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Cecerska-Heryć E, Wiśniewska Z, Serwin N, Polikowska A, Goszka M, Engwert W, Michałów J, Pękała M, Budkowska M, Michalczyk A, Dołęgowska B. Can Compounds of Natural Origin Be Important in Chemoprevention? Anticancer Properties of Quercetin, Resveratrol, and Curcumin-A Comprehensive Review. Int J Mol Sci 2024; 25:4505. [PMID: 38674092 PMCID: PMC11050349 DOI: 10.3390/ijms25084505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
Malignant tumors are the second most common cause of death worldwide. More attention is being paid to the link between the body's impaired oxidoreductive balance and cancer incidence. Much attention is being paid to polyphenols derived from plants, as one of their properties is an antioxidant character: the ability to eliminate reactive oxygen and nitrogen species, chelate specific metal ions, modulate signaling pathways affecting inflammation, and raise the level and activity of antioxidant enzymes while lowering those with oxidative effects. The following three compounds, resveratrol, quercetin, and curcumin, are polyphenols modulating multiple molecular targets, or increasing pro-apoptotic protein expression levels and decreasing anti-apoptotic protein expression levels. Experiments conducted in vitro and in vivo on animals and humans suggest using them as chemopreventive agents based on antioxidant properties. The advantage of these natural polyphenols is low toxicity and weak adverse effects at higher doses. However, the compounds discussed are characterized by low bioavailability and solubility, which may make achieving the blood concentrations needed for the desired effect challenging. The solution may lie in derivatives of naturally occurring polyphenols subjected to structural modifications that enhance their beneficial effects or work on implementing new ways of delivering antioxidants that improve their solubility and bioavailability.
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Affiliation(s)
- Elżbieta Cecerska-Heryć
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (Z.W.); (N.S.); (A.P.); (M.G.); (W.E.); (J.M.); (M.P.); (B.D.)
| | - Zofia Wiśniewska
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (Z.W.); (N.S.); (A.P.); (M.G.); (W.E.); (J.M.); (M.P.); (B.D.)
| | - Natalia Serwin
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (Z.W.); (N.S.); (A.P.); (M.G.); (W.E.); (J.M.); (M.P.); (B.D.)
| | - Aleksandra Polikowska
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (Z.W.); (N.S.); (A.P.); (M.G.); (W.E.); (J.M.); (M.P.); (B.D.)
| | - Małgorzata Goszka
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (Z.W.); (N.S.); (A.P.); (M.G.); (W.E.); (J.M.); (M.P.); (B.D.)
| | - Weronika Engwert
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (Z.W.); (N.S.); (A.P.); (M.G.); (W.E.); (J.M.); (M.P.); (B.D.)
| | - Jaśmina Michałów
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (Z.W.); (N.S.); (A.P.); (M.G.); (W.E.); (J.M.); (M.P.); (B.D.)
| | - Maja Pękała
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (Z.W.); (N.S.); (A.P.); (M.G.); (W.E.); (J.M.); (M.P.); (B.D.)
| | - Marta Budkowska
- Department of Medical Analytics, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland;
| | - Anna Michalczyk
- Department of Psychiatry, Pomeranian Medical University of Szczecin, Broniewskiego 26, 71-460 Szczecin, Poland;
| | - Barbara Dołęgowska
- Department of Laboratory Medicine, Pomeranian Medical University of Szczecin, Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland; (Z.W.); (N.S.); (A.P.); (M.G.); (W.E.); (J.M.); (M.P.); (B.D.)
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2
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Bi M, Qin Y, Zhao L, Zhang X. Edaravone promotes viability of random skin flaps via activating PI3K/Akt/mTOR signalling pathway-mediated enhancement of autophagy. Int Wound J 2023; 20:3088-3104. [PMID: 37042039 PMCID: PMC10502271 DOI: 10.1111/iwj.14184] [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: 01/31/2023] [Revised: 03/23/2023] [Accepted: 03/27/2023] [Indexed: 04/13/2023] Open
Abstract
Random skin flap transplantation is a commonly used technique. However, ischemia and ischemia-reperfusion injury always impair its therapeutic effectiveness through acclerating oxidative stress, apoptosis and suppressing angiogenesis. To survive, cells rely on mediating autophagy, DNA repair, immunoregulation to resist these cellular injuries. Thus, mediating autophagy may affect the survival of random skin flaps. The edaravone (EDA), a oxygen radicals scavenger, also possesses autophagy mediator potential, we investigated the effects of EDA on skin flap survival and its autophagy-related mechanisms. In vivo, mice were administered EDA or saline intraperitoneally for 7 days postoperatively. We found that EDA ameliorated the viability of random skin flaps, promoted autophagy and angiogenesis, attenuated apoptosis and oxidative stress. In vitro, mouse umbilical vascular endothelial cells (MUVECs) were administered EDA or 3-methyladenine (3-MA, an autophagy inhibitor) or rapacymin (Rapa, an autophagy activator) at the beginning of oxygen glucose deprivation (OGD). We found that EDA promoted cell viability, activated autophagy, enhanced angiogenesis, alleviated apoptosis and oxidative stress. On one hand, 3-MA reversed the effects of EDA on cell viability, oxidative stress and apoptosis via inhibiting autophagy. On the other hand, Rapa had the similar effects of EDA. Furthermore, EDA-induced autophagy was mediated through downregulating PI3K/Akt/mTOR signalling pathway. The findings showed that EDA ameliorated viability of random skin flaps by promoting angiogenesis, suppressing oxidative stress and apoptosis, which may be mediated by autophagic activation through downregulating PI3K/AKT/mTOR signalling pathway.
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Affiliation(s)
- Minglei Bi
- Department of Plastic SurgeryLanzhou University Second HospitalLanzhouChina
| | - Yonghong Qin
- Department of Plastic SurgeryLanzhou University Second HospitalLanzhouChina
| | | | - Xuanfen Zhang
- Department of Plastic SurgeryLanzhou University Second HospitalLanzhouChina
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3
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Divyajanani S, Harithpriya K, Ganesan K, Ramkumar KM. Dietary Polyphenols Remodel DNA Methylation Patterns of NRF2 in Chronic Disease. Nutrients 2023; 15:3347. [PMID: 37571283 PMCID: PMC10420661 DOI: 10.3390/nu15153347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/17/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
The nuclear factor erythroid 2-related factor 2 (NRF2) is a transcription factor crucial in regulating cellular homeostasis and apoptosis. The NRF2 gene has been implicated in various biological activities, including antioxidant, anti-inflammatory, and anticancer properties. NRF2 can be regulated genetically and epigenetically at the transcriptional, post-transcriptional, and translational levels. Although DNA methylation is one of the critical biological processes vital for gene expression, sometimes, anomalous methylation patterns result in the dysregulation of genes and consequent diseases and disorders. Several studies have reported promoter hypermethylation downregulated NRF2 expression and its downstream targets. In contrast to the unalterable nature of genetic patterns, epigenetic changes can be reversed, opening up new possibilities in developing therapies for various metabolic disorders and diseases. This review discusses the current state of the NRF2-mediated antioxidative and chemopreventive activities of several natural phytochemicals, including sulforaphane, resveratrol, curcumin, luteolin, corosolic acid, apigenin, and most other compounds that have been found to activate NRF2. This epigenetic reversal of hypermethylated NRF2 states provides new opportunities for research into dietary phytochemistry that affects the human epigenome and the possibility for cutting-edge approaches to target NRF2-mediated signaling to prevent chronic disorders.
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Affiliation(s)
- Srinivasaragavan Divyajanani
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603210, Tamil Nadu, India; (S.D.); (K.H.)
| | - Kannan Harithpriya
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603210, Tamil Nadu, India; (S.D.); (K.H.)
| | - Kumar Ganesan
- School of Chinese Medicine, LKS Faculty of Medicine, University of Hong Kong, 3 Sassoon Road, Hong Kong, China;
| | - Kunka Mohanram Ramkumar
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603210, Tamil Nadu, India; (S.D.); (K.H.)
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4
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Chemoprevention of lotus leaf ethanolic extract through epigenetic activation of the NRF2-mediated pathway in murine skin JB6 P+ cell neoplastic transformation. J Tradit Complement Med 2023. [DOI: 10.1016/j.jtcme.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
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5
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Tian Y, Liu H, Wang M, Wang R, Yi G, Zhang M, Chen R. Role of STAT3 and NRF2 in Tumors: Potential Targets for Antitumor Therapy. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248768. [PMID: 36557902 PMCID: PMC9781355 DOI: 10.3390/molecules27248768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/02/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022]
Abstract
Signal transducer and activator of transcription 3 (STAT3) and nuclear factor erythroid-derived 2-like 2 (NRF2, also known as NFE2L2), are two of the most complicated transcription regulators, which participate in a variety of physiological processes. Numerous studies have shown that they are overactivated in multiple types of tumors. Interestingly, STAT3 and NRF2 can also interact with each other to regulate tumor progression. Hence, these two important transcription factors are considered key targets for developing a new class of antitumor drugs. This review summarizes the pivotal roles of the two transcription regulators and their interactions in the tumor microenvironment to identify potential antitumor drug targets and, ultimately, improve patients' health and survival.
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Affiliation(s)
- Yanjun Tian
- Medical Laboratory of Jining Medical University, Jining Medical University, Jining 272067, China
| | - Haiqing Liu
- Department of Physiology, School of Basic Medical Sciences (Institute of Basic Medical Sciences), Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250024, China
| | - Mengwei Wang
- School of Stomatology, Jining Medical University, Jining 272067, China
| | - Ruihao Wang
- School of Mental Health, Jining Medical University, Jining 272067, China
| | - Guandong Yi
- School of Nursing, Jining Medical University, Jining 272067, China
| | - Meng Zhang
- Medical Laboratory of Jining Medical University, Jining Medical University, Jining 272067, China
| | - Ruijiao Chen
- Medical Laboratory of Jining Medical University, Jining Medical University, Jining 272067, China
- Correspondence: ; Tel.: +86-537-361-6216
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6
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Wang XQ, Liu RP, Wang J, Luo D, Li YH, Jiang H, Xu YN, Kim NH. Wedelolactone facilitates the early development of parthenogenetically activated porcine embryos by reducing oxidative stress and inhibiting autophagy. PeerJ 2022; 10:e13766. [PMID: 35910774 PMCID: PMC9332323 DOI: 10.7717/peerj.13766] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 06/30/2022] [Indexed: 01/17/2023] Open
Abstract
Wedelolactone (WDL) is a coumaryl ether compound extracted from the traditional Chinese medicinal plant, Eclipta prostrata L. It is a natural polyphenol that exhibits a variety of pharmacological activities, such as anti-inflammatory, anti-free radical, and antioxidant activities in the bone, brain, and ovary. However, its effect on embryonic development remains unknown. The present study explored the influence of WDL supplementation of porcine oocytes culture in vitro on embryonic development and the underlying mechanisms and its effect on the levels of Kelch-like ECH-associated protein 1/nuclear factor-erythroid 2-related factor 2/antioxidant response element (Keap1/Nrf2/ARE). The results showed that WDL (2.5 nM) significantly increased the blastocyst formation rate, mitochondrial activity, and proliferation ability while reducing the reactive oxygen species accumulation, apoptosis, and autophagy. These findings suggested that WDL can enhance the growth and development of early porcine embryos to alleviate oxidative stress and autophagy through regulating NRF2 and microtubule-associated protein 1 light chain 3 (MAP1LC3) gene expression levels.
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Affiliation(s)
- Xin-Qin Wang
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Rong-Ping Liu
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Jing Wang
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Dan Luo
- Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, Jilin, China
| | - Ying-Hua Li
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Hao Jiang
- Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, Jilin, China
| | - Yong-Nan Xu
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Nam-Hyung Kim
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
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7
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Zhou X, Yuan W, Xiong X, Zhang Z, Liu J, Zheng Y, Wang J, Liu J. HO-1 in Bone Biology: Potential Therapeutic Strategies for Osteoporosis. Front Cell Dev Biol 2021; 9:791585. [PMID: 34917622 PMCID: PMC8669958 DOI: 10.3389/fcell.2021.791585] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 11/12/2021] [Indexed: 02/05/2023] Open
Abstract
Osteoporosis is a prevalent bone disorder characterized by bone mass reduction and deterioration of bone microarchitecture leading to bone fragility and fracture risk. In recent decades, knowledge regarding the etiological mechanisms emphasizes that inflammation, oxidative stress and senescence of bone cells contribute to the development of osteoporosis. Studies have demonstrated that heme oxygenase 1 (HO-1), an inducible enzyme catalyzing heme degradation, exhibits anti-inflammatory, anti-oxidative stress and anti-apoptosis properties. Emerging evidence has revealed that HO-1 is critical in the maintenance of bone homeostasis, making HO-1 a potential target for osteoporosis treatment. In this Review, we aim to provide an introduction to current knowledge of HO-1 biology and its regulation, focusing specifically on its roles in bone homeostasis and osteoporosis. We also examine the potential of HO-1-based pharmacological therapeutics for osteoporosis and issues faced during clinical translation.
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Affiliation(s)
- Xueman Zhou
- State Key Laboratory of Oral Diseases and National Clinical Research Center for West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Lab for Aging Research, State Key Laboratory of Biotherapy and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Wenxiu Yuan
- State Key Laboratory of Oral Diseases and National Clinical Research Center for West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Lab for Aging Research, State Key Laboratory of Biotherapy and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Xin Xiong
- State Key Laboratory of Oral Diseases and National Clinical Research Center for West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zhenzhen Zhang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Lab for Aging Research, State Key Laboratory of Biotherapy and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Jiaqi Liu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Lab for Aging Research, State Key Laboratory of Biotherapy and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Yingcheng Zheng
- State Key Laboratory of Oral Diseases and National Clinical Research Center for West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Lab for Aging Research, State Key Laboratory of Biotherapy and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Jun Wang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jin Liu
- Lab for Aging Research, State Key Laboratory of Biotherapy and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
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8
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Lin Y, Wu S. Vegetable soybean (Glycine max (L.) Merr.) leaf extracts: Functional components and antioxidant and anti-inflammatory activities. J Food Sci 2021; 86:2468-2480. [PMID: 34028011 DOI: 10.1111/1750-3841.15765] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/06/2021] [Accepted: 04/13/2021] [Indexed: 12/01/2022]
Abstract
To investigate ways to extract greater dietary value from the leaves of the vegetable soybean (Glycine max (L.) Merr.) cultivar 'Kaohsiung No. 9'. Our results indicate that phenolic content and flavonoid content are highest in extracts prepared with 70% methanol and 70% ethanol. The 70% ethanol extracts also had the highest quercetin (135 ± 1.62 µg/g) and kaempferol (450 ± 1.35 µg/g) contents. These results show that flavonoids are a dominant class of compounds in these vegetable soybean leaf extracts and serve as their main source of antioxidants. At an extract concentration of 5 mg/ml, the 70% methanol extracts achieved good antioxidant effects, with a DPPH radical scavenging rate of 80%, and a reducing power of 88%. In assays of anti-inflammatory capacity using lipopolysaccharide-stimulated RAW 264.7 macrophages. The 70% methanol extracts displayed the most significant inhibition of nitric oxide (NO) synthesis, achieving up to 86% inhibition. As a similar trend was observed in expression levels of inducible nitric oxide synthase (iNOS), we deduced that vegetable soybean leaves may regulate NO synthesis through inhibiting iNOS. We also observed a significant decrease in cyclooxygenase (COX)-2 gene expression. Analysis of proinflammatory cytokine synthesis revealed that the 70% methanol and 70% ethanol extracts significantly reduced TNF-α, IL-6, and IL-1β synthesis, and increased the intracellular reduced glutathione/oxidized glutathione (GSH/GSSG) ratio from 8 to 12.8. These results indicate that vegetable soybean leaves possess antioxidant activities and exert inhibitory effects on inflammatory mediators, suggesting their potential for use as dietary supplements.
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Affiliation(s)
- Yushiuan Lin
- Department of Horticulture and Landscape Architecture, National Taiwan University, Taipei, Taiwan
| | - Szjie Wu
- Department of Horticulture and Landscape Architecture, National Taiwan University, Taipei, Taiwan
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9
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Sedtananun S, Promthep K. The potential of Mangifera indica Linn. and Musa acuminata extracts to attenuate 4-hydroxyestradiol (4-OHE 2 )-induced DNA oxidative damage in MCF-10A cells by upregulating detoxifying and antioxidant enzymes. J Food Biochem 2021; 45:e13754. [PMID: 33969512 DOI: 10.1111/jfbc.13754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/24/2021] [Accepted: 04/20/2021] [Indexed: 11/26/2022]
Abstract
Nowadays, there have been attempts to use phytochemicals in fruits to reduce the risk of suffering a given sickness. In this work, we studied the potential effects of mango (cultivar "Nam Dok Mai") and banana (cultivar "Khai") to attenuate DNA oxidative damage in MCF-10A cells induced by 4-hydroxyestradiol (4-OHE2 ). The effects of mango extract (MNE) and banana extract (BKE) were comparable with three carotenoid compounds, β-carotene, lycopene, and lutein. The oxidative-induced DNA damage was evaluated by 8-hydroxy-2-deoxyguanosine (8-OHdG) reduction. 4-OHE2 -induced DNA oxidative damage in MCF-10A cells showed a decrease in 8-OHdG formation when treated with MNE and BKE. Both fruit extracts also enabled the regaining production of Phase II detoxifying (GSTs and NQO1) and antioxidant (SOD, GPx, and CAT) enzymes during 4-OHE2 -induced DNA oxidative damage in the MCF-10A cells when compared with the untreated control. These results indicate that MNE and BKE can exert potential mitigating effects against 4-OHE2 -induced DNA oxidative damage in MCF-10A cells by enhancing the activities of detoxifying and antioxidant enzyme. PRACTICAL APPLICATIONS: Long-term exposure to estrogen increases the risk of sickness since oxidative stress via the estrogen pathway, leading to DNA damage. This study indicated that mango (cultivar "Nam Dok Mai") extract contains β-carotene and lycopene, while banana (cultivar "Khai") extract contains β-carotene and lutein, which act as natural antioxidants. Both fruit extracts have preventive properties against oxidative DNA damage and are potentially good supplements for women taking E2 between HRT.
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Affiliation(s)
- Saranya Sedtananun
- Department of Biotechnology, Faculty of Applied Science, King Mongkut's University of Technology of North Bangkok, Bangkok, Thailand
| | - Kornkanok Promthep
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
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10
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Lee DY, Song MY, Kim EH. Role of Oxidative Stress and Nrf2/KEAP1 Signaling in Colorectal Cancer: Mechanisms and Therapeutic Perspectives with Phytochemicals. Antioxidants (Basel) 2021; 10:743. [PMID: 34067204 PMCID: PMC8151932 DOI: 10.3390/antiox10050743] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/01/2021] [Accepted: 05/04/2021] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer still has a high incidence and mortality rate, according to a report from the American Cancer Society. Colorectal cancer has a high prevalence in patients with inflammatory bowel disease. Oxidative stress, including reactive oxygen species (ROS) and lipid peroxidation, has been known to cause inflammatory diseases and malignant disorders. In particular, the nuclear factor erythroid 2-related factor 2 (Nrf2)/Kelch-like ECH-related protein 1 (KEAP1) pathway is well known to protect cells from oxidative stress and inflammation. Nrf2 was first found in the homolog of the hematopoietic transcription factor p45 NF-E2, and the transcription factor Nrf2 is a member of the Cap 'N' Collar family. KEAP1 is well known as a negative regulator that rapidly degrades Nrf2 through the proteasome system. A range of evidence has shown that consumption of phytochemicals has a preventive or inhibitory effect on cancer progression or proliferation, depending on the stage of colorectal cancer. Therefore, the discovery of phytochemicals regulating the Nrf2/KEAP1 axis and verification of their efficacy have attracted scientific attention. In this review, we summarize the role of oxidative stress and the Nrf2/KEAP1 signaling pathway in colorectal cancer, and the possible utility of phytochemicals with respect to the regulation of the Nrf2/KEAP1 axis in colorectal cancer.
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Affiliation(s)
- Da-Young Lee
- College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Seongnam 13488, Korea
| | - Moon-Young Song
- College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Seongnam 13488, Korea
| | - Eun-Hee Kim
- College of Pharmacy and Institute of Pharmaceutical Sciences, CHA University, Seongnam 13488, Korea
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11
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Tian C, Gao L, Zucker IH. Regulation of Nrf2 signaling pathway in heart failure: Role of extracellular vesicles and non-coding RNAs. Free Radic Biol Med 2021; 167:218-231. [PMID: 33741451 PMCID: PMC8096694 DOI: 10.1016/j.freeradbiomed.2021.03.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/26/2021] [Accepted: 03/11/2021] [Indexed: 12/11/2022]
Abstract
The balance between pro- and antioxidant molecules has been established as an important driving force in the pathogenesis of cardiovascular disease. Chronic heart failure is associated with oxidative stress in the myocardium and globally. Redox balance in the heart and brain is controlled, in part, by antioxidant proteins regulated by the transcription factor Nuclear factor erythroid 2-related factor 2 (Nrf2), which is reduced in the heart failure state. Nrf2 can, in turn, be regulated by a variety of mechanisms including circulating microRNAs (miRNAs) encapsulated in extracellular vesicles (EVs) derived from multiple cell types in the heart. Here, we review the role of the Nrf2 and antioxidant enzyme signaling pathway in mediating redox balance in the myocardium and the brain in the heart failure state. This review focuses on Nrf2 and antioxidant protein regulation in the heart and brain by miRNA-enriched EVs in the setting of heart failure. We discuss EV-mediated intra- and inter-organ communications especially, communication between the heart and brain via an EV pathway that mediates cardiac function and sympatho-excitation in heart failure. Importantly, we speculate how engineered EVs with specific miRNAs or antagomirs may be used in a therapeutic manner in heart failure.
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Affiliation(s)
- Changhai Tian
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, 68198-5880, USA
| | - Lie Gao
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, 68198-5850, USA
| | - Irving H Zucker
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, 68198-5850, USA.
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12
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Schlörmann W, Atanasov J, Lorkowski S, Dawczynski C, Glei M. Thermal Processing has no Impact on Chemopreventive Effects of Oat and Barley Kernels in LT97 Colon Adenoma Cells. Nutr Cancer 2020; 73:2708-2719. [PMID: 33305613 DOI: 10.1080/01635581.2020.1856892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The unique dietary fiber composition with high contents of β-glucan contributes to the health-promoting properties of oat and barley and may mediate a reduction of colon cancer risk. In the present study, chemopreventive effects of oat and barley (beta®barley) kernels were investigated. In order to address the impact of thermal processing on these effects, kernels were roasted (150-180 °C, approx. 20 min), digested and fermented using an In Vitro human digestion model. Concentrations of short-chain fatty acids (SCFA) and ammonia were determined in fermentation supernatants (FS). Growth inhibition, apoptosis, DNA integrity and gene expression of catalase were analyzed in LT97 colon adenoma cells. Concentrations of SCFA, particularly butyrate, were higher in oat/barley FS (2.2-fold, on average), while ammonia levels were significantly lower (0.7-fold, on average) than in the fermentation control. Treatment of LT97 cells with FS of oat/barley kernels led to a significant time- and dose-dependent growth reduction, a significant increase in caspase-3 activity and enhanced levels of catalase mRNA, without exhibiting genotoxic effects. In general, the results indicate a chemopreventive potential of In Vitro fermented oat and waxy winter barley mediated mainly by growth inhibitory and apoptotic effects, which are preserved after thermal processing.
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Affiliation(s)
- Wiebke Schlörmann
- Department of Nutritional Toxicology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster for Nutrition, Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Germany
| | - Julia Atanasov
- Department of Nutritional Toxicology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Stefan Lorkowski
- Competence Cluster for Nutrition, Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Germany.,Department of Nutritional Biochemistry and Physiology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Christine Dawczynski
- Competence Cluster for Nutrition, Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Germany.,Junior Research Group Nutritional Concepts, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Michael Glei
- Department of Nutritional Toxicology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster for Nutrition, Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Germany
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13
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Beneficial effects of Diplectria barbata (Wall. Ex C. B. Clarke) Franken et Roos extract on aging and antioxidants in vitro and in vivo. Toxicol Res 2020; 37:71-83. [PMID: 33489859 DOI: 10.1007/s43188-020-00064-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/21/2020] [Accepted: 09/01/2020] [Indexed: 01/02/2023] Open
Abstract
The purpose of this study is to explore the effects of Diplectria barbata (Wall. Ex C.B. Clarke) Franken & Roons (DFR) on wound healing, antioxidant and aging in Normal Human Dermal Fibroblast cell (NHDF) cells and mouse skin models. We investigated the effects of the aging process in vitro and in vivo. DFRtreated NHDF cells showed a concentration-dependent increase in the expression of extracellular matrix (ECM) proteins (Collagen-2.5-fold increase at 50 μg/ml, Elastin-1.5-fold increase at 1μg/ml) as well as an increase in proteins related to cell survival, differentiation, and development, while expression of aging proteins such as matrix metalloproteinase 3 (MMP-3) was decreased (5-fold decrease at 50 μg/ml). DFR treatment also led to enhanced expression of antioxidant proteins such as nuclear factor erythroid 2-related factor 2 (10-fold increase at 50 μg/ml) and heme oxygenase 1 (1.5-fold increase at 25 μg/ml). To further investigate the antioxidative effects of DFR extracts, the 2,2-diphenyl-1-picrylhydrazyl radical scavenging activities were also evaluated. DFR extracts improved wound healing and resulted in increased expression of ECM proteins, while enzymes involved in collagen degradation, including MMP-3, were decreased in NHDF cells as well as in a mouse model. This study demonstrates the anti-aging, antioxidant, and wound healing properties of DFR extracts. Therefore, DFR extracts present may facilitate skin protection and care.
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Glei M, Zetzmann S, Lorkowski S, Dawczynski C, Schlörmann W. Chemopreventive effects of raw and roasted oat flakes after in vitro fermentation with human faecal microbiota. Int J Food Sci Nutr 2020; 72:57-69. [PMID: 32482126 DOI: 10.1080/09637486.2020.1772205] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The aim of the present study was to analyse chemopreventive effects of oat flakes under consideration of processing. Thin and thick flakes were roasted and subjected to an in vitro digestion and fermentation. Fermentation supernatants (FS) were characterised and chemopreventive effects were analysed in LT97 colon adenoma cells. Compared to the fermentation control, pH values were decreased (from pH 6.3 to pH 5.0) and concentrations of SCFA, in particular butyrate, were increased in oat FS (2.6-fold, on average). Ammonia levels were not altered. Oat FS significantly decreased cell growth time- and dose-dependently. Caspase 3 activity was significantly increased (9.7-fold, on average). Oat FS slightly increased the mRNA expression of CAT (2.0-fold), SOD2 (1.7-fold) and GSTP1 (2.8-fold), on average, while GPX1 mRNA (0.3-fold) was decreased. The results indicate a chemopreventive potential of in vitro digested oat flakes regarding colon cancer development mediated mostly by growth inhibition and apoptosis, unaffected by roasting.
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Affiliation(s)
- Michael Glei
- Department of Nutritional Toxicology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Jena, Germany
| | - Silvana Zetzmann
- Department of Nutritional Toxicology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Stefan Lorkowski
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Jena, Germany.,Department of Nutritional Biochemistry and Physiology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Christine Dawczynski
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Jena, Germany.,Junior Research Group Nutritional Concepts, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany
| | - Wiebke Schlörmann
- Department of Nutritional Toxicology, Institute of Nutritional Sciences, Friedrich Schiller University Jena, Jena, Germany.,Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) Halle-Jena-Leipzig, Jena, Germany
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15
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Li HW, Lan TJ, Yun CX, Yang KD, Du ZC, Luo XF, Hao EW, Deng JG. Mangiferin exerts neuroprotective activity against lead-induced toxicity and oxidative stress via Nrf2 pathway. CHINESE HERBAL MEDICINES 2020; 12:36-46. [PMID: 36117559 PMCID: PMC9476390 DOI: 10.1016/j.chmed.2019.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/26/2019] [Accepted: 07/31/2019] [Indexed: 12/12/2022] Open
Affiliation(s)
- Hao-wen Li
- Community Health Services Management center, University of Chinese Academy of Sciences – Shenzhen Hospital, Shenzhen 518106, China
- MOE Key Lab of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Tai-jin Lan
- School of Basic Medical Science, Guangxi University of Chinese Medicine, Nanning 530200, China
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Chen-xia Yun
- School of Basic Medical Science, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Ke-di Yang
- MOE Key Lab of Environment and Health, Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zheng-cai Du
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Xue-fei Luo
- Department of Clinical Laboratory, Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning 530011, China
| | - Er-wei Hao
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Jia-gang Deng
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning 530200, China
- Corresponding author.
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16
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Schlörmann W, Atanasov J, Lorkowski S, Dawczynski C, Glei M. Study on chemopreventive effects of raw and roasted β-glucan-rich waxy winter barley using an in vitro human colon digestion model. Food Funct 2020; 11:2626-2638. [DOI: 10.1039/c9fo03009c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Fermentation supernatants of barley flakes exhibit chemopreventive effects in LT97 colon adenoma cells without impact of roasting.
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Affiliation(s)
- W. Schlörmann
- Friedrich Schiller University Jena
- Institute of Nutritional Sciences
- Department of Nutritional Toxicology
- 07743 Jena
- Germany
| | - J. Atanasov
- Friedrich Schiller University Jena
- Institute of Nutritional Sciences
- Department of Nutritional Toxicology
- 07743 Jena
- Germany
| | - S. Lorkowski
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD)
- Halle-Jena-Leipzig
- Germany
- Friedrich Schiller University Jena
- Institute of Nutritional Sciences
| | - C. Dawczynski
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD)
- Halle-Jena-Leipzig
- Germany
- Friedrich Schiller University Jena
- Institute of Nutritional Sciences
| | - M. Glei
- Friedrich Schiller University Jena
- Institute of Nutritional Sciences
- Department of Nutritional Toxicology
- 07743 Jena
- Germany
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17
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Effects of DCM Leaf Extract of Gnidia glauca (Fresen) on Locomotor Activity, Anxiety, and Exploration-Like Behaviors in High-Fat Diet-Induced Obese Rats. Behav Neurol 2019; 2019:7359235. [PMID: 31933694 PMCID: PMC6942765 DOI: 10.1155/2019/7359235] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 11/03/2019] [Accepted: 12/07/2019] [Indexed: 11/30/2022] Open
Abstract
Obesity is the main component of metabolic syndromes involving distinct etiologies that target different underlying behavioral and physiological functions within the brain structures and neuronal circuits. An alteration in the neuronal circuitry stemming from abdominal or central obesity stimulates a cascade of changes in neurochemical signaling that directly or indirectly mediate spontaneously emitted behaviors such as locomotor activity patterns, anxiety, and exploration. Pharmacological agents available for the treatment of neurologic disorders have been associated with limited potency and intolerable adverse effects. These have necessitated the upsurge in the utilization of herbal prescriptions due to their affordability and easy accessibility and are firmly embedded within wider belief systems of many people. Gnidia glauca has been used in the management of many ailments including obesity and associated symptomatic complications. However, its upsurge in use has not been accompanied by empirical determination of these folkloric claims. The present study, therefore, is aimed at determining the modulatory effects of dichloromethane leaf extract of Gnidia glauca on locomotor activity, exploration, and anxiety-like behaviors in high-fat diet-induced obese rats in an open-field arena. Obesity was experimentally induced by feeding the rats with prepared high-fat diet and water ad libitum for 6 weeks. The in vivo antiobesity effects were determined by oral administration of G. glauca at dosage levels of 200, 250, and 300 mg/kg body weight in high-fat diet-induced obese rats from the 6th to 12th week. Phytochemical analysis was done using gas chromatography linked to mass spectroscopy. Results indicated that Gnidia glauca showed anxiolytic effects and significantly increased spontaneous locomotor activity and exploration-like behaviors in HFD-induced obese rats. The plant extract also contained phytocompounds that have been associated with amelioration of the main neurodegenerative mediators, viz., inflammation and oxidative stress. These findings provide “qualified leads” for the synthesis of new alternative therapeutic agents for the management of neurologic disorders. However, there is a need to conduct toxicity studies of Gnidia glauca to establish its safety profiles.
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18
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Lin ZH, Chan YF, Pan MH, Tung YC, Su ZY. Aged Citrus Peel (Chenpi) Prevents Acetaminophen-Induced Hepatotoxicity by Epigenetically Regulating Nrf2 Pathway. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2019; 47:1833-1851. [PMID: 31795743 DOI: 10.1142/s0192415x19500939] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Excessive consumption of analgesic drug acetaminophen (APAP) can cause severe oxidative stress-mediated liver injury. Here, we investigated the protective effect and mechanism of aged citrus peel (Chenpi, CP), a Chinese herb usually used in foods in Asia, against APAP-induced hepatotoxicity. CP water (CP-WE), ethanolic (CP-EE), and water extraction residue ethanolic (CP-WREE) extracts were prepared. We found that CP-WREE contained higher content of bioactive flavonoids, including narirutin, nobiletin, and tangeretin, and more effectively enhanced the Nrf2 pathway in ARE-luciferase reporter gene transfected human HepG2-C8 cells. In mouse AML-12 hepatocytes, CP-WREE minimized APAP-induced damage and lipid peroxidation and increased mRNA and protein expressions of Nrf2 and its downstream defense enzymes (HO-1, NQO1, and UGT1A). CP-WREE also downregulated HDACs and DNMTs, upregulated KDMs, and increased the unmethylated Nrf2 promoter level. Additionally, CP-WREE blocked in vitro DNA methyltransferase activity. Taken together, CP-WREE might attenuate oxidative stress-induced hepatotoxicity through epigenetically regulating Nrf2-mediated cellular defense system.
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Affiliation(s)
- Zi-Han Lin
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan City, Taiwan
| | - Yen-Fan Chan
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan City, Taiwan
| | - Min-Hsiung Pan
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
| | - Yen-Chen Tung
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Zheng-Yuan Su
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan City, Taiwan
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19
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Alhassan SO, Atawodi SEO. Chemopreventive effect of dietary inclusion with Crassocephalum rubens (Juss ex Jacq) leaf on N-methyl-N-nitrosourea (MNU)-induced colorectal carcinogenesis in Wistar rats. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.103589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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20
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Arika W, Kibiti CM, Njagi JM, Ngugi MP. In Vitro Antioxidant Properties of Dichloromethanolic Leaf Extract of Gnidia glauca (Fresen) as a Promising Antiobesity Drug. J Evid Based Integr Med 2019; 24:2515690X19883258. [PMID: 31766874 PMCID: PMC6880035 DOI: 10.1177/2515690x19883258] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 09/14/2019] [Indexed: 12/20/2022] Open
Abstract
The acquisition of ethnobotanical information from traditional practitioners remains an empirical aspect of understanding the ethnopharmacology research. However, integration of information on chemical composition of plant extracts and their pharmacological activities forms a key resource for synthesis of new and effective therapeutics. In traditional African medicine, Gnidia glauca has folkloric remedies against obesity and its associated oxidative stress-mediated complications. However, the upsurge in its use has not been accompanied with scientific validations to support these claims. The present study aimed to determine the antioxidant potential of G glauca as a promising antiobesity agent. The antioxidant effects of the extract were assessed against 1,1-diphenyl-2-picrylhydrazyl, hydroxyl, hydrogen peroxide, nitric oxide, and superoxide radicals as well as lipid peroxidation, iron-chelating effect, and ferric-reducing power. Phytochemical analysis was conducted using gas chromatography linked to mass spectrophotometry. The results revealed that G glauca exhibited scavenging activities against all radicals formed. Besides, the extract showed iron chelation and ferric reducing abilities. The extract indicated a lower half maximal inhibitory concentration value than the standards used. For instance, the extract inhibited 50% of the formation of 2,2-diphenyl-1-picrylhydrazine at the concentration of 1.33 ± 0.03 mg/mL relative to 1.39 ± 0.06 mg/mL of the standard, vitamin C at 1% confidence limit. Similarly, the extract scavenged 50% of hydroxyl radical at 204.34 ± 10.64 μg/mL relative to 210.05 ± 8.80 μg/mL of gallic acid. The extract also contained various phytochemicals that have been associated with antiobesity effects. The synergistic effects of these phytocompounds increase their bioavailability and action on multiple molecular targets thereby correcting obesity-induced oxidative stress.
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21
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Bespalov VG, Alexandrov VA, Semenov AL, Vysochina GI, Kostikova VA, Baranenko DA. The inhibitory effect of Filipendula ulmaria (L.) Maxim. on colorectal carcinogenesis induced in rats by methylnitrosourea. JOURNAL OF ETHNOPHARMACOLOGY 2018; 227:1-7. [PMID: 30114518 DOI: 10.1016/j.jep.2018.08.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 08/01/2018] [Accepted: 08/11/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Meadowsweet (Filipendula ulmaria (L.) Maxim.) is a medicinal plant with a variety of therapeutic properties, traditionally used in various diseases including treatment and prevention of tumors. The aim of this study was to present an ethnomedicinal justification that a meadowsweet decoction is able to inhibit colorectal carcinogenesis induced by the methylnitrosourea (MNU) in rats. MATERIALS AND METHODS The chemical composition of meadowsweet extracts was studied by traditional methods. In animal experiments adult outbred female rats received four intrarectal instillations of MNU, one per week, at dose 4 mg in 0.5 ml saline (the total dose of MNU during the 4-week exposure was 16 mg/rat). After carcinogenic exposure one group (MNU) of rats continued to receive standard feed and tap water throughout life. In another group (MNU+meadowsweet), rats were given daily a decoction of the meadowsweet instead of drinking water and standard feed. RESULTS Meadowsweet extracts showed a sufficiently high content of flavonoids and tannins and also some individual phenolic compounds and salicylic acid. In rats after administration of MNU the overall incidence of tumors was 91% with tumor multiplicity of 3.5. The majority of rats (86%) developed multiple tumors of large intestine (most often adenocarcinomas:88 from 107; index of multiplicity - 2.0). In rats from the group MNU+meadowsweet there was a statistically significant decrease of the overall tumor incidence and multiplicity-by 1.4 and 2.9 times, respectively, and the incidence and multiplicity of colon tumors - by 2.0 and 2.8 times, respectively; the incidence and multiplicity of malignant tumors of other localizations was also reduced-by 2.2 and 3.0 times, respectively. CONCLUSIONS Meadowsweet extract is an effective inhibitor of colorectal carcinogenesis in experiment, that provides support for the traditional use of this plant in the oncology.
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Affiliation(s)
- Vladimir G Bespalov
- Laboratory of Cancer Chemoprevention and Oncopharmacology, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia; International Research Centre "Biotechnologies of the Third Millennium", ITMO University, St. Petersburg 191002, Russia.
| | - Valerij A Alexandrov
- Laboratory of Cancer Chemoprevention and Oncopharmacology, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia; International Research Centre "Biotechnologies of the Third Millennium", ITMO University, St. Petersburg 191002, Russia
| | - Alexander L Semenov
- Laboratory of Cancer Chemoprevention and Oncopharmacology, N.N. Petrov National Medical Research Center of Oncology, St. Petersburg 197758, Russia; International Research Centre "Biotechnologies of the Third Millennium", ITMO University, St. Petersburg 191002, Russia
| | - Galina I Vysochina
- Central Siberian Botanical Garden, Siberian Division of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Vera A Kostikova
- Central Siberian Botanical Garden, Siberian Division of the Russian Academy of Sciences, Novosibirsk 630090, Russia
| | - Denis A Baranenko
- International Research Centre "Biotechnologies of the Third Millennium", ITMO University, St. Petersburg 191002, Russia
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22
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Li X, Cheng Y, Zhong X, Zhang B, Bao Z, Zhang Y, Wang Z. Nuclear factor erythroid 2-related factor 2 activation mediates hyperhomocysteinemia-associated lipolysis suppression in adipocytes. Exp Biol Med (Maywood) 2018; 243:926-933. [PMID: 30105954 PMCID: PMC6108053 DOI: 10.1177/1535370218788520] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 06/19/2018] [Indexed: 12/18/2022] Open
Abstract
Hyperhomocysteinemia (HHcy) is associated with suppressed lipolytic response in adipocytes/adipose tissue, however, the underlying mechanism remains to be extensively studied. Nuclear factor erythroid 2-related factor 2 (Nrf2), a master transcriptional factor regulating antioxidant generation, has been recently reported to mediate lipid metabolism. Employing both fully differentiated 3T3-L1 adipocytes and male C57BL/6 mice, in the present study, we investigated the potential involvement of Nrf2 activation in HHcy-mediated lipolytic suppression. Our results showed that homocysteine (Hcy) treatment resulted in suppressed lipolysis, evidenced by increased intracellular triglyceride (TG) accumulation, decreased glycerol and free fatty acid (FFA) in fully differentiated 3T3-L1 adipocytes. Interestingly, Hcy exposure was associated with Nrf2 activation in adipocytes. Further studies showed that Nrf2 knockdown via siRNA transfection ameliorated Hcy-induced glycerol release in adipocytes. On the contrary, Nrf2 activators, epigallocatechin gallate (EGCG) and tert-butylhydroquinone (t-BHQ), increased intracellular TG content and decreased glycerol release in adipocytes. Importantly, our in vitro observations were corroborated by our in vivo findings, in which Hcy feeding (0.1% wt/vol) for four weeks induced Nrf2 expression in adipose tissue and lowered circulating FFA and glycerol levels in mice. Furthermore, EGCG injection (5 mg/kg/d) decreased circulating glycerol levels in comparison to the control group in mice. In conclusion, these results indicated that Nrf2 activation in response to HHcy plays an important role in mediating Hcy-suppressed lipolysis in adipocytes.
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Affiliation(s)
- Xin Li
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), Daqing 163319, Heilongjiang, P. R. China
| | - Yuhong Cheng
- Daqing Medical College, Daqing 163312, Heilongjiang, P.R. China
| | - Xiuli Zhong
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), Daqing 163319, Heilongjiang, P. R. China
| | - Bing Zhang
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), Daqing 163319, Heilongjiang, P. R. China
| | - Zhiwei Bao
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), Daqing 163319, Heilongjiang, P. R. China
| | - Yi Zhang
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), Daqing 163319, Heilongjiang, P. R. China
| | - Zhigang Wang
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), Daqing 163319, Heilongjiang, P. R. China
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23
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Choi DR, Jeong JH, Yu KS, Lee NS, Jeong YG, Kim DK, Na CS, Na DS, Hwang WM, Han SY. Extract of Rhus verniciflua stokes protects against renal ischemia-reperfusion injury by enhancing Nrf2-mediated induction of antioxidant enzymes. Exp Ther Med 2018; 15:3827-3835. [PMID: 29581741 PMCID: PMC5863602 DOI: 10.3892/etm.2018.5913] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 09/19/2017] [Indexed: 12/12/2022] Open
Abstract
Ischemia-reperfusion injury (IRI) may cause acute kidney disease (AKD) by mediating the oxidative stress-induced apoptosis of parenchymal cells. The extract of Rhus verniciflua Stokes (RVS) is used as a traditional herbal medicine as it exhibits anti-oxidant, anti-apoptotic and anti-inflammatory properties. Therefore, the current study investigated the therapeutic effect and the underlying mechanism of RVS on IRI-induced AKD in vivo and in vitro. The current study assessed the effects of RVS on a mouse model of renal IRI and in hypoxic human renal tubular epithelial HK-2 cells. The results demonstrated that the IRI-induced elevation of blood urea nitrogen, serum creatinine and lactate dehydrogenase was significantly attenuated by the intraoral administration of RVS (20 mg/kg/day) for 14 days prior to surgery. It was demonstrated that IRI surgery induced histological damage and cellular apoptosis in renal parenchyma, which were attenuated by pretreatment with RVS. Furthermore, in HK-2 cells incubated with 300 µM CoCl2 to induce chemical hypoxia, it was demonstrated that RVS treatment significantly inhibited cell death and the production of reactive oxygen species (ROS). Furthermore, RVS treatment upregulated the levels of endogenous antioxidant enzymes, including heme oxygenase-1 and catalase, as well as their upstream regulator nuclear factor erythroid 2-related factor 2, in HK-2 cells. Taken together, these results suggested that the intraoral administration of RVS induces a therapeutic effect on IRI-induced AKD. These effects are at least partly due to the attenuation of ROS production via upregulation of the antioxidant defense system in renal tubular cells.
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Affiliation(s)
- Du Ri Choi
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 302-718, Republic of South Korea
| | - Ji Heun Jeong
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 302-718, Republic of South Korea
| | - Kwang-Sik Yu
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 302-718, Republic of South Korea
| | - Nam-Seob Lee
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 302-718, Republic of South Korea
| | - Young-Gil Jeong
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 302-718, Republic of South Korea
| | - Do Kyung Kim
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 302-718, Republic of South Korea
| | - Chun Soo Na
- Lifetree Biotechnology Institute, Lifetree Biotech Co. Ltd, Suwon 441-813, Republic of South Korea
| | - Dae Seung Na
- Lifetree Biotechnology Institute, Lifetree Biotech Co. Ltd, Suwon 441-813, Republic of South Korea
| | - Won Min Hwang
- Division of Nephrology, Department of Internal Medicine, Konyang University Hospital, Daejeon 302-718, Republic of South Korea
| | - Seung-Yun Han
- Department of Anatomy, College of Medicine, Konyang University, Daejeon 302-718, Republic of South Korea.,Myunggok Research Institute, College of Medicine, Konyang University, Daejeon 302-718, Republic of South Korea
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Ramirez CN, Li W, Zhang C, Wu R, Su S, Wang C, Gao L, Yin R, Kong ANT. Correction to: In Vitro-In Vivo Dose Response of Ursolic Acid, Sulforaphane, PEITC, and Curcumin in Cancer Prevention. AAPS JOURNAL 2018; 20:27. [PMID: 29411155 DOI: 10.1208/s12248-018-0190-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The citation of the author name "Ah-Ng Tony Kong" in PubMed is not the author's preference. Instead of "Kong AT", the author prefers "Kong AN".
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Affiliation(s)
- Christina N Ramirez
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Cellular and Molecular Pharmacology Program, Rutgers Robert Wood Johnson Medical School, Piscataway, New Jersey, 08854, USA
| | - Wenji Li
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Chengyue Zhang
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Graduate Program in Pharmaceutical Sciences, Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Renyi Wu
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Shan Su
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Chao Wang
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Linbo Gao
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Ran Yin
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Ah-Ng Tony Kong
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA. .,Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA. .,Graduate Program in Pharmaceutical Sciences, Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA. .,Ernest Mario School of Pharmacy, Room 228, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, New Jersey, 08854, USA.
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Ramirez CN, Li W, Zhang C, Wu R, Su S, Wang C, Gao L, Yin R, Kong AN. In Vitro-In Vivo Dose Response of Ursolic Acid, Sulforaphane, PEITC, and Curcumin in Cancer Prevention. AAPS J 2017; 20:19. [PMID: 29264822 PMCID: PMC6021020 DOI: 10.1208/s12248-017-0177-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 11/29/2017] [Indexed: 02/07/2023] Open
Abstract
According to the National Center of Health Statistics, cancer was the culprit of nearly 600,000 deaths in 2016 in the USA. It is by far one of the most heterogeneous diseases to treat. Treatment for metastasized cancers remains a challenge despite modern diagnostics and treatment regimens. For this reason, alternative approaches are needed. Chemoprevention using dietary phytochemicals such as triterpenoids, isothiocyanates, and curcumin in the prevention of initiation and/or progression of cancer poses a promising alternative strategy. However, significant challenges exist in the extrapolation of in vitro cell culture data to in vivo efficacy in animal models and to humans. In this review, the dose at which these phytochemicals elicit a response in vitro and in vivo of a multitude of cellular signaling pathways will be reviewed highlighting Nrf2-mediated antioxidative stress, anti-inflammation, epigenetics, cytoprotection, differentiation, and growth inhibition. The in vitro-in vivo dose response of phytochemicals can vary due, in part, to the cell line/animal model used, the assay system of the biomarker used for the readout, chemical structure of the functional analog of the phytochemical, and the source of compounds used for the treatment study. While the dose response varies across different experimental designs, the chemopreventive efficacy appears to remain and demonstrate the therapeutic potential of triterpenoids, isothiocyanates, and curcumin in cancer prevention and in health in general.
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Affiliation(s)
- Christina N Ramirez
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Cellular and Molecular Pharmacology Program, Rutgers Robert Wood Johnson Medical School, Piscataway, New Jersey, 08854, USA
| | - Wenji Li
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Chengyue Zhang
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Graduate Program in Pharmaceutical Sciences, Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Renyi Wu
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Shan Su
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Chao Wang
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Linbo Gao
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Ran Yin
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA
| | - Ah-Ng Kong
- Center for Phytochemicals Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.
- Graduate Program in Pharmaceutical Sciences, Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, New Jersey, 08854, USA.
- Ernest Mario School of Pharmacy, Room 228, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, New Jersey, 08854, USA.
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Chemopreventive Potential of Raw and Roasted Pistachios Regarding Colon Carcinogenesis. Nutrients 2017; 9:nu9121368. [PMID: 29258268 PMCID: PMC5748818 DOI: 10.3390/nu9121368] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 12/05/2017] [Accepted: 12/12/2017] [Indexed: 12/12/2022] Open
Abstract
Pistachios are rich in health-promoting bioactive compounds such as B vitamins, γ-tocopherol, polyphenols and dietary fiber, which could contribute to the reduction of colon cancer risk in terms of chemoprevention (Fischer, S.; Glei, M. Health-Potential of Nuts. Ernaehrungs Umsch. Int. 2013, 60, 206-215.). Since pistachios are often consumed roasted, the present study aims at investigating the influence of different roasting conditions (RC) on potential chemopreventive effects of pistachios in colon adenoma cells such as growth and apoptosis, genotoxic- and anti-genotoxic effects and modulation of gene expression of detoxifying enzymes (CAT, SOD2, GPx1, and GSTP1). Fermentation supernatants (FS) were obtained from raw and roasted (RC1 = 141 °C/25 min, RC2 = 160 °C/15 min and RC3 = 185 °C/21 min) pistachios after in vitro fermentation. FS of pistachios significantly reduced LT97 cell growth in a time- and dose-dependent manner. Compared to the blank control, pistachio FS (2.5%) led to a significant average reduction of H₂O₂-induced DNA damage (1.5-fold). Levels of CAT mRNA were significantly increased (1.3-fold, on average for 5% FS). Pistachio FS (5%) significantly increased the number of early apoptotic cells (up to 2.1-fold) and levels of caspase-3 activities (up to 6.9-fold). The present results confirm a chemopreventive potential of pistachios, which is mediated by growth inhibition, induction of apoptosis and anti-genotoxic effects, as well as induction of CAT. These effects remain mostly unaffected by roasting.
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Antioxidant Potential of Selected Korean Edible Plant Extracts. BIOMED RESEARCH INTERNATIONAL 2017; 2017:7695605. [PMID: 29234683 PMCID: PMC5695029 DOI: 10.1155/2017/7695605] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 09/20/2017] [Accepted: 09/24/2017] [Indexed: 01/09/2023]
Abstract
This study aimed to evaluate the antioxidant activity of various plant extracts. A total of 94 kinds of edible plant extracts obtained from the Korea Plant Extract Bank were screened for cytotoxicity, following which the total phenolic content of 24 shortlisted extracts was determined. Of these, extracts from three plants, namely, Castanea crenata (CC) leaf, Camellia japonica (CJ) fruit, and Viburnum dilatatum (VD) leaf, were examined for antioxidant capabilities by measuring radical scavenging activity, ferric reducing/antioxidant power, and lipid peroxidation inhibitory activity. In addition, cellular antioxidant activities of the three extracts were assessed by a cell-based dichlorofluorescein assay and antioxidant response element (ARE) reporter activity assay. The results demonstrated that all three extracts concentration-dependently scavenged free radicals, inhibited lipid peroxidation, reduced the cellular level of reactive oxygen species, and increased ARE-luciferase activity, indicating antioxidant enzyme-inducing potential. In particular, CJ extract showed significantly greater antioxidative activity and antimigratory effect in a breast cancer cell line compared to CC and VD extracts. Hence, CJ extract deserves further study for its in vivo functionality or biologically active constituents.
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Zhang C, Wang C, Li W, Wu R, Guo Y, Cheng D, Yang Y, Androulakis IP, Kong AN. Pharmacokinetics and Pharmacodynamics of the Triterpenoid Ursolic Acid in Regulating the Antioxidant, Anti-inflammatory, and Epigenetic Gene Responses in Rat Leukocytes. Mol Pharm 2017; 14:3709-3717. [PMID: 29035547 PMCID: PMC5697757 DOI: 10.1021/acs.molpharmaceut.7b00469] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The triterpenoid ursolic acid (UA) has been proposed as a potential cancer chemopreventive agent in many preclinical and clinical studies. In the present work, we aimed to characterize the pharmacokinetics (PK) of UA and to quantitatively assess the antioxidative and anti-inflammatory effects of UA, which are potentially linked to its chemopreventive efficacy. UA was administered intravenously (i.v., 20 mg/kg) or by oral gavage (100 mg/kg) to male Sprague-Dawley rats, and blood samples were collected at a series of designated time points. The plasma concentration of UA was determined using a validated liquid chromatography-mass spectrometry (LC-MS) approach. A biexponential decline in the UA plasma concentration was observed after i.v. dosing and was fitted to a two-compartmental model. The expression levels of phase II drug metabolism (DM)/antioxidant genes and the inflammatory iNos gene in corresponding treatment arms were measured using qPCR as a pharmacodynamic (PD) marker. The expression of phase II DM/antioxidant genes increased and peaked approximately 3 h after 20 mg/kg UA treatment. In a lipopolysaccharide (LPS)-induced acute inflammation model, UA inhibited LPS-stimulated iNos expression and that of the epigenetic markers the DNA methyltransferases (DNMTs) and histone deacetylases (HDACs) in leukocytes. A PK-PD model using Jusko's indirect response model (IDR) with transition compartments (TC) was established to describe the time delay and magnitude of the gene expression elicited by UA. The PK-PD model provided reasonable fitting linking the plasma concentration of UA simultaneously with the PD response based on leukocyte mRNA expression. Overall, our results indicate that UA is effective at inducing various phase II DM/antioxidant genes and inhibiting pro-inflammatory genes in vivo. This PK-PD modeling approach may provide a conceptual framework for the future clinical evaluation of dietary chemopreventive agents in humans.
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Affiliation(s)
- Chengyue Zhang
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Chao Wang
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Wenji Li
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Renyi Wu
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Yue Guo
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - David Cheng
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Yuqing Yang
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Ioannis P. Androulakis
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Ah-Ng Kong
- Center for Phytochemical Epigenome Studies, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
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Penta D, Somashekar BS, Meeran SM. Epigenetics of skin cancer: Interventions by selected bioactive phytochemicals. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2017; 34:42-49. [DOI: 10.1111/phpp.12353] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/26/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Dhanamjai Penta
- Laboratory of Cancer Epigenetics; Department of Biochemistry; CSIR-Central Food Technological Research Institute; Mysore India
| | - Bagganahalli S. Somashekar
- Laboratory of Cancer Epigenetics; Department of Biochemistry; CSIR-Central Food Technological Research Institute; Mysore India
| | - Syed Musthapa Meeran
- Laboratory of Cancer Epigenetics; Department of Biochemistry; CSIR-Central Food Technological Research Institute; Mysore India
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In vitro–fermented raw and roasted walnuts induce expression of CAT and GSTT2 genes, growth inhibition, and apoptosis in LT97 colon adenoma cells. Nutr Res 2017; 47:72-80. [DOI: 10.1016/j.nutres.2017.09.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 07/18/2017] [Accepted: 09/13/2017] [Indexed: 12/21/2022]
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Hwang ES, Ok JS, Song S. Chemical and Physical Approaches to Extend the Replicative and Differentiation Potential of Stem Cells. Stem Cell Rev Rep 2017; 12:315-26. [PMID: 27085715 DOI: 10.1007/s12015-016-9652-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cell therapies using mesenchymal stem cells (MSCs) and endothelial progenitor cells (EPCs) are increasing in regenerative medicine, with applications to a growing number of aging-associated dysfunctions and degenerations. For successful therapies, a certain mass of cells is needed, requiring extensive ex vivo expansion of the cells. However, the proliferation of both MSCs and EPCs is limited as a result of telomere shortening-induced senescence. As cells approach senescence, their proliferation slows down and differentiation potential decreases. Therefore, ways to delay senescence and extend the replicative lifespan these cells are needed. Certain proteins and pathways play key roles in determining the replicative lifespan by regulating ROS generation, damage accumulation, or telomere shortening. And, their agonists and gene activators exert positive effects on lifespan. In many of the treatments, importantly, the lifespan is extended with the retention of differentiation potential. Furthermore, certain culture conditions, including the use of specific atmospheric conditions and culture substrates, exert positive effects on not only the proliferation rate, but also the extent of proliferation and differentiation potential as well as lineage determination. These strategies and known underlying mechanisms are introduced in this review, with an evaluation of their pros and cons in order to facilitate safe and effective MSC expansion ex vivo.
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Affiliation(s)
- Eun Seong Hwang
- Department of Life Science, University of Seoul, Dongdaemun-gu, Seoulsiripdaero 163, Seoul, 02504, Republic of Korea.
| | - Jeong Soo Ok
- Department of Life Science, University of Seoul, Dongdaemun-gu, Seoulsiripdaero 163, Seoul, 02504, Republic of Korea
| | - SeonBeom Song
- Department of Life Science, University of Seoul, Dongdaemun-gu, Seoulsiripdaero 163, Seoul, 02504, Republic of Korea
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Porokhovnik LN, Pisarev VM. Association of polymorphisms in NFE2L2 gene encoding transcription factor Nrf2 with multifactorial diseases. RUSS J GENET+ 2017. [DOI: 10.1134/s1022795417080051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Taxifolin Activates the Nrf2 Anti-Oxidative Stress Pathway in Mouse Skin Epidermal JB6 P+ Cells through Epigenetic Modifications. Int J Mol Sci 2017; 18:ijms18071546. [PMID: 28714938 PMCID: PMC5536034 DOI: 10.3390/ijms18071546] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 07/04/2017] [Accepted: 07/07/2017] [Indexed: 12/31/2022] Open
Abstract
Nuclear factor erythroid-2 related factor 2 (Nrf2) is a vital transcription factor that regulates the anti-oxidative defense system. Previous reports suggested that the expression of the Nrf2 gene can be regulated by epigenetic modifications. The potential epigenetic effect of taxifolin (TAX), a potent cancer chemopreventive agent, in skin cancer chemoprotection is unknown. In this study, we investigated how Nrf2 is epigenetically regulated by TAX in JB6 P+ cells. TAX was found to inhibit the 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced colony formation of JB6 P+ cells. TAX induced antioxidant response element (ARE)-luciferase activity in HepG2-C8 cells and up-regulated mRNA and protein levels of Nrf2 and its downstream genes heme oxygenase-1 (HO-1) and NAD(P)H quinone oxidoreductase 1 (NQO1), in JB6 P+ cells. Furthermore, bisulfite genomic sequencing revealed that TAX treatment reduces the methylation level of the first 15 CpGs sites in the Nrf2 promoter. Western blotting showed that TAX inhibits the expression levels of DNA methyltransferase (DNMT) and histone deacetylase (HDAC) proteins. In summary, our results revealed that TAX can induce expression of Nrf2 and its downstream target genes in JB6 P+ cells by CpG demethylation. These finding suggest that TAX may exhibit a skin cancer preventive effect by activating Nrf2 via an epigenetic pathway.
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Chen JY, Zhu GY, Su XH, Wang R, Liu J, Liao K, Ren R, Li T, Liu L. 7-deacetylgedunin suppresses inflammatory responses through activation of Keap1/Nrf2/HO-1 signaling. Oncotarget 2017; 8:55051-55063. [PMID: 28903401 PMCID: PMC5589640 DOI: 10.18632/oncotarget.19017] [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: 04/12/2017] [Accepted: 06/11/2017] [Indexed: 11/25/2022] Open
Abstract
Macrophages play a critical role in a variety of inflammatory diseases. Activation of Keap1/Nrf2/HO-1 signaling results in inactivation of macrophages and amelioration of inflammatory and autoimmune conditions. Hence, discovery for the activators of Keap1/Nrf2/HO-1 signaling has become a promising strategy for treatment inflammatory diseases. In the current study, the anti-inflammatory potential of 7-deacetylgedunin (7-DGD), a limonin chemical isolated from the fruits of Toona sinensis (A. Juss.) Roem, was intensively examined in vivo and in vitro for the first time. Results showed that 7-DGD alleviated mice mortality induced by LPS. Mechanistic study showed that 7-DGD suppressed macrophage proliferation via induction of cell arrest at the G0/G1 phase. Furthermore, 7-DGD inhibited iNOS expression, which is correlated with the increases of NQO1, HO-1 and UGT1A1 mRNA expression as well as HO-1 protein expression level in the cells. More importantly, 7-DGD markedly decreased Keap1 expression, promoted p62 expression, and facilitated Nrf2 translocation and localization in the nucleus of macrophages, and in turn up-regulates these anti-oxidant enzymes expression, eventually mediated anti-inflammatory effect. Collectively, 7-DGD suppresses inflammation in vivo and in vitro, indicating that the compound is valuable for further investigation as an anti-inflammatory agent in future.
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Affiliation(s)
- Jian-Yu Chen
- 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
| | - Guo-Yuan Zhu
- 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
| | - Xiao-Hui Su
- 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 Wang
- 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
| | - Juan Liu
- 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
| | - Kangsheng Liao
- 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
| | - Rutong Ren
- 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
| | - Ting Li
- 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
| | - Liang Liu
- 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
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35
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Zhao C, Hou W, Lei H, Huang L, Wang S, Cui D, Xing C, Wang X, Peng Y. Potassium 2-(l-hydroxypentyl)-benzoate attenuates neuroinflammatory responses and upregulates heme oxygenase-1 in systemic lipopolysaccharide-induced inflammation in mice. Acta Pharm Sin B 2017; 7:470-478. [PMID: 28752032 PMCID: PMC5518660 DOI: 10.1016/j.apsb.2017.04.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/02/2017] [Accepted: 03/14/2017] [Indexed: 12/15/2022] Open
Abstract
A neuroinflammatory response is commonly involved in the progression of many neurodegenerative diseases. Potassium 2-(1-hydroxypentyl)-benzoate (PHPB), a novel neuroprotective compound, has shown promising effects in the treatment of ischemic stroke and Alzheimer׳s disease (AD). In the present study, the anti-inflammatory effects of PHPB were investigated in the plasma and brain of C57BL/6 mice administered a single intraperitoneal (i.p.) injection of lipopolysaccharide (LPS). Levels of iNOS and the cytokines TNFα, IL-1β and IL-10 were elevated in plasma, cerebral cortex and hippocampus after LPS injection and the number of microglia and astrocytes in cortex and hippocampus were increased. LPS also upregulated the expression of heme oxygenase-1 (HO-1) in the cortex and hippocampus. PHPB reduced the levels of iNOS and cytokines in the plasma and brain, decreased the number of microglia and astrocytes and further enhanced the upregulation of HO-1. In addition, PHPB inhibited the LPS-induced phosphorylation of ERK, P38 and JNK. These results suggest that PHPB is a potential candidate in the treatment of neurodegenerative diseases through inhibiting neuroinflammation.
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36
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Schlörmann W, Fischer S, Saupe C, Dinc T, Lorkowski S, Glei M. Influence of roasting on the chemopreventive potential of in vitro fermented almonds in LT97 colon adenoma cells. Int J Food Sci Nutr 2017; 69:52-63. [PMID: 28583046 DOI: 10.1080/09637486.2017.1334140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The consumption of almonds may contribute to the prevention of colon cancer due to their unique composition of health promoting compounds. Since almonds are often consumed roasted, the impact of different roasting (R) conditions (R1 = 139.2 °C/25 min, R2 = 161.5 °C/20 min and R3 = 170.8 °C/15 min) on chemopreventive effects of in vitro-fermented almonds was analysed in LT97 colon adenoma cells. Fermentation supernatants (FS) of raw and roasted almonds had no genotoxic effects. FS obtained from raw or mildly roasted almonds (R1) significantly increased mRNA levels of CAT (4.6-fold), SOD2 (5.6-fold) and GSTP1 (3.9-fold) but not of GPx1. FS of almonds significantly reduced the growth of LT97 cells in a time- and dose-dependent manner. Treatment with 5% almonds FS increased the number of early apoptotic cells (17.4%, on average) and caspase-3 activity (4.9-fold, on average). The results indicate a chemopreventive potential of in vitro-fermented almonds which is largely independent of the roasting process.
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Affiliation(s)
- Wiebke Schlörmann
- a Department of Nutritional Toxicology , Institute of Nutrition, Friedrich Schiller University Jena , Jena , Germany.,b Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) , Halle-Jena-Leipzig , Germany
| | - Sonja Fischer
- a Department of Nutritional Toxicology , Institute of Nutrition, Friedrich Schiller University Jena , Jena , Germany
| | - Christian Saupe
- a Department of Nutritional Toxicology , Institute of Nutrition, Friedrich Schiller University Jena , Jena , Germany
| | - Tülin Dinc
- a Department of Nutritional Toxicology , Institute of Nutrition, Friedrich Schiller University Jena , Jena , Germany
| | - Stefan Lorkowski
- b Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) , Halle-Jena-Leipzig , Germany.,c Department of Nutritional Biochemistry and Physiology , Friedrich Schiller University Jena, Institute of Nutrition , Jena , Germany
| | - Michael Glei
- a Department of Nutritional Toxicology , Institute of Nutrition, Friedrich Schiller University Jena , Jena , Germany.,b Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD) , Halle-Jena-Leipzig , Germany
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McBean GJ, López MG, Wallner FK. Redox-based therapeutics in neurodegenerative disease. Br J Pharmacol 2017; 174:1750-1770. [PMID: 27477685 PMCID: PMC5446580 DOI: 10.1111/bph.13551] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 06/02/2016] [Accepted: 07/01/2016] [Indexed: 12/13/2022] Open
Abstract
This review describes recent developments in the search for effective therapeutic agents that target redox homeostasis in neurodegenerative disease. The disruption to thiol redox homeostasis in Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis and multiple sclerosis is discussed, together with the experimental strategies that are aimed at preventing, or at least minimizing, oxidative damage in these diseases. Particular attention is given to the potential of increasing antioxidant capacity by targeting the Nrf2 pathway, the development of inhibitors of NADPH oxidases that are likely candidates for clinical use, together with strategies to reduce nitrosative stress and mitochondrial dysfunction. We describe the shortcomings of compounds that hinder their progression to the clinic and evaluate likely avenues for future research. LINKED ARTICLES This article is part of a themed section on Redox Biology and Oxidative Stress in Health and Disease. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.12/issuetoc.
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Affiliation(s)
- G J McBean
- School of Biomolecular and Biomedical Science, Conway InstituteUniversity College DublinDublinIreland
| | - M G López
- Instituto Teófilo Hernando for Drug Discovery, Department of Pharmacology, School of MedicineUniversidad Autónoma de MadridMadridSpain
| | - F K Wallner
- Redoxis ABSweden and University of SkövdeSkövdeSweden
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Non-canonical activation of NRF2: New insights and its relevance to disease. CURRENT PATHOBIOLOGY REPORTS 2017; 5:171-176. [PMID: 29082113 DOI: 10.1007/s40139-017-0131-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
PURPOSE OF REVIEW The goal of this review is to summarize the current knowledge in the field regarding the non-canonical activation of the NRF2 pathway. Specifically, we address what role p62 plays in mediating this pathway, which pathologies have been linked to the p62-dependent activation of NRF2, as well as what therapeutic strategies could be used to treat diseases associated with the non-canonical pathway. RECENT FINDINGS It has recently been shown that autophagic dysfunction leads to the aggregation or autophagosomal accumulation of p62, which sequesters KEAP1, resulting in prolonged activation of NRF2. The ability of p62 to outcompete NRF2 for KEAP1 binding depends on its abundance, or post-translational modifications to its key domains. Furthermore, the relevance of the p62-dependent activation of NRF2 in disease has been demonstrated in human hepatocellular carcinomas, as well as neurodegenerative diseases. SUMMARY These findings indicate that targeting p62, or the enzymes that modify it, could prove to be an advantageous strategy for treating diseases associated with autophagy dysregulation and prolonged activation of NRF2. Other therapeutic possibilities include restoring proper autophagic function, or directly inhibiting NRF2 or its targets, to restore redox and metabolic homeostasis. Future studies will help further clarify the mechanisms, regulation, and relevance of the non-canonical pathway in driving disease pathogenesis.
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Ratovitski EA. Anticancer Natural Compounds as Epigenetic Modulators of Gene Expression. Curr Genomics 2017; 18:175-205. [PMID: 28367075 PMCID: PMC5345332 DOI: 10.2174/1389202917666160803165229] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 11/24/2015] [Accepted: 11/29/2015] [Indexed: 11/30/2022] Open
Abstract
Accumulating evidence shows that hallmarks of cancer include: "genetic and epigenetic alterations leading to inactivation of cancer suppressors, overexpression of oncogenes, deregulation of intracellular signaling cascades, alterations of cancer cell metabolism, failure to undergo cancer cell death, induction of epithelial to mesenchymal transition, invasiveness, metastasis, deregulation of immune response and changes in cancer microenvironment, which underpin cancer development". Natural compounds as bioactive ingredients isolated from natural sources (plants, fungi, marine life forms) have revolutionized the field of anticancer therapeutics and rapid developments in preclinical studies are encouraging. Natural compounds could affect the epigenetic molecular mechanisms that modulate gene expression, as well as DNA damage and repair mechanisms. The current review will describe the latest achievements in using naturally produced compounds targeting epigenetic regulators and modulators of gene transcription in vitro and in vivo to generate novel anticancer therapeutics.
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Affiliation(s)
- Edward A. Ratovitski
- Head and Neck Cancer Research Division, Department of Otolaryngology/Head and Neck Surgery, The Johns Hopkins School of Medicine, Baltimore, MD 21231, USA
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p97 Negatively Regulates NRF2 by Extracting Ubiquitylated NRF2 from the KEAP1-CUL3 E3 Complex. Mol Cell Biol 2017; 37:MCB.00660-16. [PMID: 28115426 PMCID: PMC5376629 DOI: 10.1128/mcb.00660-16] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 01/14/2017] [Indexed: 12/28/2022] Open
Abstract
Activation of the stress-responsive transcription factor NRF2 is the major line of defense to combat oxidative or electrophilic insults. Under basal conditions, NRF2 is continuously ubiquitylated by the KEAP1-CUL3-RBX1 E3 ubiquitin ligase complex and is targeted to the proteasome for degradation (the canonical mechanism). However, the path from the CUL3 complex to ultimate proteasomal degradation was previously unknown. p97 is a ubiquitin-targeted ATP-dependent segregase that extracts ubiquitylated client proteins from membranes, protein complexes, or chromatin and has an essential role in autophagy and the ubiquitin proteasome system (UPS). In this study, we show that p97 negatively regulates NRF2 through the canonical pathway by extracting ubiquitylated NRF2 from the KEAP1-CUL3 E3 complex, with the aid of the heterodimeric cofactor UFD1/NPL4 and the UBA-UBX-containing protein UBXN7, for efficient proteasomal degradation. Given the role of NRF2 in chemoresistance and the surging interest in p97 inhibitors to treat cancers, our results indicate that dual p97/NRF2 inhibitors may offer a more potent and long-term avenue of p97-targeted treatment.
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Li Y, Wu Q, Wang Y, Li L, Bu H, Bao J. Senescence of mesenchymal stem cells (Review). Int J Mol Med 2017; 39:775-782. [PMID: 28290609 DOI: 10.3892/ijmm.2017.2912] [Citation(s) in RCA: 172] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 01/13/2017] [Indexed: 02/05/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have been used in cell-based therapy for various diseases, due to their immunomodulatory and inflammatory effects. However, the function of MSCs is known to decline with age, a process that is called senescence. To date, the process of MSC senescence remains unknown as in-depth understanding of the mechanisms involved in cellular senescence is lacking. First, senescent MSCs are so heterogeneous that not all of them express the same phenotypic markers. In addition, the genes and signaling pathways which regulate this process in MSCs are still unknown. Thus, an understanding of the molecular processes controlling MSC senescence is crucial to determining the drivers and effectors of age-associated MSC dysfunction. Moreover, the proper use of MSCs for clinical application requires a general understanding of the MSC aging process. Furthermore, such knowledge is essential for the development of therapeutic interventions that can slow or reverse age-related degenerative changes to enhance repair processes and maintain healthy function in aging tissues. To further clarify the properties of senescent cells, as well as to present significant findings from studies on the mechanisms of cellular aging, we summarize these biological features in the senescence of MSCs in this scenario. This review summarizes recent advances in our understanding of the markers and differentiation potential indicating MSC senescence, as well as factors affecting MSC senescence with particular emphasis on the roles of oxidative stress, intrinsic changes in telomere shortening, histone deacetylase and DNA methyltransferase, genes and signaling pathways and immunological properties.
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Affiliation(s)
- Yi Li
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Qiong Wu
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yujia Wang
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Li Li
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Hong Bu
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Ji Bao
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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Farabegoli F, Scarpa E, Frati A, Serafini G, Papi A, Spisni E, Antonini E, Benedetti S, Ninfali P. Betalains increase vitexin-2-O-xyloside cytotoxicity in CaCo-2 cancer cells. Food Chem 2017; 218:356-364. [DOI: 10.1016/j.foodchem.2016.09.112] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 03/16/2016] [Accepted: 09/16/2016] [Indexed: 01/30/2023]
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Antioxidant, Immunomodulating, and Microbial-Modulating Activities of the Sustainable and Ecofriendly Spirulina. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:3247528. [PMID: 28182098 PMCID: PMC5274660 DOI: 10.1155/2017/3247528] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 11/26/2016] [Accepted: 12/12/2016] [Indexed: 12/30/2022]
Abstract
The highly nutritional and ecofriendly Spirulina (Arthrospira platensis) has hypolipidemic, hypoglycemic, and antihypertensive properties. Spirulina contains functional compounds, such as phenolics, phycocyanins, and polysaccharides, with antioxidant, anti-inflammatory, and immunostimulating effects. Studies conducted on Spirulina suggest that it is safe in healthy subjects, but attitude to eating probably affects the acceptability of Spirulina containing foods. Although the antioxidant effect of Spirulina is confirmed by the intervention studies, the concerted modulation of antioxidant and inflammatory responses, suggested by in vitro and animal studies, requires more confirmation in humans. Spirulina supplements seem to affect more effectively the innate immunity, promoting the activity of natural killer cells. The effects on cytokines and on lymphocytes' proliferation depend on age, gender, and body weight differences. In this context, ageing and obesity are both associated with chronic low grade inflammation, immune impairment, and intestinal dysbiosis. Microbial-modulating activities have been reported in vitro, suggesting that the association of Spirulina and probiotics could represent a new strategy to improve the growth of beneficial intestinal microbiota. Although Spirulina might represent a functional food with potential beneficial effects on human health, the human interventions used only supplements. Therefore, the effect of food containing Spirulina should be evaluated in the future.
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Schlörmann W, Lamberty J, Lorkowski S, Ludwig D, Mothes H, Saupe C, Glei M. Chemopreventive potential ofin vitrofermented nuts in LT97 colon adenoma and primary epithelial colon cells. Mol Carcinog 2017; 56:1461-1471. [DOI: 10.1002/mc.22606] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 11/29/2016] [Accepted: 12/15/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Wiebke Schlörmann
- Department of Nutritional Toxicology; Friedrich Schiller University Jena, Institute of Nutrition; Jena Germany
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD); Halle-Jena-Leipzig Germany
| | - Julia Lamberty
- Department of Nutritional Toxicology; Friedrich Schiller University Jena, Institute of Nutrition; Jena Germany
| | - Stefan Lorkowski
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD); Halle-Jena-Leipzig Germany
- Department of Nutritional Biochemistry and Physiology; Friedrich Schiller University Jena, Institute of Nutrition; Jena Germany
| | - Diana Ludwig
- Department of Nutritional Toxicology; Friedrich Schiller University Jena, Institute of Nutrition; Jena Germany
| | - Henning Mothes
- Department of General; Visceral and Vascular Surgery, Friedrich Schiller University Jena; Jena Germany
| | - Christian Saupe
- Department of Nutritional Toxicology; Friedrich Schiller University Jena, Institute of Nutrition; Jena Germany
| | - Michael Glei
- Department of Nutritional Toxicology; Friedrich Schiller University Jena, Institute of Nutrition; Jena Germany
- Competence Cluster for Nutrition and Cardiovascular Health (nutriCARD); Halle-Jena-Leipzig Germany
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d,l-Sulforaphane Induces ROS-Dependent Apoptosis in Human Gliomablastoma Cells by Inactivating STAT3 Signaling Pathway. Int J Mol Sci 2017; 18:ijms18010072. [PMID: 28054986 PMCID: PMC5297707 DOI: 10.3390/ijms18010072] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 12/11/2016] [Accepted: 12/26/2016] [Indexed: 12/25/2022] Open
Abstract
d,l-Sulforaphane (SFN), a synthetic analogue of broccoli-derived isomer l-SFN, exerts cytotoxic effects on multiple tumor cell types through different mechanisms and is more potent than the l-isomer at inhibiting cancer growth. However, the means by which SFN impairs glioblastoma (GBM) cells remains poorly understood. In this study, we investigated the anti-cancer effect of SFN in GBM cells and determined the underlying molecular mechanisms. Cell viability assays, flow cytometry, immunofluorescence, and Western blot results revealed that SFN could induced apoptosis of GBM cells in a dose- and time-dependent manner, via up-regulation of caspase-3 and Bax, and down-regulation of Bcl-2. Mechanistically, SFN treatment led to increase the intracellular reactive oxygen species (ROS) level in GBM cells. Meanwhile, SFN also suppressed both constitutive and IL-6-induced phosphorylation of STAT3, and the activation of upstream JAK2 and Src tyrosine kinases, dose- and time-dependently. Moreover, blockage of ROS production by using the ROS inhibitor N-acetyl-l-cysteine totally reversed SFN-mediated down-regulation of JAK2/Src-STAT3 signaling activation and the subsequent effects on apoptosis by blocking the induction of apoptosis-related genes in GBM cells. Taken together, our data suggests that SFN induces apoptosis in GBM cells via ROS-dependent inactivation of STAT3 phosphorylation. These findings motivate further evaluation of SFN as a cancer chemopreventive agent in GBM treatment.
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Abstract
[Purpose] The purpose of this review is to discuss current views regarding the acute effects of phytochemicals, exercise, and exercise plus phytochemicals on fatty acid oxidation. [Methods] Data acquired from human and animal studies were comprehensively assessed to determine the single and combined effects of phytochemicals and exercise on fatty acid oxidation. In addition, underlying mechanisms associated with those conditions that may contribute to the regulation of fat metabolism are discussed. [Results] Although not all phytochemicals are effective at increasing fatty acid oxidation, some significantly improve the rate of fatty acid oxidation at rest. In addition, dietary supplementation of p-synephrine, catechins, or anthocyanins in combination with moderately intense exercise has the additive effect of increasing fatty acid oxidation, but not total energy expenditure during exercise. [Conclusion] The data reported from current reviewed studies suggest positive outcomes regarding facilitation of fatty acid oxidation from the combined effects of certain phytochemicals with exercise. Those data provide new insight for developing a strategy to boost fat loss and control weight in obese patients.
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Affiliation(s)
- Jong-Hee Kim
- Department of Physical Education, Hanyang University, Seoul, Republic of Korea
| | - Yoonjung Park
- Department of Health and Human Performance, University of Houston, Houston, U.S.A
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47
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Peng Z, Chen L, Nüssler AK, Liu L, Yang W. Current sights for mechanisms of deoxynivalenol-induced hepatotoxicity and prospective views for future scientific research: A mini review. J Appl Toxicol 2016; 37:518-529. [DOI: 10.1002/jat.3428] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/07/2016] [Accepted: 11/07/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Zhao Peng
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College; Huazhong University of Science and Technology; Hangkong Road 13 430030 Wuhan China
| | - Liangkai Chen
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College; Huazhong University of Science and Technology; Hangkong Road 13 430030 Wuhan China
| | - Andreas K. Nüssler
- Department of Traumatology, BG Trauma center; University of Tübingen; Schnarrenbergstr. 95 72076 Tübingen Germany
| | - Liegang Liu
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College; Huazhong University of Science and Technology; Hangkong Road 13 430030 Wuhan China
- Department of Nutrition and Food Hygiene and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College; Huazhong University of Science and Technology; Hangkong Road 13 430030 Wuhan China
| | - Wei Yang
- Department of Nutrition and Food Hygiene, Hubei Key Laboratory of Food Nutrition and Safety, Tongji Medical College; Huazhong University of Science and Technology; Hangkong Road 13 430030 Wuhan China
- Department of Nutrition and Food Hygiene and MOE Key Lab of Environment and Health, School of Public Health, Tongji Medical College; Huazhong University of Science and Technology; Hangkong Road 13 430030 Wuhan China
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Bespalov VG, Alexandrov VA, Semenov AL, Kovan’ko EG, Ivanov SD, Vysochina GI, Kostikova VA, Baranenko DA. The inhibitory effect of meadowsweet (Filipendula ulmaria) on radiation-induced carcinogenesis in rats. Int J Radiat Biol 2016; 93:394-401. [DOI: 10.1080/09553002.2016.1257834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Vladimir G. Bespalov
- N. N. Petrov Research Institute of Oncology of Ministry of Health of Russian Federation, St. Petersburg, Russia
- International Research Centre “Biotechnologies of the Third Millennium”, ITMO University, St. Petersburg, Russia
| | - Valery A. Alexandrov
- N. N. Petrov Research Institute of Oncology of Ministry of Health of Russian Federation, St. Petersburg, Russia
- International Research Centre “Biotechnologies of the Third Millennium”, ITMO University, St. Petersburg, Russia
| | - Alexandr L. Semenov
- N. N. Petrov Research Institute of Oncology of Ministry of Health of Russian Federation, St. Petersburg, Russia
- Russian Research Center of Radiology and Surgical Technologies of the Ministry of Health of the Russian Federation, St. Petersburg, Russia
- International Research Centre “Biotechnologies of the Third Millennium”, ITMO University, St. Petersburg, Russia
| | - Elena G. Kovan’ko
- Russian Research Center of Radiology and Surgical Technologies of the Ministry of Health of the Russian Federation, St. Petersburg, Russia
| | - Sergey D. Ivanov
- Russian Research Center of Radiology and Surgical Technologies of the Ministry of Health of the Russian Federation, St. Petersburg, Russia
| | - Galina I. Vysochina
- Central Siberian Botanical Garden, Siberian Division of Russian Academy of Sciences, Novosibirsk, Russia
| | - Vera A. Kostikova
- Central Siberian Botanical Garden, Siberian Division of Russian Academy of Sciences, Novosibirsk, Russia
| | - Denis A. Baranenko
- International Research Centre “Biotechnologies of the Third Millennium”, ITMO University, St. Petersburg, Russia
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Li W, Guo Y, Zhang C, Wu R, Yang AY, Gaspar J, Kong ANT. Dietary Phytochemicals and Cancer Chemoprevention: A Perspective on Oxidative Stress, Inflammation, and Epigenetics. Chem Res Toxicol 2016; 29:2071-2095. [PMID: 27989132 DOI: 10.1021/acs.chemrestox.6b00413] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Oxidative stress occurs when cellular reactive oxygen species levels exceed the self-antioxidant capacity of the body. Oxidative stress induces many pathological changes, including inflammation and cancer. Chronic inflammation is believed to be strongly associated with the major stages of carcinogenesis. The nuclear factor erythroid 2-related factor 2 (Nrf2) pathway plays a crucial role in regulating oxidative stress and inflammation by manipulating key antioxidant and detoxification enzyme genes via the antioxidant response element. Many dietary phytochemicals with cancer chemopreventive properties, such as polyphenols, isothiocyanates, and triterpenoids, exert antioxidant and anti-inflammatory functions by activating the Nrf2 pathway. Furthermore, epigenetic changes, including DNA methylation, histone post-translational modifications, and miRNA-mediated post-transcriptional alterations, also lead to various carcinogenesis processes by suppressing cancer repressor gene transcription. Using epigenetic research tools, including next-generation sequencing technologies, many dietary phytochemicals are shown to modify and reverse aberrant epigenetic/epigenome changes, potentially leading to cancer prevention/treatment. Thus, the beneficial effects of dietary phytochemicals on cancer development warrant further investigation to provide additional impetus for clinical translational studies.
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Affiliation(s)
- Wenji Li
- Center for Cancer Prevention Research, ‡Department of Pharmaceutics, §Graduate Program in Pharmaceutical Sciences, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey , Piscataway, New Jersey 08854, United States
| | - Yue Guo
- Center for Cancer Prevention Research, ‡Department of Pharmaceutics, §Graduate Program in Pharmaceutical Sciences, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey , Piscataway, New Jersey 08854, United States
| | - Chengyue Zhang
- Center for Cancer Prevention Research, ‡Department of Pharmaceutics, §Graduate Program in Pharmaceutical Sciences, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey , Piscataway, New Jersey 08854, United States
| | - Renyi Wu
- Center for Cancer Prevention Research, ‡Department of Pharmaceutics, §Graduate Program in Pharmaceutical Sciences, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey , Piscataway, New Jersey 08854, United States
| | - Anne Yuqing Yang
- Center for Cancer Prevention Research, ‡Department of Pharmaceutics, §Graduate Program in Pharmaceutical Sciences, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey , Piscataway, New Jersey 08854, United States
| | - John Gaspar
- Center for Cancer Prevention Research, ‡Department of Pharmaceutics, §Graduate Program in Pharmaceutical Sciences, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey , Piscataway, New Jersey 08854, United States
| | - Ah-Ng Tony Kong
- Center for Cancer Prevention Research, ‡Department of Pharmaceutics, §Graduate Program in Pharmaceutical Sciences, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey , Piscataway, New Jersey 08854, United States
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The inhibiting activity of meadowsweet extract on neurocarcinogenesis induced transplacentally in rats by ethylnitrosourea. J Neurooncol 2016; 131:459-467. [PMID: 27838807 DOI: 10.1007/s11060-016-2323-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 11/08/2016] [Indexed: 10/20/2022]
Abstract
Inhibitory activity of a decoction of meadowsweet, given postnatally, was studied in rats at risk for neurogenic and renal tumors initiated by transplacental exposure to ethylnitrosourea (ENU). Chemical analysis of ethanol and aqueous extracts of meadowsweet has shown high content of biologically active flavonoids and tannins. Pregnant rats of LIO strain were given a single i.v. injection of ENU, 75 mg/kg, оn the 21st day of gestation. After weaning at 3 weeks after birth, the offspring were divided into two groups: the first was a positive control (ENU), while rats in the second group (ENU + meadowsweet) were given daily a decoction of meadowsweet as drinking water throughout their lifetime. All rats of the first group (ENU) developed multiple malignant tumors, which occurred in brain (86%), spinal cord (43%), peripheral and cranial nerves (29%) and in kidney (31%). More than one-third of CNS tumors were oligodendrogliomas. Mixed gliomas (oligoastrocytomas) occurred less frequently. All other types including astrocytomas, glioblastomas, and ependymomas were rare. All PNS tumors were neurinomas (schwannomas). The spectrum of tumors was similar in rats of the second group. Postnatal consumption of meadowsweet significantly reduced number of tumor-bearing rats (by 1.2 times), the incidence and multiplicity of CNS tumors (brain-by 2.0 and 2.1 times, respectively; spinal cord-by 3.1 and 3.0 times, respectively) and significantly increased latency period, compared to rats of the first group. No significant reduction in PNS or renal tumors was seen in rats given meadowsweet. Meadowsweet extract can be considered an effective cancer preventive agent especially as a neurocarcinogenesis inhibitor.
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