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https://www.readbyqxmd.com/read/28223126/targeted-inhibition-of-hdac8-increases-the-doxorubicin-sensitivity-of-neuroblastoma-cells-via-up-regulation-of-mir-137
#1
Gang Zhao, Guoliang Wang, Hongmin Bai, Tiandong Li, Fanghe Gong, Huan Yang, Jinchong Wen, Weimin Wang
Histone deacetylases (HDACs) have been suggested to be potential therapeutic targets for cancer treatment. Recent studies revealed that HDAC8 expression was associated with poor prognostic markers and poor overall survival rate of neuroblastoma (NB). Our present study revealed that among the four members of class I HDACs, HDAC8 is significantly over expressed in NB cells as compared with the normal fibroblast 3T3 cells or primary normal human astrocytes (NHA) cells. Targeted inhibition of HDAC8 by its specific siRNA (si-HDAC8) can inhibit the in vitro growth of NB cells...
February 18, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28222071/combination-of-the-histone-deacetylase-inhibitor-vorinostat-with-bevacizumab-in-patients-with-clear-cell-renal-cell-carcinoma-a-multicentre-single-arm-phase-i-ii-clinical-trial
#2
Roberto Pili, Glenn Liu, Sreenivasulu Chintala, Hendrick Verheul, Shabnam Rehman, Kristopher Attwood, Martin A Lodge, Richard Wahl, James I Martin, Kiersten Marie Miles, Silvia Paesante, Remi Adelaiye, Alejandro Godoy, Serina King, James Zwiebel, Michael A Carducci
BACKGROUND: Class II histone deacetylase (HDAC) inhibitors induce hypoxia-inducible factor-1 and -2α degradation and have antitumour effects in combination with vascular endothelial growth factor (VEGF) inhibitors. In this study, we tested the safety and efficacy of the HDAC inhibitor vorinostat and the VEGF blocker bevacizumab in metastatic clear-cell renal cell carcinoma (ccRCC) patients previously treated with different drugs including sunitinib, sorafenib, axitinib, interleukin-2, interferon, and temsirolimus...
February 21, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28218840/drug-repurposing-of-histone-deacetylase-inhibitors-that-alleviate-neutrophilic-inflammation-in-acute-lung-injury-and-idiopathic-pulmonary-fibrosis-via-inhibiting-leukotriene-a4-hydrolase-and-blocking-ltb4-biosynthesis
#3
Weiqiang Lu, Xue Yao, Ping Ouyang, Ningning Dong, Dang Wu, Xingwu Jiang, Zengrui Wu, Chen Zhang, Zhongyu Xu, Yun Tang, Shien Zou, Mingyao Liu, Jian Li, Ming-Hua Zeng, Ping Lin, Feixiong Cheng, Jin Huang
Acute lung injury (ALI) and idiopathic pulmonary fibrosis (IPF) are both serious public health problems with high incidence and mortality rate in adults, and with few drugs available for the efficient treatment in clinic. In this study, we identified that two known histone deacetylase (HDAC) inhibitors, suberanilohydroxamic acid (SAHA, 1) and its analog 4-(dimethylamino)-N-[7-(hydroxyamino)-7-oxoheptyl]benzamide (2), are effective inhibitors of Leukotriene A4 hydrolase (LTA4H), a key enzyme in the biosynthesis of leukotriene B4 (LTB4), across a panel of 18 HDAC inhibitors, using enzymatic assay, thermofluor assay, and X-ray Crystallographic investigation...
February 20, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28216661/mir-194-5p-bclaf1-deregulation-in-aml-tumorigenesis
#4
C Dell'Aversana, C Giorgio, L D'Amato, G Lania, F Matarese, S Saeed, A Di Costanzo, V B Petrizzi, C Ingenito, J H A Martens, I Pallavicini, S Minucci, A Carissimo, H G Stunnenberg, L Altucci
Deregulation of epigenetic mechanisms, including miRNA, contributes to leukaemogenesis and drug resistance by interfering with cancer-specific molecular pathways. Here, we show that the balance between miR-194-5p and its newly discovered target BCL2-associated transcription factor 1 (BCLAF1) regulates differentiation and survival of normal haematopoietic progenitors. In acute myeloid leukaemias (AMLs) this balance is perturbed, locking cells into an immature, potentially 'immortal' state. Enhanced expression of miR-194-5p by treatment with the HDAC inhibitor SAHA or by exogenous miR-194-5p expression re-sensitizes cells to differentiation and apoptosis by inducing BCLAF1 to shuttle between nucleus and cytosol...
February 20, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28213282/design-synthesis-and-biological-evaluation-of-thienopyrimidine-hydroxamic-acid-based-derivatives-as-structurally-novel-histone-deacetylase-hdac-inhibitors
#5
Jiang Wang, Mingbo Su, Tingting Li, Anhui Gao, Wei Yang, Li Sheng, Yi Zang, Jia Li, Hong Liu
New thienopyrimidine hydroxamic acid derivatives as HDACs inhibitors were designed, synthesized and evaluated. All compounds were evaluated for their ability to inhibit recombinant human HDAC1, HDAC3, and HDAC6 isoforms and in vitro anti-proliferative activity on tumor cell lines RMPI 8226 and HCT 116. Most of these compounds displayed good to excellent inhibitory activities against HDACs. The IC50 values of compound 9m against HDAC1, HDAC3, and HDAC6 was 29.81 ± 0.52 nM, 24.71 ± 1.16 nM, and 21.29 ± 0...
January 23, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28205129/remifentanil-postconditioning-ameliorates-histone-h3-acetylation-modification-in-h9c2-cardiomyoblasts-after-hypoxia-reoxygenation-via-attenuating-endoplasmic-reticulum-stress
#6
Manli Chen, Qin Liu, Lijian Chen, Lei Zhang, Erwei Gu
Remifentanil postconditioning (RPC) elicits cardioprotection against ischemia/reperfusion injury (IRI) by attenuating apoptosis associated with endoplasmic reticulum stress (ERS). Histone H3, acetylation modifications of histone H3, and histone deacetylases (HDAC) also have key roles in the mediation of the survival and apoptosis of cardiomyocytes. In this study, an in vitro IRI model was established with H9c2 cardiomyoblasts to investigate the role of histone H3 acetylation and HDAC3 in RPC-induced attenuation of ERS-associated apoptosis...
February 16, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28202316/an-epigenetic-modifier-induces-production-of-10-s-verruculide-b-an-inhibitor-of-protein-tyrosine-phosphatases-by-phoma-sp-nov-lg0217-a-fungal-endophyte-of-parkinsonia-microphylla
#7
Juliana R Gubiani, E M Kithsiri Wijeratne, Taoda Shi, Angela R Araujo, A Elizabeth Arnold, Eli Chapman, A A Leslie Gunatilaka
Incorporation of the histone deacetylase (HDAC) inhibitor, suberoylanilide hydroxamic acid (SAHA), to a culture broth of the endophytic fungus Phoma sp. nov. LG0217 isolated from Parkinsonia microphylla changed its metabolite profile and resulted in the production of (10'S)-verruculide B (1), vermistatin (2) and dihydrovermistatin (3). When cultured in the absence of the epigenetic modifier, it produced a new metabolite, (S,Z)-5-(3',4'-dihydroxybutyldiene)-3-propylfuran-2(5H)-one (4) together with nafuredin (5)...
February 3, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28196602/novel-n-hydroxybenzamides-incorporating-2-oxoindoline-with-unexpected-potent-histone-deacetylase-inhibitory-effects-and-antitumor-cytotoxicity
#8
Tran-Thi-Lan Huong, Do-Thi-Mai Dung, Nguyen-Van Huan, Le-Van Cuong, Pham-The Hai, Le-Thi-Thu Huong, Jisung Kim, Yong-Guk Kim, Sang-Bae Han, Nguyen-Hai Nam
In our search for novel small molecules targeting histone deacetylases, we have designed and synthesized two series of novel N-hydroxybenzamides incorporating 2-oxoindolines (4a-g, 6a-g). Biological evaluation showed that these benzamides potently inhibited HDAC2 with IC50 values in sub-micromolar range. In three human cancer cell lines the synthesized compounds were up to 4-fold more cytotoxic than SAHA. Docking experiments indicated that the compounds tightly bound to HDAC2 at the active binding site with binding affinities much higher than that of SAHA...
February 8, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28194101/contribution-of-neuroepigenetics-to-huntington-s-disease
#9
REVIEW
Laetitia Francelle, Caroline Lotz, Tiago Outeiro, Emmanuel Brouillet, Karine Merienne
Unbalanced epigenetic regulation is thought to contribute to the progression of several neurodegenerative diseases, including Huntington's disease (HD), a genetic disorder considered as a paradigm of epigenetic dysregulation. In this review, we attempt to address open questions regarding the role of epigenetic changes in HD, in the light of recent advances in neuroepigenetics. We particularly discuss studies using genome-wide scale approaches that provide insights into the relationship between epigenetic regulations, gene expression and neuronal activity in normal and diseased neurons, including HD neurons...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28191472/suppression-of-excessive-histone-deacetylases-activity-in-diabetic-hearts-attenuates-myocardial-ischemia-reperfusion-injury-via-mitochondria-apoptosis-pathway
#10
Yang Wu, Yan Leng, Qingtao Meng, Rui Xue, Bo Zhao, Liying Zhan, Zhongyuan Xia
Background. Histone deacetylases (HDACs) play a pivotal role in signaling modification and gene transcriptional regulation that are essential for cardiovascular pathophysiology. Diabetic hearts with higher HDACs activity were more vulnerable to myocardial ischemia/reperfusion (MI/R) injury compared with nondiabetic hearts. We are curious about whether suppression of excessive HDACs activity in diabetic heart protects against MI/R injury. Methods. Diabetic rats were subjected to 45 min of ischemia, followed by 3 h of reperfusion...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28188215/cystathionine-gamma-lyase-protects-vascular-endothelium-a-role-for-inhibition-of-histone-deacetylase-6
#11
Thorsten Martin Leucker, Yohei Nomura, Jae Hyung Kim, Anil Bhatta, Victor Wang, Andrea Wecker, Sandeep S Jandu, Lakshmi Santhanam, Dan E Berkowitz, Lewis Romer, Deepesh Pandey
Endothelial cystathionine -lyase (CSE) contributes to cardiovascular homeostasis, mainly through production of hydrogen sulfide. However, the molecular mechanisms that control CSE gene expression in endothelium during cardiovascular diseases are unclear. The aim of the current study is to determine the role of specific histone deacetylases (HDAC) in the regulation of endothelial CSE. Reduced CSE mRNA expression and protein abundance were observed in human aortic endothelial cells (HAEC) exposed to OxLDL and in aortas from atherogenic ApoE-/- mice fed a high-fat diet as compared with controls...
February 10, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28184324/comparison-of-anticancer-effects-of-carbamazepine-and-valproic-acid
#12
Ladan Akbarzadeh, Taraneh Moini Zanjani, Masoumeh Sabetkasaei
BACKGROUND: Valproic acid (VPA) and carbamazepine (CBZ), two widely used antiepileptic drugs, have recently been found to inhibit histone deacetylases (HDAC). HDAC inhibitors (HDACIs) have various effects on cancer cells. OBJECTIVES: The aim of this study was to compare the anticancer activity of these drugs on SW480 colon cancer cell lines. METHODS: In the present experimental study, implemented during 2014 - 2015 in Iran, after incubation of cells into 96-well plates with 5,500 cells/well, the tested drugs were added, and cytotoxic effects were assessed by MTT...
October 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28183258/progress-in-the-discovery-of-macrocyclic-histone-deacetylase-inhibitors-for-the-treatment-of-cancer
#13
Kai Cheng, Siyu Li, Chenzhong Liao
Histone deacetylases (HDACs) play key roles in many biological phenomena and HDAC inhibition has been proved to be an effective strategy in cancer therapy. Over the last few decades, a plethora of structurally diverse HDAC inhibitors have been reported for a broad range of tumor indications. Among them, macrocyclic HDAC inhibitors, including cyclic peptides, depsipeptides and peptidomimetics, etc., have drawn lots of interests because of the fact that macrocyclic HDAC inhibitors have the potential for member or isoform selective inhibition...
February 8, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28181261/the-search-for-potent-small-molecule-hdacis-in-cancer-treatment-a-decade-after-vorinostat
#14
REVIEW
Chiara Zagni, Giuseppe Floresta, Giulia Monciino, Antonio Rescifina
Histone deacetylases (HDACs) play a crucial role in the remodeling of chromatin, and are involved in the epigenetic regulation of gene expression. In the last decade, inhibition of HDACs came out as a target for specific epigenetic changes associated with cancer and other diseases. Until now, more than 20 HDAC inhibitors (HDACIs) have entered clinical studies, and some of them (e.g., vorinostat, romidepsin) have been approved for the treatment of cutaneous T-cell lymphoma. This review provides an overview of current knowledge, progress, and molecular mechanisms of HDACIs, covering a period from 2011 until 2015...
February 9, 2017: Medicinal Research Reviews
https://www.readbyqxmd.com/read/28178760/histone-deacetylase-7-silencing-induces-apoptosis-and-autophagy-in-salivary-mucoepidermoid-carcinoma-cells
#15
Mee-Young Ahn, Jung-Hoon Yoon
BACKGROUND: The overexpression of histone deacetylases (HDACs) has been observed in many cancers and inhibition of specific HDACs has emerged as a new target for cancer therapy. We found that HDAC7 expression was selectively reduced by HDAC inhibitor apicidin in salivary mucoepidermoid carcinoma (MEC) cells. Here, we show that HDAC7 suppression has a potent anti-tumor effect in MEC cells. METHODS: HDAC7 was knocked down using HDAC7 siRNAs and cell proliferation was quantified...
February 8, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28177689/selective-inhibition-of-hdac2-by-magnesium-valproate-attenuates-cardiac-hypertrophy
#16
Suchi Raghunathan, Ramesh Goyal, Bhoomika Mayur Patel
The regulatory paradigm in cardiac hypertrophy involves alterations in gene expression that is mediated by chromatin remodeling. Various data suggest that class I and class II histone deacetylases (HDACs) play opposing roles in the regulation of hypertrophic pathways. To address this, we tested the effect of magnesium valproate (MgV), an HDAC inhibitor with 5 times more potency on Class I HDAC. Cardiac hypertrophy was induced by Partial abdominal aortic constriction in wistar rats, and at end of 6 weeks, we evaluated hypertrophic, hemodynamic and oxidative stress parameters, and mitochondrial DNA concentration...
December 8, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28176653/multimodal-hdac-inhibitors-with-improved-anticancer-activity
#17
Rainer Schobert, Bernhard Biersack
Histone deacetylases (HDACs) play a significant role in the proliferation and dissemination of cancer and represent promising epigenetic drug targets. The HDAC inhibitor vorinostat featuring a zinc-binding hydroxamate fragment was already clinically approved. However, HDAC inhibitors containing hydroxamic acids are often hampered by acquired or intrinsic drug resistance and may lead to enhanced tumor aggressiveness. In order to overcome these drawbacks of hydroxamate HDAC inhibitors a series of multimodal derivatives of this compound class, including such with different zinc-binding groups, was recently developed and showed promising anticancer activity...
February 5, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28176652/mechanisms-for-inhibition-of-colon-cancer-cells-by-sulforaphane-through-epigenetic-modulation-of-microrna-21-and-human-telomerase-reverse-transcriptase-htert-down-regulation
#18
Samantha L Martin, Rishabh Kala, Trygve O Tollefsbol
Epigenetic modulations such as histone modifications are becoming increasingly valued for their ability to modify genes without altering the DNA sequence. Many bioactive compounds have been shown to alter genetic and epigenetic profiles in various forms of 6 cancers. Of the many dietary phytochemicals, sulforaphane (SFN), found in cruciferous vegetables such as kale, cabbage and broccoli sprouts, has been present as one of the most potent (histone deacetylase) HDAC inhibitors to date. Recently, it has been 9 identified that HDAC inhibitors may play a vital role in regulating microRNAs (miRNAs) in many human cancers...
February 5, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28175303/friedreich-ataxia-induced-pluripotent-stem-cell-derived-neurons-show-a-cellular-phenotype-that-is-corrected-by-a-benzamide-hdac-inhibitor
#19
Franca Codazzi, Amelié Hu, Myriam Rai, Simona Donatello, Floramarida Salerno Scarzella, Elisabeth Mangiameli, Ilaria Pelizzoni, Fabio Grohovaz, Massimo Pandolfo
No abstract text is available yet for this article.
November 15, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/28174211/overlapping-and-divergent-actions-of-structurally-distinct-hdac-inhibitors-in-cardiac-fibroblasts
#20
Katherine B Schuetze, Matthew S Stratton, Weston W Blakeslee, Michael F Wempe, Florence F Wagner, Edward B Holson, Yin-Ming Kuo, Andrew J Andrews, Tonya M Gilbert, Jacob M Hooker, Timothy A McKinsey
Inhibitors of zinc-dependent histone deacetylases (HDACs) profoundly impact cellular function by altering gene expression via changes in nucleosomal histone tail acetylation. Historically, investigators have employed pan-HDAC inhibitors, such as the hydroxamate trichostatin A (TSA), which simultaneously targets members of each of the three zinc-dependent HDAC classes (classes I, II and IV). More recently, class- and isoform-selective HDAC inhibitors have been developed, providing invaluable chemical biology probes for dissecting the roles of distinct HDACs in the control of various physiological and pathophysiological processes...
February 7, 2017: Journal of Pharmacology and Experimental Therapeutics
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