinical performance and longevity of adhesive restorations.
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Affiliation(s)
- Beatriz Maria Fonseca
- Universidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia, Departamento de Odontologia Restauradora, Grupo Acadêmico de Pesquisa Clínica, São José dos Campos, São Paulo, Brasil
| | - Daphne Camara Barcellos
- Universidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia, Departamento de Odontologia Restauradora, Grupo Acadêmico de Pesquisa Clínica, São José dos Campos, São Paulo, Brasil
| | - Tânia Mara da Silva
- Universidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia, Departamento de Odontologia Restauradora, Grupo Acadêmico de Pesquisa Clínica, São José dos Campos, São Paulo, Brasil
| | - Alexandre Luis Souto Borges
- Universidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia, Departamento de Odontologia Restauradora, Grupo Acadêmico de Pesquisa Clínica, São José dos Campos, São Paulo, Brasil
| | - Bruno das Neves Cavalcanti
- University of Iowa, College of Dentistry and Dental Clinics, Department of Endodontics, Iowa City, Iowa, USA
| | - Anuradha Prakki
- University of Toronto, Faculty of Dentistry, Restorative Department, Toronto, Ontario, Canada
| | | | - Sérgio Eduardo de Paiva Gonçalves
- Universidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia, Departamento de Odontologia Restauradora, Grupo Acadêmico de Pesquisa Clínica, São José dos Campos, São Paulo, Brasil
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11
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Wu N, Yang G, Tian C, Yi W, He S, Eskedar G, Xu F, Xie X, Xiang S, Du M, Bu Y, Ying C. Effects of green tea polyphenols on trace metals level of rats on food restriction and high-fat diet. J Trace Elem Med Biol 2019; 51:91-97. [PMID: 30466945 DOI: 10.1016/j.jtemb.2018.10.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 09/24/2018] [Accepted: 10/02/2018] [Indexed: 01/20/2023]
Abstract
Little evidence showed the interplay between tea and diet in the regulation of trace metal. Here, we examined the effects of green tea polyphenols (GTPs) on the level of trace elements (TEs) in rats on food restriction or high-fat diet. Thirty-six rats (Wistar, male) were randomly divided into 6 groups and fed on standard diet, food restriction and high-fat diet with or without GTPs (200 mg/kg bw/day) supplementation, respectively. Levels of vanadium (V), manganese (Mn), iron (Fe), copper (Cu), zinc (Zn), selenium (Se), molybdenum (Mo) and cobalt (Co) in feed, whole blood, femur and urine were measured by inductively coupled plasma mass spectrometry (ICP-MS). Blood glucose, total cholesterol (TC), triglycerides (TG), high and low density lipoprotein-cholesterol (LDL-C, HDL-C) in serum were determined. Decreased daily intakes of TEs were observed in rats on food restriction and high-fat diet. Decreased whole blood level of Zn, femur level of Co and increase urinary excretion of Se were observed in rats fed on high-fat diet. GTPs altered the whole blood level of several TEs in rats on food restriction (V, Zn, Co) or high-fat diet (V, Se), respectively, but not in rats fed on standard diet. The level of several TEs in femur and the daily urinary excretion of V and Mo were altered by GTPs in rats on all of the three diets. In addition, rats fed on high-fat diet developed dyslipidemia, which was ameliorated by GTPs. The data indicated that diet status played a role in the effects of GTPs on TEs and lipid metabolism, and trace elements may play a role in the modulation of lipid metabolic disturbances by high-fat diet and GTPs.
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Affiliation(s)
- Nannan Wu
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Guangyu Yang
- Clinical Medical, Wuhan Railway Vocational College of Technology, Wuhan, 430030, China.
| | - Chong Tian
- School of Nursing, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Weijie Yi
- Department of Nutrition and Food Hygiene, School of Public Health and Management, Binzhou Medical University, Yantai, 264003, China
| | - Shuiqing He
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Getachew Eskedar
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Fangyi Xu
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Xiao Xie
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Siyun Xiang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China
| | - Miying Du
- Department of Hotel Management, Tourism University, Guilin, 541000, China
| | - Yongjun Bu
- Department of Nutrition and Food Hygiene, Xinxiang Medical University, Xinxiang, 453000, China
| | - Chenjiang Ying
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan, 430030, China.
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Gartmann L, Wex T, Grüngreiff K, Reinhold D, Kalinski T, Malfertheiner P, Schütte K. Expression of zinc transporters ZIP4, ZIP14 and ZnT9 in hepatic carcinogenesis-An immunohistochemical study. J Trace Elem Med Biol 2018; 49:35-42. [PMID: 29895370 DOI: 10.1016/j.jtemb.2018.04.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 04/25/2018] [Accepted: 04/26/2018] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Dysregulation of both, systemic zinc levels and tissue-specific zinc transporters, is reported in chronic inflammatory and malignant liver disease (hepatocellular carcinoma, HCC). Aim of this study is to assess the expression level of three zinc transporters in liver tissue and HCC: ZIP4, ZIP14 and ZnT9. METHODS The study is based on tissue samples obtained from 138 patients with histologically proven HCC. Tissue specimens from tumor (n = 138) and extra-lesional specimens (n = 72) were assessed immunohistochemically for the expression of the three zinc transporters. Expression levels were semi-quantitatively scored and statistically analyzed with respect to the etiology of HCC (alcohol, AFLD; non-alcoholic fatty liver disease, NAFLD; virus-hepatitis, VH) and survival. RESULTS Overall, expression levels of ZIP4, ZIP14 and ZnT9 were significantly higher in HCC tissue than in adjacent extra-lesional liver tissue. Expression levels in tumor tissue and survival time revealed a negative correlation for ZIP4 and ZIP14, and in part for ZnT9 (nuclear staining) (p < 0.05), whereas cytoplasmic staining of ZnT9 did not correlate with survival. Furthermore, the expression level of ZIP4 in extra-lesional tissue showed inverse correlation with survival time. CONCLUSION The upregulation of zinc transporters in hepatic carcinogenesis and its negative correlation with survival time implies a regulatory/functional link between zinc-homeostasis and development/progression of HCC that deserves to be further explored.
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Affiliation(s)
- Laura Gartmann
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Leipziger Str. 44, D-39120 Magdeburg, Germany; Medical Laboratory for Clinical Chemistry, Microbiology and Infectious Diseases "Prof. Schenk/Dr. Ansorge & Colleagues", Department Molecular Genetics, Schwiesaustr. 11, D-39124, Magdeburg, Germany
| | - Thomas Wex
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Leipziger Str. 44, D-39120 Magdeburg, Germany; Medical Laboratory for Clinical Chemistry, Microbiology and Infectious Diseases "Prof. Schenk/Dr. Ansorge & Colleagues", Department Molecular Genetics, Schwiesaustr. 11, D-39124, Magdeburg, Germany
| | - Kurt Grüngreiff
- Clinic of Gastroenterology, City Hospital Magdeburg, Klinikum Magdeburg GmbH, Birkenallee 34, D-39130, Magdeburg, Germany
| | - Dirk Reinhold
- Institute of Molecular and Clinical Immunology, Otto-von-Guericke University, Leipziger Str. 44, D-39120 Magdeburg, Germany
| | - Thomas Kalinski
- Institute of Pathology, Otto-von-Guericke University, Leipziger Str. 44, D-39120, Magdeburg, Germany
| | - Peter Malfertheiner
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Leipziger Str. 44, D-39120 Magdeburg, Germany
| | - Kerstin Schütte
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University, Leipziger Str. 44, D-39120 Magdeburg, Germany; Department of Internal Medicine and Gastroenterology, Niels-Stensen-Kliniken, Marienhospital Osnabrück GmbH, Bischofsstraße 1, D-49074, Osnabrück, Germany.
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Kobayashi K, Ishizaki Y, Kojo S, Kikuzaki H. Strong Inhibition of Secretory Sphingomyelinase by Catechins, Particularly by (-)-Epicatechin 3-O-Gallate and (-)-3'-O-Methylepigallocatechin 3-O-Gallate. J Nutr Sci Vitaminol (Tokyo) 2017; 62:123-9. [PMID: 27264097 DOI: 10.3177/jnsv.62.123] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Sphingomyelinases (SMases) are key enzymes involved in many diseases which are caused by oxidative stress, such as atherosclerosis, diabetes mellitus, nonalcoholic fatty liver disease, and Alzheimer's disease. SMases hydrolyze sphingomyelin to generate ceramide, a well-known pro-apoptotic lipid. SMases are classified into five types based on pH optimum, subcellular localization, and cation dependence. Previously, we demonstrated that elevation of secretory sphingomyelinase (sSMase) activity increased the plasma ceramide concentration under oxidative stress induced by diabetes and atherosclerosis in murine models. These results suggest that sSMase inhibitors can prevent the progress of these diseases. The present study demonstrated that sSMase activity was activated by oxidation and inhibited by reduction. Furthermore, we examined whether catechins inhibited the sSMase activity in a physiological plasma concentration. Among catechins, (-)-epicatechin 3-O-gallate (ECg) exhibited strong inhibitory effect on sSMase (IC50=25.7 μM). This effect was attenuated by methylation at the 3″- or 4″-position. On the other hand, (-)-epigallocatechin 3-O-gallate (EGCg) and (-)-catechin 3-O-gallate (Cg) exhibited weaker inhibitory activity than ECg, and (-)-epicatechin and (-)-epigallocatechin did not affect sSMase activity. Additionally, one synthetic catechin, (-)-3'-O-methylepigallocatechin 3-O-gallate (EGCg-3'-O-Me), showed the strongest inhibitory effect (IC50=1.7 μM) on sSMase. This phenomenon was not observed for (-)-4'-O-methylepigallocatechin 3-O-gallate. These results suggest that the reduction potential, the presence of the galloyl residue at the C-3 position, and the steric requirement to interact with sSMase protein are important for effective inhibition of sSMase.
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Affiliation(s)
- Keiko Kobayashi
- Department of Food Science and Nutrition, Nara Women's University
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14
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Mitigation Effect of Proanthocyanidin on Secondary Heart Injury in Rats Caused by Mechanical Trauma. Sci Rep 2017; 7:44623. [PMID: 28294148 PMCID: PMC5353670 DOI: 10.1038/srep44623] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 02/09/2017] [Indexed: 01/02/2023] Open
Abstract
Multiple organ dysfunctional syndrome secondary to mechanical trauma (MT) has attracted considerable research attention. The heart is one of the most important organs of the body, and secondary cardiac insufficiency caused by MT seriously affects the quality of life. This study aims to investigate whether proanthocyanidin can alleviate myocardial injury and improve heart function in the process of MT leading to secondary cardiac insufficiency. Noble-Collip drum wasused to prepare MT model in rats. And myocardial apoptosis index was calculated after TUNEL staining. Ventricular intubation was employed to detect heart function. Changes in myocardial ultrastructure were observed using an electron microscope. ELISA was used to detect the content of TNF-α and reactive oxygen species generated from monocytes and cardiomyocytes. The changes in Ca2+ concentration in cardiomyocyte were observed by confocal microscope. Compared with trauma group, the administration group had a decreased apoptosis index of cardiomyocytes, and increased ±dp/dtmax. Meanwhile, proanthocyanidin can inhibit monocytes' TNF-α production, and reduce plasma TNF-α concentration. Moreover, proanthocyanidin can attenuate the excessive oxidative stress reaction of cardiomyocyte, and inhibit calcium overload in cardiomyocytes. In conclusion, proanthocyanidin can effectively ease myocardial damage and improve cardiac function, through anti-inflammatory and antioxidant effects in secondary cardiac insufficiency caused by MT.
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15
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Clergeaud G, Dabbagh-Bazarbachi H, Ortiz M, Fernández-Larrea JB, O’Sullivan CK. A simple liposome assay for the screening of zinc ionophore activity of polyphenols. Food Chem 2016; 197:916-23. [DOI: 10.1016/j.foodchem.2015.11.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 11/11/2015] [Accepted: 11/12/2015] [Indexed: 12/20/2022]
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16
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Singh CK, Siddiqui IA, El-Abd S, Mukhtar H, Ahmad N. Combination chemoprevention with grape antioxidants. Mol Nutr Food Res 2016; 60:1406-15. [PMID: 26829056 DOI: 10.1002/mnfr.201500945] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 01/14/2016] [Accepted: 01/17/2016] [Indexed: 12/29/2022]
Abstract
Antioxidant ingredients present in grape have been extensively investigated for their cancer chemopreventive effects. However, much of the work has been done on individual ingredients, especially focusing on resveratrol and quercetin. Phytochemically, whole grape represents a combination of numerous phytonutrients. Limited research has been done on the possible synergistic/additive/antagonistic interactions among the grape constituents. Among these phytochemical constituents of grapes, resveratrol, quercetin, kaempferol, catechin, epicatechin, and anthocyanins (cyanidin and malvidin) constitute more than 70% of the grape polyphenols. Therefore, these have been relatively well studied for their chemopreventive effects against a variety of cancers. While a wealth of information is available individually on cancer chemopreventive/anti-proliferative effects of resveratrol and quercetin, limited information is available regarding the other major constituents of grape. Studies have also suggested that multiple grape antioxidants, when used in combination, alone or with other agents/drugs show synergistic or additive anti-proliferative response. Based on strong rationale emanating from published studies, it seems probable that a combination of multiple grape ingredients alone or together with other agents could impart 'additive synergism' against cancer.
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Affiliation(s)
- Chandra K Singh
- Department of Dermatology, University of Wisconsin, Madison, WI, USA
| | - Imtiaz A Siddiqui
- Department of Dermatology, University of Wisconsin, Madison, WI, USA
| | - Sabah El-Abd
- Department of Dermatology, University of Wisconsin, Madison, WI, USA
| | - Hasan Mukhtar
- Department of Dermatology, University of Wisconsin, Madison, WI, USA
| | - Nihal Ahmad
- Department of Dermatology, University of Wisconsin, Madison, WI, USA
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Chen Z, Yu T, Zhou B, Wei J, Fang Y, Lu J, Guo L, Chen W, Liu ZP, Luo J. Mg(II)-Catechin nanoparticles delivering siRNA targeting EIF5A2 inhibit bladder cancer cell growth in vitro and in vivo. Biomaterials 2016; 81:125-134. [PMID: 26731576 DOI: 10.1016/j.biomaterials.2015.11.022] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 11/09/2015] [Accepted: 11/11/2015] [Indexed: 01/20/2023]
Abstract
Emerging evidence indicates that combination of two or more therapeutic strategies can synergistically enhance antitumor activity in cancer therapy. Here, we established a green method of generating nanocomposite particles that can be fabricated using catechin, a natural anti-cancer compound from green tea, and Mg(2+) in an easy one-step approach at room temperature. We show that Mg(II)-Catechin nanocomposite particles (Mg(II)-Cat NPs) have good biocompatibility and high cellular uptake also can load and effectively deliver small interfering RNA (siRNA) into cells in vitro and to tumor site in vivo. Mg(II)-Cat NPs by themselves had tumor-suppression effects. When complexed with siRNA that targets oncogene eukaryotic translation initiation factor 5A2 (EIF5A2), Mg(II)-Cat/siEIF5A2 complex had further enhanced anti-tumor activity. Mechanistically, we show that Mg(II)-Cat/siEIF5A2 inhibits oncogenic PI3K/Akt signal pathway. More importantly, Mg(II)-Cat/siEIF5A2 had tumor suppression effect in a clinically-relevant rat in-situ bladder cancer model. Our studies demonstrated that combination of Mg(II)-Cat NPs and siRNA is a promising therapeutic modality of combining chemotherapy with gene therapy in order to afford higher therapeutic efficacy and provided a proof of principle for such modality in a pre-clinical setting.
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Affiliation(s)
- Zhenhua Chen
- Department of Urology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Ting Yu
- Department of Pharmacy, Hainan General Hospital, Haikou, 570311, China
| | - Bangfen Zhou
- Department of Urology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jinhuan Wei
- Department of Urology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Yong Fang
- Department of Urology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Jun Lu
- Department of Urology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
| | - Ling Guo
- Department of Nephrology, QiLu Hospital of Shandong University, Jinan, 250012, China
| | - Wei Chen
- Department of Urology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.
| | - Zhi-Ping Liu
- Departments of Internal Medicine and Molecular Biology, UT Southwestern Medical Center, Dallas, TX, 75390, USA.
| | - Junhang Luo
- Department of Urology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China.
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18
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Liu CM, Ma JQ, Liu SS, Feng ZJ, Wang AM. Puerarin protects mouse liver against nickel-induced oxidative stress and inflammation associated with the TLR4/p38/CREB pathway. Chem Biol Interact 2016; 243:29-34. [DOI: 10.1016/j.cbi.2015.11.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 11/03/2015] [Accepted: 11/13/2015] [Indexed: 11/29/2022]
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19
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Attenuation of progressive hearing loss in DBA/2J mice by reagents that affect epigenetic modifications is associated with up-regulation of the zinc importer Zip4. PLoS One 2015; 10:e0124301. [PMID: 25875282 PMCID: PMC4397065 DOI: 10.1371/journal.pone.0124301] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 03/12/2015] [Indexed: 01/21/2023] Open
Abstract
Various factors that are important for proper hearing have been identified, including serum levels of zinc. Here we investigated whether epigenetic regulatory pathways, which can be modified by environmental factors, could modulate hearing. RT-PCR detected expression of genes encoding DNA methyltransferase and histone deacetylase (Hdac) in the postnatal as well as adult mouse auditory epithelium. DBA/2J mice, which are a model for progressive hearing loss, were injected subcutaneously with one or a combination of the following reagents: <smallcaps>L</smallcaps>-methionine as a methyl donor, valproic acid as a pan-Hdac inhibitor, and folic acid and vitamin B12 as putative factors involved in age-related hearing loss. The mice were treated from ages 4 to 12 weeks (N ≥ 5), and auditory brainstem response (ABR) thresholds were measured at 8, 16, and 32 kHz. Treatment of the mice with a combination of <smallcaps>L</smallcaps>-methionine and valproic acid (M+V) significantly reduced the increase in the ABR threshold at 32 kHz. Treatment with any of these reagents individually produced no such effect. Microarray analyses detected 299 gene probes that were significantly up- or down-regulated in the cochleae of mice treated with M+V compared with the control vehicle-treated mice. Quantitative RT-PCR confirmed significant up-regulation of a zinc importer gene, Zip4, in the cochleae of mice treated with M+V. Immunohistochemistry demonstrated an intense Zip4 signal in cochlear tissues such as the lateral wall, organ of Corti, and spiral ganglion. Finally, mice treated with the Zip4 inducer (–)-epigallocatechin-3-O-gallate showed a significant reduction in the increase of the ABR threshold at 32 kHz and up-regulation of Zip4 expression in the cochlea. This study suggests that epigenetic regulatory pathways can modify auditory function and that zinc intake in the cochlea via Zip4 mediates maintenance of mammalian hearing.
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20
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Fidaleo M, Fracassi A, Zuorro A, Lavecchia R, Moreno S, Sartori C. Cocoa protective effects against abnormal fat storage and oxidative stress induced by a high-fat diet involve PPARα signalling activation. Food Funct 2014; 5:2931-9. [DOI: 10.1039/c4fo00616j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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21
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Dabbagh-Bazarbachi H, Clergeaud G, Quesada IM, Ortiz M, O'Sullivan CK, Fernández-Larrea JB. Zinc ionophore activity of quercetin and epigallocatechin-gallate: from Hepa 1-6 cells to a liposome model. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:8085-8093. [PMID: 25050823 DOI: 10.1021/jf5014633] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Labile zinc, a tiny fraction of total intracellular zinc that is loosely bound to proteins and easily interchangeable, modulates the activity of numerous signaling and metabolic pathways. Dietary plant polyphenols such as the flavonoids quercetin (QCT) and epigallocatechin-gallate act as antioxidants and as signaling molecules. Remarkably, the activities of numerous enzymes that are targeted by polyphenols are dependent on zinc. We have previously shown that these polyphenols chelate zinc cations and hypothesized that these flavonoids might be also acting as zinc ionophores, transporting zinc cations through the plasma membrane. To prove this hypothesis, herein, we have demonstrated the capacity of QCT and epigallocatechin-gallate to rapidly increase labile zinc in mouse hepatocarcinoma Hepa 1-6 cells as well as, for the first time, in liposomes. In order to confirm that the polyphenols transport zinc cations across the plasma membrane independently of plasma membrane zinc transporters, QCT, epigallocatechin-gallate, or clioquinol (CQ), alone and combined with zinc, were added to unilamellar dipalmitoylphosphocholine/cholesterol liposomes loaded with membrane-impermeant FluoZin-3. Only the combinations of the chelators with zinc triggered a rapid increase of FluoZin-3 fluorescence within the liposomes, thus demonstrating the ionophore action of QCT, epigallocatechin-gallate, and CQ on lipid membrane systems. The ionophore activity of dietary polyphenols may underlay the raising of labile zinc levels triggered in cells by polyphenols and thus many of their biological actions.
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Affiliation(s)
- Husam Dabbagh-Bazarbachi
- Nutrigenomics Research Group, Department of Biochemistry and Biotechnology, and ‡Nanobiotechnology & Bioanalysis Group, Department of Chemical Engineering, Universitat Rovira i Virgili , 43007 Tarragona, Spain
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22
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Charradi K, Elkahoui S, Karkouch I, Limam F, Ben Hassine F, El May MV, Aouani E. Protective effect of grape seed and skin extract against high-fat diet-induced liver steatosis and zinc depletion in rat. Dig Dis Sci 2014; 59:1768-78. [PMID: 24705696 DOI: 10.1007/s10620-014-3128-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 03/20/2014] [Indexed: 12/18/2022]
Abstract
BACKGROUND Obesity is a tremendous public health problem, characterized by ectopic deposition of fat into non-adipose tissues as liver generating an oxidative stress that could lead to steato-hepatitis. Grape seed and skin extract (GSSE) is a complex mixture of polyphenolics exhibiting robust antioxidative properties. AIM We hypothesize that GSSE could protect the liver from fat-induced lipotoxicity and have a beneficial effect on liver function. METHODS Hepatoprotective effect of GSSE was measured by using an experimental model of fat-induced rat liver steatosis. Male rats were fed a standard diet or a high-fat diet (HFD) during 6 weeks and treated or not with 500 mg/kg bw GSSE. Lipid deposition into the liver was assessed by triglyceride, cholesterol and phospholipid measurements. Fat-induced lipoperoxidation, carbonylation, depletion of glutathione and of antioxidant enzyme activities were used as oxidative stress markers with a special emphasis on transition metal distribution. RESULTS HFD induced liver hypertrophy and inflammation as assessed by high liver transaminases. HFD also induced an oxidative stress characterized by increased lipid and protein oxidation, a drop in glutathione and antioxidant enzyme activities as glutathione peroxidase and superoxide dismutase and a drastic depletion in liver zinc. Importantly, GSSE prevented all the deleterious effects of HFD treatment. CONCLUSIONS Data suggest that GSSE could be used as a safe preventive agent against fat-induced liver lipotoxicity which could also have potential applications in other non-alcoholic liver diseases.
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Affiliation(s)
- Kamel Charradi
- Laboratoire des Substances Bioactives (LSBA), Centre de Biotechnologie de Borj Cedria, BP-901, 2050, Hammam-Lif, Tunisia,
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23
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Vidal CM, Aguiar TR, Phansalkar R, McAlpine JB, Napolitano JG, Chen SN, Araújo LS, Pauli GF, Bedran-Russo A. Galloyl moieties enhance the dentin biomodification potential of plant-derived catechins. Acta Biomater 2014; 10:3288-94. [PMID: 24721612 DOI: 10.1016/j.actbio.2014.03.036] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 03/19/2014] [Accepted: 03/31/2014] [Indexed: 12/22/2022]
Abstract
Proanthocyanidin-rich plant-derived agents have been shown to enhance dentin biomechanical properties and resistance to collagenase degradation. This study systematically investigated the interaction of chemically well-defined monomeric catechins with dentin extracellular matrix components by evaluating dentin mechanical properties as well as activities of matrix metalloproteinases (MMPs) and cysteine-cathepsins (CTs). Demineralized dentin beams (n=15) were incubated for 1h with 0.65% (+)-catechin (C), (-)-catechin gallate (CG), (-)-gallocatechin gallate (GCG), (-)-epicatechin (EC), (-)-epicatechin gallate (ECG), (-)-epigallocatechin (EGC) and (-)-epigallocatechin-3-gallate (EGCG). The modulus of elasticity (E) and the fold increase in E were determined by comparing specimens at baseline and after treatment. Biodegradation rates were assessed by differences in percentage of dry mass before and after incubation with bacterial collagenase. The inhibition of MMP-9 and CT-B by 0.65, 0.065 and 0.0065% of each catechin was determined using fluorimetric proteolytic assay kits. All monomeric catechins led to a significant increase in E. EGCG showed the highest fold increase in E, followed by ECG, CG and GCG. EGCG, ECG, GCG and CG significantly lowered biodegradation rates and inhibited both MMP-9 and CT-B at a concentration of 0.65%. Overall, the 3-O-galloylated monomeric catechins are clearly more potent than their non-galloylated analogues in improving dentin mechanical properties, stabilizing collagen against proteolytic degradation, and inhibiting the activity of MMPs and CTs. The results indicate that galloylation is a key pharmacophore in the monomeric and likely also in the oligomeric proanthocyanidins that exhibit high cross-linking potential for dentin extracellular matrix.
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Singh CK, Pitschmann A, Ahmad N. Resveratrol-zinc combination for prostate cancer management. Cell Cycle 2014; 13:1867-74. [PMID: 24866157 DOI: 10.4161/cc.29334] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Zinc, an essential trace element, plays a critical role in cell signaling, and defect(s) in zinc homeostasis may contribute to adverse physiological and pathological conditions, including cancer. Zinc is present in healthy prostate at a very high concentration, where it is required for important prostatic functions. However, zinc levels are significantly diminished in cancerous tissue, and intracellular zinc level is inversely correlated with prostate cancer progression. During neoplastic transformation, zinc-accumulating, citrate-producing normal prostate cells are metabolically transformed to citrate oxidizing cells that lose the ability to accumulate zinc. Interestingly, zinc has been shown to function as chemopreventive agent against prostate cancer, albeit at high doses, which may lead to many adverse effects. Therefore, novel means to enhance bioaccumulation of sufficient zinc in prostate cells via increasing zinc transport could be useful against prostate cancer. On the basis of available evidence, we present a possibility that the grape antioxidant resveratrol, when given with zinc, may lead to retuning the zinc homeostasis in prostate, thereby abolishing or reversing malignancy. If experimentally verified in in vivo model(s) of prostate cancer, such as transgenic mouse models, this may lead to novel means toward management of prostate cancer and other conditions with compromised zinc homeostasis.
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Affiliation(s)
- Chandra K Singh
- Department of Dermatology; University of Wisconsin; Madison, WI USA
| | - Anna Pitschmann
- Department of Dermatology; University of Wisconsin; Madison, WI USA
| | - Nihal Ahmad
- Department of Dermatology; University of Wisconsin; Madison, WI USA
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25
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Protective effects of grape seed-derived procyanidin extract against carrageenan-induced abacterial prostatitis in rats. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.01.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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High-fat diet induced an oxidative stress in white adipose tissue and disturbed plasma transition metals in rat: prevention by grape seed and skin extract. J Physiol Sci 2013; 63:445-55. [DOI: 10.1007/s12576-013-0283-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 07/22/2013] [Indexed: 12/22/2022]
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27
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Zhuang X, Zhang W, Pang X, Wu W, Qu W. Combined effect of total flavonoids from seed residues of Hippophae rhamnoides L. and zinc on advanced glycation end products-induced endothelial cell dysfunction. Food Chem 2012. [DOI: 10.1016/j.foodchem.2012.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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28
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Chuang SM, Wang HF, Hsiao CC, Cherng SH. Zinc ion enhances GABA tea-mediated oxidative DNA damage. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:1586-1594. [PMID: 22264004 DOI: 10.1021/jf2044263] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
GABA tea is a tea product that contains a high level of γ-aminobutyric acid (GABA). Previous study has demonstrated a synergistic effect of GABA tea and copper ions on DNA breakage. This study further explored whether zinc (Zn), a nonredox metal, modulated DNA cleavage induced by GABA tea extract. In a cell-free system, Zn(2+) significantly enhanced GABA tea extract and (-)-epigallocatechin-3-gallate (EGCG)- or H(2)O(2)-induced DNA damage at 24 h of incubation. Additionally, low dosages of GABA tea extract (1-10 μg/mL) possessed pro-oxidant activity to increase H(2)O(2)/Zn(2+)-induced DNA cleavage in a dose-dependent profile. By use of various reactive oxygen scavengers, it was observed that glutathione, catalase, and potassium iodide effectively inhibited DNA degradation caused by the GABA tea extract/H(2)O(2)/Zn(2+) system. Moreover, the data showed that the GABA tea extract itself (0.5-5 mg/mL) could induce DNA cleavage in a long-term exposure (48 h). EGCG, but not the GABA tea extract, enhanced H(2)O(2)-induced DNA cleavage. In contrast, GABA decreased H(2)O(2)- and EGCG-induced DNA cleavage, suggesting that GABA might contribute the major effect on the antioxidant activity of GABA tea extract. Furthermore, a comet assay revealed that GABA tea extract (0.25 mg/mL) and GABA had antioxidant activity on H(2)O(2)-induced DNA breakage in human peripheral lymphocytes. Taken together, these findings indicate that GABA tea has the potential of both pro-oxidant and antioxidant. It is proposed that a balance between EGCG-induced pro-oxidation and GABA-mediated antioxidation may occur in a complex mixture of GABA tea extract.
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Affiliation(s)
- Show-Mei Chuang
- Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan, Republic of China
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Zhuang X, Pang X, Zhang W, Wu W, Zhao J, Yang H, Qu W. Effects of zinc and manganese on advanced glycation end products (AGEs) formation and AGEs-mediated endothelial cell dysfunction. Life Sci 2012; 90:131-9. [DOI: 10.1016/j.lfs.2011.10.025] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 09/09/2011] [Accepted: 10/17/2011] [Indexed: 01/01/2023]
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Duce JA, Bush AI, Adlard PA. Role of amyloid-β–metal interactions in Alzheimer’s disease. FUTURE NEUROLOGY 2011. [DOI: 10.2217/fnl.11.43] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
There is an evolving field of metallobiology that has begun to describe a key role for bioavailable metals (particularly copper, zinc and iron) in the pathogenesis of Alzheimer’s disease (AD). In particular, there is an apparent failure in metal ion homeostasis, potentially caused by a pathological mislocalization of the metals in the brain, which appears to be an obligatory step in both the precipitation and potentiation of the disease. A number of both preclinical and clinical studies have also provided a strong burden of proof that normalizing metal ion homeostasis represents a valid therapeutic target, and may indeed represent the first disease-modifying strategy for AD. The role of metals in the pathophysiology of AD will be discussed in this article.
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Affiliation(s)
- James A Duce
- The Mental Health Research Institute, 155 Oak Street, Parkville, Victoria 3052, Australia
- Center for Neuroscience, The University of Melbourne, Victoria 3010, Australia
| | - Ashley I Bush
- The Mental Health Research Institute, 155 Oak Street, Parkville, Victoria 3052, Australia
- Department of Pathology, The University of Melbourne, Victoria 3010, Australia
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Song P, Zhang R, Wang X, He P, Tan L, Ma X. Dietary grape-seed procyanidins decreased postweaning diarrhea by modulating intestinal permeability and suppressing oxidative stress in rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:6227-6232. [PMID: 21534629 DOI: 10.1021/jf200120y] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This study was conducted to evaluate the effects of grape-seed procyanidins in controlling weaning diarrhea using a rat model. Weaned rats were fed either the basal diet or basal diet supplemented with either 250 mg/kg grape-seed procyanidins or 2000 mg/kg ZnO. Treated rats had better performance with a reduced incidence of diarrhea (P < 0.05). Both ZnO and grape-seed procyanidins significantly reduced urinary lactulose to mannitol ratios (P < 0.05) and enhanced the mRNA and protein expression of the intestinal mucosal tight junction proteins Ocln/ZO-1 (P < 0.05). Grape-seed procyanidins increased the activities of SOD, GSH-Px, and GSH while decreasing the level of MDA in the intestinal mucosa (P < 0.05). Furthermore, an in vitro investigation revealed that supplementation with grape-seed procyanidins in IEC-6 intestinal epithelial cells significantly enhanced the expression of Ocln/ZO-1 under H(2)O(2)-induced oxidative stress. Collectively, these results indicate that grape-seed procyanidins have the potential to prevent weaning diarrhea by reducing intestinal permeability and improving antioxidant indices.
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Affiliation(s)
- Peixia Song
- State Key Lab of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing 100193, People's Republic of China
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Kim EY, Pai TK, Han O. Effect of bioactive dietary polyphenols on zinc transport across the intestinal Caco-2 cell monolayers. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:3606-12. [PMID: 21410257 PMCID: PMC3087602 DOI: 10.1021/jf104260j] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Polyphenolic compounds are known to possess many beneficial health effects, including the antioxidative activities of scavenging reactive oxygen species and chelating metals, such as iron and zinc. Tea and red wine are thought to be important sources of these compounds. However, some polyphenolic compounds can also reduce the absorption of iron, and possibly other trace metals, when included in a diet. There is very little information on the effect of dietary polyphenolic compounds on the status of trace elements other than iron. The effects of epigallocatechin-3-gallate (EGCG), green tea extract (GT), and grape seed extract (GSE) on the absorption of (65)Zn were examined and compared with their effects on (55)Fe absorption in human intestinal Caco-2 cells grown on microporous membrane inserts. The levels of EGCG, GT, and GSE used in this study were within physiological ranges and did not affect the integrity of the Caco-2 cell monolayers. GSE significantly (P < 0.05) reduced zinc transport across the cell monolayer, and the decreased zinc transport was associated with a reduction in apical zinc uptake. However, EGCG and GT did not alter zinc absorption. In contrast, the polyphenolic compounds in EGCG, GT, and GSE almost completely blocked transepithelial iron transport across the cell monolayer. The effect of GSE on zinc absorption was very different from that on iron absorption. Whereas GSE decreased zinc absorption by reducing apical zinc uptake, the polyphenolic compounds inhibited iron absorption by enhancing apical iron uptake. GSE inhibited zinc absorption similarly to that observed for phytate. Phytate significantly (P < 0.05) decreased transepithelial zinc transport by reducing apical zinc uptake. The inhibition of zinc absorption may be due to the presence of procyanidins in GSE, which bind zinc with high affinity and block the transport of zinc across the apical membrane of enterocytes. Further research on the absorption of zinc as zinc-polyphenol complexes and free zinc should provide further insight into the process of dietary zinc absorption in the presence of GSE and other bioactive dietary polyphenols. The present study suggests that some individuals should consider their zinc status if they regularly consume procyanidin-containing foods in their diet. However, further studies, especially in vivo studies, are needed to confirm these results.
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Affiliation(s)
- Eun-Young Kim
- Department of Nutritional Sciences, Pennsylvania State University, University Park, Pennsylvania 16802, United States
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Wang HC, Brumaghim JL. Polyphenol Compounds as Antioxidants for Disease Prevention: Reactive Oxygen Species Scavenging, Enzyme Regulation, and Metal Chelation Mechanisms in E. coliand Human Cells. ACS SYMPOSIUM SERIES 2011. [DOI: 10.1021/bk-2011-1083.ch005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Hsiao C. Wang
- Chemistry Department, Clemson University, Clemson, South Carolina 29634-0973
| | - Julia L. Brumaghim
- Chemistry Department, Clemson University, Clemson, South Carolina 29634-0973
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Baiges I, Palmfeldt J, Bladé C, Gregersen N, Arola L. Lipogenesis is decreased by grape seed proanthocyanidins according to liver proteomics of rats fed a high fat diet. Mol Cell Proteomics 2010; 9:1499-513. [PMID: 20332082 DOI: 10.1074/mcp.m000055-mcp201] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Bioactive proanthocyanidins have been reported to have several beneficial effects on health in relation to metabolic syndrome, type 2 diabetes, and cardiovascular disease. We studied the effect of grape seed proanthocyanidin extract (GSPE) in rats fed a high fat diet (HFD). This is the first study of the effects of flavonoids on the liver proteome of rats suffering from metabolic syndrome. Three groups of rats were fed over a period of 13 weeks either a chow diet (control), an HFD, or a high fat diet supplemented for the last 10 days with GSPE (HFD + GSPE). The liver proteome was fractionated, using a Triton X-114-based two-phase separation, into soluble and membrane protein fractions so that total proteome coverage was considerably improved. The data from isobaric tag for relative and absolute quantitation (iTRAQ)-based nano-LC-MS/MS analysis revealed 90 proteins with a significant (p < 0.05) minimal expression difference of 20% due to metabolic syndrome (HFD versus control) and 75 proteins due to GSPE treatment (HFD + GSPE versus HFD). The same animals have previously been studied (Quesada, H., del Bas, J. M., Pajuelo, D., Díaz, S., Fernandez-Larrea, J., Pinent, M., Arola, L., Salvadó, M. J., and Bladé, C. (2009) Grape seed proanthocyanidins correct dyslipidemia associated with a high-fat diet in rats and repress genes controlling lipogenesis and VLDL assembling in liver. Int. J. Obes. 33, 1007-1012), and GSPE was shown to correct dyslipidemia observed in HFD-fed rats probably through the repression of hepatic lipogenesis. Our data corroborate those findings with an extensive list of proteins describing the induction of hepatic glycogenesis, glycolysis, and fatty acid and triglyceride synthesis in HFD, whereas the opposite pattern was observed to a large extent in GSPE-treated animals. GSPE was shown to have a wider effect than previously thought, and putative targets of GSPE involved in the reversal of the symptoms of metabolic syndrome were revealed. Some of these novel candidate proteins such as GFPT1, CD36, PLAA (phospholipase A(2)-activating protein), METTL7B, SLC30A1, several G signaling proteins, and the sulfide-metabolizing ETHE1 and SQRDL (sulfide-quinone reductase-like) might be considered as drug targets for the treatment of metabolic syndrome.
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Affiliation(s)
- Isabel Baiges
- Biochemistry and Biotechnology Department, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
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