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Histone deacetylase inhibitor

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https://www.readbyqxmd.com/read/28230635/valproic-acid-modulates-platelet-and-coagulation-function-ex-vivo
#1
Ted Bambakidis, Simone E Dekker, Ihab Halaweish, Baoling Liu, Vahagn C Nikolian, Patrick E Georgoff, Patryk Piascik, Yongqing Li, Martin Sillesen, Hasan B Alam
Trauma-induced coagulopathy is associated with adverse patient outcome. Animal models demonstrate that histone deacetylase inhibitors, such as valproic acid (VPA), improve survival following injury. While in-vivo data suggest that improved survival may in part be because of an attenuation of coagulopathy, it remains unknown whether this is a direct effect of the drug, or the establishment of an overall prosurvival phenotype. We thus conducted an ex-vivo experiment to determine if VPA has an effect on coagulation and platelet function...
February 21, 2017: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/28228258/clonal-expansion-of-lgr5-positive-cells-from-mammalian-cochlea-and-high-purity-generation-of-sensory-hair-cells
#2
Will J McLean, Xiaolei Yin, Lin Lu, Danielle R Lenz, Dalton McLean, Robert Langer, Jeffrey M Karp, Albert S B Edge
Death of cochlear hair cells, which do not regenerate, is a cause of hearing loss in a high percentage of the population. Currently, no approach exists to obtain large numbers of cochlear hair cells. Here, using a small-molecule approach, we show significant expansion (>2,000-fold) of cochlear supporting cells expressing and maintaining Lgr5, an epithelial stem cell marker, in response to stimulation of Wnt signaling by a GSK3β inhibitor and transcriptional activation by a histone deacetylase inhibitor...
February 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28224725/quisinostat-treatment-improves-histone-acetylation-and-developmental-competence-of-porcine-somatic-cell-nuclear-transfer-embryos
#3
Long Jin, Qing Guo, Hai-Ying Zhu, Xiao-Xu Xing, Guang-Lei Zhang, Mei-Fu Xuan, Qi-Rong Luo, Zhao-Bo Luo, Jun-Xia Wang, Xi-Jun Yin, Jin-Dan Kang
Abnormal epigenetic modifications are considered a main contributing factor to low cloning efficiency. In the present study, we explored the effects of quisinostat, a novel histone deacetylase inhibitor, on blastocyst formation rate in porcine somatic-cell nuclear transfer (SCNT) embryos, on acetylation of histone H3 lysine 9 (AcH3K9), and on expression of POU5F1 protein and apoptosis-related genes BAX and BCL2. Our results showed that treatment with 10 nM quisinostat for 24 h significantly improved the development of reconstructed embryos compared to the untreated group (19...
February 22, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28223544/hdac8-functions-in-spindle-assembly-during-mouse-oocyte-meiosis
#4
Kemei Zhang, Yajuan Lu, Chaohua Jiang, Wei Liu, Jing Shu, Xueqin Chen, Yingjiao Shi, Ensheng Wang, Li Wang, Qinbo Hu, Yibo Dai, Bo Xiong
HDAC8 is a class I histone deacetylase that functions in a variety of biological processes through its non-histone substrates. However, its roles during oocyte meiosis remain elusive. Here, we document that HDAC8 localizes at spindle poles and positively participates in the regulation of microtubule organization and spindle assembly in mouse oocytes. Depletion of HDAC8 by siRNA-based gene silencing results in various spindle defects and chromosome misalignment during oocyte meiotic maturation, accompanied by impaired kinetochore-microtubule attachments...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28223126/targeted-inhibition-of-hdac8-increases-the-doxorubicin-sensitivity-of-neuroblastoma-cells-via-up-regulation-of-mir-137
#5
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
#6
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/28221861/inhibiting-histone-deacetylase-as-a-means-to-reverse-resistance-to-angiogenesis-inhibitors-phase-i-study-of-abexinostat-plus-pazopanib-in-advanced-solid-tumor-malignancies
#7
Rahul Aggarwal, Scott Thomas, Nela Pawlowska, Imke Bartelink, Jennifer Grabowsky, Thierry Jahan, Amy Cripps, Armand Harb, Jim Leng, Anne Reinert, Ilaria Mastroserio, Thach-Giao Truong, Charles J Ryan, Pamela N Munster
Purpose This phase I trial evaluated epigenetic modulation of vascular endothelial growth factor (VEGF) and hypoxia-inducible factor by using a histone deacetylase abexinostat in combination with pazopanib to enhance response and reverse resistance. Patients and Methods Pazopanib was administered once a day on days 1 to 28 and abexinostat was administered orally twice a day on days 1 to 5, 8 to 12, and 15 to 19 (schedule A) or on days 1 to 4, 8 to 11, and 15 to 18 (schedule B). Dose escalation (3 + 3 design) in all solid tumors was followed by dose expansion in renal cell carcinoma (RCC)...
February 21, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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
#8
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/28213282/design-synthesis-and-biological-evaluation-of-thienopyrimidine-hydroxamic-acid-based-derivatives-as-structurally-novel-histone-deacetylase-hdac-inhibitors
#9
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
#10
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
#11
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
#12
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/28195362/low-intensity-ultrasound-enhances-histone-acetylation-and-inhibition-of-interleukin-6-messenger-rna-expression-by-the-histone-deacetylase-inhibitor-sodium-butyrate-in-fibroblasts
#13
Noriaki Maeshige, Yuka Koga, Masayuki Tanaka, Michiko Aoyama-Ishikawa, Makoto Miyoshi, Makoto Usami, Hidemi Fujino
OBJECTIVES: Sodium butyrate, an inhibitor of histone deacetylase, has several therapeutic actions, including anti-inflammation. These actions depend on the concentration of sodium butyrate. In addition, lower concentrations have shown no effect on inflammation. Sonoporation by ultrasound can modify the permeability of the cell plasma membrane. Thus, the effects of sodium butyrate may be enhanced by the ultrasonic acoustics. Therefore, the facilitative effects of low-intensity ultrasound on histone acetylation and interleukin 6 (IL-6) regulation by sodium butyrate were investigated in this study...
February 3, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28194101/contribution-of-neuroepigenetics-to-huntington-s-disease
#14
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/28193631/histone-deacetylase-inhibitors-correct-the-cholesterol-storage-defect-in-most-npc1-mutant-cells
#15
Nina H Pipalia, Kanagaraj Subramanian, Shu Mao, Harold Ralph, Darren M Hutt, Samantha M Scott, William E Balch, Frederick R Maxfield
Niemann Pick C disease (NPC) is an autosomal recessive disorder that leads to excessive storage of cholesterol and other lipids in late endosomes and lysosomes. The large majority of NPC disease is caused by mutations in NPC1, a large polytopic membrane protein that functions in late endosomes. There are many disease-associated mutations in NPC1, and most patients are compound heterozygotes. The most common mutation NPC1I1061T has been shown to cause endoplasmic reticulum associated degradation of the NPC1 protein...
February 13, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28192098/anti-leukemic-effects-of-hdaci-belinostat-and-hmti-3-deazaneplanocin-a-on-human-acute-promyelocytic-leukemia-cells
#16
Giedrė Valiulienė, Ieva Stirblytė, Monika Jasnauskaitė, Veronika Borutinskaitė, Rūta Navakauskienė
Development of acute myeloid leukemia is usually sustained by deregulated epigenome. Alterations in DNA methylation and histone modifications are common manifestations of the disease. Acute promyelocytic leukemia (APL) is not an exception. Therefore, drugs that target epigenetic processes suggest an appealing strategy for APL treatment. In this study we tested the anti-leukemic activity of histone deacetylase inhibitor (HDACi) Belinostat (PXD101, (2E)-N-Hydroxy-3-[3-(phenylsulfamoyl)phenyl]prop-2-enamide), and histone methyltransferase inhibitor (HMTi) 3-Deazaneplanocin A (DZNep, 5R-(4-amino-1H-imidazo[4,5-c]pyridin-1-yl)-3-(hydroxymethyl)-3-cyclopentene-1S,2R-diol) combined with retinoic acid (RA) in APL cells NB4 and HL-60...
February 10, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28191472/suppression-of-excessive-histone-deacetylases-activity-in-diabetic-hearts-attenuates-myocardial-ischemia-reperfusion-injury-via-mitochondria-apoptosis-pathway
#17
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/28188358/protective-effect-of-valproic-acid-in-streptozotocin-induced-sporadic-alzheimer-s-disease-mouse-model-possible-involvement-of-the-cholinergic-system
#18
Mirna Ezzat Sorial, Nesrine Salah El Dine El Sayed
Sporadic Alzheimer's disease (SAD) is a slowly progressive neurological disorder that is the most common form of dementia. Cholinergic system dysfunction and amyloid beta formation are the two main underlying pathological mechanisms for the disease development. In recent studies, insulin receptor desensitization and disturbances in the downstream effects of insulin receptor signaling were observed in the brains of Alzheimer's patients. Currently, intracereberoventricular (ICV) injection of streptozotocin (STZ) is found to induce behavioral, neurochemical, and structural alterations in animals resembling those found in SAD patients...
February 10, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28188262/mapk-signaling-pathways-and-hdac3-activity-are-disrupted-during-emerin-null-myogenic-progenitor-differentiation
#19
Carol M Collins, Joseph Ellis, James M Holaska
Mutations in the gene encoding emerin cause Emery-Dreifuss muscular dystrophy (EDMD). Emerin is an integral inner nuclear membrane protein and a component of the nuclear lamina. EDMD is characterized by skeletal muscle wasting, cardiac conduction defects and tendon contractures. The failure to regenerate skeletal muscle is predicted to contribute to the skeletal muscle pathology of EDMD. We hypothesize muscle regeneration defects are caused by impaired muscle stem cell differentiation. Myogenic progenitors derived from emerin-null mice were used to confirm their impaired differentiation and analyze selected myogenic molecular pathways...
February 10, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28188215/cystathionine-gamma-lyase-protects-vascular-endothelium-a-role-for-inhibition-of-histone-deacetylase-6
#20
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
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