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histone deacetylase inflammation

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https://www.readbyqxmd.com/read/29352129/molecular-characterization-of-the-grape-seeds-extract-s-effect-against-chemically-induced-liver-cancer-in-vivo-and-in-vitro-analyses
#1
Alaaeldin Ahmed Hamza, Gehan Hussein Heeba, Hanan Mohamed Elwy, Chandraprabha Murali, Raafat El-Awady, Amr Amin
The purpose of this study was to investigate the anti-cancer property of grape seed extract (GSE) during early stages of developing liver cancer using a two-stage carcinogenic model combining diethylnitrosamine (DEN) and 2-Acetyl Aminofluorene (2-AAF). Administration of GSE at doses 25, 50 and 100 mg/kg per day started at the beginning of promotion periods and continued for 14 weeks. GSE dramatically inhibited pre-neoplastic foci formation as well as significantly decreased the number and the area of placental glutathione-S-transferase in livers of DEN-2AAF-treated rats by approximately 4 & 10 fold deductions, respectively...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29344006/histone-deacetylase-2-hdac2-attenuates-lipopolysaccharide-lps-induced-inflammation-by-regulating-pai-1-expression
#2
Wen-Feng Fang, Yu-Mu Chen, Chiung-Yu Lin, Hui-Lin Huang, Hua Yeh, Ya-Ting Chang, Kuo-Tung Huang, Meng-Chih Lin
Background: Sepsis is a life-threatening organ dysfunction caused by dysregulated host response to infection, and is primarily characterized by an uncontrolled systemic inflammatory response. In the present study, we developed an effective adjunct therapy mediated by a novel mechanism, to attenuate overt inflammation. LPS-treated macrophages were adopted as an in vitro model of endotoxin-induced inflammation during sepsis. Experiments were carried out using primary mouse peritoneal macrophages and the murine macrophage cell line RAW264...
2018: Journal of Inflammation
https://www.readbyqxmd.com/read/29343087/sulfhydrated-sirtuin-1-increasing-its-deacetylation-activity-is-an-essential-epigenetics-mechanism-of-anti-atherogenesis-by-hydrogen-sulfide
#3
Congkuo Du, Xianjuan Lin, Wenjing Xu, Fengjiao Zheng, Junyan Cai, Jichun Yang, Qinghua Cui, Chaoshu Tang, Jun Cai, Guoheng Xu, Bin Geng
AIMS: Hydrogen sulfide (H2S) has a protective role in the pathogenesis of atherosclerosis by multiple pathways. Sirtuin-1 (SIRT1) is a histone deacetylase, as an essential mediated longevity gene, and has an anti-atherogenic effect by regulating the acetylation of some functional proteins. Whether SIRT1 is involved in protecting H2S in atherosclerosis and its mechanism remains unclear. RESULTS: In ApoE-knockout atherosclerosis mice, treatment with an H2S donor (NaHS or GYY4137) reduced atherosclerotic plaque area, macrophage infiltration, aortic inflammation and plasma lipid level...
January 17, 2018: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29332324/effects-of-macrolide-and-corticosteroid-in-neutrophilic-asthma-mouse-model
#4
Tai Joon An, Chin Kook Rhee, Ji Hye Kim, Young Rong Lee, Jin Young Chon, Chan Kwon Park, Hyoung Kyu Yoon
BACKGROUND: Asthma is a disease of chronic airway inflammation with heterogeneous features. Neutrophilic asthma is corticosteroid-insensitive asthma related to absence or suppression of TH2 process and increased TH1 and/or TH17 process. Macrolides are immunomodulatory drug that reduce airway inflammation, but their role in asthma is not fully known. The purpose of this study was to evaluate the role of macrolides in neutrophilic asthma and compare their effects with those of corticosteroids...
January 2018: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/29301535/inhibition-of-histone-deacetylase-activity-rescues-inflammatory-cystic-fibrosis-lung-disease-by-modulating-innate-and-adaptive-immune-responses
#5
Manish Bodas, Steven Mazur, Taehong Min, Neeraj Vij
BACKGROUND: Chronic lung disease resulting from dysfunctional cystic fibrosis transmembrane conductance regulator (CFTR) and NFκB-mediated neutrophilic-inflammation forms the basis of CF-related mortality. Here we aimed to evaluate if HDAC inhibition controls Pseudomonas-aeruginosa-lipopolysaccharide (Pa-LPS) induced airway inflammation and CF-lung disease. METHODS: For in vitro experiments, HEK293-cells were transfected with IL-8 or NFκB-firefly luciferase, and SV40-renilla- luciferase reporter constructs or ΔF508-CFTR-pCEP, followed by treatment with suberoylanilide hydroxamic acid (SAHA), Trichostatin-A (TSA) and/or TNFα...
January 4, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29298809/sucrose-non-fermenting-related-kinase-regulates-both-adipose-inflammation-and-energy-homeostasis-in-mice-and-humans
#6
Jie Li, Bin Feng, Yaohui Nie, Ping Jiao, Xiaochen Lin, Mengna Huang, Ran An, Qin He, Huilin Emily Zhou, Arthur Salomon, Kirsten S Sigrist, Zhidan Wu, Simin Liu, Haiyan Xu
Sucrose non-fermenting related kinase (SNRK) is a member of AMPK-related kinase family and its physiological role in adipose energy homeostasis and inflammation remains unknown. We previously reported that SNRK is ubiquitously and abundantly expressed in both white (WAT) and brown adipose tissue (BAT) but adipose SNRK expression level diminishes in obesity. In the current study, we report novel experimental findings from both animal models and human genetics. SNRK is essential for survival since SNRK global deficient pups die within 24 hours after birth...
January 3, 2018: Diabetes
https://www.readbyqxmd.com/read/29251706/valproic-acid-induces-pro-survival-transcriptomic-changes-in-swine-subjected-to-traumatic-injury-and-hemorrhagic-shock
#7
Patrick E Georgoff, Vahagn C Nikolian, Gerald Higgins, Kiril Chtraklin, Hassan Eidy, Mohamed H Ghandour, Aaron Williams, Brian Athey, Hasan B Alam
BACKGROUND: Valproic acid (VPA) is a histone deacetylase inhibitor that improves outcomes in large animal models of trauma. However, its protective mechanism of action is not completely understood. We sought to characterize the genetic changes induced by VPA treatment following traumatic injuries. METHODS: Six female Yorkshire swine were subjected to traumatic brain injury (TBI, controlled cortical impact), polytrauma (liver and splenic laceration, rib fracture, rectus crush), and hemorrhagic shock (HS, 40% total blood volume)...
December 14, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29249955/expression-of-sirtuins-in-the-retinal-neurons-of-mice-rats-and-humans
#8
Hongdou Luo, Min Zhou, Kaibao Ji, Jiejie Zhuang, Wenjie Dang, Shiya Fu, Tao Sun, Xu Zhang
Sirtuins are a class of histone deacetylases (HDACs) that have been shown to regulate a range of pathophysiological processes such as cellular aging, inflammation, metabolism, and cell proliferation. There are seven mammalian Sirtuins (SIRT1-7) that play important roles in stress response, aging, and neurodegenerative diseases. However, the location and function of Sirtuins in neurons are not well defined. This study assessed the retinal expression of Sirtuins in mice, rats, and humans and measured the expression of Sirtuins in aged and injured retinas...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29230688/therapeutic-effects-of-histone-deacetylase-inhibitors-on-kidney-disease
#9
REVIEW
Pusoon Chun
Increasing evidence has shown the involvement of histone deacetylases (HDACs) in the development and progression of various renal diseases, highlighting its inhibition as a promising therapeutic strategy to prevent kidney diseases. Accordingly, numerous studies have shown that HDAC inhibitors protect the kidneys from various diseases through their effects on multiple pathways, such as suppression of transforming growth factor-β signaling pathway and nuclear factor-κB signaling pathways, augmentation of apoptosis, and inhibition of angiogenesis...
December 11, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/29229502/sodium-butyrate-abolishes-lipopolysaccharide-induced-depression-like-behaviors-and-hippocampal-microglial-activation-in-mice
#10
Yosuke Yamawaki, Norika Yoshioka, Kanako Nozaki, Hikaru Ito, Keisuke Oda, Kana Harada, Satomi Shirawachi, Satoshi Asano, Hidenori Aizawa, Shigeto Yamawaki, Takashi Kanemastu, Hiroyuki Akagi
Patients with major depressive disorder have elevated peripheral inflammation; the degree of this increase correlates with the severity of the disorder. Chronic psychological stress increases pro-inflammatory cytokines and promotes microglial activation, leading to stress vulnerability. Epigenetics, including DNA methylation and histone modification, are also related to the pathophysiology of major depressive disorder. Sodium butyrate (SB), a histone deacetylase inhibitor, exerts an antidepressant effect by altering gene expression in the hippocampus...
December 8, 2017: Brain Research
https://www.readbyqxmd.com/read/29222071/hdac11-is-a-regulator-of-diverse-immune-functions
#11
REVIEW
Cansu Yanginlar, Colin Logie
Histone deacetylases deacetylate histone and non-histone protein targets. Aberrant HDAC expression and function have been observed in several diseases, which makes these enzymes attractive treatment targets. Here, we summarize recent literature that addresses the roles of HDAC11 on the regulation of different immune cells including neutrophils, myeloid derived suppressor cells and T-cells. HDAC11 was initially identified as a negative regulator of the well-known anti-inflammatory cytokine IL-10. Hence, antagonizing HDAC11 activity may have anti-tumor potential, whereas activating HDAC11 may be useful to treat chronic inflammation or autoimmunity...
December 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29218097/histone-deacetylase-inhibitor-nabut-suppresses-cell-proliferation-and-induces-apoptosis-by-targeting-p21-in-multiple-myeloma
#12
Ruosi Yao, Danyang Han, Xiaoyang Sun, Chunling Fu, Qingyun Wu, Yao Yao, Hujun Li, Zhenyu Li, Kailin Xu
Multiple myeloma (MM) is an extremely serious hematological malignancy that remains incurable due to chemotherapy resistance. Epigenetic regulation is closely associated with progression of MM. Histone deacetylase inhibitor NaBut functions in various physiologic processes, including inflammation and differentiation. Its' possible roles in MM progression have not been explored. In this report, NaBut decreased survival of several human MM cell lines in a dose- and time-dependent manner. NaBut could also lead to cell cycle arrest at the G2/M phase in a dose-dependent manner...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29207042/anti-inflammatory-effect-of-lovastatin-is-mediated-via-the-modulation-of-nf-%C3%AE%C2%BAb-and-inhibition-of-hdac1-and-the-pi3k-akt-mtor-pathway-in-raw264-7-macrophages
#13
Hyung-Wook Choi, Pyung-Gyun Shin, Ji-Hyun Lee, Woo-Suk Choi, Min-Jae Kang, Won-Sik Kong, Min-Ji Oh, Yong-Bae Seo, Gun-Do Kim
Lovastatin is a 3-hydroxy-3-methylglutaryl-CoA reductase inhibitor that is clinically used for the prevention of cardiovascular diseases. Although it has been reported that lovastatin has anti-inflammatory properties in several studies, how lovastatin regulates the inflammation is still unclear. To evaluate the effect of lovastatin on nitric oxide production (NO) in RAW264.7 macrophages, NO production assay was performed. Also, cell viability was measured to confirm cytotoxicity. Level of tumor necrosis factor-α (TNF-α) transcription was measured by reverse transcription polymerase chain reaction (RT-PCR) from total RNA in RAW264...
December 5, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29184823/a-prospective-randomized-controlled-study-theophylline-on-oxidative-stress-and-steroid-sensitivity-in-chronic-obstructive-pulmonary-disease-patients
#14
R Ranjani, A T Sathiya Vinotha
Objective: Oxidative stress is involved in the pathogenesis of chronic obstructive pulmonary disease (COPD). Corticosteroid fails to suppress inflammation and oxidative stress due to steroid resistance. Theophylline has an effect on histone deacetylase (HDAC) activity and improves steroid sensitivity in COPD. Given changes in oxidative stress associated with diminished corticosteroid effects, a clinical study in which antioxidants and free radicals are estimated can suggest a correlation between antioxidants, theophylline, and corticosteroid sensitivity...
July 2017: International Journal of Pharmaceutical Investigation
https://www.readbyqxmd.com/read/29180183/timing-of-valproic-acid-in-acute-lung-injury-prevention-is-the-best-therapy
#15
George Kasotakis, Manuel D Galvan, Paw Osathanugrah, Neerav Dharia, Lauren Bufe, Zachary Breed, Joseph P Mizgerd, Daniel G Remick
BACKGROUND: Acute lung injury and respiratory distress syndrome is characterized by uncontrolled inflammation of the lungs after a severe inflammatory stimulus. We have previously demonstrated an ameliorated syndrome and improved survival in mice with early administration of valproic acid (VPA), a broad-spectrum histone deacetylase inhibitor, while studies in humans have shown no benefit when anti-inflammatories are administered late. The current study tested the hypothesis that early treatment would improve outcomes in our gram-negative pneumonia-induced acute lung injury...
December 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/29179471/histone-deacetylase-6-inhibition-counteracts-the-epithelial-mesenchymal-transition-of-peritoneal-mesothelial-cells-and-prevents-peritoneal-fibrosis
#16
Liuqing Xu, Na Liu, Hongwei Gu, Hongrui Wang, Yingfeng Shi, Xiaoyan Ma, Shuchen Ma, Jun Ni, Min Tao, Andong Qiu, Shougang Zhuang
The role of histone deacetylase 6 (HDAC6) in peritoneal fibrosis remains unknown. In this study, we examined the effect of HDAC6 inhibition on the epithelial-mesenchymal transition (EMT) of peritoneal mesothelial cells and development of peritoneal fibrosis. Treatment with tubastatin A, a highly selective HDAC6 inhibitor, or silencing of HDAC6 with siRNA inhibited transforming growth factor β1-induced EMT, as evidenced by decreased expression of α-smooth muscle actin, collagen I and preserved expression of E-cadherin in cultured human peritoneal mesothelial cells...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29161081/diet-obesity-and-asthma
#17
Lisa G Wood
Obesity has reached epidemic proportions in many developed countries as Western dietary patterns have been widely adopted. These diets are characterized by excess energy intake as well as regular consumption of processed or "fast" foods and limited consumption of fruit, vegetables, and whole grains. The result is a high intake of saturated fat, refined carbohydrates, and sodium; and a low intake of fiber, vitamins, and other phytochemicals. This type of poor-quality diet has been associated with increased risk of chronic inflammatory diseases, including asthma...
November 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29160373/the-role-of-histone-deacetylase-inhibitors-in-regulation-of-akt-gsk-3%C3%AE-signaling-pathway-in-mice-following-transient-focal-cerebral-ischemia
#18
Bo Zhao, Lian Liu, Yan Leng, Quan Yuan, Jiabao Hou, Yang Wu, Wenwei Gao
PURPOSE: To investigate whether the neuroprotective effect of TSA on cerebral ischemia reperfusion injury is mediated by the activation of Akt/GSK-3β signaling pathway. METHODS: Mice were randomly divided into four groups (n=15): sham group (S); ischemia reperfusion group (IR); ischemia reperfusion and pretreated with TSA group (IR+T); ischemia reperfusion and pretreated with TSA and LY294002 group (IR+T+L). The model of cerebral ischemia reperfusion was established by 1h of MCAO following 24h of reperfusion...
October 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29142617/acute-strenuous-exercise-induces-an-imbalance-on-histone-h4-acetylation-histone-deacetylase-2-and-increases-the-proinflammatory-profile-of-pbmc-of-obese-individuals
#19
Gilson P Dorneles, Maria Carolina R Boeira, Lucas L Schipper, Ivy R V Silva, Viviane R Elsner, Pedro Dal Lago, Alessandra Peres, Pedro R T Romão
This study evaluated the response of global histone H4 acetylation (H4ac), histone deacetylase 2 (HDAC2) activity, as well as the production of proinflammatory cytokines and monocyte phenotypes of lean and obese males after exercise. Ten lean and ten obese sedentary men were submitted to one session of strenuous exercise, and peripheral blood mononuclear cells (PBMC) were stimulated in vitro with lipopolysaccharide (LPS). Global H4ac levels, HDAC2 activity in PBMC, and IL-6, IL-8, and TNF-α production were analyzed...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29132743/nuclear-sirtuins-and-inflammatory-signaling-pathways
#20
REVIEW
Keila Lopes Mendes, Deborah de Farias Lelis, Sérgio Henrique Sousa Santos
The regulation of chronic inflammation has received considerable research attention in recent years because of its contribution to the pathogenesis of chronic diseases such as arthritis, diabetes, metabolic syndrome and obesity. Thus, strategies that inhibit the inflammatory state may be beneficial in improving the pathophysiology of several inflammation-related disorders. Sirtuins are a family of histone deacetylases that contain seven enzymatic activities in mammals (SIRT1-SIRT7) and function to suppress gene transcription by epigenetic mechanisms...
November 7, 2017: Cytokine & Growth Factor Reviews
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