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Schoch L, Alcover S, Padró T, Ben-Aicha S, Mendieta G, Badimon L, Vilahur G. Update of HDL in atherosclerotic cardiovascular disease. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE ARTERIOSCLEROSIS 2023; 35:297-314. [PMID: 37940388 DOI: 10.1016/j.arteri.2023.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/13/2023] [Indexed: 11/10/2023]
Abstract
Epidemiologic evidence supported an inverse association between HDL (high-density lipoprotein) cholesterol (HDL-C) levels and atherosclerotic cardiovascular disease (ASCVD), identifying HDL-C as a major cardiovascular risk factor and postulating diverse HDL vascular- and cardioprotective functions beyond their ability to drive reverse cholesterol transport. However, the failure of several clinical trials aimed at increasing HDL-C in patients with overt cardiovascular disease brought into question whether increasing the cholesterol cargo of HDL was an effective strategy to enhance their protective properties. In parallel, substantial evidence supports that HDLs are complex and heterogeneous particles whose composition is essential for maintaining their protective functions, subsequently strengthening the "HDL quality over quantity" hypothesis. The following state-of-the-art review covers the latest understanding as per the roles of HDL in ASCVD, delves into recent advances in understanding the complexity of HDL particle composition, including proteins, lipids and other HDL-transported components and discusses on the clinical outcomes after the administration of HDL-C raising drugs with particular attention to CETP (cholesteryl ester transfer protein) inhibitors.
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Affiliation(s)
- Leonie Schoch
- Cardiovascular Program, Institut de Recerca, Hospital de la Santa Creu I Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; Faculty of Medicine, University of Barcelona (UB), 08036 Barcelona, Spain
| | - Sebastián Alcover
- Cardiovascular Program, Institut de Recerca, Hospital de la Santa Creu I Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain
| | - Teresa Padró
- Cardiovascular Program, Institut de Recerca, Hospital de la Santa Creu I Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain
| | | | - Guiomar Mendieta
- Cardiology Unit, Cardiovascular Clinical Institute, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Lina Badimon
- Cardiovascular Program, Institut de Recerca, Hospital de la Santa Creu I Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; Cardiovascular Research Chair, UAB, 08025 Barcelona, Spain; CiberCV, Institute of Health Carlos III, Madrid, Spain
| | - Gemma Vilahur
- Cardiovascular Program, Institut de Recerca, Hospital de la Santa Creu I Sant Pau, IIB Sant Pau, 08025 Barcelona, Spain; CiberCV, Institute of Health Carlos III, Madrid, Spain.
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2
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Long A, Crouse A, Kesterson RA, Might M, Wallis D. Functional characterization and potential therapeutic avenues for variants in the NTRK2 gene causing developmental and epileptic encephalopathies. Am J Med Genet B Neuropsychiatr Genet 2022; 189:37-47. [PMID: 34889524 DOI: 10.1002/ajmg.b.32882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 10/29/2021] [Accepted: 11/22/2021] [Indexed: 01/11/2023]
Abstract
Variants within the Neurotrophic Tyrosine Kinase Receptor Type 2 (NTRK2) gene have been discovered to play a role in developmental and epileptic encephalopathies, a group of debilitating conditions for which little is known about cause or treatment. Here, we determine the functional consequences of two variants: p.Tyr434Cys (Y434C) (located in the transmembrane domain) and p.Thr720Ile (T720I) (located in the catalytic domain). Wild-type and variant cDNAs were constructed and transfected into HEK293 cells. In cell culture, variant Y434C exhibited ligand-independent activation of tropomyosin-related kinase B (TRKB) signaling with an associated abnormal response to brain-derived neurotrophic factor (BDNF) stimulation and increased levels of phosphorylated extracellular signal-regulated kinase (ERK) and ETS like-1 protein (ELK1) activity. Expression of variant T720I resulted in decreased TRKB signaling with reduced mTor activity as determined by decreased levels of phosphorylated S6. With the deleterious mechanisms characterized, we utilized mediKanren (a novel artificial intelligence tool) to identify therapeutics to compensate for the pathological effects. Downregulation of TRKB through inhibition with mediKanren-predicted compound 1NM-PP1 led to decreased MEK activity. Upregulation of TRKB signaling by mediKanren-predicted valproic acid led to subsequent increase of mTor activity. Overall, our results provide further characterization of the pathogenicity of these two variants in the NTRK2 gene. Indeed, Y434C is the first patient-specific NTRK2 variant with demonstrated hypermorphic activity. Furthermore, we observed that variants Y434C and T720I result in distinct functional consequences that require distinct therapeutic strategies. These data suggest the possibility that unique mutations within different regions of the NTRK2 gene results in separate clinical presentations, representing distinct genetic disorders requiring unique therapeutics.
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Affiliation(s)
- Ashlee Long
- Department of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Andrew Crouse
- Personalized Medicine Institute, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Robert A Kesterson
- Department of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Matthew Might
- Personalized Medicine Institute, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Deeann Wallis
- Department of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA
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3
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Dedoni S, Marras L, Olianas MC, Ingianni A, Onali P. The Neurotrophin Receptor TrkC as a Novel Molecular Target of the Antineuroblastoma Action of Valproic Acid. Int J Mol Sci 2021; 22:ijms22157790. [PMID: 34360553 PMCID: PMC8346142 DOI: 10.3390/ijms22157790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/14/2021] [Accepted: 07/19/2021] [Indexed: 11/16/2022] Open
Abstract
Neurotrophins and their receptors are relevant factors in controlling neuroblastoma growth and progression. The histone deacetylase (HDAC) inhibitor valproic acid (VPA) has been shown to downregulate TrkB and upregulate the p75NTR/sortilin receptor complex. In the present study, we investigated the VPA effect on the expression of the neurotrophin-3 (NT-3) receptor TrkC, a favorable prognostic marker of neuroblastoma. We found that VPA induced the expression of both full-length and truncated (TrkC-T1) isoforms of TrkC in human neuroblastoma cell lines without (SH-SY5Y) and with (Kelly, BE(2)-C and IMR 32) MYCN amplification. VPA enhanced cell surface expression of the receptor and increased Akt and ERK1/2 activation by NT-3. The HDAC inhibitors entinostat, romidepsin and vorinostat also increased TrkC in SH-SY5Y, Kelly and BE(2)-C but not IMR 32 cells. TrkC upregulation by VPA involved induction of RUNX3, stimulation of ERK1/2 and JNK, and ERK1/2-mediated Egr1 expression. In SH-SY5Y cell monolayers and spheroids the exposure to NT-3 enhanced the apoptotic cascade triggered by VPA. Gene silencing of both TrkC-T1 and p75NTR prevented the NT-3 proapoptotic effect. Moreover, NT-3 enhanced p75NTR/TrkC-T1 co-immunoprecipitation. The results indicate that VPA upregulates TrkC by activating epigenetic mechanisms and signaling pathways, and sensitizes neuroblastoma cells to NT-3-induced apoptosis.
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Affiliation(s)
- Simona Dedoni
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences, University of Cagliari, 09042 Monserrato, Italy; (S.D.); (M.C.O.)
| | - Luisa Marras
- Section of Microbiology, Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato, Italy; (L.M.); (A.I.)
| | - Maria C. Olianas
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences, University of Cagliari, 09042 Monserrato, Italy; (S.D.); (M.C.O.)
| | - Angela Ingianni
- Section of Microbiology, Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato, Italy; (L.M.); (A.I.)
| | - Pierluigi Onali
- Laboratory of Cellular and Molecular Pharmacology, Section of Neurosciences, University of Cagliari, 09042 Monserrato, Italy; (S.D.); (M.C.O.)
- Correspondence:
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Wu CH, Tsai YC, Tsai TH, Kuo KL, Su YF, Chang CH, Lin CL. Valproic Acid Reduces Vasospasm through Modulation of Akt Phosphorylation and Attenuates Neuronal Apoptosis in Subarachnoid Hemorrhage Rats. Int J Mol Sci 2021; 22:ijms22115975. [PMID: 34205883 PMCID: PMC8198375 DOI: 10.3390/ijms22115975] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/27/2021] [Accepted: 05/31/2021] [Indexed: 11/16/2022] Open
Abstract
Aneurysmal subarachnoid hemorrhage (SAH) is a devastating emergent event associated with high mortality and morbidity. Survivors usually experience functional neurological sequelae caused by vasospasm-related delayed ischemia. In this study, male Sprague-Dawley rats were randomly assigned to five groups: sham (non-SAH) group, SAH group, and three groups with SAH treated with different doses of valproic acid (VPA) (10, 20, 40 mg/kg, once-daily, for 7 days). The severity of vasospasm was determined by the ratio of cross-sectional areas to intima-media thickness of the basilar arteries (BA) on the seventh day after SAH. The BA showed decreased expression of phospho-Akt proteins. The dentate gyrus showed increased expression of cleaved caspase-3 and Bax proteins and decreased expression of Bcl-2, phospho-ERK 1/2, phospho-Akt and acetyl-histone H3 proteins. The incidence of SAH-induced vasospasm was significantly lower in the SAH group treated with VPA 40 mg/kg (p < 0.001). Moreover, all groups treated with VPA showed reversal of the above-mentioned protein expression in BA and the dentate gyrus. Treatment with VPA upregulated histone H3 acetylation and conferred anti-vasospastic and neuro-protective effects by enhancing Akt and/or ERK phosphorylation. This study demonstrated that VPA could alleviate delayed cerebral vasospasm induced neuro-apoptosis after SAH.
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Affiliation(s)
- Chieh-Hsin Wu
- Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan; (C.-H.W.); (T.-H.T.); (K.-L.K.); (Y.-F.S.); (C.-H.C.)
- Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80756, Taiwan
| | - Yi-Cheng Tsai
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80756, Taiwan;
| | - Tai-Hsin Tsai
- Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan; (C.-H.W.); (T.-H.T.); (K.-L.K.); (Y.-F.S.); (C.-H.C.)
- Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80756, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80756, Taiwan;
| | - Keng-Liang Kuo
- Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan; (C.-H.W.); (T.-H.T.); (K.-L.K.); (Y.-F.S.); (C.-H.C.)
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80756, Taiwan;
| | - Yu-Feng Su
- Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan; (C.-H.W.); (T.-H.T.); (K.-L.K.); (Y.-F.S.); (C.-H.C.)
- Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80756, Taiwan
| | - Chih-Hui Chang
- Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan; (C.-H.W.); (T.-H.T.); (K.-L.K.); (Y.-F.S.); (C.-H.C.)
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80756, Taiwan;
| | - Chih-Lung Lin
- Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 80756, Taiwan; (C.-H.W.); (T.-H.T.); (K.-L.K.); (Y.-F.S.); (C.-H.C.)
- Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80756, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80756, Taiwan;
- Correspondence: ; Tel.: +886-7-3121101
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Fang Z, Wang X, Sun X, Hu W, Miao QR. The Role of Histone Protein Acetylation in Regulating Endothelial Function. Front Cell Dev Biol 2021; 9:672447. [PMID: 33996829 PMCID: PMC8113824 DOI: 10.3389/fcell.2021.672447] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 04/06/2021] [Indexed: 12/16/2022] Open
Abstract
Endothelial cell (EC), consisting of the innermost cellular layer of all types of vessels, is not only a barrier composer but also performing multiple functions in physiological processes. It actively controls the vascular tone and the extravasation of water, solutes, and macromolecules; modulates circulating immune cells as well as platelet and leukocyte recruitment/adhesion and activation. In addition, EC also tightly keeps coagulation/fibrinolysis balance and plays a major role in angiogenesis. Therefore, endothelial dysfunction contributes to the pathogenesis of many diseases. Growing pieces of evidence suggest that histone protein acetylation, an epigenetic mark, is altered in ECs under different conditions, and the acetylation status change at different lysine sites on histone protein plays a key role in endothelial dysfunction and involved in hyperglycemia, hypertension, inflammatory disease, cancer and so on. In this review, we highlight the importance of histone acetylation in regulating endothelial functions and discuss the roles of histone acetylation across the transcriptional unit of protein-coding genes in ECs under different disease-related pathophysiological processes. Since histone acetylation changes are conserved and reversible, the knowledge of histone acetylation in endothelial function regulation could provide insights to develop epigenetic interventions in preventing or treating endothelial dysfunction-related diseases.
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Affiliation(s)
- Zhi Fang
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
- Department of Neurology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Wang
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
| | - Xiaoran Sun
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
| | - Wenquan Hu
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
| | - Qing R. Miao
- Department of Foundations of Medicine, New York University Long Island School of Medicine, Mineola, NY, United States
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6
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Alterations in Tau Protein Level and Phosphorylation State in the Brain of the Autistic-Like Rats Induced by Prenatal Exposure to Valproic Acid. Int J Mol Sci 2021; 22:ijms22063209. [PMID: 33809910 PMCID: PMC8004207 DOI: 10.3390/ijms22063209] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/17/2021] [Accepted: 03/18/2021] [Indexed: 12/23/2022] Open
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental condition characterized by deficient social interaction and communication besides repetitive, stereotyped behaviours. A characteristic feature of ASD is altered dendritic spine density and morphology associated with synaptic plasticity disturbances. Since microtubules (MTs) regulate dendritic spine morphology and play an important role in spine development and plasticity the aim of the present study was to investigate the alterations in the content of neuronal α/β-tubulin and Tau protein level as well as phosphorylation state in the valproic acid (VPA)-induced rat model of autism. Our results indicated that maternal exposure to VPA induces: (1) decrease the level of α/β-tubulin along with Tau accumulation in the hippocampus and cerebral cortex; (2) excessive Tau phosphorylation and activation of Tau-kinases: CDK5, ERK1/2, and p70S6K in the cerebral cortex; (3) up-regulation of mTOR kinase-dependent signalling in the hippocampus and cerebral cortex of adolescent rat offspring. Moreover, immunohistochemical staining showed histopathological changes in neurons (chromatolysis) in both analysed brain structures of rats prenatally exposed to VPA. The observed changes in Tau protein together with an excessive decrease in α/β-tubulin level may suggest destabilization and thus dysfunction of the MT cytoskeleton network, which in consequence may lead to the disturbance in synaptic plasticity and the development of autistic-like behaviours.
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7
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Giménez-Palomo A, Dodd S, Anmella G, Carvalho AF, Scaini G, Quevedo J, Pacchiarotti I, Vieta E, Berk M. The Role of Mitochondria in Mood Disorders: From Physiology to Pathophysiology and to Treatment. Front Psychiatry 2021; 12:546801. [PMID: 34295268 PMCID: PMC8291901 DOI: 10.3389/fpsyt.2021.546801] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 05/24/2021] [Indexed: 12/30/2022] Open
Abstract
Mitochondria are cellular organelles involved in several biological processes, especially in energy production. Several studies have found a relationship between mitochondrial dysfunction and mood disorders, such as major depressive disorder and bipolar disorder. Impairments in energy production are found in these disorders together with higher levels of oxidative stress. Recently, many agents capable of enhancing antioxidant defenses or mitochondrial functioning have been studied for the treatment of mood disorders as adjuvant therapy to current pharmacological treatments. A better knowledge of mitochondrial physiology and pathophysiology might allow the identification of new therapeutic targets and the development and study of novel effective therapies to treat these specific mitochondrial impairments. This could be especially beneficial for treatment-resistant patients. In this article, we provide a focused narrative review of the currently available evidence supporting the involvement of mitochondrial dysfunction in mood disorders, the effects of current therapies on mitochondrial functions, and novel targeted therapies acting on mitochondrial pathways that might be useful for the treatment of mood disorders.
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Affiliation(s)
- Anna Giménez-Palomo
- Bipolar and Depressives Disorders Unit, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Mental Health Research Networking Center (CIBERSAM), Madrid, Spain
| | - Seetal Dodd
- Deakin University, The Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Barwon Health, Geelong, VIC, Australia.,Department of Psychiatry, Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - Gerard Anmella
- Bipolar and Depressives Disorders Unit, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Mental Health Research Networking Center (CIBERSAM), Madrid, Spain
| | - Andre F Carvalho
- Centre for Addiction and Mental Health, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Giselli Scaini
- Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Joao Quevedo
- Translational Psychiatry Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, United States.,Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina, Criciúma, Brazil.,Center of Excellence in Mood Disorders, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Isabella Pacchiarotti
- Bipolar and Depressives Disorders Unit, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Mental Health Research Networking Center (CIBERSAM), Madrid, Spain
| | - Eduard Vieta
- Bipolar and Depressives Disorders Unit, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Mental Health Research Networking Center (CIBERSAM), Madrid, Spain
| | - Michael Berk
- School of Medicine, The Institute for Mental and Physical Health and Clinical Translation, Deakin University, Barwon Health, Geelong, VIC, Australia.,Orygen, The National Centre of Excellence in Youth Mental Health, Parkville, VIC, Australia.,Centre for Youth Mental Health, Florey Institute for Neuroscience and Mental Health and the Department of Psychiatry, The University of Melbourne, Melbourne, VIC, Australia
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8
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Chen X, He Y, Fu W, Sahebkar A, Tan Y, Xu S, Li H. Histone Deacetylases (HDACs) and Atherosclerosis: A Mechanistic and Pharmacological Review. Front Cell Dev Biol 2020; 8:581015. [PMID: 33282862 PMCID: PMC7688915 DOI: 10.3389/fcell.2020.581015] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 10/14/2020] [Indexed: 12/12/2022] Open
Abstract
Atherosclerosis (AS), the most common underlying pathology for coronary artery disease, is a chronic inflammatory, proliferative disease in large- and medium-sized arteries. The vascular endothelium is important for maintaining vascular health. Endothelial dysfunction is a critical early event leading to AS, which is a major risk factor for stroke and myocardial infarction. Accumulating evidence has suggested the critical roles of histone deacetylases (HDACs) in regulating vascular cell homeostasis and AS. The purpose of this review is to present an updated view on the roles of HDACs (Class I, Class II, Class IV) and HDAC inhibitors in vascular dysfunction and AS. We also elaborate on the novel therapeutic targets and agents in atherosclerotic cardiovascular diseases.
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Affiliation(s)
- Xiaona Chen
- Department of Medical Biotechnology, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.,The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yanhong He
- The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenjun Fu
- The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Polish Mother's Memorial Hospital Research Institute, Łódź, Poland
| | - Yuhui Tan
- Department of Medical Biotechnology, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.,The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Suowen Xu
- Department of Endocrinology, First Affiliated Hospital, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Hong Li
- Department of Medical Biotechnology, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.,The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
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9
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Avallone A, Piccirillo MC, Di Gennaro E, Romano C, Calabrese F, Roca MS, Tatangelo F, Granata V, Cassata A, Cavalcanti E, Maurea N, Maiolino P, Silvestro L, De Stefano A, Giuliani F, Rosati G, Tamburini E, Aprea P, Vicario V, Nappi A, Vitagliano C, Casaretti R, Leone A, Petrillo A, Botti G, Delrio P, Izzo F, Perrone F, Budillon A. Randomized phase II study of valproic acid in combination with bevacizumab and oxaliplatin/fluoropyrimidine regimens in patients with RAS-mutated metastatic colorectal cancer: the REVOLUTION study protocol. Ther Adv Med Oncol 2020; 12:1758835920929589. [PMID: 32849914 PMCID: PMC7425244 DOI: 10.1177/1758835920929589] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/04/2020] [Indexed: 01/30/2023] Open
Abstract
Background Despite effective treatments, metastatic colorectal cancer (mCRC) prognosis is still poor, mostly in RAS-mutated tumors, thus suggesting the need for novel combinatorial therapies. Epigenetic alterations play an important role in initiation and progression of cancers, including CRC. Histone-deacetylase inhibitors (HDACi) have shown activity in combination with chemotherapy in the treatment of solid tumors. Owing to its HDACi activity and its safe use for epileptic disorders, valproic acid (VPA) is a good candidate for anticancer therapy that we have largely explored preclinically translating our findings in currently ongoing clinical studies. We have shown in CRC models that HDACi, including VPA, induces synergistic antitumor effects in combination with fluoropyrimidines. Furthermore, unpublished results from our group demonstrated that VPA induces differentiation and sensitization of CRC stem cells to oxaliplatin. Moreover, preclinical and clinical data suggest that HDACi may prevent/reverse anti-angiogenic resistance. Methods/Design A randomized, open-label, two-arm, multicenter phase-II study will be performed to explore whether the addition of VPA to first line bevacizumab/oxaliplatin/fluoropyrimidine regimens (mFOLFOX-6/mOXXEL) might improve progression-free survival (PFS) in RAS-mutated mCRC patients. A sample size of 200 patients was calculated under the hypothesis that the addition of VPA to chemotherapy/bevacizumab can improve PFS from 9 to 12 months, with one-sided alpha of 0.20 and a power of 0.80. Secondary endpoints are overall survival, objective response rate, metastases resection rate, toxicity, and quality of life. Moreover, the study will explore several prognostic and predictive biomarkers on blood samples, primary tumors, and on resected metastases. Discussion The "Revolution" study aims to improve the treatment efficacy of RAS-mutated mCRC through an attractive strategy evaluating the combination of VPA with standard cancer treatment. Correlative studies could identify novel biomarkers and could add new insight in the mechanism of interaction between VPA, fluoropyrimidine, oxaliplatin, and bevacizumab. Trial Registration EudraCT: 2018-001414-15; ClinicalTrials.gov identifier: NCT04310176.
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Affiliation(s)
- Antonio Avallone
- Experimental Clinical Abdominal Oncology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Via M. Semmola, Napoli, 80131, Italy
| | | | - Elena Di Gennaro
- Experimental Pharmacology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Carmela Romano
- Experimental Clinical Abdominal Oncology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Filomena Calabrese
- Experimental Clinical Abdominal Oncology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Maria Serena Roca
- Experimental Pharmacology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Fabiana Tatangelo
- Pathology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Vincenza Granata
- Radiology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Antonio Cassata
- Experimental Clinical Abdominal Oncology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Ernesta Cavalcanti
- Laboratory Medicine Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Nicola Maurea
- Cardiology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Piera Maiolino
- Pharmacy Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Lucrezia Silvestro
- Experimental Clinical Abdominal Oncology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Alfonso De Stefano
- Experimental Clinical Abdominal Oncology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | | | - Gerardo Rosati
- Medical Oncology Unit, S. Carlo Hospital, Potenza, Italy
| | - Emiliano Tamburini
- Dipartimento di Oncologia e Cure Palliative, Azienda Ospedaliera Cardinale G. Panico, Tricase-Lecce, Italy
| | - Pasquale Aprea
- Vascular Access Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Valeria Vicario
- Experimental Clinical Abdominal Oncology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Anna Nappi
- Experimental Clinical Abdominal Oncology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Carlo Vitagliano
- Experimental Pharmacology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Rossana Casaretti
- Experimental Clinical Abdominal Oncology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Alessandra Leone
- Experimental Pharmacology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Antonella Petrillo
- Radiology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Gerardo Botti
- Pathology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Paolo Delrio
- Colorectal Oncological Surgery, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Francesco Izzo
- Hepatobiliary Surgery Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Francesco Perrone
- Clinical Trials Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Napoli, Italy
| | - Alfredo Budillon
- Experimental Pharmacology Unit, Istituto Nazionale Tumori- IRCCS-Fondazione G. Pascale, Via M. Semmola, Napoli, 80131, Italy
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10
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Sultana F, Manasa KL, Shaik SP, Bonam SR, Kamal A. Zinc Dependent Histone Deacetylase Inhibitors in Cancer Therapeutics: Recent Update. Curr Med Chem 2020; 26:7212-7280. [PMID: 29852860 DOI: 10.2174/0929867325666180530094120] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 02/12/2018] [Accepted: 05/22/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Histone deacetylases (HDAC) are an important class of enzymes that play a pivotal role in epigenetic regulation of gene expression that modifies the terminal of core histones leading to remodelling of chromatin topology and thereby controlling gene expression. HDAC inhibitors (HDACi) counter this action and can result in hyperacetylation of histones, thereby inducing an array of cellular consequences such as activation of apoptotic pathways, generation of reactive oxygen species (ROS), cell cycle arrest and autophagy. Hence, there is a growing interest in the potential clinical use of HDAC inhibitors as a new class of targeted cancer therapeutics. Methodology and Result: Several research articles spanning between 2016 and 2017 were reviewed in this article and presently offer critical insights into the important strategies such as structure-based rational drug design, multi-parameter lead optimization methodologies, relevant SAR studies and biology of various class of HDAC inhibitors, such as hydroxamic acids, benzamides, cyclic peptides, aliphatic acids, summarising the clinical trials and results of various combination drug therapy till date. CONCLUSION This review will provide a platform to the synthetic chemists and biologists to cater the needs of both molecular targeted therapy and combination drug therapy to design and synthesize safe and selective HDAC inhibitors in cancer therapeutics.
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Affiliation(s)
- Faria Sultana
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad-500007, India
| | - Kesari Lakshmi Manasa
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad-500007, India.,Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500037, India
| | - Siddiq Pasha Shaik
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad-500007, India.,Academy of Scientific and Innovative Research, New Delhi, 110 025, India
| | - Srinivasa Reddy Bonam
- Vaccine Immunology Laboratory, Natural Product Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Ahmed Kamal
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad-500007, India.,Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500037, India.,Academy of Scientific and Innovative Research, New Delhi, 110 025, India.,School of Pharmaceutical Education and Research (SPER), Jamia Hamdard University, New Delhi, 110062, India
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11
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Wu H, Ding J, Wang L, Lin J, Li S, Xiang G, Jiang L, Xu H, Gao W, Zhou K. Valproic acid enhances the viability of random pattern skin flaps: involvement of enhancing angiogenesis and inhibiting oxidative stress and apoptosis. DRUG DESIGN DEVELOPMENT AND THERAPY 2018; 12:3951-3960. [PMID: 30510403 PMCID: PMC6248271 DOI: 10.2147/dddt.s186222] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background Random skin flaps are commonly applied during plastic surgery, but distal flap necrosis limits their clinical applications. Valproic acid (VPA), a histone deacetylase inhibitor and a traditional antiepileptic agent, may promote flap survival. Materials and methods Sprague–Dawley rats were randomly divided into VPA-treated and control groups. All rats received VPA or saline by intraperitoneal injections once daily for 7 days after the modified McFarlane flap model was established. On postoperative day 7, flap survival, laser Doppler blood flow, and water content were examined for flap viability, hematoxylin and eosin staining (H&E), immunohistochemistry (IHC), and Western blot analysis, and the status of angiogenesis, apoptosis, and oxidative stress were detected in the ischemic flaps. Results VPA increased the survival area, blood flow, and number of microvessels in skin flaps on postoperative day 7 and reduced edema. VPA promoted angiogenesis by enhancing vascular endothelial growth factor (VEGF) mRNA transcription and upregulating VEGF and cadherin 5 expression, inhibited apoptosis via reduction of caspase 3 cleavage, and relieved oxidative stress by increasing superoxide dismutase (SOD) and glutathione (GSH) levels and reducing the malondialdehyde (MDA) level. Conclusion VPA promoted random skin flap survival by enhancing angiogenesis and inhibiting oxidative stress and apoptosis.
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Affiliation(s)
- Hongqiang Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China, ; .,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China, ; .,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China, ;
| | - Jian Ding
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China, ; .,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China, ; .,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China, ;
| | - Lei Wang
- The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China, ;
| | - Jinti Lin
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China, ; .,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China, ; .,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China, ;
| | - Shihen Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China, ; .,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China, ; .,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China, ;
| | - Guangheng Xiang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China, ; .,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China, ; .,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China, ;
| | - Liangfu Jiang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China, ; .,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China, ; .,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China, ;
| | - Huazi Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China, ; .,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China, ; .,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China, ;
| | - Weiyang Gao
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China, ; .,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China, ; .,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China, ;
| | - Kailiang Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China, ; .,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou 325027, China, ; .,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou 325027, China, ;
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12
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Murugavel S, Bugyei-Twum A, Matkar PN, Al-Mubarak H, Chen HH, Adam M, Jain S, Narang T, Abdin RM, Qadura M, Connelly KA, Leong-Poi H, Singh KK. Valproic Acid Induces Endothelial-to-Mesenchymal Transition-Like Phenotypic Switching. Front Pharmacol 2018; 9:737. [PMID: 30050438 PMCID: PMC6050396 DOI: 10.3389/fphar.2018.00737] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 06/18/2018] [Indexed: 12/14/2022] Open
Abstract
Valproic acid (VPA), a histone deacetylase (HDAC) inhibitor, is a widely used anticonvulsant drug that is currently undergoing clinical evaluation for anticancer therapy due to its anti-angiogenic potential. Endothelial cells (ECs) can transition into mesenchymal cells and this form of EC plasticity is called endothelial-to-mesenchymal transition (EndMT), which is widely implicated in several pathologies including cancer and organ fibrosis. However, the effect of VPA on EC plasticity and EndMT remains completely unknown. We report herein that VPA-treatment significantly inhibits tube formation, migration, nitric oxide production, proliferation and migration in ECs. A microscopic evaluation revealed, and qPCR, immunofluorescence and immunoblotting data confirmed EndMT-like phenotypic switching as well as an increased expression of pro-fibrotic genes in VPA-treated ECs. Furthermore, our data confirmed important and regulatory role played by TGFβ-signaling in VPA-induced EndMT. Our qPCR array data performed for 84 endothelial genes further supported our findings and demonstrated 28 significantly and differentially regulated genes mainly implicated in angiogenesis, endothelial function, EndMT and fibrosis. We, for the first time report that VPA-treatment associated EndMT contributes to the VPA-associated loss of endothelial function. Our data also suggest that VPA based therapeutics may exacerbate endothelial dysfunction and EndMT-related phenotype in patients undergoing anticonvulsant or anticancer therapy, warranting further investigation.
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Affiliation(s)
| | - Antoinette Bugyei-Twum
- Division of Cardiology, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Pratiek N Matkar
- Division of Cardiology, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Husain Al-Mubarak
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Hao H Chen
- Division of Cardiology, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Mohamed Adam
- Division of Cardiology, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Shubha Jain
- Vascular Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada
| | - Tanya Narang
- Faculty of Science, York University, Toronto, ON, Canada
| | - Rawand M Abdin
- Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Mohammad Qadura
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada.,Vascular Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada
| | - Kim A Connelly
- Division of Cardiology, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Howard Leong-Poi
- Division of Cardiology, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.,Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Krishna K Singh
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada.,Vascular Surgery, Keenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.,Department of Surgery, University of Toronto, Toronto, ON, Canada.,Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, ON, Canada
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13
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Leong IL, Tsai TY, Wong KL, Shiao LR, Cheng KS, Chan P, Leung YM. Valproic acid inhibits ATP-triggered Ca 2+ release via a p38-dependent mechanism in bEND.3 endothelial cells. Fundam Clin Pharmacol 2018; 32:499-506. [PMID: 29752814 DOI: 10.1111/fcp.12381] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 04/22/2018] [Accepted: 05/04/2018] [Indexed: 01/06/2023]
Abstract
Valproic acid (VA) is currently used to treat epilepsy and bipolar disorder. It has also been demonstrated to promote neuroprotection and neurogenesis. Although beneficial actions of VA on brain blood vessels have also been demonstrated, the effects of VA on brain endothelial cell (EC) Ca2+ signaling are hitherto unreported. In this report, we examined the effects of VA on agonist-triggered Ca2+ signaling in mouse cortical bEND.3 EC. While VA (100 μm) did not cause an acute inhibition of ATP-triggered Ca2+ signaling, a 30-min VA treatment strongly suppressed ATP-triggered intracellular Ca2+ release; however, such treatment did not affect Ca2+ release triggered by cyclopiazonic acid, an inhibitor of SERCA Ca2+ pump, suggesting there was no reduction in Ca2+ store size. VA-activated p38 signaling, and VA-induced inhibition of ATP-triggered Ca2+ release was prevented by SB203580, a p38 inhibitor, suggesting VA caused the inhibition by activating p38. Remarkably, VA treatment did not affect acetylcholine-triggered Ca2+ release, suggesting VA may not inhibit inositol 1,4,5-trisphosphate-induced Ca2+ release per se, and may not act directly on Gq or phospholipase C. Taken together, our results suggest VA treatment, via a p38-dependent mechanism, led to an inhibition of purinergic receptor-effector coupling.
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Affiliation(s)
- Iat-Lon Leong
- Division of Cardiology, Department of Internal Medicine, Kiang Wu Hospital, 33 Estrada do Repouso, Macau, China
| | - Tien-Yao Tsai
- School of Medicine, College of Medicine, Fu Jen Catholic University, 510 Zhongzheng Road, New Taipei City, Taiwan.,Cardiovascular Division, Fu Jen Catholic University Hospital, 69 Guizi Road, New Taipei City, Taiwan
| | - Kar-Lok Wong
- Department of Anesthesiology, China Medical University Hospital, 2 Yude Road, Taichung, Taiwan
| | - Lian-Ru Shiao
- Department of Physiology, China Medical University, 91 Hsuehshi Road, Taichung, Taiwan
| | - Ka-Shun Cheng
- Department of Anesthesiology, China Medical University Hospital, 2 Yude Road, Taichung, Taiwan.,Department of Anesthesiology, The Qingdao University Yuhuangding Hospital, 20 Yuhuangding East Road, Yantai, Shandong, China
| | - Paul Chan
- Division of Cardiology, Department of Medicine, Taipei Medical University Wan Fang Hospital, 111 Xinglong Road, Taipei, Taiwan
| | - Yuk-Man Leung
- Department of Physiology, China Medical University, 91 Hsuehshi Road, Taichung, Taiwan
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14
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Gao L, Sun X, Zhang Q, Chen X, Zhao T, Lu L, Zhang J, Hong Y. Histone deacetylase inhibitor trichostatin A and autophagy inhibitor chloroquine synergistically exert anti-tumor activity in H-ras transformed breast epithelial cells. Mol Med Rep 2018; 17:4345-4350. [PMID: 29344672 PMCID: PMC5802205 DOI: 10.3892/mmr.2018.8446] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 01/12/2018] [Indexed: 01/15/2023] Open
Abstract
Histone deacetylase inhibitors (HDACIs) cause oncogene‑transformed mammalian cell death. Our previous study indicated that HDACIs activate forkhead box O1 (FOXO1) and induce autophagy in liver and colon cancer cells. However, whether FOXO1 is involved in HDACI‑mediated oncogene‑transformed mammalian cell death remains unclear. In the present study, H‑ras transformed MCF10A cells were used to investigate the role of FOXO1 in this pathway. Results showed that trichostatin A (TSA), a HDACI, activated apoptosis in MCF10A‑ras cells, but not in MCF10A cells. Furthermore, TSA activated FOXO1 via P21 upregulation, whereas the knockdown of FOXO1 reduced TSA‑induced cell death. In addition, TSA induced autophagy in MCF10A and MCF10A‑ras cells by blocking the mammailian target of rapamycin signaling pathway. Furthermore, autophagy inhibition lead to higher MCF10A‑ras cell death by TSA, thus indicating that autophagy is essential in cell survival. Taken together, the present study demonstrated that TSA causes oncogene‑transformed cell apoptosis via activation of FOXO1 and HDACI‑mediated autophagy induction, which served as important cell survival mechanisms. Notably, the present findings imply that a combination of HDACIs and autophagy inhibitors produce a synergistic anticancer effect.
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Affiliation(s)
- Liang Gao
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Xin Sun
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Qi Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310002, P.R. China
| | - Xiaochen Chen
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Tongwei Zhao
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Liqing Lu
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Jianbin Zhang
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
| | - Yupeng Hong
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, P.R. China
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15
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Arlier S, Murk W, Guzeloglu-Kayisli O, Semerci N, Larsen K, Tabak MS, Arici A, Schatz F, Lockwood CJ, Kayisli UA. The extracellular signal-regulated kinase 1/2 triggers angiogenesis in human ectopic endometrial implants by inducing angioblast differentiation and proliferation. Am J Reprod Immunol 2017; 78. [DOI: 10.1111/aji.12760] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 08/21/2017] [Indexed: 12/11/2022] Open
Affiliation(s)
- Sefa Arlier
- Department of Obstetrics & Gynecology; Morsani College of Medicine; University of South Florida; Tampa FL USA
| | - William Murk
- Department of Obstetrics, Gynecology & Reproductive Sciences; School of Medicine; Yale University; New Haven CT USA
| | - Ozlem Guzeloglu-Kayisli
- Department of Obstetrics & Gynecology; Morsani College of Medicine; University of South Florida; Tampa FL USA
| | - Nihan Semerci
- Department of Obstetrics & Gynecology; Morsani College of Medicine; University of South Florida; Tampa FL USA
| | - Kellie Larsen
- Department of Obstetrics & Gynecology; Morsani College of Medicine; University of South Florida; Tampa FL USA
| | - Mehmet S. Tabak
- Department of Obstetrics, Gynecology & Reproductive Sciences; School of Medicine; Yale University; New Haven CT USA
| | - Aydin Arici
- Department of Obstetrics, Gynecology & Reproductive Sciences; School of Medicine; Yale University; New Haven CT USA
| | - Frederick Schatz
- Department of Obstetrics & Gynecology; Morsani College of Medicine; University of South Florida; Tampa FL USA
| | - Charles J. Lockwood
- Department of Obstetrics & Gynecology; Morsani College of Medicine; University of South Florida; Tampa FL USA
| | - Umit A. Kayisli
- Department of Obstetrics & Gynecology; Morsani College of Medicine; University of South Florida; Tampa FL USA
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16
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Histone Deacetylase Inhibitors as Anticancer Drugs. Int J Mol Sci 2017; 18:ijms18071414. [PMID: 28671573 PMCID: PMC5535906 DOI: 10.3390/ijms18071414] [Citation(s) in RCA: 797] [Impact Index Per Article: 113.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 06/11/2017] [Accepted: 06/27/2017] [Indexed: 12/11/2022] Open
Abstract
Carcinogenesis cannot be explained only by genetic alterations, but also involves epigenetic processes. Modification of histones by acetylation plays a key role in epigenetic regulation of gene expression and is controlled by the balance between histone deacetylases (HDAC) and histone acetyltransferases (HAT). HDAC inhibitors induce cancer cell cycle arrest, differentiation and cell death, reduce angiogenesis and modulate immune response. Mechanisms of anticancer effects of HDAC inhibitors are not uniform; they may be different and depend on the cancer type, HDAC inhibitors, doses, etc. HDAC inhibitors seem to be promising anti-cancer drugs particularly in the combination with other anti-cancer drugs and/or radiotherapy. HDAC inhibitors vorinostat, romidepsin and belinostat have been approved for some T-cell lymphoma and panobinostat for multiple myeloma. Other HDAC inhibitors are in clinical trials for the treatment of hematological and solid malignancies. The results of such studies are promising but further larger studies are needed. Because of the reversibility of epigenetic changes during cancer development, the potency of epigenetic therapies seems to be of great importance. Here, we summarize the data on different classes of HDAC inhibitors, mechanisms of their actions and discuss novel results of preclinical and clinical studies, including the combination with other therapeutic modalities.
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17
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HDAC10 promotes angiogenesis in endothelial cells through the PTPN22/ERK axis. Oncotarget 2017; 8:61338-61349. [PMID: 28977867 PMCID: PMC5617427 DOI: 10.18632/oncotarget.18130] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 04/12/2017] [Indexed: 01/08/2023] Open
Abstract
Angiogenesis is crucially involved in many physiological and pathological processes including tumor growth, but the molecular mechanisms regulating angiogenesis are incompletely understood. In this study, we investigated the functions and mechanism of histone deacetylase 10 (HDAC10), a member of the HDAC II family, in regulation of angiogenesis. HDAC10 overexpression in human umbilical vein endothelial cells (HUVECs) promoted tube formation, whereas depletion of HDAC10 from HUVECs inhibited tube formation in vitro and in vivo. Mechanistically, HDAC10 overexpression increased extracellular-regulated kinase 1/2 (ERK1/2) activation, whereas depletion of HDAC10 inhibited ERK1/2 activation. Finally, HDAC10 promoted ERK1/2 phosphorylation by deacetylating the promoter of protein tyrosine phosphatase, non-receptor type 22 (PTPN22) and inhibiting the expression of PTPN22, which is a negative regulator of ERK phosphorylation. Collectively, our results identify HDAC10 as a key regulator of angiogenesis and reveal that HDAC10 functions in this process by binding and deacetylating the PTPN22 promoter and subsequently inhibiting PTPN22 expression, which in turn increases ERK1/2 phosphorylation. Our studies suggest that HDAC10 is a potential target for therapeutic intervention to inhibit angiogenesis and tumor growth.
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18
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Yu W, Greenberg ML. Inositol depletion, GSK3 inhibition and bipolar disorder. FUTURE NEUROLOGY 2016; 11:135-148. [PMID: 29339929 DOI: 10.2217/fnl-2016-0003] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 03/04/2016] [Indexed: 12/31/2022]
Abstract
Valproic acid and lithium are widely used to treat bipolar disorder, a severe illness characterized by cycles of mania and depression. However, their efficacy is limited, and treatment is often accompanied by serious side effects. The therapeutic mechanisms of these drugs are not understood, hampering the development of more effective treatments. Among the plethora of biochemical effects of the drugs, those that are common to both may be more related to therapeutic efficacy. Two common outcomes include inositol depletion and GSK3 inhibition, which have been proposed to explain the efficacy of both valproic acid and lithium. Here, we discuss the inositol depletion and GSK3 inhibition hypotheses, and introduce a unified model suggesting that inositol depletion and GSK3 inhibition are inter-related.
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Affiliation(s)
- Wenxi Yu
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, USA
| | - Miriam L Greenberg
- Department of Biological Sciences, Wayne State University, Detroit, MI 48202, USA
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19
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Zhang J, Ng S, Wang J, Zhou J, Tan SH, Yang N, Lin Q, Xia D, Shen HM. Histone deacetylase inhibitors induce autophagy through FOXO1-dependent pathways. Autophagy 2016; 11:629-42. [PMID: 25919885 DOI: 10.1080/15548627.2015.1023981] [Citation(s) in RCA: 139] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Autophagy is a catabolic process in response to starvation or other stress conditions to sustain cellular homeostasis. At present, histone deacetylase inhibitors (HDACIs) are known to induce autophagy in cells through inhibition of mechanistic target of rapamycin (MTOR) pathway. FOXO1, an important transcription factor regulated by AKT, is also known to play a role in autophagy induction. At present, the role of FOXO1 in the HDACIs-induced autophagy has not been reported. In this study, we first observed that HDACIs increased the expression of FOXO1 at the mRNA and protein level. Second, we found that FOXO1 transcriptional activity was enhanced by HDACIs, as evidenced by increased FOXO1 nuclear accumulation and transcriptional activity. Third, suppression of FOXO1 function by siRNA knockdown or by a chemical inhibitor markedly blocked HDACIs-induced autophagy. Moreover, we found that FOXO1-mediated autophagy is achieved via its transcriptional activation, leading to a dual effect on autophagy induction: (i) enhanced expression of autophagy-related (ATG) genes, and (ii) suppression of MTOR via transcription of the SESN3 (sestrin 3) gene. Finally, we found that inhibition of autophagy markedly enhanced HDACIs-mediated cell death, indicating that autophagy serves as an important cell survival mechanism. Taken together, our studies reveal a novel function of FOXO1 in HDACIs-mediated autophagy in human cancer cells and thus support the development of a novel therapeutic strategy by combining HDACIs and autophagy inhibitors in cancer therapy.
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Key Words
- ATG, autophagy-related
- BAF, bafilomycin A1
- CQ, chloroquine
- FOXO, forkhead box O
- FOXO1
- GFP, green fluorescent protein
- MAP1LC3/LC3, microtubule-associated protein 1 light chain 3
- MEF, mouse embryonic fibroblast
- MTOR
- MTOR, mechanistic target of rapamycin
- PI3K, phosphoinositide 3-kinase
- SAHA, suberoylanilide hydroxamic acid
- TSA, trichostatin A
- TSC, tuberous sclerosis
- autophagy
- cancer
- cell death
- histone deacetylase inhibitors
- siRNA, short interfering RNA
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Affiliation(s)
- Jianbin Zhang
- a Department of Physiology ; Yong Loo Lin School of Medicine; National University of Singapore ; Singapore
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20
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Chang CY, Li JR, Wu CC, Ou YC, Chen WY, Kuan YH, Wang WY, Chen CJ. Valproic acid sensitizes human glioma cells to gefitinib-induced autophagy. IUBMB Life 2015; 67:869-79. [PMID: 26488897 DOI: 10.1002/iub.1445] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 10/04/2015] [Indexed: 12/29/2022]
Abstract
Autophagy and apoptosis represent important cellular processes involved in cancer cell killing mechanisms. Epidermal growth factor receptor inhibitor gefitinib and valproic acid have been implicated in the treatment of malignancies including glioma involving autophagic and apoptotic mechanisms. Therefore, it is interesting to investigate whether a combination of gefitinib and valproic acid shows better cancer cell killing effect on human glioma cells. We found that a nontoxic concentration of valproic acid sensitized U87 and T98G glioma cells to gefitinib cytotoxicity by inhibiting cell growth and long-term clonogenic survival. The augmented consequences were accompanied by the formation of autophagic vacuoles, conversion of microtubule-associated protein-1 light chain 3-II (LC3-II), and degradation of p62. Autophagy inhibitor 3-methyladenosine and chloroquine and genetic silencing of LC3 but not broad-spectrum caspase inhibitor attenuated gefitinib/valproic acid-induced growth inhibition. Gefitinib/valproic acid-induced autophagy was accompanied by the activation of liver kinase-B1 (LKB1)/AMP-activated protein kinase (AMPK)/ULK1. Silencing of AMPK and ULK1 suppressed gefitinib/valproic acid-induced autophagy and growth inhibition. Mechanistic studies showed that gefitinib/valproic acid increased intracellular reactive oxygen species generation and N-acetyl cysteine attenuated gefitinib/valproic acid-caused autophagy and growth inhibition. In addition to demonstrating the autophagic mechanisms of gefitinib/valproic acid, the results of this study further suggest that intracellular oxidative stress and the LKB1/AMPK signaling might be a potential target for the development of therapeutic strategy against glioma.
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Affiliation(s)
- Cheng-Yi Chang
- Department of Surgery, Feng Yuan Hospital, Taichung, Taiwan.,Graduate Institute of Pharmaceutical Science and Technology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Jian-Ri Li
- Division of Urology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Chih-Cheng Wu
- Department of Anesthesiology, Taichung Veterans General Hospital, Taichung, Taiwan.,Department of Financial and Computational Mathematics, Providence University, Taichung, Taiwan
| | - Yen-Chuan Ou
- Division of Urology, Taichung Veterans General Hospital, Taichung, Taiwan.,Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Wen-Ying Chen
- Department of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Yu-Hsiang Kuan
- Department of Pharmacology, Chung Shan Medical University, Taichung, Taiwan.,Department of Pharmacy, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Wen-Yi Wang
- Department of Nursing, HungKuang University, Taichung, Taiwan
| | - Chun-Jung Chen
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan.,Department of Nursing, HungKuang University, Taichung, Taiwan.,Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan
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21
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Kutlu O, Karaguzel E, Gurgen SG, Okatan AE, Kutlu S, Bayraktar C, Kazaz IO, Eren H. Antifibrogenic role of valproic acid in streptozotocin induced diabetic rat penis. Andrologia 2015; 48:453-63. [DOI: 10.1111/and.12465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2015] [Indexed: 01/10/2023] Open
Affiliation(s)
- O. Kutlu
- Department of Urology; School of Medicine; Karadeniz Technical University; Trabzon Turkey
| | - E. Karaguzel
- Department of Urology; School of Medicine; Karadeniz Technical University; Trabzon Turkey
| | - S. G. Gurgen
- School of Vocational Health Service; Celal Bayar University; Manisa Turkey
| | - A. E. Okatan
- Department of Urology; School of Medicine; Karadeniz Technical University; Trabzon Turkey
| | - S. Kutlu
- Department of Urology; Aydin State Hospital; Aydin Turkey
| | - C. Bayraktar
- Department of Urology; School of Medicine; Karadeniz Technical University; Trabzon Turkey
| | - I. O. Kazaz
- Department of Urology; School of Medicine; Karadeniz Technical University; Trabzon Turkey
| | - H. Eren
- Department of Urology; School of Medicine; Karadeniz Technical University; Trabzon Turkey
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Giacomelli C, Trincavelli ML, Satriano C, Hansson Ö, La Mendola D, Rizzarelli E, Martini C. ♦Copper (II) ions modulate Angiogenin activity in human endothelial cells. Int J Biochem Cell Biol 2015; 60:185-96. [DOI: 10.1016/j.biocel.2015.01.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 11/27/2014] [Accepted: 01/07/2015] [Indexed: 12/30/2022]
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23
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Kimura A, Guo X, Noro T, Harada C, Tanaka K, Namekata K, Harada T. Valproic acid prevents retinal degeneration in a murine model of normal tension glaucoma. Neurosci Lett 2015; 588:108-13. [DOI: 10.1016/j.neulet.2014.12.054] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 12/22/2014] [Accepted: 12/25/2014] [Indexed: 12/28/2022]
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Fraineau S, Palii CG, Allan DS, Brand M. Epigenetic regulation of endothelial-cell-mediated vascular repair. FEBS J 2015; 282:1605-29. [PMID: 25546332 DOI: 10.1111/febs.13183] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 12/17/2014] [Accepted: 12/19/2014] [Indexed: 01/16/2023]
Abstract
Maintenance of vascular integrity is essential for the prevention of vascular disease and for recovery following cardiovascular, cerebrovascular and peripheral vascular events including limb ischemia, heart attack and stroke. Endothelial stem/progenitor cells have recently gained considerable interest due to their potential use in stem cell therapies to mediate revascularization after ischemic injury. Therefore, there is an urgent need to understand fundamental mechanisms regulating vascular repair in specific cell types to develop new beneficial therapeutic interventions. In this review, we highlight recent studies demonstrating that epigenetic mechanisms (including post-translational modifications of DNA and histones as well as non-coding RNA-mediated processes) play essential roles in the regulation of endothelial stem/progenitor cell functions through modifying chromatin structure. Furthermore, we discuss the potential of using small molecules that modulate the activities of epigenetic enzymes to enhance the vascular repair function of endothelial cells and offer insight on potential strategies that may accelerate clinical applications.
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Affiliation(s)
- Sylvain Fraineau
- Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Canada; Ottawa Institute of Systems Biology, Canada
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25
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Wang Y, Wu X, Zhong Y, Shen J, Wu X, Ju S, Wang X. Effects of histone deacetylase inhibition on the survival, proliferation and migration of Schwann cells, as well as on the expression of neurotrophic factors and genes associated with myelination. Int J Mol Med 2014; 34:599-605. [PMID: 24888454 DOI: 10.3892/ijmm.2014.1792] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 05/06/2014] [Indexed: 11/06/2022] Open
Abstract
Trichostatin A (TSA), a histone deacetylase (HDAC) inhibitor, has been shown to have neuroprotective, neurotrophic and anti-inflammatory properties in both animal and cellular models of neurodegenerative disorders. In a previous study of ours, we demonstrated that TSA inhibited the proliferation and increased the differentiation of neuronal precursor cells (NPCs). However, the effects of TSA on Schwann cells (SCs) have not yet been fully elucidated. Thus, in the present study, using SCs derived from adult rat sciatic nerves, we investigated the effects of TSA on the survival, proliferation, migration and myelination of SCs. We found that TSA significantly induced SC death when used at high concentrations. We also observed that TSA promoted the proliferation of SCs in a time-dependent manner. In addition, TSA inhibited the migration of SCs. Moreover, RT-PCR revealed that TSA increased the mRNA expression of several neurotrophic factors and inhibited the expression of genes associated with myelination, including myelin basic protein (MBP) and myelin protein zero (MPZ). Taken together, our results suggest that TSA plays an important role in regulating the growth and biological function of SCs. These data may contribute to our understanding of TSA-based treatment of neurodegenerative diseases.
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Affiliation(s)
- Yazhou Wang
- Laboratory Medicine Center, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Xingjun Wu
- Department of Neurology, Xuhui Central Hospital, Xuhui, Shanghai 200031, P.R. China
| | - Yueping Zhong
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Jianhong Shen
- Department of Neurosurgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Xinhua Wu
- Surgical Comprehensive Laboratory, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Shaoqing Ju
- Laboratory Medicine Center, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Xiaofei Wang
- Laboratory Medicine Center, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
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Valproic acid suppresses lipopolysaccharide-induced cyclooxygenase-2 expression via MKP-1 in murine brain microvascular endothelial cells. Biochem Pharmacol 2014; 88:372-83. [DOI: 10.1016/j.bcp.2014.02.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Revised: 02/07/2014] [Accepted: 02/07/2014] [Indexed: 02/06/2023]
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In Vitro Characterization of Valproic Acid, ATRA, and Cytarabine Used for Disease-Stabilization in Human Acute Myeloid Leukemia: Antiproliferative Effects of Drugs on Endothelial and Osteoblastic Cells and Altered Release of Angioregulatory Mediators by Endothelial Cells. LEUKEMIA RESEARCH AND TREATMENT 2014; 2014:143479. [PMID: 24527217 PMCID: PMC3910457 DOI: 10.1155/2014/143479] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Accepted: 10/28/2013] [Indexed: 02/08/2023]
Abstract
The combined use of the histone deacetylase inhibitor valproic acid (VPA), the retinoic acid receptor- α agonist all-trans retinoic acid (ATRA), and the deoxyribonucleic acid polymerase- α inhibitor cytarabine (Ara-C) is now considered for disease-stabilizing treatment of acute myeloid leukemia (AML). Leukemogenesis and leukemia cell chemoresistance seem to be supported by neighbouring stromal cells in the bone marrow, and we have therefore investigated the effects of these drugs on primary human endothelial cells and the osteoblastic Cal72 cell line. The results show that VPA and Ara-C have antiproliferative effects, and the antiproliferative/cytotoxic effect of Ara-C was seen at low concentrations corresponding to serum levels found during low-dose in vivo treatment. Furthermore, in functional assays of endothelial migration and tube formation VPA elicited an antiangiogenic effect, whereas ATRA elicited a proangiogenic effect. Finally, VPA and ATRA altered the endothelial cell release of angiogenic mediators; ATRA increased levels of CXCL8, PDGF-AA, and VEGF-D, while VPA decreased VEGF-D and PDGF-AA/BB levels and both drugs reduced MMP-2 levels. Several of these mediators can enhance AML cell proliferation and/or are involved in AML-induced bone marrow angiogenesis, and direct pharmacological effects on stromal cells may thus indirectly contribute to the overall antileukemic activity of this triple drug combination.
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28
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Zhao Y, Xing B, Dang YH, Qu CL, Zhu F, Yan CX. Microinjection of valproic acid into the ventrolateral orbital cortex enhances stress-related memory formation. PLoS One 2013; 8:e52698. [PMID: 23300985 PMCID: PMC3536774 DOI: 10.1371/journal.pone.0052698] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2012] [Accepted: 11/19/2012] [Indexed: 12/21/2022] Open
Abstract
There is collecting evidence suggesting that the process of chromatin remodeling such as changes in histone acetylation contribute to the formation of stress-related memory. Recently, the ventrolateral orbital cortex (VLO), a major subdivision of orbitofrontal cortex (OFC), was shown to be involved in antidepressant-like actions through epigenetic mechanisms. Here, we further investigated the effects of the histone deacetylase inhibitor (HDACi) valproic acid (VPA) on stress-related memory formation and the underlying molecular mechanisms by using the traditional two-day forced swimming test (FST). The results showed that VPA significantly increased the immobility time on day 2 when infused into the VLO before the initial forced swim stress on day 1. The learned immobility response to the stress was associated with increased phosphorylation of extracellular signal-regulated kinase (ERK) in VLO and hippocampus on the first day. The levels of phosphorylated ERK (phospho-ERK) in VLO and hippocampus were significantly decreased when retested 24 h later. The pretreatment with intra-VLO VPA infusion further reduced the activation of ERK on day 2 and day 7 compared with the saline controls. Moreover, the VPA infusion pretreatment also induced a significantly decreased BDNF level in the VLO on day 2, whereas no change was detected in the hippocampus. These findings suggest that VPA enhance the memories of emotionally stressful events and the ERK activity is implicated in stimulating adaptive and mnemonic processes in case the event would recur.
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Affiliation(s)
- Yan Zhao
- Department of Forensic Medicine, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, People's Republic of China
| | - Bo Xing
- Xi'an Mental Health Center, Xi'an, Shaanxi, People's Republic of China
| | - Yong-hui Dang
- Department of Forensic Medicine, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, People's Republic of China
- * E-mail: (YD); (CY)
| | - Chao-ling Qu
- Department of Physiology and Pathophysiology, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, People's Republic of China
| | - Feng Zhu
- Department of Forensic Medicine, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, People's Republic of China
| | - Chun-xia Yan
- Department of Forensic Medicine, Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, Xi'an Jiaotong University School of Medicine, Xi'an, Shaanxi, People's Republic of China
- * E-mail: (YD); (CY)
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29
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Chiu CT, Wang Z, Hunsberger JG, Chuang DM. Therapeutic potential of mood stabilizers lithium and valproic acid: beyond bipolar disorder. Pharmacol Rev 2013; 65:105-42. [PMID: 23300133 PMCID: PMC3565922 DOI: 10.1124/pr.111.005512] [Citation(s) in RCA: 282] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The mood stabilizers lithium and valproic acid (VPA) are traditionally used to treat bipolar disorder (BD), a severe mental illness arising from complex interactions between genes and environment that drive deficits in cellular plasticity and resiliency. The therapeutic potential of these drugs in other central nervous system diseases is also gaining support. This article reviews the various mechanisms of action of lithium and VPA gleaned from cellular and animal models of neurologic, neurodegenerative, and neuropsychiatric disorders. Clinical evidence is included when available to provide a comprehensive perspective of the field and to acknowledge some of the limitations of these treatments. First, the review describes how action at these drugs' primary targets--glycogen synthase kinase-3 for lithium and histone deacetylases for VPA--induces the transcription and expression of neurotrophic, angiogenic, and neuroprotective proteins. Cell survival signaling cascades, oxidative stress pathways, and protein quality control mechanisms may further underlie lithium and VPA's beneficial actions. The ability of cotreatment to augment neuroprotection and enhance stem cell homing and migration is also discussed, as are microRNAs as new therapeutic targets. Finally, preclinical findings have shown that the neuroprotective benefits of these agents facilitate anti-inflammation, angiogenesis, neurogenesis, blood-brain barrier integrity, and disease-specific neuroprotection. These mechanisms can be compared with dysregulated disease mechanisms to suggest core cellular and molecular disturbances identifiable by specific risk biomarkers. Future clinical endeavors are warranted to determine the therapeutic potential of lithium and VPA across the spectrum of central nervous system diseases, with particular emphasis on a personalized medicine approach toward treating these disorders.
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Affiliation(s)
- Chi-Tso Chiu
- Molecular Neurobiology Section, National Institute of Mental Health, National Institutes of Health, Bethesda, Maryland, USA
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30
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Ouyang DY, Xu LH, He XH, Zhang YT, Zeng LH, Cai JY, Ren S. Autophagy is differentially induced in prostate cancer LNCaP, DU145 and PC-3 cells via distinct splicing profiles of ATG5. Autophagy 2012; 9:20-32. [PMID: 23075929 PMCID: PMC3542215 DOI: 10.4161/auto.22397] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Autophagic responses to chemotherapeutic agents may vary greatly among different prostate cancer cells and have not been well characterized. In this study, we showed that valproic acid (VPA) induced conversion of LC3-I to LC3-II and formation of LC3 puncta, the typical markers of autophagy, in LNCaP and PC-3 cells. However, these markers were undetectable in DU145 cells upon autophagic stimulation, indicating a defect of autophagy in this cell line. Among several critical autophagy-related proteins, ATG5 and ATG12-ATG5 conjugates, which are essential for autophagy induction, were absent in DU145 cells. No canonical transcripts for full-length ATG5 but only two alternatively spliced ATG5 transcripts were identified in DU145 cells. These alternative transcripts lack one or two exons, leading to premature termination of ATG5 translation. Transfection of the wild-type ATG5 gene into DU145 cells rescued the production of ATG5 and ATG12-ATG5 conjugates, resulting in formation of LC3-II conjugates and LC3 puncta. Moreover, the levels of the SQSTM1 protein, which should be degradable as an autophagy adaptor, were much higher in DU145 than in LNCaP and PC-3 cells, but were significantly decreased after ATG5 restoration in DU145 cells. However, expression of wild-type ATG5 in DU145 or knockdown of ATG5 in LNCaP and PC-3 cells did not change the inhibitory effects of VPA on these cells. Collectively, these results indicated that VPA-induced autophagy in prostate cancer cells depended on ATG5 and more importantly, that the autophagy pathway was genetically impaired in DU145 cells, suggesting caution in interpreting autophagic responses in this cell line.
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Affiliation(s)
- Dong-Yun Ouyang
- Department of Immunobiology, Institute of Tissue Transplantation and Immunology, Jinan University, Guangzhou, China
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Bitman M, Vrzal R, Dvorak Z, Pavek P. Valproate activates ERK signaling pathway in primary human hepatocytes. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2012; 158:39-43. [PMID: 23073524 DOI: 10.5507/bp.2012.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Accepted: 03/28/2012] [Indexed: 12/24/2022] Open
Abstract
AIM Valproic acid (VPA) is a widely-used anticonvulsant and mood-stabilizing agent. VPA is also known to inhibit histone deacetylases (HDACs) affecting the expression of numerous genes. METHODS In the present study, we examined the effect of VPA on the extracellular signal-related kinase (ERK, p42/p44) pathway (Ras-Raf-MEK-ERK) belonging to the mitogen-activated protein kinases (MAPKs) pathways in primary human hepatocytes. In the liver, the pathway is associated with progression of hepatocellular carcinoma. RESULTS We found that VPA in a therapeutically relevant concentration (500 µM) activates the ERK pathway, as indicated by increased ERK Thr202/Tyr204 phosphorylation. Interestingly, a prototype HDAC inhibitor, trichostatin A, also activated ERK phosphorylation in primary human hepatocytes. These data suggest that HDAC inhibition might be the primary stimulus for ERK pathway activation in primary human hepatocytes. Notably, U0126, a MEK1 inhibitor, was ineffective in inhibiting ERK pathway activation, likely due to its metabolic deactivation in metabolically competent primary human hepatocytes. CONCLUSION We conclude that VPA activates the ERK pathway in primary human hepatocytes.
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Affiliation(s)
- Michal Bitman
- Department of Pharmacology and Toxicology, Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 500 05 Hradec Kralove, Czech Republic
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Chemotherapy-associated angiogenesis in neuroblastoma tumors. THE AMERICAN JOURNAL OF PATHOLOGY 2012; 180:1370-7. [PMID: 22285670 DOI: 10.1016/j.ajpath.2011.12.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Revised: 12/01/2011] [Accepted: 12/13/2011] [Indexed: 12/31/2022]
Abstract
The influences of cytotoxic drugs on endothelial cells remain incompletely understood. Herein, we examined the effects of chemotherapeutic agents in experimental angiogenesis models and analyzed vessel densities in clinical neuroblastoma tumor samples. Cisplatin (20 to 500 ng/mL), doxorubicin (4 to 100 ng/mL), and vincristine (0.5 to 4 ng/mL), drugs commonly involved in neuroblastoma therapy protocols, induced pro-angiogenic effects in different angiogenesis models. They enhanced endothelial cell tube formation, endothelial cell sprouting from spheroids, formation of tip cells in the sprouting assay, expression of αvβ3 integrin, and vitronectin binding. All three drugs increased global cellular kinase phosphorylation levels, including the angiogenesis-relevant molecules protein kinase Cβ and Akt. Pharmacological inhibition of protein kinase Cβ or Akt upstream of phosphatidylinositol 3-kinase reduced chemotherapy-induced endothelial cell tube formation. Moreover, the investigated chemotherapeutics dose dependently induced vessel formation in the chick chorioallantoic membrane assay. Tumor samples from seven high-risk patients with neuroblastoma were analyzed for vessel density by IHC. Results revealed that neuroblastoma samples taken after chemotherapy consistently showed an enhanced microvessel density compared with the corresponding samples taken before chemotherapy. In conclusion, our data show that chemotherapy can activate endothelial cells by inducing multiple pro-angiogenic signaling pathways and exert pro-angiogenic effects in vitro and in vivo. Moreover, we report a previously unrecognized clinical phenomenon that might, in part, be explained by our experimental observations: chemotherapy-associated enhanced vessel formation in tumors from patients with neuroblastoma.
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Jin G, Bausch D, Knightly T, Liu Z, Li Y, Liu B, Lu J, Chong W, Velmahos GC, Alam HB. Histone deacetylase inhibitors enhance endothelial cell sprouting angiogenesis in vitro. Surgery 2011; 150:429-35. [PMID: 21878227 DOI: 10.1016/j.surg.2011.07.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2011] [Accepted: 07/06/2011] [Indexed: 01/01/2023]
Abstract
BACKGROUND Treatment with histone deacetylases inhibitors (HDACi) such as valproic acid (VPA) and suberoylanilide hydroxamic acid (SAHA) has been shown to improve survival after lethal insults through mechanisms that are incompletely understood. Cell survival under adverse conditions requires a healthy network of capillaries to ensure adequate oxygen delivery. Angiogenic activation of endothelial cells to migrate and form sprouts is associated with characteristic changes in gene expression profiles. Because HDACi can modulate expression of various genes involved in angiogenic activity, we investigated the effect of these agents on capillary-like sprout formation in this study. METHODS Human umbilical vein endothelial cells (HUVECs) were cultured as multicellular spheroids within a type I collagen matrix, which promotes formation of sprouts resembling angiogenesis in vitro. HUVECs were cultured as multicellular spheroids within a type I collagen matrix, which promotes formation of sprouts (in vitro angiogenesis). Cells were cultured under the following conditions: Control (no growth factors); VPA (1 mmol/L); vascular endothelial growth factor (VEGF; 10 ng/mL); VPA + VEGF; SAHA (5 mmol/L), and SAHA + VEGF. After 24 hours of treatment, the length of spheroid sprouting and cell migration was assessed quantitatively. The levels of acetylated histone H3, phosphor-extracellular signal-regulated kinase (ERK)1/2, and β-catenin in HUVECs were measured by Western blotting at 6 hours after treatment. RESULTS High levels of acetylated histone H3 were detected in VPA and SAHA treated-groups. Compared with the VEGF-alone treated group (2379 ± 147.1 μm), the spheroid sprouting was 1.7 times increased with VPA and VEGF combined treatment (3996 ± 192.5 μm; P < .01). Cell migrations did not show a significant difference after addition of VPA, whereas SAHA suppressed migration. Expression of β-catenin was significantly increased by VPA and SAHA treatments. Addition of VPA greatly enhanced expression of phosphor-ERK1/2. CONCLUSION Exposure of HUVECs to VPA and SAHA increased the expression of β-catenin and enhanced spheroid sprout formation in vitro. Modulation of HDAC-dependent pathways may offer a novel approach to alter angiogenic processes and provide a useful therapeutic target.
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Affiliation(s)
- Guang Jin
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA
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34
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Stumpf U, Michaelis M, Klassert D, Cinatl J, Altrichter J, Windolf J, Hergenröther J, Scholz M. Selection of proangiogenic ascorbate derivatives and their exploitation in a novel drug-releasing system for wound healing. Wound Repair Regen 2011; 19:597-607. [DOI: 10.1111/j.1524-475x.2011.00718.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ulla Stumpf
- Department of Traumatology and Hand Surgery; Heinrich-Heine University; Düsseldorf; Germany
| | | | | | - Jindrich Cinatl
- Institute for Medical Virology; Johann Wolfgang Goethe University; Frankfurt/Main; Germany
| | | | - Joachim Windolf
- Department of Traumatology and Hand Surgery; Heinrich-Heine University; Düsseldorf; Germany
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35
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Karén J, Rodriguez A, Friman T, Dencker L, Sundberg C, Scholz B. Effects of the histone deacetylase inhibitor valproic acid on human pericytes in vitro. PLoS One 2011; 6:e24954. [PMID: 21966390 PMCID: PMC3178576 DOI: 10.1371/journal.pone.0024954] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Accepted: 08/25/2011] [Indexed: 11/18/2022] Open
Abstract
Microvascular pericytes are of key importance in neoformation of blood vessels, in stabilization of newly formed vessels as well as maintenance of angiostasis in resting tissues. Furthermore, pericytes are capable of differentiating into pro-fibrotic collagen type I producing fibroblasts. The present study investigates the effects of the histone deacetylase (HDAC) inhibitor valproic acid (VPA) on pericyte proliferation, cell viability, migration and differentiation. The results show that HDAC inhibition through exposure of pericytes to VPA in vitro causes the inhibition of pericyte proliferation and migration with no effect on cell viability. Pericyte exposure to the potent HDAC inhibitor Trichostatin A caused similar effects on pericyte proliferation, migration and cell viability. HDAC inhibition also inhibited pericyte differentiation into collagen type I producing fibroblasts. Given the importance of pericytes in blood vessel biology a qPCR array focusing on the expression of mRNAs coding for proteins that regulate angiogenesis was performed. The results showed that HDAC inhibition promoted transcription of genes involved in vessel stabilization/maturation in human microvascular pericytes. The present in vitro study demonstrates that VPA influences several aspects of microvascular pericyte biology and suggests an alternative mechanism by which HDAC inhibition affects blood vessels. The results raise the possibility that HDAC inhibition inhibits angiogenesis partly through promoting a pericyte phenotype associated with stabilization/maturation of blood vessels.
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Affiliation(s)
- Jakob Karén
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Alejandro Rodriguez
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Tomas Friman
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Lennart Dencker
- Department of Pharmaceutical Bioscience, Uppsala University, Uppsala, Sweden
| | - Christian Sundberg
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
- Department of Women and Children's Health, Uppsala University Hospital, Uppsala, Sweden
- * E-mail:
| | - Birger Scholz
- Department of Pharmaceutical Bioscience, Uppsala University, Uppsala, Sweden
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Kikuchi K, Iga JI, Tayoshi S, Nakataki M, Watanabe S, Numata S, Ohmori T. Lithium decreases VEGF mRNA expression in leukocytes of healthy subjects and patients with bipolar disorder. Hum Psychopharmacol 2011; 26:358-63. [PMID: 21721043 DOI: 10.1002/hup.1215] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2010] [Accepted: 05/13/2011] [Indexed: 11/10/2022]
Abstract
OBJECTIVES Vascular endothelial growth factor (VEGF) is thought to be involved in the pathophysiology of mood disorders and the target of antidepressants. The aim of this study was to elucidate molecular effects of lithium on VEGF expression by using leukocytes of healthy subjects and patients with bipolar disorder. METHODS Eight healthy male subjects participated in the first study. Lithium was prescribed for 2 weeks, enough to reach therapeutic serum concentration. Leukocyte counts and serum lithium concentrations were determined at baseline, at 1- and 2-week medication, and at 2 weeks after stopping medication. VEGF mRNA levels were also examined in nine lithium-treated bipolar patients and healthy controls in the second study. RESULTS In the first study, leukocyte counts were significantly increased at 2 weeks compared with those at baseline and were normalized after 2 weeks. VEGF mRNA levels were significantly decreased at 2 weeks and after 2 weeks compared with those at baseline. Consistent with the first study, VEGF mRNA levels were significantly decreased in the lithium-treated bipolar patients compared with healthy controls. CONCLUSIONS Our investigation suggests that VEGF mRNA expression may be useful as a peripheral marker of the effects of lithium.
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Affiliation(s)
- Kumiko Kikuchi
- Department of Psychiatry, Course of Integrated Brain Sciences, University of Tokushima School of Medicine, Tokushima, Japan
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37
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ERK1/2 activation plays important roles in the opposite effects of Trichostatin A in non-cancer and cancer cells. Toxicon 2011; 57:932-7. [DOI: 10.1016/j.toxicon.2011.03.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Revised: 02/26/2011] [Accepted: 03/08/2011] [Indexed: 11/18/2022]
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38
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Gotfryd K, Hansen M, Kawa A, Ellerbeck U, Nau H, Berezin V, Bock E, Walmod PS. The teratogenic potencies of valproic acid derivatives and their effects on biological end-points are related to changes in histone deacetylase and Erk1/2 activities. Basic Clin Pharmacol Toxicol 2011; 109:164-74. [PMID: 21439023 DOI: 10.1111/j.1742-7843.2011.00702.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Valproic acid (VPA) is a known teratogen. In the present study, the effects of VPA and seven VPA derivatives with different teratogenic potencies (isobutyl-, 5-methyl-, ethyl-, propyl-, butyl-, pentyl- and hexyl-4-yn-VPA) were investigated in L929 cells in vitro. Evaluated end-points included changes in cell proliferation, growth, cell cycle distribution, morphology, speed, glycogen synthase kinase-3β (GSK-3β) and Erk1/2 phosphorylation, and histone H3 acetylation. Changes in proliferation, growth, speed, Erk1/2 and GSK-3β-Tyr216 phosphorylation, and H3 acetylation were significantly associated with the teratogenic potencies of the VPA derivatives. However, in contrast to changes in Erk1/2 phosphorylation and H3 acetylation, significant changes in GSK-3β phosphorylation could only be obtained in response to prolonged incubation at high drug concentration. There was an association between changes in H3 acetylation and GSK-3β-Tyr216 phosphorylation, whereas none of these end-points were associated with changes in Erk1/2 phosphorylation. These results suggest that the teratogenic potencies of VPA and VPA derivatives are related to effects on both Erk1/2 and histone deacetylase activities, whereas changes in GSK-3β activity are possibly a secondary effect.
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Affiliation(s)
- Kamil Gotfryd
- Protein Laboratory, Institute of Neuroscience and Pharmacology, Faculty of Health Sciences, University of Copenhagen, Denmark
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Chen Q, Ouyang DY, Geng M, Xu LH, Zhang YT, Wang FP, He XH. Valproic acid exhibits biphasic effects on apoptotic cell death of activated lymphocytes through differential modulation of multiple signaling pathways. J Immunotoxicol 2011; 8:210-8. [PMID: 21457087 DOI: 10.3109/1547691x.2011.568979] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Valproic acid (VPA), a histone deacetylase (HDAC) inhibitor, possesses potent anti-tumor activity against a variety of malignant cells. However, its action on lymphocytes and the underlying mechanism are not completely understood. In this study, we aimed to analyze the effects of VPA on the proliferation, activation, and apoptosis of murine lymphocytes activated with concanavalin A (ConA). Our results showed that VPA inhibited the proliferation of ConA-activated lymphocytes in a dose-dependent manner. Low-dose VPA (≤ 1.1 mM) enhanced CD69 expression on the activated lymphocytes, whereas at high doses (≥ 3.3 mM) it decreased CD69 expression. Furthermore, VPA reduced activation-induced apoptotic cell death at low doses, but at high doses it promoted apoptotic cell death of activated lymphocytes dramatically. It was found that the Bax/Bcl-2 ratio and phosphorylation of histone H2A.X was decreased at low doses of VPA but was increased at high doses. The phosphorylation of STAT3 was also differentially regulated by different doses of VPA. VPA, at 5 mM induced the phosphorylation of p38 but not JNK and extracellular signal-regulated kinase (ERK)1/2. In addition, VPA induced a dose-dependent increase in the acetylation of histone H3. These results demonstrate that VPA exhibits dose-dependent biphasic effect on apoptosis of activated lymphocytes probably through differential modulation of several apoptosis-related signaling pathways.
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Affiliation(s)
- Qing Chen
- Institute of Tissue Transplantation and Immunology, Jinan University, Guangzhou, P.R. China
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40
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Vrzal R, Doricakova A, Novotna A, Bachleda P, Bitman M, Pavek P, Dvorak Z. Valproic acid augments vitamin D receptor-mediated induction of CYP24 by vitamin D3: A possible cause of valproic acid-induced osteomalacia? Toxicol Lett 2011; 200:146-53. [DOI: 10.1016/j.toxlet.2010.11.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Revised: 11/11/2010] [Accepted: 11/12/2010] [Indexed: 10/18/2022]
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Zhou B, Margariti A, Zeng L, Xu Q. Role of histone deacetylases in vascular cell homeostasis and arteriosclerosis. Cardiovasc Res 2011; 90:413-20. [DOI: 10.1093/cvr/cvr003] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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Ogbomo H, Biru T, Michaelis M, Loeschmann N, Doerr HW, Cinatl J. The anti-tumoral drug enzastaurin inhibits natural killer cell cytotoxicity via activation of glycogen synthase kinase-3β. Biochem Pharmacol 2011; 81:251-8. [DOI: 10.1016/j.bcp.2010.09.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Revised: 09/06/2010] [Accepted: 09/28/2010] [Indexed: 01/18/2023]
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Clay HB, Sillivan S, Konradi C. Mitochondrial dysfunction and pathology in bipolar disorder and schizophrenia. Int J Dev Neurosci 2010; 29:311-24. [PMID: 20833242 DOI: 10.1016/j.ijdevneu.2010.08.007] [Citation(s) in RCA: 281] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Revised: 08/25/2010] [Accepted: 08/26/2010] [Indexed: 12/20/2022] Open
Abstract
Bipolar disorder (BPD) and schizophrenia (SZ) are severe psychiatric illnesses with a combined prevalence of 4%. A disturbance of energy metabolism is frequently observed in these disorders. Several pieces of evidence point to an underlying dysfunction of mitochondria: (i) decreased mitochondrial respiration; (ii) changes in mitochondrial morphology; (iii) increases in mitochondrial DNA (mtDNA) polymorphisms and in levels of mtDNA mutations; (iv) downregulation of nuclear mRNA molecules and proteins involved in mitochondrial respiration; (v) decreased high-energy phosphates and decreased pH in the brain; and (vi) psychotic and affective symptoms, and cognitive decline in mitochondrial disorders. Furthermore, transgenic mice with mutated mitochondrial DNA polymerase show mood disorder-like phenotypes. In this review, we will discuss the genetic and physiological components of mitochondria and the evidence for mitochondrial abnormalities in BPD and SZ. We will furthermore describe the role of mitochondria during brain development and the effect of current drugs for mental illness on mitochondrial function. Understanding the role of mitochondria, both developmentally as well as in the ailing brain, is of critical importance to elucidate pathophysiological mechanisms in psychiatric disorders.
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Affiliation(s)
- Hayley B Clay
- Neuroscience Graduate Program, Vanderbilt University, Nashville, TN 37232, USA
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44
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Barter MJ, Pybus L, Litherland GJ, Rowan AD, Clark IM, Edwards DR, Cawston TE, Young DA. HDAC-mediated control of ERK- and PI3K-dependent TGF-β-induced extracellular matrix-regulating genes. Matrix Biol 2010; 29:602-12. [DOI: 10.1016/j.matbio.2010.05.002] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 04/14/2010] [Accepted: 05/03/2010] [Indexed: 01/28/2023]
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45
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Gotfryd K, Skladchikova G, Lepekhin EA, Berezin V, Bock E, Walmod PS. Cell type-specific anti-cancer properties of valproic acid: independent effects on HDAC activity and Erk1/2 phosphorylation. BMC Cancer 2010; 10:383. [PMID: 20663132 PMCID: PMC2918577 DOI: 10.1186/1471-2407-10-383] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2010] [Accepted: 07/21/2010] [Indexed: 11/16/2022] Open
Abstract
Background The anti-epileptic drug valproic acid (VPA) has attracted attention as an anti-cancer agent. Methods The present study investigated effects of VPA exposure on histone deacetylase (HDAC) inhibition, cell growth, cell speed, and the degree of Erk1/2 phosphorylation in 10 cell lines (BT4C, BT4Cn, U87MG, N2a, PC12-E2, CSML0, CSML100, HeLa, L929, Swiss 3T3). Results VPA induced significant histone deacetylase (HDAC) inhibition in most of the cell lines, but the degree of inhibition was highly cell type-specific. Moreover, cell growth, motility and the degree of Erk1/2 phosphorylation were inhibited, activated, or unaffected by VPA in a cell type-specific manner. Importantly, no relationship was found between the effects of VPA on HDAC inhibition and changes in the degree of Erk1/2 phosphorylation, cell growth, or motility. In contrast, VPA-induced modulation of the MAPK pathway downstream of Ras but upstream of MEK (i.e., at the level of Raf) was important for changes in cell speed. Conclusions These results suggest that VPA can modulate the degree of Erk1/2 phosphorylation in a manner unrelated to HDAC inhibition and emphasize that changes in the degree of Erk1/2 phosphorylation are also important for the anti-cancer properties of VPA.
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Affiliation(s)
- Kamil Gotfryd
- Protein Laboratory, Department of Neuroscience and Pharmacology, Faculty of Health Sciences, University of Copenhagen, Denmark
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46
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Lei WW, Zhang KH, Pan XC, Wang DM, Hu Y, Yang YN, Song JG. Histone deacetylase 1 and 2 differentially regulate apoptosis by opposing effects on extracellular signal-regulated kinase 1/2. Cell Death Dis 2010; 1:e44. [PMID: 21364650 PMCID: PMC3032309 DOI: 10.1038/cddis.2010.21] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Revised: 03/26/2010] [Accepted: 04/01/2010] [Indexed: 11/22/2022]
Abstract
Histone deacetylases (HDACs) are epigenetic regulators that are important for the control of various pathophysiological events. We found that HDAC inhibitors completely abolished transforming growth factor-β1 (TGF-β1)-induced apoptosis in AML-12 and primary mouse hepatocytes. Expression of a dominant-negative mutant of HDAC1 or downregulation of HDAC1 by RNAi both suppressed TGF-β1-induced apoptosis. In addition, overexpression of HDAC1 enhanced TGF-β1-induced apoptosis, and the rescue of HDAC1 expression in HDAC1 RNAi cells restored the apoptotic response of cells to TGF-β1. These data indicate that HDAC1 functions as a proapoptotic factor in TGF-β1-induced apoptosis. In contrast, downregulation of HDAC2 by RNAi increased spontaneous apoptosis and markedly enhanced TGF-β1-induced apoptosis, suggesting that HDAC2 has a reciprocal role in controlling cell survival. Furthermore, inhibition of extracellular signal-regulated kinase 1/2 (ERK1/2) by MEK1 inhibitor PD98059 or expression of a kinase-dead mutant of MEK1 restored the apoptotic response to TGF-β1 in HDAC1 RNAi cells. Strikingly, HDAC2 RNAi caused an inhibition of ERK1/2, and the spontaneous apoptosis can be abolished by reactivation of ERK1/2. Taken together, our data demonstrate that HDAC1 and 2 reciprocally affect cell viability by differential regulation of ERK1/2; these observations provide insight into the roles and potential mechanisms of HDAC1 and 2 in apoptosis.
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Affiliation(s)
- W-W Lei
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - K-H Zhang
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - X-C Pan
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - D-M Wang
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Y Hu
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Y-N Yang
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - J-G Song
- Laboratory of Molecular Cell Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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47
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Härtel FV, Holl M, Arshad M, Aslam M, Gündüz D, Weyand M, Micoogullari M, Abdallah Y, Piper HM, Noll T. Transient hypoxia induces ERK-dependent anti-apoptotic cell survival in endothelial cells. Am J Physiol Cell Physiol 2010; 298:C1501-9. [PMID: 20200209 DOI: 10.1152/ajpcell.00333.2009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Ischemia-induced apoptosis of endothelial cells may contribute to tissue injury, organ failure, and transplantation rejection. However, little is known about survival mechanisms capable to counteract endothelial apoptosis. This study investigated the potential role of an endogenous anti-apoptotic response elicited by transient hypoxia, capable to avert ongoing apoptosis in endothelial cells. Experiments were carried out in three different types of cultured endothelial cells (human umbilical vein, pig aorta, and from rat coronary microvasculature). As a pro-apoptotic challenge endothelial cells were cultured in serum-free medium and subjected to hypoxia for 2 h. We found that transient hypoxia reduced caspase 3 activation within 1 h of hypoxia. Accordingly, the number of apoptotic cells was reduced after 24 h of reoxygenation. This was true for all three cell types analyzed. Analysis of Akt and mitogen-activated protein kinase kinase (MEK)/extracellular signal-regulated kinase (ERK) pathways revealed that hypoxia induced a transient activation of ERK 2 but not of Akt. ERK 2 phosphorylation preceded the phosphorylation of pro-apoptotic molecule Bad at Ser112, an inhibitory phosphorylation site specific for ERK. The protective effects of hypoxia regarding Bad phosphorylation, caspase 3 activation, and apoptosis were abolished by MEK 1/2 inhibitors, PD98059 or UO126, as well as by antisense oligonucleotides directed against ERK 1/2. Furthermore, inhibition of this pathway inhibited hypoxia-induced increase in mitochondrial membrane potential. The present study demonstrates that transient hypoxia induces a novel survival mechanism that protects endothelial cells against apoptosis. This endogenous process involves MEK/ERK-mediated inhibition of the pro-apoptotic molecule Bad and caspase 3.
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Affiliation(s)
- F V Härtel
- Physiologisches Institut, Justus-Liebig-Universität, Giessen, Germany
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Ogbomo H, Michaelis M, Altenbrandt B, Doerr HW, Cinatl J. A novel immunomodulatory mechanism of ribavirin in suppressing natural killer cell function. Biochem Pharmacol 2010; 79:188-97. [DOI: 10.1016/j.bcp.2009.07.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2009] [Revised: 07/30/2009] [Accepted: 07/31/2009] [Indexed: 01/13/2023]
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Ogbomo H, Michaelis M, Geiler J, van Rikxoort M, Muster T, Egorov A, Doerr HW, Cinatl J. Tumor cells infected with oncolytic influenza A virus prime natural killer cells for lysis of resistant tumor cells. Med Microbiol Immunol 2009; 199:93-101. [PMID: 20012989 DOI: 10.1007/s00430-009-0139-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2009] [Indexed: 12/13/2022]
Abstract
Tumor resistance to lysis by resting natural killer (NK) cells may be overcome by priming of NK cells with cytokines or by binding of NK activating receptors to ligands expressed on target cells. In this study, major histocompatibility complex class I (MHC-I)-negative LNCaP and MHC-I-positive DU145 cells were infected with genetically modified influenza A virus lacking the non-structural gene 1 (NS1 IAV). The cells were used to investigate the influence of NS1 IAV infection on NK cell lysis of tumor cells as well as to prime NK cells for lysis of LNCaP and DU145 cells. While LNCaP cells infected with DeltaNS1 IAV showed enhanced lysis when compared with mock-infected cells (93% +/- 1.47 vs. 52% +/- 0.74), both mock-infected and DeltaNS1 IAV-infected DU145 cells were resistant to NK cell lysis. Moreover, NK cells primed with DeltaNS1 IAV-infected LNCaP/DU145 cells effectively lysed resistant DU145 and sensitive LNCaP cells to a greater extent than NK cells primed with mock-infected LNCaP/DU145 or non-primed NK cells. Also, NK cell priming with DeltaNS1 IAV-infected tumor cells enhanced extracellular signal-regulated kinase phosphorylation and increased granule release in NK cells. The increased granule release was specifically mediated by NKp46, which eventually potentiated NK cells primed with DeltaNS1 IAV-infected tumor cells to overcome the inhibitory effects posed by MHC-I expression on DU145 cells. These findings show that in addition to direct lytic activity of NK cells, DeltaNS1 IAV may influence anti-tumoral responses by priming NK cells.
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Affiliation(s)
- Henry Ogbomo
- Institut für Medizinische Virologie, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt am Main, Germany
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Effect of mood stabilizers on gene expression in lymphoblastoid cells. J Neural Transm (Vienna) 2009; 117:155-64. [PMID: 19949822 DOI: 10.1007/s00702-009-0340-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2009] [Accepted: 11/09/2009] [Indexed: 01/19/2023]
Abstract
Lithium and valproate are widely used as effective mood stabilizers for the treatment of bipolar disorder. To elucidate the common molecular effect of these drugs on non-neuronal cells, we studied the gene expression changes induced by these drugs. Lymphoblastoid cell cultures derived from lymphocytes harvested from three healthy subjects were incubated in medium containing therapeutic concentrations of lithium (0.75 mM) or valproate (100 microg ml(-1)) for 7 days. Gene expression profiling was performed using an Affymetrix HGU95Av2 array containing approximately 12,000 probe sets. We identified 44 and 416 genes that were regulated by lithium and valproate, respectively. Most of the genes were not commonly affected by the two drugs. Among the 18 genes commonly altered by both drugs, vascular endothelial growth factor A (VEGFA), which is one of the VEGF gene isoforms, showed the largest downregulation. Our findings indicate that these two structurally dissimilar mood stabilizers, lithium, and valproate, alter VEGFA expression. VEGFA might be a useful biomarker of their effects on peripheral tissue.
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