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Meng Y, Chen L, Chai Y, Meng W, Yang G, Ren J, Li H, Qi P, Chen J, Wang N. PUM2 promoted osteoarthritis progression through PTEN-mediated chondrocyte ferroptosis by facilitating NEDD4 mRNA degradation. ENVIRONMENTAL TOXICOLOGY 2024. [PMID: 38733337 DOI: 10.1002/tox.24310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/21/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024]
Abstract
Osteoarthritis (OA) is a prevalent degenerative joint disease with a lack of effective therapeutic. Chondrocyte ferroptosis contributes to the progression of OA. PUM2 is shown to exacerbate ischemia-reperfusion-induced neuroinflammation by promoting ferroptosis, but its role in OA remains unexplored. Here, primary mouse chondrocytes were stimulated with IL-1β to mimic OA chondrocyte injury in vitro. And PUM2 was upregulated in OA cartilage tissues and IL-1β-induced chondrocytes. Silencing PUM2 alleviated IL-1β-induced chondrocyte inflammation and ECM degradation. Mechanistically, PUM2 facilitated the degradation of NEDD4 mRNA by binding to the 3'UTR of NEDD4 mRNA, which in turn inhibited NEDD4 induced PTEN ubiquitination and degradation. Consistently, NEDD4 silencing reversed the ameliorative effect of PUM2 knockdown on chondrocyte injury, and overexpression of PTEN abolished the improved role of NEDD4 in chondrocyte injury. Moreover, PTEN aggravated IL-1β-induced ferroptosis in chondrocytes through the Nrf2/HO-1 pathway by increasing the levels of Fe2+, ROS, MDA, and ACSL4 protein, decreasing the activity of SOD and the levels of GSH and GPX4 protein, and aggravating mitochondrial damage. Additionally, destabilized medial meniscus (DMM) were conducted to establish the OA mouse model, and adenovirus-mediated PUM2 shRNA was administered intra-articularly. Silencing PUM2 attenuated OA-induced cartilage damage in vivo. In conclusion, PUM2 promoted OA progression through PTEN-mediated chondrocyte ferroptosis by facilitating NEDD4 mRNA degradation.
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Affiliation(s)
- Yu Meng
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Li Chen
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuxia Chai
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Weili Meng
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Guohui Yang
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jia Ren
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hongshuai Li
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Peiyi Qi
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Juwu Chen
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Nan Wang
- Department of Emergency Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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2
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Li Q, Zhang F, Wang H, Tong Y, Fu Y, Wu K, Li J, Wang C, Wang Z, Jia Y, Chen R, Wu Y, Cui R, Wu Y, Qi Y, Qu K, Liu C, Zhang J. NEDD4 lactylation promotes APAP induced liver injury through Caspase11 dependent non-canonical pyroptosis. Int J Biol Sci 2024; 20:1413-1435. [PMID: 38385085 PMCID: PMC10878146 DOI: 10.7150/ijbs.91284] [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: 10/19/2023] [Accepted: 01/07/2024] [Indexed: 02/23/2024] Open
Abstract
Caspase-11 detection of intracellular lipopolysaccharide mediates non-canonical pyroptosis, which could result in inflammatory damage and organ lesions in various diseases such as sepsis. Our research found that lactate from the microenvironment of acetaminophen-induced acute liver injury increased Caspase-11 levels, enhanced gasdermin D activation and accelerated macrophage pyroptosis, which lead to exacerbation of liver injury. Further experiments unveiled that lactate inhibits Caspase-11 ubiquitination by reducing its binding to NEDD4, a negative regulator of Caspase-11. We also identified that lactates regulated NEDD4 K33 lactylation, which inhibits protein interactions between Caspase-11 and NEDD4. Moreover, restraining lactylation reduces non-canonical pyroptosis in macrophages and ameliorates liver injury. Our work links lactate to the exquisite regulation of the non-canonical inflammasome, and provides a basis for targeting lactylation signaling to combat Caspase-11-mediated non-canonical pyroptosis and acetaminophen-induced liver injury.
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Affiliation(s)
- Qinglin Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
- Department of Vascular Surgery, Xiangya Hospital, Central South University, Changsha, People's Republic of China
| | - Fengping Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
| | - Hai Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
| | - Yingmu Tong
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
- Department of General Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
| | - Yunong Fu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
| | - Kunjin Wu
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
- Department of Hepatobiliary Surgery and Liver Transplantation, The Second Affiliated Hospital of Xi'an Jiaotong University, People's Republic of China
| | - Jing Li
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
- Department of Hepatobiliary Surgery and Liver Transplantation, The Second Affiliated Hospital of Xi'an Jiaotong University, People's Republic of China
| | - Cong Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
| | - Zi Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
| | - Yifan Jia
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
- Department of Vascular Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
| | - Rui Chen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
| | - Yang Wu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
| | - Ruixia Cui
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
| | - Yi Wu
- MOE Key Laboratory of Environment and Genes Related to Diseases, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
| | - Yun Qi
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
| | - Kai Qu
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
- Department of Hepatobiliary Surgery and Liver Transplantation, The Second Affiliated Hospital of Xi'an Jiaotong University, People's Republic of China
| | - Chang Liu
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
- Department of Hepatobiliary Surgery and Liver Transplantation, The Second Affiliated Hospital of Xi'an Jiaotong University, People's Republic of China
| | - Jingyao Zhang
- Key Laboratory of Surgical Critical Care and Life Support (Xi'an Jiaotong University), Ministry of Education, People's Republic of China
- Department of SICU, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Shaanxi 710061, People's Republic of China
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3
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Miyauchi S, Arimoto KI, Liu M, Zhang Y, Zhang DE. Reprogramming of tumor-associated macrophages via NEDD4-mediated CSF1R degradation by targeting USP18. Cell Rep 2023; 42:113560. [PMID: 38100351 PMCID: PMC10822669 DOI: 10.1016/j.celrep.2023.113560] [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: 03/25/2023] [Revised: 07/25/2023] [Accepted: 11/23/2023] [Indexed: 12/17/2023] Open
Abstract
Tumor-associated myeloid cells modulate the tumor microenvironment and affect tumor progression. Type I interferon (IFN-I) has multiple effects on tumors and immune response, and ubiquitin-specific peptidase 18 (USP18) functions as a negative regulator of IFN-I signal transduction. This study aims to examine the function of IFN-I in myeloid cells during tumor progression. Here, we show that deletion of USP18 in myeloid cells suppresses tumor progression. Enhanced IFN-I signaling and blocked USP18 expression prompt downregulation of colony stimulating factor 1 receptor (CSF1R) and polarization of tumor-associated macrophages toward pro-inflammatory phenotypes. Further in vitro experiments reveal that downregulation of CSF1R is mediated by ubiquitin-proteasome degradation via E3 ligase neural precursor cell-expressed, developmentaly downregulated 4 (NEDD4) and the IFN-induced increase in ubiquitin E2 ubiquitin-conjugating enzyme H5. USP18 impairs ubiquitination and subsequent degradation of CSF1R by interrupting NEDD4 binding to CSF1R. These results reveal a previously unappreciated role of IFN-I in macrophage polarization by regulating CSF1R via USP18 and suggest targeting USP18 in myeloid-lineage cells as an effective strategy for IFN-based therapies.
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Affiliation(s)
- Sayuri Miyauchi
- Moores Cancer Center, University of California San Diego, La Jolla, CA 92037, USA
| | - Kei-Ichiro Arimoto
- Moores Cancer Center, University of California San Diego, La Jolla, CA 92037, USA
| | - Mengdan Liu
- Moores Cancer Center, University of California San Diego, La Jolla, CA 92037, USA; School of Biological Sciences, University of California San Diego, La Jolla, CA 92037, USA
| | - Yue Zhang
- Moores Cancer Center, University of California San Diego, La Jolla, CA 92037, USA; School of Biological Sciences, University of California San Diego, La Jolla, CA 92037, USA
| | - Dong-Er Zhang
- Moores Cancer Center, University of California San Diego, La Jolla, CA 92037, USA; School of Biological Sciences, University of California San Diego, La Jolla, CA 92037, USA; Department of Pathology, University of California San Diego, La Jolla, CA 92037, USA.
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4
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Boateng ST, Roy T, Torrey K, Owunna U, Banang-Mbeumi S, Basnet D, Niedda E, Alexander AD, Hage DE, Atchimnaidu S, Nagalo BM, Aryal D, Findley A, Seeram NP, Efimova T, Sechi M, Hill RA, Ma H, Chamcheu JC, Murru S. Synthesis, in silico modelling, and in vitro biological evaluation of substituted pyrazole derivatives as potential anti-skin cancer, anti-tyrosinase, and antioxidant agents. J Enzyme Inhib Med Chem 2023; 38:2205042. [PMID: 37184042 PMCID: PMC10187093 DOI: 10.1080/14756366.2023.2205042] [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: 11/23/2022] [Accepted: 04/16/2023] [Indexed: 05/16/2023] Open
Abstract
Twenty-five azole compounds (P1-P25) were synthesised using regioselective base-metal catalysed and microwave-assisted approaches, fully characterised by high-resolution mass spectrometry (HRMS), nuclear magnetic resonance (NMR), and infrared spectra (IR) analyses, and evaluated for anticancer, anti-tyrosinase, and anti-oxidant activities in silico and in vitro. P25 exhibited potent anticancer activity against cells of four skin cancer (SC) lines, with selectivity for melanoma (A375, SK-Mel-28) or non-melanoma (A431, SCC-12) SC cells over non-cancerous HaCaT-keratinocytes. Clonogenic, scratch-wound, and immunoblotting assay data were consistent with anti-proliferative results, expression profiling therewith implicating intrinsic and extrinsic apoptosis activation. In a mushroom tyrosinase inhibition assay, P14 was most potent among the compounds (half-maximal inhibitory concentration where 50% of cells are dead, IC50 15.9 μM), with activity greater than arbutin and kojic acid. Also, P6 exhibited noteworthy free radical-scavenging activity. Furthermore, in silico docking and absorption, distribution, metabolism, excretion, and toxicity (ADMET) simulations predicted prominent-phenotypic actives to engage diverse cancer/hyperpigmentation-related targets with relatively high affinities. Altogether, promising early-stage hits were identified - some with multiple activities - warranting further hit-to-lead optimisation chemistry with further biological evaluations, towards identifying new skin-cancer and skin-pigmentation renormalising agents.
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Affiliation(s)
- Samuel T. Boateng
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Tithi Roy
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Kara Torrey
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, Bioactive Botanical Research Laboratory, University of Rhode Island, Kingston, RI, USA
| | - Uchechi Owunna
- School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, LA, USA
| | - Sergette Banang-Mbeumi
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
- School of Nursing and Allied Health Sciences, Louisiana Delta Community College, Monroe, LA, USA
| | - David Basnet
- School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, LA, USA
| | - Eleonora Niedda
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Sassari, Italy
| | - Alexis D. Alexander
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Denzel El Hage
- School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, LA, USA
| | - Siriki Atchimnaidu
- School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, LA, USA
| | - Bolni Marius Nagalo
- Department of Pathology, University of Arkansas for Medical Sciences (UAMS), Little Rock, AR, USA
- The Winthrop P. Rockefeller Cancer Institute, UAMS, Little Rock, AR, USA
| | - Dinesh Aryal
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
- Department of Biomedical Affairs and Research, Edward Via College of Osteopathic Medicine, Monroe, LA, USA
| | - Ann Findley
- School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, LA, USA
| | - Navindra P. Seeram
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, Bioactive Botanical Research Laboratory, University of Rhode Island, Kingston, RI, USA
| | - Tatiana Efimova
- Department of Biomedical Engineering, Northwestern University, Chicago, IL, USA
| | - Mario Sechi
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Sassari, Italy
| | - Ronald A. Hill
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Hang Ma
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, Bioactive Botanical Research Laboratory, University of Rhode Island, Kingston, RI, USA
| | - Jean Christopher Chamcheu
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana at Monroe, Monroe, LA, USA
| | - Siva Murru
- School of Sciences, College of Arts, Education and Sciences, University of Louisiana at Monroe, Monroe, LA, USA
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5
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Cabezas F, Cabello-Verrugio C, González N, Salas J, Ramírez MJ, de la Vega E, Olguín HC. NEDD4-1 deficiency impairs satellite cell function during skeletal muscle regeneration. Biol Res 2023; 56:21. [PMID: 37147738 PMCID: PMC10161651 DOI: 10.1186/s40659-023-00432-7] [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: 01/10/2023] [Accepted: 04/17/2023] [Indexed: 05/07/2023] Open
Abstract
BACKGROUND Satellite cells are tissue-specific stem cells primarily responsible for the regenerative capacity of skeletal muscle. Satellite cell function and maintenance are regulated by extrinsic and intrinsic mechanisms, including the ubiquitin-proteasome system, which is key for maintaining protein homeostasis. In this context, it has been shown that ubiquitin-ligase NEDD4-1 targets the transcription factor PAX7 for proteasome-dependent degradation, promoting muscle differentiation in vitro. Nonetheless, whether NEDD4-1 is required for satellite cell function in regenerating muscle remains to be determined. RESULTS Using conditional gene ablation, we show that NEDD4-1 loss, specifically in the satellite cell population, impairs muscle regeneration resulting in a significant reduction of whole-muscle size. At the cellular level, NEDD4-1-null muscle progenitors exhibit a significant decrease in the ability to proliferate and differentiate, contributing to the formation of myofibers with reduced diameter. CONCLUSIONS These results indicate that NEDD4-1 expression is critical for proper muscle regeneration in vivo and suggest that it may control satellite cell function at multiple levels.
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Affiliation(s)
- Felipe Cabezas
- Laboratory of Tissue Repair and Adult Stem Cells, Molecular and Cell Biology Department, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Ciencias Biológicas y Químicas, Facultad de Medicina y Ciencia, Universidad San Sebastián, Lota 2465, 7510157, Santiago, Chile
| | - Claudio Cabello-Verrugio
- Laboratory of Muscle Pathology, Fragility and Aging, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
- Millennium Institute on Immunology and Immunotherapy, Faculty of Life Sciences, Universidad Andres Bello, Santiago, Chile
| | - Natalia González
- Laboratory of Tissue Repair and Adult Stem Cells, Molecular and Cell Biology Department, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jeremy Salas
- Laboratory of Tissue Repair and Adult Stem Cells, Molecular and Cell Biology Department, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Manuel J Ramírez
- Laboratory of Tissue Repair and Adult Stem Cells, Molecular and Cell Biology Department, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Eduardo de la Vega
- Laboratory of Tissue Repair and Adult Stem Cells, Molecular and Cell Biology Department, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Hugo C Olguín
- Laboratory of Tissue Repair and Adult Stem Cells, Molecular and Cell Biology Department, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile.
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6
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Xu H, Tan L, Qu Q, Zhang W. NEDD4 attenuates oxidized low‑density lipoprotein‑induced inflammation and dysfunction in vascular endothelial cells via regulating APEX1 expression. Exp Ther Med 2023; 25:88. [PMID: 36684652 PMCID: PMC9849851 DOI: 10.3892/etm.2023.11787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 10/05/2022] [Indexed: 01/06/2023] Open
Abstract
Atherosclerosis chiefly results from inflammation as well as vascular endothelial cell dysfunction. Methylation levels of neuronally expressed developmentally downregulated 4 (NEDD4) were found to be fortified in atherosclerosis patients and NEDD4 deficiency enhanced vascular calcification. However, the exact function of NEDD4 in inflammation and vascular endothelial dysfunction remains to be elucidated. In the present study, CCK-8 assay was used to estimate cell viability. Reverse transcription-quantitative PCR was adopted to examine the expression of NEDD4, inflammation-associated enzymes and apurinic/apyrimidinic endodeoxyribonuclease 1 (APEX1). Western blotting was used to test NEDD4, endothelial nitric oxide synthase, inducible nitric oxide synthase and APEX1 protein levels. Cytotoxicity was detected by a lactate dehydrogenase (LDH) kit. Reactive oxygen species level was tested by a corresponding kit. Vascular cell adhesion molecule 1 and intercellular adhesion molecule 1 contents were examined with ELISA. Cell adhesion assays evaluated the adhesion of endothelial cells. Co-immunoprecipitation assay was used to test the relationship between NEDD4 and APEX1. The data revealed that NEDD4 expression rapidly declined in oxidized low density lipoprotein (ox-LDL)-induced human umbilical vein endothelial cells (HUVECs). Following NEDD4 overexpression, the active damage, inflammatory release and endothelial cell dysfunction in ox-LDL-induced HUVECs were attenuated. After co-transfection of APEX1 interference plasmids and NEDD4 overexpression plasmids, cell damage, inflammatory release and endothelial cell dysfunction in ox-LDL-induced HUVECs were improved again. Taken together, NEDD4 attenuated ox-LDL-induced inflammation and endothelial dysfunction by regulating APEX1 expression.
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Affiliation(s)
- Huiyu Xu
- Department of Critical Care Medicine, Shanxi Cardiovascular Hospital, Taiyuan, Shanxi 030024, P.R. China
| | - Lijuan Tan
- Department of Critical Care Medicine, Shanxi Cardiovascular Hospital, Taiyuan, Shanxi 030024, P.R. China
| | - Qiaofang Qu
- Department of Critical Care Medicine, Shanxi Cardiovascular Hospital, Taiyuan, Shanxi 030024, P.R. China
| | - Wutang Zhang
- Department of Critical Care Medicine, Shanxi Cardiovascular Hospital, Taiyuan, Shanxi 030024, P.R. China,Correspondence to: Dr Wutang Zhang, Department of Critical Care Medicine, Shanxi Cardiovascular Hospital, 18 Yifen Road, Taiyuan, Shanxi 030024, P.R. China
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7
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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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8
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Zhao YY, Wu DM, He M, Zhang F, Zhang T, Liu T, Li J, Li L, Xu Y. Samotolisib Attenuates Acute Liver Injury Through Inhibiting Caspase-11-Mediated Pyroptosis Via Regulating E3 Ubiquitin Ligase Nedd4. Front Pharmacol 2021; 12:726198. [PMID: 34483936 PMCID: PMC8414251 DOI: 10.3389/fphar.2021.726198] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 07/31/2021] [Indexed: 01/14/2023] Open
Abstract
Acute liver injury (ALI) is associated with poor survival in patients with sepsis. During sepsis, the liver is the main site of bacterial endotoxin-induced inflammation. Lipopolysaccharide (LPS) promotes caspase-4/5/11 activation, leading to pyroptosis, a major sepsis driver. This study aimed to identify novel drugs that can control hepatocyte caspase-4/5/11 activation during sepsis. We performed LPS-induced caspase-11 activation and pyroptosis in RAW 264.7 cells and established an LPS-induced ALI mouse model. We identified samotolisib (ST), a novel dual phosphoinositide 3-kinase (PI3K) and mammalian target of rapamycin (mTOR) inhibitor, by screening a library of 441 pyroptosis compounds with known targets, which dose-dependently inhibited caspase-11 activation and N-terminal fragment of gasdermin D (GSDMD-NT) generation, reducing RAW 264.7 cell pyroptosis. In mice, ST preconditioning improved survival, attenuated LPS-induced serum alanine aminotransferase and aspartate aminotransferase activity, and inhibited severe liver inflammation and damage. Importantly, ST treatment activated Nedd4, which directly interacts with and mediates caspase-11 ubiquitination and degradation. This was largely abrogated by insulin-like growth factor 1. ST ameliorated LPS-induced hepatotoxicity by inhibiting caspase-11/GSDMD-NT pyroptosis signaling via regulating PI3K/AKT/mTOR/Nedd4 signaling. Hence, ST may play a key role in the prevention of liver injury in patients with sepsis.
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Affiliation(s)
- Yang-Yang Zhao
- Chengdu Medical College, Chengdu, China.,The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Dong-Ming Wu
- Chengdu Medical College, Chengdu, China.,The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
| | - Miao He
- Chengdu Medical College, Chengdu, China
| | | | | | - Teng Liu
- Chengdu Medical College, Chengdu, China
| | - Jin Li
- Chengdu Medical College, Chengdu, China
| | - Li Li
- Chengdu Medical College, Chengdu, China
| | - Ying Xu
- Chengdu Medical College, Chengdu, China.,The First Affiliated Hospital of Chengdu Medical College, Chengdu, China
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9
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Shannon CP, Blimkie TM, Ben-Othman R, Gladish N, Amenyogbe N, Drissler S, Edgar RD, Chan Q, Krajden M, Foster LJ, Kobor MS, Mohn WW, Brinkman RR, Le Cao KA, Scheuermann RH, Tebbutt SJ, Hancock RE, Koff WC, Kollmann TR, Sadarangani M, Lee AHY. Multi-Omic Data Integration Allows Baseline Immune Signatures to Predict Hepatitis B Vaccine Response in a Small Cohort. Front Immunol 2020; 11:578801. [PMID: 33329547 PMCID: PMC7734088 DOI: 10.3389/fimmu.2020.578801] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 10/15/2020] [Indexed: 12/11/2022] Open
Abstract
Background Vaccination remains one of the most effective means of reducing the burden of infectious diseases globally. Improving our understanding of the molecular basis for effective vaccine response is of paramount importance if we are to ensure the success of future vaccine development efforts. Methods We applied cutting edge multi-omics approaches to extensively characterize temporal molecular responses following vaccination with hepatitis B virus (HBV) vaccine. Data were integrated across cellular, epigenomic, transcriptomic, proteomic, and fecal microbiome profiles, and correlated to final HBV antibody titres. Results Using both an unsupervised molecular-interaction network integration method (NetworkAnalyst) and a data-driven integration approach (DIABLO), we uncovered baseline molecular patterns and pathways associated with more effective vaccine responses to HBV. Biological associations were unravelled, with signalling pathways such as JAK-STAT and interleukin signalling, Toll-like receptor cascades, interferon signalling, and Th17 cell differentiation emerging as important pre-vaccination modulators of response. Conclusion This study provides further evidence that baseline cellular and molecular characteristics of an individual's immune system influence vaccine responses, and highlights the utility of integrating information across many parallel molecular datasets.
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Affiliation(s)
- Casey P. Shannon
- Prevention of Organ Failure (PROOF) Centre of Excellence and Centre for Heart Lung Innovation, St. Paul’s Hospital, Vancouver, BC, Canada
- UBC Centre for Heart Lung Innovation, St. Paul’s Hospital, Vancouver, BC, Canada
| | - Travis M. Blimkie
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Rym Ben-Othman
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
- Telethon Kids Institute, Perth Children’s Hospital, University of Western Australia, Nedlands, WA, Australia
| | - Nicole Gladish
- Centre for Molecular Medicine and Therapeutics, BC Children’s Hospital Research Institute, Department of Medical Genetics, The University of British Columbia, Vancouver, BC, Canada
| | - Nelly Amenyogbe
- Telethon Kids Institute, Perth Children’s Hospital, University of Western Australia, Nedlands, WA, Australia
- Department of Experimental Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Sibyl Drissler
- Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada
| | - Rachel D. Edgar
- Centre for Molecular Medicine and Therapeutics, BC Children’s Hospital Research Institute, Department of Medical Genetics, The University of British Columbia, Vancouver, BC, Canada
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Cambridge, United Kingdom
| | - Queenie Chan
- Department of Biochemistry & Molecular Biology, Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada
| | - Mel Krajden
- British Columbia Centre for Disease Control, Vancouver, BC, Canada
| | - Leonard J. Foster
- Department of Biochemistry & Molecular Biology, Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada
| | - Michael S. Kobor
- Centre for Molecular Medicine and Therapeutics, BC Children’s Hospital Research Institute, Department of Medical Genetics, The University of British Columbia, Vancouver, BC, Canada
| | - William W. Mohn
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | - Ryan R. Brinkman
- Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, BC, Canada
| | - Kim-Anh Le Cao
- Melbourne Integrative Genomics, School of Mathematics and Statistics, The University of Melbourne, Parkville, VIC, Australia
| | - Richard H. Scheuermann
- Department of Informatics, J. Craig Venter Institute, La Jolla, CA, United States
- Department of Pathology, University of California, San Diego, CA, United States
- Division of Vaccine Discovery, La Jolla Institute for Immunology, La Jolla, CA, United States
| | - Scott J. Tebbutt
- Prevention of Organ Failure (PROOF) Centre of Excellence and Centre for Heart Lung Innovation, St. Paul’s Hospital, Vancouver, BC, Canada
- UBC Centre for Heart Lung Innovation, St. Paul’s Hospital, Vancouver, BC, Canada
- Department of Medicine, Division of Respiratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Robert E.W. Hancock
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
| | | | - Tobias R. Kollmann
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
- Telethon Kids Institute, Perth Children’s Hospital, University of Western Australia, Nedlands, WA, Australia
| | - Manish Sadarangani
- Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
- Vaccine Evaluation Center, BC Children’s Hospital Research Institute, Vancouver, BC, Canada
| | - Amy Huei-Yi Lee
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
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10
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Liu J, Yu X, Liu B, Yu H, Li Z. Phosphorylated MAPK14 Promotes the Proliferation and Migration of Bladder Cancer Cells by Maintaining RUNX2 Protein Abundance. Cancer Manag Res 2020; 12:11371-11382. [PMID: 33204153 PMCID: PMC7661795 DOI: 10.2147/cmar.s274058] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 10/21/2020] [Indexed: 01/20/2023] Open
Abstract
Background Mitogen-activated protein kinase 14 (MAPK14) acts as an integration point for multiple biochemical signal pathways. High expressions of MAPK14 have been found in a variety of tumors. Runt‑related transcription factor 2 (RUNX2) is related to many tumors, especially in tumor invasion and metastasis. However, the mechanism of these two genes in bladder cancer remains unclear. Methods TCGA database and Western blot were used to analyze the mRNA and protein levels of the target gene in bladder cancer tissues and adjacent tissues. The proliferation ability of bladder cancer cells was tested by colony forming and EdU assay. The migration ability of cells was detected by transwell assay. Immunoprecipitation was utilized to detect protein-protein interaction. Cycloheximide chase assay was used to measure the half-life of RUNX2 protein. Results Phosphorylated mitogen-activated protein kinase 14 (P-MAPK14, Thr180/Tyr182) was highly expressed in bladder cancer tissues and bladder cancer cell lines. Accordingly, P-MAPK14 could be combined with RUNX2 and maintain its protein stability and promote the proliferation and migration of bladder cancer cells. In addition, the functional degradation caused by the downregulation of MAPK14 and P-MAPK14 could be partially compensated by the overexpression of RUNX2. Conclusion These results suggest that P-MAPK14 might play an important role in the development of bladder cancer and in the regulation of RUNX2 protein expression. P-MAPK14 might become a potential target for the treatment of bladder cancer.
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Affiliation(s)
- Junlong Liu
- Department of Urology, The First Hospital of China Medical University, Shenyang, Liaoning 110001, People's Republic of China
| | - Xiuyue Yu
- Department of Urology, The First Hospital of China Medical University, Shenyang, Liaoning 110001, People's Republic of China
| | - Bitian Liu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, People's Republic of China
| | - Hongyuan Yu
- Department of Urology, The First Hospital of China Medical University, Shenyang, Liaoning 110001, People's Republic of China
| | - Zhenhua Li
- Department of Urology, The First Hospital of China Medical University, Shenyang, Liaoning 110001, People's Republic of China
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11
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Dihydroartemisinin prevents dextran sodium sulphate-induced colitisthrough inhibition of the activation of NLRP3 inflammasome and p38 MAPK signaling. Int Immunopharmacol 2020; 88:106949. [PMID: 32892075 DOI: 10.1016/j.intimp.2020.106949] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/17/2020] [Accepted: 08/27/2020] [Indexed: 12/24/2022]
Abstract
Dihydroartemisinin (DHA), a sesquiterpene lactone derived from artemisinin, has been reported to possess anti-inflammation and anti-cancer activities. But its underlying protective mechanisms on dextran sodium sulphate (DSS)-induced colitis remain rarely reported. We applied a network pharmacology approach to predict the collective targets of DHA and acute colitis. GO and KEGG analyses were performed to investigate the enriched biological functions and signaling pathways of the collective targets. Furthermore, a DSS-induced colitis model was established to observe the protective effects of DHA. 83 common targets of DHA and acute colitis were identified and predominantly involved in several inflammation-related signaling pathways in colitis such as NOD-like receptor and MAPK signaling pathways. Additionally, DHA in vivo improved the clinical symptoms, reduced the production of pro-inflammatory factors IL-1β, IL-6 and TNF-α, and suppressed the formation of NLRP3 inflammasome. Moreover, DHA inhibited the phosphorylation of NF-κB p65 and p38 MAPK, but upregulated PPARγ and Ki-67 levels compared to the DSS group. Additionally, we found that DHA suppressed p38 activator-induced pro-inflammatory response, and p38 inhibitor attenuated the clinical symptoms and reduced the expression levels of pro-inflammatory mediators and NLRP3 while up-regulated the expression levels of PPARγ and Ki-67. Molecular docking analysis further verified the binding mode towards the DHA and p38 MAPK. In conclusion, DHA could protect DSS-induced colitis via suppressing the activation of NLRP3 inflammasome and p38 MAPK signaling.
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12
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Manning J, Windley SP, Sandow JJ, Shah SS, Western P, Wilhelm D, Kumar S. Identification of novel interacting partners of the NEDD4 ubiquitin ligase in mouse testis. J Proteomics 2020; 223:103830. [PMID: 32450490 DOI: 10.1016/j.jprot.2020.103830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 04/14/2020] [Accepted: 05/14/2020] [Indexed: 12/24/2022]
Abstract
Posttranslational modification by ubiquitination targets proteins for degradation, recycling, stabilization or altered trafficking, and as such can alter cellular signaling pathways. The substrate specificity of this multistep process is controlled by ubiquitin ligases, including those of the HECT domain-containing NEDD4 family. In the testis, ubiquitination of many proteins contributes to organ development and maturation of spermatozoa and NEDD4 is known to be important in the control of spermatogonial stem cell homeostasis. However, a comprehensive understanding of NEDD4 substrates in testis development is lacking. Here we demonstrate high expression of Nedd4 in somatic cells of the mouse testis and in the murine Leydig cell-like cell line TM3. Immunoprecipitation of NEDD4 tagged with GFP at either the amino or carboxyl terminus was subjected to proteomic analysis for interacting proteins. We identified a substantial list of potential interaction partners, including known NEDD4 substrates, proteins involved in ubiquitination and proteins important for testis development and spermatogenesis. We confirmed the interaction of NEDD4 with a subset of these putative interacting proteins, validating the integrity of the dataset. These potential interactors may be further explored to reveal important roles of NEDD4-mediated ubiquitination in the testis. SIGNIFICANCE: Ubiquitination is important for testis development and function, and NEDD4 is known to ubiquitinate various proteins to affect cellular signaling and development, including those implicated in spermatogenesis. However, substrates of NEDD4 that are important during testis development remain to be identified. Here we report NEDD4 expression in the developing testis and TM3 testicular cell line. This study identifies a substantial list of NEDD4 interacting proteins in the TM3 testicular cell line, with validation of some of these interactions. Hence, this provides novel NEDD4 targets that may contribute to testis development and function that may be further explored.
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Affiliation(s)
- JantinaA Manning
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA 5001, Australia.
| | - Simon P Windley
- Department of Anatomy and Neuroscience, University of Melbourne, Parkville, VIC 3010, Australia
| | - Jarrod J Sandow
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3052, Australia
| | - Sonia S Shah
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA 5001, Australia
| | - Patrick Western
- Centre for Reproductive Health, Hudson Institute of Medical Research, Clayton, VIC 3800, Australia
| | - Dagmar Wilhelm
- Department of Anatomy and Neuroscience, University of Melbourne, Parkville, VIC 3010, Australia
| | - Sharad Kumar
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA 5001, Australia.
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13
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Sun A, Hao J, Yu L, Lahiri SK, Yang W, Lin Q, Zhao J. Regulation of Krüppel-like factor 8 by the NEDD4 E3 ubiquitin ligase. Am J Transl Res 2019; 11:1521-1530. [PMID: 30972179 PMCID: PMC6456509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/18/2018] [Indexed: 06/09/2023]
Abstract
Krüppel-like factor 8 (KLF8) plays many important roles in various diseases, especially cancer. Previous studies have shown that KLF8 is regulated by ubiquitylation. The molecular mechanism underlying this posttranslational modification of KLF8, however, has not been investigated. Reported here is our identification of the neural precursor cell expressed, developmentally down-regulated 4 (NEDD4) as the E3 ubiquitin ligase for this modification. By co-immunoprecipitation and ubiquitylation assays, we determined that KLF8 interacts with NEDD4 and is ubiquitylated by NEDD4. By site-directed mutagenesis and pharmacological inhibition of MEK, we found that the ubiquitylation of KLF8 by NEDD4 depends upon the phosphorylation of KLF8 at serine 48 by ERK. Cycloheximide chase analysis, target gene promoter reporter assay and fluorescent staining indicated that NEDD4 plays a critical role in promoting the stability and transcriptional activity of KLF8 in the nucleus. Taken together, this work identified NEDD4 as a novel E3 ubiquitin ligase for KLF8 that provides insights into targeting the KLF8-NEDD4 axis to treat various types of cancer associated with overexpression of both proteins.
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Affiliation(s)
- Aiqin Sun
- Burnett School of Biomedical Sciences University of Central Florida College of MedicineOrlando, FL 32827, USA
- School of Medicine Jiangsu UniversityZhenjiang, China
| | - Jie Hao
- Burnett School of Biomedical Sciences University of Central Florida College of MedicineOrlando, FL 32827, USA
| | - Lin Yu
- Burnett School of Biomedical Sciences University of Central Florida College of MedicineOrlando, FL 32827, USA
| | - Satadru K Lahiri
- Burnett School of Biomedical Sciences University of Central Florida College of MedicineOrlando, FL 32827, USA
- Cardiovascular Research Institute and Department of Molecular Physiology and Biophysics, Baylor College of MedicineHouston, TX 77030, USA
| | - Wannian Yang
- School of Medicine Jiangsu UniversityZhenjiang, China
| | - Qiong Lin
- School of Medicine Jiangsu UniversityZhenjiang, China
| | - Jihe Zhao
- Burnett School of Biomedical Sciences University of Central Florida College of MedicineOrlando, FL 32827, USA
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14
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Liu Q, Zhang S, Sun Z, Guo X, Zhou H. E3 ubiquitin ligase Nedd4 is a key negative regulator for non-canonical inflammasome activation. Cell Death Differ 2019; 26:2386-2399. [PMID: 30816303 DOI: 10.1038/s41418-019-0308-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 02/10/2019] [Accepted: 02/11/2019] [Indexed: 02/07/2023] Open
Abstract
The non-canonical inflammasome plays important roles in endotoxic shock and pyroptosis. Murine caspase-11, corresponding to human caspase-4, is centrally located in the non-canonical inflammasome pathway, which is directly activated by cytosolic lipopolysaccharide. It has been reported that ubiquitination strictly regulates inflammatory responses. However, the role of ubiquitination in regulating the non-canonical inflammasome is little known. In this study, we show that the E3 ubiquitin ligase, Nedd4 is an important negative regulatory component of the non-canonical inflammasome pathway. Nedd4 deficiency promoted mouse death from sepsis and cell pyroptosis, resulting from non-canonical inflammasome activation. Furthermore, Nedd4 induced the K48-linked polyubiquitination and subsequent degradation of caspase-11 through the 26S proteasome. Meanwhile, caspase-11 (or caspase-4) reciprocally regulated the level of Nedd4 protein by cleavage. Thus, Nedd4 appears to have a key role in balancing the level of non-canonical inflammasome activation in response to gram-negative bacterial infection.
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Affiliation(s)
- Qingjun Liu
- Institute of Health Service and Transfusion Medicine, Academy of Military Medical Sciences, Taiping Road 27, Haidian District, 100850, Beijing, China.
| | - Shihui Zhang
- Institute of Health Service and Transfusion Medicine, Academy of Military Medical Sciences, Taiping Road 27, Haidian District, 100850, Beijing, China
| | - Zhongjie Sun
- Newish technology (Beijing) Co., Economic and Technical Development Zone Ltd., Xihuan South Road 18, 100176, Beijing, China
| | - Xiao Guo
- Newish technology (Beijing) Co., Economic and Technical Development Zone Ltd., Xihuan South Road 18, 100176, Beijing, China
| | - Hong Zhou
- Institute of Health Service and Transfusion Medicine, Academy of Military Medical Sciences, Taiping Road 27, Haidian District, 100850, Beijing, China.
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