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Kim MS, Seo JY, Oh J, Jang YK, Lee CH, Kim JS. Neuroprotective Effect of Halophyte Salicornia herbacea L. Is Mediated by Activation of Heme Oxygenase-1 in Mouse Hippocampal HT22 Cells. J Med Food 2017; 20:140-151. [PMID: 28146411 DOI: 10.1089/jmf.2016.3829] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Salicornia herbacea L. (glasswort, tungtungmadi in Korean), a halophyte that grows in salt marshes and muddy seashores along the western coast of Korea, has been used as a seasoning vegetable and a folk medicine for intestinal ailments, nephropathy, and hepatitis. As the salt-tolerant herb was reported to contain antioxidants, including tungtungmadic acid, quercetin, and chlorogenic acid, we hypothesized that the ethanolic extract of S. herbacea L. (SH extract) enriched with antioxidative compounds will have neuroprotective activity. The herbal extract and its methylene chloride (MC) fraction showed a strong protective effect against glutamate-induced cell death in murine hippocampal HT22 cells. In addition, SH extract and MC fraction not only scavenged reactive oxygen species efficiently but also caused nuclear translocation of nuclear factor (erythroid-derived 2)-like 2 and subsequently significant induction of antioxidant enzymes such as NAD(P)H:quinone oxidoreductase, heme oxygenase 1 (HO-1), and glutathione reductase. Inhibition of the antioxidant enzyme HO-1 by tin protoporphyrin abolished the neuroprotective effect of the SH extract, suggesting an important role of HO-1 in protection against glutamate-induced neural damage. Metabolite profiling for ethanolic extract and solvent fractions of the herb suggested that diosmetin and a few unidentified compounds were responsible for the neuroprotective effect. Taken together, SH extract and its MC fraction exhibited a neuroprotective effect through Nrf2-mediated induction of antioxidant enzymes, such as HO-1, and warrant further in vivo and clinical studies to confirm its effects and potentially develop a neuroprotective salt substitute or dietary supplement.
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Affiliation(s)
- Min Sun Kim
- 1 School of Food Science and Biotechnology and BK21 Plus Program, Kyungpook National University , Daegu, Republic of Korea
| | - Ji Yeon Seo
- 1 School of Food Science and Biotechnology and BK21 Plus Program, Kyungpook National University , Daegu, Republic of Korea
| | - Jisun Oh
- 1 School of Food Science and Biotechnology and BK21 Plus Program, Kyungpook National University , Daegu, Republic of Korea
| | - Yu Kyung Jang
- 2 Department of Bioscience and Biotechnology, Konkuk University , Seoul, Republic of Korea
| | - Choong Hwan Lee
- 2 Department of Bioscience and Biotechnology, Konkuk University , Seoul, Republic of Korea
| | - Jong-Sang Kim
- 1 School of Food Science and Biotechnology and BK21 Plus Program, Kyungpook National University , Daegu, Republic of Korea
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102
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Qiu Y, Ai PF, Song JJ, Liu C, Li ZW. Total Flavonoid Extract from Abelmoschus manihot (L.) Medic Flowers Attenuates d-Galactose-Induced Oxidative Stress in Mouse Liver Through the Nrf2 Pathway. J Med Food 2017; 20:557-567. [PMID: 28472605 DOI: 10.1089/jmf.2016.3870] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Abelmoschus manihot (L.) Medic is an edible hibiscus that is rich in flavonoids, and its use as Chinese herbal medicine for the treatment of diseases and health maintenance dates back to ancient times. The chemical compositions of total flavonoid of A. manihot (L.) Medic flower extract (TFAE) were identified and determined by high performance liquid chromatography (HPLC). The effects of TFAE on antioxidative activities in a d-galactose (d-gal)-induced mouse model and Nrf2-mediated antioxidant responses were evaluated. Male Kunming mice were randomly divided into normal control group, d-gal aging model group, d-gal+ascorbic acid group that served as a positive control, and d-gal+TFAE (40, 80, and 160 mg TFAE/kg) group. After 42 days, the antioxidant effects of these treatments were determined by biochemical studies, Western blotting, quantitative real-time polymerase chain reaction, and histological analysis. The results showed that the groups administered TFAE exhibited significant elevation in liver activities of antioxidant enzymes, including catalase (CAT), glutathione peroxidase (GPx), superoxide dismutase (SOD), and total antioxidant capacity (T-AOC), and decreased malondialdehyde (MDA) production in a dose-dependent manner compared with the d-gal-induced model group. Expression of Nrf2 and its target antioxidants (HO-1 and NQO1) was manifestly increased by TFAE treatment. TFAE also increased mRNA expression of GPx, SOD, and CAT and decreased tumor necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β). Furthermore, the microstructure of livers in TFAE-administered mice was obviously improved as compared with the d-gal model group. These results suggest that TFAE protects mice against d-gal-induced oxidative stress, and the effect is related to the activation of Nrf2 signaling.
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Affiliation(s)
- Yan Qiu
- 1 College of Bioscience and Bioengineering, Hebei University of Science and Technology , Shijiazhuang, China
| | - Peng-Fei Ai
- 1 College of Bioscience and Bioengineering, Hebei University of Science and Technology , Shijiazhuang, China
| | - Jian-Jun Song
- 1 College of Bioscience and Bioengineering, Hebei University of Science and Technology , Shijiazhuang, China
| | - Chang Liu
- 1 College of Bioscience and Bioengineering, Hebei University of Science and Technology , Shijiazhuang, China
| | - Zhi-Wei Li
- 2 College of Chemical and Pharmaceutial Engineering, Hebei University of Science and Technology , Shijiazhuang, China
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103
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Wang FY, Xi QY, Huang KB, Tang XM, Chen ZF, Liu YC, Liang H. Crystal structure, cytotoxicity and action mechanism of Zn(II)/Mn(II) complexes with isoquinoline ligands. J Inorg Biochem 2017; 169:23-31. [DOI: 10.1016/j.jinorgbio.2017.01.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 12/17/2016] [Accepted: 01/03/2017] [Indexed: 01/02/2023]
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104
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Intracellular antioxidant activities of selected cereal phenolic extracts and mechanisms underlying the protective effects of adlay phenolic extracts on H 2 O 2 -induced oxidative stress in human erythrocytes. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.01.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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105
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Wang G, Lei Z, Zhong Q, Wu W, Zhang H, Min T, Wu H, Lai F. Enrichment of caffeic acid in peanut sprouts and evaluation of its in vitro effectiveness against oxidative stress-induced erythrocyte hemolysis. Food Chem 2017; 217:332-341. [DOI: 10.1016/j.foodchem.2016.07.126] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 07/21/2016] [Accepted: 07/21/2016] [Indexed: 12/16/2022]
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106
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Zhang H, Yin M, Huang L, Wang J, Gong L, Liu J, Sun B. Evaluation of the Cellular and Animal Models for the Study of Antioxidant Activity: A Review. J Food Sci 2017; 82:278-288. [PMID: 28117894 DOI: 10.1111/1750-3841.13605] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 11/21/2016] [Accepted: 12/05/2016] [Indexed: 02/06/2023]
Abstract
The mechanisms of antioxidant activities of phytochemicals are highly complex, so various methods to study them have been developed. However, the diverse available methods show inconsistent results. Different stressors, cell models, and animal models have been used to evaluate the antioxidant properties of phytochemicals. However, the literature still lacks a summary of the effects of different stressors, cell models, and animal models on the evaluation of antioxidant activities. Therefore, the mechanisms of action of different oxidative stimuli and the characteristics of the available cell models and animal models are summarized in this review.
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Affiliation(s)
- Huijuan Zhang
- Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business Univ. (BTBU), Beijing, 100048, China
| | - Meng Yin
- Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business Univ. (BTBU), Beijing, 100048, China
| | - Lianyan Huang
- Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business Univ. (BTBU), Beijing, 100048, China
| | - Jing Wang
- Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business Univ. (BTBU), Beijing, 100048, China.,Beijing Engineering and Technology Research Center of Food Additives, Beijing, 100048, China.,Key Laboratory of Space Nutrition and Food Engineering, Beijing, 100094, China
| | - Lingxiao Gong
- Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business Univ. (BTBU), Beijing, 100048, China
| | - Jie Liu
- Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business Univ. (BTBU), Beijing, 100048, China
| | - Baoguo Sun
- Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business Univ. (BTBU), Beijing, 100048, China
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107
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Xu M, Shao Q, Ye S, Li S, Wu M, Ding M, Li Y. Simultaneous Extraction and Identification of Phenolic Compounds in Anoectochilus roxburghii Using Microwave-Assisted Extraction Combined with UPLC-Q-TOF-MS/MS and Their Antioxidant Activities. FRONTIERS IN PLANT SCIENCE 2017; 8:1474. [PMID: 28883828 PMCID: PMC5573714 DOI: 10.3389/fpls.2017.01474] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 08/08/2017] [Indexed: 05/05/2023]
Abstract
This study used MAE and RSM to extract phenolic compounds from Anoectochilus roxburghii, and the optimum conditions defined by the model to give an optimum yield of 1.31%. The antioxidant activity in vitro showed when the concentration of phenolic compounds was reached 1 mg mL-1, the clearance rates were 82.58% for DPPH and 97.62% for ABTS+. In vivo antioxidant experiments used D-galactose to build oxidative damage in healthy Kunming mice. The result showed that the extractions of A. roxburghii can improve the antioxidant ability and the medium and low dose groups had better ability to scavenge free radicals. The UPLC-Q-TOF-MS/MS was developed to identify 21 kinds of phenolic compounds by molecular mass, ms/ms fragmentation, as well as retention time. The result showed that the phenolic compounds of A. roxburghii had significant potential as a natural antioxidant to promote health and to reduce the risk of disease.
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Affiliation(s)
- Mengjie Xu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F UniversityHangzhou, China
- The Department of Traditional Chinese Medicine, Zhejiang A & F UniversityHangzhou, China
| | - Qingsong Shao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F UniversityHangzhou, China
- The Department of Traditional Chinese Medicine, Zhejiang A & F UniversityHangzhou, China
- *Correspondence: Qingsong Shao,
| | - Shenyi Ye
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F UniversityHangzhou, China
- The Department of Traditional Chinese Medicine, Zhejiang A & F UniversityHangzhou, China
| | - Shuailing Li
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F UniversityHangzhou, China
- The Department of Traditional Chinese Medicine, Zhejiang A & F UniversityHangzhou, China
| | - Mei Wu
- Jinhua Academy of Agricultural SciencesJinhua, China
| | - Mozhi Ding
- Jinhua Jinglong Biological Technology Co., Ltd.Jinhua, China
- Zhejiang Jiangkang Agricultural Science and Technology Co., Ltd.Jinhua, China
| | - Yanjing Li
- State Key Laboratory of Subtropical Silviculture, Zhejiang A & F UniversityHangzhou, China
- The Department of Traditional Chinese Medicine, Zhejiang A & F UniversityHangzhou, China
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108
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Liu H, Ma J, Wu H. Detoxifying effects of ultrafiltration fractions of Dendrobium aphyllum peptides on chemical and AAPH-induced oxidative stress. RSC Adv 2017. [DOI: 10.1039/c7ra08957k] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The antioxidative peptide fraction extracted from Dendrobium aphyllum displayed good detoxifying effects on chemical and AAPH-induced oxidative stress.
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Affiliation(s)
- Huifan Liu
- College of Food Science and Engineering
- South China University of Technology
- Department of Food Science and Engineering
- Guangzhou
- China
| | - Juanjuan Ma
- College of Food Science and Engineering
- South China University of Technology
- Department of Food Science and Engineering
- Guangzhou
- China
| | - Hui Wu
- College of Food Science and Engineering
- South China University of Technology
- Department of Food Science and Engineering
- Guangzhou
- China
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109
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Qiao J, Liu J, Jia K, Li N, Liu B, Zhang Q, Zhu R. Diosmetin triggers cell apoptosis by activation of the p53/Bcl-2 pathway and inactivation of the Notch3/NF-κB pathway in HepG2 cells. Oncol Lett 2016; 12:5122-5128. [PMID: 28101238 PMCID: PMC5228289 DOI: 10.3892/ol.2016.5347] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 10/11/2016] [Indexed: 12/02/2022] Open
Abstract
Diosmetin (DIOS), a flavonoid compound, is abundant in Citrus limon. Emerging studies have shown that DIOS is an effective compound implicated in multiple types of cancer. However, whether DIOS serves a role in hepatocellular carcinoma (HCC) is still obscure. HepG2 cells were used in the present study, and it was observed that DIOS exhibited antitumor activity against liver cancer cells. Western blotting was performed to evaluate cell apoptosis and survival-associated proteins, and the results demonstrated that DIOS treatment resulted in the activation of the p53-dependent apoptosis pathway. Our results revealed that DIOS caused inhibition of the nuclear factor (NF)-κB signaling pathway and downregulation of Notch3 receptor. Furthermore, by using small hairpin RNA-Notch3, it was confirmed that DIOS inhibited the NF-κB signaling pathway by inactivation of Notch3. In conclusion, the present results demonstrated that DIOS triggered cell apoptosis by activation of the p53 signaling pathway and inhibited the NF-κB cell survival pathway by downregulation of Notch3 receptor expression. DIOS is a potential agent for prevention of HCC.
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Affiliation(s)
- Jie Qiao
- Laboratory of Hepatobiliary Surgery, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Jie Liu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Kaiqiao Jia
- Laboratory of Hepatobiliary Surgery, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Ning Li
- Laboratory of Hematology, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Bin Liu
- Laboratory of Hepatobiliary Surgery, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Qingyu Zhang
- Laboratory of Hepatobiliary Surgery, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Runzhi Zhu
- Laboratory of Hepatobiliary Surgery, Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
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110
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Zhang M, Zhang H, Li H, Lai F, Li X, Tang Y, Min T, Wu H. Antioxidant Mechanism of Betaine without Free Radical Scavenging Ability. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:7921-7930. [PMID: 27677203 DOI: 10.1021/acs.jafc.6b03592] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Betaine (BET) is a native compound widely studied as an antioxidant in agriculture and human health. However, the antioxidant mechanism of BET remains unclear. In this research, radical scavenging assays showed that BET had little free radical scavenging activity. However, the antioxidant activity of BET was confirmed by cellular antioxidant activity (CAA) and erythrocyte hemolysis assays. The results of quantitative PCR (qPCR) and enzyme activity determination kits showed that the antioxidant activity of BET was not due to the gene expression and activity of antioxidases. High-pressure liquid chromatography (HPLC) assessment of the effect of BET on sulfur-containing amino acid metabolism showed that BET increased the levels of nonenzymatic antioxidants,S-adenosylmethionine (SAM) and methionine (p < 0.05), via the regulation of the methionine-omocysteine cycle. Additionally, the three methyl groups of BET were found to play a key role in its antioxidant activity. The possible reason was that because of the hydrophobicity of the three methyl groups and hydrophilicity of the carboxyl of BET, a tight protective membrane was formed around cells to prevent oxidative stress inducer from inducing ROS generation and cell damage. In conclusion, the antioxidant mechanism of BET was found to enhance nonenzymatic antioxidant defenses via the methionine-homocysteine cycle and form a protective membrane around cells.
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Affiliation(s)
- Mengmeng Zhang
- College of Food Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, China
| | - Hong Zhang
- College of Food Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, China
| | - Huixian Li
- College of Food Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, China
| | - Furao Lai
- College of Food Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, China
| | - Xiaofeng Li
- College of Food Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, China
| | - Yuqian Tang
- College of Food Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, China
| | - Tian Min
- College of Food Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, China
| | - Hui Wu
- College of Food Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, China
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111
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Liu J, Ren H, Liu B, Zhang Q, Li M, Zhu R. Diosmetin inhibits cell proliferation and induces apoptosis by regulating autophagy via the mammalian target of rapamycin pathway in hepatocellular carcinoma HepG2 cells. Oncol Lett 2016; 12:4385-4392. [PMID: 28101201 PMCID: PMC5228182 DOI: 10.3892/ol.2016.5301] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 08/26/2016] [Indexed: 12/13/2022] Open
Abstract
Hepatocellular carcinoma (HCC), which is a type of malignant tumor, is the fifth most common cancer in men and ninth in women worldwide. The aim of the present study was to investigate the antitumor effect of diosmetin (DIOS) in hepatocellular carcinoma HepG2 cells. The proliferation, apoptosis and autophagy rates of HepG2 cells were measured following treatment with DIOS. The effects of DIOS treatment on HepG2 cell proliferation and apoptosis rates were analyzed using MTT assays and Annexin V staining, respectively. The effect of DIOS treatment on autophagy levels was assessed using transmission electron microscopy, green fluorescent protein (GFP)-microtubule-associated protein 1 light chain (LC3) transfection and LysoTracker Red staining. Furthermore, bafilomycin A1 (BA1), an autophagy inhibitor, was used to assess the association between DIOS and cell autophagy, proliferation and apoptosis. In addition, the expression of autophagy-related proteins [mammalian target of rapamycin (mTOR), phosphatidylinositol 3-kinase, P70S6K, phosphoinositide-dependent kinase-1, extracellular signal-regulated kinase, 5′-AMP-activated protein kinase and Akt] and apoptosis-related proteins [B-cell lymphoma (Bcl)-2-associated X protein, Bak, p53, Bcl-2 and caspase-3] were analyzed by western blotting. The results revealed that DIOS significantly inhibited proliferation (P<0.01) and induced apoptosis (P<0.001) in HepG2 cells. It was also demonstrated that DIOS triggered autophagy by regulating the mTOR pathway in HepG2 cells. Notably, following treatment of HepG2 cells with the autophagy inhibitor, BA1, the expression of apoptosis-related proteins, including Bax, Bak and p53, were significantly decreased (P<0.05), and cell viability was recovered to a certain extent. In conclusion, DIOS inhibits cell proliferation and induces apoptosis in HepG2 cells via regulation of the mTOR pathway. Thus, the results of the current study indicate that DIOS may present a potential therapeutic agent for HCC treatment.
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Affiliation(s)
- Jie Liu
- Laboratory of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Zhanjiang, Guangdong 524001, P.R. China
| | - Hao Ren
- Laboratory of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Zhanjiang, Guangdong 524001, P.R. China
| | - Bin Liu
- Laboratory of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Zhanjiang, Guangdong 524001, P.R. China
| | - Qingyu Zhang
- Laboratory of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Zhanjiang, Guangdong 524001, P.R. China
| | - Mingyi Li
- Laboratory of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Zhanjiang, Guangdong 524001, P.R. China
| | - Runzhi Zhu
- Laboratory of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Zhanjiang, Guangdong 524001, P.R. China
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112
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Wen L, Zheng G, You L, Abbasi AM, Li T, Fu X, Liu RH. Phytochemical profiles and cellular antioxidant activity of Malus doumeri (bois) chevalier on 2,2′-azobis (2-amidinopropane) dihydrochloride (ABAP)-induced oxidative stress. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.06.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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113
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Hu P, Song W, Shan Y, Du M, Huang M, Song C, Zhang L. Lactobacillus paracasei subsp. paracasei M5L induces cell cycle arrest and calreticulin translocation via the generation of reactive oxygen species in HT-29 cell apoptosis. Food Funct 2016; 6:2257-65. [PMID: 26068306 DOI: 10.1039/c5fo00248f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Lactobacillus paracasei subsp. paracasei M5L (L. paracasei M5L) was isolated and co-cultured with HT-29 colon cancer cells to study its anti-colorectal cancer effects and mechanism. Using the MTT assay we found that L. paracasei M5L significantly inhibits HT-29 cell proliferation. Morphological and biochemical characteristics of apoptosis were observed and confirmed by hematoxylin and eosin (HE) staining and transmission electron microscopy (TEM). Lactobacilli could change the cell cycle distribution and induce calreticulin (CRT) translocation from the endoplasmic reticulum to the surface of the cytomembrane. We also determine that vast reactive oxygen species (ROS) were generated, while the activities of superoxide dismutase (SOD) and catalase (CAT) were noticeably diminished following L. paracasei M5L treatment. This study reveals that L. paracasei M5L induces apoptosis in HT-29 cells through ROS generation followed by CRT accompanied endoplasmic reticulum (ER) stress and S phase arrest. These results provide new insights into the possible molecular mechanism of L. paracasei M5L as a novel probiotic with the potential for further application.
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Affiliation(s)
- Panpan Hu
- Department of Food Science and Engineering, Harbin Institute of Technology, 73# Huanghe road, Nangang District, Harbin, 150090, China.
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114
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Ge A, Ma Y, Liu YN, Li YS, Gu H, Zhang JX, Wang QX, Zeng XN, Huang M. Diosmetin prevents TGF-β1-induced epithelial-mesenchymal transition via ROS/MAPK signaling pathways. Life Sci 2016; 153:1-8. [PMID: 27101925 DOI: 10.1016/j.lfs.2016.04.023] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 04/10/2016] [Accepted: 04/15/2016] [Indexed: 11/17/2022]
Abstract
AIMS Epithelial-mesenchymal transition (EMT) plays a critical role in airway repair and remodeling in many respiratory diseases such as asthma and pulmonary fibrosis. The flavone aglycone, diosmetin, possesses anti-remodeling activity in a murine model of chronic asthma, but little is known about its effects on EMT. Herein, we investigated whether diosmetin inhibits transforming growth factor-β1 (TGF-β1)-induced EMT with underlying mechanisms in human bronchial epithelial (HBE) cells. MAIN METHODS HBE cells were incubated with TGF-β1 (10ng/ml), either alone or in combination with diosmetin for indicated times. We measured reactive oxygen species (ROS) levels using FACScan and immunofluorescent assays. We assessed protein expression of NADPH oxidase 4 (NOX4), superoxide dismutase (SOD), catalase, Akt, Erk, p38, and phosphorylation levels of Akt, Erk and p38 by Western blot analysis. KEY FINDINGS TGF-β1 promoted EMT and ROS generation in HBE cells. Diosmetin significantly suppressed TGF-β1-induced increases in cell migration and altered N-cadherin, E-cadherin, and α-smooth muscle actin expression. In addition, diosmetin prevented TGF-β1-induced intracellular ROS generation, down-regulated NOX4, and up-regulated SOD and catalase expression. Furthermore, diosmetin remarkably inhibited TGF-β1-induced phosphorylation of phosphoinositide 3-kinase (PI3K)/Akt and mitogen activated protein kinase (MAPK) pathways in HBE cells. SIGNIFICANCE Our results demonstrate for the first time that diosmetin alleviates TGF-β1-induced EMT by inhibiting ROS generation and inactivating PI3K/Akt and MAPK pathways. Our findings revealed a new role for diosmetin in reducing airway remodeling and fibrogenesis.
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Affiliation(s)
- Ai Ge
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China
| | - Yuan Ma
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China
| | - Ya-Nan Liu
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China; Department of Respiratory & Critical Care Medicine, The Affiliated Hospital of Xuzhou Medical University, 99 Huaihai West Road, Xuzhou, Jiangsu 221000, China
| | - Ye-Shan Li
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China; Department of Respiratory & Critical Care Medicine, The Second People's Hospital of Wuhu, 263 Jiuhuashan Road, Wuhu, Anhui 241001, China
| | - Hao Gu
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China
| | - Jia-Xiang Zhang
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China
| | - Qin-Xue Wang
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China
| | - Xiao-Ning Zeng
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China.
| | - Mao Huang
- Department of Respiratory & Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China.
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115
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Liao W, Zhang R, Dong C, Yu Z, Ren J. Novel walnut peptide-selenium hybrids with enhanced anticancer synergism: facile synthesis and mechanistic investigation of anticancer activity. Int J Nanomedicine 2016; 11:1305-21. [PMID: 27143875 PMCID: PMC4841427 DOI: 10.2147/ijn.s92257] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
This contribution reports a facile synthesis of degreased walnut peptides (WP1)-functionalized selenium nanoparticles (SeNPs) hybrids with enhanced anticancer activity and a detailed mechanistic evaluation of its superior anticancer activity. Structural and chemical characterizations proved that SeNPs are effectively capped with WP1 via physical absorption, resulting in a stable hybrid structure with an average diameter of 89.22 nm. A panel of selected human cancer cell lines demonstrated high susceptibility toward WP1-SeNPs and displayed significantly reduced proliferative behavior. The as-synthesized WP1-SeNPs exhibited excellent selectivity between cancer cells and normal cells. The targeted induction of apoptosis in human breast adenocarcinoma cells (MCF-7) was confirmed by the accumulation of arrested S-phase cells, nuclear condensation, and DNA breakage. Careful investigations revealed that an extrinsic apoptotic pathway can be attributed to the cell apoptosis and the same was confirmed by activation of the Fas-associated with death domain protein and caspases 3, 8, and 9. In addition, it was also understood that intrinsic apoptotic pathways including reactive oxygen species generation, as well as the reduction in mitochondrial membrane potential, are also involved in the WP1-SeNP-induced apoptosis. This suggested the involvement of multiple apoptosis pathways in the anticancer activity. Our results indicated that WP1-SeNP hybrids with Se core encapsulated in a WP1 shell could be a highly effective method to achieve anticancer synergism. Moreover, the great potential exhibited by WP1-SeNPs could make them an ideal candidate as a chemotherapeutic agent for human cancers, especially for breast cancer.
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Affiliation(s)
- Wenzhen Liao
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong, People's Republic of China
| | - Rong Zhang
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong, People's Republic of China
| | - Chenbo Dong
- Civil and Environmental Engineering, Rice University, Houston, TX, USA
| | - Zhiqiang Yu
- School of Pharmaceutical Science, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Jiaoyan Ren
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, Guangdong, People's Republic of China
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116
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Liu D, Zhang T, Chen Z, Wang Y, Ma S, Liu J, Liu J. The beneficial effect of ginsenosides extracted by pulsed electric field against hydrogen peroxide-induced oxidative stress in HEK-293 cells. J Ginseng Res 2016; 41:169-179. [PMID: 28413321 PMCID: PMC5386122 DOI: 10.1016/j.jgr.2016.02.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 01/30/2016] [Accepted: 02/26/2016] [Indexed: 11/18/2022] Open
Abstract
Background Ginsenosides are the main pharmacological components of Panax ginseng root, which are thought to be primarily responsible for the suppressing effect on oxidative stress. Methods 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity and oxygen radical absorption capacity were applied to evaluate the antioxidant activities of the ginsenosides. Human embryonic kidney 293 (HEK-293) cells were incubated with ginsenosides extracted by pulsed electric field (PEF) and solvent cold soak extraction (SCSE) for 24 h and then the injury was induced by 40μM H2O2. The cell viability and surface morphology of HEK-293 cells were studied using MTS assay and scanning electron microscopy, respectively. Dichloro-dihydro-fluorescein diacetate fluorescent probe assay was used to measure the level of intracellular reactive oxygen species. The intracellular antioxidant activities of ginsenosides were evaluated by cellular antioxidant activity assay in HepG2 cells. Results The PEF extracts displayed the higher 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity and stronger oxygen radical absorption capacity (with an oxygen radical absorption capacity value of 14.48 ± 4.04μM TE per μg/mL). The HEK-293 cell model also suggested that the protective effect of PEF extracts was dose-dependently greater than SCSE extracts. Dichloro-dihydro-fluorescein diacetate assay further proved that PEF extracts are more active (8% higher than SCSE extracts) in reducing intracellular reactive oxygen species accumulation. In addition, scanning electron microscopy images showed that the HEK-293 cells, which were treated with PEF extracts, maintained more intact surface morphology. Cellular antioxidant activity values indicated that ginsenosides extracted by PEF had stronger cellular antioxidant activity than SCSE ginsenosides extracts. Conclusion The present study demonstrated the antioxidative effect of ginsenosides extracted by PEF in vitro. Furthermore, rather than SCSE, PEF may be more useful as an alternative extraction technique for the extraction of ginsenosides with enhanced antioxidant activity.
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Affiliation(s)
| | | | | | | | | | | | - Jingbo Liu
- Corresponding author. Laboratory of Nutrition and Functional Food, College of Food Science and Engineering, Jilin University, No. 5333 Xi' an Road, Changchun, 130062, Jilin, China.Laboratory of Nutrition and Functional FoodCollege of Food Science and EngineeringJilin UniversityNo. 5333 Xi' an RoadChangchunJilin130062China
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117
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Structure–activity relationship of antioxidant dipeptides: Dominant role of Tyr, Trp, Cys and Met residues. J Funct Foods 2016. [DOI: 10.1016/j.jff.2015.12.003] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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118
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Shen Y, Zhang H, Cheng L, Wang L, Qian H, Qi X. In vitro and in vivo antioxidant activity of polyphenols extracted from black highland barley. Food Chem 2016; 194:1003-12. [DOI: 10.1016/j.foodchem.2015.08.083] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 08/18/2015] [Accepted: 08/20/2015] [Indexed: 12/17/2022]
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119
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LIU JIE, WEN XIAOJUN, LIU BIN, ZHANG QINGYU, ZHANG JINGJING, MIAO HUILAI, ZHU RUNZHI. Diosmetin inhibits the metastasis of hepatocellular carcinoma cells by downregulating the expression levels of MMP-2 and MMP-9. Mol Med Rep 2016; 13:2401-8. [PMID: 26847170 PMCID: PMC4768952 DOI: 10.3892/mmr.2016.4872] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 12/23/2015] [Indexed: 12/22/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most malignant types of tumor worldwide with a high rate of mortality. Diosmetin (DIOS) exhibits various activities, including anticancer activities. However, the role of DIOS in the metastasis of HCC, and its underlying molecular mechanism, remain to be fully elucidated. In the present study, the antimetastatic effects of DIOS were investigated in SK‑HEP‑1 and MHcc97H HCC cell lines. Cell proliferation, wound healing, motility, invasion and adhesion capacities were examined to evaluate the inhibitory effect of DIOS on the metastasis of HCC cells. Cell viability was detected using an MTT assay in order to verify the inhibitory effect of DIOS on the proliferation of HCC cells. Cell migration was assessed using would healing and motility assays in order to verify the inhibitory effect of DIOS on the migration of HCC cells. Cell invasion and adhesion assays were performed in order to verify the inhibitory effect of DIOS on the invasion and adhesion of HCC cells. Matrix metalloproteinase (MMP)‑2/9, proteins of the mitogen‑activated protein kinase (MAPK) pathway (c‑Jun N‑terminal kinase, extracellular signal‑regulated kinase and p38 MAPK) and protein kinase C‑δ were detected in order to verify the potential molecular mechanisms of DIOS in the inhibition of the metastasis of HCC cells. DIOS was observed to inhibit the metastasis of SK‑HEP‑1 and MHcc97H cells by downregulating the expression of MMP‑2/9 via the PKC/MAPK/MMP pathways. DIOS also inhibited the migration and invasion of the HCC cells, and may serve as a potential candidate agent for the prevention of HCC metastasis.
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Affiliation(s)
| | | | - BIN LIU
- Laboratory of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Zhanjiang, Guangdong 524001, P.R. China
| | - QINGYU ZHANG
- Laboratory of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Zhanjiang, Guangdong 524001, P.R. China
| | - JINGJING ZHANG
- Laboratory of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Zhanjiang, Guangdong 524001, P.R. China
| | - HUILAI MIAO
- Laboratory of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Zhanjiang, Guangdong 524001, P.R. China
| | - RUNZHI ZHU
- Laboratory of Hepatobiliary Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang Key Laboratory of Hepatobiliary Diseases, Zhanjiang, Guangdong 524001, P.R. China
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120
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Liao W, Chen L, Ma X, Jiao R, Li X, Wang Y. Protective effects of kaempferol against reactive oxygen species-induced hemolysis and its antiproliferative activity on human cancer cells. Eur J Med Chem 2016; 114:24-32. [PMID: 26974372 DOI: 10.1016/j.ejmech.2016.02.045] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Revised: 02/01/2016] [Accepted: 02/18/2016] [Indexed: 12/20/2022]
Abstract
The protective effects of kaempferol against reactive oxygen species (ROS)-induced hemolysis and its antiproliferative activity on human cancer cells were evaluated in this study. Kaempferol exhibited strong cellular antioxidant ability (CAA) with a CAA value of 59.80 ± 0.379 μM of quercetin (QE)/100 μM (EC50 = 7.74 ± 0.049 μM). Pretreatment with kaempferol significantly attenuated the ROS-induced hemolysis of human erythrocyte (87.4% hemolysis suppressed at 100 μg/mL) and reduced the accumulation of toxic lipid peroxidation product malondialdehyde (MDA). The anti-hemolytic activity of kaempferol was mainly through scavenging excessive ROS and preserving the intrinsic antioxidant enzymes (superoxide dismutase, SOD; catalase, CAT; and glutathione peroxidase, GPx) activities in normal levels. Additionally, kaempferol showed significant antiproliferative activity on a panel of human cancer cell lines including human breast carcinoma (MCF-7) cells, human stomach carcinoma (SGC-7901) cells, human cervical carcinoma (Hela) cells and human lung carcinoma (A549) cells. Kaemperol induced apoptosis of MCF-7 cells accompanied with nuclear condensation and mitochondria dysfunction.
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Affiliation(s)
- Wenzhen Liao
- Department of Food Science and Engineering, Jinan University, 601 West, Huangpu Road, Guangzhou, 510632, China; College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, 510640, China
| | - Luying Chen
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou, 510640, China
| | - Xiang Ma
- Research School of Chemistry, The Australian National University, Canberra ACT 2601, Australia
| | - Rui Jiao
- Department of Food Science and Engineering, Jinan University, 601 West, Huangpu Road, Guangzhou, 510632, China
| | - Xiaofeng Li
- Department of Food Science and Engineering, Jinan University, 601 West, Huangpu Road, Guangzhou, 510632, China
| | - Yong Wang
- Department of Food Science and Engineering, Jinan University, 601 West, Huangpu Road, Guangzhou, 510632, China.
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121
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Jiang DQ, Li MX, Ma YJ, Wang Y, Wang Y. Efficacy and safety of prostaglandin E1 plus lipoic acid combination therapy versus monotherapy for patients with diabetic peripheral neuropathy. J Clin Neurosci 2016; 27:8-16. [PMID: 26775115 DOI: 10.1016/j.jocn.2015.07.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 04/29/2015] [Accepted: 07/04/2015] [Indexed: 12/29/2022]
Abstract
The aim of this report was to evaluate the efficacy and safety of prostaglandin E1 (PGE1) plus lipoic acid (LA) for the treatment of diabetic peripheral neuropathy (DPN) compared with that of PGE1 or LA monotherapy. Randomized controlled trials (RCT) published up to 3 August 2014 were reviewed. A random or fixed effect model was used to analyze outcomes expressed as risk ratios (RR) or mean difference (MD) with a 95% confidence interval (CI). I(2) statistic was used to assess heterogeneity. Subgroup and sensitivity analyses were performed. The outcomes measured were as follows: clinical efficacy, median motor nerve conduction velocity (MNCV), median sensory nerve conduction velocity (SNCV), peroneal MNCV, peroneal SNCV and adverse effects. Thirty-one RCT with 2676 participants were included. Clinical efficacy of PGE1+LA combination therapy was significantly better than monotherapy (p<0.00001, RR=1.32, 95% CI 1.26 to 1.38). Compared with monotherapy, PGE1+LA combination therapy led to significant improvements in median MNCV (p<0.00001, MD=4.69, 95% CI 3.16 to 6.23), median SNCV (p<0.00001, MD=5.46, 95% CI 4.04 to 6.88), peroneal MNCV (p<0.00001, MD=5.19, 95% CI 3.71 to 6.67) and peroneal SNCV (p<0.00001, MD=5.50, 95% CI 3.30 to 7.70). There were no serious adverse events associated with drug intervention. PGE1+LA combination therapy is superior to PGE1 or LA monotherapy for improvement of neuropathic symptoms and nerve conduction velocities in patients with DPN. These findings should be further validated by larger well-designed and high-quality RCT.
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Affiliation(s)
- De-Qi Jiang
- Department of Pharmacy, Zhujiang Hospital of Southern Medical University, Industrial Road No. 253, Haizhu District, Guangzhou 510282, China; Cultivation Base for Key Laboratory of Conservation and Utilization of Rare and Economic Species at Southeast Guangxi, Yulin Normal University, Yulin, China; Department of Biopharmaceutical, School of Life Science and Technology, Yulin Normal University, Yulin, China
| | - Ming-Xing Li
- Department of Pharmacy, Zhujiang Hospital of Southern Medical University, Industrial Road No. 253, Haizhu District, Guangzhou 510282, China
| | - Yan-Jiao Ma
- Department of Pharmacy, Zhujiang Hospital of Southern Medical University, Industrial Road No. 253, Haizhu District, Guangzhou 510282, China
| | - Yan Wang
- Department of Pharmacy, Zhujiang Hospital of Southern Medical University, Industrial Road No. 253, Haizhu District, Guangzhou 510282, China
| | - Yong Wang
- Department of Pharmacy, Zhujiang Hospital of Southern Medical University, Industrial Road No. 253, Haizhu District, Guangzhou 510282, China.
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122
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Rached W, Calhelha RC, Fernandes Â, Carvalho AM, Bennaceur M, Marouf A, Barros L, Santos-Buelga C, Ferreira ICFR. Phytochemical characterization and bioactive properties of Osyris quadripartita Salzm. ex Decne. leaves from Algeria. RSC Adv 2016. [DOI: 10.1039/c6ra11787b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Medicinal plants are sources of bioactive compounds with recognized beneficial effects on human health.
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Affiliation(s)
- Wahiba Rached
- Mountain Research Centre (CIMO)
- ESA
- Polytechnic Institute of Bragança
- 5300-253 Bragança
- Portugal
| | - Ricardo C. Calhelha
- Mountain Research Centre (CIMO)
- ESA
- Polytechnic Institute of Bragança
- 5300-253 Bragança
- Portugal
| | - Ângela Fernandes
- Mountain Research Centre (CIMO)
- ESA
- Polytechnic Institute of Bragança
- 5300-253 Bragança
- Portugal
| | - Ana Maria Carvalho
- Mountain Research Centre (CIMO)
- ESA
- Polytechnic Institute of Bragança
- 5300-253 Bragança
- Portugal
| | - Malika Bennaceur
- Laboratory of Plant Biochemistry and Natural Products
- Department of Biology
- Faculty of Nature and Life Sciences
- University of Oran1 Ahmed Ben Bella
- 31000 Oran
| | | | - Lillian Barros
- Mountain Research Centre (CIMO)
- ESA
- Polytechnic Institute of Bragança
- 5300-253 Bragança
- Portugal
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123
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Song W, Song C, Shan Y, Lu W, Zhang J, Hu P, Wu X, Li L, Guo S. The antioxidative effects of three lactobacilli on high-fat diet induced obese mice. RSC Adv 2016. [DOI: 10.1039/c6ra06389f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, three Lactobacillus strains (L. coryniformis subsp. torquens T3, L. paracasei subsp. paracasei M5 and L. paracasei subsp. paracasei X12) isolated in our laboratory were investigated for antioxidant activity in vitro and in vivo.
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Affiliation(s)
- Wei Song
- Institute of Extreme Environment Nutrition and Protection
- Harbin Institute of Technology
- Harbin 150090
- China
- Department of Food Science and Engineering
| | - Chen Song
- Institute of Extreme Environment Nutrition and Protection
- Harbin Institute of Technology
- Harbin 150090
- China
- Department of Food Science and Engineering
| | - Yujuan Shan
- Institute of Extreme Environment Nutrition and Protection
- Harbin Institute of Technology
- Harbin 150090
- China
- Department of Food Science and Engineering
| | - Weihong Lu
- Institute of Extreme Environment Nutrition and Protection
- Harbin Institute of Technology
- Harbin 150090
- China
- Department of Food Science and Engineering
| | - Jiliang Zhang
- Institute of Extreme Environment Nutrition and Protection
- Harbin Institute of Technology
- Harbin 150090
- China
- Department of Food Science and Engineering
| | - Panpan Hu
- Department of Life Science
- Lvliang University
- Lvliang 033001
- China
| | - Xianfan Wu
- Institute of Extreme Environment Nutrition and Protection
- Harbin Institute of Technology
- Harbin 150090
- China
- Department of Food Science and Engineering
| | - L. Li
- Institute of Extreme Environment Nutrition and Protection
- Harbin Institute of Technology
- Harbin 150090
- China
- Department of Food Science and Engineering
| | - Shouli Guo
- Animal Experiment Center of the Second Affiliated Hospital
- Harbin Medical University
- Harbin 150086
- China
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124
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Liao W, Gu L, Zheng Y, Zhu Z, Zhao M, Liang M, Ren J. Analysis of the quantitative structure–activity relationship of glutathione-derived peptides based on different free radical scavenging systems. MEDCHEMCOMM 2016. [DOI: 10.1039/c6md00006a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present study, eleven glutathione-derived peptides, including Glu-Cys-His, Pro-Leu-Gly, Pro-Cys-Gly, Phe-Lys-Leu, Leu-His-Gly, Lys-Leu-Glu, Lys-Val-His, Tyr-Glu-Gly, Tyr-His-Leu, Gly-Glu-Leu and Gly-Pro-Glu, were designed.
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Affiliation(s)
- Wenzhen Liao
- Department of Food Science and Technology
- College of Food Sciences and Technology
- South China University of Technology
- Guangzhou 510640
- China
| | - Longjian Gu
- Department of Food Science and Technology
- College of Food Sciences and Technology
- South China University of Technology
- Guangzhou 510640
- China
| | - Yamei Zheng
- Department of Food Science and Technology
- College of Food Sciences and Technology
- South China University of Technology
- Guangzhou 510640
- China
| | - Zisheng Zhu
- Department of Food Science and Technology
- College of Food Sciences and Technology
- South China University of Technology
- Guangzhou 510640
- China
| | - Mouming Zhao
- Department of Food Science and Technology
- College of Food Sciences and Technology
- South China University of Technology
- Guangzhou 510640
- China
| | - Ming Liang
- R&D Center
- Infinitus (China) Co., LTD
- Guangzhou 510665
- China
| | - Jiaoyan Ren
- Department of Food Science and Technology
- College of Food Sciences and Technology
- South China University of Technology
- Guangzhou 510640
- China
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125
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Liao W, Yu Z, Lin Z, Lei Z, Ning Z, Regenstein JM, Yang J, Ren J. Biofunctionalization of Selenium Nanoparticle with Dictyophora Indusiata Polysaccharide and Its Antiproliferative Activity through Death-Receptor and Mitochondria-Mediated Apoptotic Pathways. Sci Rep 2015; 5:18629. [PMID: 26686000 PMCID: PMC4685659 DOI: 10.1038/srep18629] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 11/16/2015] [Indexed: 12/23/2022] Open
Abstract
Bio-functionalized nanoparticles with semiconducting/metallic core encapsulated in a bio- or bio-derived materials are promising for applications in biology and especially in cancer diagnostic and healing. In this report, we report a facile, single-step, first-time synthesis and in-situ functionalization strategy for the preparation of monodispersed selenium nanoparticles (SeNPs) functionalized using a novel polysaccharide (DP1) extracted from Dictyophora indusiata (a fungus). The DP1 functionalized SeNPs (DP1-SeNPs), where DP1 is attached to the surface via Se-O bond as well as physic-sorption had, an average diameter of 89 nm, and were highly uniform, extremely stable compared to bare SeNPs. Detailed investigation of the biological properties of DP1-SeNP illustrated that they exhibit unprecedented, enhanced, and selective antiproliferative activity through inducing cell apoptosis confirmed by nuclear condensation, DNA cleavage, and accumulation of S phase cell arrest. The mechanism of the induced apoptosis was found to be a combination of the activation of caspases 3, 8, and 9, the Fas-associated death domain protein (FADD), reactive oxygen species (ROS) overproduction, as well as mitochondrial dysfunction. It is envisioned that the reported DP1-SeNPs will offer a new phase space for high-efficiency anticancer treatment with little side effect.
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Affiliation(s)
- Wenzhen Liao
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Zhiqiang Yu
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Zehua Lin
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Zhuogui Lei
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Zhengxiang Ning
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Joe M. Regenstein
- Department of Food Science, Cornell University, Ithaca, NY, 14853-7201, USA
| | - Jiguo Yang
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, Guangdong, China
| | - Jiaoyan Ren
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, Guangdong, China
- Department of Food Science, Cornell University, Ithaca, NY, 14853-7201, USA
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126
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Shen Z, Shao J, Dai J, Lin Y, Yang X, Ma J, He Q, Yang B, Yao K, Luo P. Diosmetin protects against retinal injury via reduction of DNA damage and oxidative stress. Toxicol Rep 2015; 3:78-86. [PMID: 28959525 PMCID: PMC5615423 DOI: 10.1016/j.toxrep.2015.12.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 12/02/2015] [Accepted: 12/12/2015] [Indexed: 11/15/2022] Open
Abstract
Visual impairment is a global public health problem that needs new candidate drugs. Chrysanthemum is a traditional Chinese drug, famous for its eye-protective function, with an unclear mechanism of action. To determine how chrysanthemum contributes to vision, we identified, for the first time, the component of chrysanthemum, diosmetin (DIO), which acts in protecting the injured retina in an adriamycin (ADR) improving model. We observed that DIO could attenuate the apoptosis of retinal cells in Sprague–Dawley rats and verified this effect in cultured human retinal pigment epithelium (RPE) cells, ARPE-19. Our further study on the mechanism revealed the counteractive effect of DIO on the attenuation of DNA damage and oxidative stress, which occurs in a wide range of retinal disorders. These results collectively promise the potential value of DIO as a retinal-protective agent for disorders that lead to blindness. In addition, we identified, for the first time, the component of chrysanthemum, DIO, which acts in protecting the injured retina.
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Key Words
- ADR, adriamycin
- AMD, age-related macular degeneration
- ATP, adenosine triphosphate
- Apoptosis
- CNV, choroidal neovascularisation
- Chrysanthemum
- DIO, diosmetin
- DNA damage
- Diosmetin
- Diosmetin (PubChem CID5281612)
- Doxorubicin (PubChem CID31703)
- H&E, hematoxylin and eosin
- IC50, inhibition for 50% of the cells
- IVI, intravitreal injection
- Oxidative stress
- PVR, proliferative vitreoretinopathy
- ROS, reactive oxygen species
- RPE, retinal pigment epithelium
- Retinal injury
- Retinal pigment epithelium
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Affiliation(s)
- Zeren Shen
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P.R. China.,Eye Center, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, P.R. China
| | - Jinjin Shao
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P.R. China
| | - Jiabin Dai
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P.R. China
| | - Yuchen Lin
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P.R. China.,Eye Center, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, P.R. China
| | - Xiaochun Yang
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P.R. China
| | - Jian Ma
- Center for Drug Safety Evaluation and Research of Zhejiang University, Hangzhou, P.R. China
| | - Qiaojun He
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P.R. China
| | - Bo Yang
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P.R. China
| | - Ke Yao
- Eye Center, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, P.R. China
| | - Peihua Luo
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P.R. China
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127
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Xing J, Wang G, Zhang Q, Liu X, Yin B, Fang D, Zhao J, Zhang H, Chen YQ, Chen W. Determining antioxidant activities of lactobacilli by cellular antioxidant assay in mammal cells. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.09.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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128
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Gacesa R, Dunlap WC, Long PF. Bioinformatics analyses provide insight into distant homology of the Keap1-Nrf2 pathway. Free Radic Biol Med 2015; 88:373-380. [PMID: 26117326 DOI: 10.1016/j.freeradbiomed.2015.06.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 06/03/2015] [Accepted: 06/06/2015] [Indexed: 12/25/2022]
Abstract
An essential requirement for the evolution of early eukaryotic life was the development of effective means to protect against metabolic oxidative stress and exposure to environmental toxicants. In present-day mammals, the master transcription factor Nrf2 regulates basal level homeostasis and inducible expression of numerous detoxifying and antioxidant genes. To examine early evolution of the Keap1-Nrf2 pathway, we present bioinformatics analyses of distant homology of mammalian Keap1 and Nrf2 proteins across the Kingdoms of Life. Software written for this analysis is made freely available on-line. Furthermore, utilizing protein modeling and virtual screening methods, we demonstrate potential for Nrf2 activation by competitive inhibition of its binding to Keap1, specifically by UV-protective fungal mycosporines and marine mycosporine-like amino acids (MAAs). We contend that coevolution of Nrf2-activating secondary metabolites by fungi and other extant microbiota may provide prospective compound leads for the design of new therapeutics to target activation of the human Keap1-Nrf2 pathway for treating degenerative diseases of ageing.
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Affiliation(s)
- Ranko Gacesa
- Institute of Pharmaceutical Science, King's College London, 150 Stamford Street, London SE1 9NH, UK
| | - Walter C Dunlap
- Institute of Pharmaceutical Science, King's College London, 150 Stamford Street, London SE1 9NH, UK
| | - Paul F Long
- Institute of Pharmaceutical Science, King's College London, 150 Stamford Street, London SE1 9NH, UK; Department of Chemistry, King's College London, 150 Stamford Street, London SE1 9NH, UK.
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129
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Effects of epicatechin gallate (ECG) on fetal bovine serum (FBS)-induced steatosis in human liver cell line L02 and 2,2′-azobis (2-amidinopropane) (AAPH)-induced oxidative stress in human erythrocytes. Eur Food Res Technol 2015. [DOI: 10.1007/s00217-015-2560-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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130
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Lin S, Ching LT, Chen J, Cheung PC. Antioxidant and anti-angiogenic effects of mushroom phenolics-rich fractions. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.06.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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131
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Ge A, Liu Y, Zeng X, Kong H, Ma Y, Zhang J, Bai F, Huang M. Effect of diosmetin on airway remodeling in a murine model of chronic asthma. Acta Biochim Biophys Sin (Shanghai) 2015; 47:604-11. [PMID: 26033789 DOI: 10.1093/abbs/gmv052] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 04/17/2015] [Indexed: 11/14/2022] Open
Abstract
Bronchial asthma, one of the most common allergic diseases, is characterized by airway hyperresponsiveness (AHR), inflammation, and remodeling. The anti-oxidant flavone aglycone diosmetin ameliorates the inflammation in pancreatitis, but little is known about its impact on asthma. In this study, the effects of diosmetin on chronic asthma were investigated with an emphasis on the modulation of airway remodeling in BALB/c mice challenged with ovalbumin (OVA). It was found that diosmetin significantly relieved inflammatory cell infiltration, goblet cell hyperplasia, and collagen deposition in the lungs of asthmatic mice and notably reduced AHR in these animals. The OVA-induced increases in total cell and eosinophil counts in bronchoalveolar lavage fluid were reversed, and the level of OVA-specific immunoglobulin E in serum was attenuated by diosmetin administration, implying an anti-Th2 activity of diosmetin. Furthermore, diosmetin remarkably suppressed the expression of smooth muscle actin alpha chain, indicating a potent anti-proliferative effect of diosmetin on airway smooth muscle cells (ASMCs). Matrix metallopeptidase-9, transforming growth factor-β1, and vascular endothelial growth factor levels were also alleviated by diosmetin, suggesting that the remission of airway remodeling might be attributed to the decline of these proteins. Taken together, our findings provided a novel profile of diosmetin with anti-remodeling therapeutic benefits, highlighting a new potential of diosmetin in remitting the ASMC proliferation in chronic asthma.
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Affiliation(s)
- Ai Ge
- Department of Respiratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Yanan Liu
- Department of Respiratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Xiaoning Zeng
- Department of Respiratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Hui Kong
- Department of Respiratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Yuan Ma
- Department of Respiratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Jiaxiang Zhang
- Department of Respiratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Fangfang Bai
- Department of Respiratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Mao Huang
- Department of Respiratory Medicine, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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132
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Liao W, Lu Y, Fu J, Ning Z, Yang J, Ren J. Preparation and Characterization of Dictyophora indusiata Polysaccharide-Zinc Complex and Its Augmented Antiproliferative Activity on Human Cancer Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:6525-6534. [PMID: 26155804 DOI: 10.1021/acs.jafc.5b00614] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Dictyophora indusiata polysaccharide (DP1) was successfully chelated with zinc chloride to achieve its enhanced antiproliferative activity. The obtained DP1-Zn complex showed significant antiproliferative activity (18.1 ± 2.84% viability of MCF-7 cells at 250 μg/mL) on a group of human cancer cell lines through induction of apoptosis. The pro-apoptotic action of DP1-Zn was confirmed by morphological changes including chromatin condensation, DNA breakage, and S phase cell cycle arrest in human breast adenocarcinoma cells (MCF-7). The DP1-Zn-induced apoptotic pathways were characterized by the activation of caspases-3, -8, and -9, mitochondrial dysfunction, and reactive oxygen species (ROS) overproduction (305 ± 7.06% production of control at 250 μg/mL). This study suggested that DP1-Zn can be developed as a candidate for cancer treatment and prevention, especially human breast adenocarcinoma.
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Affiliation(s)
- Wenzhen Liao
- †College of Light Industry and Food Sciences, South China University of Technology, Wushan Road 381, Guangzhou 510640, China
| | - Yunjun Lu
- †College of Light Industry and Food Sciences, South China University of Technology, Wushan Road 381, Guangzhou 510640, China
| | - Junning Fu
- §Department of Food Science and Engineering, Jinan University, 601 West Huangpu Road, Guangzhou 510632, China
| | - Zhengxiang Ning
- †College of Light Industry and Food Sciences, South China University of Technology, Wushan Road 381, Guangzhou 510640, China
| | - Jiguo Yang
- †College of Light Industry and Food Sciences, South China University of Technology, Wushan Road 381, Guangzhou 510640, China
| | - Jiaoyan Ren
- †College of Light Industry and Food Sciences, South China University of Technology, Wushan Road 381, Guangzhou 510640, China
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133
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Rosenblat M, Volkova N, Aviram M. Selective oxidative stress and cholesterol metabolism in lipid-metabolizing cell classes: Distinct regulatory roles for pro-oxidants and antioxidants. Biofactors 2015; 41:273-88. [PMID: 26228307 DOI: 10.1002/biof.1223] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 06/21/2015] [Indexed: 12/13/2022]
Abstract
Atherogenesis is associated with macrophage cholesterol and oxidized lipids accumulation and foam cell formation. However, two other major lipid-metabolizing cell classes, namely intestinal and liver cells, are also associated with atherogenesis. This study demonstrates that manipulations of cellular oxidative stress (by fatty acids, glucose, low-density lipoprotein, angiotensin II, polyphenolic antioxidants, or the glutathione/paraoxonase 1 systems) have some similar, but also some different effects on cholesterol metabolism in macrophages (J774A.1) versus intestinal cells (HT-29) versus liver cells (HuH7). Cellular oxidative stress was ≈3.5-folds higher in both intestinal and liver cells versus macrophages. In intestinal cells or liver cells versus macrophages, the cholesterol biosynthesis rate was increased by 9- or 15-fold, respectively. In both macrophages and intestinal cells C-18:1 and C-18:2 but not C-18:0, fatty acids significantly increased oxidative stress, whereas in liver cells oxidative stress was significantly decreased by all three fatty acids. In liver cells, trans C-18:1 versus cis C-18:1, unlike intestinal cells or macrophages, significantly increased cellular oxidative stress and cellular cholesterol biosynthesis rate. Pomegranate juice (PJ), red wine, or their phenolics gallic acids or quercetin significantly reduced cellular oxidation mostly in macrophages. Recombinant PON1 significantly decreased macrophage (but not the other cells) oxidative stress by ≈30%. We conclude that cellular atherogenesis research should look at atherogenicity, not only in macrophages but also in intestinal and liver cells, to advance our understanding of the complicated mechanisms behind atherogenesis. © 2015 BioFactors, 41(4):273-288, 2015.
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Affiliation(s)
- Mira Rosenblat
- The Lipid Research Laboratory, Technion Rappaport Faculty of Medicine, Haifa, Israel
| | - Nina Volkova
- The Lipid Research Laboratory, Technion Rappaport Faculty of Medicine, Haifa, Israel
| | - Michael Aviram
- The Lipid Research Laboratory, Technion Rappaport Faculty of Medicine, Haifa, Israel
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134
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Wen L, You L, Yang X, Yang J, Chen F, Jiang Y, Yang B. Identification of phenolics in litchi and evaluation of anticancer cell proliferation activity and intracellular antioxidant activity. Free Radic Biol Med 2015; 84:171-184. [PMID: 25857215 DOI: 10.1016/j.freeradbiomed.2015.03.023] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2014] [Revised: 03/10/2015] [Accepted: 03/14/2015] [Indexed: 12/28/2022]
Abstract
Litchi leaf is a good resource for phenolics, which are good candidates for medicines. In this work, three phenolics were isolated from litchi leaf by column chromatography. Their structures were identified by electrospray ionization-mass spectrometry (ESI-MS) and nuclear magnetic resonance (NMR) spectroscopy as secoisolariciresinol 9'-O-β-D-xyloside (1), 4,7,7',8',9,9'-hexahydroxy-3,3'-dimethoxy-8,4'-oxyneolignan (2), and cinnamtannin B1 (3). Cinnamtannin B1 showed better extra- and intracellular antioxidant activities than Compounds 1 and 2. The intracellular antioxidant activity of cinnamtannin B1 was related to the upregulation of endogenous antioxidant enzyme activities (superoxide dismutase, catalase, and glutathione peroxidase), and inhibition of ROS generation. Furthermore, cinnamtannin B1 exhibited strong antiproliferative effects against HepG2 and Siha cell lines with no significant cytotoxicities. In the case of the HepG2 cell line, cell cycle arrest and apoptosis induction were the underlying anticancer mechanisms of cinnamtannin B1. The results indicated that cinnamtannin B1 was a potent cancer cell proliferation inhibitor and a good intracellular antioxidant.
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Affiliation(s)
- Lingrong Wen
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
| | - Lijun You
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
| | - Xiaoman Yang
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Jiali Yang
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Feng Chen
- Department of Food Science and Human Nutrition, Clemson University, SC 29634, USA
| | - Yueming Jiang
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Bao Yang
- Key Laboratory of Plant Resources Conservation and Sustainable Utilization, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China.
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135
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Zhang S, Han H, Guo Z, Tong H, Wei X. Synthesis and crystal structures of three amidinatoaluminum compounds and their catalytic behavior in the Tishchenko reaction. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.01.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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136
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Liao W, Luo Z, Liu D, Ning Z, Yang J, Ren J. Structure characterization of a novel polysaccharide from Dictyophora indusiata and its macrophage immunomodulatory activities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:535-544. [PMID: 25525995 DOI: 10.1021/jf504677r] [Citation(s) in RCA: 166] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A novel polysaccharide, here named DP1, was isolated from the fruiting body of Dictyophora indusiata using a water extraction method. Structure characterization revealed that DP1 had an average molecular weight of 1132 kDa and consisted of glucose (56.2%), galactose (14.1%), and mannose (29.7%). The main linkage type of DP1 were proven to be (1 → 3)-linked α-l-Man, (1 → 2,6)-linked α-d-Glc, (1 → 6)-linked β-d-Glc, (1 → 6)-linked β-d-Gal, and (1 → 6)-linked β-d-Man by periodate oxidation-Smith degradation and nuclear magnetic resonance analysis. The immunostimulating assay indicated that DP1 could significantly promote macrophage NO, TNF-α, and IL-6 secretion in murine RAW 264.7 cells involving complement receptor 3 (CR3). The immune activities of DP1 were quite stable under thermal processing (100, 121, and 145 °C). Besides, DP1 retained stability after acidic/alkline treatment (pH 4.0-10.0), which enabled it to be an ideal complementary medicine or functional food for therapeutics of hypoimmunity and immunodeficiency diseases.
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Affiliation(s)
- Wenzhen Liao
- College of Light Industry and Food Sciences, South China University of Technology , Guangzhou, Guangdong 510640, People's Republic of China
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