1
|
Verrillo L, Di Palma R, de Bellis A, Drongitis D, Miano MG. Suberoylanilide Hydroxamic Acid (SAHA) Is a Driver Molecule of Neuroplasticity: Implication for Neurological Diseases. Biomolecules 2023; 13:1301. [PMID: 37759701 PMCID: PMC10526795 DOI: 10.3390/biom13091301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/17/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
Neuroplasticity is a crucial property of the central nervous system to change its activity in response to intrinsic or extrinsic stimuli. This is mainly achieved through the promotion of changes in the epigenome. One of the epi-drivers priming this process is suberoylanilide hydroxamic acid (SAHA or Vorinostat), a pan-histone deacetylase inhibitor that modulates and promotes neuroplasticity in healthy and disease conditions. Knowledge of the specific molecular changes induced by this epidrug is an important area of neuro-epigenetics for the identification of new compounds to treat cognition impairment and/or epilepsy. In this review, we summarize the findings obtained in cellular and animal models of various brain disorders, highlighting the multiple mechanisms activated by SAHA, such as improvement of memory, learning and behavior, and correction of faulty neuronal functioning. Supporting this evidence, in vitro and in vivo data underline how SAHA positively regulates the expression of neuronal genes and microtubule dynamics, induces neurite outgrowth and spine density, and enhances synaptic transmission and potentiation. In particular, we outline studies regarding neurodevelopmental disorders with pharmaco-resistant seizures and/or severe cognitive impairment that to date lack effective drug treatments in which SAHA could ameliorate defective neuroplasticity.
Collapse
Affiliation(s)
- Lucia Verrillo
- Institute of Genetics and Biophysics Adriano Buzzati-Traverso, CNR, 80131 Naples, Italy; (L.V.); (R.D.P.)
| | - Rosita Di Palma
- Institute of Genetics and Biophysics Adriano Buzzati-Traverso, CNR, 80131 Naples, Italy; (L.V.); (R.D.P.)
| | - Alberto de Bellis
- A.O.R.N. S. Anna and S. Sebastiano Hospital, Division of Neurosurgery, 81100 Caserta, Italy;
- Maria Rosaria Maglione Foundation Onlus, 80122 Naples, Italy
| | - Denise Drongitis
- Institute of Genetics and Biophysics Adriano Buzzati-Traverso, CNR, 80131 Naples, Italy; (L.V.); (R.D.P.)
- Maria Rosaria Maglione Foundation Onlus, 80122 Naples, Italy
| | - Maria Giuseppina Miano
- Institute of Genetics and Biophysics Adriano Buzzati-Traverso, CNR, 80131 Naples, Italy; (L.V.); (R.D.P.)
| |
Collapse
|
2
|
Kovalenko M, Erdin S, Andrew MA, St Claire J, Shaughnessey M, Hubert L, Neto JL, Stortchevoi A, Fass DM, Mouro Pinto R, Haggarty SJ, Wilson JH, Talkowski ME, Wheeler VC. Histone deacetylase knockouts modify transcription, CAG instability and nuclear pathology in Huntington disease mice. eLife 2020; 9:55911. [PMID: 32990597 PMCID: PMC7581428 DOI: 10.7554/elife.55911] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 09/28/2020] [Indexed: 12/13/2022] Open
Abstract
Somatic expansion of the Huntington’s disease (HD) CAG repeat drives the rate of a pathogenic process ultimately resulting in neuronal cell death. Although mechanisms of toxicity are poorly delineated, transcriptional dysregulation is a likely contributor. To identify modifiers that act at the level of CAG expansion and/or downstream pathogenic processes, we tested the impact of genetic knockout, in HttQ111 mice, of Hdac2 or Hdac3 in medium-spiny striatal neurons that exhibit extensive CAG expansion and exquisite disease vulnerability. Both knockouts moderately attenuated CAG expansion, with Hdac2 knockout decreasing nuclear huntingtin pathology. Hdac2 knockout resulted in a substantial transcriptional response that included modification of transcriptional dysregulation elicited by the HttQ111 allele, likely via mechanisms unrelated to instability suppression. Our results identify novel modifiers of different aspects of HD pathogenesis in medium-spiny neurons and highlight a complex relationship between the expanded Htt allele and Hdac2 with implications for targeting transcriptional dysregulation in HD.
Collapse
Affiliation(s)
- Marina Kovalenko
- Center for Genomic Medicine, Harvard Medical School, Boston, United States
| | - Serkan Erdin
- Center for Genomic Medicine, Harvard Medical School, Boston, United States.,Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, United States
| | - Marissa A Andrew
- Center for Genomic Medicine, Harvard Medical School, Boston, United States
| | - Jason St Claire
- Center for Genomic Medicine, Harvard Medical School, Boston, United States
| | | | - Leroy Hubert
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, United States
| | - João Luís Neto
- Center for Genomic Medicine, Harvard Medical School, Boston, United States
| | - Alexei Stortchevoi
- Center for Genomic Medicine, Harvard Medical School, Boston, United States
| | - Daniel M Fass
- Center for Genomic Medicine, Harvard Medical School, Boston, United States
| | - Ricardo Mouro Pinto
- Center for Genomic Medicine, Harvard Medical School, Boston, United States.,Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, United States
| | - Stephen J Haggarty
- Center for Genomic Medicine, Harvard Medical School, Boston, United States.,Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, United States
| | - John H Wilson
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, United States
| | - Michael E Talkowski
- Center for Genomic Medicine, Harvard Medical School, Boston, United States.,Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, United States.,Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, United States
| | - Vanessa C Wheeler
- Center for Genomic Medicine, Harvard Medical School, Boston, United States.,Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, United States
| |
Collapse
|
3
|
Song Q, Li M, Fan C, Liu Y, Zheng L, Bao Y, Sun L, Yu C, Song Z, Sun Y, Wang G, Huang Y, Li Y. A novel benzamine lead compound of histone deacetylase inhibitor ZINC24469384 can suppresses HepG2 cells proliferation by upregulating NR1H4. Sci Rep 2019; 9:2350. [PMID: 30787420 PMCID: PMC6382829 DOI: 10.1038/s41598-019-39487-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 01/16/2019] [Indexed: 12/18/2022] Open
Abstract
Histone deacetylases (HDACs) can enzymatically transferred acetyl functional group from protein or lysine residues of histone, so they can regulate the expression of lots of genes. Now HDACs are used as drug targets and many HDAC inhibitors (HDACis) were approved for cancer therapy or in clinical trials. However, the physiological mechanisms and regulatory processes of HDACi anti-cancer effects are largely unexplored and uncompleted. Here we use the virtual screening workflow obtained 25 hit compounds and ZINC24469384 can significantly inhibit HDAC activity while arrest cell cycle at G1/S phase and significantly induced HepG2 cell apoptosis, time-course RNA-seq demonstrate that HepG2 cells transcriptionally respond to ZINC24469384. Pathway analysis of DEGs and DASGs reveal that NR1H4 may play an important role in ZINC24469384-induced anti-proliferation effect and is dramatically alleviated by down-regulating the SOCS2 expression and promoting STAT3 phosphorylation in knockdown NR1H4 HepG2 cells. Analysis based on TCGA database indicated that NR1H4 and SOCS2 were downregulated in liver cancer, this suggest NR1H4 and SOCS2 may play an important role in tumorigenesis. These results indicated that ZINC24469384 is a novel benzamine lead compound of HDACi and provides a novel mechanism for HDACi to inhibit cancer.
Collapse
Affiliation(s)
- Qiuhang Song
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Mingyue Li
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Cong Fan
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Yucui Liu
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Lihua Zheng
- Research Center of Agriculture and Medicine gene Engineering of Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Yongli Bao
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Luguo Sun
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Chunlei Yu
- Research Center of Agriculture and Medicine gene Engineering of Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Zhenbo Song
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Ying Sun
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China
| | - Guannan Wang
- Research Center of Agriculture and Medicine gene Engineering of Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Yanxin Huang
- National Engineering Laboratory for Druggable Gene and Protein Screening, Northeast Normal University, Changchun, 130024, China.
| | - Yuxin Li
- Research Center of Agriculture and Medicine gene Engineering of Ministry of Education, Northeast Normal University, Changchun, 130024, China.
| |
Collapse
|
4
|
Caruano J, Muccioli GG, Robiette R. Biologically active γ-lactams: synthesis and natural sources. Org Biomol Chem 2018; 14:10134-10156. [PMID: 27748489 DOI: 10.1039/c6ob01349j] [Citation(s) in RCA: 253] [Impact Index Per Article: 42.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The γ-lactam moiety is present in a large number of natural and non-natural biologically active compounds. The range of biological activities covered by these compounds is very broad. Functionalized γ-lactams are thus of high interest and have great potential in medicinal chemistry. This review provides a description of the title compounds by focusing on their synthesis, natural sources and biological activities.
Collapse
Affiliation(s)
- J Caruano
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Louis Pasteur 1 box L4.01.02, 1348 Louvain-la-Neuve, Belgium. and Louvain Drug Research Institute, Université catholique de Louvain, Av. E. Mounier 73 box B1.72.01, 1200 Brussels, Belgium
| | - G G Muccioli
- Louvain Drug Research Institute, Université catholique de Louvain, Av. E. Mounier 73 box B1.72.01, 1200 Brussels, Belgium
| | - R Robiette
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Louis Pasteur 1 box L4.01.02, 1348 Louvain-la-Neuve, Belgium.
| |
Collapse
|
5
|
Cheng-Sánchez I, García-Ruiz C, Guerrero-Vásquez GA, Sarabia F. An Olefin Cross-Metathesis Approach to Depudecin and Stereoisomeric Analogues. J Org Chem 2017; 82:4744-4757. [PMID: 28397496 DOI: 10.1021/acs.joc.7b00424] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A new total synthesis of the natural product (-)-depudecin, a unique and unexplored histone deacetylase (HDAC) inhibitor, is reported. A key feature of the synthesis is the utilization of an olefin cross-metathesis strategy, which provides for an efficient and improved access to natural depudecin, compared with our previous linear synthesis. Featured by its brevity and convergency, our developed synthetic strategy was applied to the preparation of the 10-epi derivative and the enantiomer of depudecin, which represent interesting stereoisomeric analogues for structure-activity relationship studies.
Collapse
Affiliation(s)
- Iván Cheng-Sánchez
- Department of Organic Chemistry, Faculty of Sciences, University of Malaga , Campus de Teatinos s/n, 29071, Malaga, Spain
| | - Cristina García-Ruiz
- Department of Organic Chemistry, Faculty of Sciences, University of Malaga , Campus de Teatinos s/n, 29071, Malaga, Spain
| | - Guillermo A Guerrero-Vásquez
- Department of Organic Chemistry, Faculty of Sciences, University of Malaga , Campus de Teatinos s/n, 29071, Malaga, Spain
| | - Francisco Sarabia
- Department of Organic Chemistry, Faculty of Sciences, University of Malaga , Campus de Teatinos s/n, 29071, Malaga, Spain
| |
Collapse
|
6
|
Song M, He G, Wang Y, Pang X, Zhang B. Lentivirus-mediated Knockdown of HDAC1 Uncovers Its Role in Esophageal Cancer Metastasis and Chemosensitivity. J Cancer 2016; 7:1694-1700. [PMID: 27698906 PMCID: PMC5039390 DOI: 10.7150/jca.15086] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 06/07/2016] [Indexed: 01/28/2023] Open
Abstract
Histone deacetylationase 1 (HDAC1) is ubiquitously expressed in various cell lines and tissues and play an important role of regulation gene expression. Overexpression of HDAC1 has been observed in various types of cancers, which indicated that it might be a target for cancer therapy. To test HDAC1 inhibition for cancer treatment, the gene expression of HDAC1 was knockdown mediated by a lentivirus system. Our data showed the gene expression of HDAC1 could be efficiently knockdown by RNAi mediated by lentivirus in esophageal carcinoma EC109 cells. Knockdown of HDAC1 led to significant decrease of cell growth and altered cell cycle distribution. The result of transwell assay showed that the numbers of cells travelled through the micropore membrane was significantly decreased as HDAC1 expression was knockdown. Moreover, HDAC1 knockdown inhibited the migration of EC109 cells as determining by scratch test. Additionally, enhancement of cisplatin-stimulated apoptosis was detected by HDAC1 knockdown. Our data suggested inhibition of HDAC1 expression by lentivirus mediated shRNA might be further applied for esophageal cancer chemotherapy.
Collapse
Affiliation(s)
- Min Song
- Department of Medical Genetics, Third Military Medical University; Department of neurology, the second Affiliated Hospital of Chongqing Medical University
| | - Gang He
- Department of Medical Genetics, Third Military Medical University
| | - Yan Wang
- Department of Medical Genetics, Third Military Medical University
| | - Xueli Pang
- Department of oncology, Southwest Hospital, Third Military Medical University
| | - Bo Zhang
- Department of Medical Genetics, Third Military Medical University
| |
Collapse
|
7
|
Novel cinnamohydroxamic acid derivatives as HDAC inhibitors with anticancer activity in vitro and in vivo. Chem Biol Interact 2016; 249:64-70. [PMID: 26944433 DOI: 10.1016/j.cbi.2016.02.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Revised: 02/11/2016] [Accepted: 02/25/2016] [Indexed: 11/23/2022]
Abstract
A novel series of cinnamohydroxamic acid derivatives were synthesized and their biological activities against HDAC were assessed. Our results showed that the compound with more strong inhibitory activity to HDAC would exhibited more significant anti-proliferative effect on tumor cells. Among these compounds, 7e displayed clearly inhibitory effects on HDAC and tumor cell growth. Furthermore, HDAC isoforms enzyme data indicated that, compared to HDAC pan-inhibitor SAHA, 7e owned an enhanced inhibitory effect on HDAC1, 3 and 6 isoforms. Meanwhile, it also significantly suppressed cell growth of lung cancer cells compared to SAHA, but with lower toxicity in normal cells. Mechanistically, 7e prompted acetylation of histone3 and histone4, led to up-regulation of p21, and then mediated cell cycle arrest and pro-apoptosis. Moreover, the in vivo study indicated that compound 7e could retard tumor growth of A549 xenograft models. These findings support the further investigation on the anti-tumor potential of this class of compounds as HDAC inhibitor.
Collapse
|
8
|
Zhou W, Zhu W, Ma L, Xiao F, Qian W. Proteasome inhibitor MG-132 enhances histone deacetylase inhibitor SAHA-induced cell death of chronic myeloid leukemia cells by an ROS-mediated mechanism and downregulation of the Bcr-Abl fusion protein. Oncol Lett 2015; 10:2899-2904. [PMID: 26722260 DOI: 10.3892/ol.2015.3665] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Accepted: 06/25/2015] [Indexed: 01/21/2023] Open
Abstract
Recently, there has been progress in the treatment of chronic myeloid leukemia (CML). However, novel therapeutic strategies are required in order to address the emerging problem of imatinib resistance. Histone deacetylase inhibitors (HDACi) and proteasome inhibitors are promising alternatives, and may be amenable to integration with current therapeutic approaches. However, the mechanisms underlying the interaction between these two agents remain unclear. The present study assessed the cytotoxic effect of the HDACi, suberoylanilide hydroxamic acid (SAHA), in combination with the proteasome inhibitor, MG-132, in imatinib-sensitive K562 and imatinib-resistant K562G cells, and investigated the mechanism underlying this effect. Cell viability was measured using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide method and protein expression levels were determined by western blotting. Reactive oxygen species (ROS) generation levels were observed under a fluorescence microscope The results indicated that SAHA and MG-132 act in a synergistic manner to induce cell death in K562 and K562G cells. This effect was associated with Bcr-Abl downregulation and the production of ROS. Notably, the ROS scavenger, N-acetyl-L-cysteine, almost fully reversed the cell death and Bcr-Abl downregulation that was induced by the combination of SAHA and MG-132. By contrast, the pan-caspase inhibitor, z-VAD-fmk, only partially reversed the cell death induced by these two drugs in CML cells. These results indicated that increased intracellular ROS levels are important in the induction of cell death and the downregulation of Bcr-Abl. In conclusion, the present results suggested that combined SAHA and MG-132 may be a promising treatment for CML.
Collapse
Affiliation(s)
- Wenjing Zhou
- Institute of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Weiwei Zhu
- Institute of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Liya Ma
- Institute of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Feng Xiao
- Institute of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| | - Wenbin Qian
- Institute of Hematology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, P.R. China
| |
Collapse
|
9
|
Knockdown of Rad9A enhanced DNA damage induced by trichostatin A in esophageal cancer cells. Tumour Biol 2015; 37:963-70. [DOI: 10.1007/s13277-015-3879-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 07/30/2015] [Indexed: 12/24/2022] Open
|
10
|
Miceli M, Bontempo P, Nebbioso A, Altucci L. Natural compounds in epigenetics: a current view. Food Chem Toxicol 2014; 73:71-83. [PMID: 25139119 DOI: 10.1016/j.fct.2014.08.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 08/06/2014] [Accepted: 08/08/2014] [Indexed: 01/03/2023]
Abstract
The successful treatment of many human diseases, including cancer, has come to be considered a major challenge, as patient response to therapy is difficult to predict. Recently, considerable efforts are being focused on the development of new tools to meet the growing demand for personalized medicine. With few exceptions, synthetic compounds have been unable to meet initial expectations for their clinical use. The last twenty years have been characterized by the failure of several drugs in advanced clinical development, possibly due to the insufficient understanding of molecular pathways underlying their mechanism of action. Although the biodiversity of compounds found in nature has been poorly explored until now, the field of naturally occurring drugs is rapidly expanding. Here, we review the current knowledge on the use of natural compounds with particular emphasis on those that display a chromatin remodeling effect coupled with anticancer action.
Collapse
Affiliation(s)
- Marco Miceli
- Dipartimento di Biochimica, Biofisica e Patologia Generale, Seconda Universita' di Napoli, Via L. De Crecchio 7, 80138 Napoli, Italy; Istituto di Genetica e Biofisica, Adriano Buzzati-Traverso, IGB, Via P. Castellino 111, 80131 Napoli, Italy
| | - Paola Bontempo
- Dipartimento di Biochimica, Biofisica e Patologia Generale, Seconda Universita' di Napoli, Via L. De Crecchio 7, 80138 Napoli, Italy
| | - Angela Nebbioso
- Dipartimento di Biochimica, Biofisica e Patologia Generale, Seconda Universita' di Napoli, Via L. De Crecchio 7, 80138 Napoli, Italy
| | - Lucia Altucci
- Dipartimento di Biochimica, Biofisica e Patologia Generale, Seconda Universita' di Napoli, Via L. De Crecchio 7, 80138 Napoli, Italy; Istituto di Genetica e Biofisica, Adriano Buzzati-Traverso, IGB, Via P. Castellino 111, 80131 Napoli, Italy.
| |
Collapse
|
11
|
Cacan E, Ali MW, Boyd NH, Hooks SB, Greer SF. Inhibition of HDAC1 and DNMT1 modulate RGS10 expression and decrease ovarian cancer chemoresistance. PLoS One 2014; 9:e87455. [PMID: 24475290 PMCID: PMC3903677 DOI: 10.1371/journal.pone.0087455] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 12/25/2013] [Indexed: 11/28/2022] Open
Abstract
RGS10 is an important regulator of cell survival and chemoresistance in ovarian cancer. We recently showed that RGS10 transcript expression is suppressed during acquired chemoresistance in ovarian cancer. The suppression of RGS10 is due to DNA hypermethylation and histone deacetylation, two important mechanisms that contribute to silencing of tumor suppressor genes during cancer progression. Here, we fully investigate the molecular mechanisms of epigenetic silencing of RGS10 expression in chemoresistant A2780-AD ovarian cancer cells. We identify two important epigenetic regulators, HDAC1 and DNMT1, that exhibit aberrant association with RGS10 promoters in chemoresistant ovarian cancer cells. Knockdown of HDAC1 or DNMT1 expression, and pharmacological inhibition of DNMT or HDAC enzymatic activity, significantly increases RGS10 expression and cisplatin-mediated cell death. Finally, DNMT1 knock down also decreases HDAC1 binding to the RGS10 promoter in chemoresistant cells, suggesting HDAC1 recruitment to RGS10 promoters requires DNMT1 activity. Our results suggest that HDAC1 and DNMT1 contribute to the suppression of RGS10 during acquired chemoresistance and support inhibition of HDAC1 and DNMT1 as an adjuvant therapeutic approach to overcome ovarian cancer chemoresistance.
Collapse
Affiliation(s)
- Ercan Cacan
- Division of Cellular Biology and Immunology, Center for Inflammation, Immunity and Infection, Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
| | - Mourad W. Ali
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens, Georgia, United States of America
| | - Nathaniel H. Boyd
- Division of Cellular Biology and Immunology, Center for Inflammation, Immunity and Infection, Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
| | - Shelley B. Hooks
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia, Athens, Georgia, United States of America
| | - Susanna F. Greer
- Division of Cellular Biology and Immunology, Center for Inflammation, Immunity and Infection, Department of Biology, Georgia State University, Atlanta, Georgia, United States of America
- * E-mail:
| |
Collapse
|
12
|
Lemper M, Snykers S, Vanhaecke T, De Paepe K, Rogiers V. Current Status of Healthy Human Skin Models: Can Histone Deacetylase Inhibitors Potentially Improve the Present Replacement Models? Skin Pharmacol Physiol 2014; 27:36-46. [DOI: 10.1159/000351363] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 03/24/2013] [Indexed: 11/19/2022]
|
13
|
Sánchez-Tena S, Vizán P, Dudeja P, Centelles J, Cascante M. Green tea phenolics inhibit butyrate-induced differentiation of colon cancer cells by interacting with monocarboxylate transporter 1. BIOCHIMICA ET BIOPHYSICA ACTA 2013; 1832:2264-70. [PMID: 23994611 PMCID: PMC4889458 DOI: 10.1016/j.bbadis.2013.08.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 07/24/2013] [Accepted: 08/20/2013] [Indexed: 12/16/2022]
Abstract
Diet has a significant impact on colorectal cancer and both dietary fiber and plant-derived compounds have been independently shown to be inversely related to colon cancer risk. Butyrate (NaB), one of the principal products of dietary fiber fermentation, induces differentiation of colon cancer cell lines by inhibiting histone deacetylases (HDACs). On the other hand, (-)-epicatechin (EC) and (-)-epigallocatechin gallate (EGCG), two abundant phenolic compounds of green tea, have been shown to exhibit antitumoral properties. In this study we used colon cancer cell lines to study the cellular and molecular events that take place during co-treatment with NaB, EC and EGCG. We found that (i) polyphenols EC and EGCG fail to induce differentiation of colon adenocarcinoma cell lines; (ii) polyphenols EC and EGCG reduce NaB-induced differentiation; (iii) the effect of the polyphenols is specific for NaB, since differentiation induced by other agents, such as trichostatin A (TSA), was unaltered upon EC and EGCG treatment, and (iv) is independent of the HDAC inhibitory activity of NaB. Also, (v) polyphenols partially reduce cellular NaB; and (vi) on a molecular level, reduction of cellular NaB uptake by polyphenols is achieved by impairing the capacity of NaB to relocalize its own transporter (monocarboxylate transporter 1, MCT1) in the plasma membrane. Our findings suggest that beneficial effects of NaB on colorectal cancer may be reduced by green tea phenolic supplementation. This valuable information should be of assistance in choosing a rational design for more effective diet-driven therapeutic interventions in the prevention or treatment of colorectal cancer.
Collapse
Affiliation(s)
- S. Sánchez-Tena
- Department of Biochemistry and Molecular Biology, IBUB, Faculty of Biology, Universitat de Barcelona and Unit Associated with CSIC, 08028 Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - P. Vizán
- Department of Biochemistry and Molecular Biology, IBUB, Faculty of Biology, Universitat de Barcelona and Unit Associated with CSIC, 08028 Barcelona, Spain
| | - P.K. Dudeja
- Section of Digestive Diseases and Nutrition, Department of Medicine, University of Illinois at Chicago and Jesse Brown VA Medical Center, Chicago, IL 60612, USA
| | - J.J. Centelles
- Department of Biochemistry and Molecular Biology, IBUB, Faculty of Biology, Universitat de Barcelona and Unit Associated with CSIC, 08028 Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - M. Cascante
- Department of Biochemistry and Molecular Biology, IBUB, Faculty of Biology, Universitat de Barcelona and Unit Associated with CSIC, 08028 Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| |
Collapse
|
14
|
He G, Wang Y, Pang X, Zhang B. Inhibition of autophagy induced by TSA sensitizes colon cancer cell to radiation. Tumour Biol 2013; 35:1003-11. [DOI: 10.1007/s13277-013-1134-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Accepted: 08/23/2013] [Indexed: 01/13/2023] Open
|
15
|
Montero-Melendez T, Dalli J, Perretti M. Gene expression signature-based approach identifies a pro-resolving mechanism of action for histone deacetylase inhibitors. Cell Death Differ 2013; 20:567-75. [PMID: 23222458 PMCID: PMC3595482 DOI: 10.1038/cdd.2012.154] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 10/25/2012] [Accepted: 10/29/2012] [Indexed: 12/20/2022] Open
Abstract
Despite several therapies being currently available to treat inflammatory diseases, new drugs to treat chronic conditions with less side effects and lower production costs are still needed. An innovative approach to drug discovery, the Connectivity Map (CMap), shows how integrating genome-wide gene expression data of drugs and diseases can accelerate this process. Comparison of genome-wide gene expression data generated with annexin A1 (AnxA1) with the CMap revealed significant alignment with gene profiles elicited by histone deacetylase inhibitors (HDACIs), what made us to hypothesize that AnxA1 might mediate the anti-inflammatory actions of HDACIs. Addition of HDACIs (valproic acid, sodium butyrate and thricostatin A) to mouse macrophages caused externalization of AnxA1 with concomitant inhibition of cytokine gene expression and release, events that occurred independently as this inhibition was retained in AnxA1 null macrophages. In contrast, novel AnxA1-mediated functions for HDACIs could be unveiled, including promotion of neutrophil apoptosis and macrophage phagocytosis, both steps crucial for effective resolution of inflammation. In a model of acute resolving inflammation, administration of valproic acid and sodium butyrate to mice at the peak of disease accelerated resolution processes in wild type, but much more modestly in AnxA1 null mice. Deeper analyses revealed a role for endogenous AnxA1 in the induction of neutrophil death in vivo by HDACIs. In summary, interrogation of the CMap revealed an unexpected association between HDACIs and AnxA1 that translated in mechanistic findings with particular impact on the processes that regulate the resolution of inflammation. We propose non-genomic modulation of AnxA1 in immune cells as a novel mechanism of action for HDACIs, which may underlie their reported efficacy in models of chronic inflammatory pathologies.
Collapse
Affiliation(s)
- T Montero-Melendez
- Barts and The London School of Medicine, William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, EC1M 6BQ, London, UK
| | - J Dalli
- Barts and The London School of Medicine, William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, EC1M 6BQ, London, UK
| | - M Perretti
- Barts and The London School of Medicine, William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, EC1M 6BQ, London, UK
| |
Collapse
|
16
|
Narita K, Fukui Y, Sano Y, Yamori T, Ito A, Yoshida M, Katoh T. Total synthesis of bicyclic depsipeptides spiruchostatins C and D and investigation of their histone deacetylase inhibitory and antiproliferative activities. Eur J Med Chem 2013; 60:295-304. [DOI: 10.1016/j.ejmech.2012.12.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2012] [Revised: 12/08/2012] [Accepted: 12/11/2012] [Indexed: 01/07/2023]
|
17
|
Choi E, Lee C, Cho M, Seo JJ, Yang JS, Oh SJ, Lee K, Park SK, Kim HM, Kwon HJ, Han G. Property-Based Optimization of Hydroxamate-Based γ-Lactam HDAC Inhibitors to Improve Their Metabolic Stability and Pharmacokinetic Profiles. J Med Chem 2012; 55:10766-70. [DOI: 10.1021/jm3009376] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Eunhyun Choi
- Severance Integrative Research Institute for Cerebral & Cardiovascular Disease, Yonsei University Health System, 250 Seongsanno, Seodaemun-Gu, Seoul 120-752, Republic of Korea
- Translational
Research Center
for Protein Function Control, Department of Biotechnology, Yonsei
University, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Chulho Lee
- Translational
Research Center
for Protein Function Control, Department of Biotechnology, Yonsei
University, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Misun Cho
- Translational
Research Center
for Protein Function Control, Department of Biotechnology, Yonsei
University, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Jeong Jea Seo
- Translational
Research Center
for Protein Function Control, Department of Biotechnology, Yonsei
University, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Jee Sun Yang
- Translational
Research Center
for Protein Function Control, Department of Biotechnology, Yonsei
University, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Soo Jin Oh
- Bioevaluation Center, Korea Research
Institute of Bioscience and Biotechnology, Yangcheong, Ochang, Cheongwon,
Chungbuk 363-883, Republic of Korea
| | - Kiho Lee
- College of Pharmacy, Korea University,
Yeongi, Chungnam 339-700, Republic of Korea
| | - Song-Kyu Park
- College of Pharmacy, Korea University,
Yeongi, Chungnam 339-700, Republic of Korea
| | - Hwan Mook Kim
- College of Pharmacy, Gachon
University of Medicine and Science, Incheon 406-799, Republic of Korea
| | - Ho Jeong Kwon
- Translational
Research Center
for Protein Function Control, Department of Biotechnology, Yonsei
University, Seodaemun-gu, Seoul 120-749, Republic of Korea
| | - Gyoonhee Han
- Translational
Research Center
for Protein Function Control, Department of Biotechnology, Yonsei
University, Seodaemun-gu, Seoul 120-749, Republic of Korea
- Department of Biomedical Sciences (WCU
Program), Yonsei University, Seodaemun-gu, Seoul 120-749, Republic
of Korea
| |
Collapse
|
18
|
Huang CY, Chi LL, Huang WJ, Chen YW, Chen WJ, Kuo YC, Yuan CM, Chen CN. Growth stimulating effect on queen bee larvae of histone deacetylase inhibitors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:6139-6149. [PMID: 22642680 DOI: 10.1021/jf300815b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Royal jelly (RJ) is a widely used natural food. It is also a major source of nutrition for queen bees and plays a key role in their development. RJ is secreted from the hypopharyngeal and mandibular glands of young adult worker bees. The regulation of gene expression in these two glands may influence the development of queen bees by affecting the content of RJ. This study investigated the epigenetic effects in these two glands in young adult worker bees treated with histone deacetylase inhibitors (HDACis), a U.S. Food and Drug Administration-approved drug, suberoylanilide hydroxamic acid (SAHA), and NBM-HD-1, a novel compound synthesized in this laboratory. Western blot analyses indicated that the levels of acetyl-histone 3 and p21 protein expression in MCF-7 cells increased markedly after treatment with NBM-HD-1. The data proved that NBM-HD-1 was a novel and potent HDACi. Furthermore, a method of affecting epigenetic regulation of the mrjp family gene in the hypopharyngeal and mandibular glands of young adult worker bees was developed by feeding young adult worker bees HDACi. Epigenetic regulation produced several important biological effects. A marked change in the protein composition of the RJ secreted from these treated bees was found. Only the ratio of specific major royal jelly protein 3 (MRJP3) was significantly altered in the treated bees versus the untreated controls. Other MRJP family proteins did not change. This alteration in the ratio of royal jelly proteins resulted in a significant increase in the body size of queen bee larvae. The data seem to suggest that HDACis may play an important role in the epigenetic regulation of the hypopharyngeal and mandibular glands of young adult worker bees. They appear to change mrjp3 gene expression and alter the ratio of MRJP3 protein in RJ. This study presents the first evidence that HDACis are capable of regulating the ratio of MRJP3 proteins in RJ, which has the potential to change the body size of queen bees during their development.
Collapse
Affiliation(s)
- Chung-Yang Huang
- New Drug Research and Development Center, NatureWise Biotech and Medicals Corporation, Taipei 115, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Liu Z, Xing M. Induction of sodium/iodide symporter (NIS) expression and radioiodine uptake in non-thyroid cancer cells. PLoS One 2012; 7:e31729. [PMID: 22359623 PMCID: PMC3281006 DOI: 10.1371/journal.pone.0031729] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2011] [Accepted: 01/12/2012] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND This study was designed to explore the therapeutic potential of suppressing MAP kinase and PI3K/Akt pathways and histone deacetylase (HDAC) to induce the expression of sodium/iodide symporter (NIS) and radioiodine uptake in non-thyroid cancer cells. METHODS We tested the effects of the MEK inhibitor RDEA119, the Akt inhibitor perifosine, and the HDAC inhibitor SAHA on NIS expression in thirteen human cancer cell lines derived from melanoma, hepatic carcinoma, gastric carcinoma, colon carcinoma, breast carcinoma, and brain cancers. We also examined radioiodine uptake and histone acetylation at the NIS promoter in selected cells. RESULTS Overall, the three inhibitors could induce NIS expression, to various extents, in melanoma and all the epithelial carcinoma-derived cells but not in brain cancer-derived cells. SAHA was most effective and its effect could be significantly enhanced by RDEA119 and perifosine. The expression of NIS, at both mRNA and protein levels, was most robust in the melanoma cell M14, hepatic carcinoma cell HepG2, and the gastric carcinoma cell MKN-7 cell. Radioiodine uptake was correspondingly induced, accompanied by robust increase in histone acetylation at the NIS promoter, in these cells when treated with the three inhibitors. CONCLUSIONS This is the first demonstration that simultaneously suppressing the MAP kinase and PI3K/Akt pathways and HDAC could induce robust NIS expression and radioiodine uptake in certain non-thyroid human cancer cells, providing novel therapeutic implications for adjunct radioiodine treatment of these cancers.
Collapse
Affiliation(s)
- Zhi Liu
- Laboratory for Cellular and Molecular Thyroid Research, Division of Endocrinology and Metabolism, School of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Mingzhao Xing
- Laboratory for Cellular and Molecular Thyroid Research, Division of Endocrinology and Metabolism, School of Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
- * E-mail:
| |
Collapse
|
20
|
Sasaki K, Ito A, Yoshida M. Development of live-cell imaging probes for monitoring histone modifications. Bioorg Med Chem 2012; 20:1887-92. [PMID: 22316554 DOI: 10.1016/j.bmc.2012.01.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 12/20/2011] [Accepted: 01/10/2012] [Indexed: 01/25/2023]
Abstract
The combination of histone posttranslational modifications occurring in nucleosomal histones determines the epigenetic code. Histone modifications such as acetylation are dynamically controlled in response to a variety of signals during the cell cycle and differentiation, but they are paradoxically maintained through cell division to impart tissue specific gene expression patterns to progeny. The dynamics of histone modifications in living cells are poorly understood, because of the lack of experimental tools to monitor them in a real-time fashion. Recently, FRET-based imaging probes for histone H4 acetylation have been developed, which enabled monitoring of changes in histone acetylation during the cell cycle and drug treatment. Further development of this type of fluorescent probes for other modifications will make it possible to visualize complicated epigenetic regulation in living cells.
Collapse
Affiliation(s)
- Kazuki Sasaki
- Japan Science and Technology Agency, PRESTO, 4-1-8 Honcho Kawaguchi, Saitama 332-0012, Japan
| | | | | |
Collapse
|
21
|
Sun Z, Feng D, Everett LJ, Bugge A, Lazar MA. Circadian epigenomic remodeling and hepatic lipogenesis: lessons from HDAC3. COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY 2011; 76:49-55. [PMID: 21900149 PMCID: PMC3755609 DOI: 10.1101/sqb.2011.76.011494] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Circadian rhythms have evolved to anticipate metabolic needs across the 24-h light/dark cycle. This is accomplished by circadian expression of metabolic genes orchestrated by transcription factors through chromatin remodeling and histone modifications. Our recent genome-wide study on histone deacetylase 3 (HDAC3) in mouse liver provides novel insights into the molecular link between circadian rhythm and hepatic de novo lipogenesis. We found that liver-specific knockout of HDAC3 in adult mouse displays severe hepatic steatosis associated with enhanced de novo lipogenesis and increased expression of lipogenic genes. Genome-wide analysis (ChIP-seq) revealed a pronounced circadian pattern of HDAC3 occupancy on genes involved in lipid metabolism, which is inversely related to histone acetylation and RNA polymerase II recruitment at these sites. The cistromes of HDAC3 and its binding partner, nuclear receptor corepressor (NCoR), significantly overlap with that of Rev-erbα, a nuclear receptor directly involved in the core circadian machinery. Knockout of Rev-erbα in mouse also leads to hepatic steatosis and enhanced de novo lipogenesis. Collectively, these data suggest that the circadian epigenomic remodeling controlled by HDAC3, and largely directed by Rev-erbα, is essential for homeostasis of the lipogenic process in liver.
Collapse
Affiliation(s)
- Z Sun
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, and The Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | | | | | | | | |
Collapse
|
22
|
Pioneer factors: directing transcriptional regulators within the chromatin environment. Trends Genet 2011; 27:465-74. [PMID: 21885149 DOI: 10.1016/j.tig.2011.07.002] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 07/09/2011] [Accepted: 07/11/2011] [Indexed: 11/20/2022]
Abstract
Chromatin is a well-known obstacle to transcription as it controls DNA accessibility, which directly impacts the recruitment of the transcriptional machinery. The recent burst of functional genomic studies provides new clues as to how transcriptional competency is regulated in this context. In this review, we discuss how these studies have shed light on a specialized subset of transcription factors, defined as pioneer factors, which direct recruitment of downstream transcription factors to establish lineage-specific transcriptional programs. In particular, we present evidence of an interplay between pioneer factors and the epigenome that could be central to this process. Finally, we discuss how pioneer factors, whose expression and function are altered in tumors, are also being considered for their prognostic value and should therefore be regarded as potential therapeutic targets. Thus, pioneer factors emerge as key players that connect the epigenome and transcription in health and disease.
Collapse
|
23
|
Rajak H, Agarawal A, Parmar P, Thakur BS, Veerasamy R, Sharma PC, Kharya MD. 2,5-Disubstituted-1,3,4-oxadiazoles/thiadiazole as surface recognition moiety: design and synthesis of novel hydroxamic acid based histone deacetylase inhibitors. Bioorg Med Chem Lett 2011; 21:5735-8. [PMID: 21875796 DOI: 10.1016/j.bmcl.2011.08.022] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 07/31/2011] [Accepted: 08/03/2011] [Indexed: 01/04/2023]
Abstract
The enzymatic inhibition of histone deacetylase activity has come out as a novel and effectual means for the treatment of cancer. Two novel series of 2-[5-(4-substitutedphenyl)-[1,3,4]-oxadiazol/thiadiazol-2-ylamino]-pyrimidine-5-carboxylic acid (tetrahydro-pyran-2-yloxy)-amides were designed and synthesized as novel hydroxamic acid based histone deacetylase inhibitors. The antiproliferative activities of the compounds were investigated in vitro using histone deacetylase inhibitory assay and MTT assay. The synthesized compounds were also tested for antitumor activity against Ehrlich ascites carcinoma cells in Swiss albino mice. The efforts were also made to establish structure-activity relationships among synthesized compounds. The results of the present studying indicates 2,5-disubstituted 1,3,4-oxadiazole/thiadiazole as promising surface recognition moiety for development of newer hydroxamic acid based histone deacetylase inhibitor.
Collapse
Affiliation(s)
- Harish Rajak
- Medicinal Chemistry Research Laboratory, SLT Institute of Pharmaceutical Sciences, Guru Ghasidas University, Bilaspur 495 009, CG, India.
| | | | | | | | | | | | | |
Collapse
|
24
|
Sun Z, Singh N, Mullican SE, Everett LJ, Li L, Yuan L, Liu X, Epstein JA, Lazar MA. Diet-induced lethality due to deletion of the Hdac3 gene in heart and skeletal muscle. J Biol Chem 2011; 286:33301-9. [PMID: 21808063 DOI: 10.1074/jbc.m111.277707] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Many human diseases result from the influence of the nutritional environment on gene expression. The environment interacts with the genome by altering the epigenome, including covalent modification of nucleosomal histones. Here, we report a novel and dramatic influence of diet on the phenotype and survival of mice in which histone deacetylase 3 (Hdac3) is deleted postnatally in heart and skeletal muscle. Although embryonic deletion of myocardial Hdac3 causes major cardiomyopathy that reduces survival, we found that excision of Hdac3 in heart and muscle later in development leads to a much milder phenotype and does not reduce survival when mice are fed normal chow. Remarkably, upon switching to a high fat diet, the mice begin to die within weeks and display signs of severe hypertrophic cardiomyopathy and heart failure. Down-regulation of myocardial mitochondrial bioenergetic genes, specifically those involved in lipid metabolism, precedes the full development of cardiomyopathy, suggesting that HDAC3 is important in maintaining proper mitochondrial function. These data suggest that loss of the epigenomic modifier HDAC3 causes dietary lethality by compromising the ability of cardiac mitochondria to respond to changes of nutritional environment. In addition, this study provides a mouse model for diet-inducible heart failure.
Collapse
Affiliation(s)
- Zheng Sun
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine and Department of Genetics, and Institute for Diabetes, Obesity, and Metabolism, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Shultz MD, Cao X, Chen CH, Cho YS, Davis NR, Eckman J, Fan J, Fekete A, Firestone B, Flynn J, Green J, Growney JD, Holmqvist M, Hsu M, Jansson D, Jiang L, Kwon P, Liu G, Lombardo F, Lu Q, Majumdar D, Meta C, Perez L, Pu M, Ramsey T, Remiszewski S, Skolnik S, Traebert M, Urban L, Uttamsingh V, Wang P, Whitebread S, Whitehead L, Yan-Neale Y, Yao YM, Zhou L, Atadja P. Optimization of the in vitro cardiac safety of hydroxamate-based histone deacetylase inhibitors. J Med Chem 2011; 54:4752-72. [PMID: 21650221 DOI: 10.1021/jm200388e] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Histone deacetylase (HDAC) inhibitors have shown promise in treating various forms of cancer. However, many HDAC inhibitors from diverse structural classes have been associated with QT prolongation in humans. Inhibition of the human ether a-go-go related gene (hERG) channel has been associated with QT prolongation and fatal arrhythmias. To determine if the observed cardiac effects of HDAC inhibitors in humans is due to hERG blockade, a highly potent HDAC inhibitor devoid of hERG activity was required. Starting with dacinostat (LAQ824), a highly potent HDAC inhibitor, we explored the SAR to determine the pharmacophores required for HDAC and hERG inhibition. We disclose here the results of these efforts where a high degree of pharmacophore homology between these two targets was discovered. This similarity prevented traditional strategies for mitigating hERG binding/modulation from being successful and novel approaches for reducing hERG inhibition were required. Using a hERG homology model, two compounds, 11r and 25i, were discovered to be highly efficacious with weak affinity for the hERG and other ion channels.
Collapse
Affiliation(s)
- Michael D Shultz
- Novartis Institutes for Biomedical Research, Inc., Cambridge, Massachusetts 02139, United States.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Photosensitization by iodinated DNA minor groove binding ligands: Evaluation of DNA double-strand break induction and repair. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2011; 103:145-52. [PMID: 21440453 DOI: 10.1016/j.jphotobiol.2011.02.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Revised: 02/17/2011] [Accepted: 02/28/2011] [Indexed: 01/09/2023]
Abstract
Iodinated DNA minor groove binding bibenzimidazoles represent a unique class of UVA photosensitizer and their extreme photopotency has been previously characterized. Earlier studies have included a comparison of three isomers, referred to as ortho-, meta- and para-iodoHoechst, which differ only in the location of the iodine substituent in the phenyl ring of the bibenzimidazole. DNA breakage and clonogenic survival studies in human erythroleukemic K562 cells have highlighted the higher photo-efficiency of the ortho-isomer (subsequently designated UV(A)Sens) compared to the meta- and para-isomers. In this study, the aim was to compare the induction and repair of DNA double-strand breaks induced by the three isomers in K562 cells. Further, we examined the effects of the prototypical broad-spectrum histone deacetylase inhibitor, Trichostatin A, on ortho-iodoHoechst/UVA-induced double-strand breaks in K562 cells. Using γH2AX as a molecular marker of the DNA lesions, our findings indicate a disparity in the induction and particularly, in the repair kinetics of double-strand breaks for the three isomers. The accumulation of γH2AX foci induced by the meta- and para-isomers returned to background levels within 24 and 48 h, respectively; the number of γH2AX foci induced by ortho-iodoHoechst remained elevated even after incubation for 96 h post-irradiation. These findings provide further evidence that the extreme photopotency of ortho-iodoHoechst is due to not only to the high quantum yield of dehalogenation, but also to the severity of the DNA lesions which are not readily repaired. Finally, our findings which indicate that Trichostatin A has a remarkable potentiating effect on ortho-iodoHoechst/UVA-induced DNA lesions are encouraging, particularly in the context of cutaneous T-cell lymphoma, for which a histone deacetylase inhibitor is already approved for therapy. This finding prompts further evaluation of the potential of combination therapies.
Collapse
|