1
|
Guadagni A, Barone S, Alfano AI, Pelliccia S, Bello I, Panza E, Summa V, Brindisi M. Tackling triple negative breast cancer with HDAC inhibitors: 6 is the isoform! Eur J Med Chem 2024; 279:116884. [PMID: 39321690 DOI: 10.1016/j.ejmech.2024.116884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2024] [Revised: 09/10/2024] [Accepted: 09/13/2024] [Indexed: 09/27/2024]
Abstract
Triple negative breast cancer (TNBC) is a highly aggressive breast cancer subtype characterized by the lack in the expression of estrogen and progesterone receptors, and human epidermal growth factor receptors 2. TNBC stands out among other breast cancers subtypes for its high aggressiveness and invasiveness, and for the limited therapeutic options available, which justify the poor survival rates registered for this breast cancer subtype. Compelling new evidence pointed out the role of epigenetic modifications in cancer, prompting tumor cell uncontrolled proliferation, epithelial-to-mesenchymal transition, and metastatic events. In this review we showcase the latest evidence supporting the involvement of histone deacetylase 6 (HDAC6) in cancer pathways strictly related to TNBC subtype, also tracking the latest advancements in the identification of novel HDAC6 inhibitors which showed efficacy in TNBC models, offering insights into the potential of targeting this key epigenetic player as an innovative therapeutic option for the treatment of TNBC.
Collapse
Affiliation(s)
- Anna Guadagni
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Simona Barone
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Antonella Ilenia Alfano
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Sveva Pelliccia
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Ivana Bello
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Elisabetta Panza
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Vincenzo Summa
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131, Naples, Italy
| | - Margherita Brindisi
- Department of Pharmacy (DoE 2023-2027), University of Naples Federico II, via D. Montesano 49, 80131, Naples, Italy.
| |
Collapse
|
2
|
Pérez-Yanes S, Lorenzo-Sánchez I, Cabrera-Rodríguez R, García-Luis J, Trujillo-González R, Estévez-Herrera J, Valenzuela-Fernández A. The ZIKV NS5 Protein Aberrantly Alters the Tubulin Cytoskeleton, Induces the Accumulation of Autophagic p62 and Affects IFN Production: HDAC6 Has Emerged as an Anti-NS5/ZIKV Factor. Cells 2024; 13:598. [PMID: 38607037 PMCID: PMC11011779 DOI: 10.3390/cells13070598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/13/2024] Open
Abstract
Zika virus (ZIKV) infection and pathogenesis are linked to the disruption of neurogenesis, congenital Zika syndrome and microcephaly by affecting neural progenitor cells. Nonstructural protein 5 (NS5) is the largest product encoded by ZIKV-RNA and is important for replication and immune evasion. Here, we studied the potential effects of NS5 on microtubules (MTs) and autophagy flux, together with the interplay of NS5 with histone deacetylase 6 (HDAC6). Fluorescence microscopy, biochemical cell-fractionation combined with the use of HDAC6 mutants, chemical inhibitors and RNA interference indicated that NS5 accumulates in nuclear structures and strongly promotes the acetylation of MTs that aberrantly reorganize in nested structures. Similarly, NS5 accumulates the p62 protein, an autophagic-flux marker. Therefore, NS5 alters events that are under the control of the autophagic tubulin-deacetylase HDAC6. HDAC6 appears to degrade NS5 by autophagy in a deacetylase- and BUZ domain-dependent manner and to control the cytoplasmic expression of NS5. Moreover, NS5 inhibits RNA-mediated RIG-I interferon (IFN) production, resulting in greater activity when autophagy is inhibited (i.e., effect correlated with NS5 stability). Therefore, it is conceivable that NS5 contributes to cell toxicity and pathogenesis, evading the IFN-immune response by overcoming HDAC6 functions. HDAC6 has emerged as an anti-ZIKV factor by targeting NS5.
Collapse
Affiliation(s)
- Silvia Pérez-Yanes
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain; (S.P.-Y.); (I.L.-S.); (R.C.-R.); (J.G.-L.)
| | - Iria Lorenzo-Sánchez
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain; (S.P.-Y.); (I.L.-S.); (R.C.-R.); (J.G.-L.)
| | - Romina Cabrera-Rodríguez
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain; (S.P.-Y.); (I.L.-S.); (R.C.-R.); (J.G.-L.)
| | - Jonay García-Luis
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain; (S.P.-Y.); (I.L.-S.); (R.C.-R.); (J.G.-L.)
| | - Rodrigo Trujillo-González
- Department of Análisis Matemático, Facultad de Ciencias, Universidad de La Laguna, 38296 La Laguna, Spain;
| | - Judith Estévez-Herrera
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain; (S.P.-Y.); (I.L.-S.); (R.C.-R.); (J.G.-L.)
| | - Agustín Valenzuela-Fernández
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain; (S.P.-Y.); (I.L.-S.); (R.C.-R.); (J.G.-L.)
| |
Collapse
|
3
|
Romhányi D, Szabó K, Kemény L, Groma G. Histone and Histone Acetylation-Related Alterations of Gene Expression in Uninvolved Psoriatic Skin and Their Effects on Cell Proliferation, Differentiation, and Immune Responses. Int J Mol Sci 2023; 24:14551. [PMID: 37833997 PMCID: PMC10572426 DOI: 10.3390/ijms241914551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/11/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
Psoriasis is a chronic immune-mediated skin disease in which the symptom-free, uninvolved skin carries alterations in gene expression, serving as a basis for lesion formation. Histones and histone acetylation-related processes are key regulators of gene expression, controlling cell proliferation and immune responses. Dysregulation of these processes is likely to play an important role in the pathogenesis of psoriasis. To gain a complete overview of these potential alterations, we performed a meta-analysis of a psoriatic uninvolved skin dataset containing differentially expressed transcripts from nearly 300 individuals and screened for histones and histone acetylation-related molecules. We identified altered expression of the replication-dependent histones HIST2H2AA3 and HIST2H4A and the replication-independent histones H2AFY, H2AFZ, and H3F3A/B. Eight histone chaperones were also identified. Among the histone acetyltransferases, ELP3 and KAT5 and members of the ATAC, NSL, and SAGA acetyltransferase complexes are affected in uninvolved skin. Histone deacetylation-related alterations were found to affect eight HDACs and members of the NCOR/SMRT, NURD, SIN3, and SHIP HDAC complexes. In this article, we discuss how histone and histone acetylation-related expression changes may affect proliferation and differentiation, as well as innate, macrophage-mediated, and T cell-mediated pro- and anti-inflammatory responses, which are known to play a central role in the development of psoriasis.
Collapse
Affiliation(s)
- Dóra Romhányi
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (D.R.); (K.S.); (L.K.)
| | - Kornélia Szabó
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (D.R.); (K.S.); (L.K.)
- Hungarian Centre of Excellence for Molecular Medicine-University of Szeged Skin Research Group (HCEMM-USZ Skin Research Group), H-6720 Szeged, Hungary
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Lajos Kemény
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (D.R.); (K.S.); (L.K.)
- Hungarian Centre of Excellence for Molecular Medicine-University of Szeged Skin Research Group (HCEMM-USZ Skin Research Group), H-6720 Szeged, Hungary
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| | - Gergely Groma
- Department of Dermatology and Allergology, University of Szeged, H-6720 Szeged, Hungary; (D.R.); (K.S.); (L.K.)
- HUN-REN-SZTE Dermatological Research Group, H-6720 Szeged, Hungary
| |
Collapse
|
4
|
Hodge G, Jersmann H, Holmes M, Asare P, Roscioli E, Reynolds PN, Hodge S. BLTR1 Is Decreased in Steroid Resistant Pro-Inflammatory CD28nullCD8+ T Lymphocytes in Patients with COPD-The Spillover Hypothesis Explained? BIOLOGY 2023; 12:1261. [PMID: 37759660 PMCID: PMC10525726 DOI: 10.3390/biology12091261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/08/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
INTRODUCTION Pro-inflammatory CD8+ T cells are increased in the lungs and also in the peripheral circulation of both smokers and chronic obstructive pulmonary disease (COPD) patients. The reason for this is unclear but has been described as a spillover from cells in the lungs that may cause the systemic inflammation noted in COPD. We have recently shown an increase in steroid-resistant CD28nullCD8+ senescent lymphocytes in the lungs and peripheral blood in COPD. Leukotreine B4 (LB4) receptor 1 (BLTR1) is involved in recruitment of CD8+ T cells to sites of inflammation, and we hypothesized that it may be involved in the migration of these senescent lymphocytes from the lungs in COPD. METHODS Via flow cytometry and Western blot BLTR1, IFNγ, and TNFα expression were measured in peripheral blood, BAL, and large proximal and small distal airway CD28±, CD8± T, and NKT-like cells from COPD patients and healthy control subjects (±prednisolone) following in vitro stimulation. Chemotaxis of leucocyte subsets was determined (±LB4 ± prednisolone). RESULTS There was an increase in BLTR1-CD28nullCD8+ lymphocytes in the lungs and blood in patients with COPD compared with controls. BLTR1-CD28nullCD8+ T and NKT-like cells produce more IFN/TNF than BLTR+ cells and fail to migrate to LTB4. Treatment with 1 µM prednisolone in vitro resulted in upregulation of BLTR1 expression in pro-inflammatory CD28nullCD8+ cells and migration to LB4. CONCLUSIONS Loss of BLTR1 is associated with an increased inflammatory potential of CD28nullCD8+ T cells and may allow these pro-inflammatory steroid-resistant cells to migrate to peripheral blood. Treatment strategies that upregulate BLTR1 may reduce systemic inflammation and associated co-morbidity in patients with COPD.
Collapse
Affiliation(s)
- Greg Hodge
- Chronic Inflammatory Lung Disease Laboratory, Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide 5001, Australia; (H.J.); (M.H.); (P.A.); (E.R.); (P.N.R.); (S.H.)
- Department of Medicine, University of Adelaide, Adelaide 5001, Australia
| | - Hubertus Jersmann
- Chronic Inflammatory Lung Disease Laboratory, Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide 5001, Australia; (H.J.); (M.H.); (P.A.); (E.R.); (P.N.R.); (S.H.)
- Department of Medicine, University of Adelaide, Adelaide 5001, Australia
| | - Mark Holmes
- Chronic Inflammatory Lung Disease Laboratory, Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide 5001, Australia; (H.J.); (M.H.); (P.A.); (E.R.); (P.N.R.); (S.H.)
- Department of Medicine, University of Adelaide, Adelaide 5001, Australia
| | - Patrick Asare
- Chronic Inflammatory Lung Disease Laboratory, Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide 5001, Australia; (H.J.); (M.H.); (P.A.); (E.R.); (P.N.R.); (S.H.)
- Department of Medicine, University of Adelaide, Adelaide 5001, Australia
| | - Eugene Roscioli
- Chronic Inflammatory Lung Disease Laboratory, Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide 5001, Australia; (H.J.); (M.H.); (P.A.); (E.R.); (P.N.R.); (S.H.)
- Department of Medicine, University of Adelaide, Adelaide 5001, Australia
| | - Paul N. Reynolds
- Chronic Inflammatory Lung Disease Laboratory, Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide 5001, Australia; (H.J.); (M.H.); (P.A.); (E.R.); (P.N.R.); (S.H.)
- Department of Medicine, University of Adelaide, Adelaide 5001, Australia
| | - Sandra Hodge
- Chronic Inflammatory Lung Disease Laboratory, Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide 5001, Australia; (H.J.); (M.H.); (P.A.); (E.R.); (P.N.R.); (S.H.)
- Department of Medicine, University of Adelaide, Adelaide 5001, Australia
| |
Collapse
|
5
|
Carmona B, Marinho HS, Matos CL, Nolasco S, Soares H. Tubulin Post-Translational Modifications: The Elusive Roles of Acetylation. BIOLOGY 2023; 12:biology12040561. [PMID: 37106761 PMCID: PMC10136095 DOI: 10.3390/biology12040561] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/27/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023]
Abstract
Microtubules (MTs), dynamic polymers of α/β-tubulin heterodimers found in all eukaryotes, are involved in cytoplasm spatial organization, intracellular transport, cell polarity, migration and division, and in cilia biology. MTs functional diversity depends on the differential expression of distinct tubulin isotypes and is amplified by a vast number of different post-translational modifications (PTMs). The addition/removal of PTMs to α- or β-tubulins is catalyzed by specific enzymes and allows combinatory patterns largely enriching the distinct biochemical and biophysical properties of MTs, creating a code read by distinct proteins, including microtubule-associated proteins (MAPs), which allow cellular responses. This review is focused on tubulin-acetylation, whose cellular roles continue to generate debate. We travel through the experimental data pointing to α-tubulin Lys40 acetylation role as being a MT stabilizer and a typical PTM of long lived MTs, to the most recent data, suggesting that Lys40 acetylation enhances MT flexibility and alters the mechanical properties of MTs, preventing MTs from mechanical aging characterized by structural damage. Additionally, we discuss the regulation of tubulin acetyltransferases/desacetylases and their impacts on cell physiology. Finally, we analyze how changes in MT acetylation levels have been found to be a general response to stress and how they are associated with several human pathologies.
Collapse
Affiliation(s)
- Bruno Carmona
- Centro de Química Estrutural, Institute of Molecular Sciences, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Av. D. João II, Lote 4.69.01, 1990-096 Lisboa, Portugal
| | - H Susana Marinho
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Catarina Lopes Matos
- Centro de Química Estrutural, Institute of Molecular Sciences, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Sofia Nolasco
- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Av. D. João II, Lote 4.69.01, 1990-096 Lisboa, Portugal
- CIISA-Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, 1300-477 Lisboa, Portugal
| | - Helena Soares
- Centro de Química Estrutural, Institute of Molecular Sciences, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
- Escola Superior de Tecnologia da Saúde de Lisboa, Instituto Politécnico de Lisboa, Av. D. João II, Lote 4.69.01, 1990-096 Lisboa, Portugal
| |
Collapse
|
6
|
Efficacy of selective histone deacetylase 6 inhibition in mouse models of Pseudomonas aeruginosa infection: A new glimpse for reducing inflammation and infection in cystic fibrosis. Eur J Pharmacol 2022; 936:175349. [DOI: 10.1016/j.ejphar.2022.175349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 10/17/2022] [Accepted: 10/20/2022] [Indexed: 11/22/2022]
|
7
|
Izquierdo-Serrano R, Fernández-Delgado I, Moreno-Gonzalo O, Martín-Gayo E, Calzada-Fraile D, Ramírez-Huesca M, Jorge I, Camafeita E, Abián J, Vicente-Manzanares M, Veiga E, Vázquez J, Sánchez-Madrid F. Extracellular vesicles from Listeria monocytogenes-infected dendritic cells alert the innate immune response. Front Immunol 2022; 13:946358. [PMID: 36131943 PMCID: PMC9483171 DOI: 10.3389/fimmu.2022.946358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
Communication through cell-cell contacts and extracellular vesicles (EVs) enables immune cells to coordinate their responses against diverse types of pathogens. The function exerted by EVs in this context depends on the proteins and nucleic acids loaded into EVs, which elicit specific responses involved in the resolution of infection. Several mechanisms control protein and nucleic acid loading into EVs; in this regard, acetylation has been described as a mechanism of cellular retention during protein sorting to exosomes. HDAC6 is a deacetylase involved in the control of cytoskeleton trafficking, organelle polarity and cell migration, defense against Listeria monocytogenes (Lm) infection and other immune related functions. Here, we show that the protein content of dendritic cells (DCs) and their secreted EVs (DEVs) vary during Lm infection, is enriched in proteins related to antiviral functions compared to non-infected cells and depends on HDAC6 expression. Analyses of the post-translational modifications revealed an alteration of the acetylation and ubiquitination profiles upon Lm infection both in DC lysates and DEVs. Functionally, EVs derived from infected DCs upregulate anti-pathogenic genes (e.g. inflammatory cytokines) in recipient immature DCs, which translated into protection from subsequent infection with vaccinia virus. Interestingly, absence of Listeriolysin O in Lm prevents DEVs from inducing this anti-viral state. In summary, these data underscore a new mechanism of communication between bacteria-infected DC during infection as they alert neighboring, uninfected DCs to promote antiviral responses.
Collapse
Affiliation(s)
- Raúl Izquierdo-Serrano
- Vascular Pathophysiology Area, Centro Nacional Investigaciones Cardiovasculares (CNIC) Carlos III, Madrid, Spain
| | - Irene Fernández-Delgado
- Vascular Pathophysiology Area, Centro Nacional Investigaciones Cardiovasculares (CNIC) Carlos III, Madrid, Spain
- Department of Immunology, Instituto Investigación Sanitaria Hospital Universitario La Princesa (IIS-HUP), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Olga Moreno-Gonzalo
- Vascular Pathophysiology Area, Centro Nacional Investigaciones Cardiovasculares (CNIC) Carlos III, Madrid, Spain
- Department of Immunology, Instituto Investigación Sanitaria Hospital Universitario La Princesa (IIS-HUP), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Enrique Martín-Gayo
- Department of Immunology, Instituto Investigación Sanitaria Hospital Universitario La Princesa (IIS-HUP), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Diego Calzada-Fraile
- Vascular Pathophysiology Area, Centro Nacional Investigaciones Cardiovasculares (CNIC) Carlos III, Madrid, Spain
| | - Marta Ramírez-Huesca
- Vascular Pathophysiology Area, Centro Nacional Investigaciones Cardiovasculares (CNIC) Carlos III, Madrid, Spain
- Department of Immunology, Instituto Investigación Sanitaria Hospital Universitario La Princesa (IIS-HUP), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Inmaculada Jorge
- Vascular Pathophysiology Area, Centro Nacional Investigaciones Cardiovasculares (CNIC) Carlos III, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Emilio Camafeita
- Vascular Pathophysiology Area, Centro Nacional Investigaciones Cardiovasculares (CNIC) Carlos III, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Joaquín Abián
- Biological and Environmental Proteomics, Institut d’Investigacions Biomèdiques de Barcelona, Consejo Superior de Investigaciones Científicas (IIBB-CSIC), Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Miguel Vicente-Manzanares
- Molecular Mechanisms Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer, Consejo Superior de Investigaciones Científicas (CSIC)-Universidad de Salamanca, Salamanca, Spain
| | - Esteban Veiga
- Department of Molecular & Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Madrid, Spain
| | - Jesús Vázquez
- Vascular Pathophysiology Area, Centro Nacional Investigaciones Cardiovasculares (CNIC) Carlos III, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Francisco Sánchez-Madrid
- Vascular Pathophysiology Area, Centro Nacional Investigaciones Cardiovasculares (CNIC) Carlos III, Madrid, Spain
- Department of Immunology, Instituto Investigación Sanitaria Hospital Universitario La Princesa (IIS-HUP), Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
- *Correspondence: Francisco Sánchez-Madrid,
| |
Collapse
|
8
|
Barone S, Cassese E, Alfano AI, Brindisi M, Summa V. Chasing a Breath of Fresh Air in Cystic Fibrosis (CF): Therapeutic Potential of Selective HDAC6 Inhibitors to Tackle Multiple Pathways in CF Pathophysiology. J Med Chem 2022; 65:3080-3097. [PMID: 35148101 PMCID: PMC8883472 DOI: 10.1021/acs.jmedchem.1c02067] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
![]()
Compelling new support
has been provided for histone deacetylase
isoform 6 (HDAC6) as a common thread in the generation of the dysregulated
proinflammatory and fibrotic phenotype in cystic fibrosis (CF). HDAC6
also plays a crucial role in bacterial clearance or killing as a direct
consequence of its effects on CF immune responses. Inhibiting HDAC6
functions thus eventually represents an innovative and effective strategy
to tackle multiple aspects of CF-associated lung disease. In this
Perspective, we not only showcase the latest evidence linking HDAC(6)
activity and expression with CF phenotype but also track the new dawn
of HDAC(6) modulators in CF and explore potentialities and future
perspectives in the field.
Collapse
Affiliation(s)
- Simona Barone
- Department of Pharmacy, Department of Excellence 2018-2022, School of Medicine and Surgery, University of Naples "Federico II", Via D. Montesano 49, I-80131 Naples, Italy
| | - Emilia Cassese
- Department of Pharmacy, Department of Excellence 2018-2022, School of Medicine and Surgery, University of Naples "Federico II", Via D. Montesano 49, I-80131 Naples, Italy
| | - Antonella Ilenia Alfano
- Department of Pharmacy, Department of Excellence 2018-2022, School of Medicine and Surgery, University of Naples "Federico II", Via D. Montesano 49, I-80131 Naples, Italy
| | - Margherita Brindisi
- Department of Pharmacy, Department of Excellence 2018-2022, School of Medicine and Surgery, University of Naples "Federico II", Via D. Montesano 49, I-80131 Naples, Italy
| | - Vincenzo Summa
- Department of Pharmacy, Department of Excellence 2018-2022, School of Medicine and Surgery, University of Naples "Federico II", Via D. Montesano 49, I-80131 Naples, Italy
| |
Collapse
|
9
|
Balmik AA, Chinnathambi S. Inter-relationship of Histone Deacetylase-6 with cytoskeletal organization and remodeling. Eur J Cell Biol 2022; 101:151202. [DOI: 10.1016/j.ejcb.2022.151202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 01/21/2022] [Accepted: 01/21/2022] [Indexed: 11/30/2022] Open
|
10
|
Balmik AA, Sonawane SK, Chinnathambi S. The extracellular HDAC6 ZnF UBP domain modulates the actin network and post-translational modifications of Tau. Cell Commun Signal 2021; 19:49. [PMID: 33933071 PMCID: PMC8088071 DOI: 10.1186/s12964-021-00736-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 03/29/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Microtubule-associated protein Tau undergoes aggregation in Alzheimer`s disease (AD) and a group of other related diseases collectively known as Tauopathies. In AD, Tau forms aggregates, which are deposited intracellularly as neurofibrillary tangles. Histone deacetylase-6 (HDAC6) plays an important role in aggresome formation, where it recruits polyubiquitinated aggregates to the motor protein dynein. METHODS Here, we have studied the effects of HDAC6 ZnF UBP on Tau phosphorylation, ApoE localization, GSK-3β regulation and cytoskeletal organization in neuronal cells by immunocytochemical analysis. This analysis reveals that the cell exposure to the UBP-type zinc finger domain of HDAC6 (HDAC6 ZnF UBP) can modulate Tau phosphorylation and actin cytoskeleton organization. RESULTS HDAC6 ZnF UBP treatment to cells did not affect their viability and resulted in enhanced neurite extension and formation of structures similar to podosomes, lamellipodia and podonuts suggesting the role of this domain in actin re-organization. Also, HDAC6 ZnF UBP treatment caused increase in nuclear localization of ApoE and tubulin localization in microtubule organizing centre (MTOC). Therefore, our studies suggest the regulatory role of this domain in different aspects of neurodegenerative diseases. Upon HDAC6 ZnF UBP treatment, inactive phosphorylated form of GSK-3β increases without any change in total GSK-3β level. CONCLUSIONS HDAC6 ZnF UBP was found to be involved in cytoskeletal re-organization by modulating actin dynamics and tubulin localization. Overall, our study suggests that ZnF domain of HDAC6 performs various regulatory functions apart from its classical function in aggresome formation in protein misfolding diseases. Video abstract.
Collapse
Affiliation(s)
- Abhishek Ankur Balmik
- Neurobiology Group, Division of Biochemical Sciences, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Shweta Kishor Sonawane
- Neurobiology Group, Division of Biochemical Sciences, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Subashchandrabose Chinnathambi
- Neurobiology Group, Division of Biochemical Sciences, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
| |
Collapse
|
11
|
Craig JM, Turner TH, Harrell JC, Clevenger CV. Prolactin Drives a Dynamic STAT5A/HDAC6/HMGN2 Cis-Regulatory Landscape Exploitable in ER+ Breast Cancer. Endocrinology 2021; 162:6137547. [PMID: 33589921 DOI: 10.1210/endocr/bqab036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Indexed: 12/31/2022]
Abstract
The hormone prolactin has been implicated in breast cancer pathogenesis and regulates chromatin engagement by the transcription factor, STAT5A. STAT5A is known to inducibly bind promoters and cis-regulatory elements genome-wide, though the mechanisms by which it exerts specificity and regulation of target gene expression remain enigmatic. We previously identified HDAC6 and HMGN2 as cofactors that facilitate prolactin-induced, STAT5A-mediated gene expression. Here, multicondition STAT5A, HDAC6, and HMGN2 chromatin immunoprecipitation and sequencing with parallel condition RNA-seq are utilized to reveal the cis-regulatory landscape and cofactor dynamics underlying prolactin-stimulated gene expression in breast cancer. We find that prolactin-regulated genes are significantly enriched for cis-regulatory elements bound by HDAC6 and HMGN2, and that inducible STAT5A binding at enhancers, rather than promoters, conveys specificity for prolactin-regulated genes. The selective HDAC6 inhibitor, ACY-241, blocks prolactin-induced STAT5A chromatin engagement at cis-regulatory elements as well as a significant proportion of prolactin-stimulated gene expression. We identify functional pathways known to contribute to the development and/or progression of breast cancer that are activated by prolactin and inhibited by ACY-241. Additionally, we find that the DNA sequences underlying shared STAT5A and HDAC6 binding sites at enhancers are differentially enriched for estrogen response elements (ESR1 and ESR2 motifs) relative to enhancers bound by STAT5A alone. Gene set enrichment analysis identifies significant overlap of ERα-regulated genes with genes regulated by prolactin, particularly prolactin-regulated genes with promoters or enhancers co-occupied by both STAT5A and HDAC6. Lastly, the therapeutic efficacy of ACY-241 is demonstrated in in vitro and in vivo breast cancer models, where we identify synergistic ACY-241 drug combinations and observe differential sensitivity of ER+ models relative to ER- models.
Collapse
Affiliation(s)
- Justin M Craig
- Department of Pathology, Virginia Commonwealth University, Richmond, VA, USA
- Wright Center for Clinical and Translational Research, Virginia Commonwealth University, Richmond, VA, USA
| | - Tia H Turner
- Department of Pathology, Virginia Commonwealth University, Richmond, VA, USA
- Wright Center for Clinical and Translational Research, Virginia Commonwealth University, Richmond, VA, USA
| | - J Chuck Harrell
- Department of Pathology, Virginia Commonwealth University, Richmond, VA, USA
- Wright Center for Clinical and Translational Research, Virginia Commonwealth University, Richmond, VA, USA
- Integrative Life Sciences Doctoral Program, Virginia Commonwealth University, Richmond, VA, USA
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, USA
| | - Charles V Clevenger
- Department of Pathology, Virginia Commonwealth University, Richmond, VA, USA
- Wright Center for Clinical and Translational Research, Virginia Commonwealth University, Richmond, VA, USA
- Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, USA
| |
Collapse
|
12
|
Magupalli VG, Negro R, Tian Y, Hauenstein AV, Di Caprio G, Skillern W, Deng Q, Orning P, Alam HB, Maliga Z, Sharif H, Hu JJ, Evavold CL, Kagan JC, Schmidt FI, Fitzgerald KA, Kirchhausen T, Li Y, Wu H. HDAC6 mediates an aggresome-like mechanism for NLRP3 and pyrin inflammasome activation. Science 2020; 369:369/6510/eaas8995. [PMID: 32943500 DOI: 10.1126/science.aas8995] [Citation(s) in RCA: 223] [Impact Index Per Article: 55.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 07/07/2019] [Accepted: 07/13/2020] [Indexed: 12/12/2022]
Abstract
Inflammasomes are supramolecular complexes that play key roles in immune surveillance. This is accomplished by the activation of inflammatory caspases, which leads to the proteolytic maturation of interleukin 1β (IL-1β) and pyroptosis. Here, we show that nucleotide-binding domain, leucine-rich repeat, and pyrin domain-containing protein 3 (NLRP3)- and pyrin-mediated inflammasome assembly, caspase activation, and IL-1β conversion occur at the microtubule-organizing center (MTOC). Furthermore, the dynein adapter histone deacetylase 6 (HDAC6) is indispensable for the microtubule transport and assembly of these inflammasomes both in vitro and in mice. Because HDAC6 can transport ubiquitinated pathological aggregates to the MTOC for aggresome formation and autophagosomal degradation, its role in NLRP3 and pyrin inflammasome activation also provides an inherent mechanism for the down-regulation of these inflammasomes by autophagy. This work suggests an unexpected parallel between the formation of physiological and pathological aggregates.
Collapse
Affiliation(s)
- Venkat Giri Magupalli
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA. .,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Roberto Negro
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA. .,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Yuzi Tian
- Department of Surgery, North Campus Research Complex, University of Michigan, Ann Arbor, MI 48109, USA.,Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Arthur V Hauenstein
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Giuseppe Di Caprio
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA.,Departments of Cell Biology and Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Wesley Skillern
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Qiufang Deng
- Department of Surgery, North Campus Research Complex, University of Michigan, Ann Arbor, MI 48109, USA.,Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Pontus Orning
- Program in Innate Immunity, Department of Medicine, Division of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, MA 01605, USA.,Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Hasan B Alam
- Department of Surgery, North Campus Research Complex, University of Michigan, Ann Arbor, MI 48109, USA
| | - Zoltan Maliga
- Laboratory of Systems Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Humayun Sharif
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Jun Jacob Hu
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| | - Charles L Evavold
- Harvard Medical School and Division of Gastroenterology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Jonathan C Kagan
- Harvard Medical School and Division of Gastroenterology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Florian I Schmidt
- Institute of Innate Immunity, Biomedical Center, University Hospitals, University of Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Katherine A Fitzgerald
- Program in Innate Immunity, Department of Medicine, Division of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, MA 01605, USA.,Centre of Molecular Inflammation Research, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Tom Kirchhausen
- Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA.,Departments of Cell Biology and Pediatrics, Harvard Medical School, Boston, MA 02115, USA
| | - Yongqing Li
- Department of Surgery, North Campus Research Complex, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Hao Wu
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA. .,Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA 02115, USA
| |
Collapse
|
13
|
Yeh C, Sun L, Lai C, Yeh T, Lin J, Tsay S, Chen C, Chen W, Chen C, Tsai R. Effect of ethanol extracts of Hericium�erinaceus mycelium on morphine‑induced microglial migration. Mol Med Rep 2019; 20:5279-5285. [DOI: 10.3892/mmr.2019.10745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 08/06/2019] [Indexed: 11/06/2022] Open
Affiliation(s)
- Chung‑Hsin Yeh
- College of Nursing and Health Sciences, Da‑Yeh University, Changhua 51591, Taiwan, R.O.C
| | - Li‑Wei Sun
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung 40201, Taiwan, R.O.C
| | - Chang‑Mei Lai
- Department of Emergency Medicine, Asia University Hospital, Taichung 41354, Taiwan, R.O.C
| | - Tzu‑Pei Yeh
- School of Nursing, China Medical University, Taichung 40402, Taiwan, R.O.C
| | - Jong‑Ni Lin
- College of Nursing and Health Sciences, Da‑Yeh University, Changhua 51591, Taiwan, R.O.C
| | - Shiow‑Luan Tsay
- College of Nursing and Health Sciences, Da‑Yeh University, Changhua 51591, Taiwan, R.O.C
| | - Chin‑Chu Chen
- Grape King Biotechnology Inc., Zhong‑Li 32097, Taiwan, R.O.C
| | - Wan‑Ping Chen
- Grape King Biotechnology Inc., Zhong‑Li 32097, Taiwan, R.O.C
| | - Chien‑Min Chen
- College of Nursing and Health Sciences, Da‑Yeh University, Changhua 51591, Taiwan, R.O.C
| | - Ru‑Yin Tsai
- College of Nursing and Health Sciences, Da‑Yeh University, Changhua 51591, Taiwan, R.O.C
| |
Collapse
|
14
|
Brindisi M, Saraswati AP, Brogi S, Gemma S, Butini S, Campiani G. Old but Gold: Tracking the New Guise of Histone Deacetylase 6 (HDAC6) Enzyme as a Biomarker and Therapeutic Target in Rare Diseases. J Med Chem 2019; 63:23-39. [PMID: 31415174 DOI: 10.1021/acs.jmedchem.9b00924] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Epigenetic regulation orchestrates many cellular processes and greatly influences key disease mechanisms. Histone deacetylase (HDAC) enzymes play a crucial role either as biomarkers or therapeutic targets owing to their involvement in specific pathophysiological pathways. Beyond their well-characterized role as histone modifiers, HDACs also interact with several nonhistone substrates and their increased expression has been highlighted in specific diseases. The HDAC6 isoform, due to its unique cytoplasmic localization, modulates the acetylation status of tubulin, HSP90, TGF-β, and peroxiredoxins. HDAC6 also exerts noncatalytic activities through its interaction with ubiquitin. Both catalytic and noncatalytic functions of HDACs are being actively studied in the field of specific rare disorders beyond the well-established role in carcinogenesis. This Perspective outlines the application of HDAC(6) inhibitors in rare diseases, such as Rett syndrome, inherited retinal disorders, idiopathic pulmonary fibrosis, and Charcot-Marie-Tooth disease, highlighting their therapeutic potential as innovative and targeted disease-modifying agents.
Collapse
Affiliation(s)
- Margherita Brindisi
- Department of Pharmacy, Department of Excellence 2018-2022 , University of Naples Federico II , Via D. Montesano 49 , I-80131 Naples , Italy
| | - A Prasanth Saraswati
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022 , University of Siena , via Aldo Moro 2 , 53100 , Siena , Italy
| | - Simone Brogi
- Department of Pharmacy , University of Pisa , via Bonanno 6 , 56126 , Pisa , Italy
| | - Sandra Gemma
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022 , University of Siena , via Aldo Moro 2 , 53100 , Siena , Italy
| | - Stefania Butini
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022 , University of Siena , via Aldo Moro 2 , 53100 , Siena , Italy
| | - Giuseppe Campiani
- Department of Biotechnology, Chemistry and Pharmacy, Department of Excellence 2018-2022 , University of Siena , via Aldo Moro 2 , 53100 , Siena , Italy
| |
Collapse
|
15
|
Depetter Y, Geurs S, De Vreese R, Goethals S, Vandoorn E, Laevens A, Steenbrugge J, Meyer E, de Tullio P, Bracke M, D'hooghe M, De Wever O. Selective pharmacological inhibitors of HDAC6 reveal biochemical activity but functional tolerance in cancer models. Int J Cancer 2019; 145:735-747. [DOI: 10.1002/ijc.32169] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/14/2018] [Accepted: 01/22/2019] [Indexed: 02/03/2023]
Affiliation(s)
- Yves Depetter
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering; Ghent University; Ghent Belgium
- Laboratory of Experimental Cancer Research, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences; Ghent University; Ghent Belgium
- Cancer Research Institute Ghent (CRIG); Ghent Belgium
| | - Silke Geurs
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering; Ghent University; Ghent Belgium
| | - Rob De Vreese
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering; Ghent University; Ghent Belgium
| | - Sophie Goethals
- Laboratory of Experimental Cancer Research, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences; Ghent University; Ghent Belgium
| | - Elien Vandoorn
- Laboratory of Experimental Cancer Research, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences; Ghent University; Ghent Belgium
| | - Alien Laevens
- Laboratory of Experimental Cancer Research, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences; Ghent University; Ghent Belgium
| | - Jonas Steenbrugge
- Laboratory of Biochemistry, Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine; Ghent University; Merelbeke Belgium
| | - Evelyne Meyer
- Cancer Research Institute Ghent (CRIG); Ghent Belgium
- Laboratory of Biochemistry, Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine; Ghent University; Merelbeke Belgium
| | - Pascal de Tullio
- Center for Interdisciplinary Research on Medicines (CIRM), Metabolomics Group; Université de Liège; Liège Belgium
| | - Marc Bracke
- Laboratory of Experimental Cancer Research, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences; Ghent University; Ghent Belgium
- Cancer Research Institute Ghent (CRIG); Ghent Belgium
| | - Matthias D'hooghe
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering; Ghent University; Ghent Belgium
| | - Olivier De Wever
- Laboratory of Experimental Cancer Research, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences; Ghent University; Ghent Belgium
- Cancer Research Institute Ghent (CRIG); Ghent Belgium
| |
Collapse
|
16
|
Shen J, Yin C, Jiang X, Wang X, Yang S, Song G. Aberrant histone modification and inflammatory cytokine production of peripheral CD4+ T cells in patients with oral lichen planus. J Oral Pathol Med 2018; 48:136-142. [PMID: 30329194 PMCID: PMC6588086 DOI: 10.1111/jop.12790] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/05/2018] [Accepted: 10/11/2018] [Indexed: 12/13/2022]
Abstract
Backgrounds To investigate alterations in histone modification and histone deacetylases (HDACs) in patients with oral lichen planus (OLP), and to evaluate correlations with inflammatory cytokine production. Methods Global histone H3/H4 acetylation and HDAC activity in CD4+ T cells from 23 patients with OLP and 10 healthy control subjects were examined using spectrophotometry. The mRNA levels of eight members of four classes of HDAC genes were measured by real‐time quantitative polymerase chain reaction. Forty cytokines involved in inflammation were examined with a cytokine array. The correlation between histone modification and cytokine production was analyzed. Results Global histone H3 hypo‐acetylation was observed in OLP patients. Patients with OLP had significantly higher HDACs activity,and higher HDAC6 and HDAC7 mRNA level compared with the controls. Of the 40 cytokines in the cytokine array, eight were significantly increased in OLP patients: interleukin (IL)‐4, IL‐8, IL‐1ra, tumor necrosis factor receptor II (TNFR II), macrophage inflammatory protein 1b (MIP‐1b), fibrosis‐associated tissue inhibitors of metalloproteinase 1 (TIMP)‐1, monocyte chemotactic protein 1 (MCP‐1), and eotaxin‐2. In the OLP group, the acetylation level of histone H3 was negatively correlated with IL‐4 and MCP‐1 production, and the expression of HDAC6 mRNA was positively correlated with MCP‐1 production. In the non‐erosive subgroup, acetylation of histone H3 was negatively correlated with IL‐4, IL‐16, and TIMP‐2 production. In the erosive OLP subgroup, the expression of HDAC7 mRNA was positively correlated with MIP‐1a production. Conclusion Aberrant histone modification of CD4+ T cells in peripheral blood could occur in OLP patients, and possibly affects inflammatory cytokine production.
Collapse
Affiliation(s)
- Jun Shen
- Department of Oral Medicine, Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Cao Yin
- Department of Oral Medicine, Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiao Jiang
- Department of Oral Medicine, Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xuan Wang
- Department of Oral Medicine, Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Shujuan Yang
- Department of Oral Pathology, Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Guangbao Song
- Department of Oral Medicine, Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong, China
| |
Collapse
|
17
|
The Therapeutic Strategy of HDAC6 Inhibitors in Lymphoproliferative Disease. Int J Mol Sci 2018; 19:ijms19082337. [PMID: 30096875 PMCID: PMC6121661 DOI: 10.3390/ijms19082337] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 08/02/2018] [Accepted: 08/03/2018] [Indexed: 12/15/2022] Open
Abstract
Histone deacetylases (HDACs) are master regulators of chromatin remodeling, acting as epigenetic regulators of gene expression. In the last decade, inhibition of HDACs has become a target for specific epigenetic modifications related to cancer development. Overexpression of HDAC has been observed in several hematologic malignancies. Therefore, the observation that HDACs might play a role in various hematologic malignancies has brought to the development of HDAC inhibitors as potential antitumor agents. Recently, the class IIb, HDAC6, has emerged as one potential selective HDACi. This isoenzyme represents an important pharmacological target for selective inhibition. Its selectivity may reduce the toxicity related to the off-target effects of pan-HDAC inhibitors. HDAC6 has also been studied in cancer especially for its ability to coordinate a variety of cellular processes that are important for cancer pathogenesis. HDAC6 has been reported to be overexpressed in lymphoid cells and its inhibition has demonstrated activity in preclinical and clinical study of lymphoproliferative disease. Various studies of HDAC6 inhibitors alone and in combination with other agents provide strong scientific rationale for the evaluation of these new agents in the clinical setting of hematological malignancies. In this review, we describe the HDACs, their inhibitors, and the recent advances of HDAC6 inhibitors, their mechanisms of action and role in lymphoproliferative disorders.
Collapse
|
18
|
|
19
|
Martín-Cófreces NB, Sánchez-Madrid F. Sailing to and Docking at the Immune Synapse: Role of Tubulin Dynamics and Molecular Motors. Front Immunol 2018; 9:1174. [PMID: 29910809 PMCID: PMC5992405 DOI: 10.3389/fimmu.2018.01174] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 05/11/2018] [Indexed: 12/17/2022] Open
Abstract
The different cytoskeleton systems and their connecting molecular motors move vesicles and intracellular organelles to shape cells. Polarized cells with specialized functions display an exquisite spatio-temporal regulation of both cytoskeletal and organelle arrangements that support their specific tasks. In particular, T cells rapidly change their shape and cellular function through the establishment of cell surface and intracellular polarity in response to a variety of cues. This review focuses on the contribution of the microtubule-based dynein/dynactin motor complex, the tubulin and actin cytoskeletons, and different organelles to the formation of the antigen-driven immune synapse.
Collapse
Affiliation(s)
- Noa Beatriz Martín-Cófreces
- Servicio de Inmunología, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Francisco Sánchez-Madrid
- Servicio de Inmunología, Hospital Universitario de la Princesa, Universidad Autónoma de Madrid, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| |
Collapse
|
20
|
Zhang J, He Z, Sen S, Wang F, Zhang Q, Sun Z. TCF-1 Inhibits IL-17 Gene Expression To Restrain Th17 Immunity in a Stage-Specific Manner. THE JOURNAL OF IMMUNOLOGY 2018; 200:3397-3406. [PMID: 29632143 DOI: 10.4049/jimmunol.1800193] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 03/14/2018] [Indexed: 12/22/2022]
Abstract
T cell factor 1 (TCF-1) is expressed in both developing and mature T cells and has been shown to restrain mature T cell-mediated Th17 responses by inhibiting IL-17 expression. However, it is not clear when TCF-1 is required in vivo to restrain the magnitude of peripheral Th17 responses and what the molecular mechanisms responsible for TCF-1-regulated IL-17 gene expression are. In this study, we showed that conditional deletion of TCF-1 at the early but not later CD4+CD8+ double-positive stage in mice enhanced Th17 differentiation and aggravated experimental autoimmune encephalomyelitis, which correlates with abnormally high IL-17 expression. Expression of TCF-1 in TCF-1-deficient thymocytes but not TCF-1-deficient Th17 cells inhibited IL-17 expression. TCF-1 binds to IL-17 promoter regions, and deletion of two TCF-1 binding sites relieves TCF-1-mediated inhibition of IL-17 promoter activity. Lastly, wild-type TCF-1, but not a TCF-1 mutant that has no intrinsic histone deacetylase activity, was able to inhibit IL-17 expression in TCF-1 deficient mouse thymocytes. Thus, our study demonstrates the requirement of TCF-1 in vivo at stages earlier than double-positive cells to restrain peripheral Th17 immunity by directly binding and inhibiting IL-17 promoter in its intrinsic histone deacetylase-dependent manner.
Collapse
Affiliation(s)
- Jing Zhang
- Department of Molecular Immunology, Beckman Research Institute of the City of Hope, Duarte, CA 91010.,Irell and Manella Graduate School of Biological Sciences at City of Hope, Duarte, CA 91010; and
| | - Zhiheng He
- Department of Molecular Immunology, Beckman Research Institute of the City of Hope, Duarte, CA 91010
| | - Subha Sen
- Department of Molecular Immunology, Beckman Research Institute of the City of Hope, Duarte, CA 91010
| | - Fei Wang
- Department of Molecular Immunology, Beckman Research Institute of the City of Hope, Duarte, CA 91010
| | - Qiang Zhang
- Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin Geriatrics Institute, Tianjin 300052, China
| | - Zuoming Sun
- Department of Molecular Immunology, Beckman Research Institute of the City of Hope, Duarte, CA 91010;
| |
Collapse
|
21
|
Loh JT, Su IH. Post-translational modification-regulated leukocyte adhesion and migration. Oncotarget 2018; 7:37347-37360. [PMID: 26993608 PMCID: PMC5095081 DOI: 10.18632/oncotarget.8135] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 02/28/2016] [Indexed: 12/30/2022] Open
Abstract
Leukocytes undergo frequent phenotypic changes and rapidly infiltrate peripheral and lymphoid tissues in order to carry out immune responses. The recruitment of circulating leukocytes into inflamed tissues depends on integrin-mediated tethering and rolling of these cells on the vascular endothelium, followed by transmigration into the tissues. This dynamic process of migration requires the coordination of large numbers of cytosolic and transmembrane proteins whose functional activities are typically regulated by post-translational modifications (PTMs). Our recent studies have shown that the lysine methyltransferase, Ezh2, critically regulates integrin signalling and governs the adhesion dynamics of leukocytes via direct methylation of talin, a key molecule that controls these processes by linking integrins to the actin cytoskeleton. In this review, we will discuss the various modes of leukocyte migration and examine how PTMs of cytoskeletal/adhesion associated proteins play fundamental roles in the dynamic regulation of leukocyte migration. Furthermore, we will discuss molecular details of the adhesion dynamics controlled by Ezh2-mediated talin methylation and the potential implications of this novel regulatory mechanism for leukocyte migration, immune responses, and pathogenic processes, such as allergic contact dermatitis and tumorigenesis.
Collapse
Affiliation(s)
- Jia Tong Loh
- School of Biological Sciences, College of Science, Nanyang Technological University, Republic of Singapore
| | - I-Hsin Su
- School of Biological Sciences, College of Science, Nanyang Technological University, Republic of Singapore
| |
Collapse
|
22
|
HDAC6 controls innate immune and autophagy responses to TLR-mediated signalling by the intracellular bacteria Listeria monocytogenes. PLoS Pathog 2017; 13:e1006799. [PMID: 29281743 PMCID: PMC5760107 DOI: 10.1371/journal.ppat.1006799] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 01/09/2018] [Accepted: 12/08/2017] [Indexed: 12/31/2022] Open
Abstract
Recent evidence on HDAC6 function underlines its role as a key protein in the innate immune response to viral infection. However, whether HDAC6 regulates innate immunity during bacterial infection remains unexplored. To assess the role of HDAC6 in the regulation of defence mechanisms against intracellular bacteria, we used the Listeria monocytogenes (Lm) infection model. Our data show that Hdac6-/- bone marrow-derived dendritic cells (BMDCs) have a higher bacterial load than Hdac6+/+ cells, correlating with weaker induction of IFN-related genes, pro-inflammatory cytokines and nitrite production after bacterial infection. Hdac6-/- BMDCs have a weakened phosphorylation of MAPK signalling in response to Lm infection, suggesting altered Toll-like receptor signalling (TLR). Compared with Hdac6+/+ counterparts, Hdac6-/- GM-CSF-derived and FLT3L-derived dendritic cells show weaker pro-inflammatory cytokine secretion in response to various TLR agonists. Moreover, HDAC6 associates with the TLR-adaptor molecule Myeloid differentiation primary response gene 88 (MyD88), and the absence of HDAC6 seems to diminish the NF-κB induction after TLR stimuli. Hdac6-/- mice display low serum levels of inflammatory cytokine IL-6 and correspondingly an increased survival to a systemic infection with Lm. The impaired bacterial clearance in the absence of HDAC6 appears to be caused by a defect in autophagy. Hence, Hdac6-/- BMDCs accumulate higher levels of the autophagy marker p62 and show defective phagosome-lysosome fusion. These data underline the important function of HDAC6 in dendritic cells not only in bacterial autophagy, but also in the proper activation of TLR signalling. These results thus demonstrate an important regulatory role for HDAC6 in the innate immune response to intracellular bacterial infection.
Collapse
|
23
|
Abstract
Histone deacetylase 6 (HDAC6) is a member of class IIb HDAC family. HDAC6 exists predominantly in the cytoplasm and deacetylates mainly non-histone proteins in the cytoplasm. Via its deacetylase and ubiquitin binding domains, HDAC6 regulates microtubules, cytoskeleton, intracellular trafficking, and cellular responses to stress. HDAC6 plays a central role in physiology and pathobiology in various organs and tissues. Herein we describe the methods for analysis of expression and function of HDAC6 in diverse physiological and pathological contexts.
Collapse
Affiliation(s)
- Miao Li
- Department of Pathogen Biology, College of Basic Medical Sciences, China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Yan Zhuang
- Department of Medicine, Tulane University School of Medicine, New Orleans, LA, USA
| | - Bin Shan
- College of Medical Sciences, Washington State University at Spokane, 412 E Spokane Falls Blvd., Spokane, WA, 99202, USA.
| |
Collapse
|
24
|
Bustos-Morán E, Blas-Rus N, Martín-Cófreces NB, Sánchez-Madrid F. Orchestrating Lymphocyte Polarity in Cognate Immune Cell-Cell Interactions. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2016; 327:195-261. [PMID: 27692176 DOI: 10.1016/bs.ircmb.2016.06.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The immune synapse (IS) is a specialized structure established between different immune cells that fulfills several functions, including a role as a communication bridge. This intimate contact between a T cell and an antigen-presenting cell promotes the proliferation and differentiation of lymphocytes involved in the contact. T-cell activation requires the specific triggering of the T-cell receptor (TCR), which promotes the activation of different signaling pathways inducing the polarization of the T cell. During this process, different adhesion and signaling receptors reorganize at specialized membrane domains, concomitantly to the polarization of the tubulin and actin cytoskeletons, forming stable polarization platforms. The centrosome also moves toward the IS, driving the movement of different organelles, such as the biosynthetic, secretory, degrading machinery, and mitochondria, to sustain T-cell activation. A proper orchestration of all these events is essential for T-cell effector functions and the accomplishment of a complete immune response.
Collapse
Affiliation(s)
- Eugenio Bustos-Morán
- Vascular Pathophysiology Area, Spanish National Center of Cardiovascular Research (CNIC), Madrid, Spain
| | - Noelia Blas-Rus
- Department of Immunology, La Princesa Hospital, Autonomus University of Madrid (UAM), Health Research Institute of Princesa Hospital (ISS-IP), Madrid, Spain
| | - Noa Beatriz Martín-Cófreces
- Vascular Pathophysiology Area, Spanish National Center of Cardiovascular Research (CNIC), Madrid, Spain.,Department of Immunology, La Princesa Hospital, Autonomus University of Madrid (UAM), Health Research Institute of Princesa Hospital (ISS-IP), Madrid, Spain
| | - Francisco Sánchez-Madrid
- Vascular Pathophysiology Area, Spanish National Center of Cardiovascular Research (CNIC), Madrid, Spain.,Department of Immunology, La Princesa Hospital, Autonomus University of Madrid (UAM), Health Research Institute of Princesa Hospital (ISS-IP), Madrid, Spain
| |
Collapse
|
25
|
Mishra A, La Perle K, Kwiatkowski S, Sullivan LA, Sams GH, Johns J, Curphey DP, Wen J, McConnell K, Qi J, Wong H, Russo G, Zhang J, Marcucci G, Bradner JE, Porcu P, Caligiuri MA. Mechanism, Consequences, and Therapeutic Targeting of Abnormal IL15 Signaling in Cutaneous T-cell Lymphoma. Cancer Discov 2016; 6:986-1005. [PMID: 27422033 DOI: 10.1158/2159-8290.cd-15-1297] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 07/11/2016] [Indexed: 12/12/2022]
Abstract
UNLABELLED Cutaneous T-cell lymphoma (CTCL) is the most common type of primary cutaneous lymphoma. Here, we report that patients with CTCL show increased IL15 in a clinical stage-dependent manner. Mechanistically, we show that ZEB1 is a transcriptional repressor of IL15 in T cells and that hypermethylation of the ZEB1 binding region within the IL15 promoter, as seen in patients with CTCL, prevents ZEB1 binding and causes increased transcription of IL15 Using a transgenic mouse model of IL15, we provide evidence that overexpression of IL15 induces a spontaneous CTCL that mimics the human neoplasm. Excessive autocrine production of IL15 in T cells inhibits an HDAC1-mediated negative autoregulatory loop, resulting in the upregulation of HDAC1 and HDAC6 and transcriptional induction of the onco-miR-21. Interruption of IL15 downstream signaling with isotype-specific HDAC inhibitors halts (HDAC1) or significantly delays (HDAC6) the progression of CTCL in vivo and provides preclinical evidence supporting a hierarchical model of oncogenic signaling in CTCL. SIGNIFICANCE To date, CTCL pathogenesis remains unknown, and there are no curative therapies. Our findings not only demonstrate a critical role for IL15-mediated inflammation in cutaneous T-cell lymphomagenesis, but also uncover a new oncogenic regulatory loop in CTCL involving IL15, HDAC1, HDAC6, and miR-21 that shows differential sensitivity to isotype-specific HDAC inhibitors. Cancer Discov; 6(9); 986-1005. ©2016 AACR.This article is highlighted in the In This Issue feature, p. 932.
Collapse
Affiliation(s)
- Anjali Mishra
- Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio. Comprehensive Cancer Center, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio.
| | - Krista La Perle
- Comprehensive Cancer Center, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio. Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio
| | - Sonya Kwiatkowski
- Comprehensive Cancer Center, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio
| | - Laura A Sullivan
- Comprehensive Cancer Center, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio
| | - Gregory H Sams
- Comprehensive Cancer Center, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio
| | - Jessica Johns
- Comprehensive Cancer Center, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio
| | - Douglas P Curphey
- Comprehensive Cancer Center, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio
| | - Jing Wen
- Comprehensive Cancer Center, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio
| | - Kathleen McConnell
- Comprehensive Cancer Center, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio
| | - Jun Qi
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Henry Wong
- Division of Dermatology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio. Comprehensive Cancer Center, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio
| | - Giandomenico Russo
- Istituto Dermopatico dell'Immacolata-Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
| | - Jianying Zhang
- Centers for Biostatistics, The Ohio State University, Columbus, Ohio
| | - Guido Marcucci
- Division of Hematopoietic Stem Cell and Leukemia Research, Beckman Research Institute, Norbert Gehr and Family Leukemia Center, City of Hope Medical Center, Duarte, California
| | - James E Bradner
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
| | - Pierluigi Porcu
- Comprehensive Cancer Center, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio. Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio.
| | - Michael A Caligiuri
- Comprehensive Cancer Center, James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, Ohio. Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio.
| |
Collapse
|
26
|
Xing S, Li F, Zeng Z, Zhao Y, Yu S, Shan Q, Li Y, Phillips FC, Maina PK, Qi HH, Liu C, Zhu J, Pope RM, Musselman CA, Zeng C, Peng W, Xue HH. Tcf1 and Lef1 transcription factors establish CD8(+) T cell identity through intrinsic HDAC activity. Nat Immunol 2016; 17:695-703. [PMID: 27111144 PMCID: PMC4873337 DOI: 10.1038/ni.3456] [Citation(s) in RCA: 156] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 03/30/2016] [Indexed: 02/06/2023]
Abstract
The CD4+ and CD8+ T cell dichotomy is essential for effective cellular immunity. How the individual T cell identity is established remains poorly understood. Here we show that the high mobility group (HMG) transcription factors Tcf1 and Lef1 are essential for repressing CD4+ lineage-associated genes including Cd4, Foxp3 and Rorc in CD8+ T cells. Tcf1- and Lef1-deficient CD8+ T cells exhibit histone hyperacetylation, which is ascribed to an unexpected intrinsic histone deacetylase (HDAC) activity in Tcf1 and Lef1. Mutating five conserved amino acids in the Tcf1 HDAC domain diminishes the HDAC activity and the ability to suppress CD4+ lineage genes in CD8+ T cells. These findings reveal that sequence-specific transcription factors can utilize intrinsic HDAC activity to guard cell identity by repressing lineage-inappropriate genes.
Collapse
Affiliation(s)
- Shaojun Xing
- Department of Microbiology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Fengyin Li
- Department of Microbiology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Zhouhao Zeng
- Department of Physics, The George Washington University, Washington, DC, USA
| | - Yunjie Zhao
- Department of Physics, The George Washington University, Washington, DC, USA
| | - Shuyang Yu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Qiang Shan
- Department of Microbiology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Yalan Li
- Proteomics Facility, University of Iowa, Iowa City, Iowa, USA
| | - Farrah C Phillips
- Department of Microbiology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.,Interdisciplinary Immunology Graduate Program, University of Iowa, Iowa City, Iowa, USA
| | - Peterson K Maina
- Department of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Hank H Qi
- Department of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Chengyu Liu
- Transgenic Core Facility, NHLBI, National Institutes of Health, Bethesda, Maryland, USA
| | - Jun Zhu
- Systems Biology Center, NHLBI, National Institutes of Health, Bethesda, Maryland, USA
| | - R Marshall Pope
- Proteomics Facility, University of Iowa, Iowa City, Iowa, USA
| | - Catherine A Musselman
- Department of Biochemistry, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Chen Zeng
- Department of Physics, The George Washington University, Washington, DC, USA
| | - Weiqun Peng
- Department of Physics, The George Washington University, Washington, DC, USA
| | - Hai-Hui Xue
- Department of Microbiology, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA.,Interdisciplinary Immunology Graduate Program, University of Iowa, Iowa City, Iowa, USA
| |
Collapse
|
27
|
Núñez-Andrade N, Iborra S, Trullo A, Moreno-Gonzalo O, Calvo E, Catalán E, Menasche G, Sancho D, Vázquez J, Yao TP, Martín-Cófreces NB, Sánchez-Madrid F. HDAC6 regulates the dynamics of lytic granules in cytotoxic T lymphocytes. J Cell Sci 2016; 129:1305-1311. [PMID: 26869226 DOI: 10.1242/jcs.180885] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 02/08/2016] [Indexed: 12/20/2022] Open
Abstract
HDAC6 is a tubulin deacetylase involved in many cellular functions related to cytoskeleton dynamics, including cell migration and autophagy. In addition, HDAC6 affects antigen-dependent CD4(+)T cell activation. In this study, we show that HDAC6 contributes to the cytotoxic function of CD8(+)T cells. Immunization studies revealed defective cytotoxic activity in vivo in the absence of HDAC6. Adoptive transfer of wild-type or Hdac6(-/-)CD8(+)T cells to Rag1(-/-)mice demonstrated specific impairment in CD8(+)T cell responses against vaccinia infection. Mechanistically, HDAC6-deficient cytotoxic T lymphocytes (CTLs) showed defective in vitro cytolytic activity related to altered dynamics of lytic granules, inhibited kinesin-1-dynactin-mediated terminal transport of lytic granules to the immune synapse and deficient exocytosis, but not to target cell recognition, T cell receptor (TCR) activation or interferon (IFN)γ production. Our results establish HDAC6 as an effector of the immune cytotoxic response that acts by affecting the dynamics, transport and secretion of lytic granules by CTLs.
Collapse
Affiliation(s)
- Norman Núñez-Andrade
- Servicio de Inmunología, Hospital Universitario de la Princesa, UAM, IIS-IP. Madrid, 28006 Spain.,Laboratory of Intercellular communication, Fundación CNIC, Madrid, 28029 Spain
| | - Salvador Iborra
- Immunobiology of inflammation, Fundación CNIC, Madrid, 28029 Spain
| | - Antonio Trullo
- Microscopy and Dynamic Imaging Unit, Fundación CNIC, Madrid, 28029 Spain.,Spettroscopia biomedica in fluorescenza dinamica, Center of Experimental Imaging, Ospedale San Raffaele, Milan, 20132, Italy
| | - Olga Moreno-Gonzalo
- Servicio de Inmunología, Hospital Universitario de la Princesa, UAM, IIS-IP. Madrid, 28006 Spain.,Laboratory of Intercellular communication, Fundación CNIC, Madrid, 28029 Spain
| | | | - Elena Catalán
- Dept. Biochemistry and Molecular and Cell Biology, Universidad de Zaragoza, 500009, Spain
| | - Gaël Menasche
- Laboratory of Normal and Pathological Homeostasis of the Immune System, INSERM Unité Mixte de Recherche 1163, Paris France
| | - David Sancho
- Immunobiology of inflammation, Fundación CNIC, Madrid, 28029 Spain
| | | | - Tso-Pang Yao
- Departments of Pharmacology and Cancer Biology Duke University, Medical Center, Durham, North Carolina 27710, U.S
| | - Noa Beatriz Martín-Cófreces
- Servicio de Inmunología, Hospital Universitario de la Princesa, UAM, IIS-IP. Madrid, 28006 Spain.,Laboratory of Intercellular communication, Fundación CNIC, Madrid, 28029 Spain
| | - Francisco Sánchez-Madrid
- Servicio de Inmunología, Hospital Universitario de la Princesa, UAM, IIS-IP. Madrid, 28006 Spain.,Laboratory of Intercellular communication, Fundación CNIC, Madrid, 28029 Spain
| |
Collapse
|
28
|
Gaisina IN, Tueckmantel W, Ugolkov A, Shen S, Hoffen J, Dubrovskyi O, Mazar A, Schoon RA, Billadeau D, Kozikowski AP. Identification of HDAC6-Selective Inhibitors of Low Cancer Cell Cytotoxicity. ChemMedChem 2015; 11:81-92. [PMID: 26592932 DOI: 10.1002/cmdc.201500456] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Indexed: 11/07/2022]
Abstract
The histone deacetylases (HDACs) occur in 11 different isoforms, and these enzymes regulate the activity of a large number of proteins involved in cancer initiation and progression. The discovery of isoform-selective HDAC inhibitors (HDACIs) is desirable, as it is likely that such compounds would avoid some of the undesirable side effects found with the first-generation inhibitors. A series of HDACIs previously reported by us were found to display some selectivity for HDAC6 and to induce cell-cycle arrest and apoptosis in pancreatic cancer cells. In the present work, we show that structural modification of these isoxazole-based inhibitors leads to high potency and selectivity for HDAC6 over HDAC1-3 and HDAC10, while unexpectedly abolishing their ability to block cell growth. Three inhibitors with lower HDAC6 selectivity inhibit the growth of cell lines BxPC3 and L3.6pl, and they only induce apoptosis in L3.6pl cells. We conclude that HDAC6 inhibition alone is insufficient for disruption of cell growth, and that some degree of class 1 HDAC inhibition is required. Moreover, the highly selective HDAC6Is reported herein that are weakly cytotoxic may find use in cancer immune system reactivation.
Collapse
Affiliation(s)
- Irina N Gaisina
- Drug Discovery Program, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60612, USA
- Psychogenics Inc., Tarrytown, NY, 10591, USA
| | | | - Andrey Ugolkov
- Center for Developmental Therapeutics, Feinberg School of Medicine, Northwestern University, Evanston, IL, 60208, USA
| | - Sida Shen
- Drug Discovery Program, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Jessica Hoffen
- Center for Developmental Therapeutics, Feinberg School of Medicine, Northwestern University, Evanston, IL, 60208, USA
| | - Oleksii Dubrovskyi
- Center for Developmental Therapeutics, Feinberg School of Medicine, Northwestern University, Evanston, IL, 60208, USA
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Evanston, IL, 60208, USA
| | - Andrew Mazar
- Center for Developmental Therapeutics, Feinberg School of Medicine, Northwestern University, Evanston, IL, 60208, USA
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Evanston, IL, 60208, USA
| | - Renee A Schoon
- Department of Immunology and Division of Oncology Research, College of Medicine, Mayo Clinic, 13-42 Guggenheim, Rochester, MN, 55905, USA
| | - Daniel Billadeau
- Department of Immunology and Division of Oncology Research, College of Medicine, Mayo Clinic, 13-42 Guggenheim, Rochester, MN, 55905, USA
| | - Alan P Kozikowski
- Drug Discovery Program, Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, 60612, USA.
| |
Collapse
|
29
|
Fang TJ, Lin YZ, Liu CC, Lin CH, Li RN, Wu CC, Ou TT, Tsai WC, Yen JH. Methylation and gene expression of histone deacetylases 6 in systemic lupus erythematosus. Int J Rheum Dis 2015; 19:968-973. [PMID: 26461065 DOI: 10.1111/1756-185x.12783] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AIM The purpose of this study is to investigate the role of methylation in the histone deacetylases 6 (HDAC6) promoter and HDAC6 messenger RNA (mRNA) expression in the pathogenesis of systemic lupus erythematosus (SLE). METHOD Direct bisulfite-polymerase chain reaction (PCR) sequencing was performed to detect the HDAC6 promoter methylation in 33 patients with SLE and 35 healthy controls. The HDAC6 mRNA expression was measured in 93 SLE patients and 84 healthy controls by using the method of quantitative real-time PCR. RESULTS This study demonstrated that the methylation rates at HDAC6-680, -660 and -658 were significantly increased in the SLE patients compared with healthy controls (P = 0.041, 0.034 and 0.029, respectively). The SLE patients also had lower HDAC6 mRNA expression than the controls (P = 0.031). However, there was no significant difference in HDAC6 mRNA expression between patients with active and inactive SLE. CONCLUSION The SLE patients had higher methylation in the HDAC6 promoter and lower HDAC6 mRNA expression than the controls. These changes may be related to the susceptibility of SLE. However, they are not associated with the disease activity of SLE.
Collapse
Affiliation(s)
- Tzu-Jung Fang
- Division of Geriatrics and Gerontology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yuan-Zhao Lin
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ching-Ching Liu
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chia-Hui Lin
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ruei-Nian Li
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Cheng-Chin Wu
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Tsan-Teng Ou
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Wen-Chan Tsai
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Jeng-Hsien Yen
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan. .,Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Institute of Biomedical Science, National Sun Yat-sen University, Kaohsiung, Taiwan.
| |
Collapse
|
30
|
Haery L, Thompson RC, Gilmore TD. Histone acetyltransferases and histone deacetylases in B- and T-cell development, physiology and malignancy. Genes Cancer 2015; 6:184-213. [PMID: 26124919 PMCID: PMC4482241 DOI: 10.18632/genesandcancer.65] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 05/12/2015] [Indexed: 12/31/2022] Open
Abstract
The development of B and T cells from hematopoietic precursors and the regulation of the functions of these immune cells are complex processes that involve highly regulated signaling pathways and transcriptional control. The signaling pathways and gene expression patterns that give rise to these developmental processes are coordinated, in part, by two opposing classes of broad-based enzymatic regulators: histone acetyltransferases (HATs) and histone deacetylases (HDACs). HATs and HDACs can modulate gene transcription by altering histone acetylation to modify chromatin structure, and by regulating the activity of non-histone substrates, including an array of immune-cell transcription factors. In addition to their role in normal B and T cells, dysregulation of HAT and HDAC activity is associated with a variety of B- and T-cell malignancies. In this review, we describe the roles of HATs and HDACs in normal B- and T-cell physiology, describe mutations and dysregulation of HATs and HDACs that are implicated lymphoma and leukemia, and discuss HAT and HDAC inhibitors that have been explored as treatment options for leukemias and lymphomas.
Collapse
Affiliation(s)
- Leila Haery
- Department of Biology, Boston University, Boston, MA, USA
| | | | | |
Collapse
|
31
|
Tsai RY, Cheng YC, Wong CS. (+)-Naloxone inhibits morphine-induced chemotaxis via prevention of heat shock protein 90 cleavage in microglia. J Formos Med Assoc 2015; 114:446-55. [PMID: 25649471 DOI: 10.1016/j.jfma.2014.12.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 10/30/2014] [Accepted: 12/26/2014] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND/PURPOSE Microglia have a crucial role in maintaining neuronal homeostasis in the central nervous system. Immune factors released from microglia have important roles in nociceptive signal transduction. Activation of microglia seems to be a shared mechanism in pathological pain and morphine tolerance because pharmacological attenuation of microglia activation provides satisfactory management in both situations. METHODS In the present study, we investigated the effect of 1nM (+)-naloxone, which is not an opioid receptor antagonist, on morphine-induced activation of microglia EOC13.31 cells. RESULTS Our results showed that 1μM morphine enhanced microglia activation and migration, decreased α-tubulin acetylation, and induced heat shock protein 90 (HSP90) fragmentation and histone deacetylase 6 (HDAC6) expression. Morphine-induced α-tubulin deacetylation and HSP90 fragmentation were HDAC6-dependent. Pretreatment with (+)-naloxone (1nM) inhibited morphine-evoked microglia activation and chemotaxis and prevented α-tubulin deacetylation and HSP90 fragmentation by inhibiting HDAC6 expression. CONCLUSION Based on the findings of the present study, we suggest that (+)-naloxone inhibits morphine-induced microglia activation by regulating HDAC6-dependent α-tubulin deacetylation and HSP90 fragmentation.
Collapse
Affiliation(s)
- Ru-Yin Tsai
- Department of Nursing, Da-Yeh University, Changhua, Taiwan; Department of Anesthesiology, Cathay General Hospital, Taipei, Taiwan
| | - Yu-Che Cheng
- Department of Medical Research, Cathay General Hospital, Taipei, Taiwan
| | - Chih-Shung Wong
- Department of Anesthesiology, Cathay General Hospital, Taipei, Taiwan; School of Medicine, Fu-Jen Catholic University, New Taipei, Taiwan; Graduate Institute of Medical Science, National Defense Medical Center, Taipei, Taiwan.
| |
Collapse
|
32
|
Histone deacetylases and their inhibitors in cancer, neurological diseases and immune disorders. Nat Rev Drug Discov 2014; 13:673-91. [PMID: 25131830 DOI: 10.1038/nrd4360] [Citation(s) in RCA: 1157] [Impact Index Per Article: 115.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Epigenetic aberrations, which are recognized as key drivers of several human diseases, are often caused by genetic defects that result in functional deregulation of epigenetic proteins, their altered expression and/or their atypical recruitment to certain gene promoters. Importantly, epigenetic changes are reversible, and epigenetic enzymes and regulatory proteins can be targeted using small molecules. This Review discusses the role of altered expression and/or function of one class of epigenetic regulators--histone deacetylases (HDACs)--and their role in cancer, neurological diseases and immune disorders. We highlight the development of small-molecule HDAC inhibitors and their use in the laboratory, in preclinical models and in the clinic.
Collapse
|
33
|
Deakin NO, Turner CE. Paxillin inhibits HDAC6 to regulate microtubule acetylation, Golgi structure, and polarized migration. ACTA ACUST UNITED AC 2014; 206:395-413. [PMID: 25070956 PMCID: PMC4121979 DOI: 10.1083/jcb.201403039] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Polarized cell migration is essential for normal organism development and is also a critical component of cancer cell invasion and disease progression. Directional cell motility requires the coordination of dynamic cell-extracellular matrix interactions as well as repositioning of the Golgi apparatus, both of which can be controlled by the microtubule (MT) cytoskeleton. In this paper, we have identified a new and conserved role for the focal adhesion scaffold protein paxillin in regulating the posttranslational modification of the MT cytoskeleton through an inhibitory interaction with the α-tubulin deacetylase HDAC6. We also determined that through HDAC6-dependent regulation of the MT cytoskeleton, paxillin regulates both Golgi organelle integrity and polarized cell invasion and migration in both three-dimensional and two-dimensional matrix microenvironments. Importantly, these data reveal a fundamental role for paxillin in coordinating MT acetylation-dependent cell polarization and migration in both normal and transformed cells.
Collapse
Affiliation(s)
- Nicholas O Deakin
- Department of Cell and Developmental Biology, State University of New York Upstate Medical University, Syracuse, NY 13210
| | - Christopher E Turner
- Department of Cell and Developmental Biology, State University of New York Upstate Medical University, Syracuse, NY 13210
| |
Collapse
|
34
|
Grandperret V, Nicolas-Francès V, Wendehenne D, Bourque S. Type-II histone deacetylases: elusive plant nuclear signal transducers. PLANT, CELL & ENVIRONMENT 2014; 37:1259-69. [PMID: 24236403 DOI: 10.1111/pce.12236] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 11/04/2013] [Accepted: 11/10/2013] [Indexed: 05/20/2023]
Abstract
Since the beginning of the 21st century, numerous studies have concluded that the plant cell nucleus is one of the cellular compartments that define the specificity of the cellular response to an external stimulus or to a specific developmental stage. To that purpose, the nucleus contains all the enzymatic machinery required to carry out a wide variety of nuclear protein post-translational modifications (PTMs), which play an important role in signal transduction pathways leading to the modulation of specific sets of genes. PTMs include protein (de)acetylation which is controlled by the antagonistic activities of histone acetyltransferases (HATs) and histone deacetylases (HDACs). Regarding protein deacetylation, plants are of particular interest: in addition to the RPD3-HDA1 and Sir2 HDAC families that they share with other eukaryotic organisms, plants have developed a specific family called type-II HDACs (HD2s). Interestingly, these HD2s are well conserved in plants and control fundamental biological processes such as seed germination, flowering or the response to pathogens. The aim of this review was to summarize current knowledge regarding this fascinating, but still poorly understood nuclear protein family.
Collapse
Affiliation(s)
- Vincent Grandperret
- Pôle Mécanisme et Gestion des Interactions Plantes-microorganismes - ERL CNRS 6300, Université de Bourgogne, UMR 1347 Agroécologie, 17 rue Sully, BP 86510, Dijon cedex, 21065, France
| | | | | | | |
Collapse
|
35
|
Dido3-dependent HDAC6 targeting controls cilium size. Nat Commun 2014; 5:3500. [PMID: 24667272 PMCID: PMC3973121 DOI: 10.1038/ncomms4500] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 02/24/2014] [Indexed: 01/12/2023] Open
Abstract
Primary cilia are involved in a variety of physiological processes such as sensing of the environment, cell growth and development. Numerous developmental disorders and pathologies arise from defects in these organelles. Multiple proteins that promote formation and disassembly of the primary cilium have been identified, but little is known about the mechanisms that control steady-state cilium size. Here, we show that death inducer obliterator (Dido3)-dependent targeting of histone deacetylase 6 (HDAC6) is a key determinant of cilium size in growth-arrested cells. The amount of either protein negatively correlates with cilium size. Dido3 availability at the centrosome governs ciliary HDAC6 levels, and redistribution of the two proteins controls tubulin acetylation. In turn, basal body localization of Dido3 and HDAC6 depends on the actin network, previously shown to limit cilium size independent of the cell cycle. These results show that not only kinase-dependent activation of a deacetylase but also its subcellular distribution controls substrate selection.
Collapse
|
36
|
Rosik L, Niegisch G, Fischer U, Jung M, Schulz WA, Hoffmann MJ. Limited efficacy of specific HDAC6 inhibition in urothelial cancer cells. Cancer Biol Ther 2014; 15:742-57. [PMID: 24618845 DOI: 10.4161/cbt.28469] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Epigenetic modifiers such as histone deacetylases (HDACs) have come into focus as novel drug targets for cancer therapy due to their functional role in tumor progression. Since common pan-HDAC inhibitors have adverse side effects and minor anti-cancer activity against solid tumors, enzyme-specific inhibitors were developed. HDAC6 is especially well-suited for specific inhibition due to its unique domain structure and mode of action and has been suggested to provide an exceptionally suitable target for cancer therapy. However, expression and function of HDACs have been insufficiently studied in urothelial cancers (UC), a disease urgently requiring new therapeutic approaches. The present study sought to evaluate HDAC6 as a target for treatment of urothelial cancers with enzyme-specific inhibitors. We observed moderate HDAC6 overexpression in urothelial cancer tissues and a broad range of expression in urothelial cancer cell lines. In the cell lines Tubacin was the most potent inhibitor, compared with Tubastatin and ST-80, but still active only at high micromolar concentrations. HDAC6 expression levels correlated poorly with sensitivity to enzyme inhibition. Combined treatments with heat shock, HSP90 inhibition by 17-AAG, proteasome inhibition by bortezomib, or DNA-damaging agents did not result in significant synergistic effects. Experiments with siRNA-mediated knockdown further underlined that urothelial cancer cells do not critically depend on HDAC6 expression for survival.
Collapse
Affiliation(s)
- Lorena Rosik
- Department of Urology; Heinrich-Heine-University; Medical Faculty; Duesseldorf, Germany
| | - Günter Niegisch
- Department of Urology; Heinrich-Heine-University; Medical Faculty; Duesseldorf, Germany
| | - Ute Fischer
- Department of Pediatric Oncology, Hematology and Clinical Immunology; Heinrich-Heine-University; Medical Faculty; Duesseldorf, Germany
| | - Manfred Jung
- Institute of Pharmaceutical Sciences; University of Freiburg; Freiburg, Germany; German Cancer Consortium (DKTK); Heidelberg, Germany; German Cancer Research Center (DKFZ); Heidelberg, Germany
| | | | | |
Collapse
|
37
|
Li Y, Shin D, Kwon SH. Histone deacetylase 6 plays a role as a distinct regulator of diverse cellular processes. FEBS J 2012. [PMID: 23181831 DOI: 10.1111/febs.12079] [Citation(s) in RCA: 166] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Histone deacetylase (HDAC) 6 is the best-characterized class IIb deacetylase that regulates many important biological processes via the formation of complexes with its partner proteins. HDAC6 is important both for cytoplasmic and nuclear functions. Unlike other deacetylases, HDAC6 has unique substrate specificity for nonhistone proteins. Such diverse functions of HDAC6 suggest that it serves a potential therapeutic target for the treatment of a wide range of diseases. This therapeutic interest in HDAC6 stems from the observation that HDAC6 may be overexpressed or deregulated in various cancers, neurodegenerative diseases and inflammatory disorders. Despite extensive efforts, however, very few HDAC6-selective inhibitors have been identified and the precise structural determinants remain undefined. Future efforts aiming to better define the structure and function of HDAC6 should provide the basis for the discovery of novel effective inhibitors. In this review, we focus on recent studies that highlight the importance of HDAC6-mediated biological processes, disease mechanisms and HDAC6-selective inhibitors.
Collapse
Affiliation(s)
- Yingxiu Li
- College of Pharmacy, Yonsei Institute of Pharmaceutical Sciences, Yonsei University, Incheon, Korea
| | | | | |
Collapse
|
38
|
Lafarga V, Mayor F, Penela P. The interplay between G protein-coupled receptor kinase 2 (GRK2) and histone deacetylase 6 (HDAC6) at the crossroads of epithelial cell motility. Cell Adh Migr 2012; 6:495-501. [PMID: 23076141 DOI: 10.4161/cam.21585] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
G protein-coupled receptor kinase 2 (GRK2) is emerging as a key integrative node in cell migration control. In addition to its canonical role in the desensitization of G protein-coupled receptors involved in chemotaxis, novel recently identified GRK2 substrates and interacting partners appear to mediate the GRK2-dependent modulation of diverse molecular processes involved in motility, such as gradient sensing, cell polarity or cytoskeletal reorganization. We have recently identified an interaction between GRK2 and histone deacetylase 6 (HDAC6), a major cytoplasmic α-tubulin deacetylase involved in cell motility and adhesion. GRK2 dynamically associates with and phosphorylates HDAC6 to stimulate its α-tubulin deacetylase activity at specific cellular localizations such as the leading edge of migrating cells, thus promoting local tubulin deacetylation and enhanced motility. This GRK2-HDAC6 functional interaction may have important implications in pathological contexts related to aberrant epithelial cell migration.
Collapse
Affiliation(s)
- Vanesa Lafarga
- Departamento de Biología Molecular and Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Cientificas, Universidad Autónoma de Madrid, Madrid, Spain
| | | | | |
Collapse
|
39
|
Kamemura K, Ogawa M, Ohkubo S, Ohtsuka Y, Shitara Y, Komiya T, Maeda S, Ito A, Yoshida M. Depression of mitochondrial metabolism by downregulation of cytoplasmic deacetylase, HDAC6. FEBS Lett 2012; 586:1379-83. [PMID: 22504143 DOI: 10.1016/j.febslet.2012.03.060] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 03/07/2012] [Accepted: 03/28/2012] [Indexed: 12/22/2022]
Abstract
Mitochondria perform multiple functions critical to the maintenance of cellular homeostasis. Here we report that the downregulation of histone deacetylase 6 (HDAC6) causes a reduction in the net activity of mitochondrial enzymes, including respiratory complex II and citrate synthase. HDAC6 deacetylase and ubiquitin-binding activities were both required for recovery of reduced mitochondrial metabolic activity due to the loss of HDAC6. Hsp90, a substrate of HDAC6, localizes to mitochondria and partly mediates the regulation of mitochondrial metabolic activity by HDAC6. Our finding suggests that HDAC6 regulates mitochondrial metabolism and might serve as a cellular homeostasis surveillance factor.
Collapse
Affiliation(s)
- Kazuo Kamemura
- Department of Bioscience, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Birdsey GM, Dryden NH, Shah AV, Hannah R, Hall MD, Haskard DO, Parsons M, Mason JC, Zvelebil M, Gottgens B, Ridley AJ, Randi AM. The transcription factor Erg regulates expression of histone deacetylase 6 and multiple pathways involved in endothelial cell migration and angiogenesis. Blood 2012; 119:894-903. [PMID: 22117042 DOI: 10.1182/blood-2011-04-350025] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The endothelial ETS transcription factor Erg plays an important role in homeostasis and angiogenesis by regulating many endothelial functions including survival and junction stability. Here we show that Erg regulates endothelial cell (EC) migration. Transcriptome profiling of Erg-deficient ECs identified ∼ 80 genes involved in cell migration as candidate Erg targets, including many regulators of Rho- GTPases. Inhibition of Erg expression in HUVECs resulted in decreased migration in vitro, while Erg overexpression using adenovirus caused increased migration. Live-cell imaging of Erg-deficient HUVECs showed a reduction in lamellipodia, in line with decreased motility. Both actin and tubulin cytoskeletons were disrupted in Erg-deficient ECs, with a dramatic increase in tubulin acetylation. Among the most significant microarray hits was the cytosolic histone deacetylase 6 (HDAC6), a regulator of cell migration. Chromatin immunoprecipitation (ChIP) and transactivation studies demonstrated that Erg regulates HDAC6 expression. Rescue experiments confirmed that HDAC6 mediates the Erg-dependent regulation of tubulin acetylation and actin localization. In vivo, inhibition of Erg expression in angiogenic ECs resulted in decreased HDAC6 expression with increased tubulin acetylation. Thus, we have identified a novel function for the transcription factor Erg in regulating HDAC6 and multiple pathways essential for EC migration and angiogenesis.
Collapse
Affiliation(s)
- Graeme M Birdsey
- Cardiovascular Sciences, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, United Kingdom
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Bourque S, Dutartre A, Hammoudi V, Blanc S, Dahan J, Jeandroz S, Pichereaux C, Rossignol M, Wendehenne D. Type-2 histone deacetylases as new regulators of elicitor-induced cell death in plants. THE NEW PHYTOLOGIST 2011; 192:127-139. [PMID: 21651563 DOI: 10.1111/j.1469-8137.2011.03788.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
• Plant resistance to pathogen attack is often associated with a localized programmed cell death called hypersensitive response (HR). How this cell death is controlled remains largely unknown. • Upon treatment with cryptogein, an elicitor of tobacco defence and cell death, we identified NtHD2a and NtHD2b, two redundant isoforms of type-2 nuclear histone deacetylases (HDACs). These HDACs are phosphorylated after a few minutes' treatment, and their rate of mRNAs are rapidly and strongly reduced, leading to a 40-fold decrease after 10 h of treatment. • By using HDAC inhibitors, RNAi- and overexpression-based approaches, we showed that HDACs, and especially NtHD2a/b, act as inhibitors of cryptogein-induced cell death. Moreover, in NtHD2a/b-silenced plants, infiltration with cryptogein led to HR-like symptoms in distal leaves. • Taken together, these results show for the first time that type-2 HDACs, which are specific to plants, act as negative regulators of elicitor-induced cell death in tobacco (Nicotiana tabacum), suggesting that the HR is controlled by post-translational modifications including (de)acetylation of nuclear proteins.
Collapse
Affiliation(s)
- Stéphane Bourque
- UMR INRA 1088/CNRS 5184/Université de Bourgogne Plante-Microbe-Environnement, 17 Rue Sully, BP 86510, 21065 Dijon cedex, France
- GDR CNRS N°2688 'Calcium et régulation de l'expression des gènes en contexte normal et pathologique', 31000 Toulouse, France
| | - Agnès Dutartre
- UMR INRA 1088/CNRS 5184/Université de Bourgogne Plante-Microbe-Environnement, 17 Rue Sully, BP 86510, 21065 Dijon cedex, France
| | - Valentin Hammoudi
- UMR INRA 1088/CNRS 5184/Université de Bourgogne Plante-Microbe-Environnement, 17 Rue Sully, BP 86510, 21065 Dijon cedex, France
| | - Sabrina Blanc
- UMR INRA 1088/CNRS 5184/Université de Bourgogne Plante-Microbe-Environnement, 17 Rue Sully, BP 86510, 21065 Dijon cedex, France
| | - Jennifer Dahan
- UMR INRA 1088/CNRS 5184/Université de Bourgogne Plante-Microbe-Environnement, 17 Rue Sully, BP 86510, 21065 Dijon cedex, France
| | - Sylvain Jeandroz
- UPSP PROXISS, AgroSup Dijon, 26 Boulevard du Dr Petitjean, BP 87999, 21079 Dijon cedex, France
| | - Carole Pichereaux
- Plateforme Protéomique Génopole Toulouse Midi-Pyrénées, Institut de Pharmacologie et de Biologie Structurale (IPBS), CNRS, 205 route de Narbonne, F-31077 Toulouse, France and Université Paul Sabatier, Université de Toulouse, F-31077 Toulouse, France
| | - Michel Rossignol
- Plateforme Protéomique Génopole Toulouse Midi-Pyrénées, Institut de Pharmacologie et de Biologie Structurale (IPBS), CNRS, 205 route de Narbonne, F-31077 Toulouse, France and Université Paul Sabatier, Université de Toulouse, F-31077 Toulouse, France
| | - David Wendehenne
- UMR INRA 1088/CNRS 5184/Université de Bourgogne Plante-Microbe-Environnement, 17 Rue Sully, BP 86510, 21065 Dijon cedex, France
| |
Collapse
|
42
|
Class IIb HDAC6 regulates endothelial cell migration and angiogenesis by deacetylation of cortactin. EMBO J 2011; 30:4142-56. [PMID: 21847094 DOI: 10.1038/emboj.2011.298] [Citation(s) in RCA: 157] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Accepted: 07/26/2011] [Indexed: 11/08/2022] Open
Abstract
Histone deacetylases (HDACs) deacetylate histones and non-histone proteins, thereby affecting protein activity and gene expression. The regulation and function of the cytoplasmic class IIb HDAC6 in endothelial cells (ECs) is largely unexplored. Here, we demonstrate that HDAC6 is upregulated by hypoxia and is essential for angiogenesis. Silencing of HDAC6 in ECs decreases sprouting and migration in vitro and formation of functional vascular networks in matrigel plugs in vivo. HDAC6 regulates zebrafish vessel formation, and HDAC6-deficient mice showed a reduced formation of perfused vessels in matrigel plugs. Consistently, overexpression of wild-type HDAC6 increases sprouting from spheroids. HDAC6 function requires the catalytic activity but is independent of ubiquitin binding and deacetylation of α-tubulin. Instead, we found that HDAC6 interacts with and deacetylates the actin-remodelling protein cortactin in ECs, which is essential for zebrafish vessel formation and which mediates the angiogenic effect of HDAC6. In summary, we show that HDAC6 is necessary for angiogenesis in vivo and in vitro, involving the interaction and deacetylation of cortactin that regulates EC migration and sprouting.
Collapse
|
43
|
Aldana-Masangkay GI, Rodriguez-Gonzalez A, Lin T, Ikeda AK, Hsieh YT, Kim YM, Lomenick B, Okemoto K, Landaw EM, Wang D, Mazitschek R, Bradner JE, Sakamoto KM. Tubacin suppresses proliferation and induces apoptosis of acute lymphoblastic leukemia cells. Leuk Lymphoma 2011; 52:1544-55. [PMID: 21699378 DOI: 10.3109/10428194.2011.570821] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Over the past decade, histone deacetylase inhibitors have increasingly been used to treat various malignancies. Tubacin (tubulin acetylation inducer) is a small molecule that inhibits histone deacetylase 6 (HDAC6) and induces acetylation of α-tubulin. We observed a higher antiproliferative effect of tubacin in acute lymphoblastic leukemia (ALL) cells than in normal hematopoietic cells. Treatment with tubacin led to the induction of apoptotic pathways in both pre-B and T cell ALL cells at a 50% inhibitory concentration (IC(50)) of low micromolar concentrations. Acetylation of α-tubulin increases within the first 30 min following treatment of ALL cells with tubacin. We also observed an accumulation of polyubiquitinated proteins and poly(ADP-ribose) polymerase (PARP) cleavage. Furthermore, the signaling pathways activated by tubacin appear to be distinct from those observed in multiple myeloma. In this article, we demonstrate that tubacin enhances the effects of chemotherapy to treat primary ALL cells in vitro and in vivo. These results suggest that targeting HDAC6 alone or in combination with chemotherapy could provide a novel approach to treat ALL.
Collapse
|
44
|
Shakespear MR, Halili MA, Irvine KM, Fairlie DP, Sweet MJ. Histone deacetylases as regulators of inflammation and immunity. Trends Immunol 2011; 32:335-43. [PMID: 21570914 DOI: 10.1016/j.it.2011.04.001] [Citation(s) in RCA: 404] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Revised: 04/01/2011] [Accepted: 04/03/2011] [Indexed: 12/31/2022]
Abstract
Histone deacetylases (HDACs) remove an acetyl group from lysine residues of target proteins to regulate cellular processes. Small-molecule inhibitors of HDACs cause cellular growth arrest, differentiation and/or apoptosis, and some are used clinically as anticancer drugs. In animal models, HDAC inhibitors are therapeutic for several inflammatory diseases, but exacerbate atherosclerosis and compromise host defence. Loss of HDAC function has also been linked to chronic lung diseases in humans. These contrasting effects might reflect distinct roles for individual HDACs in immune responses. Here, we review the current understanding of innate and adaptive immune pathways that are regulated by classical HDAC enzymes. The objective is to provide a rationale for targeting (or not targeting) individual HDAC enzymes with inhibitors for future immune-related applications.
Collapse
Affiliation(s)
- Melanie R Shakespear
- The University of Queensland, Institute for Molecular Bioscience and Australian Infectious Diseases Research Centre, Queensland 4072, Australia
| | | | | | | | | |
Collapse
|
45
|
Akisaka T, Yoshida H, Takigawa T. Differential distribution of posttranslationally modified microtubules in osteoclasts. J Histochem Cytochem 2011; 59:630-8. [PMID: 21421796 DOI: 10.1369/0022155411405334] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The differential distribution of microtubules in osteoclasts in culture was examined by using antibodies against acetylated, tyrosinated, or detyrosinated tubulins. Tyrosinated tubulin was found throughout the cytoplasmic microtubules in all cells examined. An expanding protrusion that contained tyrosinated tubulin but none of the detyrosinated or acetylated form was seen in the immature osteoclasts. Detyrosinated or acetylated tubulin was detectable in the peripheral cytoplasm of the mature osteoclasts displaying the loss of the expanding protrusion. Although most of the microtubules were derived from the centrosome, noncentrosomal microtubules were distributed in the expanding protrusion, which was predominantly positive for tyrosinated tubulin. By tracing single microtubules, the authors found that their growing ends were always rich in tyrosinated tubulin subunits. End binding protein 1 bound preferentially to the microtubule ends. Both acetylated and tyrosinated microtubules were shown to be closely associated with podosomes. Microtubules appeared to grow over or into the podosomes; in addition, the growing ends of single microtubules could be observed to target the podosomes. Moreover, a microtubule-associated histone deacetylase 6 was localized in the podosomes of the osteoclast. On the basis of these results, the authors conclude that posttranslational modifications of microtubules may correlate with characteristic changes in podosome dynamics in osteoclasts.
Collapse
Affiliation(s)
- Toshitaka Akisaka
- Division of Oral Anatomy, Asahi University School of Dentistry, Mizuho, Gifu, Japan. mail:
| | | | | |
Collapse
|
46
|
The role of HDAC6 in cancer. J Biomed Biotechnol 2010; 2011:875824. [PMID: 21076528 PMCID: PMC2975074 DOI: 10.1155/2011/875824] [Citation(s) in RCA: 275] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 09/24/2010] [Accepted: 09/29/2010] [Indexed: 01/28/2023] Open
Abstract
Histone deacetylase 6 (HDAC6), a member of the HDAC family whose major substrate is α-tubulin, has become a target for drug development to treat cancer due to its major contribution in oncogenic cell transformation. Overexpression of HDAC6 correlates with tumorigenesis and improved survival; therefore, HDAC6 may be used as a marker for prognosis. Previous work demonstrated that in multiple myeloma cells, inhibition of HDAC6 results in apoptosis. Furthermore, HDAC6 is required for the activation of heat-shock factor 1 (HSF1), an activator of heat-shock protein encoding genes (HSPs) and CYLD, a cylindromatosis tumor suppressor gene. HDAC6 contributes to cancer metastasis since its upregulation increases cell motility in breast cancer MCF-7 cells and its interaction with cortactin regulates motility. HDAC6 also affects transcription and translation by regulating the heat-shock protein 90 (Hsp90) and stress granules (SGs), respectively. This review will discuss the role of HDAC6 in the pathogenesis and treatment of cancer.
Collapse
|
47
|
Perdiz D, Mackeh R, Poüs C, Baillet A. The ins and outs of tubulin acetylation: more than just a post-translational modification? Cell Signal 2010; 23:763-71. [PMID: 20940043 DOI: 10.1016/j.cellsig.2010.10.014] [Citation(s) in RCA: 169] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2010] [Accepted: 10/01/2010] [Indexed: 11/17/2022]
Abstract
Microtubules are highly dynamic polymers of α/β tubulin heterodimers that play key roles in cell division and in organizing cell cytoplasm. Although they have been discovered more than two decades ago, tubulin post-translational modifications recently gained a new interest as their role was increasingly highlighted in neuron differentiation and neurodegenerative disorders. Here, we specifically focus on tubulin acetylation from its discovery to recent studies that provide new insights into how it is regulated in health and disease and how it impacts microtubule functions. Even though new mechanisms involving tubulin acetylation are regularly being uncovered, the molecular links between its location inside the microtubule lumen and its regulators and effectors is still poorly understood. This review highlights the emerging roles of tubulin acetylation in multiple cellular functions, ranging from cell motility, cell cycle progression or cell differentiation to intracellular trafficking and signalling. It also points out that tubulin acetylation should no longer be seen as a passive marker of microtubule stability, but as a broad regulator of microtubule functions.
Collapse
Affiliation(s)
- Daniel Perdiz
- Univ. Paris Sud-11, UPRES EA4530 IFR IPSIT, Faculté de Pharmacie, 5 rue JB Clément 92296 Châtenay-Malabry, France
| | | | | | | |
Collapse
|
48
|
Impaired function of HDAC6 slows down axonal growth and interferes with axon initial segment development. PLoS One 2010; 5:e12908. [PMID: 20886111 PMCID: PMC2944822 DOI: 10.1371/journal.pone.0012908] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2010] [Accepted: 08/29/2010] [Indexed: 11/30/2022] Open
Abstract
The development of morphological neuronal polarity starts by the formation and elongation of an axon. At the same time the axon initial segment (AIS) is generated and creates a diffusion barrier which differentiate axon and somatodendritic compartment. Different structural and functional proteins that contribute to the generation of neuronal action potential are concentrated at the axon initial segment. While axonal elongation is controlled by signalling pathways that regulate cytoskeleton through microtubule associated proteins and tubulin modifications, the microtubule cytoskeleton under the AIS is mostly unknown. Thus, understanding which proteins modify tubulin, where in the neuron and at which developmental stage is crucial to understanding how morphological and functional neuronal polarity is achieved. In this study performed in mice and using a well established model of murine cultured hippocampal neurons, we report that the tubulin deacetylase HDAC6 is localized at the distal region of the axon, and its inhibition with TSA or tubacin slows down axonal growth. Suppression of HDAC6 expression with HDAC6 shRNAs or expression of a non-active mutant of HDAC6 also reduces axonal length. Furthermore, HDAC6 inhibition or suppression avoids the concentration of ankyrinG and sodium channels at the axon initial segment (AIS). Moreover, treatment of mouse cultured hippocampal neurons with detergents to eliminate the soluble pool of microtubules identified a pool of detergent resistant acetylated microtubules at the AIS, not present at the rest of the axon. Inhibition or suppression of HDAC6 increases acetylation all along the axon and disrupts the specificity of AIS cytoskeleton, modifying the axonal distal gradient localization of KIF5C to a somatodendritic and axonal localization. In conclusion, our results reveal a new role of HDAC6 tubulin deacetylase as a regulator of microtubule characteristics in the axon distal region where axonal elongation takes place, and allowing the development of acetylated microtubules microdomains where HDAC6 is not concentrated, such as the axon initial segment.
Collapse
|
49
|
Mendrysa SM, Akagi K, Roayaei J, Lien WH, Copeland NG, Jenkins NA, Eisenman RN. An Integrated Genetic-Genomic Approach for the Identification of Novel Cancer Loci in Mice Sensitized to c-Myc-Induced Apoptosis. Genes Cancer 2010; 1:465-479. [PMID: 20927200 DOI: 10.1177/1947601910374875] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Deregulated c-Myc is associated with a wide range of human cancers. In many cell types, overexpression of c-Myc potently promotes cell growth and proliferation concomitant with the induction of apoptosis. Secondary genetic events that shift this balance either by increasing growth and proliferation or limiting apoptosis are likely to cooperate with c-Myc in tumorigenesis. Here, the authors have performed large-scale insertional mutagenesis in Eμ-c-myc mice that, through mdm2 loss of function mutations, are sensitized to apoptosis. The authors chose to use this genetic background based on the hypothesis that the high level of apoptosis induced by c-Myc overexpression in MDM2-deficient mice would act as a rate-limiting barrier for lymphoma development. As a result, it was predicted that the spectrum of retroviral insertions would be shifted toward loci that harbor antiapoptotic genes. Nine novel common insertion sites (CISs) specific to mice with this sensitized genetic background were identified, suggesting the presence of novel antiapoptotic cancer genes. Moreover, cross-comparing the data to the Retroviral Tagged Cancer Gene Database, the authors identified an additional 23 novel CISs. Here, evidence is presented that 2 genes, ppp1r16b and hdac6, identified at CISs, are bona fide cellular oncogenes. This study highlights the power of combining unique sensitized genetic backgrounds with large-scale mutagenesis as an approach for identifying novel cancer genes.
Collapse
Affiliation(s)
- Susan M Mendrysa
- Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | | | | | | | | | | | | |
Collapse
|
50
|
Wickström SA, Masoumi KC, Khochbin S, Fässler R, Massoumi R. CYLD negatively regulates cell-cycle progression by inactivating HDAC6 and increasing the levels of acetylated tubulin. EMBO J 2010; 29:131-44. [PMID: 19893491 PMCID: PMC2775896 DOI: 10.1038/emboj.2009.317] [Citation(s) in RCA: 130] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2009] [Accepted: 10/07/2009] [Indexed: 02/02/2023] Open
Abstract
CYLD is a tumour-suppressor gene that is mutated in a benign skin tumour syndrome called cylindromatosis. The CYLD gene product is a deubiquitinating enzyme that was shown to regulate cell proliferation, cell survival and inflammatory responses, mainly through inhibiting NF-kappaB signalling. Here we show that CYLD controls cell growth and division at the G(1)/S-phase as well as cytokinesis by associating with alpha-tubulin and microtubules through its CAP-Gly domains. Translocation of activated CYLD to the perinuclear region of the cell is achieved by an inhibitory interaction of CYLD with histone deacetylase-6 (HDAC6) leading to an increase in the levels of acetylated alpha-tubulin around the nucleus. This facilitates the interaction of CYLD with Bcl-3, leading to a significant delay in the G(1)-to-S-phase transition. Finally, CYLD also interacts with HDAC6 in the midbody where it regulates the rate of cytokinesis in a deubiquitinase-independent manner. Altogether these results identify a mechanism by which CYLD regulates cell proliferation at distinct cell-cycle phases.
Collapse
Affiliation(s)
- Sara A Wickström
- Department of Molecular Medicine, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Katarzyna C Masoumi
- Department of Laboratory Medicine, Lund University, Malmö University Hospital, Malmö, Sweden
| | - Saadi Khochbin
- INSERM, U823, Université Joseph Fourier, Institut Albert Bonniot, Grenoble, France
| | - Reinhard Fässler
- Department of Molecular Medicine, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Ramin Massoumi
- Department of Molecular Medicine, Max Planck Institute of Biochemistry, Martinsried, Germany
- Department of Laboratory Medicine, Clinical Research Center, Lund University, Malmö University Hospital, Malmö, Sweden
| |
Collapse
|