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Histone deacetylase inhibitor

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https://www.readbyqxmd.com/read/28340413/design-synthesis-and-biological-evaluation-of-novel-coumarin-based-benzamides-as-potent-histone-deacetylase-inhibitors-and-anticancer-agents
#1
Tooba Abdizadeh, Mohammad Reza Kalani, Khalil Abnous, Zahra Tayarani-Najaran, Bibi Zahra Khashyarmanesh, Rahman Abdizadeh, Razieh Ghodsi, Farzin Hadizadeh
Histone deacetylases (HDACs) are attractive therapeutic targets for the treatment of cancer and other diseases. It has four classes (I-IV), among them especially class I isozyme are involved in promoting tumor cells proliferation, angiogenesis, differentiation, invasion and metastasis and also viable targets for cancer therapeutics. A novel series of coumarin-based benzamides was designed and synthesized as HDAC inhibitors. The cytotoxic activity of the synthesized compounds (8a-u) was evaluated against six human cancer cell lines including HCT116, A2780, MCF7, PC3, HL60 and A549 and a single normal cell line (Huvec)...
March 18, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28338993/dihydrocelastrol-inhibits-multiple-myeloma-cell-proliferation-and-promotes-apoptosis-through-erk1-2-and-il-6-stat3-pathways-in-vitro-and-in-vivo
#2
Liangning Hu, Huiqun Wu, Bo Li, Dongliang Song, Guang Yang, Gege Chen, Bingqian Xie, Zhijian Xu, Yong Zhang, Dandan Yu, Jun Hou, Wenqin Xiao, Xi Sun, Gaomei Chang, Yiwen Zhang, Lu Gao, Bojie Dai, Yi Tao, Jumei Shi, Weiliang Zhu
Multiple myeloma (MM) is the second most frequent malignant hematological disease. Dihydrocelastrol (DHCE) is synthesized by hydrogenated celastrol, a treterpene isolated from Chinese medicinal plant Tripterygium regelii. In this study, we first reported the anti-tumor activity of DHCE on MM cells. We found that DHCE could inhibit cell proliferation and promote apoptosis through caspase-dependent way in vitro. In addition, DHCE could inactivate the expression of interleukin (IL)-6 and downregulate the phosphorylation of extracellular regulated protein kinases (ERK1/2) and the signal transducer and activator of transcription 3 (STAT3) in MM...
March 17, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28338404/effect-of-histone-deacetylase-inhibitor-butyroyloxymethyl-diethyl-phosphate-an-7-on-corneal-neovascularization-in-a-mouse-model
#3
Michal Schaap-Fogler, Irit Bahar, Ada Rephaeli, Mor Dahbash, Abraham Nudelman, Eitan Livny, Tilda Barliya, Yael Nisgav, Tami Livnat
PURPOSE: To examine whether butyroyloxymethyl-diethyl phosphate (AN-7), a histone deacetylase inhibitor, inhibits chemically induced corneal neovascularization (NV) in mice. METHODS: Corneal NV was induced in the right eye of male C57BL mice by application of a mixture of 75% silver nitrate and 25% potassium nitrate to the corneal center. Immediately thereafter, the mice were randomized into 2 groups, receiving an intraperitoneal injection of AN-7 or saline, which served as control...
March 24, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28338101/the-histone-deacetylase-inhibitor-valproic-acid-inhibits-nkg2d-expression-in-natural-killer-cells-through-suppression-of-stat3-and-hdac3
#4
Lulu Ni, Lixin Wang, Chao Yao, Zhongya Ni, Fei Liu, Chenyuan Gong, Xiaowen Zhu, Xuewei Yan, Stephanie S Watowich, Dean A Lee, Shiguo Zhu
NKG2D is a major activating receptor of NK cells and plays a critical role in tumor immunosurveillance. NKG2D expression in NK cells is inhibited by the histone deacetylase (HDAC) inhibitor valproic acid (VPA) and enhanced by the narrow-spectrum HDAC inhibitor entinostat. We previously demonstrated that entinostat enhanced NKG2D transcription by increasing acetylation of Histones H3 and H4. However, the mechanism by which VPA reduces NKG2D expression in NK cells is not known. We have also shown that NKG2D transcription is regulated by STAT3 phosphorylation...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337317/structural-requirements-of-hdac-inhibitors-saha-analogues-modified-at-the-c2-position-display-hdac6-8-selectivity
#5
Ahmed T Negmeldin, Geetha Padige, Anton V Bieliauskas, Mary Kay H Pflum
Histone deacetylase (HDAC) proteins are epigenetic regulators that deacetylate protein substrates, leading to subsequent changes in cell function. HDAC proteins are implicated in cancers, and several HDAC inhibitors have been approved by the FDA as anticancer drugs, including SAHA (suberoylanilide hydroxamic acid; Vorinostat and Zolinza). Unfortunately, SAHA inhibits most HDAC isoforms, which limits its use as a pharmacological tool and may lead to side effects in the clinic. In this work SAHA analogues substituted at the C2 position were synthesized and screened for HDAC isoform selectivity in vitro and in cells...
March 9, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28336407/development-of-n-hydroxycinnamamide-based-hdac-inhibitors-with-improved-hdac-inhibitory-activity-and-in-vitro-antitumor-activity
#6
Jie Zang, Baowen Shi, Xuewu Liang, Qianwen Gao, Wenfang Xu, Yingjie Zhang
Histone deacetylase inhibitors (HDACIs) are promising in the treatment of various diseases, among which cancer treatment has achieved the most success. We have previously developed series of HDACIs combining N-hydroxycinnamamide bioactive fragment and indole bioactive fragment, which showed moderate to potent antitumor activities. Herein, further structural derivatization based on our previous structure-activity relationship (SAR) got 25 novel compounds. Most compounds showed much more potent histone deacetylases (HDACs) inhibitory activity than their parent compound 1 and even the positive control SAHA...
December 7, 2016: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28333449/epigenetic-modulation-of-endophytic-eupenicillium-sp-lg41-by-a-histone-deacetylase-inhibitor-for-production-of-decalin-containing-compounds
#7
Gang Li, Souvik Kusari, Christopher Golz, Hartmut Laatsch, Carsten Strohmann, Michael Spiteller
An endophytic fungus, Eupenicillium sp. LG41, isolated from the Chinese medicinal plant Xanthium sibiricum, was subjected to epigenetic modulation using an NAD(+)-dependent histone deacetylase (HDAC) inhibitor, nicotinamide. Epigenetic stimulation of the endophyte led to enhanced production of two new decalin-containing compounds, eupenicinicols C and D (3 and 4), along with two biosynthetically related known compounds, eujavanicol A (1) and eupenicinicol A (2). The structures and stereochemistry of the new compounds were elucidated by extensive spectroscopic analysis using LC-HRMS, NMR, optical rotation, and ECD calculations, as well as single-crystal X-ray diffraction...
March 23, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28332716/mir-124-and-mir-9-mediated-downregulation-of-hdac5-promotes-neurite-development-through-activating-mef2c-gpm6a-pathway
#8
Xi Gu, Congcong Fu, Lifang Lin, Shuhu Liu, Xiaohong Su, Aili Li, Qiaoqi Wu, Chunhong Jia, Peidong Zhang, Lu Chen, Xinhong Zhu, Xuemin Wang
The class IIa histone deacetylases (HDACs) play important roles in the central nervous system during diverse biological processes such as synaptic plasticity, axon regeneration, cell apoptosis, and neural differentiation. Although it is known that HDAC5 regulates neuronal differentiation, neither the physiological function nor the regulation of HDAC5 in neuronal differentiation is clear. Here, we identify HDAC5 as an inhibitor of neurite elongation and show that HDAC5 is regulated by the brain enriched microRNA miR-124 and miR-9...
March 23, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28332438/quantitative-structure-activity-relationship-analysis-and-virtual-screening-studies-for-identifying-hdac2-inhibitors-from-known-hdac-bioactive-chemical-libraries
#9
H Pham-The, G Casañola-Martin, K Diéguez-Santana, N Nguyen-Hai, N T Ngoc, L Vu-Duc, H Le-Thi-Thu
Histone deacetylases (HDAC) are emerging as promising targets in cancer, neuronal diseases and immune disorders. Computational modelling approaches have been widely applied for the virtual screening and rational design of novel HDAC inhibitors. In this study, different machine learning (ML) techniques were applied for the development of models that accurately discriminate HDAC2 inhibitors form non-inhibitors. The obtained models showed encouraging results, with the global accuracy in the external set ranging from 0...
March 2017: SAR and QSAR in Environmental Research
https://www.readbyqxmd.com/read/28331226/the-histone-deacetylase-inhibitor-givinostat-itf2357-exhibits-potent-anti-tumor-activity-against-crlf2-rearranged-bcp-all
#10
A M Savino, J Sarno, L Trentin, M Vieri, G Fazio, M Bardini, C Bugarin, G Fossati, K Davis, G Gaipa, S Izraeli, L H Meyer, G P Nolan, A Biondi, G Te Kronnie, C Palmi, G Cazzaniga
Leukemias bearing CRLF2 and JAK2 gene alterations are characterized by aberrant JAK/STAT signaling and poor prognosis. The HDAC inhibitor givinostat/ITF2357 has been shown to exert antineoplastic activity against both systemic juvenile idiopathic arthritis and myeloproliferative neoplasms through inhibition of the JAK/STAT pathway. These findings led us to hypothesize that givinostat might also act against CRLF2-rearranged BCP-ALL, which lack effective therapies. Here, we found that givinostat inhibited proliferation and induced apoptosis of BCP-ALL CRLF2-rearranged cell lines, positive for exon 16 JAK2 mutations...
March 23, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28326839/entinostat-a-promising-treatment-option-for-patients-with-advanced-breast-cancer
#11
Roisin M Connolly, Michelle A Rudek, Richard Piekarz
Entinostat is a synthetic benzamide derivative histone deacetylase (HDAC) inhibitor, which potently and selectively inhibits class I and IV HDAC enzymes. This action promotes histone hyperacetylation and transcriptional activation of specific genes, with subsequent inhibition of cell proliferation, terminal differentiation and apoptosis. This oral HDAC inhibitor has been evaluated in Phase I and II trials in patients with advanced malignancies, and is in general well tolerated. Entinostat does not currently have regulatory approval for clinical use; however promising preclinical and clinical data exist in hormone-resistant breast cancer...
March 9, 2017: Future Oncology
https://www.readbyqxmd.com/read/28326191/global-histone-modification-fingerprinting-in-human-cells-using-epigenetic-reverse-phase-protein-array
#12
Marina Partolina, Hazel C Thoms, Kenneth G MacLeod, Giovanny Rodriguez-Blanco, Matthew N Clarke, Anuroop V Venkatasubramani, Rima Beesoo, Vladimir Larionov, Vidushi S Neergheen-Bhujun, Bryan Serrels, Hiroshi Kimura, Neil O Carragher, Alexander Kagansky
The balance between acetylation and deacetylation of histone proteins plays a critical role in the regulation of genomic functions. Aberrations in global levels of histone modifications are linked to carcinogenesis and are currently the focus of intense scrutiny and translational research investments to develop new therapies, which can modify complex disease pathophysiology through epigenetic control. However, despite significant progress in our understanding of the molecular mechanisms of epigenetic machinery in various genomic contexts and cell types, the links between epigenetic modifications and cellular phenotypes are far from being clear...
2017: Cell Death Discovery
https://www.readbyqxmd.com/read/28325256/how-have-evolutions-in-strategies-for-the-treatment-of-relapsed-refractory-multiple-myeloma-translated-into-improved-outcomes-for-patients
#13
REVIEW
Pieter Sonneveld, Edwin De Wit, Philippe Moreau
Although multiple myeloma (MM) remains incurable, the introduction of novel agents has improved clinical outcomes dramatically over the past 15 years. Response rates have risen from ∼30% with single agents to up to 90% with combination therapies. The immunomodulatory drugs (IMiDs) thalidomide and lenalidomide, and the proteasome inhibitor bortezomib, form the foundations for treatment of relapsed and/or refractory MM (RRMM). Newer agents, such as the IMiD pomalidomide, the histone deacetylase inhibitor panobinostat and the proteasome inhibitors carfilzomib and ixazomib, as well as the monoclonal antibodies daratumumab and elotuzumab, have further improved overall response rates in these patients...
April 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28322796/modulation-of-the-sphingolipid-rheostat-is-involved-in-paclitaxel-resistance-of-the-human-prostate-cancer-cell-line-pc3-pr
#14
Yuka Aoyama, Sayaka Sobue, Naoki Mizutani, Chisato Inoue, Yoshiyuki Kawamoto, Yuji Nishizawa, Masatoshi Ichihara, Mamoru Kyogashima, Motoshi Suzuki, Yoshinoti Nozawa, Takashi Murate
Taxoids are anti-cancer drugs frequently used to treat solid tumors, but they are sometimes ineffective and tumors may become resistant to their action. Here, we examined the involvement of sphingolipid metabolic enzymes in paclitaxel (PTX) resistance using a human prostate cancer cell line, PC3, and its PTX-resistant subline, PC3-PR. PTX (20 nM) suppressed cell proliferation and increased various ceramide species in PC3, but not PC3-PR, cells. PC3-PR contained higher S1P levels than did PC3, regardless of PTX treatment...
March 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28322226/highly-effective-combination-of-lsd1-kdm1a-antagonist-and-pan-histone-deacetylase-inhibitor-against-human-aml-cells
#15
W Fiskus, S Sharma, B Shah, B P Portier, S G T Devaraj, K Liu, S P Iyer, D Bearss, K N Bhalla
No abstract text is available yet for this article.
March 21, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28321257/class-specific-histone-deacetylase-inhibitors-promote-11-beta-hydroxysteroid-dehydrogenase-type-2-expression-in-jeg-3-cells
#16
Katie L Togher, Louise C Kenny, Gerard W O'Keeffe
Exposure to maternal cortisol plays a crucial role in fetal organogenesis. However, fetal overexposure to cortisol has been linked to a range of short- and long-term adverse outcomes. Normally, this is prevented by the expression of an enzyme in the placenta called 11-beta hydroxysteroid dehydrogenase type 2 (11β-HSD2) which converts active cortisol to its inactive metabolite cortisone. Placental 11β-HSD2 is known to be reduced in a number of adverse pregnancy complications, possibly through an epigenetic mechanism...
2017: International Journal of Cell Biology
https://www.readbyqxmd.com/read/28321036/a-highly-potent-and-selective-histone-deacetylase-6-inhibitor-prevents-dss-induced-colitis-in-mice
#17
Ting Liu, Renping Wang, Haojie Xu, Yunlong Song, Yunpeng Qi
Inflammatory bowel disease (IBD) is a refractory illness with remarkably increasing incidence rate all over the world. However, no desirable treatment scheme is available. Therefore, research and development of new drugs for treating IBD are urgently needed. Histone deacetylase 6 (HDAC6) is considered to be a pro-inflammatory factor, thus the inhibitors specifically-targeting HDAC6 may find their way in IBD treatment. In this study, we evaluated the anti-inflammatory activity of a novel potent and selective HDAC6 inhibitor, LTB2, in dextran sulfate sodium (DSS)-induced colitis mouse model...
March 17, 2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28320962/genetic-disruption-of-oncogenic-kras-sensitizes-lung-cancer-cells-to-fas-receptor-mediated-apoptosis
#18
Haiwei Mou, Jill Moore, Sunil K Malonia, Yingxiang Li, Deniz M Ozata, Soren Hough, Chun-Qing Song, Jordan L Smith, Andrew Fischer, Zhiping Weng, Michael R Green, Wen Xue
Genetic lesions that activate KRAS account for ∼30% of the 1.6 million annual cases of lung cancer. Despite clinical need, KRAS is still undruggable using traditional small-molecule drugs/inhibitors. When oncogenic Kras is suppressed by RNA interference, tumors initially regress but eventually recur and proliferate despite suppression of Kras Here, we show that tumor cells can survive knockout of oncogenic Kras, indicating the existence of Kras-independent survival pathways. Thus, even if clinical KRAS inhibitors were available, resistance would remain an obstacle to treatment...
March 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28319066/nucleus-accumbens-associated-protein-1-promotes-glycolysis-and-survival-of-hypoxic-tumor-cells-via-the-hdac4-hif-1%C3%AE-axis
#19
Y Zhang, Y-J Ren, L-C Guo, C Ji, J Hu, H-H Zhang, Q-H Xu, W-D Zhu, Z-J Ming, Y-S Yuan, X Ren, J Song, J-M Yang
Nucleus accumbens-associated protein-1 (NAC1), a nuclear factor of the BTB/POZ gene family, has emerging roles in cancer. In this study, we identified the NAC1-HDAC4-HIF-1α axis as an important pathway in regulating glycolysis and hypoxic adaptation in tumor cells. We show that nuclear NAC1 binds to histone deacetylase type 4 (HDAC4), hindering phosphorylation of HDAC4 at Ser(246) and preventing its nuclear export that leads to cytoplasmic degradation of the deacetylase. Accumulation of HDAC4 in the nuclei results in an attenuation of HIF-1α acetylation, enhancing the stabilization and transcriptional activity of HIF-1α and strengthening adaptive response of cells to hypoxia...
March 20, 2017: Oncogene
https://www.readbyqxmd.com/read/28317157/design-and-synthesis-of-novel-anti-plasmodial-histone-deacetylase-inhibitors-containing-an-alkoxyamide-connecting-unit
#20
Leandro A Alves Avelar, Jana Held, Jessica A Engel, Parichat Sureechatchaiyan, Finn K Hansen, Alexandra Hamacher, Matthias U Kassack, Benjamin Mordmüller, Katherine T Andrews, Thomas Kurz
Despite recent declines in mortality, malaria remains an important global health problem. New therapies are needed, including new drugs with novel modes of action compared to existing agents. Among new potential therapeutic targets for malaria, inhibition of parasitic histone deacetylases (HDACs) is a promising approach. Homology modeling of PfHDAC1, a known target of some anti-plasmodial HDAC inhibitors, revealed a unique threonine residue at the rim of the active site in close proximity to the location of the cap group of vorinostat-type HDAC inhibitors...
March 20, 2017: Archiv der Pharmazie
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