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Ling H, Li Y, Peng C, Yang S, Seto E. HDAC10 inhibition represses melanoma cell growth and BRAF inhibitor resistance via upregulating SPARC expression. NAR Cancer 2024; 6:zcae018. [PMID: 38650694 PMCID: PMC11034028 DOI: 10.1093/narcan/zcae018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/08/2024] [Accepted: 04/09/2024] [Indexed: 04/25/2024] Open
Abstract
Secreted protein acidic and rich in cysteine (SPARC), a conserved secreted glycoprotein, plays crucial roles in regulating various biological processes. SPARC is highly expressed and has profound implications in several cancer types, including melanoma. Understanding the mechanisms that govern SPARC expression in cancers has the potential to lead to improved cancer diagnosis, prognosis, treatment strategies, and patient outcomes. Here, we demonstrate that histone deacetylase 10 (HDAC10) is a key regulator of SPARC expression in melanoma cells. Depletion or inhibition of HDAC10 upregulates SPARC expression, whereas overexpression of HDAC10 downregulates it. Mechanistically, HDAC10 coordinates with histone acetyltransferase p300 to modulate the state of acetylation of histone H3 at lysine 27 (H3K27ac) at SPARC regulatory elements and the recruitment of bromodomain-containing protein 4 (BRD4) to these regions, thereby fine-tuning SPARC transcription. HDAC10 depletion and resultant SPARC upregulation repress melanoma cell growth primarily by activating AMPK signaling and inducing autophagy. Moreover, SPARC upregulation due to HDAC10 depletion partly accounts for the resensitization of resistant cells to a BRAF inhibitor. Our work reveals the role of HDAC10 in gene regulation through indirect histone modification and suggests a potential therapeutic strategy for melanoma or other cancers by targeting HDAC10 and SPARC.
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Affiliation(s)
- Hongbo Ling
- George Washington Cancer Center, Department of Biochemistry & Molecular Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC 20037, USA
| | - Yixuan Li
- George Washington Cancer Center, Department of Biochemistry & Molecular Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC 20037, USA
| | - Changmin Peng
- George Washington Cancer Center, Department of Biochemistry & Molecular Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC 20037, USA
| | - Shengyu Yang
- Department of Cellular and Molecular Physiology, Penn State Cancer Institute, The Penn State University, 400 University Drive, Hershey, PA 17033, USA
| | - Edward Seto
- George Washington Cancer Center, Department of Biochemistry & Molecular Medicine, The George Washington University School of Medicine & Health Sciences, Washington, DC 20037, USA
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Ling H, Li Y, Peng C, Yang S, Seto E. HDAC10 blockade upregulates SPARC expression thereby repressing melanoma cell growth and BRAF inhibitor resistance. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.05.570182. [PMID: 38106051 PMCID: PMC10723323 DOI: 10.1101/2023.12.05.570182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Secreted Protein Acidic and Rich in Cysteine (SPARC), a highly conserved secreted glycoprotein, is crucial for various bioprocesses. Here we demonstrate that histone deacetylase 10 (HDAC10) is a key regulator of SPARC expression. HDAC10 depletion or inhibition upregulates, while overexpression of HDAC10 downregulates, SPARC expression. Mechanistically, HDAC10 coordinates with histone acetyltransferase p300 to modulate the acetylation state of histone H3 lysine 27 (H3K27ac) at SPARC regulatory elements and the recruitment of bromodomain-containing protein 4 (BRD4) to these regions, thereby tuning SPARC transcription. HDAC10 depletion and resultant SPARC upregulation repress melanoma cell growth, primarily by induction of autophagy via activation of AMPK signaling. Moreover, SPARC upregulation due to HDAC10 depletion partly accounts for the resensitivity of resistant cells to a BRAF inhibitor. Our work reveals the role of HDAC10 in gene regulation through epigenetic modification and suggests a potential therapeutic strategy for melanoma or other cancers by targeting HDAC10 and SPARC. Highlights HDAC10 is the primary HDAC member that tightly controls SPARC expression. HDAC10 coordinates with p300 in modulating the H3K27ac state at SPARC regulatory elements and the recruitment of BRD4 to these regions. HDAC10 depletion and resultant SPARC upregulation inhibit melanoma cell growth by inducing autophagy via activation of AMPK signaling.SPARC upregulation as a result of HDAC10 depletion resensitizes resistant cells to BRAF inhibitors.
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Yan R, Ding J, Yang Q, Zhang X, Han J, Jin T, Shi S, Wang X, Zheng Y, Li H, Zhang H, An Y. Lead acetate induces cartilage defects and bone loss in zebrafish embryos by disrupting the GH/IGF-1 axis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 253:114666. [PMID: 36812871 DOI: 10.1016/j.ecoenv.2023.114666] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Skeletal system toxicity due to lead exposure has attracted extensive attention in recent years, but few studies focus on the skeletal toxicity of lead in the early life stages of zebrafish. The endocrine system, especially the GH/IGF-1 axis, plays an important role in bone development and bone health of zebrafish in the early life. In the present study, we investigated whether lead acetate (PbAc) affected the GH/IGF-1 axis, thereby causing skeletal toxicity in zebrafish embryos. Zebrafish embryos were exposed to lead PbAc between 2 and 120 h post fertilization (hpf). At 120 hpf, we measured developmental indices, such as survival, deformity, heart rate, and body length, and assessed skeletal development by Alcian Blue and Alizarin Red staining and the expression levels of bone-related genes. The levels of GH and IGF-1 and the expression levels of GH/IGF-1 axis-related genes were also detected. Our data showed that the LC50 of PbAc for 120 h was 41 mg/L. Compared with the control group (0 mg/L PbAc), after PbAc exposure, the deformity rate increased, the heart rate decreased, and the body length was shortened at various time periods, in the 20-mg/L group at 120 hpf, the deformity rate increased by 50 fold, the heart rate decreased by 34%, and the body length shortened by 17%. PbAc altered cartilage structures and exacerbated bone loss in zebrafish embryos; in addition, PbAc exposure down-regulated the expression of chondrocyte (sox9a, sox9b), osteoblast (bmp2, runx2) and bone mineralization-related genes (sparc, bglap), and up-regulated the expression of osteoclast marker genes (rankl, mcsf). The GH level increased and the IGF-1 level declined significantly. The GH/IGF-1 axis related genes (ghra, ghrb, igf1ra, igf1rb, igf2r, igfbp2a, igfbp3, igfbp5b) were all decreased. These results suggested that PbAc inhibited the differentiation and maturation of osteoblasts and cartilage matrix, promoted the formation of osteoclasts, and ultimately induced cartilage defects and bone loss by disrupting the GH/IGF-1 axis.
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Affiliation(s)
- Rui Yan
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translation-al Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China.
| | - Jie Ding
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translation-al Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China.
| | - Qianlei Yang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translation-al Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China.
| | - Xiaoyun Zhang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translation-al Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China.
| | - Junyu Han
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translation-al Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China.
| | - Tingxu Jin
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translation-al Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China.
| | - Shudi Shi
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translation-al Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China.
| | - Xirui Wang
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translation-al Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China.
| | - Yu Zheng
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translation-al Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China.
| | - Heran Li
- Microwants International LTD, 999077, Hong Kong, China.
| | - Hengdong Zhang
- Department of Occupational Disease Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China; Jiangsu Preventive Medicine Association, Nanjing 210009, China.
| | - Yan An
- Department of Toxicology, School of Public Health, Jiangsu Key Laboratory of Preventive and Translation-al Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou 215123, China.
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Tsuji N, Sakamoto T, Hoshi K, Hikita A. Spatiotemporal Analysis of Osteoblast Morphology and Wnt Signal‐Induced Osteoblast Reactivation during Bone Modeling in Vitro. JBMR Plus 2022; 6:e10689. [PMID: 36398107 PMCID: PMC9664540 DOI: 10.1002/jbm4.10689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 09/29/2022] [Indexed: 11/09/2022] Open
Abstract
Bone nodule formation by differentiating osteoblasts is considered an in vitro model that mimics bone modeling. However, the details of osteoblast behavior and matrix production during bone nodule formation are poorly understood. Here, we present a spatiotemporal analysis system for evaluating osteoblast morphology and matrix production during bone modeling in vitro via two-photon microscopy. Using this system, a change in osteoblast morphology from cuboidal to flat was observed during the formation of mineralized nodules, and this change was quantified. Areas with high bone formation were densely populated with cuboidal osteoblasts, which were characterized by blebs, protruding structures on their cell membranes. Cuboidal osteoblasts with blebs were highly mobile, and osteoblast blebs exhibited a polar distribution. Furthermore, mimicking romosozumab treatment, when differentiated flattened osteoblasts were stimulated with BIO, a GSK3β inhibitor, they were reactivated to acquire a cuboidal morphology with blebs on their membranes and produced more matrix than nonstimulated cells. Our analysis system is a powerful tool for evaluating the cell morphology and function of osteoblasts during bone modeling. © 2022 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Naoki Tsuji
- Department of Sensory and Motor System Medicine, Graduate School of Medicine The University of Tokyo Tokyo Japan
| | - Tomoaki Sakamoto
- Department of Tissue Engineering The University of Tokyo Hospital Tokyo Japan
| | - Kazuto Hoshi
- Department of Sensory and Motor System Medicine, Graduate School of Medicine The University of Tokyo Tokyo Japan
- Department of Tissue Engineering The University of Tokyo Hospital Tokyo Japan
| | - Atsuhiko Hikita
- Department of Tissue Engineering The University of Tokyo Hospital Tokyo Japan
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Thiel A, Reumann MK, Boskey A, Wischmann J, von Eisenhart-Rothe R, Mayer-Kuckuk P. Osteoblast migration in vertebrate bone. Biol Rev Camb Philos Soc 2017. [PMID: 28631442 DOI: 10.1111/brv.12345] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Bone formation, for example during bone remodelling or fracture repair, requires mature osteoblasts to deposit bone with remarkable spatial precision. As osteoblast precursors derive either from circulation or resident stem cell pools, they and their progeny are required to migrate within the three-dimensional bone space and to navigate to their destination, i.e. to the site of bone formation. An understanding of this process is emerging based on in vitro and in vivo studies of several vertebrate species. Receptors on the osteoblast surface mediate cell adhesion and polarization, which induces osteoblast migration. Osteoblast migration is then facilitated along gradients of chemoattractants. The latter are secreted or released proteolytically by several cell types interacting with osteoblasts, including osteoclasts and vascular endothelial cells. The positions of these cellular sources of chemoattractants in relation to the position of the osteoblasts provide the migrating osteoblasts with tracks to their destination, and osteoblasts possess the means to follow a track marked by multiple chemoattractant gradients. In addition to chemotactic cues, osteoblasts sense other classes of signals and utilize them as landmarks for navigation. The composition of the osseous surface guides adhesion and hence migration efficiency and can also provide steering through haptotaxis. Further, it is likely that signals received from surface interactions modulate chemotaxis. Besides the nature of the surface, mechanical signals such as fluid flow may also serve as navigation signals for osteoblasts. Alterations in osteoblast migration and navigation might play a role in metabolic bone diseases such as osteoporosis.
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Affiliation(s)
- Antonia Thiel
- Bone Cell and Imaging Laboratory, Department of Orthopedics, Klinikum rechts der Isar, Ismaninger Straße 22, Technical University Munich, 81675 München, Germany
| | - Marie K Reumann
- Siegfried Weller Institute, BG Hospital, University of Tübingen, Schnarrenbergstraße 95, 72076 Tübingen, Germany
| | - Adele Boskey
- Mineralized Tissue Laboratory, Research Division, Hospital for Special Surgery, 535 E 70th Street, New York, NY 10021, U.S.A
| | - Johannes Wischmann
- Bone Cell and Imaging Laboratory, Department of Orthopedics, Klinikum rechts der Isar, Ismaninger Straße 22, Technical University Munich, 81675 München, Germany
| | - Rüdiger von Eisenhart-Rothe
- Bone Cell and Imaging Laboratory, Department of Orthopedics, Klinikum rechts der Isar, Ismaninger Straße 22, Technical University Munich, 81675 München, Germany
| | - Philipp Mayer-Kuckuk
- Bone Cell and Imaging Laboratory, Department of Orthopedics, Klinikum rechts der Isar, Ismaninger Straße 22, Technical University Munich, 81675 München, Germany
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Dumaual CM, Steere BA, Walls CD, Wang M, Zhang ZY, Randall SK. Integrated analysis of global mRNA and protein expression data in HEK293 cells overexpressing PRL-1. PLoS One 2013; 8:e72977. [PMID: 24019887 PMCID: PMC3760866 DOI: 10.1371/journal.pone.0072977] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 07/17/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The protein tyrosine phosphatase PRL-1 represents a putative oncogene with wide-ranging cellular effects. Overexpression of PRL-1 can promote cell proliferation, survival, migration, invasion, and metastasis, but the underlying mechanisms by which it influences these processes remain poorly understood. METHODOLOGY To increase our comprehension of PRL-1 mediated signaling events, we employed transcriptional profiling (DNA microarray) and proteomics (mass spectrometry) to perform a thorough characterization of the global molecular changes in gene expression that occur in response to stable PRL-1 overexpression in a relevant model system (HEK293). PRINCIPAL FINDINGS Overexpression of PRL-1 led to several significant changes in the mRNA and protein expression profiles of HEK293 cells. The differentially expressed gene set was highly enriched in genes involved in cytoskeletal remodeling, integrin-mediated cell-matrix adhesion, and RNA recognition and splicing. In particular, members of the Rho signaling pathway and molecules that converge on this pathway were heavily influenced by PRL-1 overexpression, supporting observations from previous studies that link PRL-1 to the Rho GTPase signaling network. In addition, several genes not previously associated with PRL-1 were found to be significantly altered by its expression. Most notable among these were Filamin A, RhoGDIα, SPARC, hnRNPH2, and PRDX2. CONCLUSIONS AND SIGNIFICANCE This systems-level approach sheds new light on the molecular networks underlying PRL-1 action and presents several novel directions for future, hypothesis-based studies.
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Affiliation(s)
- Carmen M. Dumaual
- Department of Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana, United States of America
| | - Boyd A. Steere
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana, United States of America
| | - Chad D. Walls
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Mu Wang
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Zhong-Yin Zhang
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, United States of America
| | - Stephen K. Randall
- Department of Biology, Indiana University-Purdue University Indianapolis, Indianapolis, Indiana, United States of America
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Tan TW, Pfau B, Jones D, Meyer T. Stimulation of primary osteoblasts with ATP induces transient vinculin clustering at sites of high intracellular traction force. J Mol Histol 2013; 45:81-9. [PMID: 23933795 PMCID: PMC4544565 DOI: 10.1007/s10735-013-9530-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Accepted: 07/25/2013] [Indexed: 01/24/2023]
Abstract
Adenosine 5′-triphosphate (ATP), released in response to mechanical and inflammatory stimuli, induces the dynamic and asynchronous protrusion and subsequent retraction of local membrane structures in osteoblasts. The molecular mechanisms involved in the ligand-stimulated herniation of the plasma membrane are largely unknown, which prompted us to investigate whether the focal-adhesion protein vinculin is engaged in the cytoskeletal alterations that underlie the ATP-induced membrane blebbing. Using time-lapse fluorescence microscopy of primary bovine osteoblast-like cells expressing green fluorescent protein-tagged vinculin, we found that stimulation of cells with 100 μM ATP resulted in the transient and rapid clustering of recombinant vinculin in the cell periphery, starting approximately 100 s after addition of the nucleotide. The ephemeral nature of the vinculin clusters was made evident by the brevity of their mean assembly and disassembly times (66.7 ± 13.3 s and 99.0 ± 6.6 s, respectively). Traction force vector maps demonstrated that the vinculin-rich clusters were localized predominantly at sites of high traction force. Intracellular calcium measurements showed that the ligand-induced increase in [Ca2+]i clearly preceded the clustering of vinculin, since [Ca2+]i levels returned to normal within 30 s of exposure to ATP, indicating that intracellular calcium transients trigger a cascade of signalling events that ultimately result in the incorporation of vinculin into membrane-associated focal aggregates.
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Affiliation(s)
- Toh Weng Tan
- Institute for Experimental Orthopaedics and Biomechanics, University of Marburg, Marburg, Germany
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Heberer S, Wustlich A, Lage H, Nelson JJ, Nelson K. Osteogenic potential of mesenchymal cells embedded in the provisional matrix after a 6-week healing period in augmented and non-augmented extraction sockets: an immunohistochemical prospective pilot study in humans. Clin Oral Implants Res 2011; 23:19-27. [DOI: 10.1111/j.1600-0501.2010.02148.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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