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Zheng X, Cao J, Wang H, Liu L, Jin B, Zhang H, Li M, Nian S, Li H, He R, Wang N, Li X, Wang K. Effects of tauroursodeoxycholate on arsenic-induced hepatic injury in mice: A comparative transcriptomic analysis. J Trace Elem Med Biol 2024; 86:127512. [PMID: 39232337 DOI: 10.1016/j.jtemb.2024.127512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 07/19/2024] [Accepted: 08/20/2024] [Indexed: 09/06/2024]
Abstract
BACKGROUND Prolonged exposure to excessive arsenic (As) and its compounds can cause damage to multiple systems, including respiratory, cardiovascular, immune, nervous, and endocrine systems. Manifestations include changes in skin pigmentation, excessive keratosis on palms and soles, gastrointestinal symptoms, and anemia. The liver as an important detoxification organ of the body, is a significant target organ for arsenic toxicity, and liver diseases are common. So far, the molecular mechanism has not been fully elucidated. Evidence suggests that taurodeoxycholic acid (TUDCA) has a protective role in arsenic-induced liver injury. This study aims to reveal potential target genes at the transcriptional level following TUDCA intervention, providing insights for the intervention of arsenic-induced liver injury. METHODS The TUDCA intervention model of arsenic liver injury in C57BL/6 N mice was established. The experiment was divided into two phases and lasted for 24 weeks. The phase I trial (12 weeks) was divided into control, low, middle and high groups according to the dose of As. The phaseⅡtrial (12 weeks) was administered in combination with 10 mg/L sodium arsenite (the first stage high arsenic group) and TUDCA, so subsequent groups was named with H indicating high arsenic. Divide into four groups: control group(C), TUDCA solvent control group(H-Vehicle), TUDCA combined with As group(H-TUDCA), arsenic group (As). As was ingested through free water and TUDCA was administered to mice by gavage at a dose of 0.1 mL/10 g.b.w (100 mg/kg) once a day for 12 weeks. The differential expression gene (DEG) profile was obtained from the second batch of mouse liver tissues by RNA sequencing technology. Comparative transcriptomic analysis methods were used to identify co-varying DEGs between arsenic induction and TUDCA intervention, along with their associated pathways. QRT-PCR was utilized for validation. RESULTS Transcriptome results showed that 487 DEGs were identified after arsenic induction. TUDCA intervention identified 231 DEGs (p-values < 0.05 and | log2(fold change) | > 1). The comparison of "AS vs C" and "H_TUDCA vs AS" identified 65 covariant DEGs, and further screened the TUDCA pathways and related genes among these genes,six pathways and 11 genes (Ccl21a, Ccr7, Mdm2, Slc2a4, Akr1b7, Pnpla3, Dusp8, Hspa1a, Cyp7a1, Cybrd1, Trpm6) were obtained. Next, we screened for covariant DEGs among the top 50 potential hub genes in arsenic-induced DEGS, and obtained 7 (Hbb-bs, Hspa1a, Mdm2, Slc2a4, Ptk6, Egr1, and Dusp8). Finally, the intersection of Hub gene and pathway gene was selected as the target genes Dusp8, Hspa1a, Mdm2 and Slc2a4. The sequencing results showed that the mRNA expressions of Dusp8, Hspa1a and Mdm2 were significantly increased after arsenic induction, while the expression of Slc2a4 was significantly decreased (P<0.05). Conversely, TUDCA intervention reversed these DEGs changes, consistent with QRT-PCR validation results. CONCLUSION This study contributes to understanding the potential health effects of arsenic-induced liver injury, identifying new potential targets, and providing references for TUDCA intervention.
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Affiliation(s)
- Xiujuan Zheng
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China; Harbin Municipal Center for Disease Control and Prevention, Harbin 150056, PR China.
| | - Jianbin Cao
- Harbin Municipal Center for Disease Control and Prevention, Harbin 150056, PR China.
| | - He Wang
- Department of Medical, The Fourth Hospital of Harbin Medical University, Harbin 150001, PR China.
| | - Lele Liu
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China; The first psychological hospital of Harbin, Harbin 150081, PR China.
| | - Baiming Jin
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China; Department of Preventive Medicine, Qiqihar Medical University, Qiqihar 161006, PR China.
| | - Hua Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Mingqi Li
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Shijing Nian
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Haonan Li
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Rui He
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Ningning Wang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China; Department of Preventive Medicine, Qiqihar Medical University, Qiqihar 161006, PR China.
| | - Xuying Li
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Kewei Wang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health, Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
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Turkowski K, Herzberg F, Günther S, Weigert A, Haselbauer T, Fink L, Brunn D, Grimminger F, Seeger W, Sültmann H, Stiewe T, Pullamsetti SS, Savai R. miR-147b mediated suppression of DUSP8 promotes lung cancer progression. Oncogene 2024; 43:1178-1189. [PMID: 38396293 PMCID: PMC11014796 DOI: 10.1038/s41388-024-02969-7] [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: 06/27/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024]
Abstract
Dual-specificity phosphatase 8 (DUSP8) plays an important role as a selective c-Jun N-terminal kinase (JNK) phosphatase in mitogen-activated protein kinase (MAPK) signaling. In this study, we found that DUSP8 is silenced by miR-147b in patients with lung adenocarcinoma (LUAD), which correlates with poor overall survival. Overexpression of DUSP8 resulted in a tumor-suppressive phenotype in vitro and in vivo experimental models, whereas silencing DUSP8 with a siRNA approach abrogated the tumor-suppressive properties. We found that miR-147b is a posttranscriptional regulator of DUSP8 that is highly expressed in patients with LUAD and is associated with lower survival. NanoString analysis revealed that the MAPK signaling pathway is mainly affected by overexpression of miR-147b, leading to increased proliferation and migration and decreased apoptosis in vitro. Moreover, induction of miR-147b promotes tumor progression in vitro and in vivo experimental models. Knockdown of miR-147b restored DUSP8, decreased tumor progression in vitro, and increased apoptosis via JNK phosphorylation. These results suggest that miR-147b plays a key role in regulating MAPK signaling in LUAD. The link between DUSP8 and miR-147b may provide novel approaches for the treatment of lung cancer.
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Affiliation(s)
- Kati Turkowski
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim, 61231, Germany
- Institute for Lung Health (ILH), Justus Liebig University, 35392, Giessen, Germany
| | - Frederik Herzberg
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim, 61231, Germany
| | - Stefan Günther
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim, 61231, Germany
| | - Andreas Weigert
- Goethe-University Frankfurt, Faculty of Medicine, Institute of Biochemistry I, Frankfurt, Germany
- Frankfurt Cancer Institute (FCI), Goethe University, and German Cancer Consortium (DKTK), Hesse, Germany
| | - Tamara Haselbauer
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim, 61231, Germany
| | - Ludger Fink
- Institute of Pathology and Cytology, UEGP, Wetzlar, Germany
| | - David Brunn
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim, 61231, Germany
| | - Friedrich Grimminger
- Institute for Lung Health (ILH), Justus Liebig University, 35392, Giessen, Germany
- Department of Internal Medicine, Member of the DZL, Member of CPI, Justus Liebig University, 35392, Giessen, Germany
| | - Werner Seeger
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim, 61231, Germany
- Institute for Lung Health (ILH), Justus Liebig University, 35392, Giessen, Germany
- Department of Internal Medicine, Member of the DZL, Member of CPI, Justus Liebig University, 35392, Giessen, Germany
| | - Holger Sültmann
- Cancer Genome Research Group, German Cancer Research Center (DKFZ), Germany Center for Lung Research (DZL), and German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Thorsten Stiewe
- Institute for Lung Health (ILH), Justus Liebig University, 35392, Giessen, Germany
- Institute of Molecular Oncology, Philipps-University, 35043, Marburg, Germany
| | - Soni S Pullamsetti
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim, 61231, Germany
- Institute for Lung Health (ILH), Justus Liebig University, 35392, Giessen, Germany
- Department of Internal Medicine, Member of the DZL, Member of CPI, Justus Liebig University, 35392, Giessen, Germany
| | - Rajkumar Savai
- Max Planck Institute for Heart and Lung Research, Member of the German Center for Lung Research (DZL), Member of the Cardio-Pulmonary Institute (CPI), Bad Nauheim, 61231, Germany.
- Institute for Lung Health (ILH), Justus Liebig University, 35392, Giessen, Germany.
- Frankfurt Cancer Institute (FCI), Goethe University, and German Cancer Consortium (DKTK), Hesse, Germany.
- Department of Internal Medicine, Member of the DZL, Member of CPI, Justus Liebig University, 35392, Giessen, Germany.
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Dusp8 affects hippocampal size and behavior in mice and humans. Sci Rep 2019; 9:19483. [PMID: 31862894 PMCID: PMC6925303 DOI: 10.1038/s41598-019-55527-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 11/30/2019] [Indexed: 12/29/2022] Open
Abstract
Dual-specificity phosphatase 8 (Dusp8) acts as physiological inhibitor for the MAPKs Jnk, Erk and p38 which are involved in regulating multiple CNS processes. While Dusp8 expression levels are high in limbic areas such as the hippocampus, the functional role of Dusp8 in hippocampus morphology, MAPK-signaling, neurogenesis and apoptosis as well as in behavior are still unclear. It is of particular interest whether human carriers of a DUSP8 allelic variant show similar hippocampal alterations to mice. Addressing these questions using Dusp8 WT and KO mouse littermates, we found that KOs suffered from mildly impaired spatial learning, increased locomotor activity and elevated anxiety. Cell proliferation, apoptosis and p38 and Jnk phosphorylation were unaffected, but phospho-Erk levels were higher in hippocampi of the KOs. Consistent with a decreased hippocampus size in Dusp8 KO mice, we found reduced volumes of the hippocampal subregions subiculum and CA4 in humans carrying the DUSP8 allelic variant SNP rs2334499:C > T. Overall, aberrations in morphology and behavior in Dusp8 KO mice and a decrease in hippocampal volume of SNP rs2334499:C > T carriers point to a novel, translationally relevant role of Dusp8 in hippocampus function that warrants further studies on the role of Dusp8 within the limbic network.
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Phosphorylation Dynamics of JNK Signaling: Effects of Dual-Specificity Phosphatases (DUSPs) on the JNK Pathway. Int J Mol Sci 2019; 20:ijms20246157. [PMID: 31817617 PMCID: PMC6941053 DOI: 10.3390/ijms20246157] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/30/2019] [Accepted: 12/04/2019] [Indexed: 02/06/2023] Open
Abstract
Protein phosphorylation affects conformational change, interaction, catalytic activity, and subcellular localization of proteins. Because the post-modification of proteins regulates diverse cellular signaling pathways, the precise control of phosphorylation states is essential for maintaining cellular homeostasis. Kinases function as phosphorylating enzymes, and phosphatases dephosphorylate their target substrates, typically in a much shorter time. The c-Jun N-terminal kinase (JNK) signaling pathway, a mitogen-activated protein kinase pathway, is regulated by a cascade of kinases and in turn regulates other physiological processes, such as cell differentiation, apoptosis, neuronal functions, and embryonic development. However, the activation of the JNK pathway is also implicated in human pathologies such as cancer, neurodegenerative diseases, and inflammatory diseases. Therefore, the proper balance between activation and inactivation of the JNK pathway needs to be tightly regulated. Dual specificity phosphatases (DUSPs) regulate the magnitude and duration of signal transduction of the JNK pathway by dephosphorylating their substrates. In this review, we will discuss the dynamics of phosphorylation/dephosphorylation, the mechanism of JNK pathway regulation by DUSPs, and the new possibilities of targeting DUSPs in JNK-related diseases elucidated in recent studies.
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MicroRNA-21 deficiency attenuated atherogenesis and decreased macrophage infiltration by targeting Dusp-8. Atherosclerosis 2019; 291:78-86. [PMID: 31704554 DOI: 10.1016/j.atherosclerosis.2019.10.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 09/10/2019] [Accepted: 10/09/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIMS Atherosclerosis is a chronic inflammatory disorder mediated by macrophage activation. MicroRNA-21 (miR-21) is a key regulator in the macrophage inflammatory response. However, the functional role of miR-21 in atherogenesis is far from clear. METHODS AND RESULTS Here, we report that miR-21 is significantly upregulated in mouse atherosclerotic plaques and peripheral monocytes from patients with coronary artery disease. Compared with miR-21+/+apoE-/- mice (apoE-/- mice), miR-21-/-apoE-/- (double knockout, DKO) mice showed less atherosclerotic lesions, reduced presence of macrophages, decreased smooth muscle cells(SMC) and collagen content in the aorta. We further explored the role of miR-21 in macrophage activation in vitro. Bone marrow-derived macrophages (BMDMs) from DKO mice not only exhibit impaired function of migration induced by chemokine (C-C motif) ligand 2 (CCL2) but also a weakened macrophage-endothelium interaction activated by tumor necrosis factor-α (TNF-α). However, atherogenic inflammatory cytokine secretion was not affected by miR-21 in vitro or in vivo. Additionally, miR-21 knockdown in BMDMs directly derepressed the expression of dual specificity protein phosphatase 8 (Dusp-8), a previously validated miR-21 target in cardiac fibroblasts, which negatively regulates mitogen-activated protein kinase (MAPK) signaling, particularly the p38-and c-Jun N-terminal kinase (JNK)-related signaling pathways. CONCLUSIONS These data demonstrate that inhibition of miR-21 may restrict the formation of atherosclerotic plaques partly by regulating macrophage migration and adhesion, while, reduced SMCs and collagen content in plaques may lead to a less stable phenotype with the progression of atherosclerosis. Thus, the absence of miR-21 reduces atherosclerotic lesions but may not represent all benefit in atherosclerosis development.
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Ding T, Zhou Y, Long R, Chen C, Zhao J, Cui P, Guo M, Liang G, Xu L. DUSP8 phosphatase: structure, functions, expression regulation and the role in human diseases. Cell Biosci 2019; 9:70. [PMID: 31467668 PMCID: PMC6712826 DOI: 10.1186/s13578-019-0329-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 08/12/2019] [Indexed: 12/28/2022] Open
Abstract
Dual-specificity phosphatases (DUSPs) are a subset of protein tyrosine phosphatases (PTPs), many of which dephosphorylate the residues of phosphor-serine/threonine and phosphor-tyrosine on mitogen-activated protein kinases (MAPKs), and hence are also referred to as MAPK phosphatases (MKPs). Homologue of Vaccinia virus H1 phosphatase gene clone 5 (HVH-5), also known as DUSP8, is a unique member of the DUSPs family of phosphatases. Accumulating evidence has shown that DUSP8 plays an important role in phosphorylation-mediated signal transduction of MAPK signaling ranging from cell oxidative stress response, cell apoptosis and various human diseases. It is generally believed that DUSP8 exhibits significant dephosphorylation activity against JNK, however, with the deepening of research, plenty of new literature reports that DUSP8 also has effective dephosphorylation activity on p38 MAPK and ERKs, successfully affects the transduction of MAPKs pathway, indicating that DUSP8 presents a unknown diversity of DUSPs family on distinct corresponding dephosphorylated substrates in different biological events. Therefore, the in-depth study of DUSP8 not only throws a new light on the multi-biological function of DUSPs, but also is much valuable for the reveal of complex pathobiology of clinical diseases. In this review, we provide a detail overview of DUSP8 phosphatase structure, biological function and expression regulation, as well as its role in related clinical human diseases, which might be help for the understanding of biological function of DUSP8 and the development of prevention, diagnosis and therapeutics in related human diseases.
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Affiliation(s)
- Tao Ding
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China.,2Department of Immunology, Zunyi Medical University, Zunyi, 563000 Guizhou China
| | - Ya Zhou
- 3Department of Medical Physics, Zunyi Medical University, Zunyi, 563000 Guizhou China
| | - Runying Long
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China.,2Department of Immunology, Zunyi Medical University, Zunyi, 563000 Guizhou China
| | - Chao Chen
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China
| | - Juanjuan Zhao
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China
| | - Panpan Cui
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China
| | - Mengmeng Guo
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China
| | - Guiyou Liang
- 4Department of Cardiovascular Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004 Guizhou China.,5Department of Cardiovascular Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000 Guizhou China
| | - Lin Xu
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Zunyi, 563000 Guizhou China.,2Department of Immunology, Zunyi Medical University, Zunyi, 563000 Guizhou China
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Regulation of Dual-Specificity Phosphatase (DUSP) Ubiquitination and Protein Stability. Int J Mol Sci 2019; 20:ijms20112668. [PMID: 31151270 PMCID: PMC6600639 DOI: 10.3390/ijms20112668] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/28/2019] [Accepted: 05/29/2019] [Indexed: 12/21/2022] Open
Abstract
Mitogen-activated protein kinases (MAPKs) are key regulators of signal transduction and cell responses. Abnormalities in MAPKs are associated with multiple diseases. Dual-specificity phosphatases (DUSPs) dephosphorylate many key signaling molecules, including MAPKs, leading to the regulation of duration, magnitude, or spatiotemporal profiles of MAPK activities. Hence, DUSPs need to be properly controlled. Protein post-translational modifications, such as ubiquitination, phosphorylation, methylation, and acetylation, play important roles in the regulation of protein stability and activity. Ubiquitination is critical for controlling protein degradation, activation, and interaction. For DUSPs, ubiquitination induces degradation of eight DUSPs, namely, DUSP1, DUSP4, DUSP5, DUSP6, DUSP7, DUSP8, DUSP9, and DUSP16. In addition, protein stability of DUSP2 and DUSP10 is enhanced by phosphorylation. Methylation-induced ubiquitination of DUSP14 stimulates its phosphatase activity. In this review, we summarize the knowledge of the regulation of DUSP stability and ubiquitination through post-translational modifications.
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Ding T, Cui P, Zhou Y, Chen C, Zhao J, Wang H, Guo M, He Z, Xu L. Antisense Oligonucleotides against miR-21 Inhibit the Growth and Metastasis of Colorectal Carcinoma via the DUSP8 Pathway. MOLECULAR THERAPY. NUCLEIC ACIDS 2018; 13:244-255. [PMID: 30317164 PMCID: PMC6187053 DOI: 10.1016/j.omtn.2018.09.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 09/06/2018] [Accepted: 09/06/2018] [Indexed: 01/02/2023]
Abstract
Accumulating research has documented that microRNA-21 (miR-21) plays an important role in the development of human colorectal carcinoma (CRC). Our recent work also showed that antisense oligonucleotides (ASOs) against miR-21 can impair the growth of CRC cells in vitro. However, the potential role of miR-21 in gene therapy against CRC remains to be fully elucidated. Here, we further observed the effect of ASOs against miR-21 on the growth and metastasis of CRC in vivo using a xenograft model of human CRC. We found that ASOs could effectively inhibit the growth and metastasis of CRC in vivo, accompanied by downregulated expression of miR-21 and reduced transduction of the AKT and ERK pathway. Mechanically, global gene expression analysis showed that the expression of DUSP8, a novel target of miR-21, was upregulated in tumor mass. Furthermore, overexpression of DUSP8 could remarkably suppress the proliferation and migration of CRC cells in vitro. Finally, downregulation of DUSP8 could abrogate the effects of ASOs against miR-21 on the proliferation and migration of CRC cells, as well as altered transduction of the AKT and ERK signaling pathway. Together, these data suggest that ASOs against miRNAs are an attractive and potential therapeutic for the treatment of human CRC and warrant further development.
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Affiliation(s)
- Tao Ding
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Guizhou 563000, China; Department of Immunology, Zunyi Medical University, Guizhou 563000, China
| | - Panpan Cui
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Guizhou 563000, China; Department of Immunology, Zunyi Medical University, Guizhou 563000, China
| | - Ya Zhou
- Department of Medical Physics, Zunyi Medical University, Guizhou 563000, China
| | - Chao Chen
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Guizhou 563000, China; Department of Immunology, Zunyi Medical University, Guizhou 563000, China
| | - Juanjuan Zhao
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Guizhou 563000, China; Department of Immunology, Zunyi Medical University, Guizhou 563000, China
| | - Hairong Wang
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Guizhou 563000, China; Department of Immunology, Zunyi Medical University, Guizhou 563000, China
| | - Mengmeng Guo
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Guizhou 563000, China; Department of Immunology, Zunyi Medical University, Guizhou 563000, China
| | - Zhixu He
- Stem Cell and Tissue Engineering Research Center, Guizhou Medical University, Guizhou 550004, China
| | - Lin Xu
- Special Key Laboratory of Gene Detection and Therapy of Guizhou Province, Guizhou 563000, China; Department of Immunology, Zunyi Medical University, Guizhou 563000, China.
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JNK Signaling: Regulation and Functions Based on Complex Protein-Protein Partnerships. Microbiol Mol Biol Rev 2016; 80:793-835. [PMID: 27466283 DOI: 10.1128/mmbr.00043-14] [Citation(s) in RCA: 321] [Impact Index Per Article: 40.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The c-Jun N-terminal kinases (JNKs), as members of the mitogen-activated protein kinase (MAPK) family, mediate eukaryotic cell responses to a wide range of abiotic and biotic stress insults. JNKs also regulate important physiological processes, including neuronal functions, immunological actions, and embryonic development, via their impact on gene expression, cytoskeletal protein dynamics, and cell death/survival pathways. Although the JNK pathway has been under study for >20 years, its complexity is still perplexing, with multiple protein partners of JNKs underlying the diversity of actions. Here we review the current knowledge of JNK structure and isoforms as well as the partnerships of JNKs with a range of intracellular proteins. Many of these proteins are direct substrates of the JNKs. We analyzed almost 100 of these target proteins in detail within a framework of their classification based on their regulation by JNKs. Examples of these JNK substrates include a diverse assortment of nuclear transcription factors (Jun, ATF2, Myc, Elk1), cytoplasmic proteins involved in cytoskeleton regulation (DCX, Tau, WDR62) or vesicular transport (JIP1, JIP3), cell membrane receptors (BMPR2), and mitochondrial proteins (Mcl1, Bim). In addition, because upstream signaling components impact JNK activity, we critically assessed the involvement of signaling scaffolds and the roles of feedback mechanisms in the JNK pathway. Despite a clarification of many regulatory events in JNK-dependent signaling during the past decade, many other structural and mechanistic insights are just beginning to be revealed. These advances open new opportunities to understand the role of JNK signaling in diverse physiological and pathophysiological states.
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Liu R, van Berlo JH, York AJ, Vagnozzi RJ, Maillet M, Molkentin JD. DUSP8 Regulates Cardiac Ventricular Remodeling by Altering ERK1/2 Signaling. Circ Res 2016; 119:249-60. [PMID: 27225478 DOI: 10.1161/circresaha.115.308238] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 05/25/2016] [Indexed: 01/05/2023]
Abstract
RATIONALE Mitogen-activated protein kinase (MAPK) signaling regulates the growth response of the adult myocardium in response to increased cardiac workload or pathological insults. The dual-specificity phosphatases (DUSPs) are critical effectors, which dephosphorylate the MAPKs to control the basal tone, amplitude, and duration of MAPK signaling. OBJECTIVE To examine DUSP8 as a regulator of MAPK signaling in the heart and its impact on ventricular and cardiac myocyte growth dynamics. METHODS AND RESULTS Dusp8 gene-deleted mice and transgenic mice with inducible expression of DUSP8 in the heart were used here to investigate how this MAPK-phosphatase might regulate intracellular signaling and cardiac growth dynamics in vivo. Dusp8 gene-deleted mice were mildly hypercontractile at baseline with a cardiac phenotype of concentric ventricular remodeling, which protected them from progressing towards heart failure in 2 surgery-induced disease models. Cardiac-specific overexpression of DUSP8 produced spontaneous eccentric remodeling and ventricular dilation with heart failure. At the cellular level, adult cardiac myocytes from Dusp8 gene-deleted mice were thicker and shorter, whereas DUSP8 overexpression promoted cardiac myocyte lengthening with a loss of thickness. Mechanistically, activation of extracellular signal-regulated kinases 1/2 were selectively increased in Dusp8 gene-deleted hearts at baseline and following acute pathological stress stimulation, whereas p38 MAPK and c-Jun N-terminal kinases were mostly unaffected. CONCLUSIONS These results indicate that DUSP8 controls basal and acute stress-induced extracellular signal-regulated kinases 1/2 signaling in adult cardiac myocytes that then alters the length-width growth dynamics of individual cardiac myocytes, which further alters contractility, ventricular remodeling, and disease susceptibility.
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Affiliation(s)
- Ruijie Liu
- From the Department of Pediatrics, University of Cincinnati (R.L., J.H.v.B., A.J.Y., R.J.V., M.M., J.D.M.) and Howard Hughes Medical Institute (J.D.M.), Cincinnati Children's Hospital Medical Center, Cincinnati, OH; and Division of Cardiology, Department of Medicine, Lillehei Heart Institute, University of Minnesota, St. Paul (J.H.v.B.)
| | - Jop H van Berlo
- From the Department of Pediatrics, University of Cincinnati (R.L., J.H.v.B., A.J.Y., R.J.V., M.M., J.D.M.) and Howard Hughes Medical Institute (J.D.M.), Cincinnati Children's Hospital Medical Center, Cincinnati, OH; and Division of Cardiology, Department of Medicine, Lillehei Heart Institute, University of Minnesota, St. Paul (J.H.v.B.)
| | - Allen J York
- From the Department of Pediatrics, University of Cincinnati (R.L., J.H.v.B., A.J.Y., R.J.V., M.M., J.D.M.) and Howard Hughes Medical Institute (J.D.M.), Cincinnati Children's Hospital Medical Center, Cincinnati, OH; and Division of Cardiology, Department of Medicine, Lillehei Heart Institute, University of Minnesota, St. Paul (J.H.v.B.)
| | - Ronald J Vagnozzi
- From the Department of Pediatrics, University of Cincinnati (R.L., J.H.v.B., A.J.Y., R.J.V., M.M., J.D.M.) and Howard Hughes Medical Institute (J.D.M.), Cincinnati Children's Hospital Medical Center, Cincinnati, OH; and Division of Cardiology, Department of Medicine, Lillehei Heart Institute, University of Minnesota, St. Paul (J.H.v.B.)
| | - Marjorie Maillet
- From the Department of Pediatrics, University of Cincinnati (R.L., J.H.v.B., A.J.Y., R.J.V., M.M., J.D.M.) and Howard Hughes Medical Institute (J.D.M.), Cincinnati Children's Hospital Medical Center, Cincinnati, OH; and Division of Cardiology, Department of Medicine, Lillehei Heart Institute, University of Minnesota, St. Paul (J.H.v.B.)
| | - Jeffery D Molkentin
- From the Department of Pediatrics, University of Cincinnati (R.L., J.H.v.B., A.J.Y., R.J.V., M.M., J.D.M.) and Howard Hughes Medical Institute (J.D.M.), Cincinnati Children's Hospital Medical Center, Cincinnati, OH; and Division of Cardiology, Department of Medicine, Lillehei Heart Institute, University of Minnesota, St. Paul (J.H.v.B.).
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Liu S, Li W, Xu M, Huang H, Wang J, Chen X. Micro-RNA 21Targets dual specific phosphatase 8 to promote collagen synthesis in high glucose-treated primary cardiac fibroblasts. Can J Cardiol 2014; 30:1689-99. [PMID: 25418215 DOI: 10.1016/j.cjca.2014.07.747] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 07/30/2014] [Accepted: 07/30/2014] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Micro-RNA 21 (miR-21) has been shown to contribute to cardiac fibrosis in many diseases. In this study we investigated the role of miR-21 in excessive production of collagen in diabetic cardiomyopathy. METHODS The proliferation rate of cardiac fibroblasts was analyzed by Western blot, Cell Counting Kit-8 kit (Dojindo Molecular Technologies, Kumamoto, Japan), and Cell-Light EdU Apollo 488 In Vitro Imaging Kit (RiboBio, Guangzhou, China). Real-time polymerase chain reaction and Western blotting were conducted to determine gene expression levels. A luciferase reporter assay was used to verify the interaction between miR-21 and the 3' untranslated region (3'UTR) of dual specific phosphatase 8 (DUSP8). RESULTS Our results show that high glucose promoted the proliferation and collagen synthesis of rat cardiac fibroblasts, which was accompanied by an increase of miR-21. Gain-of-function and loss-of-function assays confirmed that miR-21 mediated this effect, suggesting the crucial role of miR-21 in diabetic cardiomyopathy. Our study also identified a direct target of miR-21, DUSP8, which regulates cell proliferation and collagen synthesis in cardiac fibroblasts through p38 and c-Jun N-terminal kinase (JNK)/stress-activated kinase (SAPK) signalling. Our results show that miR-21 bound to the 3'UTR of DUSP8 post-transcriptionally repressed its expression. In addition, enforced expression of miR-21 activated the JNK/SAPK and p38 signalling pathways. CONCLUSIONS Our study shows that miR-21 promotes high glucose-induced cardiac fibrosis through the JNK/SAPK and p38 signalling pathways by suppressing DUSP8 expression.
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Affiliation(s)
- Shulei Liu
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wenqi Li
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mingtong Xu
- Department of Endocrinology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hui Huang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jingfeng Wang
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaochao Chen
- Department of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Province Key Laboratory of Arrhythmia and Electrophysiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Zengcheng People's Hospital, Guangzhou, China.
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Lee DH, Cho S. Dual-specificity Phosphatase 8 Promotes the Degradation of the Polyglutamine Protein Ataxin-1. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.1.297] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Huang Z, Liu Y, Zhu J, Wu H, Guo J. Involvement of the dual-specificity phosphatase M3/6 in c-Jun N-terminal kinase inactivation following cerebral ischemia in the rat hippocampus. Int J Neurosci 2013; 123:802-9. [DOI: 10.3109/00207454.2013.803477] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Oehrl W, Cotsiki M, Panayotou G. Differential regulation of M3/6 (DUSP8) signaling complexes in response to arsenite-induced oxidative stress. Cell Signal 2013; 25:429-38. [DOI: 10.1016/j.cellsig.2012.11.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Revised: 11/07/2012] [Accepted: 11/08/2012] [Indexed: 11/24/2022]
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Karkali K, Panayotou G. The Drosophila DUSP Puckered is phosphorylated by JNK and p38 in response to arsenite-induced oxidative stress. Biochem Biophys Res Commun 2012; 418:301-6. [DOI: 10.1016/j.bbrc.2012.01.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Accepted: 01/05/2012] [Indexed: 01/10/2023]
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