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Resveratrol SIRT1

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https://www.readbyqxmd.com/read/28636886/sirt1-enzymatically-potentiates-1-25-dihydroxyvitamin-d3-signaling-via-vitamin-d-receptor-deacetylation
#1
Marya S Sabir, Chengcheng Hu, Zainab Khan, Michael A Galligan, Christopher M Dussik, Sanchita Mallick, Angelika Dampf Stone, Shane F Batie, Elizabeth T Jacobs, G Kerr Whitfield, Mark R Haussler, Michael C Heck, Peter W Jurutka
The hormonal metabolite of vitamin D, 1,25-dihydroxyvitamin D3 (1,25D), binds to the vitamin D receptor (VDR) and promotes heterodimerization of VDR with a retinoid-X-receptor (RXR) to genomically regulate diverse cellular processes. Herein, it is revealed for the first time that VDR is post-translationally acetylated, and that VDR immunoprecipitated from human embryonic kidney (HEK293) cells displays a dramatic decrease in acetylated receptor in the presence of 1,25D-ligand, sirtuin-1 (SIRT1) deacetylase, or the resveratrol activator of SIRT1...
June 18, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28611316/effects-of-resveratrol-curcumin-berberine-and-other-nutraceuticals-on-aging-cancer-development-cancer-stem-cells-and-micrornas
#2
James A McCubrey, Kvin Lertpiriyapong, Linda S Steelman, Steve L Abrams, Li V Yang, Ramiro M Murata, Pedro L Rosalen, Aurora Scalisi, Luca M Neri, Lucio Cocco, Stefano Ratti, Alberto M Martelli, Piotr Laidler, Joanna Dulińska-Litewka, Dariusz Rakus, Agnieszka Gizak, Paolo Lombardi, Ferdinando Nicoletti, Saverio Candido, Massimo Libra, Giuseppe Montalto, Melchiorre Cervello
Natural products or nutraceuticals have been shown to elicit anti-aging, anti-cancer and other health-enhancing effects. A key target of the effects of natural products may be the regulation of microRNA (miR) expression which results in cell death or prevents aging, diabetes, cardiovascular and other diseases. This review will focus on a few natural products, especially on resveratrol (RES), curcumin (CUR) and berberine (BBR). RES is obtained from the skins of grapes and other fruits and berries. RES may extend human lifespan by activating the sirtuins and SIRT1 molecules...
June 12, 2017: Aging
https://www.readbyqxmd.com/read/28609708/anti-diabetic-activity-of-fused-ppar%C3%AE-sirt1-ligands-with-limited-body-weight-gain-by-mimicking-calorie-restriction-and-decreasing-sgk1-expression
#3
Celine Pirat, Catherine Dacquet, Veronique Leclerc, Nathalie Hennuyer, Monique Beucher-Gaudin, Ghislaine Zanirato, Anne Géant, Bart Staels, Alain Ktorza, Amaury Farce, Daniel-Henri Caignard, Pascal Berthelot, Nicolas Lebegue
A series of benzothiazol-2-one containing α-ethoxyphenylpropionic acid derivatives incorporating resveratrol or butein scaffolds were designed as fused full PPARγ agonist ligands and SIRT1-activating compounds for the treatment of type 2 diabetes (T2D) and its complications. Compound 14d displayed the best in vitro pharmacological profile with full PPARγ agonist activity (Emax = 98%, EC50 = 200 nM), SIRT1 enzymatic activation (+128%) and SGK1 expression inhibition (- 57%) which is known to limit side effects as fluid retention and body-weight gain...
June 10, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28608449/resveratrol-suppresses-lipoprotein-associated-phospholipase-a2-expression-by-reducing-oxidative-stress-in-macrophages-and-animal-models
#4
Shengnan Sun, Mingjun Zhang, Qiangbing Yang, Ziying Shen, Jiahuan Chen, Biao Yu, He Wang, Jiali Qu, Daxin Pang, Wenzhi Ren, Hongsheng Ouyang, Xiaochun Tang
SCOPE: Resveratrol is a naturally occurring polyphenolic compound with known cardioprotective, anti-inflammatory and antioxidant properties. Lipoprotein-associated phospholipase A2 (Lp-PLA2 ) is associated with the risk of cardiovascular disease. Here, we investigated the effects of resveratrol on Lp-PLA2 expression in vitro and in vivo and explored the underlying mechanisms. METHODS AND RESULTS: Human monocytic cells (THP-1) were induced to differentiate into macrophages for an in vitro experimental model...
June 13, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28604067/resveratrol-improves-cell-cycle-arrest-in-chronic-prostatitis-rats-by-c-kit-scf-suppression
#5
Yi He, Huizhi Zeng, Yang Yu, Jiashu Zhang, Xiaona Zeng, Fengtao Gong, Qi Liu, Bo Yang
Chronic prostatitis (CP) with complex pathogenesis is difficult for treatment. c-kit has been associated with the control of cell proliferation of prostate cells. This study aims to evaluate the role of resveratrol, an activator of Sirt1, in regulating the expression of c-kit in CP and investigate the consequent effects on cell cycle. Rat model of CP was established through subcutaneous injections of diphtheria-pertussis-tetanus vaccine and subsequently treated with resveratrol. Hematoxylin and eosin staining was performed to identify the histopathological changes in prostates...
June 12, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28600541/induction-of-sirtuin-1-signaling-by-resveratrol-induces-human-chondrosarcoma-cell-apoptosis-and-exhibits-antitumor-activity
#6
Sung-Chuan Chao, Ying-Ju Chen, Kuo-How Huang, Kuan-Lin Kuo, Ting-Hua Yang, Kuo-Yuan Huang, Ching-Chia Wang, Chih-Hsin Tang, Rong-Sen Yang, Shing-Hwa Liu
Chondrosarcoma is a malignant primary bone tumor. Sirtuin-1 (SIRT1), which is a member of sirtuin family, plays a dual role either in cancer promotion or suppression. There is no report about the role of SIRT1 in the human chondrosarcoma cells. Resveratrol is a potent activator of SIRT1. However, its effects on chondrosarcoma have not been extensively studied. Here, we investigated the role of SIRT1 induction by resveratrol in human chondrosarcoma cell growth and tumor progression. Resveratrol significantly decreased cell viability and induced cell apoptosis in human chondrosarcoma cells in a dose-dependent manner...
June 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28590410/depigmenting-effect-of-resveratrol-is-dependent-on-foxo3a-activation-without-sirt1-activation
#7
Soon-Hyo Kwon, Hye-Ryung Choi, Youn-A Kang, Kyoung-Chan Park
Resveratrol exhibits not only anti-melanogenic property by inhibiting microphthalmia-associated transcription factor (MITF), but also anti-aging property by activating sirtuin-1 (SIRT1). In this study, the relationship between depigmenting effect of resveratrol and SIRT1/forkhead box O (FOXO) 3a activation and was investigated. Resveratrol suppressed melanogenesis by the downregulation of MITF and tyrosinase via ERK pathway. Results showed that the expression of both SIRT1 and FOXO3a were increased. It is reported that SIRT1 is critical regulator of FOXO-mediated transcription in response to oxidative stress...
June 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28586010/resveratrol-protects-against-l-arginine-induced-acute-necrotizing-pancreatitis-in-mice-by-enhancing-sirt1-mediated-deacetylation-of-p53-and-heat-shock-factor-1
#8
Nian Wang, Fen Zhang, Liu Yang, Jiang Zou, Hao Wang, Ke Liu, Meidong Liu, Huali Zhang, Xianzhong Xiao, Kangkai Wang
Acute necrotizing pancreatitis (ANP) is a common severe critical illness with a high mortality rate. Resveratrol, a polyphenol compound derived from various plants such as grape skin, peanut, berry and veratrum, exhibits multiple biological activities, especially potent anti‑inflammatory activity, but its effect on ANP has not yet been fully elucidated. The present study aimed to investigate the effects of resveratrol on L-arginine-induced ANP and the possible mechanisms. A mouse model of ANP was established by 2 hourly intraperitoneal injections of 8% L-arginine (4 g/kg)...
June 6, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28586000/underlying-mechanism-of-sirt1-on-apoptosis-and-extracellular-matrix-degradation-of-osteoarthritis-chondrocytes
#9
Dong-Sheng He, Xiao-Jian Hu, Yi-Qi Yan, Hui Liu
The study investigated the effects and underlying mechanisms of silent information regulation of transcription 1 (Sirt1) action on apoptosis in chondrocytes and degradation of the extracellular matrix. Cartilage tissue samples were derived from knee arthroplasty of patients with osteoarthritis (OA). The three groups were as follows: Control, resveratrol (Res) and Res+small interfering (si)RNA (Res+siRNA Sirt1). The level of Sirt1 protein expression significantly increased in the Res group (1.03±0.10) compared with the control (0...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28580300/resveratrol-attenuates-triglyceride-accumulation-associated-with-upregulation-of-sirt1-and-lipoprotein-lipase-in-3t3-l1-adipocytes
#10
Haruki Imamura, Daiji Nagayama, Noriko Ishihara, Syo Tanaka, Rena Watanabe, Yasuhiro Watanabe, Yuta Sato, Takashi Yamaguchi, Noriko Ban, Hidetoshi Kawana, Masahiro Ohira, Kei Endo, Atsuhito Saiki, Kohji Shirai, Ichiro Tatsuno
AIM: We aimed to investigate the effect of resveratrol (Rsv) on expression of genes regulating triglyceride (TG) accumulation and consumption in differentiated 3T3-L1 preadipocytes. METHODS: 3T3-L1 preadipocytes were cultured in DMEM supplemented with 10% fetal calf serum. Upon reaching confluence, cells were induced to differentiate for 4 days, cultured for 10 days for TG accumulation, and then incubated with Rsv (0, 25 or 50 μM) for 3 days. TG accumulation was analyzed by Oil Red-O staining...
September 2017: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/28579512/homocysteine-up-regulates-endothelin-type-a-receptor-in-vascular-smooth-muscle-cells-through-sirt1-erk1-2-signaling-pathway
#11
Yulong Chen, Huanhuan Liu, Xinhong Wang, Hongmei Zhang, Enqi Liu, Xingli Su
Sirtuin 1 (Sirt1) is a longevity gene that has protective effects in cardiovascular diseases (CVDs). The endothelin type A (ETA) receptor is involved in pathogenesis of CVDs. The extracellular signal related kinases 1 and 2 (ERK1/2) signaling pathway is involved in regulation of the ETA receptor induced by some CVD risk factors in vascular smooth muscle cells (VSMCs). Hyperhomocysteinemia (HHcy) is an independent risk factor for CVDs. The present study was designed to investigate the hypothesis that homocysteine up-regulates ETA receptor through the Sirt1/ERK1/2 signaling pathway...
June 1, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28578410/resveratrol-pretreatment-attenuates-concanavalin-a-induced-hepatitis-through-reverse-of-aberration-in-the-immune-response-and-regenerative-capacity-in-aged-mice
#12
Tse-Hung Huang, Chin-Chang Chen, Hsuan-Miao Liu, Tzung-Yan Lee, Sue-Heui Shieh
Loss of regenerative capacity plays a critical role in age-related autoimmune hepatitis. Evidence implicates SIRT1 and p66(shc) in cell senescence, apoptosis, oxidative stress, and proliferation. This study investigated the effect of resveratrol on concanavalin A (Con A)-induced hepatitis in aged mice and the roles of SIRT1 and p66(shc). Aged mice were administrated resveratrol (30 mg/kg orally) seven times at an interval of 12 h before a single intravenous injection of Con A (20 mg/kg). Results showed that the cytokines, TNF-α, IL-6, IFN-γ, and MCP-1, as well as infiltration of macrophages, neutrophils, and T lymphocytes in liver were dramatically enhanced in the mice given only Con A...
June 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28565810/anti-atherogenic-properties-of-resveratrol-4-week-resveratrol-administration-associated-with-serum-concentrations-of-sirt1-adiponectin-s100a8-a9-and-vsmcs-contractility-in-a-rat-model
#13
Michał Wiciński, Bartosz Malinowski, Mateusz M Węclewicz, Elżbieta Grześk, Grzegorz Grześk
Resveratrol (3, 4', 5-trihydroxy-trans-stilbene) is a natural, non-flavonoid polyphenol that exerts protective properties against atherosclerosis-associated endothelial dysfunction and senescence. The present study aimed to assess the influence of resveratrol on vascular contractility and molecular factors including sirtuin-1 (SIRT1), adiponectin and calprotectin (S100A8/A9) that are considered to be important elements of atherogenesis. A total of 17 male rats were divided into a control and treatment group and administered resveratrol or a placebo...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28553227/srt1720-alleviates-anit-induced-cholestasis-in-a-mouse-model
#14
Linxi Yu, Xiaoxin Liu, Zihang Yuan, Xiaojiaoyang Li, Hang Yang, Ziqiao Yuan, Lixin Sun, Luyong Zhang, Zhengzhou Jiang
Intrahepatic cholestasis is a kind of clinical syndrome along with hepatotoxicity which caused by intrahepatic and systemic accumulations of bile acid. There are several crucial generating factors of the pathogenesis of cholestasis, such as inflammation, dysregulation of bile acid transporters and oxidative stress. SIRT1 is regarded as a class III histone deacetylase (HDAC). According to a set of researches, SIRT1 is one of the most important factors which can regulate the hepatic bile acid metabolism. SRT1720 is a kind of activator of SIRT1 which is 1000 times more potent than resveratrol, and this paper is aimed to study its protective influence on hepatotoxicity and cholestasis induced by alpha-naphthylisothiocyanate (ANIT) in mice...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28553103/the-metal-nanoparticle-induced-inflammatory-response-is-regulated-by-sirt1-through-nf-%C3%AE%C2%BAb-deacetylation-in-aseptic-loosening
#15
Zhantao Deng, Jiewen Jin, Zhenheng Wang, Yong Wang, Qian Gao, Jianning Zhao
Aseptic loosening is the most common cause of total hip arthroplasty (THA) failure, and osteolysis induced by wear particles plays a major role in aseptic loosening. Various pathways in multiple cell types contribute to the pathogenesis of osteolysis, but the role of Sirtuin 1 (SIRT1), which can regulate inflammatory responses through its deacetylation, has never been investigated. We hypothesized that the downregulation of SIRT1 in macrophages induced by metal nanoparticles was one of the reasons for osteolysis in THA failure...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28550734/pterostilbene-alleviates-polymicrobial-sepsis-induced-liver-injury-possible-role-of-sirt1-signaling
#16
Xiaojing Liu, Xueliang Yang, Lingna Han, Feng Ye, Min Liu, Wanhu Fan, Kai Zhang, Ying Kong, Jian Zhang, Lei Shi, Yunru Chen, Xi Zhang, Shumei Lin
Liver injury occurs frequently during sepsis. Pterostilbene (Pte), a natural dimethylated analog of resveratrol from blueberries, exerts anti-inflammatory and anti-apoptotic effects in various diseases. However, the role of Pte in sepsis-induced liver injury and its underlying mechanisms remain unknown. The current study aimed to evaluate the protective effects of Pte on sepsis-induced liver injury and its potential mechanisms. Sepsis was induced using cecal ligation and puncture (CLP) in C57BL/6 mice. Mice were administered Pte (5, 10, 15mg/kg, i...
May 24, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28542607/sirt1-is-a-positive-regulator-of-the-master-osteoblast-transcription-factor-runx2
#17
Kayvan Zainabadi, Cassie J Liu, Leonard Guarente
Activation of SIRT1 has previously been shown to protect mice against osteoporosis through yet ill-defined mechanisms. In this study, we outline a role for SIRT1 as a positive regulator of the master osteoblast transcription factor, RUNX2. We find that ex vivo deletion of sirt1 leads to decreased expression of runx2 downstream targets, but not runx2 itself, along with reduced osteoblast differentiation. Reciprocally, treatment with a SIRT1 agonist promotes osteoblast differentiation, as well as the expression of runx2 downstream targets, in a SIRT1-dependent manner...
2017: PloS One
https://www.readbyqxmd.com/read/28532580/sirt1-ameliorates-systemic-sclerosis-by-targeting-the-mtor-pathway
#18
Xiaoxia Zhu, Haiyan Chu, Shuai Jiang, Qingmei Liu, Lei Liu, Yu Xue, Shucong Zheng, Weiguo Wan, Jianhua Qiu, Jiucun Wang, Hejian Zou
BACKGROUND: Systemic sclerosis (SSc) is a chronic autoimmune disease characterized by inflammation and fibrosis. Our previous research has indicated that Sirtuin1 (Sirt1) plays a role in the regulation of TNF-α-induced inflammation; however, whether Sirt1 may inhibit the progress of SSc by blocking inflammation remains unknown. OBJECTIVE: We aimed to investigate the function of Sirt1 in SSc. METHODS: The function and its mechanism of Sirt1 were evaluated in fibroblasts or scleroderma mice...
May 3, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28494457/resveratrol-protects-against-pulmonary-arterial-hypertension-in-rats-via-activation-of-silent-information-regulator-1
#19
Lei Yu, Yingfeng Tu, Xueling Jia, Kun Fang, Li Liu, Lin Wan, Chuanying Xiang, Yanan Wang, Xiangju Sun, Tianyou Liu, Dejun Yu, Weiwei Cao, Yinli Song, Yuhua Fan
BACKGROUND/OBJECTIVES: The polyphenol resveratrol (Rev) has been found to exhibit various beneficial effects including prevention of pulmonary arterial hypertension (PAH). The present study was designed to investigate the action and potential mechanism of Rev on PAH, focusing on the role of SIRT1 (Silent Information Regulator 1) in apoptosis of pulmonary artery smooth muscle cells (PASMCs). METHODS: PAH rats were established by exposure to hypoxia for 21 days. Rev and SRT1720 (a selective SIRT1 activator) were used to reverse PAH by gavaging rats...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28481291/inflammation-downregulates-ucp1-expression-in-brown-adipocytes-potentially-via-sirt1-and-dbc1-interaction
#20
Mark K Nøhr, Natalia Bobba, Bjørn Richelsen, Sten Lund, Steen B Pedersen
Brown adipose tissue thermogenesis at the cost of energy is not only important for the development of obesity, but also possesses great promise in anti-obesity treatment. Uncoupling protein 1 (UCP1) expression has been reported to be under control of the intracellular deacetylase SIRT1. Here, we investigated the effect and mechanism of inflammation and sirtuin-1 (SIRT1) activation on the induction of thermogenic genes in immortalized brown adipocytes incubated with LPS or IL1β and mice with elevated inflammatory tone...
May 8, 2017: International Journal of Molecular Sciences
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