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histone deacetylase inflammation

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https://www.readbyqxmd.com/read/28599297/long-term-cigarette-smoke-exposure-inhibits-histone-deacetylase-2-expression-and-enhances-the-nuclear-factor-%C3%AE%C2%BAb-activation-in-skeletal-muscle-of-mice
#1
Dongmei Huang, Zhiying Ma, Yili He, Ying Xiao, Honglin Luo, Qiuli Liang, Xiaoning Zhong, Jing Bai, Zhiyi He
Long-term cigarette smoke induces lung inflammatory injury and chronic obstructive pulmonary disease (COPD), associated with skeletal muscle inflammation. This study aimed at investigating how cigarette smoke promotes skeletal muscle inflammation and its molecular pathogenesis. Mice were exposed to air or cigarette smoke for 12 or 24 weeks, and C2C12 cells were stimulated with cigarette smoke extract (CSE). The mass and function, myotube formation, inflammatory cytokine production, histone deacetylase 2 (HDAC2) and nuclear factor-κB (NF-κB) p65 expression were detected in the gastrocnemius muscles of mice and C2C12 cells...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28566502/inhibition-of-hdac-enhances-stat-acetylation-blocks-nf-%C3%AE-b-and-suppresses-the-renal-inflammation-and-fibrosis-in-npr1-haplotype-male-mice
#2
Prerna Kumar, Venkateswara R Gogulamudi, Ramu Peryasamy, Giri Raghavaraju, Umadevi Subramania, Kailash N Pandey
Guanylyl cyclase/natriuretic peptide receptor-A (GC-A/NPRA) plays a critical role in the regulation of blood pressure and fluid volume homeostasis. Mice lacking functional Npr1 (coding for GC-A/NPRA) exhibit hypertension and congestive heart failure. However, the underlying mechanisms remain largely less clear. The objective of the present study was to determine the physiological efficacy and impact of all-trans retinoic acid (ATRA) and sodium butyrate (NaBu) in ameliorating the renal fibrosis, inflammation, and hypertension in Npr1 gene-disrupted haplotype (1-copy; +/-) mice (50% expression levels of NPRA)...
May 31, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28553227/srt1720-alleviates-anit-induced-cholestasis-in-a-mouse-model
#3
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/28550123/essential-role-for-histone-deacetylase-11-hdac11-in-neutrophil-biology
#4
Eva Sahakian, Jie Chen, John J Powers, Xianghong Chen, Kamira Maharaj, Susan L Deng, Maritza Lienlaf, Hong Wei Wang, Fengdong Cheng, Andressa L Sodré, Allison Distler, Limin Xing, Patricio Perez-Villarroel, Sheng Wei, Alejandro Villagra, Ed Seto, Eduardo M Sotomayor, Pedro Horna, Javier Pinilla-Ibarz
Epigenetic changes in chromatin structure have been recently associated with the deregulated expression of critical genes in normal and malignant processes. HDAC11, the newest member of the HDAC family of enzymes, functions as a negative regulator of IL-10 expression in APCs, as previously described by our lab. However, at the present time, its role in other hematopoietic cells, specifically in neutrophils, has not been fully explored. In this report, for the first time, we present a novel physiologic role for HDAC11 as a multifaceted regulator of neutrophils...
May 26, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28533215/inhibition-of-hdac3-prevents-diabetic-cardiomyopathy-in-ove26-mice-via-epigenetic-regulation-of-dusp5-erk1-2-pathway
#5
Zheng Xu, Qian Tong, Zhiguo Zhang, Shudong Wang, Yang Zheng, Qiuju Liu, Lingbo Qian, Shao-Yu Chen, Jian Sun, Lu Cai
Inhibition of total histone deacetylases (HDACs) was phenomenally associated with the prevention of diabetic cardiomyopathy (DCM). However, which specific HDAC plays the key role in DCM remains unclear. The present study was designed to determine whether DCM can be prevented by specific inhibition of HDAC3 and to elucidate the mechanisms by which inhibition of HDAC3 prevent DCM. Type 1 diabetes OVE26 and age-matched wild-type mice were given the selective HDAC3 inhibitor RGFP966 or vehicle for 3 months. These mice were then sacrificed immediately or 3 months later for cardiac function and pathological examination...
May 22, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28527875/magnolol-attenuates-the-inflammation-and-apoptosis-through-the-activation-of-sirt1-in-experimental-stroke-rats
#6
Dong-Quan Kou, Yan-Ling Jiang, Jia-Hua Qin, Yin-Hui Huang
BACKGROUND: Silent information regulator 1 (SIRT1), a histone deacetylase, plays a protective role in ischemic brain injury. Previous studies have shown that magnolol has a beneficial effect on ischemic stroke; however, the role of SIRT1 in the protective effect of magnolol against cerebral ischemia has not been investigated. METHODS: We used a middle cerebral artery occlusion model of stroke in rats. Before stroke induction, the rats received intraperitoneal injections of magnolol with or without the SIRT1 inhibitor, EX527...
January 10, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28515914/analysis-of-the-function-of-microrna-375-in-humans-using-bioinformatics
#7
Xiaohua Chen, Baoxia Li, Rongcheng Luo, Sina Cai, Cao Zhang, Xiaolong Cao
MicroRNA-375 (miR-375) is expressed at low levels in many types of solid tumor, particularly in gastrointestinal tumors. It is considered to be important in the development of cancer and certain diseases. Thus, more detailed knowledge is required on the particular functions of miR-375. miRs function by regulating target genes. Therefore, in the current study, miRWalk (which includes the data from 10 prediction software programs) was used to predict the target genes of miR-375. The genes, which were co-predicted using five different software programs were further analyzed using Database for Annotation, Visualization and Integrated Discovery online software [including gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis]...
May 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28499252/crosstalk-between-hdac6-and-nox2-based-nadph-oxidase-mediates-hiv-1-tat-induced-pro-inflammatory-responses-in-astrocytes
#8
Gi Soo Youn, Hyundong Cho, Donggyu Kim, Soo Young Choi, Jinseu Park
Histone deacetylase 6 (HDAC6) likely is important in inflammatory diseases. However, how HDAC6 exerts its effect on inflammatory processes remains unclear. HIV-1 transactivator of transcription (Tat) activates NADPH oxidase resulting in generation of reactive oxygen species (ROS), leading to extensive neuro-inflammation in the central nervous system. We investigated the correlation of HDAC6 and NADPH oxidase in HIV-1 Tat-stimulated astrocytes. HDAC6 knockdown attenuated HIV-1 Tat-induced ROS generation and NADPH oxidase activation...
August 2017: Redox Biology
https://www.readbyqxmd.com/read/28482944/increased-birth-weight-is-associated-with-altered-gene-expression-in-neonatal-foreskin
#9
L J Reynolds, R I Pollack, R J Charnigo, C S Rashid, A J Stromberg, S Shen, J M O'Brien, K J Pearson
Elevated birth weight is linked to glucose intolerance and obesity health-related complications later in life. No studies have examined if infant birth weight is associated with gene expression markers of obesity and inflammation in a tissue that comes directly from the infant following birth. We evaluated the association between birth weight and gene expression on fetal programming of obesity. Foreskin samples were collected following circumcision, and gene expression analyzed comparing the 15% greatest birth weight infants (n=7) v...
May 9, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28468311/tubacin-an-hdac6-selective-inhibitor-reduces-the-replication-of-the-japanese-encephalitis-virus-via-the-decrease-of-viral-rna-synthesis
#10
Chien-Yi Lu, Yi-Chih Chang, Chun-Hung Hua, Chieh Chuang, Su-Hua Huang, Szu-Hao Kung, Mann-Jen Hour, Cheng-Wen Lin
Japanese encephalitis virus (JEV), a neurotropic flavivirus, annually causes over 30,000 Japanese Encephalitis (JE) cases in East and Southeast Asia. Histone deacetylases (HDACs) modulate lysine acetylation of histones and non-histone proteins, regulating many processes including inflammation and antiviral immune response. This study investigated antiviral activity of pan- and selective-HDAC inhibitors as host-targeting agents against JEV. Among HDAC inhibitors, selective HDAC6 inhibitors (tubastatin-A (TBSA) and tubacin) concentration-dependently inhibited JEV-induced cytopathic effect and apoptosis, as well as reduced virus yield in human cerebellar medulloblastoma cells...
May 1, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28451285/chemical-optogenetic-modulation-of-inflammation-and-immunity
#11
Bibudha Parasar, Pamela V Chang
The immune system is an essential component of host defense against pathogens and is largely mediated by inflammatory molecules produced by immune cells, such as macrophages. These inflammatory mediators are regulated at the transcriptional level by chromatin-modifying enzymes including histone deacetylases (HDACs). Here we describe a strategy to regulate inflammation and immunity with photocontrolled HDAC inhibitors, which can be selectively delivered to target cells by UV irradiation to minimize off-target effects...
February 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/28447718/role-of-histone-deacetylase-expression-levels-and-activity-in-the-inflammatory-responses-of-patients-with-chronic-hepatitis-b
#12
Haiyue Zhang, Xun Li, Qian Zhang, Fan Yang, Xiaogang Chu, Di Zhang, Luwen Wang, Zuojiong Gong
Histone acetylation has been demonstrated to serve a pivotal role in numerous inflammatory diseases. The present study examined histone acetylation in patients with chronic hepatitis B (CHB) and CHB with liver failure by detecting histone deacetylase (HDAC) activity. Mice with acute liver failure (ALF) were treated with the HDAC inhibitor entinostat (MS275) and alterations in HDAC activity and pro‑inflammatory cytokine expression levels were detected. The effect of HDAC1 silencing on LPS-treated RAW264.7 murine macrophages was examined using specific small interfering RNA sequences, and the acetylation level of the non‑histone nuclear factor‑κB (NF‑κB) p65 subunit was additionally examined...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28388587/micro-rna-19a-interferes-with-il-10-expression-in-peripheral-dendritic-cells-of-patients-with-nasal-polyposis
#13
Xiang-Qian Luo, Jian-Bo Shao, Rui-Di Xie, Lu Zeng, Xiao-Xi Li, Shu-Qi Qiu, Xiao-Rui Geng, Li-Tao Yang, Lin-Jing Li, Da-Bo Liu, Zhi-Gang Liu, Ping-Chang Yang
The pathogenesis of nasal polyp is to be further investigated. Micro RNA (miR) plays a role in the development of allergic inflammation. Interleukin (IL)-10-producing dendritic cells (DC) have immune tolerogenic properties. This study test a hypothesis that miR-17-92 cluster is associated with suppressing IL-10 in peripheral DC. In this study, peripheral blood samples were obtained from 26 patients with nasal polyp. The CD11c DCs were isolated from the blood samples and analyzed for the expression of IL-10...
March 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28386366/micro-rna-19a-suppresses-interleukin-10-in-peripheral-b-cells-of-patients-with-diabetic-retinopathy
#14
Cong Wang, Qisheng You, Xusheng Cao, Huiling Guo, Xinxiao Gao, Xiaoyan Peng
A number of patients with diabetes suffer from retinopathy; the pathogenesis is to be further investigated. Recent reports indicate that micro RNA (miR) plays critical roles in the development of immune inflammation. This study test a hypothesis that miR-17-92 cluster is associated with the pathogenesis of diabetes retinopathy (DR). In this study, peripheral blood samples were collected from DR patients and healthy subjects. B cells were isolated from the blood samples to be analyzed the expression of interleukin (IL)-10...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28382171/hdac6-regulates-il-17-expression-in-t-lymphocytes-implications-for-hdac6-targeted-therapies
#15
Bing Yan, Yang Liu, Hong Bai, Miao Chen, Songbo Xie, Dengwen Li, Min Liu, Jun Zhou
The pro-inflammatory cytokine interleukin 17 (IL-17) is critically involved in immunity and inflammation. T-helper 17 and γδ T cells are the predominant sources of IL-17 in the immune system. However, the mechanisms by which the expression of IL-17 is regulated in T cells remain elusive. Here, we demonstrate that loss of histone deacetylase 6 (HDAC6) in mice does not affect the generation of CD4(+) or CD8(+) T cells, but stimulates the development of IL-17-producing γδ T cells. Our data further show that HDAC6 deficiency increases the production of IL-17 by Vγ4(+) γδ T cells in the spleen and lymph nodes...
2017: Theranostics
https://www.readbyqxmd.com/read/28380414/the-role-of-sirt1-in-diabetic-cardiomyopathy
#16
REVIEW
Hedyieh Karbasforooshan, Gholamreza Karimi
The prevalence of diabetes mellitus (DM) has been increasing worldwide. Diabetic cardiomyopathy (DCP) is the major risk for diabetes associated morbidity and mortality. Hyperglycemia and hyperinsulinemia play an indispensable role in underlying mechanisms of DCP. They increase advanced glycation end products (AGEs) following a series of events leading to myocardial damage and cardiomyopathy which include oxidative stress, increased inflammation, fibrosis, hypertrophy and apoptosis. SIRT1 is a nicotinamide adenosine dinucleotide (NAD)-dependent deacetylase that removes acetyl groups from proteins which can be implicated in DCP...
June 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28351995/sirt6-deficiency-results-in-progression-of-glomerular-injury-in-the-kidney
#17
Wen Huang, Hua Liu, Shuang Zhu, Michael Woodson, Rong Liu, Ronald G Tilton, Jordan D Miller, Wenbo Zhang
Aging is associated with an increased incidence and prevalence of renal glomerular diseases. Sirtuin (Sirt) 6, a nicotinamide adenine dinucleotide (NAD)-dependent histone deacetylase, has been shown to protect against multiple age-associated phenotypes; however it is unknown whether Sirt6 has a direct pathophysiologic role in the kidney. In the present study, we demonstrate that Sirt6 is expressed in the kidney and aging Sirt6-deficient mice exhibit renal hypertrophy with glomerular enlargement. Sirt6 deletion induces podocyte injury, including decreases in slit diaphragm proteins, foot process effacement, and cellular loss, resulting in proteinuria...
March 28, 2017: Aging
https://www.readbyqxmd.com/read/28344354/hdac1-3-inhibitor-ms-275-enhances-il10-expression-in-raw264-7-macrophages-and-reduces-cigarette-smoke-induced-airway-inflammation-in-mice
#18
Niek G J Leus, Thea van den Bosch, Petra E van der Wouden, Kim Krist, Maria E Ourailidou, Nikolaos Eleftheriadis, Loes E M Kistemaker, Sophie Bos, Rutger A F Gjaltema, Solomon A Mekonnen, Rainer Bischoff, Reinoud Gosens, Hidde J Haisma, Frank J Dekker
Chronic obstructive pulmonary disease (COPD) constitutes a major health burden. Studying underlying molecular mechanisms could lead to new therapeutic targets. Macrophages are orchestrators of COPD, by releasing pro-inflammatory cytokines. This process relies on transcription factors such as NF-κB, among others. NF-κB is regulated by lysine acetylation; a post-translational modification installed by histone acetyltransferases and removed by histone deacetylases (HDACs). We hypothesized that small molecule HDAC inhibitors (HDACi) targeting class I HDACs members that can regulate NF-κB could attenuate inflammatory responses in COPD via modulation of the NF-κB signaling output...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28257794/sirt1-a-class-iii-histone-deacetylase-regulates-lps-induced-inflammation-in-human-keratinocytes-and-mediates-the-anti-inflammatory-effects-of-hinokitiol
#19
Ju-Hee Lee, Ji-Hong Moon, You-Jin Lee, Sang-Youel Park
Skin inflammation is a response of the immune system to infection and injury. In this study, we report that hinokitiol, a tropolone-related natural compound that exhibits antioxidant, anti-inflammatory, and anticancer properties in various cell types, can modulate the inflammatory responses of primary human keratinocytes challenged with lipopolysaccharide (LPS). Hinokitiol treatment inhibited LPS-mediated up-regulation of proinflammatory factors including tumor necrosis factor alpha, IL-6, and prostaglandin E2 (PGE2)...
June 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28224747/why-do-lactobacilli-dominate-the-human-vaginal-microbiota
#20
REVIEW
S S Witkin, I M Linhares
Lactobacilli are the most abundant vaginal bacteria in women. They inhibit binding of other bacteria to epithelial cells and produce lactic acid that kills or inhibits the growth of many other bacteria. Lactic acid blocks histone deacetylases, thereby enhancing gene transcription and DNA repair. Lactic acid induces autophagy in epithelial cells to degrade intracellular microorganisms and promote homeostasis. Lactobacilli are tolerated by vaginal epithelial cells and inhibit induction of pro-inflammatory cytokines...
March 2017: BJOG: An International Journal of Obstetrics and Gynaecology
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