keyword
MENU ▼
Read by QxMD icon Read
search

trichostatin a

keyword
https://www.readbyqxmd.com/read/29327812/hyper-acetylation-contributes-to-the-sensitivity-of-chemo-resistant-prostate-cancer-cells-to-histone-deacetylase-inhibitor-trichostatin-a
#1
Qingqing Xu, Xiaofei Liu, Shiqin Zhu, Xuelei Hu, Huanmin Niu, Xiulei Zhang, Deyu Zhu, Effat Un Nesa, Keli Tian, Huiqing Yuan
Therapeutic agents are urgently needed for treating metastatic castration-refractory prostate cancer (mCRPC) that is unresponsive to androgen deprivation and chemotherapy. Our screening assays demonstrated that chemotherapy-resistant prostate cancer (PCa) cells are more sensitive to HDAC inhibitors than paired sensitive PCa cells, as demonstrated by cell proliferation and apoptosis in vitro and in vivo. Kinetic study revealed that TSA-induced apoptosis was significantly dependent on enhanced transcription and protein synthesis in an early stage, which subsequently caused ER stress and apoptosis...
January 12, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29303911/histone-deacetylase-inhibition-restores-expression-of-hypoxia-inducible-protein-ndrg1-in-pancreatic-cancer
#2
Céline Tiffon
OBJECTIVES: N-myc downstream-regulated gene-1 (NDRG1) is a hypoxia-inducible and differentiation-related protein and candidate biomarker in pancreatic cancer. As NDRG1 expression is lost in high-grade tumors, the effects of the differentiating histone deacetylase inhibitor trichostatin A (TSA) were examined in human pancreatic cancer cell lines representing different tumor grades. METHODS: PANC-1 (poorly differentiated) and Capan-1 (moderately to well differentiated) cells were treated with TSA...
January 5, 2018: Pancreas
https://www.readbyqxmd.com/read/29301535/inhibition-of-histone-deacetylase-activity-rescues-inflammatory-cystic-fibrosis-lung-disease-by-modulating-innate-and-adaptive-immune-responses
#3
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/29301062/regulatory-roles-of-histone-deacetylases-1-and-2-in-pb-induced-neurotoxicity
#4
Yulan Wu, Yi Xu, Xiyao Huang, Danlei Ye, Miaomiao Han, Hui-Li Wang
Lead (Pb) prevails among the environmental hazards against human health. Although increasing evidence highlights the epigenetic roles underlying the Pb-induced neurotoxicity, the exact mechanisms concerning histone acetylation and its causative agents are still at its infancy. In the present study, the roles of histone deacetylases 1 and 2 (HDAC1/2), as well as histone H3 Lys9 acetylation (Ac-H3K9), in Pb-induced neurotoxicity were investigated. Pb was administered to PC12 cells at 10 μM for 24 hours. And Sprague- Dawley rats were chronically exposed to Pb through drinking water containing 250 ppm Pb for 2 months...
January 2, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29286617/genistein-and-trichostatin-a-induction-of-estrogen-receptor-alpha-gene-expression-apoptosis-and-cell-growth-inhibition-in-hepatocellular-carcinoma-hepg-2-cells
#5
Masumeh Sanaei, Fraidoon Kavoosi, Habibeh Salehi
Epigenetic changes such as DNA methylation and histone acetylation play important roles in determining gene expression. Hypermethylation of CpG islands of the promoter region of tumor suppressor genes can greatly influence carcinogenesis through transcriptional silencing. Acetylation of lysine in histone tails causes relaxation of chromatin, which facilitates gene transcription, while deacetylation is associated with condensed chromatin resulting in gene silencing. DNA demethylating agents such as genistein (GE) and histone deacetylase inhibitors (HDACIs) such as trichostatin A (TSA) may strongly reactivate silenced genes and exposure to these two agents in combination is reported to enhance estrogen receptor alpha (ERα) reactivation and induction of apoptosis...
December 29, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29285008/microwave-assisted-synthesis-and-antitumor-evaluation-of-a-new-series-of-thiazolylcoumarin-derivatives
#6
Moustafa T Gabr, Nadia S El-Gohary, Eman R El-Bendary, Mohamed M El-Kerdawy, Nanting Ni
A new series of thiazolylcoumarin derivatives was synthesized. The designed strategy embraced a molecular hybridization approach which involves the combination of the thiazole and coumarin pharmacophores together. The new hybrid compounds were tested for in vitro antitumor efficacy over cervical (Hela) and kidney fibroblast (COS-7) cancer cells. Compounds 5f, 5h, 5m and 5r displayed promising efficacy toward Hela cell line. In addition, 5h and 5r were found to be the most active candidates toward COS-7 cell line...
2017: EXCLI Journal
https://www.readbyqxmd.com/read/29277014/effects-of-trichostatin-a-on-pig-scnt-blastocyst-formation-rate-and-cell-number-a-meta-analysis
#7
REVIEW
Zhenhua Guo, Lei Lv, Di Liu, Bo Fu
Although somatic cell nuclear transfer (SCNT) can be used to create transgenic pigs for human xenotransplantation, low efficiency limits its use. Trichostatin A (TSA) promotes SCNT embryo development, but whether TSA modifies SCNT blastocyst numbers is unclear. Thus, there is an urgent need to understand whether TSA modifies the rate and number of embryos that grow from oocytes to blastocysts in culture and what types of cell signaling pathways may be involved. Thus, we identified 63 reports, of which 13 are included in this meta-analysis...
December 18, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29274335/cd36-mediates-lipid-accumulation-in-pancreatic-beta-cells-under-the-duress-of-glucolipotoxic-conditions-novel-roles-of-lysine-deacetylases
#8
Sabbir Khan, Anjaneyulu Kowluru
The cluster of differentiation 36 (CD36) is implicated in the intake of long-chain fatty acids and fat storage in various cell types including the pancreatic beta cell, thus contributing to the pathogenesis of metabolic stress and diabetes. Recent evidence indicates that CD36 undergoes post-translational modifications such as acetylation-deacetylation. However, putative roles of such modifications in its functional activation and onset of beta cell dysregulation under the duress of glucolipotoxicity (GLT) remain largely unknown...
December 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29248540/sodium-butyrate-triggers-a-functional-elongation-of-microglial-process-via-akt-small-rhogtpase-activation-and-hdacs-inhibition
#9
Peng Wang, Yaru Zhang, Yu Gong, Rongrong Yang, Zhuo Chen, Wenfeng Hu, Yue Wu, Minhui Gao, Xing Xu, Yibin Qin, Chao Huang
Microglia, a type of immune cell in the brain, are in a ramified status with branched processes in normal conditions. Upon pathological stimulation, microglia retract their processes and become activated. Searching methods to make the activated microglia return to ramified status would help cope with injuries induced by neuroinflammation. Here, we investigated the influence of sodium butyrate (SB), a sodium salt form of butyrate produced by fermentation of dietary fibers in the gut on microglial process. Results showed that SB induced reversible elongations of microglial process in both normal and inflammatory conditions, and these elongations were accompanied with significant changes in markers reflecting the pro-inflammatory and anti-inflammatory status of microglia...
December 14, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/29235036/expression-of-dha-metabolizing-enzyme-alox15-is-regulated-by-selective-histone-acetylation-in-neuroblastoma-cells
#10
Christabel Fung-Yih Ho, Claire Poh-Ee Bon, Yee-Kong Ng, Deron R Herr, Jui-Sheng Wu, Teng-Nan Lin, Wei-Yi Ong
The omega-3 polyunsaturated fatty acid, docosahexaenoic acid (DHA) is enriched in neural membranes of the CNS, and recent studies have shown a role of DHA metabolism by 15-lipoxygenase-1 (Alox15) in prefrontal cortex resolvin D1 formation, hippocampo-prefrontal cortical long-term-potentiation, spatial working memory, and anti-nociception/anxiety. In this study, we elucidated epigenetic regulation of Alox15 via histone modifications in neuron-like cells. Treatment of undifferentiated SH-SY5Y human neuroblastoma cells with the histone deacetylase (HDAC) inhibitors trichostatin A (TSA) and sodium butyrate significantly increased Alox15 mRNA expression...
December 12, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/29233643/trichostatin-a-inhibits-deacetylation-of-histone-h3-and-p53-by-sirt6
#11
Marci Wood, Stacia Rymarchyk, Song Zheng, Yana Cen
SIRT6 is an epigenetic modification enzyme that regulates gene transcription through its deacetylase activity. In addition to histone protein, SIRT6 also modify other proteins and enzymes, some of which are central players in metabolic reprogramming and aging process. Therefore, SIRT6 has emerged as a therapeutic target for the treatment of metabolic disorder and age-related diseases. Here, we report that SIRT6 deacetylates lysine 382 of p53 in short synthetic peptide sequence and in full length p53. Further studies showed that the deacetylation of H3K9Ac and p53K382Ac are insensitive to nicotinamide inhibition, but are sensitive to trichostatin A (TSA) inhibition...
December 9, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29222813/reln-signaling-modulates-glioblastoma-growth-and-substrate-dependent-migration
#12
Markus Schulze, Christ Violonchi, Stefan Swoboda, Tobias Welz, Eugen Kerkhoff, Sabine Hoja, Susanne Brüggemann, Johann Simbürger, Jörg Reinders, Markus J Riemenschneider
Glioblastoma (GBM) represents the most common and most malignant type of primary brain tumor and significantly contributes to cancer morbidity and mortality. Invasion into the healthy brain parenchyma is a major feature of glioblastoma aggressiveness. Reelin (RELN) is a large secreted extracellular matrix glycoprotein that regulates neuronal migration and positioning in the developing brain and sustains functionality in the adult brain. We here show that both RELN and its main downstream effector DAB1 are silenced in glioblastoma as compared to non-neoplastic tissue and mRNA expression is inversely correlated with malignancy grade...
December 8, 2017: Brain Pathology
https://www.readbyqxmd.com/read/29203661/unusual-zinc-binding-mode-of-hdac6-selective-hydroxamate-inhibitors
#13
Nicholas J Porter, Adaickapillai Mahendran, Ronald Breslow, David W Christianson
Histone deacetylases (HDACs) regulate myriad cellular processes by catalyzing the hydrolysis of acetyl-l-lysine residues in histone and nonhistone proteins. The Zn2+-dependent class IIb enzyme HDAC6 regulates microtubule function by deacetylating α-tubulin, which suppresses microtubule dynamics and leads to cell cycle arrest and apoptosis. Accordingly, HDAC6 is a target for the development of selective inhibitors that might be useful in new therapeutic approaches for the treatment of cancer, neurodegenerative diseases, and other disorders...
December 4, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29184569/the-seed-repair-response-during-germination-disclosing-correlations-between-dna-repair-antioxidant-response-and-chromatin-remodeling-in-medicago-truncatula
#14
Andrea Pagano, Susana de Sousa Araújo, Anca Macovei, Paola Leonetti, Alma Balestrazzi
This work provides novel insights into the effects caused by the histone deacetylase inhibitor trichostatin A (TSA) during Medicago truncatula seed germination, with emphasis on the seed repair response. Seeds treated with H2O and TSA (10 and 20 μM) were collected during imbibition (8 h) and at the radicle protrusion phase. Biometric data showed delayed germination and impaired seedling growth in TSA-treated samples. Comet assay, performed on radicles at the protrusion phase and 4-days old M. truncatula seedlings, revealed accumulation of DNA strand breaks upon exposure to TSA...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29184483/h3k9ac-and-hdac2-activity-are-involved-in-the-expression-of-monocarboxylate-transporter-1-in-oligodendrocyte
#15
Qingwei Lai, Wantong Du, Jian Wu, Xiao Wang, Xinyu Li, Xuebin Qu, Xiuxiang Wu, Fuxing Dong, Ruiqin Yao, Hongbin Fan
Recently, it is reported that monocarboxylate transporter 1 (MCT1) plays crucial role in oligodendrocyte differentiation and myelination. We found that MCT1 is strongly expressed in oligodendrocyte but weakly expressed in oligodendrocyte precursors (OPCs), and the underlying mechanisms remain elusive. Histone deacetylases (HDACs) activity is required for induction of oligodendrocyte differentiation and maturation. We asked whether HDACs are involved in the regulation of MCT1 expression. This work revealed that the acetylation level of histone H3K9 (H3K9ac) was much higher in mct1 gene (Slc16a1) promoter in OPCs than that in oligodendrocyte...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29169361/differentiation-of-human-adipose-derived-stem-cells-into-cardiomyocyte-like-cells-in-fibrin-scaffold-by-a-histone-deacetylase-inhibitor
#16
Zahra Bagheri-Hosseinabadi, Parvin Salehinejad, Seyed Alireza Mesbah-Namin
BACKGROUND: Human adipose-derived stem cells (hADSCs) are capable of differentiating into many cells such as cardiac cells. Different types of inducers are used for cardiac cell differentiation, but this question still remains to be investigated, which one is the best. The aim of this paper was to investigate the effect of combination of fibrin scaffold and trichostatin A (TSA), for differentiation of hADSCs into cardiomyocyte-like cells. METHODS: After approval of characteristics of hADSCs and fibrin scaffold, hADSCs were cultured in fibrin scaffold with 10 µM TSA for 72 h and kept in standard conditions for 4 weeks...
November 23, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/29157123/trichostatin-a-induces-nag-1-expression-and-apoptosis-in-human-endometriotic-stromal-cells
#17
Seok Kyo Seo, Jae Hoon Lee, Seung Joo Chon, Bo Hyon Yun, Sihyun Cho, Young Sik Choi, Byung Seok Lee
To investigate the effects of trichostatin A (TSA) on nonsteroidal anti-inflammatory drug-activated gene 1 (NAG-1) expression and apoptosis in human endometriotic stromal cells (HESCs), ectopic endometrial tissues were obtained from 15 patients with endometriotic cysts who underwent cystectomy. Human endometriotic stromal cells were isolated and cultured with different concentrations of TSA. Nonsteroidal anti-inflammatory drug-activated gene-1 messenger RNA (mRNA) and protein levels were evaluated by real-time polymerase chain reaction and Western blotting, respectively, and apoptosis was assessed by flow cytometry...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/29151363/functional-assessment-of-human-enhancer-activities-using-whole-genome-starr-sequencing
#18
Yuwen Liu, Shan Yu, Vineet K Dhiman, Tonya Brunetti, Heather Eckart, Kevin P White
BACKGROUND: Genome-wide quantification of enhancer activity in the human genome has proven to be a challenging problem. Recent efforts have led to the development of powerful tools for enhancer quantification. However, because of genome size and complexity, these tools have yet to be applied to the whole human genome. RESULTS:  In the current study, we use a human prostate cancer cell line, LNCaP as a model to perform whole human genome STARR-seq (WHG-STARR-seq) to reliably obtain an assessment of enhancer activity...
November 20, 2017: Genome Biology
https://www.readbyqxmd.com/read/29142427/cinnamaldehyde-cinnamic-acid-and-cinnamyl-alcohol-the-bioactives-of-cinnamomum-cassia-exhibit-hdac8-inhibitory-activity-an-in-vitro-and-in-silico-study
#19
Mangesh Patil, Amit S Choudhari, Savita Pandita, Md Ataul Islam, Prerna Raina, Ruchika Kaul-Ghanekar
Background: The altered expression of histone deacetylase family member 8 (HDAC8) has been found to be linked with various cancers, thereby making its selective inhibition a potential strategy in cancer therapy. Recently, plant secondary metabolites, particularly phenolic compounds, have been shown to possess HDAC inhibitory activity. Objective: In the present work, we have evaluated the potential of cinnamaldehyde (CAL), cinnamic acid (CA), and cinnamyl alcohol (CALC) (bioactives of Cinnamomum) as well as aqueous cinnamon extract (ACE), to inhibit HDAC8 activity in vitro and in silico...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29111742/increased-post-translational-lysine-acetylation-of-myelin-basic-protein-is-associated-with-peak-neurological-disability-in-a-mouse-experimental-autoimmune-encephalomyelitis-model-of-multiple-sclerosis
#20
Ryan Lillico, Ting Zhou, Tina Khorshid Ahmad, Nicholas Stesco, Kiana Gozda, Jessica Truong, Jiming Kong, Ted M Lakowski, Michael Namaka
Citrullination of arginine residues is a post-translational modification (PTM) found on myelin basic protein (MBP), which neutralizes MBPs positive charge, and is implicated in myelin damage and multiple sclerosis (MS). Here we identify lysine acetylation as another neutralizing PTM to MBP that may be involved in myelin damage. We quantify changes in lysine and arginine PTMs on MBP derived from mice induced with an experimental autoimmune encephalomyelitis (EAE) model of MS using liquid chromatography tandem mass spectrometry...
November 7, 2017: Journal of Proteome Research
keyword
keyword
81204
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"