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Resveratrol AND Mitochondria

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https://www.readbyqxmd.com/read/27611176/autophagy-and-mitochondrial-dysfunction-in-adjuvant-arthritis-rats-treatment-with-resveratrol
#1
Junqiang Zhang, Xianbin Song, Wei Cao, Jinseng Lu, Xiaoqing Wang, Gaoyuan Wang, Zhicheng Wang, Xiaoyu Chen
Resveratrol is a polyphenol derivatives which exhibits a pro-apoptotic effect in a variety of human cancers by triggering mitochondria apoptosis pathway and autophagy. However, there are scarcely reports on its apoptosis-promoting effect in abnormal proliferation fibroblast-like synoviocytes (FLSs). In this study, we investigated the underlying mechanism and apoptosis-inducing effects of resveratrol on the abnormal proliferation of FLSs in adjuvant-arthritis (AA) rats. Since using resveratrol for 12 days resulted in a significant decreasing the swelling degree of the paw, reducing malondialdehyde (MDA) content and enhancing superoxide dismutase (SOD) activity, antioxidant capacity, glutathione peroxidase and glutathione reductase ratio in AA rats...
September 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27606689/resveratrol-specifically-kills-cancer-cells-by-a-devastating-increase-in-the-ca2-coupling-between-the-greatly-tethered-endoplasmic-reticulum-and-mitochondria
#2
Corina T Madreiter-Sokolowski, Benjamin Gottschalk, Warisara Parichatikanond, Emrah Eroglu, Christiane Klec, Markus Waldeck-Weiermair, Roland Malli, Wolfgang F Graier
BACKGROUND/AIMS: Resveratrol and its derivate piceatannol are known to induce cancer cell-specific cell death. While multiple mechanisms of actions have been described including the inhibition of ATP synthase, changes in mitochondrial membrane potential and ROS levels, the exact mechanisms of cancer specificity of these polyphenols remain unclear. This paper is designed to reveal the molecular basis of the cancer-specific initiation of cell death by resveratrol and piceatannol. METHODS: The two cancer cell lines EA...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27551266/benzo-a-pyrene-induced-p53-mediated-male-germ-cell-apoptosis-synergistic-protective-effects-of-curcumin-and-resveratrol
#3
Bhaswati Banerjee, Supriya Chakraborty, Debidas Ghosh, Sanghamitra Raha, Parimal C Sen, Kuladip Jana
Benzo(a)pyrene (B(a)P) is an environmental toxicant that induces male germ cell apoptosis. Curcumin and resveratrol are phytochemicals with cytoprotective and anti-oxidative properties. At the same time resveratrol is also a natural Aryl hydrocarbon Receptor (AhR) antagonist. Our present study in isolated testicular germ cell population from adult male Wistar rats, highlighted the synergistic protective effect of curcumin and resveratrol against B(a)P induced p53 mediated germ cell apoptosis. Curcumin-resveratrol significantly prevented B(a)P induced decrease in sperm cell count and motility, as well as increased serum testosterone level...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27519633/low-oxygen-level-increases-proliferation-and-metabolic-changes-in-bovine-granulosa-cells
#4
Shogo Shiratsuki, Tomotaka Hara, Yasuhisa Munakata, Koumei Shirasuna, Takehito Kuwayama, Hisataka Iwata
The present study addresses molecular backgrounds underlying low oxygen induced metabolic changes and 1.2-fold change in bovine granulosa cell (GCs) proliferation. RNA-seq revealed that low oxygen (5%) upregulated genes associated with HIF-1 and glycolysis and downregulated genes associated with mitochondrial respiration than that in high oxygen level (21%). Low oxygen level induced high glycolytic activity and low mitochondrial function and biogenesis. Low oxygen level enhanced GC proliferation with high expression levels of HIF-1, VEGF, AKT, mTOR, and S6RP, whereas addition of anti-VEGF antibody decreased cellular proliferation with low phosphorylated AKT and mTOR expression levels...
December 5, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27490778/cstmp-induces-apoptosis-and-mitochondrial-dysfunction-in-human-myeloma-rpmi8226-cells-via-chop-dependent-endoplasmic-reticulum-stress
#5
Xing Sun, Wang Liao, Jialing Wang, Ping Wang, Hongxiu Gao, Meng Wang, Chunling Xu, Yaping Zhong, Yan Ding
BACKGROUND: The natural product tetramethylpyrazine (TMP) and resveratrol have a variety of biologic activities, including anti-cancer effects. However the pharmacological function of CSTMP (a newly designed and synthesized TMP and resveratrol derivative) in cancer have not been elucidated. METHODS: In RPMI8226 cells, the cytotoxic effects and apoptosis were detected by MTT and Double staining for Annexin V-FITC and propidium iodide (PI). The protein and mRNA expression levels were detected by Real Time PCR and Western blot, respectively...
August 1, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27489133/the-protective-effect-of-resveratrol-against-cytotoxicity-induced-by-mycotoxin-zearalenone
#6
Yaqiu Sang, Wenzhu Li, Genyi Zhang
Zearalenone (ZEA), a non-steroidal estrogenic mycotoxin, is widely present in cereals and agricultural products. The literature reports suggest that oxidative damage seems to be a key determinant of ZEA-induced toxicity, and the protective effect of resveratrol (RSV), an antioxidant phenolic compound, on ZEA-induced cytotoxicity to HEK293 cells was investigated. The experimental results showed that ZEA decreased cell viability in a dose dependent manner with an IC50 value of 80 μM, and induced an increase in intracellular reactive oxygen species (ROS) in HEK293 cells...
September 14, 2016: Food & Function
https://www.readbyqxmd.com/read/27470364/ire1%C3%AE-traf2-ask1-pathway-is-involved-in-cstmp-induced-apoptosis-and-er-stress-in-human-non-small-cell-lung-cancer-a549-cells
#7
Jiexia Zhang, Ying Liang, Yongbin Lin, Yuanbin Liu, YouYou, Weiqiang Yin
BACKGROUND: CSTMP, a Tetramethylpyrazine (TMP) analogue, is designed and synthesized based on the pharmacophores of TMP and resveratrol. Recent studies showed that CSTMP had strong protective effects in endothelial cells apoptosis by its anti-oxidant activity. However, the pharmacological function of CSTMP in cancer have not been elucidated to date. The objective of this study was to investigate the anti-cancer effect of CSTMP against human non-small cell lung cancer (NSCLC) A549 cells and the underlying mechanisms...
August 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27400479/use-of-microbial-fuel-cells-to-monitor-current-production-in-qi-deficient-liver-cells
#8
Karen Poon, Lexin Liang, Chang Xu
OBJECTIVE: To monitor current production in Qi-deficient liver cells, and to study how cellular proton leakage might affect electric current production. METHODS: Cells were placed in an microbial fuel cells (MFC) anode and the electric current was measured. Mitochondrial-affecting chemicals, 2,4-dinitrophenol (DNP) and resveratrol (RVT), were used to induce proton leakage in cells and their effect on current production observed. MCF-7 breast cancer cells exhibited higher proton leakage relative to normal liver cells...
April 2016: Journal of Traditional Chinese Medicine, Chung i Tsa Chih Ying Wen Pan
https://www.readbyqxmd.com/read/27373419/signaling-mechanisms-underlying-the-glioprotective-effects-of-resveratrol-against-mitochondrial-dysfunction
#9
Bruna Bellaver, Larissa Daniele Bobermin, Débora Guerini Souza, Marília Danielly Nunes Rodrigues, Adriano Martimbianco de Assis, Moacir Wajner, Carlos-Alberto Gonçalves, Diogo Onofre Souza, André Quincozes-Santos
Resveratrol, a polyphenol found in grapes and red wine, exhibits antioxidant, anti-inflammatory, anti-aging and, neuroprotective effects. Resveratrol also plays a significant role modulating glial functionality, protecting the health of neuroglial cells against several neuropsychiatric in vivo and in vitro experimental models. Mitochondrial impairment strongly affected astrocyte functions and consequently brain homeostasis. Molecules that promote astrocyte mitochondrial protection are fundamental to maintain brain energy balance and cellular redox state, contributing to brain healthy...
September 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27344270/bedaquiline-an-fda-approved-antibiotic-inhibits-mitochondrial-function-and-potently-blocks-the-proliferative-expansion-of-stem-like-cancer-cells-cscs
#10
Marco Fiorillo, Rebecca Lamb, Herbert B Tanowitz, Anna Rita Cappello, Ubaldo E Martinez-Outschoorn, Federica Sotgia, Michael P Lisanti
Bedaquiline (a.k.a., Sirturo) is an anti-microbial agent, which is approved by the FDA for the treatment of multi-drug resistant pulmonary tuberculosis (TB). Bedaquiline is a first-in-class diaryl-quinoline compound, that mechanistically inhibits the bacterial ATP-synthase, and shows potent activity against both drug-sensitive and drug-resistant TB. Interestingly, eukaryotic mitochondria originally evolved from engulfed aerobic bacteria. Thus, we hypothesized that, in mammalian cells, bedaquiline might also target the mitochondrial ATP-synthase, leading to mitochondrial dysfunction and ATP depletion...
August 2016: Aging
https://www.readbyqxmd.com/read/27340138/polydatin-post-treatment-alleviates-myocardial-ischaemia-reperfusion-injury-by-promoting-autophagic-flux
#11
Yuanna Ling, Guiming Chen, Yi Deng, Huixiong Tang, Long Ling, Xiaoming Zhou, Xudong Song, Pingzhen Yang, Yingfeng Liu, Zhiliang Li, Cong Zhao, Yufei Yang, Xianbao Wang, Masafumi Kitakaze, Yulin Liao, Aihua Chen
Polydatin (PD), a resveratrol (RES) glycoside, has a stronger antioxidative effect than RES. It is known that RES is an autophagic enhancer and exerts a cardioprotective effect against ischaemia/reperfusion (I/R) injury. However, the effect of PD post-treatment on myocardial I/R injury remains unclear. In the present study, we investigated the influences of PD post-treatment on myocardial I/R injury and autophagy. C57BL/6 mice underwent left coronary artery (LCA) occlusion and cultured neonatal rat cardiomyocytes (NRCs) subjected to hypoxia were treated with vehicle or PD during reperfusion or re-oxygenation...
September 1, 2016: Clinical Science (1979-)
https://www.readbyqxmd.com/read/27197738/stimulation-of-eryptosis-the-suicidal-erythrocyte-death-by-piceatannol
#12
Elena Signoretto, Michela Castagna, Florian Lang
BACKGROUND/AIMS: Piceatannol, an analog and metabolite of resveratrol, is effective against various disorders including malignancy. It is in part effective by triggering suicidal death or apoptosis of tumor cells. Cellular mechanisms mediating the proapoptotic effect of Piceatannol include mitochondrial depolarization and cytochrome c release. Erythrocytes lack mitochondria but may nevertheless enter suicidal death or eryptosis, which is characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27187037/effect-of-simvastatin-coenzyme-q10-resveratrol-acetylcysteine-and-acetylcarnitine-on-mitochondrial-respiration
#13
Z Fišar, J Hroudová, N Singh, A Kopřivová, D Macečková
Some therapeutic and/or adverse effects of drugs may be related to their effects on mitochondrial function. The effects of simvastatin, resveratrol, coenzyme Q10, acetylcysteine, and acetylcarnitine on Complex I-, Complex II-, or Complex IV-linked respiratory rate were determined in isolated brain mitochondria. The protective effects of these biologically active compounds on the calcium-induced decrease of the respiratory rate were also studied. We observed a significant inhibitory effect of simvastatin on mitochondrial respiration (IC50 = 24...
2016: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/27067422/polydatin-ameliorates-injury-to-the-small-intestine-induced-by-hemorrhagic-shock-via-sirt3-activation-mediated-mitochondrial-protection
#14
Zhenhua Zeng, Yating Yang, Xingui Dai, Siqi Xu, Tao Li, Qin Zhang, Ke-Seng Zhao, Zhongqing Chen
BACKGROUND: Previously, we demonstrated that sirtuin (SIRT)1 plays vital roles in the small intestine (SI), protecting against severe hemorrhagic shock (HS), and that polydatin (PD) can attenuate SI injury via SIRT1 activation. OBJECTIVE: To explore the role of SIRT3 and mitochondria in SI injury after HS, and explore SIRT3 as a therapeutic target of PD in HS. METHODS: An H2O2-induced model of oxidative stress and an HS model were created in IEC-6 cells and Sprague-Dawley rats, respectively...
June 2016: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/27064125/activation-of-sirt3-attenuates-triptolide-induced-toxicity-through-closing-mitochondrial-permeability-transition-pore-in-cardiomyocytes
#15
Yanqin Yang, Wenwen Wang, Zhewen Xiong, Jiamin Kong, Yuwen Qiu, Feihai Shen, Zhiying Huang
Triptolide (TP), an active component of the traditional Chinese herb Tripterygium wilfordii Hook f. (TWHF), has multiple pharmacological effects. However, the severe toxicity of TP greatly restricts its clinical applications. Although TP exposure causes serious heart injury, the mechanism underlying TP-induced cardiotoxicity has rarely been investigated. In previous studies, we found that TP-induced oxidative stress was involved in the mitochondria-dependent apoptosis of cardiomyocytes. Opening of the mitochondrial permeability transition pore (mPTP) is the key to the mitochondrial dysfunction in cardiac toxicity...
August 2016: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/27058985/antioxidant-effects-of-resveratrol-in-the-cardiovascular-system
#16
Ning Xia, Andreas Daiber, Ulrich Förstermann, Huige Li
Antioxidant effects of resveratrol (3,5,4'-trihydroxy-trans-stilbene) contribute substantially to the health benefits of the compound. Resveratrol has been shown to be a scavenger of a number of free radicals. However, the direct scavenging activities of resveratrol are relatively poor. The antioxidant properties of resveratrol in vivo are more likely to be attributable to its effect as a gene regulator. Resveratrol inhibits NADPH oxidase-mediated production of reactive oxygen species by downregulating the expression and activity of the oxidase...
April 5, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27048571/effect-of-resveratrol-analogue-dmu-212-on-antioxidant-status-and-apoptosis-related-genes-in-rat-model-of-hepatocarcinogenesis
#17
H Piotrowska, M Kujawska, M Nowicki, E Petzke, E Ignatowicz, V Krajka-Kuźniak, P Zawierucha, M Wierzchowski, M Murias, J Jodynis-Liebert
The aim of the study was to examine whether antioxidant properties of 3,4,4',5-tetramethoxystilbene (DMU-212) contribute to its anticarcinogenic activity and whether DMU-212 affects the expression of apoptosis-related genes. Two-stage model of hepatocarcinogenesis was used; male Wistar rats were challenged withN-nitrosodiethylamine (NDEA), 200 mg/kg body weight (b.w.), intraperitoneal, then phenobarbital (PB) in drinking water (0.05%) was administered. Simultaneously, DMU-212 was given per os at a dose 20 or 50 mg/kg b...
April 4, 2016: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/26987203/-study-on-the-resveratrol-and-arsenic-trioxide-combination-induced-apoptosis-and-its-mechanism-on-lung-adenocarcinoma-cells
#18
Shiyan Gu, Chengzhi Chen, Xuejun Jiang, Zunzhen Zhang
OBJECTIVE: To explore the synergistically effects and mechanisms of resveratrol (RES) enhanced the oxidative stress and apoptotic cell death induced by As2O3 (arsenic trioxide). METHODS: According to the result of MTT assay, human lung adenocarcinoma A549 cells were divided into four treatment groups as follow: control group, single RES or As2O3 treated group and the group treated with RES and As2O3. Then the differences of cell viability, colony formation, level of ROS, GSH content, mitochondrial membrane potential and apoptosis rate were compared with single or combined treatment...
January 2016: Wei Sheng Yan Jiu, Journal of Hygiene Research
https://www.readbyqxmd.com/read/26982591/pterostilbene-inhibits-the-growth-of-human-esophageal-cancer-cells-by-regulating-endoplasmic-reticulum-stress
#19
Yingtong Feng, Yang Yang, Chongxi Fan, Shouyin Di, Wei Hu, Shuai Jiang, Tian Li, Zhiqiang Ma, Deng Chao, Xiao Feng, Zhenlong Xin, Sainan Pang, Xiaofei Li, Xiaolong Yan
BACKGROUND/AIMS: Pterostilbene (PTE), a natural dimethylated resveratrol analog from blueberries, is known to have diverse pharmacological activities, including anticancer properties. In this study, we investigated the anticancer activity of PTE against human esophageal cancer cells both in vitro and in vivo and explored the role of endoplasmic reticulum (ER) stress (ERS) signaling in this process. METHODS: Cell viability, the apoptotic index, Caspase 3 activity, adhesion, migration, reactive oxygen species (ROS) levels, and glutathione (GSH) levels were detected to explore the effect of PTE on human EC109 esophageal cancer cells...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/26972373/cardiac-mitochondrial-energy-metabolism-in-heart-failure-role-of-cardiolipin-and-sirtuins
#20
Vernon W Dolinsky, Laura K Cole, Genevieve C Sparagna, Grant M Hatch
Mitochondrial oxidation of fatty acids accounts for the majority of cardiac ATP production in the heart. Fatty acid utilization by cardiac mitochondria is controlled at the level of fatty acid uptake, lipid synthesis, mobilization and mitochondrial import and oxidation. Consequently defective mitochondrial function appears to be central to the development of heart failure. Cardiolipin is a key mitochondrial phospholipid required for the activity of the electron transport chain. In heart failure, loss of cardiolipin and tetralinoleoylcardiolipin helps to fuel the generation of excessive reactive oxygen species that are a by-product of inefficient mitochondrial electron transport chain complexes I and III...
October 2016: Biochimica et Biophysica Acta
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