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Cormier F, Housni S, Dumont F, Villard M, Cochand-Priollet B, Mercier-Nomé F, Perlemoine K, Bertherat J, Groussin L. NF-κB signaling activation and roles in thyroid cancers: implication of MAP3K14/NIK. Oncogenesis 2023; 12:55. [PMID: 37973791 PMCID: PMC10654696 DOI: 10.1038/s41389-023-00496-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 10/11/2023] [Accepted: 10/20/2023] [Indexed: 11/19/2023] Open
Abstract
Among follicular-derived thyroid cancers (TC), those with aggressive behavior and resistance to current treatments display poor prognosis. NF-κB signaling pathways are involved in tumor progression of various cancers. Here, we finely characterize the NF-κB pathways and their involvement in TC. By using immunoblot and gel shift assays, we demonstrated that both classical and alternative NF-κB pathways are activated in ten TC-derived cell lines, leading to activated RelA/p50 and RelB/p50 NF-κB dimers. By analyzing the RNAseq data of the large papillary thyroid carcinoma (PTC) cohort from The Cancer Genome Atlas (TCGA) project, we identified a tumor progression-related NF-κB signature in BRAFV600E mutated-PTCs. That corroborated with the role of RelA and RelB in cell migration and invasion processes that we demonstrated specifically in BRAFV600E mutated-cell lines, together with their role in the control of expression of genes implicated in invasiveness (MMP1, PLAU, LCN2 and LGALS3). We also identified NF-κB-inducing kinase (NIK) as a novel actor of the constitutive activation of the NF-κB pathways in TC-derived cell lines. Finally, its implication in invasiveness and its overexpression in PTC samples make NIK a potential therapeutic target for advanced TC treatment.
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Affiliation(s)
- Françoise Cormier
- Université Paris Cité, INSERM U1016, CNRS UMR8104, Institut Cochin, F-75014, Paris, France.
| | - Selma Housni
- Université Paris Cité, INSERM U1016, CNRS UMR8104, Institut Cochin, F-75014, Paris, France
- Service de Médecine Nucléaire, Assistance Publique-Hopitaux de Paris, Hopital Pitié-Salpêtrière, F-75013, Paris, France
| | - Florent Dumont
- Université Paris Cité, INSERM U1016, CNRS UMR8104, Institut Cochin, F-75014, Paris, France
- UMS IPSIT, Université Paris-Saclay, INSERM, CNRS, F-91400, Orsay, France
| | - Mélodie Villard
- Université Paris Cité, INSERM U1016, CNRS UMR8104, Institut Cochin, F-75014, Paris, France
| | - Béatrix Cochand-Priollet
- Service de Pathologie, Assistance Publique-Hopitaux de Paris, Hopital Cochin, Université Paris Cité, F-75014, Paris, France
| | | | - Karine Perlemoine
- Université Paris Cité, INSERM U1016, CNRS UMR8104, Institut Cochin, F-75014, Paris, France
| | - Jérôme Bertherat
- Université Paris Cité, INSERM U1016, CNRS UMR8104, Institut Cochin, F-75014, Paris, France
- Service d'Endocrinologie, Cochin AP-HP Centre, F-75014, Paris, France
| | - Lionel Groussin
- Université Paris Cité, INSERM U1016, CNRS UMR8104, Institut Cochin, F-75014, Paris, France
- Service d'Endocrinologie, Cochin AP-HP Centre, F-75014, Paris, France
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2
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Boonruang K, Kim I, Kwag C, Ryu J, Baek SJ. Quercetin induces dual specificity phosphatase 5 via serum response factor. BMB Rep 2023; 56:508-513. [PMID: 37291053 PMCID: PMC10547973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/09/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023] Open
Abstract
The phytochemical quercetin has gained attention for its antiinflammatory and anti-tumorigenic properties in various types of cancer. Tumorigenesis involves the aberrant regulation of kinase/phosphatase, highlighting the importance of maintaining homeostasis. Dual Specificity Phosphatase (DUSP) plays a crucial role in controlling the phosphorylation of ERK. The current study aimed to clone the DUSP5 promoter, and investigate its transcriptional activity in the presence of quercetin. The results revealed that quercetin-induced DUSP5 expression is associated with the serum response factor (SRF) binding site located in the DUSP5 promoter. The deletion of this site abolished the luciferase activity induced by quercetin, indicating its vital role in quercetin-induced DUSP5 expression. SRF protein is a transcription factor that potentially contributes to quercetin-induced DUSP5 expression at the transcriptional level. Additionally, quercetin enhanced SRF binding activity without changing its expression. These findings provide evidence of how quercetin affects anti-cancer activity in colorectal tumorigenesis by inducing SRF transcription factor activity, thereby increasing DUSP5 expression at the transcriptional level. This study highlights the importance of investigating the molecular mechanisms underlying the anti-cancer properties of quercetin, and suggests its potential use in cancer therapy. [BMB Reports 2023; 56(9): 508-513].
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Affiliation(s)
- Kanokkan Boonruang
- College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
| | - Ilju Kim
- College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
| | - Chaeyoung Kwag
- College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
| | - Junsun Ryu
- Department of Otolaryngology-Head and Neck Surgery, Center for Thyroid Cancer, Research Institute and Hospital, National Cancer Center, Goyang 10408, Korea
| | - Seung Joon Baek
- College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
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3
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Ballester Roig MN, Roy PG, Hannou L, Delignat-Lavaud B, Sully Guerrier TA, Bélanger-Nelson E, Dufort-Gervais J, Mongrain V. Transcriptional regulation of the mouse EphA4, Ephrin-B2 and Ephrin-A3 genes by the circadian clock machinery. Chronobiol Int 2023; 40:983-1003. [PMID: 37551686 DOI: 10.1080/07420528.2023.2237580] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 08/09/2023]
Abstract
Circadian rhythms originate from molecular feedback loops. In mammals, the transcription factors CLOCK and BMAL1 act on regulatory elements (i.e. E-boxes) to shape biological functions in a rhythmic manner. The EPHA4 receptor and its ligands Ephrins (EFN) are cell adhesion molecules regulating neurotransmission and neuronal morphology. Previous studies showed the presence of E-boxes in the genes of EphA4 and specific Ephrins, and that EphA4 knockout mice have an altered circadian rhythm of locomotor activity. We thus hypothesized that the core clock machinery regulates the gene expression of EphA4, EfnB2 and EfnA3. CLOCK and BMAL1 (or NPAS2 and BMAL2) were found to have transcriptional activity on distal and proximal regions of EphA4, EfnB2 and EfnA3 putative promoters. A constitutively active form of glycogen synthase kinase 3β (GSK3β; a negative regulator of CLOCK and BMAL1) blocked the transcriptional induction. Mutating the E-boxes of EphA4 distal promoter sequence reduced transcriptional induction. EPHA4 and EFNB2 protein levels did not show circadian variations in the mouse suprachiasmatic nucleus or prefrontal cortex. The findings uncover that core circadian transcription factors can regulate the gene expression of elements of the Eph/Ephrin system, which might contribute to circadian rhythmicity in biological processes in the brain or peripheral tissues.
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Affiliation(s)
- Maria Neus Ballester Roig
- Department of Neuroscience, Université de Montréal, Montreal, Quebec, Canada
- Centre de Recherche du CHUM, Montreal, Quebec, Canada
- Recherche CIUSSS-NIM, Montreal, Quebec, Canada
| | - Pierre-Gabriel Roy
- Department of Neuroscience, Université de Montréal, Montreal, Quebec, Canada
- Recherche CIUSSS-NIM, Montreal, Quebec, Canada
- Department of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | | | | | | | | | | | - Valérie Mongrain
- Department of Neuroscience, Université de Montréal, Montreal, Quebec, Canada
- Centre de Recherche du CHUM, Montreal, Quebec, Canada
- Recherche CIUSSS-NIM, Montreal, Quebec, Canada
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4
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Al-Hawary SIS, Pallathadka H, Hjazi A, Zhumanov ZE, Alazbjee AAA, Imad S, Alsalamy A, Hussien BM, Jaafer NS, Mahmoudi R. ETS transcription factor ELK3 in human cancers: An emerging therapeutic target. Pathol Res Pract 2023; 248:154728. [PMID: 37542863 DOI: 10.1016/j.prp.2023.154728] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 07/26/2023] [Accepted: 07/29/2023] [Indexed: 08/07/2023]
Abstract
Cancer is a genetic and complex disorder, resulting from several events associated with onset, development, and metastasis. Tumor suppressors and oncogenes are among the main regulators of tumor progression, contributing to various cancer-related behaviors like cell proliferation, invasion, migration, epithelial-mesenchymal transition (EMT), cell cycle, and apoptosis. Transcription factors (TFs) could act as tumor suppressors or oncogenes in cancer progression. E-twenty-six/E26 (ETS) family of TFs have a winged helix-turn-helix (HLH) motif, which interacted with specific DNA regions with high levels of purines and GGA core. ETS proteins act as transcriptional repressors or activators to modulate the expression of target genes. ETS transcription factor ELK3 (ELK3), as a type of ETS protein, was shown to enhance in various cancers, suggesting that it may have an oncogenic role. These studies indicated that ELK3 promoted invasion, migration, cell cycle, proliferation, and EMT, and suppressed cell apoptosis. In addition, these studies demonstrated that ELK3 could be a promising diagnostic and prognostic biomarker in human cancer. Moreover, accumulating data proved that ELK3 could be a novel chemoresistance mediator in human cancer. Here, we aimed to explore the overall change of ELK3 and its underlying molecular mechanism in human cancers. Moreover, we aimed to investigate the potential role of ELK3 as a prognostic and diagnostic biomarker as well as its capability as a chemoresistance mediator in cancer.
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Affiliation(s)
| | | | - Ahmed Hjazi
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Ziyadulla Eshmamatovich Zhumanov
- Department of Pathological Anatomy, With a Section-biopsy Course, Samarkand State Medical Institute, Amir Temur Street 18, Samarkand, Uzbekistan; Department of Scientific Affairs, Tashkent State Dental Institute, Makhtumkuli Street 103, Tashkent 100047, Uzbekistan
| | | | - Shad Imad
- Medical Technical College, Al-Farahidi University, Baghdad, Iraq
| | - Ali Alsalamy
- College of Technical Engineering, Imam Ja'afar Al-Sadiq University, Al-Muthanna 66002, Iraq
| | - Beneen M Hussien
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Noor Sadiq Jaafer
- Department of Medical Laboratory Technologies, Al Rafidain University College, Bagdad, Iraq
| | - Reza Mahmoudi
- Department of Toxicology and Pharmacology, School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
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5
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Ni R, Liu H, Song G, Fu X, Deng B, Xu Z, Dai S, Huang G. MiR-216a-3p inhibits the proliferation and invasion of fibroblast-like synoviocytes by targeting dual-specificity phosphatase 5. Int J Rheum Dis 2023; 26:699-709. [PMID: 36843205 DOI: 10.1111/1756-185x.14622] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/25/2023] [Accepted: 02/06/2023] [Indexed: 02/28/2023]
Abstract
Dual-specificity phosphatase 5 (DUSP5) is a novel anti-inflammatory modulator in many inflammatory diseases. However, the role of DUSP5 in fibroblast-like synoviocytes (FLS) of rheumatoid arthritis (RA) remains unknown. In this study, we aimed to explore the biological function and regulation of DUSP5 in FLS. We found that lower DUSP5 expression level was detected in collagen-induced arthritis (CIA) and synoviocyte MH7A. Overexpression of DUSP5 markedly decreased the proliferation, migration, and invasion of MH7A, which correlated with suppressing the phosphorylation of extracellular signal-regulated kinase (ERK). Moreover, DUSP5 was identified as a novel target gene of miR-216a-3p, which was upregulated in FLS. Therefore, DUSP5 expression was negatively regulated by miR-216a-3p, and the effect of DUSP5 overexpression on FLS was reversed by miR-216a-3p mimics. Overall, our study demonstrates that DUSP5 is a miR-216a-3p target gene and its anti-inflammatory function in FLS via inactivation of ERK. These results revealed that the miR-216a-3p/DUSP5 pathway may play a crucial role in the malignant behavior of FLS, which may serve as a new target for the treatment of RA.
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Affiliation(s)
- Rongrong Ni
- Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Army Medical University, Chongqing, China
| | - Heting Liu
- Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Army Medical University, Chongqing, China
| | - Guojing Song
- Urology, Southwest Hospital, Army Medical University, Chongqing, China
| | - Xiaohong Fu
- Office of Academic Research, Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Bingqian Deng
- Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Army Medical University, Chongqing, China
| | - Zhizhen Xu
- Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Army Medical University, Chongqing, China
| | - Shuangshuang Dai
- Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Army Medical University, Chongqing, China
| | - Gang Huang
- Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Army Medical University, Chongqing, China
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6
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Bogush N, Tan L, Naqvi E, Calvert JW, Graham RM, Taylor WR, Naqvi N, Husain A. Remuscularization with triiodothyronine and β 1-blocker therapy reverses post-ischemic left ventricular dysfunction and adverse remodeling. Sci Rep 2022; 12:8852. [PMID: 35614155 PMCID: PMC9132945 DOI: 10.1038/s41598-022-12723-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/09/2022] [Indexed: 11/19/2022] Open
Abstract
Renewal of the myocardium by preexisting cardiomyocytes is a powerful strategy for restoring the architecture and function of hearts injured by myocardial infarction. To advance this strategy, we show that combining two clinically approved drugs, but neither alone, muscularizes the heart through cardiomyocyte proliferation. Specifically, in adult murine cardiomyocytes, metoprolol, a cardioselective β1-adrenergic receptor blocker, when given with triiodothyronine (T3, a thyroid hormone) accentuates the ability of T3 to stimulate ERK1/2 phosphorylation and proliferative signaling by inhibiting expression of the nuclear phospho-ERK1/2-specific phosphatase, dual-specificity phosphatase-5. While short-duration metoprolol plus T3 therapy generates new heart muscle in healthy mice, in mice with myocardial infarction-induced left ventricular dysfunction and pathological remodeling, it remuscularizes the heart, restores contractile function and reverses chamber dilatation; outcomes that are enduring. If the beneficial effects of metoprolol plus T3 are replicated in humans, this therapeutic strategy has the potential to definitively address ischemic heart failure.
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Affiliation(s)
- Nikolay Bogush
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, 3311 WMRB, 323 WMRB, 101 Woodruff Circle, Atlanta, GA, 30322, USA
| | - Lin Tan
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, 3311 WMRB, 323 WMRB, 101 Woodruff Circle, Atlanta, GA, 30322, USA
| | - Emmen Naqvi
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, 3311 WMRB, 323 WMRB, 101 Woodruff Circle, Atlanta, GA, 30322, USA
| | - John W Calvert
- Department of Surgery, Carlyle Fraser Heart Center, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Robert M Graham
- Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia
| | - W Robert Taylor
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, 3311 WMRB, 323 WMRB, 101 Woodruff Circle, Atlanta, GA, 30322, USA
- Cardiology Division, Atlanta Veterans Affairs Medical Center, Decatur, GA, 30033, USA
- Department of Biomedical Engineering, Emory University School of Medicine and Georgia Institute of Technology, Atlanta, GA, 30322, USA
| | - Nawazish Naqvi
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, 3311 WMRB, 323 WMRB, 101 Woodruff Circle, Atlanta, GA, 30322, USA.
| | - Ahsan Husain
- Division of Cardiology, Department of Medicine, Emory University School of Medicine, 3311 WMRB, 323 WMRB, 101 Woodruff Circle, Atlanta, GA, 30322, USA.
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7
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Wang B, Xu Z, Wang X, Xia S, Cai P, Wang M, Gao Z. Knockdown of lncRNA LINC00662 suppresses malignant behaviour of osteosarcoma cells via competition with miR-30b-3p to regulate ELK1 expression. J Orthop Surg Res 2022; 17:74. [PMID: 35123530 PMCID: PMC8818160 DOI: 10.1186/s13018-022-02964-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 01/25/2022] [Indexed: 12/27/2022] Open
Abstract
Purpose Osteosarcoma is a type of bone malignancy that mainly occurred in teenagers. This investigation is aimed to clarify the effect of long non-coding RNA (lncRNA) LINC00662 on the proliferation, migration, and invasion in osteosarcoma and explore the underlying action mechanisms. Methods The mRNA expression of LINC00662 was determined by real-time quantitative polymerase chain reaction. Cell proliferation, migration, and invasion were evaluated by 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, wound healing, and transwell assays, respectively. A dual-luciferase reporter assay was used to validate the target relationships Between microRNA (miR)-30b-3p and LINC00662/ ETS domain-containing protein 1 (ELK1). Western blotting was performed to determine the protein expression of ELK1. Xenograft model was established to evaluate the effects of LINC00662 silencing on tumor growth in vivo. Results LncRNA LINC00662 and ELK1 were significantly increased, while miR-30b-3p was reduced in osteosarcoma tissues. The results of functional experiments indicated that transfection of small hairpin (sh)-LINC00662 and miR-30b-3p mimics repressed the migration, invasion, and proliferation of osteosarcoma cells. LncRNA LINC00662 also appeared to sponge miR-30b-3p in order to affect the expression of ELK1. Simultaneously, there were weak negative correlations between the expression of miR-30b-3p and LINC00662/ELK1 in osteosarcoma tissues. Rescue experiments suggested that ELK1 overexpression and downregulation of miR-30b-3p reversed the suppressive effects of sh-LINC00662 on the cell migration, invasion, and proliferation in osteosarcoma. Conclusions The current study indicated that knockdown of LINC00662 repressed cell migration, invasion, and proliferation through sponging miR-30b-3p to regulate the expression of ELK1 in osteosarcoma. These results may uncover a promising target for the treatment of osteosarcoma.
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Gém JB, Kovács KB, Szalai L, Szakadáti G, Porkoláb E, Szalai B, Turu G, Tóth AD, Szekeres M, Hunyady L, Balla A. Characterization of Type 1 Angiotensin II Receptor Activation Induced Dual-Specificity MAPK Phosphatase Gene Expression Changes in Rat Vascular Smooth Muscle Cells. Cells 2021; 10:3538. [PMID: 34944046 PMCID: PMC8700539 DOI: 10.3390/cells10123538] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/09/2021] [Accepted: 12/10/2021] [Indexed: 01/03/2023] Open
Abstract
Activation of the type I angiotensin receptor (AT1-R) in vascular smooth muscle cells (VSMCs) plays a crucial role in the regulation of blood pressure; however, it is also responsible for the development of pathological conditions such as vascular remodeling, hypertension and atherosclerosis. Stimulation of the VSMC by angiotensin II (AngII) promotes a broad variety of biological effects, including gene expression changes. In this paper, we have taken an integrated approach in which an analysis of AngII-induced gene expression changes has been combined with the use of small-molecule inhibitors and lentiviral-based gene silencing, to characterize the mechanism of signal transduction in response to AngII stimulation in primary rat VSMCs. We carried out Affymetrix GeneChip experiments to analyze the effects of AngII stimulation on gene expression; several genes, including DUSP5, DUSP6, and DUSP10, were identified as upregulated genes in response to stimulation. Since various dual-specificity MAPK phosphatase (DUSP) enzymes are important in the regulation of mitogen-activated protein kinase (MAPK) signaling pathways, these genes have been selected for further analysis. We investigated the kinetics of gene-expression changes and the possible signal transduction processes that lead to altered expression changes after AngII stimulation. Our data shows that the upregulated genes can be stimulated through multiple and synergistic signal transduction pathways. We have also found in our gene-silencing experiments that epidermal growth factor receptor (EGFR) transactivation is not critical in the AngII-induced expression changes of the investigated genes. Our data can help us understand the details of AngII-induced long-term effects and the pathophysiology of AT1-R. Moreover, it can help to develop potential interventions for those symptoms that are induced by the over-functioning of this receptor, such as vascular remodeling, cardiac hypertrophy or atherosclerosis.
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Affiliation(s)
- Janka Borbála Gém
- Department of Physiology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary; (J.B.G.); (K.B.K.); (L.S.); (G.S.); (E.P.); (B.S.); (G.T.); (A.D.T.); (M.S.)
| | - Kinga Bernadett Kovács
- Department of Physiology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary; (J.B.G.); (K.B.K.); (L.S.); (G.S.); (E.P.); (B.S.); (G.T.); (A.D.T.); (M.S.)
| | - Laura Szalai
- Department of Physiology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary; (J.B.G.); (K.B.K.); (L.S.); (G.S.); (E.P.); (B.S.); (G.T.); (A.D.T.); (M.S.)
- MTA-SE Laboratory of Molecular Physiology, Hungarian Academy of Sciences and Semmelweis University, 1085 Budapest, Hungary
| | - Gyöngyi Szakadáti
- Department of Physiology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary; (J.B.G.); (K.B.K.); (L.S.); (G.S.); (E.P.); (B.S.); (G.T.); (A.D.T.); (M.S.)
| | - Edit Porkoláb
- Department of Physiology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary; (J.B.G.); (K.B.K.); (L.S.); (G.S.); (E.P.); (B.S.); (G.T.); (A.D.T.); (M.S.)
- MTA-SE Laboratory of Molecular Physiology, Hungarian Academy of Sciences and Semmelweis University, 1085 Budapest, Hungary
| | - Bence Szalai
- Department of Physiology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary; (J.B.G.); (K.B.K.); (L.S.); (G.S.); (E.P.); (B.S.); (G.T.); (A.D.T.); (M.S.)
| | - Gábor Turu
- Department of Physiology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary; (J.B.G.); (K.B.K.); (L.S.); (G.S.); (E.P.); (B.S.); (G.T.); (A.D.T.); (M.S.)
- MTA-SE Laboratory of Molecular Physiology, Hungarian Academy of Sciences and Semmelweis University, 1085 Budapest, Hungary
| | - András Dávid Tóth
- Department of Physiology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary; (J.B.G.); (K.B.K.); (L.S.); (G.S.); (E.P.); (B.S.); (G.T.); (A.D.T.); (M.S.)
- MTA-SE Laboratory of Molecular Physiology, Hungarian Academy of Sciences and Semmelweis University, 1085 Budapest, Hungary
- Department of Internal Medicine and Hematology, Semmelweis University, 1085 Budapest, Hungary
| | - Mária Szekeres
- Department of Physiology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary; (J.B.G.); (K.B.K.); (L.S.); (G.S.); (E.P.); (B.S.); (G.T.); (A.D.T.); (M.S.)
- Department of Morphology and Physiology, Faculty of Health Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - László Hunyady
- Department of Physiology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary; (J.B.G.); (K.B.K.); (L.S.); (G.S.); (E.P.); (B.S.); (G.T.); (A.D.T.); (M.S.)
- MTA-SE Laboratory of Molecular Physiology, Hungarian Academy of Sciences and Semmelweis University, 1085 Budapest, Hungary
| | - András Balla
- Department of Physiology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary; (J.B.G.); (K.B.K.); (L.S.); (G.S.); (E.P.); (B.S.); (G.T.); (A.D.T.); (M.S.)
- MTA-SE Laboratory of Molecular Physiology, Hungarian Academy of Sciences and Semmelweis University, 1085 Budapest, Hungary
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Irinotecan (CPT-11) Canonical Anti-Cancer Drug Can also Modulate Antiviral and Pro-Inflammatory Responses of Primary Human Synovial Fibroblasts. Cells 2021; 10:cells10061431. [PMID: 34201243 PMCID: PMC8230279 DOI: 10.3390/cells10061431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/21/2021] [Accepted: 05/24/2021] [Indexed: 11/29/2022] Open
Abstract
Alphaviruses are a group of arboviruses that generate chronic inflammatory rheumatisms in humans. Currently, no approved vaccines or antiviral therapies are available to prevent or treat alphavirus-induced diseases. The aim of this study was to evaluate the repositioning of the anti-cancer molecule irinotecan as a potential modulator of the antiviral and inflammatory responses of primary human synovial fibroblasts (HSF), the main stromal cells of the joint synovium. HSF were exposed to O’nyong-nyong virus (ONNV) and polyinosinic-polycytidylic acid (PIC) to mimic, respectively, acute and chronic infectious settings. The cytokine IL-1β was used as a major pro-inflammatory cytokine to stimulate HSF. Quantitative RT-PCR analysis revealed that irinotecan at 15 µM was able to amplify the antiviral response (i.e., interferon-stimulated gene expression) of HSF exposed to PIC and reduce the expression of pro-inflammatory genes (CXCL8, IL-6 and COX-2) upon IL-1β treatment. These results were associated with the regulation of the expression of several genes, including those encoding for STAT1, STAT2, p53 and NF-κB. Irinotecan did not modulate these responses in both untreated cells and cells stimulated with ONNV. This suggests that this drug could be therapeutically useful for the treatment of chronic and severe (rather than acute) arthritis due to viruses.
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Elghobashy YA, Assar MFA, Mahmoud AA, Monem A Eltorgoman A, Elmasry S. The relation between mitogen activated protein kinase (MAPK) pathway and different genes expression in patients with beta Thalassemia. Biochem Biophys Rep 2020; 24:100836. [PMID: 33195827 PMCID: PMC7644576 DOI: 10.1016/j.bbrep.2020.100836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/07/2020] [Accepted: 10/09/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND β-thalassemia is an inherited hemoglobinopathy resulting in quantitative changes in the β-globin chain. Understanding the molecular basis of that disorder requires studying the expression of genes controlling the pathways that affect the erythropoietic homeostasis especially the MAPK pathway. The MAPKs are a family of serine/threonine kinases that play an essential role in connecting cell-surface receptors to DNA in the nucleus of the cell. AIM to study the effect of expression of GNAI2, DUSP5 and ARRB1 genes on MAPK signaling pathway in pediatric patients with beta thalassemia. METHODS Forty children with beta thalassemia major (TM), forty children with beta thalassemia intermedia (TI) and forty age and gender matched healthy controls were enrolled in this study. Detection of GNAI2, DUSP5 and ARRB1 mRNA expression was done by real time polymerase chain reaction (RT-PCR). RESULTS revealed increased expression of ARRB1 (Arrestin Beta 1) gene, and decreased expression of both GNAI2 (Guanine nucleotide-binding protein G (i) subunit alpha-2) and DUSP5 (Dual specificity protein phosphatase 5) genes in both patient groups than control groups respectively. CONCLUSIONS Change in the rate of expression of ARRB1, GNAI2 and DUSP5 may have a role in the pathogenesis of abnormal hematopoiesis in cases of β thalassemia through affecting the MAPK pathway.
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Affiliation(s)
- Yasser AbdElsattar Elghobashy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Menoufia University, Shebin Elkom, Egypt
| | - Mohamed FA. Assar
- Biochemistry Division of Chemistry Department, Faculty of Science, Menoufia University, Shebin Elkom, Egypt
| | - Asmaa A. Mahmoud
- Department of Pediatrics, Faculty of Medicine, Menoufia University, Shebin Elkom, Egypt
| | | | - Saher Elmasry
- Biochemistry Division of Chemistry Department, Faculty of Science, Menoufia University, Shebin Elkom, Egypt
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11
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Endoplasmic Reticulum Stress Increases DUSP5 Expression via PERK-CHOP Pathway, Leading to Hepatocyte Death. Int J Mol Sci 2019; 20:ijms20184369. [PMID: 31491992 PMCID: PMC6770509 DOI: 10.3390/ijms20184369] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/03/2019] [Accepted: 09/03/2019] [Indexed: 02/06/2023] Open
Abstract
Hepatocyte death is critical for the pathogenesis of liver disease progression, which is closely associated with endoplasmic reticulum (ER) stress responses. However, the molecular basis for ER stress-mediated hepatocyte injury remains largely unknown. This study investigated the effect of ER stress on dual-specificity phosphatase 5 (DUSP5) expression and its role in hepatocyte death. Analysis of Gene Expression Omnibus (GEO) database showed that hepatic DUSP5 levels increased in the patients with liver fibrosis, which was verified in mouse models of liver diseases with ER stress. DUSP5 expression was elevated in both fibrotic and acutely injured liver of mice treated with liver toxicants. Treatment of ER stress inducers enhanced DUSP5 expression in hepatocytes, which was validated in vivo condition. The induction of DUSP5 by ER stress was blocked by either treatment with a chemical inhibitor of the protein kinase RNA-like endoplasmic reticulum kinase (PERK) pathway, or knockdown of C/EBP homologous protein (CHOP), whereas it was not affected by the silencing of IRE1 or ATF6. In addition, DUSP5 overexpression decreased extracellular-signal-regulated kinase (ERK) phosphorylation, but increased cleaved caspase-3 levels. Moreover, the reduction of cell viability under ER stress condition was attenuated by DUSP5 knockdown. In conclusion, DUSP5 expression is elevated in hepatocytes by ER stress through the PERK-CHOP pathway, contributing to hepatocyte death possibly through ERK inhibition.
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12
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Ogishima J, Taguchi A, Kawata A, Kawana K, Yoshida M, Yoshimatsu Y, Sato M, Nakamura H, Kawata Y, Nishijima A, Fujimoto A, Tomio K, Adachi K, Nagamatsu T, Oda K, Kiyono T, Osuga Y, Fujii T. The oncogene KRAS promotes cancer cell dissemination by stabilizing spheroid formation via the MEK pathway. BMC Cancer 2018; 18:1201. [PMID: 30509235 PMCID: PMC6278087 DOI: 10.1186/s12885-018-4922-4] [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: 12/17/2017] [Accepted: 10/09/2018] [Indexed: 12/30/2022] Open
Abstract
Background Peritoneal dissemination is a critical prognostic factor in ovarian cancer. Although stabilized spheroid formation promotes cancer cell peritoneal dissemination in ovarian cancer, the associated oncogenes are unknown. In this study, we assessed the role of the KRAS oncogene in ovarian cancer cell dissemination, focusing on the stability of cells in spheroid condition, as well as the modulation of intracellular signaling following spheroid transformation. Methods We used ID8, a murine ovarian cancer cell line, and ID8-KRAS, an oncogenic KRAS (G12 V)-transduced ID8 cell line in this study. Spheroid-forming (3D) culture and cell proliferation assays were performed to evaluate the growth characteristics of these cells. cDNA microarray analysis was performed to identify genes involved in KRAS-associated signal transduction in floating condition. A MEK inhibitor was used to evaluate the effect on cancer peritoneal dissemination. Results Cell viability and proliferation in monolayer (2D) cultures did not differ between ID8 and ID8-KRAS cells. However, the proportions of viable and proliferating ID8-KRAS cells in 3D culture were approximately 2-fold and 5-fold higher than that of ID8, respectively. Spheroid-formation was increased in ID8-KRAS cells. Analysis of peritoneal floating cells obtained from mice intra-peritoneally injected with cancer cells revealed that the proportion of proliferating cancer cells was approximately 2-fold higher with ID8-KRAS than with ID8 cells. Comprehensive cDNA microarray analysis revealed that pathways related to cell proliferation, and cell cycle checkpoint and regulation were upregulated specifically in ID8-KRAS cells in 3D culture, and that some genes partially regulated by the MEK-ERK pathway were upregulated only in ID8-KRAS cells in 3D culture. Furthermore, a MEK inhibitor, trametinib, suppressed spheroid formation in 3D culture of ID8-KRAS cells, although trametinib did not affect 2D-culture cell proliferation. Finally, we demonstrated that trametinib dramatically improved the prognosis for mice with ID8-KRAS tumors in an in vivo mouse model. Conclusions Our data indicated that KRAS promoted ovarian cancer dissemination by stabilizing spheroid formation and that the MEK pathway is important for stabilized spheroid formation. Disruption of spheroid formation by a MEK inhibitor could be a therapeutic target for cancer peritoneal dissemination. Electronic supplementary material The online version of this article (10.1186/s12885-018-4922-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Juri Ogishima
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Ayumi Taguchi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Akira Kawata
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kei Kawana
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Nihon University, 30-1 Otaniguchi Uemachi, Itabashi-ku, Tokyo, 173-8610, Japan.
| | - Mitsuyo Yoshida
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yuki Yoshimatsu
- Division of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Masakazu Sato
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Hiroe Nakamura
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yoshiko Kawata
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Akira Nishijima
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Asaha Fujimoto
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kensuke Tomio
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Katsuyuki Adachi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takeshi Nagamatsu
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Katsutoshi Oda
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tohru Kiyono
- Division of Carcinogenesis and Cancer Prevention, National Cancer Center Research Institute, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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Wang R, Bao HB, Du WZ, Chen XF, Liu HL, Han DY, Wang LG, Wu JN, Wang CL, Yang MC, Liu ZW, Zhang N, Teng L. P68 RNA helicase promotes invasion of glioma cells through negatively regulating DUSP5. Cancer Sci 2018; 110:107-117. [PMID: 30387548 PMCID: PMC6317933 DOI: 10.1111/cas.13858] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 10/29/2018] [Accepted: 10/30/2018] [Indexed: 12/30/2022] Open
Abstract
Gliomas are the most common central nervous system tumors. They show malignant characteristics indicating rapid proliferation and a high invasive capacity and are associated with a poor prognosis. In our previous study, p68 was overexpressed in glioma cells and correlated with both the degree of glioma differentiation and poor overall survival. Downregulating p68 significantly suppressed proliferation in glioma cells. Moreover, we found that the p68 gene promoted glioma cell growth by activating the nuclear factor‐κB signaling pathway by a downstream molecular mechanism that remains incompletely understood. In this study, we found that dual specificity phosphatase 5 (DUSP5) is a downstream target of p68, using microarray analysis, and that p68 negatively regulates DUSP5. Upregulating DUSP5 in stably expressing cell lines (U87 and LN‐229) suppressed proliferation, invasion, and migration in glioma cells in vitro, consistent with the downregulation of p68. Furthermore, upregulating DUSP5 inhibited ERK phosphorylation, whereas downregulating DUSP5 rescued the level of ERK phosphorylation, indicating that DUSP5 might negatively regulate ERK signaling. Additionally, we show that DUSP5 levels were lower in high‐grade glioma than in low‐grade glioma. These results suggest that the p68‐induced negative regulation of DUSP5 promoted invasion by glioma cells and mediated the activation of the ERK signaling pathway.
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Affiliation(s)
- Rui Wang
- Department of Neurology, The Second Clinical College of Harbin Medical University, Harbin, China
| | - Hong-Bo Bao
- Department of Neurosurgery, Cancer Hospital of Harbin Medical University, Harbin, China
| | - Wen-Zhong Du
- Department of Neurosurgery, The First Clinical College of Harbin Medical University, Harbin, China
| | - Xiao-Feng Chen
- Department of Neurosurgery, The First Clinical College of Harbin Medical University, Harbin, China
| | - Huai-Lei Liu
- Department of Neurosurgery, The First Clinical College of Harbin Medical University, Harbin, China
| | - Da-Yong Han
- Department of Neurosurgery, The First Clinical College of Harbin Medical University, Harbin, China
| | - Li-Gang Wang
- Department of Neurosurgery, The First Clinical College of Harbin Medical University, Harbin, China
| | - Jia-Ning Wu
- Department of Neurosurgery, The First Clinical College of Harbin Medical University, Harbin, China
| | - Chun-Lei Wang
- Department of Neurosurgery, The First Clinical College of Harbin Medical University, Harbin, China
| | - Ming-Chun Yang
- Department of Neurosurgery, The First Clinical College of Harbin Medical University, Harbin, China
| | - Zhan-Wen Liu
- Department of Neurosurgery, The First Clinical College of Harbin Medical University, Harbin, China
| | - Na Zhang
- Department of Laboratory Diagnostics, The First Clinical College of Harbin Medical University, Harbin, China
| | - Lei Teng
- Department of Neurosurgery, The First Clinical College of Harbin Medical University, Harbin, China
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14
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DUSP5 expression associates with poor prognosis in human neuroblastoma. Exp Mol Pathol 2018; 105:272-278. [DOI: 10.1016/j.yexmp.2018.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/23/2018] [Accepted: 08/24/2018] [Indexed: 02/06/2023]
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15
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Schmidt C, Berger T, Groettrup M, Basler M. Immunoproteasome Inhibition Impairs T and B Cell Activation by Restraining ERK Signaling and Proteostasis. Front Immunol 2018; 9:2386. [PMID: 30416500 PMCID: PMC6212513 DOI: 10.3389/fimmu.2018.02386] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 09/26/2018] [Indexed: 12/19/2022] Open
Abstract
Immunoproteasome (IP) inhibition holds potential as a novel treatment option for various immune-mediated pathologies. The IP inhibitor ONX 0914 reduced T cell cytokine secretion and Th17 polarization and showed pre-clinical efficacy in a range of autoimmune disorders, transplant-allograft rejection, virus-mediated tissue damage, and colon cancer progression. However, the molecular basis of these effects has remained largely elusive. Here, we have analyzed the effects of ONX 0914 in primary human and mouse lymphocytes. ONX 0914-treatment impaired primary T cell activation in vitro and in vivo. IP inhibition reduced ERK-phosphorylation sustainment, while leaving NF-κB and other signaling pathways unaffected. Naïve T and B cells expressed nearly exclusively immuno- or mixed proteasomes but no standard proteasomes and IP inhibition but not IP-deficiency induced mild proteostasis stress, reduced DUSP5 expression and enhanced DUSP6 protein levels due to impaired degradation. However, accumulation of DUSP6 did not cause the reduced ERK-phosphorylation in a non-redundant manner. We show that broad-spectrum proteasome inhibition and immunoproteasome inhibition have distinct effects on T cell activation at the molecular level. Notably, ONX 0914-treated T cells recovered from proteostasis stress without apoptosis induction, apparently via Nrf1-mediated up-regulation of standard proteasomes. In contrast, B cells were more susceptible to apoptosis after ONX 0914-treatment. Our data thus provide mechanistic insights how IP inhibition functionally impedes T and B cells likely accounting for its therapeutic benefits.
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Affiliation(s)
- Christian Schmidt
- Chair of Immunology, Department of Biology, University of Konstanz, Konstanz, Germany.,Konstanz Research School Chemical Biology, University of Konstanz, Konstanz, Germany
| | - Thilo Berger
- Chair of Immunology, Department of Biology, University of Konstanz, Konstanz, Germany
| | - Marcus Groettrup
- Chair of Immunology, Department of Biology, University of Konstanz, Konstanz, Germany.,Konstanz Research School Chemical Biology, University of Konstanz, Konstanz, Germany.,Biotechnology Institute Thurgau at the University of Konstanz, Kreuzlingen, Switzerland
| | - Michael Basler
- Chair of Immunology, Department of Biology, University of Konstanz, Konstanz, Germany.,Konstanz Research School Chemical Biology, University of Konstanz, Konstanz, Germany.,Biotechnology Institute Thurgau at the University of Konstanz, Kreuzlingen, Switzerland
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16
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Seternes OM, Kidger AM, Keyse SM. Dual-specificity MAP kinase phosphatases in health and disease. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2018; 1866:124-143. [PMID: 30401534 PMCID: PMC6227380 DOI: 10.1016/j.bbamcr.2018.09.002] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/15/2018] [Accepted: 09/06/2018] [Indexed: 02/07/2023]
Abstract
It is well established that a family of dual-specificity MAP kinase phosphatases (MKPs) play key roles in the regulated dephosphorylation and inactivation of MAP kinase isoforms in mammalian cells and tissues. MKPs provide a mechanism of spatiotemporal feedback control of these key signalling pathways, but can also mediate crosstalk between distinct MAP kinase cascades and facilitate interactions between MAP kinase pathways and other key signalling modules. As our knowledge of the regulation, substrate specificity and catalytic mechanisms of MKPs has matured, more recent work using genetic models has revealed key physiological functions for MKPs and also uncovered potentially important roles in regulating the pathophysiological outcome of signalling with relevance to human diseases. These include cancer, diabetes, inflammatory and neurodegenerative disorders. It is hoped that this understanding will reveal novel therapeutic targets and biomarkers for disease, thus contributing to more effective diagnosis and treatment for these debilitating and often fatal conditions. A comprehensive review of the dual-specificity MAP kinase Phosphatases (MKPs) Focus is on MKPs in the regulation of MAPK signalling in health and disease. Covers roles of MKPs in inflammation, obesity/diabetes, cancer and neurodegeneration
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Affiliation(s)
- Ole-Morten Seternes
- Department of Pharmacy, UiT The Arctic University of Norway, N-9037 Tromsø, Norway.
| | - Andrew M Kidger
- Signalling Programme, The Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, England, UK.
| | - Stephen M Keyse
- Stress Response Laboratory, Jacqui Wood Cancer Centre, James Arrot Drive, Ninewells Hospital & Medical School, Dundee DD1 9SY, UK.
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17
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Pourteymour S, Hjorth M, Lee S, Holen T, Langleite TM, Jensen J, Birkeland KI, Drevon CA, Eckardt K. Dual specificity phosphatase 5 and 6 are oppositely regulated in human skeletal muscle by acute exercise. Physiol Rep 2018; 5:5/19/e13459. [PMID: 28989118 PMCID: PMC5641939 DOI: 10.14814/phy2.13459] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 08/25/2017] [Accepted: 08/29/2017] [Indexed: 12/24/2022] Open
Abstract
Physical activity promotes specific adaptations in most tissues including skeletal muscle. Acute exercise activates numerous signaling cascades including pathways involving mitogen‐activated protein kinases (MAPKs) such as extracellular signal‐regulated kinase (ERK)1/2, which returns to pre‐exercise level after exercise. The expression of MAPK phosphatases (MKPs) in human skeletal muscle and their regulation by exercise have not been investigated before. In this study, we used mRNA sequencing to monitor regulation of MKPs in human skeletal muscle after acute cycling. In addition, primary human myotubes were used to gain more insights into the regulation of MKPs. The two ERK1/2‐specific MKPs, dual specificity phosphatase 5 (DUSP5) and DUSP6, were the most regulated MKPs in skeletal muscle after acute exercise. DUSP5 expression was ninefold higher immediately after exercise and returned to pre‐exercise level within 2 h, whereas DUSP6 expression was reduced by 43% just after exercise and remained below pre‐exercise level after 2 h recovery. Cultured myotubes express both MKPs, and incubation with dexamethasone (Dex) mimicked the in vivo expression pattern of DUSP5 and DUSP6 caused by exercise. Using a MAPK kinase inhibitor, we showed that stimulation of ERK1/2 activity by Dex was required for induction of DUSP5. However, maintaining basal ERK1/2 activity was required for basal DUSP6 expression suggesting that the effect of Dex on DUSP6 might involve an ERK1/2‐independent mechanism. We conclude that the altered expression of DUSP5 and DUSP6 in skeletal muscle after acute endurance exercise might affect ERK1/2 signaling of importance for adaptations in skeletal muscle during exercise.
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Affiliation(s)
- Shirin Pourteymour
- Department of Nutrition, Institute for Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Marit Hjorth
- Department of Nutrition, Institute for Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway.,Diabetes and Metabolism Division, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Sindre Lee
- Department of Nutrition, Institute for Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Torgeir Holen
- Department of Nutrition, Institute for Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Torgrim M Langleite
- Department of Nutrition, Institute for Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Jørgen Jensen
- Department of Physical Performance, Norwegian School of Sport Sciences, Oslo, Norway
| | - Kåre I Birkeland
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital and University of Oslo, Oslo, Norway
| | - Christian A Drevon
- Department of Nutrition, Institute for Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Kristin Eckardt
- Department of Nutrition, Institute for Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway
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18
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Habibian JS, Jefic M, Bagchi RA, Lane RH, McKnight RA, McKinsey TA, Morrison RF, Ferguson BS. DUSP5 functions as a feedback regulator of TNFα-induced ERK1/2 dephosphorylation and inflammatory gene expression in adipocytes. Sci Rep 2017; 7:12879. [PMID: 29018280 PMCID: PMC5635013 DOI: 10.1038/s41598-017-12861-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 09/14/2017] [Indexed: 12/12/2022] Open
Abstract
Adipose tissue inflammation is a central pathological element that regulates obesity-mediated insulin resistance and type II diabetes. Evidence demonstrates that extracellular signal-regulated kinase (ERK 1/2) activation (i.e. phosphorylation) links tumor necrosis factor α (TNFα) to pro-inflammatory gene expression in the nucleus. Dual specificity phosphatases (DUSPs) inactivate ERK 1/2 through dephosphorylation and can thus inhibit inflammatory gene expression. We report that DUSP5, an ERK1/2 phosphatase, was induced in epididymal white adipose tissue (WAT) in response to diet-induced obesity. Moreover, DUSP5 mRNA expression increased during obesity development concomitant to increases in TNFα expression. Consistent with in vivo findings, DUSP5 mRNA expression increased in adipocytes in response to TNFα, parallel with ERK1/2 dephosphorylation. Genetic loss of DUSP5 exacerbated TNFα-mediated ERK 1/2 signaling in 3T3-L1 adipocytes and in adipose tissue of mice. Furthermore, inhibition of ERK 1/2 and c-Jun N terminal kinase (JNK) signaling attenuated TNFα-induced DUSP5 expression. These data suggest that DUSP5 functions in the feedback inhibition of ERK1/2 signaling in response to TNFα, which resulted in increased inflammatory gene expression. Thus, DUSP5 potentially acts as an endogenous regulator of adipose tissue inflammation; although its role in obesity-mediated inflammation and insulin signaling remains unclear.
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Affiliation(s)
- Justine S Habibian
- University of Nevada, Department of Agriculture, Nutrition, and Veterinary Sciences, Reno, Reno, Nevada, 89557, USA
| | - Mitra Jefic
- University of Nevada, Department of Agriculture, Nutrition, and Veterinary Sciences, Reno, Reno, Nevada, 89557, USA
| | - Rushita A Bagchi
- University of Colorado Denver-Anschutz Medical Campus, Department of Medicine, Division of Cardiology and Consortium for Fibrosis Research & Translation, Aurora, Colorado, 80045, USA
| | - Robert H Lane
- Medical College of Wisconsin, Department of Pediatrics, Milwaukee, Wisconsin, 53226, USA
| | - Robert A McKnight
- University of Utah, Department of Pediatrics, Salt Lake City, Utah, 84108, USA
| | - Timothy A McKinsey
- University of Colorado Denver-Anschutz Medical Campus, Department of Medicine, Division of Cardiology and Consortium for Fibrosis Research & Translation, Aurora, Colorado, 80045, USA
| | - Ron F Morrison
- University of North Carolina Greensboro, Department of Nutrition, Greensboro, North Carolina, 27412, USA.
| | - Bradley S Ferguson
- University of Nevada, Department of Agriculture, Nutrition, and Veterinary Sciences, Reno, Reno, Nevada, 89557, USA.
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19
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Yao B, Wang S, Xiao P, Wang Q, Hea Y, Zhang Y. MAPK signaling pathways in eye wounds: Multifunction and cooperation. Exp Cell Res 2017; 359:10-16. [DOI: 10.1016/j.yexcr.2017.06.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 06/29/2017] [Indexed: 12/12/2022]
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20
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Buffet C, Hecale-Perlemoine K, Bricaire L, Dumont F, Baudry C, Tissier F, Bertherat J, Cochand-Priollet B, Raffin-Sanson ML, Cormier F, Groussin L. DUSP5 and DUSP6, two ERK specific phosphatases, are markers of a higher MAPK signaling activation in BRAF mutated thyroid cancers. PLoS One 2017; 12:e0184861. [PMID: 28910386 PMCID: PMC5599027 DOI: 10.1371/journal.pone.0184861] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 09/03/2017] [Indexed: 02/05/2023] Open
Abstract
Background Molecular alterations of the MAPK pathway are frequently observed in papillary thyroid carcinomas (PTCs). It leads to a constitutive activation of the signalling pathway through an increase in MEK and ERK phosphorylation. ERK is negatively feedback-regulated by Dual Specificity Phosphatases (DUSPs), especially two ERK-specific DUSPs, DUSP5 (nuclear) and DUSP6 (cytosolic). These negative MAPK regulators may play a role in thyroid carcinogenesis. Methods MAPK pathway activation was analyzed in 11 human thyroid cancer cell lines. Both phosphatases were studied in three PCCL3 rat thyroid cell lines that express doxycycline inducible PTC oncogenes (RET/PTC3, H-RASV12 or BRAFV600E). Expression levels of DUSP5 and DUSP6 were quantified in 39 human PTCs. The functional role of DUSP5 and DUSP6 was investigated through their silencing in two human BRAFV600E carcinoma cell lines. Results BRAFV600E human thyroid cancer cell lines expressed higher phospho-MEK levels but not higher phospho-ERK levels. DUSP5 and DUSP6 are specifically induced by the MEK-ERK pathway in the three PTC oncogenes inducible thyroid cell lines. This negative feedback loop explains the tight regulation of p-ERK levels. DUSP5 and DUSP6 mRNA are overexpressed in human PTCs, especially in BRAFV600E mutated PTCs. DUSP5 and/or DUSP6 siRNA inactivation did not affect proliferation in two BRAFV600E mutated cell lines, which may be explained by a compensatory increase in other phosphatases. In the light of this, we observed a marked DUSP6 upregulation upon DUSP5 inactivation. Despite this, DUSP5 and DUSP6 positively control cell migration and invasion. Conclusions Our results are in favor of a stronger activation of the MAPK pathway in BRAFV600E PTCs. DUSP5 and DUSP6 have pro-tumorigenic properties in two BRAFV600E PTC cell line models.
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Affiliation(s)
- Camille Buffet
- INSERM, U1016, Institut Cochin, Paris, France
- CNRS, UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, France
- * E-mail:
| | - Karine Hecale-Perlemoine
- INSERM, U1016, Institut Cochin, Paris, France
- CNRS, UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, France
| | - Léopoldine Bricaire
- INSERM, U1016, Institut Cochin, Paris, France
- CNRS, UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, France
| | - Florent Dumont
- INSERM, U1016, Institut Cochin, Paris, France
- CNRS, UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, France
| | - Camille Baudry
- INSERM, U1016, Institut Cochin, Paris, France
- CNRS, UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, France
| | - Frédérique Tissier
- INSERM, U1016, Institut Cochin, Paris, France
- CNRS, UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, France
- Department of Pathology, Pitié-Salpêtrière Hospital, Paris, France
| | - Jérôme Bertherat
- INSERM, U1016, Institut Cochin, Paris, France
- CNRS, UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, France
- Department of Endocrinology, Cochin Hospital, Paris, France
| | | | | | - Françoise Cormier
- INSERM, U1016, Institut Cochin, Paris, France
- CNRS, UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, France
| | - Lionel Groussin
- INSERM, U1016, Institut Cochin, Paris, France
- CNRS, UMR8104, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, France
- Department of Endocrinology, Cochin Hospital, Paris, France
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21
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Joo JC, Hwang JH, Jo E, Kim YR, Kim DJ, Lee KB, Park SJ, Jang IS. Cordycepin induces apoptosis by caveolin-1-mediated JNK regulation of Foxo3a in human lung adenocarcinoma. Oncotarget 2017; 8:12211-12224. [PMID: 28099944 PMCID: PMC5355338 DOI: 10.18632/oncotarget.14661] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 12/27/2016] [Indexed: 11/29/2022] Open
Abstract
Forkhead transcription factor (Foxo3a) is a downstream effector of JNK-induced tumor suppression. However, it is not clear whether the caveolin-1 (CAV1)-mediated JNK/Foxo3a pathway is involved in cancer cell apoptosis. We found that cordycepin upregulates CAV1 expression, which was accompanied by JNK phosphorylation (p-JNK) and subsequent Foxo3a translocation into the nucleus, resulting in the upregulation of Bax protein expression. Furthermore, we found that CAV1 overexpression upregulated p-JNK, whereas CAV1 siRNA downregulated p-JNK. Additionally, SP600125, a specific JNK inhibitor, significantly increased Foxo3a phosphorylation, which downregulated Foxo3a translocation into the nucleus, indicating that CAV1 mediates JNK regulation of Foxo3a. Foxo3a siRNA downregulated Bax protein and attenuated A549 apoptosis, indicating that the CAV1-mediated JNK/Foxo3a pathway induces the apoptosis of A549 lung cancer cells. Cordycepin significantly decreased tumor volume in nude mice. Taken together, these results indicate that cordycepin promotes CAV1 upregulation to enhance JNK/Foxo3a signaling pathway activation, inducing apoptosis in lung cancer cells, and support its potential as a therapeutic agent for lung cancer.
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Affiliation(s)
- Jong Cheon Joo
- Department of Sasang Constitutional Medicine, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Jung Hoo Hwang
- College of Medicine, Chung-Ang University, Seoul 156-756, Republic of Korea
| | - Eunbi Jo
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
| | - Young-Rang Kim
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
| | - Dae Joon Kim
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA
| | - Kyung-Bok Lee
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
| | - Soo Jung Park
- Department of Sasang Constitutional Medicine, Woosuk University, Wanju, Jeonbuk, 55338, Republic of Korea
| | - Ik-Soon Jang
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
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22
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DiCarlo LM, Vied C, Nowakowski RS. The stability of the transcriptome during the estrous cycle in four regions of the mouse brain. J Comp Neurol 2017; 525:3360-3387. [PMID: 28685836 DOI: 10.1002/cne.24282] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 07/03/2017] [Accepted: 07/05/2017] [Indexed: 01/21/2023]
Abstract
We analyzed the transcriptome of the C57BL/6J mouse hypothalamus, hippocampus, neocortex, and cerebellum to determine estrous cycle-specific changes in these four brain regions. We found almost 16,000 genes are present in one or more of the brain areas but only 210 genes, ∼1.3%, are significantly changed as a result of the estrous cycle. The hippocampus has the largest number of differentially expressed genes (DEGs) (82), followed by the neocortex (76), hypothalamus (63), and cerebellum (26). Most of these DEGs (186/210) are differentially expressed in only one of the four brain regions. A key finding is the unique expression pattern of growth hormone (Gh) and prolactin (Prl). Gh and Prl are the only DEGs to be expressed during only one stage of the estrous cycle (metestrus). To gain insight into the function of the DEGs, we examined gene ontology and phenotype enrichment and found significant enrichment for genes associated with myelination, hormone stimulus, and abnormal hormone levels. Additionally, 61 of the 210 DEGs are known to change in response to estrogen in the brain. 50 of the 210 genes differentially expressed as a result of the estrous cycle are related to myelin and oligodendrocytes and 12 of the 63 DEGs in the hypothalamus are oligodendrocyte- and myelin-specific genes. This transcriptomic analysis reveals that gene expression in the female mouse brain is remarkably stable during the estrous cycle and demonstrates that the genes that do fluctuate are functionally related.
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Affiliation(s)
- Lisa M DiCarlo
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, Florida
| | - Cynthia Vied
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, Florida.,Translational Science Laboratory, Florida State University College of Medicine, Tallahassee, Florida
| | - Richard S Nowakowski
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, Florida
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23
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Lösing P, Niturad CE, Harrer M, Reckendorf CMZ, Schatz T, Sinske D, Lerche H, Maljevic S, Knöll B. SRF modulates seizure occurrence, activity induced gene transcription and hippocampal circuit reorganization in the mouse pilocarpine epilepsy model. Mol Brain 2017; 10:30. [PMID: 28716058 PMCID: PMC5513048 DOI: 10.1186/s13041-017-0310-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 06/28/2017] [Indexed: 11/10/2022] Open
Abstract
A hallmark of temporal lobe epilepsy (TLE) is hippocampal neuronal demise and aberrant mossy fiber sprouting. In addition, unrestrained neuronal activity in TLE patients induces gene expression including immediate early genes (IEGs) such as Fos and Egr1. We employed the mouse pilocarpine model to analyze the transcription factor (TF) serum response factor (SRF) in epileptogenesis, seizure induced histopathology and IEG induction. SRF is a neuronal activity regulated TF stimulating IEG expression as well as nerve fiber growth and guidance. Adult conditional SRF deficient mice (SrfCaMKCreERT2) were more refractory to initial status epilepticus (SE) acquisition. Further, SRF deficient mice developed more spontaneous recurrent seizures (SRS). Genome-wide transcriptomic analysis uncovered a requirement of SRF for SE and SRS induced IEG induction (e.g. Fos, Egr1, Arc, Npas4, Btg2, Atf3). SRF was required for epilepsy associated neurodegeneration, mossy fiber sprouting and inflammation. We uncovered MAP kinase signaling as SRF target during epilepsy. Upon SRF ablation, seizure evoked induction of dual specific phosphatases (Dusp5 and Dusp6) was reduced. Lower expression of these negative ERK kinase regulators correlated with altered P-ERK levels in epileptic Srf mutant animals. Overall, this study uncovered an SRF contribution to several processes of epileptogenesis in the pilocarpine model.
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Affiliation(s)
- Pascal Lösing
- Institute of Physiological Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Cristina Elena Niturad
- Department of Neurology and Epileptology, Hertie-Institute of Clinical Brain Research, University of Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany
| | - Merle Harrer
- Department of Neurology and Epileptology, Hertie-Institute of Clinical Brain Research, University of Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany
| | | | - Theresa Schatz
- Institute of Physiological Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Daniela Sinske
- Institute of Physiological Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Holger Lerche
- Department of Neurology and Epileptology, Hertie-Institute of Clinical Brain Research, University of Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany
| | - Snezana Maljevic
- Department of Neurology and Epileptology, Hertie-Institute of Clinical Brain Research, University of Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany.,Present address: The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville VIC, Melbourne, 3052, Australia
| | - Bernd Knöll
- Institute of Physiological Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
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24
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Dual-specificity phosphatase 5 controls the localized inhibition, propagation, and transforming potential of ERK signaling. Proc Natl Acad Sci U S A 2017; 114:E317-E326. [PMID: 28053233 DOI: 10.1073/pnas.1614684114] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Deregulated extracellular signal-regulated kinase (ERK) signaling drives cancer growth. Normally, ERK activity is self-limiting by the rapid inactivation of upstream kinases and delayed induction of dual-specificity MAP kinase phosphatases (MKPs/DUSPs). However, interactions between these feedback mechanisms are unclear. Here we show that, although the MKP DUSP5 both inactivates and anchors ERK in the nucleus, it paradoxically increases and prolongs cytoplasmic ERK activity. The latter effect is caused, at least in part, by the relief of ERK-mediated RAF inhibition. The importance of this spatiotemporal interaction between these distinct feedback mechanisms is illustrated by the fact that expression of oncogenic BRAFV600E, a feedback-insensitive mutant RAF kinase, reprograms DUSP5 into a cell-wide ERK inhibitor that facilitates cell proliferation and transformation. In contrast, DUSP5 deletion causes BRAFV600E-induced ERK hyperactivation and cellular senescence. Thus, feedback interactions within the ERK pathway can regulate cell proliferation and transformation, and suggest oncogene-specific roles for DUSP5 in controlling ERK signaling and cell fate.
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25
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Gualdrini F, Esnault C, Horswell S, Stewart A, Matthews N, Treisman R. SRF Co-factors Control the Balance between Cell Proliferation and Contractility. Mol Cell 2016; 64:1048-1061. [PMID: 27867007 PMCID: PMC5179500 DOI: 10.1016/j.molcel.2016.10.016] [Citation(s) in RCA: 104] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 09/26/2016] [Accepted: 10/11/2016] [Indexed: 12/20/2022]
Abstract
The ERK-regulated ternary complex factors (TCFs) act with the transcription factor serum response factor (SRF) to activate mitogen-induced transcription. However, the extent of their involvement in the immediate-early transcriptional response, and their wider functional significance, has remained unclear. We show that, in MEFs, TCF inactivation significantly inhibits over 60% of TPA-inducible gene transcription and impairs cell proliferation. Using integrated SRF ChIP-seq and Hi-C data, we identified over 700 TCF-dependent SRF direct target genes involved in signaling, transcription, and proliferation. These also include a significant number of cytoskeletal gene targets for the Rho-regulated myocardin-related transcription factor (MRTF) SRF cofactor family. The TCFs act as general antagonists of MRTF-dependent SRF target gene expression, competing directly with the MRTFs for access to SRF. As a result, TCF-deficient MEFs exhibit hypercontractile and pro-invasive behavior. Thus, competition between TCFs and MRTFs for SRF determines the balance between antagonistic proliferative and contractile programs of gene expression.
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Affiliation(s)
- Francesco Gualdrini
- Signalling and Transcription Group, Francis Crick Institute, 1 Midland Rd, London NW1 1AT, UK
| | - Cyril Esnault
- Signalling and Transcription Group, Francis Crick Institute, 1 Midland Rd, London NW1 1AT, UK
| | - Stuart Horswell
- Bioinformatics and Biostatistics STP, Francis Crick Institute, 1 Midland Rd, London NW1 1AT, UK
| | - Aengus Stewart
- Bioinformatics and Biostatistics STP, Francis Crick Institute, 1 Midland Rd, London NW1 1AT, UK
| | - Nik Matthews
- Advanced Sequencing STP, Francis Crick Institute, 1 Midland Rd, London NW1 1AT, UK
| | - Richard Treisman
- Signalling and Transcription Group, Francis Crick Institute, 1 Midland Rd, London NW1 1AT, UK.
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26
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Yan X, Liu L, Li H, Huang L, Yin M, Pan C, Qin H, Jin Z. Dual specificity phosphatase 5 is a novel prognostic indicator for patients with advanced colorectal cancer. Am J Cancer Res 2016; 6:2323-2333. [PMID: 27822421 PMCID: PMC5088295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 09/08/2016] [Indexed: 06/06/2023] Open
Abstract
Dual specificity phosphatase 5 (DUSP5) is a negative regulator of Mitogen-activated protein kinase (MAPK) signaling pathway and has recently been identified as a tumor suppressor in several human malignancies. However, its clinical significance in colorectal cancer (CRC) remains unclear. In this study, we aimed to investigate the potential utility of DUSP5 as a novel biomarker for progression indication and chemotherapy benefit in CRC patients. Through quantitative real time-polymerase chain reaction and western blot, we determined that DUSP5 expression is dramatically lower in CRC tissues than that in matched normal tissues. The statistical analysis based on immunohistochemistry revealed that DUSP5 expression is significantly correlated with tumor differentiation, TNM stage, lymph node metastasis and distant metastasis. For the whole study cohort, patients with high DUSP5 expression had a better CRC-specific and disease-free survival than those with low DUSP5 expression and DUSP5 expression is an independent prognostic factor for patient survival. In subgroup analysis, DUSP5 has no prognostic significance in low-risk stage II patients, but could predict treatment response in high-risk stage II and stage III/IV patients who received standard FOLFOX chemotherapy scheme. Finally, the correlation analysis suggested that DUSP5 expression is associated with Epithelial-to-Mesenchymal Transition (EMT) phenotype in CRC tissues, suggesting that downregulated DUSP5 may contribute to poor prognosis partly by involving EMT. Taken together, our study proposes that DUSP5 is a promising biomarker for predicting CRC progression and advanced patients with high DUSP5 expression appear to benefit from standard FOLFOX chemotherapy scheme.
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Affiliation(s)
- Xuebing Yan
- Department of General Surgery, Shanghai Tenth People’s Hospital Affiliated to Tongji UniversityNo. 301, Yan-Chang Road, Shanghai 200072, China
| | - Liguo Liu
- Department of General Surgery, The Sixth People’s Hospital Affiliated to Shanghai Jiao Tong UniversityNo. 600, Yi-Shan Road, Shanghai 200233, China
| | - Hao Li
- Department of General Surgery, Shanghai Tenth People’s Hospital Affiliated to Tongji UniversityNo. 301, Yan-Chang Road, Shanghai 200072, China
| | - Linsheng Huang
- Department of General Surgery, Shanghai Tenth People’s Hospital Affiliated to Tongji UniversityNo. 301, Yan-Chang Road, Shanghai 200072, China
| | - Mingming Yin
- Department of General Surgery, Shanghai Tenth People’s Hospital Affiliated to Tongji UniversityNo. 301, Yan-Chang Road, Shanghai 200072, China
| | - Cheng Pan
- Department of General Surgery, Shanghai Tenth People’s Hospital Affiliated to Tongji UniversityNo. 301, Yan-Chang Road, Shanghai 200072, China
| | - Huanlong Qin
- Department of General Surgery, Shanghai Tenth People’s Hospital Affiliated to Tongji UniversityNo. 301, Yan-Chang Road, Shanghai 200072, China
| | - Zhiming Jin
- Department of General Surgery, The Sixth People’s Hospital Affiliated to Shanghai Jiao Tong UniversityNo. 600, Yi-Shan Road, Shanghai 200233, China
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27
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Liu R, Molkentin JD. Regulation of cardiac hypertrophy and remodeling through the dual-specificity MAPK phosphatases (DUSPs). J Mol Cell Cardiol 2016; 101:44-49. [PMID: 27575022 DOI: 10.1016/j.yjmcc.2016.08.018] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 08/24/2016] [Accepted: 08/25/2016] [Indexed: 01/19/2023]
Abstract
Mitogen-activated protein kinases (MAPKs) play a critical role in regulating cardiac hypertrophy and remodeling in response to increased workload or pathological insults. The spatiotemporal activities and inactivation of MAPKs are tightly controlled by a family of dual-specificity MAPK phosphatases (DUSPs). Over the past 2 decades, we and others have determined the critical role for selected DUSP family members in controlling MAPK activity in the heart and the ensuing effects on ventricular growth and remodeling. More specifically, studies from mice deficient for individual Dusp genes as well as heart-specific inducible transgene-mediated overexpression have implicated select DUSPs as essential signaling effectors in the heart that function by dynamically regulating the level, subcellular and temporal activities of the extracellular signal-regulated kinases (ERKs), c-Jun N-terminal kinases (JNKs) and p38 MAPKs. This review summarizes recent literature on the physiological and pathological roles of MAPK-specific DUSPs in regulating MAPK signaling in the heart and the effect on cardiac growth and remodeling.
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Affiliation(s)
- Ruijie Liu
- Department of Biomedical Sciences, Grand Valley State University, Allendale, MI 49401, USA; Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Jeffery D Molkentin
- Division of Molecular Cardiovascular Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Howard Hughes Medical Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.
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28
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Hwang JH, Joo JC, Kim DJ, Jo E, Yoo HS, Lee KB, Park SJ, Jang IS. Cordycepin promotes apoptosis by modulating the ERK-JNK signaling pathway via DUSP5 in renal cancer cells. Am J Cancer Res 2016; 6:1758-1771. [PMID: 27648363 PMCID: PMC5004077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Accepted: 07/22/2016] [Indexed: 06/06/2023] Open
Abstract
Constitutive activation of extracellular signal regulated kinase (ERK)-Jun NH2-terminal kinase (JNK) signaling commonly occurs in tumors. The activation of ERK promotes cell proliferation, whereas that of JNK induces cell apoptosis. However, the apoptotic mechanism of ERK-JNK signaling in cancer is not well understood. Recently, we identified that apoptosis and activation of the JNK signaling pathway were induced after cordycepin treatment in human renal cancer, suggesting that JNK signaling might contribute to TK-10 cell apoptosis. We investigated the apoptotic effects of cordycepin by evaluating the activation of the ERK-JNK signaling pathway in renal cancer TK-10 cells. We found that cordycepin downregulated ERK and DUSP5, upregulated phosphorylated-JNK (p-JNK), and induced apoptosis. Moreover, we showed that siRNA-mediated inhibition of ERK downregulated DUSP5, whereas ERK overexpression upregulated DUSP5, and that DUSP5 knockdown by siRNA upregulated p-JNK. The JNK-specific inhibitor SP600125 upregulated nuclear translocation of β-catenin, and downregulated Dickkopf-1 (Dkk1), which has been shown to be a potent inhibitor of Wnt signaling. Dkk1 knockdown by siRNA upregulated nuclear β-catenin, suggesting the involvement of the Wnt/β-catenin signaling pathway. DUSP5 overexpression in TK-10 cells decreased p-JNK and increased nuclear β-catenin. The decreased Bax activation markedly protected against cordycepin-induced apoptosis. Bax subfamily proteins induced apoptosis through caspase-3. Taken together, we show that JNK signaling activation by cordycepin mediated ERK inhibition, which might have induced Bax translocation and caspase-3 activation via regulation of DUSP5 in TK-10 cells, thereby promoting the apoptosis of TK-10 cells. Targeting ERK-JNK signaling via the apoptotic effects of cordycepin could be a potential therapeutic strategy to treat renal cancer.
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Affiliation(s)
- Jung-Hoo Hwang
- College of Medicine, Chung-Ang UniversitySeoul 156-756, Republic of Korea
| | - Jong Cheon Joo
- Department of Sasang Constitutional Medicine, College of Korean Medicine, Wonkwang UniversityIksan, Jeonbuk 54538, Republic of Korea
| | - Dae Joon Kim
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande ValleyEdinburg, TX 78541, USA
| | - Eunbi Jo
- Division of Bioconvergence Analysis, Korea Basic Science InstituteDaejeon 305-333, Republic of Korea
| | - Hwa-Seung Yoo
- East-West Cancer Center, Daejeon UniversityDaejeon 302-120, Republic of Kore
| | - Kyung-Bok Lee
- Division of Bioconvergence Analysis, Korea Basic Science InstituteDaejeon 305-333, Republic of Korea
| | - Soo Jung Park
- Department of Sasang Constitutional Medicine, College of Korean Medicine, Woosuk UniversityWanju, Jeonbuk 55338, Republic of Korea
| | - Ik-Soon Jang
- Division of Bioconvergence Analysis, Korea Basic Science InstituteDaejeon 305-333, Republic of Korea
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