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Jin K, Li Y, Wei R, Liu Y, Wang S, Tian H. BZW2 promotes malignant progression in lung adenocarcinoma through enhancing the ubiquitination and degradation of GSK3β. Cell Death Discov 2024; 10:105. [PMID: 38424042 PMCID: PMC10904796 DOI: 10.1038/s41420-024-01879-7] [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: 11/14/2023] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 03/02/2024] Open
Abstract
The role of Basic leucine zipper and W2 domains 2 (BZW2) in the advancement of different types of tumors is noteworthy, but its involvement and molecular mechanisms in lung adenocarcinoma (LUAD) remain uncertain. Through this investigation, it was found that the upregulation of BZW2 was observed in LUAD tissues, which was associated with an unfavorable prognosis for individuals diagnosed with LUAD, as indicated by data from Gene Expression Omnibus and The Cancer Genome Atlas databases. Based on the clinicopathologic characteristics of LUAD patients from the tissue microarray, both univariate and multivariate analyses indicated that BZW2 functioned as an independent prognostic factor for LUAD. In terms of mechanism, BZW2 interacted with glycogen synthase kinase-3 beta (GSK3β) and enhanced the ubiquitination-mediated degradation of GSK3β through slowing down of the dissociation of the ubiquitin ligase complex, which consists of GSK3β and TNF receptor-associated factor 6. Moreover, BZW2 stimulated Wnt/β-catenin signaling pathway through GSK3β, thereby facilitating the advancement of LUAD. In conclusion, BZW2 was a significant promoter of LUAD. The research we conducted identified a promising diagnostic and therapeutic target for LUAD.
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Affiliation(s)
- Kai Jin
- Department of Thoracic Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yongmeng Li
- Department of Thoracic Surgery, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Ruyuan Wei
- Department of Cardiovascular Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yanfei Liu
- Department of Anesthesiology, Qilu Children's Hospital of Shandong University, Jinan, China
| | - Shuai Wang
- Department of Thoracic Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Hui Tian
- Department of Thoracic Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China.
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2
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Liang LL, He MF, Zhou PP, Pan SK, Liu DW, Liu ZS. GSK3β: A ray of hope for the treatment of diabetic kidney disease. FASEB J 2024; 38:e23458. [PMID: 38315453 DOI: 10.1096/fj.202302160r] [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: 10/23/2023] [Revised: 12/09/2023] [Accepted: 01/17/2024] [Indexed: 02/07/2024]
Abstract
Diabetic kidney disease (DKD), a major microvascular complication of diabetes, is characterized by its complex pathogenesis, high risk of chronic renal failure, and lack of effective diagnosis and treatment methods. GSK3β (glycogen synthase kinase 3β), a highly conserved threonine/serine kinase, was found to activate glycogen synthase. As a key molecule of the glucose metabolism pathway, GSK3β participates in a variety of cellular activities and plays a pivotal role in multiple diseases. However, these effects are not only mediated by affecting glucose metabolism. This review elaborates on the role of GSK3β in DKD and its damage mechanism in different intrinsic renal cells. GSK3β is also a biomarker indicating the progression of DKD. Finally, the protective effects of GSK3β inhibitors on DKD are also discussed.
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Affiliation(s)
- Lu-Lu Liang
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Meng-Fei He
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Pan-Pan Zhou
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Shao-Kang Pan
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Dong-Wei Liu
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
| | - Zhang-Suo Liu
- Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, P.R. China
- Henan Province Research Center For Kidney Disease, Zhengzhou, P.R. China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, P.R. China
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Liao CH, Lai TY, Lin YY, Liao YC, Lai GM, Chu TH, Wu SY, Tsai WL, Whang-Peng J, Liu F, Chiou TJ, Yao CJ. Inhibition of Polyinosinic-Polycytidylic Acid-Induced Acute Pulmonary Inflammation and NF-κB Activation in Mice by a Banana Plant Extract. Int J Med Sci 2024; 21:107-122. [PMID: 38164360 PMCID: PMC10750330 DOI: 10.7150/ijms.88748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/17/2023] [Indexed: 01/03/2024] Open
Abstract
NF-κB activation is pivotal for the excess inflammation causing the critical condition and mortality of respiratory viral infection patients. This study was aimed to evaluate the effect of a banana plant extract (BPE) on suppressing NF-κB activity and acute lung inflammatory responses in mice induced by a synthetic double-stranded RNA viral mimetic, polyinosinic-polycytidylic acid (poly (I:C)). The inflammatory responses were analyzed by immunohistochemistry and HE stains and ELISA. The NF-κB activities were detected by immunohistochemistry in vivo and immunofluorescence and Western blot in vitro. Results showed that BPE significantly decreased influx of immune cells (neutrophils, lymphocytes, and total WBC), markedly suppressed the elevation of pro-inflammatory cytokines and chemokines (IL-6, RANTES, IFN-γ, MCP-1, keratinocyte-derived chemokine, and IL-17), and restored the diminished anti-inflammatory IL-10 in the bronchoalveolar lavage fluid (BALF) of poly (I:C)-stimulated mice. Accordingly, HE staining revealed that BPE treatment alleviated poly (I:C)-induced inflammatory cell infiltration and histopathologic changes in mice lungs. Moreover, immunohistochemical analysis showed that BPE reduced the pulmonary IL-6, CD11b (macrophage marker), and nuclear NF-κB p65 staining intensities, whilst restored that of IL-10 in poly (I:C)-stimulated mice. In vitro, BPE antagonized poly(I:C)-induced elevation of IL-6, nitric oxide, reactive oxygen species, NF-κB p65 signaling, and transient activation of p38 MAPK in human lung epithelial-like A549 cells. Taken together, BPE ameliorated viral mimic poly(I:C)-induced acute pulmonary inflammation in mice, evidenced by reduced inflammatory cell infiltration and regulation of both pro- and anti-inflammatory cytokines. The mechanism of action might closely associate with NF-κB signaling inhibition.
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Affiliation(s)
- Chien-Huang Liao
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Tung-Yuan Lai
- Department of Chinese Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 97002, Taiwan
- Traditional Chinese Medicine Cancer Center, Hualien Tzu Chi Hospital, Hualien 97002, Taiwan
| | - Yu-Ying Lin
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Yi-Chun Liao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 11529, Taiwan
| | - Gi-Ming Lai
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Tien-Hua Chu
- Chimera Bioscience Inc., No. 18 Siyuan St., Zhongzheng Dist., Taipei 10087, Taiwan
| | - Szu-Yao Wu
- Chimera Bioscience Inc., No. 18 Siyuan St., Zhongzheng Dist., Taipei 10087, Taiwan
| | - Wei-Lun Tsai
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Jacqueline Whang-Peng
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Frank Liu
- Department of Research and Development, Natural Well Technical Company, Guishan, Taoyuan 33377, Taiwan
| | - Tzeon-Jye Chiou
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Division of Hematology and Medical Oncology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
| | - Chih-Jung Yao
- Department of Medical Education and Research, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
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Lai S, Wang P, Gong J, Zhang S. New insights into the role of GSK-3β in the brain: from neurodegenerative disease to tumorigenesis. PeerJ 2023; 11:e16635. [PMID: 38107562 PMCID: PMC10722984 DOI: 10.7717/peerj.16635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/18/2023] [Indexed: 12/19/2023] Open
Abstract
Glycogen synthase kinase 3 (GSK-3) is a serine/threonine kinase widely expressed in various tissues and organs. Unlike other kinases, GSK-3 is active under resting conditions and is inactivated upon stimulation. In mammals, GSK-3 includes GSK-3 α and GSK-3β isoforms encoded by two homologous genes, namely, GSK3A and GSK3B. GSK-3β is essential for the control of glucose metabolism, signal transduction, and tissue homeostasis. As more than 100 known proteins have been identified as GSK-3β substrates, it is sometimes referred to as a moonlighting kinase. Previous studies have elucidated the regulation modes of GSK-3β. GSK-3β is involved in almost all aspects of brain functions, such as neuronal morphology, synapse formation, neuroinflammation, and neurological disorders. Recently, several comparatively specific small molecules have facilitated the chemical manipulation of this enzyme within cellular systems, leading to the discovery of novel inhibitors for GSK-3β. Despite these advancements, the therapeutic significance of GSK-3β as a drug target is still complicated by uncertainties surrounding the potential of inhibitors to stimulate tumorigenesis. This review provides a comprehensive overview of the intricate mechanisms of this enzyme and evaluates the existing evidence regarding the therapeutic potential of GSK-3β in brain diseases, including Alzheimer's disease, Parkinson's disease, mood disorders, and glioblastoma.
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Affiliation(s)
- Shenjin Lai
- Department of Pharmacy, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Peng Wang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
| | - Jingru Gong
- Department of Pharmacy, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Shuaishuai Zhang
- School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, China
- Institute for Brain Research and Rehabilitation, South China Normal University, Guangzhou, China
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5
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Zhou Z, Zhang M, Zhao C, Gao X, Wen Z, Wu J, Chen C, Fleming I, Hu J, Wang DW. Epoxyeicosatrienoic Acids Prevent Cardiac Dysfunction in Viral Myocarditis via Interferon Type I Signaling. Circ Res 2023; 133:772-788. [PMID: 37681352 DOI: 10.1161/circresaha.123.322619] [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: 02/03/2023] [Accepted: 08/30/2023] [Indexed: 09/09/2023]
Abstract
Myocarditis is a challenging inflammatory disease of the heart, and better understanding of its pathogenesis is needed to develop specific drug therapies. Epoxyeicosatrienoic acids (EETs), active molecules synthesized by CYP (cytochrome P450) enzymes from arachidonic acids and hydrolyzed to less active dihydroxyeicosatrienoic acids by sEH (soluble epoxide hydrolase), have been attributed anti-inflammatory activity. Here, we investigated whether EETs have immunomodulatory activity and exert protective effects on coxsackie B3 virus-induced myocarditis. Viral infection altered eicosanoid epoxide and diol levels in both patients with myocarditis and in the murine heart and correlated with the increased expression and activity of sEH after coxsackie B3 virus infection. Administration of a sEH inhibitor prevented coxsackie B3 virus-induced cardiac dysfunction and inflammatory infiltration. Importantly, EET/sEH inhibitor treatment attenuated viral infection or improved viral resistance by activating type I IFN (interferon) signaling. At the molecular level, EETs enhanced the interaction between GSK3β (glycogen synthase kinase-3 beta) and TBK1 (TANK-binding kinase 1) to promote IFN-β production. Our findings revealed that EETs and sEH inhibitors prevent the progress of coxsackie B3 virus-induced myocarditis, particularly by promoting viral resistance by increasing IFN production.
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Affiliation(s)
- Zhou Zhou
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, China (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.)
| | - Min Zhang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, China (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.)
| | - Chengcheng Zhao
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, China (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.)
| | - Xu Gao
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, China (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.)
| | - Zheng Wen
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, China (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.)
| | - Junfang Wu
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, China (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.)
| | - Chen Chen
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, China (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.)
| | - Ingrid Fleming
- Sino-German Laboratory of CardioPulmonary Science (I.F., J.H., D.W.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute for Vascular Signalling, Goethe University, Frankfurt am Main, Germany (I.F., J.H.)
- German Center of Cardiovascular Research, Partner Site RheinMain, Frankfurt am Main, Germany (I.F., J.H.)
| | - Jiong Hu
- Department of Histology and Embryology, School of Basic Medicine (J.H.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Sino-German Laboratory of CardioPulmonary Science (I.F., J.H., D.W.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Institute for Vascular Signalling, Goethe University, Frankfurt am Main, Germany (I.F., J.H.)
- German Center of Cardiovascular Research, Partner Site RheinMain, Frankfurt am Main, Germany (I.F., J.H.)
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Sino-German Laboratory of CardioPulmonary Science (I.F., J.H., D.W.W.), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, China (Z.Z., M.Z., C.Z., X.G., Z.W., J.W., C.C., D.W.W.)
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Sunilkumar S, VanCleave AM, McCurry CM, Toro AL, Stevens SA, Kimball SR, Dennis MD. REDD1-dependent GSK3β dephosphorylation promotes NF-κB activation and macrophage infiltration in the retina of diabetic mice. J Biol Chem 2023; 299:104991. [PMID: 37392853 PMCID: PMC10407432 DOI: 10.1016/j.jbc.2023.104991] [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: 03/30/2023] [Revised: 06/12/2023] [Accepted: 06/21/2023] [Indexed: 07/03/2023] Open
Abstract
Increasing evidence supports a role for inflammation in the early development and progression of retinal complications caused by diabetes. We recently demonstrated that the stress response protein regulated in development and DNA damage response 1 (REDD1) promotes diabetes-induced retinal inflammation by sustaining canonical activation of nuclear transcription factor, NF-κB. The studies here were designed to identify signaling events whereby REDD1 promotes NF-κB activation in the retina of diabetic mice. We observed increased REDD1 expression in the retina of mice after 16 weeks of streptozotocin (STZ)-induced diabetes and found that REDD1 was essential for diabetes to suppress inhibitory phosphorylation of glycogen synthase kinase 3β (GSK3β) at S9. In human retinal MIO-M1 Müller cell cultures, REDD1 deletion prevented dephosphorylation of GSK3β and increased NF-κB activation in response to hyperglycemic conditions. Expression of a constitutively active GSK3β variant restored NF-κB activation in cells deficient for REDD1. In cells exposed to hyperglycemic conditions, GSK3β knockdown inhibited NF-κB activation and proinflammatory cytokine expression by preventing inhibitor of κB kinase complex autophosphorylation and inhibitor of κB degradation. In both the retina of STZ-diabetic mice and in Müller cells exposed to hyperglycemic conditions, GSK3 inhibition reduced NF-κB activity and prevented an increase in proinflammatory cytokine expression. In contrast with STZ-diabetic mice receiving a vehicle control, macrophage infiltration was not observed in the retina of STZ-diabetic mice treated with GSK3 inhibitor. Collectively, the findings support a model wherein diabetes enhances REDD1-dependent activation of GSK3β to promote canonical NF-κB signaling and the development of retinal inflammation.
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Affiliation(s)
- Siddharth Sunilkumar
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Ashley M VanCleave
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Christopher M McCurry
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Allyson L Toro
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Shaunaci A Stevens
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Scot R Kimball
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Michael D Dennis
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA; Department of Ophthalmology, Penn State College of Medicine, Hershey, Pennsylvania, USA.
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7
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Moliterni C, Tredicine M, Pistilli A, Falcicchia R, Bartolini D, Stabile AM, Rende M, Ria F, Di Sante G. In Vitro and Ex Vivo Methodologies for T-Cell Trafficking Through Blood-Brain Barrier After TLR Activation. Methods Mol Biol 2023; 2700:199-219. [PMID: 37603183 DOI: 10.1007/978-1-0716-3366-3_12] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
This chapter describes ex vivo isolation of human T cells and of naïve splenocytes respectively collected from multiple sclerosis patients and healthy controls and experimental autoimmune encephalomyelitis-affected mice. After the magnetic sorting of naïve and activated T helper lymphocytes, we provide details about the cell cultures to measure the interaction with extracellular matrix proteins using standard cell invasion or hand-made in vitro assays, upon different stimuli, through Toll-like receptor(s) ligands, T-cell activators, and cell adhesion molecules modulators. Finally, we describe the methods to harvest and recover T cells to evaluate the properties associated with their trafficking ability.
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Affiliation(s)
- Camilla Moliterni
- Department of Translational Medicine and Surgery, Section of General Pathology, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Biology and Biotechnology Charles Darwin, University of Rome Sapienza, Rome, Italy
| | - Maria Tredicine
- Department of Translational Medicine and Surgery, Section of General Pathology, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Alessandra Pistilli
- Department of Medicine and Surgery, Section of Human Anatomy, University of Perugia, Perugia, Italy
| | - Renato Falcicchia
- Department of Translational Medicine and Surgery, Section of General Pathology, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Desirée Bartolini
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Anna Maria Stabile
- Department of Medicine and Surgery, Section of Human Anatomy, University of Perugia, Perugia, Italy
| | - Mario Rende
- Department of Medicine and Surgery, Section of Human Anatomy, University of Perugia, Perugia, Italy
| | - Francesco Ria
- Department of Translational Medicine and Surgery, Section of General Pathology, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Gabriele Di Sante
- Department of Medicine and Surgery, Section of Human Anatomy, University of Perugia, Perugia, Italy.
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8
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Hornick EL, Stunz LL, Sabree S, Wu X, Witzig TE, Bishop GA. The Tumor Suppressor Protein TRAF3 Modulates GSK3 Activity and Susceptibility of B Lymphoma Cells to GSK3 Inhibition. Cancers (Basel) 2022; 14:cancers14205029. [PMID: 36291813 PMCID: PMC9599470 DOI: 10.3390/cancers14205029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/11/2022] [Accepted: 10/13/2022] [Indexed: 01/28/2023] Open
Abstract
TNF receptor-associated factor 3 (TRAF3) is an adapter protein that inhibits many signals that promote B cell survival and activation. Mice with a B cell-specific TRAF3 deficiency and humans with a rare haploinsufficiency in TRAF3 have enhanced development of BCLs as they age. Loss-of-function mutations in TRAF3 are common in B cell malignancies. Recent studies show that pharmacological inhibition of the enzyme glycogen synthase kinase 3 (GSK3), which regulates cellular growth, survival, and metabolism, inhibits growth and survival of BCL-derived B cells. In this study, we found that TRAF3 and GSK3 associated in B cells. The relative levels of TRAF3 in BCL cell lines correlated positively with the ratio of inactive to total GSK3β, and negatively correlated with susceptibility to GSK3 inhibition by the GSK3 inhibitory drug 9-ING-41, currently in clinical trials. Uniquely in BCLs with low TRAF3, GSK3 inhibition caused increased loss of the TRAF3-regulated, anti-apoptotic protein Mcl-1. GSK3 inhibition also blocked hyperresponsiveness to IL-6 receptor signaling in TRAF3-deficient BCL cells. Together, these results support the utility of 9-ING-41 as a treatment for BCL, and suggest that a decrease or loss of TRAF3 in BCLs could act as a biomarker for increased susceptibility to GSK3 inhibitor treatment.
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Affiliation(s)
- Emma L. Hornick
- Department of Microbiology and Immunology, The University of Iowa, Iowa City, IA 52242, USA
| | - Laura L. Stunz
- Department of Microbiology and Immunology, The University of Iowa, Iowa City, IA 52242, USA
- Veterans Administration Medical Center, Iowa City, IA 52242, USA
| | - Shakoora Sabree
- Graduate Program in Immunology and MSTP Program, The University of Iowa, Iowa City, IA 52242, USA
| | - Xiaosheng Wu
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Thomas E. Witzig
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | - Gail A. Bishop
- Department of Microbiology and Immunology, The University of Iowa, Iowa City, IA 52242, USA
- Veterans Administration Medical Center, Iowa City, IA 52242, USA
- Graduate Program in Immunology and MSTP Program, The University of Iowa, Iowa City, IA 52242, USA
- Correspondence:
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9
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Han B, Zhao Y, Yao J, Li N, Fang T, Wang Y, Meng Z, Liu W. Proteomics on the role of muscone in the "consciousness-restoring resuscitation" effect of musk on ischemic stroke. JOURNAL OF ETHNOPHARMACOLOGY 2022; 296:115475. [PMID: 35718056 DOI: 10.1016/j.jep.2022.115475] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/01/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Musk is a representative drug of aroma-relieving traditional Chinese medicine, and it is a commonly used traditional Chinese medicine for the treatment of ischemic stroke. Muscone is the core medicinal component of musk. AIM OF THE STUDY We sought to identify the target of muscone in the treatment of ischemic stroke using network pharmacology, an animal model of ischemic stroke, and differential proteomics. MATERIALS AND METHODS The drug targets of muscone in the treatment of ischemic stroke were predicted and analyzed using information derived from sources such as the Traditional Chinese Medicine Systems Pharmacology database and Swiss Target Prediction tool. The animal model of focal cerebral ischemia was established by suture-based occlusion of the middle cerebral artery of rats. The rats were divided into six groups: sham-operated control, model, musk, muscone1, muscone2, and muscone3. Neurological deficit scores were calculated after intragastric administration of musk or muscone. The microcirculation blood flow of the pia mater was detected using a laser speckle blood flow meter. The cerebral infarction rate was detected by 2,3,5-triphenyltetrazolium chloride staining. The necrosis rate of the cerebral cortex and the hippocampal neurons was detected by hematoxylin and eosin staining. Blood-brain barrier damage was detected by the Evans blue method. Quantitative proteomics analysis in the sham-operated control, model, and muscone groups was performed using tandem-mass-tags. Considering fold changes exceeding 1.2 as differential protein expression, the quantitative values were compared among groups by analysis of variance. Furthermore, a protein-protein interaction network was constructed, and differentially expressed proteins were analyzed by gene ontology (GO), and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis. RESULTS Network pharmacology identified 339 targets for the intersection of 17 components of musk and cerebral ischemia-reperfusion injury. The GO and KEGG enrichment items mainly identified regulation of neuronal synaptic structure and transfer function, synaptic neurotransmitters, and receptor activity. Zoopery showed that the model group had a higher behavioral score, cerebral infarction rate, cortical and hippocampal neuron death rate, Evans blue exudation in the brain, and bilateral pia mater microcirculation blood flow differences than the sham-operated control group (P <0.01). Compared with the model group, the behavioral score, infarction rate, hippocampal neuronal mortality, and Evans blue content decreased significantly in the musk, muscone2, and muscone3 groups (P <0.05). Proteomic analysis showed that 160 genes were differentially expressed among the sham-operated control, model, and muscone groups. GO items with high enrichment included neuronal synapses, postsynaptic signal transduction, etc. KEGG items with high enrichment included cholinergic synapses, calcium signaling pathway, dopaminergic synapses, etc. Protein interaction analysis revealed that the top three protein pairs were Ndufa10/Ndufa6, Kcna2/Kcnab2, and Gsk3b/Traf6. CONCLUSIONS Muscone can reduce neuronal necrosis, protect the blood-brain barrier, and improve the neurological damage caused by cerebral ischemia via molecular mechanisms mainly involving the regulation of neuronal synaptic connections. Muscone is an important active component responsible for the "consciousness-restoring resuscitation" effect of musk on ischemic stroke.
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Affiliation(s)
- Bingbing Han
- School of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Shandong, 250355, PR China.
| | - Yangang Zhao
- Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine Shandong, 266109, PR China.
| | - Jing Yao
- School of Nursing, Shandong University of Traditional Chinese Medicine, Shandong, 250355, PR China.
| | - Na Li
- School of Nursing, Shandong University of Traditional Chinese Medicine, Shandong, 250355, PR China.
| | - Tianhe Fang
- School of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Shandong, 250355, PR China.
| | - Yuan Wang
- School of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Shandong, 250355, PR China.
| | - Zhaoqing Meng
- Shandong Hongjitang Pharmaceutical Group Co., Ltd., Shandong, 250109, PR China.
| | - Wei Liu
- School of Nursing, Shandong University of Traditional Chinese Medicine, Shandong, 250355, PR China.
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10
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Gonadal hormone trigger the dynamic microglial alterations through Traf6/TAK1 axis that correlate with depressive behaviors. J Psychiatr Res 2022; 152:128-138. [PMID: 35724494 DOI: 10.1016/j.jpsychires.2022.06.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 04/15/2022] [Accepted: 06/10/2022] [Indexed: 11/23/2022]
Abstract
Gonadal hormone deficiency is associated with the development of depression, but what mediates this association is unclear. To test the possibility that it reflects neuroimmune and neuroinflammatory processes, we analyzed how gonadal hormone deficiency and replacement affect microglial activation and inflammatory response during the development of depressive symptomatology in gonadectomized male mice. Testosterone level and the ratio of testosterone to estradiol in the serum and brain tissue of mice exposed to 3-35 days of chronic unpredictable stress were much lower than in control animals. Gonadal hormone sustained deficiency in gonadectomized mice and subsequent led to acute inflammation at day 7 following castration. Activating microglia in mice exposed to 7 days of castration subsequently suppressed the proliferation of microglia, such that their numbers in hippocampus and cortex were lower than the numbers in sham-operated mice after 30 days of castration. Here, we showed that gonadal hormone deficiency induces Traf6-mediated microglia activation, a type of inflammatory mediator. Microglia treated in this way for long time showed down-regulation of activation markers, abnormal morphology and depressive-like behaviors. Restoration and maintenance of a fixed ratio of testosterone to estradiol significantly suppressed microglial activation, neuronal necroptosis, dramatically inducing hippocampal neurogenesis and reducing depressive behaviors via the suppression of Traf6/TAK1 pathway. These findings suggest that activated or immunoreactive microglia contribute to gonadal hormone deficiency-induced depression, as well as testosterone and estradiol exert synergistic anti-depressant effects via suppressing microglial activaton in gonadectomized male mice, possibly through Traf6 signaling.
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11
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Liu J, Li L, Xie P, Zhao X, Shi D, Zhang Y, Pan C, Li T. Sevoflurane induced neurotoxicity in neonatal mice links to a GSK3β/Drp1-dependent mitochondrial fission and apoptosis. Free Radic Biol Med 2022; 181:72-81. [PMID: 35122996 DOI: 10.1016/j.freeradbiomed.2022.01.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Revised: 01/27/2022] [Accepted: 01/31/2022] [Indexed: 12/01/2022]
Abstract
Mitochondria damage and apoptosis were found associated with sevoflurane induced neurotoxicity in developing brains of rodent and neuro cell lines. The detailed upstream mechanism remains unclear. This study explored whether sevoflurane induces neurotoxicity by activating a GSK3β (glycogen synthase kinase 3β)/Drp1 (dynamin-related protein-1)-dependent mitochondrial fission and apoptosis. Our results showed that sevoflurane exposure promoted mitochondria fission in hippocampus of neonatal mice, resulted in a prolonged escape latency from P32 (32-day-postnatal) to P35, and decreased platform crossing times on P36 as compared to the control treatment. Additionally, sevoflurane upregulated GSK3β stability and activation, promoted phosphorylation of Drp1 at Ser616 along with its translocation to mitochondria and resulted in increasing cytochrome c and cleaved casepase-3 in hippocampus of neonatal mice and in human SK-N-SH cells. Simultaneously, sevoflurane promoted the interaction between Drp1 and GSK3β. Furthermore, GSK3β activated phosphorylation of Drp1 at Ser616, induced mitochondrial fission, loss of mitochondrial membrane potential (MMP) and apoptosis in SK-N-SH cells, which was attenuated by TDZD-8, an inhibitor of GSK3β. In conclusion, sevoflurane induced neurotoxicity links to a GSK3β/Drp1 dependent mitochondrial fission and apoptosis.
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Affiliation(s)
- Jinsheng Liu
- Department of Anesthesiology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Li Li
- Department of Gastroenterology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Ping Xie
- Department of Cell Biology, Municipal Laboratory for Liver Protection and Regulation of Regeneration, Capital Medical University, Beijing, China
| | - Xiaoyan Zhao
- Department of Anesthesiology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Dongjing Shi
- Department of Anesthesiology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Yan Zhang
- College of Life Science, Peking University, Beijing, China
| | - Chuxiong Pan
- Department of Anesthesiology, Beijing Stomatological Hospital, Capital Medical University, Beijing, China.
| | - Tianzuo Li
- Department of Anesthesiology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China.
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12
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Tredicine M, Camponeschi C, Pirolli D, Lucchini M, Valentini M, Geloso MC, Mirabella M, Fidaleo M, Righino B, Moliterni C, Giorda E, Rende M, De Rosa MC, Foti M, Constantin G, Ria F, Di Sante G. A TLR/CD44 axis regulates T cell trafficking in experimental and human multiple sclerosis. iScience 2022; 25:103763. [PMID: 35128357 PMCID: PMC8804271 DOI: 10.1016/j.isci.2022.103763] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/28/2021] [Accepted: 01/07/2022] [Indexed: 12/14/2022] Open
Abstract
In the pathogenesis of autoimmune disorders, the modulation of leukocytes' trafficking plays a central role, still poorly understood. Here, we focused on the effect of TLR2 ligands in trafficking of T helper cells through reshuffling of CD44 isoforms repertoire. Concurrently, strain background and TLR2 haplotype affected Wnt/β-catenin signaling pathway and expression of splicing factors. During EAE, mCD44 v9- v 10 was specifically enriched in the forebrain and showed an increased ability to bind stably to osteopontin. Similarly, we observed that hCD44 v7 was highly enriched in cells of cerebrospinal fluid from MS patients with active lesions. Moreover, TLRs engagement modulated the composition of CD44 variants also in human T helper cells, supporting the hypothesis that pathogens or commensals, through TLRs, in turn modulate the repertoire of CD44 isoforms, thereby controlling the distribution of lesions in the CNS. The interference with this mechanism(s) represents a potential tool for prevention and treatment of autoimmune relapses and exacerbations.
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Affiliation(s)
- Maria Tredicine
- Department of Translational Medicine and Surgery, Section of General Pathology, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy
| | - Chiara Camponeschi
- Department of Translational Medicine and Surgery, Section of General Pathology, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy
| | - Davide Pirolli
- Institute of Chemical Sciences and Technologies “Giulio Natta” (SCITEC) -CNR, Largo Francesco Vito 1,00168 Rome, Italy
| | - Matteo Lucchini
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli1-8,00168 Rome, Italy
- Centro di ricerca per la Sclerosi Multipla (CERSM), Università Cattolica del Sacro Cuore, Largo Francesco Vito 1,00168 Rome, Italy
| | - Mariagrazia Valentini
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli1-8,00168 Rome, Italy
| | - Maria Concetta Geloso
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli1-8,00168 Rome, Italy
- Department of Neuroscience, Section of Human Anatomy, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1,00168 Rome, Italy
| | - Massimiliano Mirabella
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli1-8,00168 Rome, Italy
- Centro di ricerca per la Sclerosi Multipla (CERSM), Università Cattolica del Sacro Cuore, Largo Francesco Vito 1,00168 Rome, Italy
| | - Marco Fidaleo
- Department of Biology and Biotechnology Charles Darwin, University of Rome Sapienza,00185 Rome, Italy
| | - Benedetta Righino
- Institute of Chemical Sciences and Technologies “Giulio Natta” (SCITEC) -CNR, Largo Francesco Vito 1,00168 Rome, Italy
| | - Camilla Moliterni
- Department of Biology and Biotechnology Charles Darwin, University of Rome Sapienza,00185 Rome, Italy
| | - Ezio Giorda
- Core Facilities di Ricerca, Ospedale Pediatrico Bambino Gesù Roma – IRCCS, V.le Ferdinando Baldelli,40,00146 Roma, Italy
| | - Mario Rende
- Department of Medicine and Surgery, Section of Human, Clinic and Forensic Anatomy, University of Perugia, Piazza L. Severi, 06132 Perugia, Italy
| | - Maria Cristina De Rosa
- Institute of Chemical Sciences and Technologies “Giulio Natta” (SCITEC) -CNR, Largo Francesco Vito 1,00168 Rome, Italy
| | - Maria Foti
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Gabriela Constantin
- Department of Medicine, Section of General Pathology, University of Verona, Strada le Grazie 8,37134 Verona, Italy
| | - Francesco Ria
- Department of Translational Medicine and Surgery, Section of General Pathology, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli1-8,00168 Rome, Italy
| | - Gabriele Di Sante
- Department of Translational Medicine and Surgery, Section of General Pathology, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy
- Department of Medicine and Surgery, Section of Human, Clinic and Forensic Anatomy, University of Perugia, Piazza L. Severi, 06132 Perugia, Italy
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13
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Jian Y, Kong L, Xu H, Shi Y, Huang X, Zhong W, Huang S, Li Y, Shi D, Xiao Y, Yang M, Li S, Chen X, Ouyang Y, Hu Y, Chen X, Song L, Ye R, Wei W. Protein phosphatase 1 regulatory inhibitor subunit 14C promotes triple-negative breast cancer progression via sustaining inactive glycogen synthase kinase 3 beta. Clin Transl Med 2022; 12:e725. [PMID: 35090098 PMCID: PMC8797469 DOI: 10.1002/ctm2.725] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/28/2021] [Accepted: 01/17/2022] [Indexed: 11/21/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is fast-growing and highly metastatic with the poorest prognosis among the breast cancer subtypes. Inactivation of glycogen synthase kinase 3 beta (GSK3β) plays a vital role in the aggressiveness of TNBC; however, the underlying mechanism for sustained GSK3β inhibition remains largely unknown. Here, we find that protein phosphatase 1 regulatory inhibitor subunit 14C (PPP1R14C) is upregulated in TNBC and relevant to poor prognosis in patients. Overexpression of PPP1R14C facilitates cell proliferation and the aggressive phenotype of TNBC cells, whereas the depletion of PPP1R14C elicits opposite effects. Moreover, PPP1R14C is phosphorylated and activated by protein kinase C iota (PRKCI) at Thr73. p-PPP1R14C then represses Ser/Thr protein phosphatase type 1 (PP1) to retain GSK3β phosphorylation at high levels. Furthermore, p-PPP1R14C recruits E3 ligase, TRIM25, toward the ubiquitylation and degradation of non-phosphorylated GSK3β. Importantly, the blockade of PPP1R14C phosphorylation inhibits xenograft tumorigenesis and lung metastasis of TNBC cells. These findings provide a novel mechanism for sustained GSK3β inactivation in TNBC and suggest that PPP1R14C might be a potential therapeutic target.
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Affiliation(s)
- Yunting Jian
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
- Department of Pathology, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Key Laboratory for Major Obstetric Diseases of Guangdong ProvinceThe Third Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Lingzhi Kong
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Hongyi Xu
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
- Department of Breast SurgerySun Yat‐sen University Cancer CenterGuangzhouChina
| | - Yawei Shi
- Department of Thyroid and Breast SurgeryThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Xinjian Huang
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Wenjing Zhong
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
- Department of Breast SurgerySun Yat‐sen University Cancer CenterGuangzhouChina
| | - Shumei Huang
- Department of Biochemistry, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
| | - Yue Li
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Dongni Shi
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Yunyun Xiao
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Muwen Yang
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Siqi Li
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
- Department of Breast SurgerySun Yat‐sen University Cancer CenterGuangzhouChina
| | - Xiangfu Chen
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Ying Ouyang
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Yameng Hu
- Department of Biochemistry, Zhongshan School of MedicineSun Yat‐sen UniversityGuangzhouChina
| | - Xin Chen
- Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences; Guangzhou Institute of OncologyTumor Hospital, Guangzhou Medical UniversityGuangzhouChina
| | - Libing Song
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
| | - Runyi Ye
- Department of Thyroid and Breast SurgeryThe First Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Weidong Wei
- Department of Experimental Research, Sun Yat‐sen University Cancer Center, State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineGuangzhouChina
- Department of Breast SurgerySun Yat‐sen University Cancer CenterGuangzhouChina
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14
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Piazzi M, Bavelloni A, Cenni V, Faenza I, Blalock WL. Revisiting the Role of GSK3, A Modulator of Innate Immunity, in Idiopathic Inclusion Body Myositis. Cells 2021; 10:cells10113255. [PMID: 34831477 PMCID: PMC8625526 DOI: 10.3390/cells10113255] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 12/13/2022] Open
Abstract
Idiopathic or sporadic inclusion body myositis (IBM) is the leading age-related (onset >50 years of age) autoimmune muscular pathology, resulting in significant debilitation in affected individuals. Once viewed as primarily a degenerative disorder, it is now evident that much like several other neuro-muscular degenerative disorders, IBM has a major autoinflammatory component resulting in chronic inflammation-induced muscle destruction. Thus, IBM is now considered primarily an inflammatory pathology. To date, there is no effective treatment for sporadic inclusion body myositis, and little is understood about the pathology at the molecular level, which would offer the best hopes of at least slowing down the degenerative process. Among the previously examined potential molecular players in IBM is glycogen synthase kinase (GSK)-3, whose role in promoting TAU phosphorylation and inclusion bodies in Alzheimer’s disease is well known. This review looks to re-examine the role of GSK3 in IBM, not strictly as a promoter of TAU and Abeta inclusions, but as a novel player in the innate immune system, discussing some of the recent roles discovered for this well-studied kinase in inflammatory-mediated pathology.
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Affiliation(s)
- Manuela Piazzi
- “Luigi Luca Cavalli-Sforza” Istituto di Genetica Molecolare-Consiglio Nazionale delle Ricerche (IGM-CNR), 40136 Bologna, Italy; (M.P.); (V.C.)
- IRCCS, Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Alberto Bavelloni
- Laboratorio di Oncologia Sperimentale, Istituto Ortopedico Rizzoli, 40136 Bologna, Italy;
| | - Vittoria Cenni
- “Luigi Luca Cavalli-Sforza” Istituto di Genetica Molecolare-Consiglio Nazionale delle Ricerche (IGM-CNR), 40136 Bologna, Italy; (M.P.); (V.C.)
- IRCCS, Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Irene Faenza
- Dipartimento di Scienze Biomediche and Neuromotorie, Università di Bologna, 40136 Bologna, Italy;
| | - William L. Blalock
- “Luigi Luca Cavalli-Sforza” Istituto di Genetica Molecolare-Consiglio Nazionale delle Ricerche (IGM-CNR), 40136 Bologna, Italy; (M.P.); (V.C.)
- IRCCS, Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
- Correspondence:
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15
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Mathien S, Tesnière C, Meloche S. Regulation of Mitogen-Activated Protein Kinase Signaling Pathways by the Ubiquitin-Proteasome System and Its Pharmacological Potential. Pharmacol Rev 2021; 73:263-296. [PMID: 34732541 DOI: 10.1124/pharmrev.120.000170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Mitogen-activated protein kinase (MAPK) cascades are evolutionarily conserved signaling pathways that play essential roles in transducing extracellular environmental signals into diverse cellular responses to maintain homeostasis. These pathways are classically organized into an architecture of three sequentially acting protein kinases: a MAPK kinase kinase that phosphorylates and activates a MAPK kinase, which in turn phosphorylates and activates the effector MAPK. The activity of MAPKs is tightly regulated by phosphorylation of their activation loop, which can be modulated by positive and negative feedback mechanisms to control the amplitude and duration of the signal. The signaling outcomes of MAPK pathways are further regulated by interactions of MAPKs with scaffolding and regulatory proteins. Accumulating evidence indicates that, in addition to these mechanisms, MAPK signaling is commonly regulated by ubiquitin-proteasome system (UPS)-mediated control of the stability and abundance of MAPK pathway components. Notably, the biologic activity of some MAPKs appears to be regulated mainly at the level of protein turnover. Recent studies have started to explore the potential of targeted protein degradation as a powerful strategy to investigate the biologic functions of individual MAPK pathway components and as a new therapeutic approach to overcome resistance to current small-molecule kinase inhibitors. Here, we comprehensively review the mechanisms, physiologic importance, and pharmacological potential of UPS-mediated protein degradation in the control of MAPK signaling. SIGNIFICANCE STATEMENT: Accumulating evidence highlights the importance of targeted protein degradation by the ubiquitin-proteasome system in regulating and fine-tuning the signaling output of mitogen-activated protein kinase (MAPK) pathways. Manipulating protein levels of MAPK cascade components may provide a novel approach for the development of selective pharmacological tools and therapeutics.
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Affiliation(s)
- Simon Mathien
- Institute for Research in Immunology and Cancer, Montreal, Quebec, Canada (S.Ma., C.T., S.Me.); and Molecular Biology Program, Faculty of Medicine (C.T., S.Me.) and Department of Pharmacology and Physiology (S.Me.), Université de Montréal, Montreal, Quebec, Canada
| | - Chloé Tesnière
- Institute for Research in Immunology and Cancer, Montreal, Quebec, Canada (S.Ma., C.T., S.Me.); and Molecular Biology Program, Faculty of Medicine (C.T., S.Me.) and Department of Pharmacology and Physiology (S.Me.), Université de Montréal, Montreal, Quebec, Canada
| | - Sylvain Meloche
- Institute for Research in Immunology and Cancer, Montreal, Quebec, Canada (S.Ma., C.T., S.Me.); and Molecular Biology Program, Faculty of Medicine (C.T., S.Me.) and Department of Pharmacology and Physiology (S.Me.), Université de Montréal, Montreal, Quebec, Canada
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16
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Tang N, Xu S, Song T, Qiu Y, He J, Fu X. Zinc finger protein 91 accelerates tumour progression by activating β-catenin signalling in pancreatic cancer. Cell Prolif 2021; 54:e13031. [PMID: 33755268 PMCID: PMC8088462 DOI: 10.1111/cpr.13031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/02/2021] [Accepted: 03/06/2021] [Indexed: 12/11/2022] Open
Abstract
Objectives ZFP91, an E3 ligase, has been reported to possess cancer‐promoting functions. This study aimed to elucidate the exact role of ZFP91 in tumour progression of pancreatic cancer and underlying mechanisms. Materials and Methods We analysed the correlation between ZFP91 expression and pancreatic cancer through TCGA and GEO data sets. Growth curve, colony formation, wound healing and transwell invasion assays were conducted to evaluate proliferation, migration and invasion of lentivirus transfected pancreatic cancer cells. GSEA and Western blot analysis were performed to validate the regulatory effect of ZFP91 on β‐catenin. Drug response curve and orthotopic implantation model reflected the sensitivity of chemotherapies. Results ZFP91 overexpression is prevalent in pancreatic cancer and negatively correlated with overall survival. ZFP91 knock‐down attenuated proliferation, migration and invasion of pancreatic cancer cells. β‐catenin was a downstream gene of ZFP91, and its agonist could reverse the phenotype. ZFP91 promoted EMT and chemoresistance in pancreatic cancer. Conclusions We demonstrated that ZFP91 promoted pancreatic cancer proliferation, migration and invasion through activating β‐catenin signalling. EMT and chemoresistance were also regulated by ZFP91. ZFP91 might be a potential therapeutic target for pancreatic cancer.
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Affiliation(s)
- Neng Tang
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Shanshan Xu
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Taiyu Song
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Yudong Qiu
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Jian He
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Xiao Fu
- Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
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17
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Patel S, Werstuck GH. Macrophage Function and the Role of GSK3. Int J Mol Sci 2021; 22:ijms22042206. [PMID: 33672232 PMCID: PMC7926541 DOI: 10.3390/ijms22042206] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 01/18/2023] Open
Abstract
Macrophages are present in nearly all vertebrate tissues, where they respond to a complex variety of regulatory signals to coordinate immune functions involved in tissue development, metabolism, homeostasis, and repair. Glycogen synthase kinase 3 (GSK3) is a ubiquitously expressed protein kinase that plays important roles in multiple pathways involved in cell metabolism. Dysregulation of GSK3 has been implicated in several prevalent metabolic disorders, and recent findings have highlighted the importance of GSK3 activity in the regulation of macrophages, especially with respect to the initiation of specific pathologies. This makes GSK3 a potential therapeutic target for the development of novel drugs to modulate immunometabolic responses. Here, we summarize recent findings that have contributed to our understanding of how GSK3 regulates macrophage function, and we discuss the role of GSK3 in the development of metabolic disorders and diseases.
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Affiliation(s)
- Sarvatit Patel
- Thrombosis and Atherosclerosis Research Institute, 237 Barton Street E, Hamilton, ON L9L 2X2, Canada;
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main St W, Hamilton, ON L8S 4L8, Canada
| | - Geoff H. Werstuck
- Thrombosis and Atherosclerosis Research Institute, 237 Barton Street E, Hamilton, ON L9L 2X2, Canada;
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main St W, Hamilton, ON L8S 4L8, Canada
- Department of Medicine, McMaster University, 1280 Main St W, Hamilton, ON L8S 4L8, Canada
- Correspondence: ; Tel.: +1-905-521-2100 (ext. 40747)
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18
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Liu X, Wang K, Wei X, Xie T, Lv B, Zhou Q, Wang X. Interaction of NF-κB and Wnt/β-catenin Signaling Pathways in Alzheimer's Disease and Potential Active Drug Treatments. Neurochem Res 2021; 46:711-731. [PMID: 33523396 DOI: 10.1007/s11064-021-03227-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 11/24/2020] [Accepted: 01/02/2021] [Indexed: 12/25/2022]
Abstract
The most important neuropathological features of Alzheimer's disease (AD) are extracellular amyloid-β protein (Aβ) deposition, tau protein hyperphosphorylation and activation of neurometabolic reaction in the brain accompanied by neuronal and synaptic damage, and impaired learning and memory function. According to the amyloid cascade hypothesis, increased Aβ deposits in the brain to form the core of the senile plaques that initiate cascade reactions, affecting the synapses and stimulating activation of microglia, resulting in neuroinflammation. A growing number of studies has shown that NF-κB and Wnt/β-catenin pathways play important roles in neurodegenerative diseases, especially AD. In this review, we briefly introduce the connection between neuroinflammation-mediated synaptic dysfunction in AD and elaborated on the mechanism of these two signaling pathways in AD-related pathological changes, as well as their interaction. Based on our interest in natural compounds, we also briefly introduce and conduct preliminary screening of potential therapeutics for AD.
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Affiliation(s)
- Xiao Liu
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Kaiyue Wang
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Xing Wei
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Tian Xie
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Bin Lv
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Qian Zhou
- Department of Anatomy, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishiku, Kitakyushu, 807-8555, Japan
| | - Xiaoying Wang
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China. .,College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China.
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19
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Autophagy and the Wnt signaling pathway: A focus on Wnt/β-catenin signaling. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1868:118926. [PMID: 33316295 DOI: 10.1016/j.bbamcr.2020.118926] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 11/07/2020] [Accepted: 12/05/2020] [Indexed: 12/11/2022]
Abstract
Cellular homeostasis and adaptation to various environmental conditions are importantly regulated by the sophisticated mechanism of autophagy and its crosstalk with Wnt signaling and other developmental pathways. Both autophagy and Wnt signaling are involved in embryogenesis and differentiation. Autophagy is responsible for degradation and recycling of cytosolic materials by directing them to lysosomes through the phagophore compartment. A dual feedback mechanism regulates the interface between autophagy and Wnt signaling pathways. During nutrient deprivation, β-catenin and Dishevelled (essential Wnt signaling proteins) are targeted for autophagic degradation by LC3. When Wnt signaling is activated, β-catenin acts as a corepressor of one of the autophagy proteins, p62. In contrast, another key Wnt signaling protein, GSK3β, negatively regulates the Wnt pathway and has been shown to induce autophagy by phosphorylation of the TSC complex. This article reviews the interplay between autophagy and Wnt signaling, describing how β-catenin functions as a key cellular integration point coordinating proliferation with autophagy, and it discusses the clinical importance of the crosstalk between these mechanisms.
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20
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Ni M, Zhou H, Zhang J, Jin D, Lu T, Busuttil RW, Kupiec-Weglinski JW, Wang X, Zhai Y. Isoform- and Cell Type-Specific Roles of Glycogen Synthase Kinase 3 N-Terminal Serine Phosphorylation in Liver Ischemia Reperfusion Injury. THE JOURNAL OF IMMUNOLOGY 2020; 205:1147-1156. [PMID: 32680958 DOI: 10.4049/jimmunol.2000397] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 06/21/2020] [Indexed: 12/31/2022]
Abstract
Glycogen synthase kinase 3 (Gsk3) α and β are both constitutively active and inhibited upon stimulation by N-terminal serine phosphorylation. Although roles of active Gsk3 in liver ischemia reperfusion injury (IRI) have been well appreciated, whether Gsk3 N-terminal serine phosphorylation has any functional significance in the disease process remains unclear. In a murine liver partial warm ischemia model, we studied Gsk3 N-terminal serine mutant knock-in (KI) mice and showed that liver IRI was decreased in Gsk3αS21A but increased in Gsk3βS9A mutant KI mice. Bone marrow chimeric experiments revealed that the Gsk3α, but not β, mutation in liver parenchyma protected from IRI, and both mutations in bone marrow-derived cells exacerbated liver injuries. Mechanistically, mutant Gsk3α protected hepatocytes from inflammatory (TNF-α) cell death by the activation of HIV-1 TAT-interactive protein 60 (TIP60)-mediated autophagy pathway. The pharmacological inhibition of TIP60 or autophagy diminished the protection of the Gsk3α mutant hepatocytes from inflammatory cell death in vitro and the Gsk3α mutant KI mice from liver IRI in vivo. Thus, Gsk3 N-terminal serine phosphorylation inhibits liver innate immune activation but suppresses hepatocyte autophagy in response to inflammation. Gsk3 αS21, but not βS9, mutation is sufficient to sustain Gsk4 activities in hepatocytes and protect livers from IRI via TIP60 activation.
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Affiliation(s)
- Ming Ni
- Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095.,Department of Liver Surgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, China
| | - Haoming Zhou
- Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095.,Department of Liver Surgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, China
| | - Jing Zhang
- Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095
| | - Dan Jin
- Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095.,Department of Obstetrics and Gynecology, Shanghai Jiaotong University, Shanghai 200025, China; and
| | - Tianfei Lu
- Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095.,Liver Surgery, Renji Hospital, Shanghai Jiaotong University, Shanghai 200025, China
| | - Ronald W Busuttil
- Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095
| | - Jerzy W Kupiec-Weglinski
- Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095
| | - Xuehao Wang
- Department of Liver Surgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210008, China;
| | - Yuan Zhai
- Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095;
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21
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Loss of Function Genetic Screen Identifies ATM Kinase as a Positive Regulator of TLR3-Mediated NF-κB Activation. iScience 2020; 23:101356. [PMID: 32731169 PMCID: PMC7393402 DOI: 10.1016/j.isci.2020.101356] [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: 03/25/2018] [Revised: 05/08/2019] [Accepted: 07/08/2020] [Indexed: 12/11/2022] Open
Abstract
TLR3, a major innate immune pattern recognition receptor of RNA viruses, triggers inflammatory response through the transcription factor NF-κB. However, a genome-wide understanding of the genes and mechanisms regulating TLR3-mediated NF-κB activation is incomplete. We herein report the results of a human genome-wide RNAi screen that identified 591 proteins regulating TLR3-mediated NF-κB response. Bioinformatics analysis revealed several signaling modules including linear ubiquitination assembly complex and mediator protein complex network as regulators of TLR3 signaling. We further characterized the kinase ATM as a previously unknown positive regulator of TLR3 signaling. TLR3 pathway stimulation induced ATM phosphorylation and promoted interaction of ATM with TAK1, NEMO, IKKα, and IKKβ. Furthermore, ATM was determined to coordinate the assembly of NEMO with TAK1, IKKα, and IKKβ during TLR3 signaling. This study provided a comprehensive understanding of TLR3-mediated inflammatory signaling regulation and established a role for ATM in innate immune response. TLR3 is an antiviral innate immune pattern recognition receptor ATM kinase regulates TLR3-mediated inflammatory response ATM kinase facilitates assembly of NEMO with TAK1, IKKα, and IKKβ during TLR3 signaling
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22
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Liu J, Zhu YM, Guo Y, Lin L, Wang ZX, Gu F, Dong XY, Zhou M, Wang YF, Zhang HL. Inhibition of GSK3β and RIP1K Attenuates Glial Scar Formation Induced by Ischemic Stroke via Reduction of Inflammatory Cytokine Production. Front Pharmacol 2020; 11:812. [PMID: 32595496 PMCID: PMC7303311 DOI: 10.3389/fphar.2020.00812] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 05/18/2020] [Indexed: 01/05/2023] Open
Abstract
In the chronic phase following ischemic stroke, glial scars can prevent axonal regeneration and the intensification of inflammation. The protective effect of inhibition of glycogen synthase kinase-3β (GSK3β) or receptor-interacting protein 1 kinase (RIP1K) on ischemic stroke has been previously reported. The current study examined the effects of RIP1K and GSK3β on ischemic stroke-induced glial scar formation. To investigate this, we used an in vivo model of ischemic stroke based on middle cerebral artery occlusion for 90 min followed by reperfusion for 7 d, and an in vitro model in primary cultured astrocytes involving oxygen and glucose deprivation for 6 h followed by reoxygenation for 24 h. Both in vivo and in vitro, we found that SB216763, a GSK3β inhibitor, and necrostatin-1 (Nec-1), a RIP1K inhibitor, decreased levels of glial scar markers, including glial fibrillary acidic protein (GFAP), neurocan, and phosphacan. SB216763 and Nec-1 also decreased levels of inflammatory related cytokines, including interleukin-6 (IL-6), interleukin-1 β (IL-1β), and tumor necrosis factor-α (TNF-α). However, only Nec-1 increased the level of interleukin-1 receptor antagonist. Concurrent neutralization of TNF-α, IL-1β, and IL-6 with their antibodies provided better reduction in oxygen and glucose deprivation-induced increases in scar markers than obtained with separate use of each antibody. Further investigations showed that SB216763 reduced the levels of necroptosis-related proteins, including RIP1K, p-RIP1K, RIP3K, p-RIP3K, mixed lineage kinase domain-like protein (MLKL), and p-MLKL, while Nec-1 decreased the expression of p-GSK3β. Compared with Nec-1 (10 μM) and SB216763 (1 μM) alone, Nec-1 and SB216763 in combination reduced levels of GFAP, neurocan, and inflammatory-related cytokines. In conclusion, inhibition of GSK3β or RIP1K reduced glial scar formation induced by ischemic stroke. The underlying mechanisms might be at least, partially related to reducing levels of inflammatory-related cytokines and to blocking an interaction between GSK3β- and RIP1K-mediated pathways.
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Affiliation(s)
- Jin Liu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Department of Pharmacology and Laboratory of Cerebrovascular Pharmacology, College of Pharmaceutical Science, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China
| | - Yong-Ming Zhu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Department of Pharmacology and Laboratory of Cerebrovascular Pharmacology, College of Pharmaceutical Science, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China
| | - Yi Guo
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Department of Pharmacology and Laboratory of Cerebrovascular Pharmacology, College of Pharmaceutical Science, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China
| | - Liang Lin
- Department of Anesthesiology, Department of Neurosurgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Zhan-Xiang Wang
- Department of Anesthesiology, Department of Neurosurgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Feng Gu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Department of Pharmacology and Laboratory of Cerebrovascular Pharmacology, College of Pharmaceutical Science, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China
| | - Xin-Yi Dong
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Department of Pharmacology and Laboratory of Cerebrovascular Pharmacology, College of Pharmaceutical Science, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China
| | - Ming Zhou
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Department of Pharmacology and Laboratory of Cerebrovascular Pharmacology, College of Pharmaceutical Science, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China
| | - Yi-Fan Wang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Department of Pharmacology and Laboratory of Cerebrovascular Pharmacology, College of Pharmaceutical Science, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China
| | - Hui-Ling Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Department of Pharmacology and Laboratory of Cerebrovascular Pharmacology, College of Pharmaceutical Science, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Soochow University, Suzhou, China
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23
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Regulation of Wnt Signaling through Ubiquitination and Deubiquitination in Cancers. Int J Mol Sci 2020; 21:ijms21113904. [PMID: 32486158 PMCID: PMC7311976 DOI: 10.3390/ijms21113904] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/28/2020] [Accepted: 05/29/2020] [Indexed: 12/11/2022] Open
Abstract
The Wnt signaling pathway plays important roles in embryonic development, homeostatic processes, cell differentiation, cell polarity, cell proliferation, and cell migration via the β-catenin binding of Wnt target genes. Dysregulation of Wnt signaling is associated with various diseases such as cancer, aging, Alzheimer’s disease, metabolic disease, and pigmentation disorders. Numerous studies entailing the Wnt signaling pathway have been conducted for various cancers. Diverse signaling factors mediate the up- or down-regulation of Wnt signaling through post-translational modifications (PTMs), and aberrant regulation is associated with several different malignancies in humans. Of the numerous PTMs involved, most Wnt signaling factors are regulated by ubiquitination and deubiquitination. Ubiquitination by E3 ligase attaches ubiquitins to target proteins and usually induces proteasomal degradation of Wnt signaling factors such as β-catenin, Axin, GSK3, and Dvl. Conversely, deubiquitination induced by the deubiquitinating enzymes (DUBs) detaches the ubiquitins and modulates the stability of signaling factors. In this review, we discuss the effects of ubiquitination and deubiquitination on the Wnt signaling pathway, and the inhibitors of DUBs that can be applied for cancer therapeutic strategies.
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24
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Marineau A, Khan KA, Servant MJ. Roles of GSK-3 and β-Catenin in Antiviral Innate Immune Sensing of Nucleic Acids. Cells 2020; 9:cells9040897. [PMID: 32272583 PMCID: PMC7226782 DOI: 10.3390/cells9040897] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/03/2020] [Accepted: 04/05/2020] [Indexed: 12/23/2022] Open
Abstract
The rapid activation of the type I interferon (IFN) antiviral innate immune response relies on ubiquitously expressed RNA and DNA sensors. Once engaged, these nucleotide-sensing receptors use distinct signaling modules for the rapid and robust activation of mitogen-activated protein kinases (MAPKs), the IκB kinase (IKK) complex, and the IKK-related kinases IKKε and TANK-binding kinase 1 (TBK1), leading to the subsequent activation of the activator protein 1 (AP1), nuclear factor-kappa B (NF-κB), and IFN regulatory factor 3 (IRF3) transcription factors, respectively. They, in turn, induce immunomodulatory genes, allowing for a rapid antiviral cellular response. Unlike the MAPKs, the IKK complex and the IKK-related kinases, ubiquitously expressed glycogen synthase kinase 3 (GSK-3) α and β isoforms are active in unstimulated resting cells and are involved in the constitutive turnover of β-catenin, a transcriptional coactivator involved in cell proliferation, differentiation, and lineage commitment. Interestingly, studies have demonstrated the regulatory roles of both GSK-3 and β-catenin in type I IFN antiviral innate immune response, particularly affecting the activation of IRF3. In this review, we summarize current knowledge on the mechanisms by which GSK-3 and β-catenin control the antiviral innate immune response to RNA and DNA virus infections.
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Affiliation(s)
- Alexandre Marineau
- Faculty of Pharmacy, Université de Montréal, Montréal, QC H3C3J7, Canada;
| | - Kashif Aziz Khan
- Department of Biology, York University, Toronto, ON M3J1P3, Canada;
| | - Marc J. Servant
- Faculty of Pharmacy, Université de Montréal, Montréal, QC H3C3J7, Canada;
- Réseau Québécois de Recherche sur les Médicaments (RQRM), Montréal, QC H3T1C5, Canada
- Correspondence: ; Tel.: +1-514-343-7966
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25
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Lin X, Li AM, Li YH, Luo RC, Zou YJ, Liu YY, Liu C, Xie YY, Zuo S, Liu Z, Liu Z, Fang WY. Silencing MYH9 blocks HBx-induced GSK3β ubiquitination and degradation to inhibit tumor stemness in hepatocellular carcinoma. Signal Transduct Target Ther 2020; 5:13. [PMID: 32296025 PMCID: PMC7018736 DOI: 10.1038/s41392-020-0111-4] [Citation(s) in RCA: 90] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 12/10/2019] [Accepted: 12/22/2019] [Indexed: 02/06/2023] Open
Abstract
MYH9 has dual functions in tumors. However, its role in inducing tumor stemness in hepatocellular carcinoma (HCC) is not yet determined. Here, we found that MYH9 is an effective promoter of tumor stemness that facilitates hepatocellular carcinoma pathogenesis. Importantly, targeting MYH9 remarkably improved the survival of hepatocellular carcinoma-bearing mice and promoted sorafenib sensitivity of hepatocellular carcinoma cells in vivo. Mechanistic analysis suggested that MYH9 interacted with GSK3β and reduced its protein expression by ubiquitin-mediated degradation, which therefore dysregulated the β-catenin destruction complex and induced the downstream tumor stemness phenotype, epithelial-mesenchymal transition, and c-Jun signaling in HCC. C-Jun transcriptionally stimulated MYH9 expression and formed an MYH9/GSK3β/β-catenin/c-Jun feedback loop. X protein is a hepatitis B virus (HBV)-encoded key oncogenic protein that promotes HCC pathogenesis. Interestingly, we observed that HBV X protein (HBX) interacted with MYH9 and induced its expression by modulating GSK3β/β-catenin/c-Jun signaling. Targeting MYH9 blocked HBX-induced GSK3β ubiquitination to activate the β-catenin destruction complex and suppressed cancer stemness and EMT. Based on TCGA database analysis, MYH9 was found to be elevated and conferred poor prognosis for hepatocellular carcinoma patients. In clinical samples, high MYH9 expression levels predicted poor prognosis of hepatocellular carcinoma patients. These findings identify the suppression of MYH9 as an alternative approach for the effective eradication of CSC properties to inhibit cancer migration, invasion, growth, and sorafenib resistance in HCC patients. Our study demonstrated that MYH9 is a crucial therapeutic target in HCC.
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Affiliation(s)
- Xian Lin
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, People's Republic of China, 510310
| | - Ai-Min Li
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, People's Republic of China, 510310
| | - Yong-Hao Li
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, People's Republic of China, 510310
| | - Rong-Cheng Luo
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, People's Republic of China, 510310
| | - Yu-Jiao Zou
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, People's Republic of China, 510310
| | - Yi-Yi Liu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, People's Republic of China, 510310
| | - Chen Liu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, People's Republic of China, 510310
| | - Ying-Ying Xie
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, People's Republic of China, 510310
| | - Shi Zuo
- Department of Hepatobiliary Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, People's Republic of China, 550004
| | - Zhan Liu
- Department of Gastroenterology and Clinical Nutrition, The First Affiliated Hospital (People's Hospital of Hunan Province), Hunan Normal University, Changsha, Hunan, People's Republic of China, 410002
| | - Zhen Liu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, People's Republic of China, 510310. .,Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation, State Key Laboratory of Respiratory Disease, School of Basic Medical Sciences, Guangzhou Medical University, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China, 510095.
| | - Wei-Yi Fang
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, People's Republic of China, 510310. .,Cancer Institute, School of Basic Medical Science, Southern Medical University, Guangzhou, Guangdong, People's Republic of China, 510515.
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26
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Ko R, Park H, Lee N, Seo J, Jeong W, Lee SY. Glycogen Synthase Kinase 3β Regulates Antiviral Responses of TLR3 via TRAF2-Src Axis. THE JOURNAL OF IMMUNOLOGY 2019; 203:2990-2999. [PMID: 31619538 DOI: 10.4049/jimmunol.1900685] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 09/23/2019] [Indexed: 11/19/2022]
Abstract
The protein tyrosine kinase Src regulates the synthesis of TLR3-mediated IFN-β via the TBK1-IFN regulatory factor 3 axis. However, the molecular mechanisms regulating Src activity in TLR3 signaling remain unclear. In this study, we report that GSK3β regulates Src phosphorylation via TNFR-associated factor 2 (TRAF2)-mediated Src ubiquitination. GSK3β deficiency in mouse embryonic fibroblasts significantly reduces polyinosinic:polycytidylic acid-induced IFN-β and IFN-stimulated gene expression, which is caused by diminished phosphorylation of Src at tyrosine 416. Src undergoes polyinosinic:polycytidylic acid-dependent lysine 63 chain ubiquitination, and TRAF2 is a direct E3 ligase for Src. Our study reveals novel mechanisms underlying TLR3-mediated antiviral responses mediated via the GSK3β-TRAF2-Src axis.
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Affiliation(s)
- Ryeojin Ko
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; and.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Korea
| | - Hana Park
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; and
| | - Nawon Lee
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; and
| | - Jeongin Seo
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; and
| | - Woojin Jeong
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; and.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Korea
| | - Soo Young Lee
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; and.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Korea
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27
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Li Y, Liu X, Lin X, Zhao M, Xiao Y, Liu C, Liang Z, Lin Z, Yi R, Tang Z, Liu J, Li X, Jiang Q, Li L, Xie Y, Liu Z, Fang W. Chemical compound cinobufotalin potently induces FOXO1-stimulated cisplatin sensitivity by antagonizing its binding partner MYH9. Signal Transduct Target Ther 2019; 4:48. [PMID: 31754475 PMCID: PMC6861228 DOI: 10.1038/s41392-019-0084-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 09/22/2019] [Accepted: 09/24/2019] [Indexed: 12/31/2022] Open
Abstract
In this study, we present novel molecular mechanisms by which FOXO1 functions as a tumor suppressor to prevent the pathogenesis of nasopharyngeal carcinoma (NPC). First, we observed that FOXO1 not only controlled tumor stemness and metastasis, but also sensitized NPC cells to cisplatin (DDP) in vitro and in vivo. Mechanistic studies demonstrated that FOXO1-induced miR-200b expression through the GSK3β/β-catenin/TCF4 network-mediated stimulation of ZEB1, which reduced tumor stemness and the epithelial-mesenchymal transition (EMT) signal. Furthermore, we observed FOXO1 interaction with MYH9 and suppression of MYH9 expression by modulating the PI3K/AKT/c-Myc/P53/miR-133a-3p pathway. Decreased MYH9 expression not only reduced its interactions with GSK3β, but also attenuated TRAF6 expression, which then decreased the ubiquitin-mediated degradation of GSK3β protein. Increased GSK3β expression stimulated the β-catenin/TCF4/ZEB1/miR-200b network, which increased the downstream tumor stemness and EMT signals. Subsequently, we observed that chemically synthesized cinobufotalin (CB) strongly increased FOXO1-induced DDP chemosensitivity by reducing MYH9 expression, and the reduction in MYH9 modulated GSK3β/β-catenin and its downstream tumor stemness and EMT signal in NPC. In clinical samples, the combination of low FOXO1 expression and high MYH9 expression indicated the worst overall survival rates. Our studies demonstrated that CB potently induced FOXO1-mediated DDP sensitivity by antagonizing its binding partner MYH9 to modulate tumor stemness in NPC.
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Affiliation(s)
- YongHao Li
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
| | - Xiong Liu
- Department of Otolaryngology-Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xian Lin
- Cancer Institute, Southern Medical University, 510515 Guangzhou, China
| | - Menyang Zhao
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
| | - Yanyi Xiao
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
| | - Chen Liu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
| | - Zixi Liang
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
| | - Zelong Lin
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
| | - Renhui Yi
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
| | - Zibo Tang
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
| | - Jiahao Liu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
| | - Xin Li
- Cancer Institute, Southern Medical University, 510515 Guangzhou, China
| | - Qingping Jiang
- Department of Pathology, Third Affiliated Hospital, Guangzhou Medical University, 510150 Guangzhou, China
| | - Libo Li
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
| | - Yinyin Xie
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
| | - Zhen Liu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
- Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, 511436 Guangzhou, China
| | - Weiyi Fang
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, 510315 Guangzhou, China
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Song Y, Li P, Qin L, Xu Z, Jiang B, Ma C, Shao C, Gong Y. CUL4B negatively regulates Toll-like receptor-triggered proinflammatory responses by repressing Pten transcription. Cell Mol Immunol 2019; 18:339-349. [PMID: 31729464 DOI: 10.1038/s41423-019-0323-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 10/17/2019] [Indexed: 02/06/2023] Open
Abstract
Toll-like receptors (TLRs) play critical roles in innate immunity and inflammation. The molecular mechanisms by which TLR signaling is fine-tuned remain to be completely elucidated. Cullin 4B (CUL4B), which assembles the CUL4B-RING E3 ligase complex (CRL4B), has been shown to regulate diverse developmental and physiological processes by catalyzing monoubiquitination for histone modification or polyubiquitination for proteasomal degradation. Here, we identified the role of CUL4B as an intrinsic negative regulator of the TLR-triggered inflammatory response. Deletion of CUL4B in macrophages increased the production of proinflammatory cytokines and decreased anti-inflammatory cytokine IL-10 production in response to pathogens that activate TLR3, TLR4, or TLR2. Myeloid cell-specific Cul4b knockout mice were more susceptible to septic shock when challenged with lipopolysaccharide, polyinosinic-polycytidylic acid or Salmonella typhimurium infection. We further demonstrated that enhanced TLR-induced inflammatory responses in the absence of CUL4B were mediated by increased GSK3β activity. Suppression of GSK3β activity efficiently blocked the TLR-triggered increase in proinflammatory cytokine production and attenuated TLR-triggered death in Cul4b mutant mice. Mechanistically, CUL4B was found to negatively regulate TLR-triggered signaling by epigenetically repressing the transcription of Pten, thus maintaining the anti-inflammatory PI3K-AKT-GSK3β pathway. The upregulation of PTEN caused by CUL4B deletion led to uncontrolled GSK3β activity and excessive inflammatory immune responses. Thus, our findings indicate that CUL4B functions to restrict TLR-triggered inflammatory responses through regulating the AKT-GSK3β pathway.
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Affiliation(s)
- Yu Song
- Key Laboratory of Experimental Teratology, Ministry of Education, Institute of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Peishan Li
- Key Laboratory of Experimental Teratology, Ministry of Education, Institute of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Liping Qin
- Key Laboratory of Experimental Teratology, Ministry of Education, Institute of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Zhiliang Xu
- Key Laboratory of Experimental Teratology, Ministry of Education, Institute of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Baichun Jiang
- Key Laboratory of Experimental Teratology, Ministry of Education, Institute of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Chunhong Ma
- Key Laboratory of Experimental Teratology, Ministry of Education, Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, Shandong, China
| | - Changshun Shao
- State Key Laboratory of Radiation Medicine and Protection, Institutes for Translational Medicine, Soochow University, Suzhou, Jiangsu, China
| | - Yaoqin Gong
- Key Laboratory of Experimental Teratology, Ministry of Education, Institute of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China.
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29
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Liu Y, Jiang Q, Liu X, Lin X, Tang Z, Liu C, Zhou J, Zhao M, Li X, Cheng Z, Li L, Xie Y, Liu Z, Fang W. Cinobufotalin powerfully reversed EBV-miR-BART22-induced cisplatin resistance via stimulating MAP2K4 to antagonize non-muscle myosin heavy chain IIA/glycogen synthase 3β/β-catenin signaling pathway. EBioMedicine 2019; 48:386-404. [PMID: 31594754 PMCID: PMC6838365 DOI: 10.1016/j.ebiom.2019.08.040] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 08/16/2019] [Accepted: 08/19/2019] [Indexed: 01/17/2023] Open
Abstract
Background Nasopharyngeal carcinoma (NPC) is an Epstein-Barr virus (EBV)-related tumor. The role of EBV-encoding miR-BART22 is still unclear in NPC. This study aimed to identify the detailed mechanisms by which EBV-miR-BART22 functions as a tumor-promoting factor and evaluate the action of cinobufotalin in treating EBV-miR-BART22-overexpressing NPC cells. Methods Using real-time PCR, western blotting, immunohistochemistry, and In situ hybridization, we detected the expression of miR-BART22 and MAP2K4 in tissues and cells, as well as evaluated their clinical relevance in NPC patients. The effects of miR-BART22 on cell metastasis, stemness and DDP chemoresistance were examined by sphere formation assay, side population analysis, transwell, boyden, in vivo xenograft tumor mouse model et al. Western blotting, immunofluorescence staining, luciferase reporter assay, ChIP, EMSA and Co-IP assay et al. were performed to explore the detailed molecular mechanism of EBV-miR-BART22 in NPC. Finally, we estimated the effects and molecular basis of Cinobufotalin on EBV-miR-BART22-overexpressing NPC cells in vitro and in vivo assays. Findings We observed that EBV-miR-BART22 not only promoted tumor stemness and metastasis, but also enhanced the resistance to Cisplatin (DDP) in vitro and in vivo. Mechanistic analysis indicated that EBV-miR-BART22 directly targeted the MAP2K4 and upregulated non-muscle myosin heavy chain IIA (MYH9) expression by PI3K/AKT/c-Jun-induced transcription. Further, MYH9 interacted with glycogen synthase 3β(GSK3β) protein and induced its ubiquitin degradation by activating PI3K/AKT/c-Jun-induced ubiquitin transcription and the latter combined with increased TRAF6 E3 ligase, which further bound to GSK3β protein. Reductions in the GSK3β protein thus promoted β-catenin expression and nuclear translocation, which induced tumor stemness and the epithelial-to-mesenchymal transition (EMT) signals. Furthermore, we observed that cinobufotalin, a new chemically synthesized compound, significantly suppressed EBV-miR-BART22-induced DDP chemoresistance by upregulating MAP2K4 to suppress MYH9/GSK3β/β-catenin and its downstream tumor stemness and EMT signals in NPC. Finally, clinical data revealed that increased miR-BART22 and reduced MAP2K4 expression caused the poor prognoses of NPC patients. Interpretation Our study provides a novel mechanism that cinobufotalin reversed the DDP chemoresistance and EMT induced by EBV-miR-BART22 in NPC.
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Affiliation(s)
- Yiyi Liu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Qingping Jiang
- Cancer Institute, School of Basic Medical Science, Southern Medical University, Guangzhou, China; Department of Pathology, Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Xiong Liu
- Cancer Institute, School of Basic Medical Science, Southern Medical University, Guangzhou, China; Department of Otolaryngology, Head and Neck Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Xian Lin
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - ZiBo Tang
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Chen Liu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Jin Zhou
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Mengyang Zhao
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Xin Li
- Shenzhen Key Laboratory of Viral Oncology, the Clinical Innovation & Research Center (CIRC), Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Zhao Cheng
- Shenzhen Key Laboratory of Viral Oncology, the Clinical Innovation & Research Center (CIRC), Shenzhen Hospital, Southern Medical University, Shenzhen, China; Department of Pediatric Otorhinolaryngology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Libo Li
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yingying Xie
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Zhen Liu
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China; Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China.
| | - Weiyi Fang
- Cancer Center, Integrated Hospital of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.
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30
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Peng SJ, Yao RR, Yu SS, Chen HY, Pang X, Zhang Y, Zhang J. UBL4A Augments Innate Immunity by Promoting the K63-Linked Ubiquitination of TRAF6. THE JOURNAL OF IMMUNOLOGY 2019; 203:1943-1951. [PMID: 31451677 DOI: 10.4049/jimmunol.1800750] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 07/24/2019] [Indexed: 12/25/2022]
Abstract
Human UBL4A/GdX, encoding an ubiquitin-like protein, was shown in this study to be upregulated by viral infection and IFN stimulation. Then the functions of UBL4A in antiviral immune response were characterized. Overexpression of UBL4A promoted RNA virus-induced ISRE or IFN-β or NF-κB activation, leading to enhanced type I IFN transcription and reduced virus replication. Consistently, knockdown of UBL4A resulted in reduced type I IFN transcription and enhanced virus replication. Additionally, overexpression of UBL4A promoted virus-induced phosphorylation of TBK1, IRF3, and IKKα/β. Knockdown of UBL4A inhibited virus-induced phosphorylation of TBK1, IRF3, and IKKα/β. Coimmunoprecipitation showed that UBL4A interacted with TRAF6, and this interaction was enhanced upon viral infection. Ubiquitination assays showed that UBL4A promoted the K63-linked ubiquitination of TRAF6. Therefore, we reveal a novel positive feedback regulation of UBL4A in innate immune response combating virus invasion by enhancing the K63-linked ubiquitination of TRAF6.
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Affiliation(s)
- Shu-Jie Peng
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing 100191, China
| | - Ran-Ran Yao
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing 100191, China
| | - Shuang-Shuang Yu
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing 100191, China
| | - Hong-Yan Chen
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing 100191, China
| | - Xuewen Pang
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing 100191, China
| | - Yu Zhang
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing 100191, China
| | - Jun Zhang
- Department of Immunology, School of Basic Medical Sciences, NHC Key Laboratory of Medical Immunology, Ministry of Health (Peking University), Peking University Health Science Center, Beijing 100191, China
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Park JH, Jeong E, Lin J, Ko R, Kim JH, Yi S, Choi Y, Kang IC, Lee D, Lee SY. RACK1 interaction with c-Src is essential for osteoclast function. Exp Mol Med 2019; 51:1-9. [PMID: 31358728 PMCID: PMC6802652 DOI: 10.1038/s12276-019-0285-4] [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: 03/19/2019] [Revised: 04/28/2019] [Accepted: 04/29/2019] [Indexed: 12/30/2022] Open
Abstract
The scaffolding protein receptor for activated C-kinase 1 (RACK1) mediates receptor activator of nuclear factor κΒ ligand (RANKL)-dependent activation of p38 MAPK in osteoclast precursors; however, the role of RACK1 in mature osteoclasts is unclear. The aim of our study was to identify the interaction between RACK1 and c-Src that is critical for osteoclast function. A RACK1 mutant protein (mutations of tyrosine 228 and 246 residues to phenylalanine; RACK1 Y228F/Y246F) did not interact with c-Src. The mutant retained its ability to differentiate into osteoclasts; however, the integrity of the RANKL-mediated cytoskeleton, bone resorption activity, and phosphorylation of c-Src was significantly decreased. Importantly, lysine 152 (K152) within the Src homology 2 (SH2) domain of c-Src is involved in RACK1 binding. The c-Src K152R mutant (mutation of lysine 152 into arginine) impaired the resorption of bone by osteoclasts. These findings not only clarify the role of the RACK1-c-Src axis as a key regulator of osteoclast function but will also help to develop new antiresorption therapies to prevent bone loss-related diseases.
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Affiliation(s)
- Jin Hee Park
- Department of Life Science, Ewha Womans University, Seoul, 03760, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, Korea
| | - Eutteum Jeong
- Department of Life Science, Ewha Womans University, Seoul, 03760, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, Korea
| | - Jingjing Lin
- Department of Life Science, Ewha Womans University, Seoul, 03760, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, Korea
| | - Ryeojin Ko
- Department of Life Science, Ewha Womans University, Seoul, 03760, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, Korea
| | - Ji Hee Kim
- Department of Life Science, Ewha Womans University, Seoul, 03760, Korea
| | - Sol Yi
- Department of Life Science, Ewha Womans University, Seoul, 03760, Korea
| | - Youngjin Choi
- Department of Food Science & Technology, Hoseo University, Asan, 31499, Korea
| | - In-Cheol Kang
- Department of Biological Science, College of Natural Science, BioChip Research Center, and Hoseo University, Asan, 31499, Korea
| | - Daekee Lee
- Department of Life Science, Ewha Womans University, Seoul, 03760, Korea
| | - Soo Young Lee
- Department of Life Science, Ewha Womans University, Seoul, 03760, Korea. .,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul, 03760, Korea.
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Song X, Liu S, Wang W, Ma Z, Cao X, Jiang M. E3 ubiquitin ligase RNF170 inhibits innate immune responses by targeting and degrading TLR3 in murine cells. Cell Mol Immunol 2019; 17:865-874. [PMID: 31076723 DOI: 10.1038/s41423-019-0236-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 04/14/2019] [Indexed: 12/31/2022] Open
Abstract
Upon recognition of dsRNA, toll-like receptor 3 (TLR3) recruits the adaptor protein TRIF to activate IRF3 and NF-κB signaling, initiating innate immune responses. The ubiquitination of TLR3 downstream signaling molecules and their roles in the innate response have been discovered; however, whether TLR3 itself is ubiquitinated and then functionally involved remains to be elucidated. By immunoprecipitating TLR3-binding proteins in macrophages, we identified ring finger protein 170 (RNF170) as a TLR3-binding E3 ligase. RNF170 mediated the K48-linked polyubiquitination of K766 in the TIR domain of TLR3 and promoted the degradation of TLR3 through the proteasome pathway. The genetic ablation of RNF170 selectively augmented TLR3-triggered innate immune responses both in vitro and in vivo. Our results reveal a novel role for RNF170 in selectively inhibiting TLR3-triggered innate immune responses by promoting TLR3 degradation.
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Affiliation(s)
- Xiaoqi Song
- National Key Laboratory of Medical Molecular Biology, Department of Immunology & Center for Immunotherapy, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, 100005, Beijing, China
| | - Shuo Liu
- National Key Laboratory of Medical Molecular Biology, Department of Immunology & Center for Immunotherapy, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, 100005, Beijing, China
| | - Wendie Wang
- National Key Laboratory of Medical Molecular Biology, Department of Immunology & Center for Immunotherapy, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, 100005, Beijing, China
| | - Zhongfei Ma
- National Key Laboratory of Medical Molecular Biology, Department of Immunology & Center for Immunotherapy, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, 100005, Beijing, China
| | - Xuetao Cao
- National Key Laboratory of Medical Molecular Biology, Department of Immunology & Center for Immunotherapy, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, 100005, Beijing, China.,National Key Laboratory of Medical Immunology & Institute of Immunology, Second Military Medical University, 200433, Shanghai, China.,School of Medicine, Nankai University, 300071, Tianjin, China
| | - Minghong Jiang
- National Key Laboratory of Medical Molecular Biology, Department of Immunology & Center for Immunotherapy, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, 100005, Beijing, China.
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Li H, Li CW, Li X, Ding Q, Guo L, Liu S, Liu C, Lai CC, Hsu JM, Dong Q, Xia W, Hsu JL, Yamaguchi H, Du Y, Lai YJ, Sun X, Koller PB, Ye Q, Hung MC. MET Inhibitors Promote Liver Tumor Evasion of the Immune Response by Stabilizing PDL1. Gastroenterology 2019; 156:1849-1861.e13. [PMID: 30711629 PMCID: PMC6904924 DOI: 10.1053/j.gastro.2019.01.252] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 01/09/2019] [Accepted: 01/17/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND & AIMS Inhibitors of MET have not produced satisfactory outcomes in trials of patients with liver cancer. We investigated the mechanisms of liver tumor resistance to MET inhibitors in mice. METHODS We tested the effects of MET inhibitors tivantinib and capmatinib in the mouse hepatocellular carcinoma (HCC) cell line HCA-1 and in immune-competent and immunodeficient mice with subcutaneous tumors grown from this cell line. Tumors were collected from mice and tumor cells were analyzed by time-of-flight mass cytometry. We used short hairpin RNAs to weaken expression of MET in Hep3B, SK-HEP-1, HA59T, and HA22T liver cancer cell lines and analyzed cells by immunoblot, immunofluorescence, and immunoprecipitation assays. Mass spectrometry was used to assess interactions between MET and glycogen synthase kinase 3β (GSK3B), and GSK3B phosphorylation, in liver cancer cell lines. C57/BL6 mice with orthotopic tumors grown from Hep1-6 cells were given combinations of capmatinib or tivantinib and antibodies against programmed cell death 1 (PDCD1; also called PD1); tumors were collected and analyzed by immunofluorescence. We analyzed 268 HCCsamples in a tissue microarray by immunohistochemistry. RESULTS Exposure of liver cancer cell lines to MET inhibitors increased their expression of PD ligand 1 (PDL1) and inactivated cocultured T cells. MET phosphorylated and activated GSK3B at tyrosine 56, which decreased the expression of PDL1 by liver cancer cells. In orthotopic tumors grown in immune-competent mice, MET inhibitors decreased the antitumor activity of T cells. However, addition of anti-PD1 decreased orthotopic tumor growth and prolonged survival of mice compared with anti-PD1 or MET inhibitors alone. Tissue microarray analysis of HCC samples showed an inverse correlation between levels of MET and PDL1 and a positive correlation between levels of MET and phosphorylated GSK3B. CONCLUSIONS In studies of liver cancer cell lines and mice with orthotopic tumors, MET mediated phosphorylation and activated GSK3B, leading to decreased expression of PDL1. Combined with a MET inhibitor, anti-PD1 and anti-PDL1 produced additive effect to slow growth of HCCs in mice.
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Affiliation(s)
- Hui Li
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas,Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University and Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Shanghai, People’s Republic of China
| | - Chia-Wei Li
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Xiaoqiang Li
- Department of Thoracic Surgery, Peking University Shenzhen Hospital, Shenzhen, People’s Republic of China
| | - Qingqing Ding
- Department of Pathology, University of Kansas Medical Center, Kansas City, Kansas
| | - Lei Guo
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University and Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Shanghai, People’s Republic of China
| | - Shuang Liu
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University and Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Shanghai, People’s Republic of China
| | - Chunxiao Liu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Chien-Chen Lai
- Graduate Institute of Biomedical Sciences and Center for Molecular Medicine, China Medical University, Taichung, Taiwan,Institute of Molecular Biology, National Chung Hsing University, Taichung, Taiwan
| | - Jung-Mao Hsu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Qiongzhu Dong
- Institutes of Biomedical Sciences, Fudan University, Shanghai, People’s Republic of China
| | - Weiya Xia
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jennifer L. Hsu
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas,Graduate Institute of Biomedical Sciences and Center for Molecular Medicine, China Medical University, Taichung, Taiwan
| | - Hirohito Yamaguchi
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yi Du
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yun-Ju Lai
- Department of Neurology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas
| | - Xian Sun
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Paul B. Koller
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Qinghai Ye
- Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University and Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Shanghai, People’s Republic of China
| | - Mien-Chie Hung
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas; Graduate Institute of Biomedical Sciences and Center for Molecular Medicine, China Medical University, Taichung, Taiwan.
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Yang XB, Jiang H, Shi Y. WITHDRAWN: SIKE1 deficiency accelerates hepatic ischemia/reperfusion (IR) injury through enhancing Toll-like receptor-3-regulated inflammation. Biochem Biophys Res Commun 2018:S0006-291X(18)30140-2. [PMID: 29366783 DOI: 10.1016/j.bbrc.2018.01.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 01/19/2018] [Indexed: 06/07/2023]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
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Affiliation(s)
- Xiao-Bo Yang
- Department of Neonatology, The Central Hospital of Wuhan, Wuhan 430014, China
| | - Hong Jiang
- Department of Neonatology, The Central Hospital of Wuhan, Wuhan 430014, China
| | - Yao Shi
- Department of Neonatology, The Central Hospital of Wuhan, Wuhan 430014, China
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35
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STAC2 negatively regulates osteoclast formation by targeting the RANK signaling complex. Cell Death Differ 2018; 25:1364-1374. [PMID: 29348675 DOI: 10.1038/s41418-017-0048-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 11/21/2017] [Accepted: 11/27/2017] [Indexed: 11/08/2022] Open
Abstract
The receptor activator of nuclear factor-κB (RANK) protein activates various protein kinase signaling cascades, including those involving NF-κB, mitogen-activated protein kinase (MAPK), and Bruton tyrosine kinase (Btk)/tyrosine-protein kinase Tec. However, the mechanism underlying the negative regulation of RANK by downstream signaling molecules remains unclear. Here, we report that Src homology 3 domain and cysteine-rich domain-containing protein 2 (STAC2) is a novel RANK ligand-inducible protein that negatively regulates RANK-mediated osteoclast formation. STAC2 physically interacts with RANK and inhibits the formation of the RANK signaling complex, which contains Grb-2-associated binder 2 (Gab2) and phospholipase Cγ2 (PLCγ2), thus leading to the suppression of RANK-mediated NF-κB and MAPK activation. Furthermore, STAC2 overexpression limits Btk/Tec-mediated PLCγ2 phosphorylation via the interaction between STAC2 and Btk/Tec. Taken together, our results reveal a novel mechanism whereby RANK signaling is restricted by its physical interaction with STAC2.
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Syncytin-1, an endogenous retroviral protein, triggers the activation of CRP via TLR3 signal cascade in glial cells. Brain Behav Immun 2018; 67:324-334. [PMID: 28928004 DOI: 10.1016/j.bbi.2017.09.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 09/08/2017] [Accepted: 09/15/2017] [Indexed: 12/17/2022] Open
Abstract
Schizophrenia is a devastating psychiatric disorder that impacts on social functioning and quality of life, and there is accumulating evidence that inflammation is a potential pathogenic mechanism of schizophrenia. However, the mechanism of inflammation possibly occurred in schizophrenia has not been well understood. The endogenous retroviral protein syncytin-1 and inflammatory marker CRP are both abnormally expressed in schizophrenia patients. CRP is one of the markers of bacterial infection generally. Less clear is whether virus or viral protein can trigger the activation of CRP. Here, we detected a robust increase of the levels of syncytin-1 and CRP in schizophrenia patients, and displayed a positive correlation and marked consistency between expressions of syncytin-1 and CRP in schizophrenia patients. Furthermore, overexpression of syncytin-1 significantly elevated the levels of CRP, TLR3, and IL-6 in both human microglia and astrocytes. TLR3 deficiency impaired the expressions of CRP and IL-6 induced by syncytin-1. Importantly, we observed a cellular co-localization and a direct interaction between syncytin-1 and TLR3. Additionally, knockdown of IL-6 inhibited the syncytin-1-induced CRP expression. Thus, the totality of these results showed that viral protein syncytin-1 could trigger the activation of CRP, which might explain the elevated CRP in sterile inflammation and exhibit a novel mechanism for regulation of inflammation by syncytin-1 in schizophrenia.
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Kim BH, Oh JH, Lee NK. The Inactivation of ERK1/2, p38 and NF-kB Is Involved in the Down-Regulation of Osteoclastogenesis and Function by A2B Adenosine Receptor Stimulation. Mol Cells 2017; 40:752-760. [PMID: 29047264 PMCID: PMC5682252 DOI: 10.14348/molcells.2017.0098] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/11/2017] [Accepted: 09/21/2017] [Indexed: 12/04/2022] Open
Abstract
A2B adenosine receptor (A2BAR) is known to be the regulator of bone homeostasis, but its regulatory mechanisms in osteoclast formation are less well-defined. Here, we demonstrate the effect of A2BAR stimulation on osteoclast differentiation and activity by RANKL. A2BAR was expressed in bone marrow-derived monocyte/macrophage (BMM) and RANKL increased A2BAR expression during osteoclastogenesis. A2BAR stimulation with its specific agonist BAY 60-6583 was sufficient to inhibit the activation of ERK1/2, p38 MAP kinases and NF-κB by RANKL as well as it abrogated cell-cell fusion in the late stage of osteoclast differentiation. Stimulation of A2BAR suppressed the expression of osteoclast marker genes, such as c-Fos, TRAP, Cathepsin-K and NFATc1, induced by RANKL, and transcriptional activity of NFATc1 was also inhibited by stimulation of A2BAR. A2BAR stimulation caused a notable reduction in the expression of Atp6v0d2 and DC-STAMP related to cell-cell fusion of osteoclasts. Especially, a decrease in bone resorption activity through suppression of actin ring formation by A2BAR stimulation was observed. Taken together, these results suggest that A2BAR stimulation inhibits the activation of ERK1/2, p38 and NF-κB by RANKL, which suppresses the induction of osteoclast marker genes, thus contributing to the decrease in osteoclast cell-cell fusion and bone resorption activity.
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Affiliation(s)
- Bo Hyun Kim
- Department of Medical Science, College of Medical Sciences, Soonchunhyang University, Asan 336-745,
Korea
| | - Ju Hee Oh
- Department of Medical Science, College of Medical Sciences, Soonchunhyang University, Asan 336-745,
Korea
| | - Na Kyung Lee
- Department of Medical Science, College of Medical Sciences, Soonchunhyang University, Asan 336-745,
Korea
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38
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Zhu JY, Li Y, Cao DM, Yang H, Oh E, Bi Y, Zhu S, Wang ZY. The F-box Protein KIB1 Mediates Brassinosteroid-Induced Inactivation and Degradation of GSK3-like Kinases in Arabidopsis. Mol Cell 2017; 66:648-657.e4. [PMID: 28575660 DOI: 10.1016/j.molcel.2017.05.012] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 04/05/2017] [Accepted: 05/10/2017] [Indexed: 11/18/2022]
Abstract
The glycogen synthase kinase-3 (GSK3) family kinases are central cellular regulators highly conserved in all eukaryotes. In Arabidopsis, the GSK3-like kinase BIN2 phosphorylates a range of proteins to control broad developmental processes, and BIN2 is degraded through unknown mechanism upon receptor kinase-mediated brassinosteroid (BR) signaling. Here we identify KIB1 as an F-box E3 ubiquitin ligase that promotes the degradation of BIN2 while blocking its substrate access. Loss-of-function mutations of KIB1 and its homologs abolished BR-induced BIN2 degradation and caused severe BR-insensitive phenotypes. KIB1 directly interacted with BIN2 in a BR-dependent manner and promoted BIN2 ubiquitination in vitro. Expression of an F-box-truncated KIB1 caused BIN2 accumulation but dephosphorylation of its substrate BZR1 and activation of BR responses because KIB1 blocked BIN2 binding to BZR1. Our study demonstrates that KIB1 plays an essential role in BR signaling by inhibiting BIN2 through dual mechanisms of blocking substrate access and promoting degradation.
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Affiliation(s)
- Jia-Ying Zhu
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA 94305, USA
| | - Yuyao Li
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA 94305, USA
| | - Dong-Mei Cao
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; Institute of Horticulture, Shanxi Academy of Agriculture Sciences, Taiyuan 030031, China
| | - Hongjuan Yang
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA 94305, USA; Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Eunkyoo Oh
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA 94305, USA; Department of Bioenergy Science and Technology, Chonnam National University, Gwangju 61186, South Korea
| | - Yang Bi
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA 94305, USA; Department of Biology, Stanford University, Stanford, CA 94305, USA
| | - Shengwei Zhu
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA 94305, USA; Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Zhi-Yong Wang
- Department of Plant Biology, Carnegie Institution for Science, Stanford, CA 94305, USA.
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39
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Ursu ON, Beyer T, Sauter M, Fragasso A, Bundschuh S, Klingel K, Munz B. TRAF6: A player in CVB3-induced myocarditis? Cytokine 2017; 122:154143. [PMID: 28886971 DOI: 10.1016/j.cyto.2017.08.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 08/11/2017] [Accepted: 08/28/2017] [Indexed: 11/26/2022]
Abstract
Coxsackievirus B3 (CVB3) is an important inducer of myocarditis, which, in susceptible individuals, can chronify and eventually lead to the development of dilated cardiomyopathy and heart failure. The respective mechanisms are not completely understood. Here, we analyzed expression of the TRAF6 gene, encoding TNF receptor-associated factor 6 (TRAF6), a signal transduction scaffold protein that acts downstream of cytokine receptors, in heart tissue of susceptible and non-susceptible mouse strains. We found that after infection, TRAF6 expression was upregulated in both non-susceptible C57BL/6 wildtype and susceptible A.BY/SnJ and C57BL/6-TLR3 (-/-) mice, however, to different degrees. In infected HeLa cells, we also found moderately elevated TRAF6 levels after infection, in addition, activity of the transcription factor nuclear factor kappa B (NFκB), which can be activated downstream of TRAF6, was strongly enhanced in infected cells. To functionally analyze the role of TRAF6 with regard to infection progression, TRAF6 expression was knocked down in cultured HeLa cells using specific siRNAs. We found that reduction of TRAF6 expression had no effect on NFκB activation in response to infection. Taken together, our data suggest that CVB3 infection enhances TRAF6 levels, however, this induction might not be necessary for infection-induced NFκB activation.
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Affiliation(s)
- Oana N Ursu
- University Hospital Tübingen Medical Clinic, Department of Sports Medicine, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany; University Hospital Tübingen, Department of Molecular Pathology, Institute for Pathology and Neuropathology, Liebermeisterstr. 8, D-72076 Tübingen, Germany
| | - Tina Beyer
- University Hospital Tübingen Medical Clinic, Department of Sports Medicine, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany; University Hospital Tübingen, Department of Molecular Pathology, Institute for Pathology and Neuropathology, Liebermeisterstr. 8, D-72076 Tübingen, Germany
| | - Martina Sauter
- University Hospital Tübingen, Department of Molecular Pathology, Institute for Pathology and Neuropathology, Liebermeisterstr. 8, D-72076 Tübingen, Germany
| | - Annunziata Fragasso
- University Hospital Tübingen Medical Clinic, Department of Sports Medicine, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany
| | - Sandra Bundschuh
- University Hospital Tübingen, Department of Molecular Pathology, Institute for Pathology and Neuropathology, Liebermeisterstr. 8, D-72076 Tübingen, Germany
| | - Karin Klingel
- University Hospital Tübingen, Department of Molecular Pathology, Institute for Pathology and Neuropathology, Liebermeisterstr. 8, D-72076 Tübingen, Germany
| | - Barbara Munz
- University Hospital Tübingen Medical Clinic, Department of Sports Medicine, Hoppe-Seyler-Str. 6, D-72076 Tübingen, Germany.
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40
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Reciprocal regulation of TLR2-mediated IFN-β production by SHP2 and Gsk3β. Sci Rep 2017; 7:6807. [PMID: 28754897 PMCID: PMC5533723 DOI: 10.1038/s41598-017-07316-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 06/26/2017] [Indexed: 11/09/2022] Open
Abstract
Toll-like receptor 2 (TLR2) mediates the innate immune response to bacterial lipopeptides and peptidoglycans by stimulating the production of inflammatory cytokines. However, the mechanisms by which TLR2 signaling regulates type I interferon (IFN)-β production are poorly understood. Here, we identified Src homology 2-containing protein tyrosine phosphatase 2 (SHP2) as a negative regulator of TLR2-induced IFN-β production. Pharmacological inhibition or reduced expression of SHP2 potentiated TLR2 agonist-mediated IFN-β transcription and STAT1 activation, whereas overexpression of SHP2 impaired IFN-β transcription and STAT1 activation. SHP2 physically associated with the glycogen synthase kinase 3β (Gsk3β) in an agonist-dependent manner. Gsk3β positively regulates transcription of IFN-β following TLR2 stimulation by inhibiting the phosphorylation of SHP2. SHP2 inhibited the transcriptional activity of IRF-1 and IRF-8 at the IFN-β promoter. Remarkably, IRF-1 and IRF-8 are recruited to the IFN-β promoter in a SHP2 phosphatase activity-dependent manner. These findings provide insight into the mechanisms by which SHP2 and Gsk3β work together to modulate TLR2-mediated IFN-β production in macrophages.
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41
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Tumor Necrosis Factor Receptor-Associated Factor 6 (TRAF6) Mediates Ubiquitination-Dependent STAT3 Activation upon Salmonella enterica Serovar Typhimurium Infection. Infect Immun 2017; 85:IAI.00081-17. [PMID: 28507064 DOI: 10.1128/iai.00081-17] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 05/05/2017] [Indexed: 01/15/2023] Open
Abstract
Salmonella enterica serovar Typhimurium can inject effector proteins into host cells via type III secretion systems (T3SSs). These effector proteins modulate a variety of host transcriptional responses to facilitate bacterial growth and survival. Here we show that infection of host cells with S Typhimurium specifically induces the ubiquitination of tumor necrosis factor receptor-associated factor 6 (TRAF6). This TRAF6 ubiquitination is triggered by the Salmonella pathogenicity island 1 (SPI-1) T3SS effectors SopB and SopE2. We also demonstrate that TRAF6 is involved in the SopB/SopE2-induced phosphorylation of signal transducer and activator of transcription 3 (STAT3), a signaling event conducive to the intracellular growth of S Typhimurium. Specifically, TRAF6 mediates lysine-63 ubiquitination within the Src homology 2 (SH2) domain of STAT3, which is an essential step for STAT3 membrane recruitment and subsequent phosphorylation in response to S Typhimurium infection. TRAF6 ubiquitination participates in STAT3 phosphorylation rather than serving as only a hallmark of E3 ubiquitin ligase activation. Our results reveal a novel strategy in which S Typhimurium T3SS effectors broaden their functions through the activation of host proteins in a ubiquitination-dependent manner to manipulate host cells into becoming a Salmonella-friendly zone.
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42
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C 21 -steroidal pregnane sapogenins and their derivatives as anti-inflammatory agents. Bioorg Med Chem 2017; 25:3512-3524. [DOI: 10.1016/j.bmc.2017.04.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 04/29/2017] [Indexed: 01/04/2023]
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43
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Huh HD, Lee E, Shin J, Park B, Lee S. STRAP positively regulates TLR3-triggered signaling pathway. Cell Immunol 2017; 318:55-60. [PMID: 28651742 DOI: 10.1016/j.cellimm.2017.06.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 06/13/2017] [Accepted: 06/19/2017] [Indexed: 10/19/2022]
Abstract
Toll-like receptor (TLR) signaling drives the innate immune response by activating nuclear factor-κB (NF-κB) and interferon regulatory factor (IRF). We have previously shown that STRAP interacts with TAK1 and IKKα along with NF-κB subunit p65, leading to the activation of pro-inflammatory cytokines. However, the roles of STRAP in TRIF/TBK1-mediated TLR3 activation and the subsequent type I interferon (IFN) production are not fully elucidated. Here, we demonstrate that STRAP acts as a scaffold protein in TLR3-triggered signaling. STRAP strongly interacts with TBK1 and IRF3, which enhances IFN-β production. As a consequence, STRAP knockdown reduces the level of both pro-inflammatory cytokine and IFN in TLR3 agonist-stimulated macrophages, whereas its overexpression significantly enhances production of these cytokines. Furthermore, the C-terminus of STRAP is essential for its functional activity in TLR3-mediated IL-6 and IFN-β production. These data suggest that STRAP is a positive regulator of the TLR3-meditated NF-κB and IRF signaling pathway.
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Affiliation(s)
- Hyunbin D Huh
- Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, South Korea
| | - Eunhye Lee
- Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, South Korea
| | - Jinwook Shin
- Department of Microbiology, Inha University College of Medicine, Incheon 22212, South Korea
| | - Boyoun Park
- Department of Systems Biology, College of Life Science and Biotechnology, Yonsei University, Seoul 03722, South Korea.
| | - Sungwook Lee
- Cancer Immunology Branch, Research Institute, National Cancer Center, Goyang 10408, South Korea.
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44
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Kim E, Beon J, Lee S, Park SJ, Ahn H, Kim MG, Park JE, Kim W, Yuk JM, Kang SJ, Lee SH, Jo EK, Seong RH, Kim S. Inositol polyphosphate multikinase promotes Toll-like receptor-induced inflammation by stabilizing TRAF6. SCIENCE ADVANCES 2017; 3:e1602296. [PMID: 28439546 PMCID: PMC5400429 DOI: 10.1126/sciadv.1602296] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 02/24/2017] [Indexed: 05/08/2023]
Abstract
Toll-like receptor (TLR) signaling is tightly controlled to protect hosts from microorganisms while simultaneously preventing uncontrolled immune responses. Tumor necrosis factor receptor-associated factor 6 (TRAF6) is a critical mediator of TLR signaling, but the precise mechanism of how TRAF6 protein stability is strictly controlled still remains obscure. We show that myeloid-specific deletion of inositol polyphosphate multikinase (IPMK), which has both inositol polyphosphate kinase activities and noncatalytic signaling functions, protects mice against polymicrobial sepsis and lipopolysaccharide-induced systemic inflammation. IPMK depletion in macrophages results in decreased levels of TRAF6 protein, thereby dampening TLR-induced signaling and proinflammatory cytokine production. Mechanistically, the regulatory role of IPMK is independent of its catalytic function, instead reflecting its direct binding to TRAF6. This interaction stabilizes TRAF6 by blocking its K48-linked ubiquitination and subsequent degradation by the proteasome. Thus, these findings identify IPMK as a key determinant of TRAF6 stability and elucidate the physiological function of IPMK in TLR-induced innate immunity.
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Affiliation(s)
- Eunha Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Jiyoon Beon
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Seulgi Lee
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Seung Ju Park
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Hyoungjoon Ahn
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Min Gyu Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Jeong Eun Park
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Wooseob Kim
- School of Biological Sciences and Institute for Molecular Biology and Genetics, Seoul National University, Seoul 08826, Korea
| | - Jae-Min Yuk
- Department of Infection Biology, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Suk-Jo Kang
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Seung-Hyo Lee
- Graduate School of Medical Science and Engineering, KAIST, Daejeon 34141, Korea
| | - Eun-Kyeong Jo
- Department of Microbiology, Chungnam National University School of Medicine, Daejeon 35015, Korea
| | - Rho Hyun Seong
- School of Biological Sciences and Institute for Molecular Biology and Genetics, Seoul National University, Seoul 08826, Korea
- Corresponding author. (R.H.S.); (S.K.)
| | - Seyun Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- KAIST Institute for the BioCentury, KAIST, Daejeon 34141, Korea
- Corresponding author. (R.H.S.); (S.K.)
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45
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Suber T, Wei J, Jacko AM, Nikolli I, Zhao Y, Zhao J, Mallampalli RK. SCF FBXO17 E3 ligase modulates inflammation by regulating proteasomal degradation of glycogen synthase kinase-3β in lung epithelia. J Biol Chem 2017; 292:7452-7461. [PMID: 28298444 DOI: 10.1074/jbc.m116.771667] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/10/2017] [Indexed: 01/25/2023] Open
Abstract
Glycogen synthase kinase-3β (GSK3β) has diverse biological roles including effects on cellular differentiation, migration, and inflammation. GSK3β phosphorylates proteins to generate phosphodegrons necessary for recognition by Skp1/Cullin-1/F-box (SCF) E3 ubiquitin ligases leading to subsequent proteasomal degradation of these substrates. However, little is known regarding how GSK3β protein stability itself is regulated and how its stability may influence inflammation. Here we show that GSK3β is degraded by the ubiquitin-proteasome pathway in murine lung epithelial cells through lysine 183 as an acceptor site for K48 polyubiquitination. We have identified FBXO17 as an F-box protein subunit that recognizes and mediates GSK3β polyubiquitination. Both endogenous and ectopically expressed FBXO17 associate with GSK3β, and its overexpression leads to decreased protein levels of GSK3β. Silencing FBXO17 gene expression increased the half-life of GSK3β in cells. Furthermore, overexpression of FBXO17 inhibits agonist-induced release of keratinocyte-derived cytokine (KC) and interleukin-6 (IL-6) production by cells. Thus, the SCFFBXO17 E3 ubiquitin ligase complex negatively regulates inflammation by targeting GSK3β in lung epithelia.
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Affiliation(s)
- Tomeka Suber
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and
| | - Jianxin Wei
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and
| | - Anastasia M Jacko
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and
| | - Ina Nikolli
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and
| | - Yutong Zhao
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and
| | - Jing Zhao
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and
| | - Rama K Mallampalli
- From the Departments of Medicine, the Acute Lung Injury Center of Excellence, and .,Cell Biology, Physiology, and Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15213 and.,the Medical Specialty Service Line, Veterans Affairs Pittsburgh Healthcare System, Pittsburgh, Pennsylvania 15240
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46
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Abstract
Glycogen synthase kinase-3 (GSK-3) is a ubiquitously expressed protein kinase that sits at the nexus of multiple signaling pathways. Its deep integration into cellular control circuits is consummate to its implication in diseases ranging from mood disorders to diabetes to neurodegenerative diseases and cancers. The selectivity and insulation of such a promiscuous kinase from unwanted crosstalk between pathways, while orchestrating a multifaceted response to cellular stimuli, offer key insights into more general mechanisms of cell regulation. Here, we review recent advances that have contributed to the understanding of GSK-3 and its role in driving appreciation of intracellular signal coordination.
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Affiliation(s)
- Kevin W Cormier
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 600 University Avenue, Toronto, ON, M5G 1X5, Canada
| | - James R Woodgett
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 600 University Avenue, Toronto, ON, M5G 1X5, Canada
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47
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Gibson AL, Hui Mingalone CK, Foote AT, Uchimura T, Zhang M, Zeng L. Wnt7a Inhibits IL-1β Induced Catabolic Gene Expression and Prevents Articular Cartilage Damage in Experimental Osteoarthritis. Sci Rep 2017; 7:41823. [PMID: 28165497 PMCID: PMC5292965 DOI: 10.1038/srep41823] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 12/28/2016] [Indexed: 12/27/2022] Open
Abstract
Wnt7a is a protein that plays a critical role in skeletal development. However, its effect on cartilage homeostasis under pathological conditions is not known. In this study, we found a unique inverse correlation between Wnt7a gene expression and that of MMP and IL-1β in individual human OA cartilage specimens. Upon ectopic expression in primary human articular chondrocytes, Wnt7a inhibited IL-1β-induced MMP and iNOS gene expression. Western blot analysis indicated that Wnt7a induced both canonical Wnt signaling and NFAT and Akt non-canonical signaling. Interestingly, inhibiting the canonical and Akt pathway did not affect Wnt7a activity. However, inhibiting the NFAT pathway impaired Wnt7a’s ability to inhibit MMP expression, suggesting that Wnt7a requires NFAT signaling to exert this function. In vivo, intraarticular injection of lentiviral Wnt7a strongly attenuated articular cartilage damage induced by destabilization of the medial meniscus (DMM) OA-inducing surgery in mice. Consistently, Wnt7a also inhibited the progressive increase of joint MMP activity in DMM animals. These results indicate that Wnt7a signaling inhibits inflammatory stimuli-induced catabolic gene expression in human articular chondrocytes and is sufficient to attenuate MMP activities and promote joint cartilage integrity in mouse experimental OA, demonstrating a novel effect of Wnt7a on regulating OA pathogenesis.
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Affiliation(s)
- Averi L Gibson
- Program in Cellular, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA.,Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Carrie K Hui Mingalone
- Program in Cellular, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA.,Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Andrea T Foote
- Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Tomoya Uchimura
- Program in Cellular, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA.,Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Ming Zhang
- Department of Rheumatology, Tufts Medical Center, 800 Washington Street, Boston, MA 02111, USA
| | - Li Zeng
- Program in Cellular, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA.,Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA 02111, USA.,Department of Orthopedics, Tufts Medical Center, 800 Washington Street, Boston, MA 02111, USA
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48
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Abstract
Toll-like receptors (TLRs) play a critical role in the innate immune response against pathogens. Each TLR recognizes specific pathogen-associated molecular patterns, after which they activate the adaptor protein MyD88 or TRIF-assembled signaling complex to produce immune mediators, including inflammatory cytokines and type I IFNs. Although the activation of TLR is important for host defense, its uncontrolled activation can damage the host. During the past decade, numerous studies have demonstrated that GSK3β is a key regulator of inflammatory cytokine production in MyD88-mediated TLR signaling via TLR2 and TLR4. Recently, GSK3β has also been implicated in the TRIF-dependent signaling pathway via TLR3. In this review, we describe current advances on the regulatory role of GSK3β in immune responses associated with various TLRs. A better understanding of the role of GSK3β in TLR signaling might lead to more effective anti-inflammatory interventions. [BMB Reports 2016; 49(6): 305-310]
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Affiliation(s)
- Ryeojin Ko
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Korea
| | - Soo Young Lee
- Department of Life Science and the Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 03760, Korea
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49
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Park SJ, Huh JE, Shin J, Park DR, Ko R, Jin GR, Seo DH, Kim HS, Shin HI, Oh GT, Kim HS, Lee SY. Sirt6 cooperates with Blimp1 to positively regulate osteoclast differentiation. Sci Rep 2016; 6:26186. [PMID: 27189179 PMCID: PMC4870620 DOI: 10.1038/srep26186] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 04/27/2016] [Indexed: 01/06/2023] Open
Abstract
Global deletion of the gene encoding a nuclear histone deacetylase sirtuin 6 (Sirt6) in mice leads to osteopenia with a low bone turnover due to impaired bone formation. But whether Sirt6 regulates osteoclast differentiation is less clear. Here we show that Sirt6 functions as a transcriptional regulator to directly repress anti-osteoclastogenic gene expression. Targeted ablation of Sirt6 in hematopoietic cells including osteoclast precursors resulted in increased bone volume caused by a decreased number of osteoclasts. Overexpression of Sirt6 led to an increase in osteoclast formation, and Sirt6-deficient osteoclast precursor cells did not undergo osteoclast differentiation efficiently. Moreover, we showed that Sirt6, induced by RANKL-dependent NFATc1 expression, forms a complex with B lymphocyte-induced maturation protein-1 (Blimp1) to negatively regulate expression of anti-osteoclastogenic gene such as Mafb. These findings identify Sirt6 as a novel regulator of osteoclastogenesis by acting as a transcriptional repressor.
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Affiliation(s)
- So Jeong Park
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Jeong-Eun Huh
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Jihye Shin
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Doo Ri Park
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Ryeojin Ko
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
| | - Gyu-Rin Jin
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea.,Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea
| | - Dong-Hyun Seo
- Department of Biomedical Engineering, College of Health Science, Institute of Medical Engineering, Yonsei University, Wonju, Korea
| | - Han-Sung Kim
- Department of Biomedical Engineering, College of Health Science, Institute of Medical Engineering, Yonsei University, Wonju, Korea
| | - Hong-In Shin
- IHBR, Department of Oral Pathology, School of Dentistry, Kyungpook National University, Daegu 700-412, Korea
| | - Goo Taeg Oh
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea
| | - Hyun Seok Kim
- The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea.,Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea
| | - Soo Young Lee
- Department of Life Science, Ewha Womans University, Seoul 120-750, Korea.,The Research Center for Cellular Homeostasis, Ewha Womans University, Seoul 120-750, Korea
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