1
|
Zhang M, Zhang Z, Tian X, Zhang E, Wang Y, Tang J, Zhao J. NEDD4L in human tumors: regulatory mechanisms and dual effects on anti-tumor and pro-tumor. Front Pharmacol 2023; 14:1291773. [PMID: 38027016 PMCID: PMC10666796 DOI: 10.3389/fphar.2023.1291773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
Tumorigenesis and tumor development are closely related to the abnormal regulation of ubiquitination. Neural precursor cell expressed developmentally downregulated 4-like (NEDD4L), an E3 ubiquitin ligase critical to the ubiquitination process, plays key roles in the regulation of cancer stem cells, as well as tumor cell functions, including cell proliferation, apoptosis, cell cycle regulation, migration, invasion, epithelial-mesenchymal transition (EMT), and tumor drug resistance, by controlling subsequent protein degradation through ubiquitination. NEDD4L primarily functions as a tumor suppressor in several tumors but also plays an oncogenic role in certain tumors. In this review, we comprehensively summarize the relevant signaling pathways of NEDD4L in tumors, the regulatory mechanisms of its upstream regulatory molecules and downstream substrates, and the resulting functional alterations. Overall, therapeutic strategies targeting NEDD4L to treat cancer may be feasible.
Collapse
Affiliation(s)
- Meng Zhang
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Zhenyong Zhang
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xin Tian
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Enchong Zhang
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yichun Wang
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jun Tang
- Department of Thoracic Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jianzhu Zhao
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| |
Collapse
|
2
|
Wang J, Ding Y, Li D, Zhu N, Nishiyama A, Yuan Y. (Pro)renin receptor promotes colorectal cancer progression through inhibiting the NEDD4L-mediated Wnt3 ubiquitination and modulating gut microbiota. Cell Commun Signal 2023; 21:2. [PMID: 36597142 PMCID: PMC9809055 DOI: 10.1186/s12964-022-01015-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 12/11/2022] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND We previously found that (pro)renin receptor ((P)RR) augments Wnt3 protein without affecting Wnt3 gene transcription in colorectal cancer (CRC) cells, thus contributes to CRC initiation. The present study aims to investigate whether (P)RR further promotes CRC progression following oncogenesis and the related mechanisms. Notably, we deeply elaborate how (P)RR affects Wnt3 protein level and the key enzyme that mediates this process. METHODS Immunohistochemistry, western blotting and immunofluorescence were performed to detect protein expression status. A kind of gastrointestinal epithelium-specific ATP6AP2 ((P)RR encoding gene) knock-in mice were generated using Crispr/Cas9 system. RESULTS We found that increased (P)RR expression in primary CRC lesions is positively associated with higher Wnt3 protein level and disease progression. Progressive CRC presents less colocalization of Wnt3 and an E3 ubiquitin ligase NEDD4L in primary lesions than non-progressive CRC. In colon cancer cells, (P)RR dramatically inhibits the NEDD4L-mediated Wnt3 protein ubiquitination. ATP6AP2 knock-in mice show more diminished Wnt3-NEDD4L colocalization in their gut epithelium in comparison to wildtype mice. They also have abnormal gut bacterial flora distribution. Especially, Lachnospiraceae_NK4A136 and Bacteroides genus, which are generally protective against CRC, are suppressed in guts of ATP6AP2 knock-in mice. CONCLUSIONS Collectively, (P)RR promotes CRC progression through inhibiting the NEDD4L-mediated Wnt3 ubiquitination and modulating gut microbiota. Video Abstract.
Collapse
Affiliation(s)
- Juan Wang
- grid.412465.0Department of Medical Oncology (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences of Zhejiang Province), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009 Zhejiang China ,Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, 310009 Zhejiang China ,grid.13402.340000 0004 1759 700XCancer Center of Zhejiang University, Hangzhou, 310058 Zhejiang China
| | - Yuwei Ding
- grid.412465.0Department of Medical Oncology (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences of Zhejiang Province), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009 Zhejiang China ,Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, 310009 Zhejiang China ,grid.13402.340000 0004 1759 700XCancer Center of Zhejiang University, Hangzhou, 310058 Zhejiang China
| | - Dan Li
- grid.412465.0Department of Medical Oncology (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences of Zhejiang Province), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009 Zhejiang China ,Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, 310009 Zhejiang China ,grid.13402.340000 0004 1759 700XCancer Center of Zhejiang University, Hangzhou, 310058 Zhejiang China
| | - Ning Zhu
- grid.412465.0Department of Medical Oncology (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences of Zhejiang Province), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009 Zhejiang China ,Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, 310009 Zhejiang China ,grid.13402.340000 0004 1759 700XCancer Center of Zhejiang University, Hangzhou, 310058 Zhejiang China
| | - Akira Nishiyama
- grid.258331.e0000 0000 8662 309XDepartment of Pharmacology, Faculty of Medicine, Kagawa University, Takamatsu, Kagawa 761-0793 Japan
| | - Ying Yuan
- grid.412465.0Department of Medical Oncology (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education, Key Laboratory of Molecular Biology in Medical Sciences of Zhejiang Province), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009 Zhejiang China ,Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou, 310009 Zhejiang China ,grid.13402.340000 0004 1759 700XCancer Center of Zhejiang University, Hangzhou, 310058 Zhejiang China
| |
Collapse
|
3
|
Niu ZJ, Yao S, Zhang X, Mu JJ, Du MF, Zou T, Chu C, Liao YY, Hu GL, Chen C, Wang D, Ma Q, Yan Y, Jia H, Wang KK, Sun Y, Yan RC, Man ZY, Ren DF, Wang L, Gao WH, Li H, Wu YX, Li CH, Gao K, Zhang J, Yang TL, Wang Y. Associations of genetic variations in NEDD4L with salt sensitivity, blood pressure changes and hypertension incidence in Chinese adults. J Clin Hypertens (Greenwich) 2022; 24:1381-1389. [PMID: 36039789 PMCID: PMC9581093 DOI: 10.1111/jch.14566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/16/2022] [Accepted: 07/21/2022] [Indexed: 11/28/2022]
Abstract
Neural precursor cell expressed developmentally downregulated 4-like (NEDD4L), a member of the E3 ubiquitin-protein ligases, encoded by NEDD4L gene, was found to be involved in in salt sensitivity by regulating sodium reabsorption in salt-sensitive rats. The authors aimed to explore the associations of NEDD4L genetic variants with salt sensitivity, blood pressure (BP) changes and hypertension incidence in Chinese adults. Participants from 124 families in Northern China in the Baoji Salt-Sensitive Study Cohort in 2004, who received the chronic salt intake intervention, including a 7-day low-salt diet (3.0 g/day) and a 7-day high-salt diet (18 g/day), were analyzed. Besides, the development of hypertension over 14 years was evaluated. NEDD4L single nucleotide polymorphism (SNP) rs74408486 was shown to be significantly associated with systolic BP (SBP), diastolic BP (DBP) and mean arterial pressure (MAP) responses to low-salt diet, while SNPs rs292449 and rs2288775 were significantly associated with pulse pressure (PP) response to high-salt diet. In addition, SNP rs4149605, rs73450471, and rs482805 were significantly associated with the longitudinal changes in SBP, DBP, MAP, or PP at 14 years of follow-up. SNP rs292449 was significantly associated with hypertension incidence over the 14-year follow-up. Finally, this gene-based analysis found that NEDD4L was significantly associated with longitudinal BP changes and the incidence of hypertension over the 14-year follow-up. This study indicated that gene polymorphism in NEDD4L serve an important function in salt sensitivity, longitudinal BP change and development of hypertension in the Chinese population.
Collapse
Affiliation(s)
- Ze-Jiaxin Niu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Shi Yao
- National and Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xi Zhang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jian-Jun Mu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Ming-Fei Du
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Ting Zou
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Chao Chu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Yue-Yuan Liao
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Gui-Lin Hu
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Chen Chen
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Dan Wang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Qiong Ma
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Yu Yan
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Hao Jia
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Ke-Ke Wang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Yue Sun
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Rui-Chen Yan
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Zi-Yue Man
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| | - Dan-Feng Ren
- Department of Infectious Diseases, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Lan Wang
- Department of Cardiology, Xi'an International Medical Center Hospital, Xi'an, China
| | - Wei-Hua Gao
- Department of Cardiology, Xi'an No.1 Hospital, Xi'an, China
| | - Hao Li
- Department of Critical Care Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yong-Xing Wu
- Department of Critical Care Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Chun-Hua Li
- Department of Ophthalmology, Xi'an People's Hospital, Xi'an, China
| | - Ke Gao
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jie Zhang
- Department of Cardiology, Xi'an People's Hospital, Xi'an, China
| | - Tie-Lin Yang
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, Biomedical Informatics & Genomics Center, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Yang Wang
- Department of Cardiovascular Medicine, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Molecular Cardiology of Shaanxi Province, Xi'an, China
| |
Collapse
|
4
|
Lu X, Xu H, Xu J, Lu S, You S, Huang X, Zhang N, Zhang L. The regulatory roles of the E3 ubiquitin ligase NEDD4 family in DNA damage response. Front Physiol 2022; 13:968927. [PMID: 36091384 PMCID: PMC9458852 DOI: 10.3389/fphys.2022.968927] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/21/2022] [Indexed: 11/24/2022] Open
Abstract
E3 ubiquitin ligases, an important part of ubiquitin proteasome system, catalyze the covalent binding of ubiquitin to target substrates, which plays a role in protein ubiquitination and regulates different biological process. DNA damage response (DDR) is induced in response to DNA damage to maintain genome integrity and stability, and this process has crucial significance to a series of cell activities such as differentiation, apoptosis, cell cycle. The NEDD4 family, belonging to HECT E3 ubiquitin ligases, is reported as regulators that participate in the DDR process by recognizing different substrates. In this review, we summarize recent researches on NEDD4 family members in the DDR and discuss the roles of NEDD4 family members in the cascade reactions induced by DNA damage. This review may contribute to the further study of pathophysiology for certain diseases and pharmacology for targeted drugs.
Collapse
Affiliation(s)
- Xinxin Lu
- Department of Hematology, the First Affiliated Hospital of China Medical University, Shenyang, LN, China
| | - Haiqi Xu
- Department of Hematology, General Hospital of PLA Northern Theater Command, Shenyang, LN, China
| | - Jiaqi Xu
- Department of Cardiology, the First Affiliated Hospital of China Medical University, Shenyang, LN, China
| | - Saien Lu
- Department of Cardiology, the First Affiliated Hospital of China Medical University, Shenyang, LN, China
| | - Shilong You
- Department of Cardiology, the First Affiliated Hospital of China Medical University, Shenyang, LN, China
| | - Xinyue Huang
- Department of Cardiology, the First Affiliated Hospital of China Medical University, Shenyang, LN, China
| | - Naijin Zhang
- Department of Cardiology, the First Affiliated Hospital of China Medical University, Shenyang, LN, China
| | - Lijun Zhang
- Department of Hematology, the First Affiliated Hospital of China Medical University, Shenyang, LN, China
| |
Collapse
|
5
|
Research progress of Nedd4L in cardiovascular diseases. Cell Death Dis 2022; 8:206. [PMID: 35429991 PMCID: PMC9013375 DOI: 10.1038/s41420-022-01017-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/31/2022] [Accepted: 04/01/2022] [Indexed: 11/25/2022]
Abstract
Post-translational modifications (PTMs) are a covalent processing process of proteins after translation. Proteins are capable of playing their roles only after being modified, so as to maintain the normal physiological function of cells. As a key modification of protein post-translational modification, ubiquitination is an essential element, which forms an enzyme-linked reaction through ubiquitin-activating enzyme, ubiquitin binding enzyme, and ubiquitin ligase, aiming to regulate the expression level and function of cellular proteins. Nedd4 family is the largest group of ubiquitin ligases, including 9 members, such as Nedd4-1, Nedd4L (Nedd4-2), WWP1, WWP2, ITCH, etc. They could bind to substrate proteins through their WW domain and play a dominant role in the ubiquitination process, and then participate in various pathophysiological processes of cardiovascular diseases (such as hypertension, myocardial hypertrophy, heart failure, etc.). At present, the role of Nedd4L in the cardiovascular field is not fully understood. This review aims to summarize the progress and mechanism of Nedd4L in cardiovascular diseases, and provide potential perspective for the clinical treatment or prevention of related cardiovascular diseases by targeting Nedd4L.
Collapse
|
6
|
The Role of NEDD4 E3 Ubiquitin–Protein Ligases in Parkinson’s Disease. Genes (Basel) 2022; 13:genes13030513. [PMID: 35328067 PMCID: PMC8950476 DOI: 10.3390/genes13030513] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 03/03/2022] [Indexed: 01/25/2023] Open
Abstract
Parkinson’s disease (PD) is a debilitating neurodegenerative disease that causes a great clinical burden. However, its exact molecular pathologies are not fully understood. Whilst there are a number of avenues for research into slowing, halting, or reversing PD, one central idea is to enhance the clearance of the proposed aetiological protein, oligomeric α-synuclein. Oligomeric α-synuclein is the main constituent protein in Lewy bodies and neurites and is considered neurotoxic. Multiple E3 ubiquitin-protein ligases, including the NEDD4 (neural precursor cell expressed developmentally downregulated protein 4) family, parkin, SIAH (mammalian homologues of Drosophila seven in absentia), CHIP (carboxy-terminus of Hsc70 interacting protein), and SCFFXBL5 SCF ubiquitin ligase assembled by the S-phase kinase-associated protein (SKP1), cullin-1 (Cul1), a zinc-binding RING finger protein, and the F-box domain/Leucine-rich repeat protein 5-containing protein FBXL5), have been shown to be able to ubiquitinate α-synuclein, influencing its subsequent degradation via the proteasome or lysosome. Here, we explore the link between NEDD4 ligases and PD, which is not only via α-synuclein but further strengthened by several additional substrates and interaction partners. Some members of the NEDD4 family of ligases are thought to crosstalk even with PD-related genes and proteins found to be mutated in familial forms of PD. Mutations in NEDD4 family genes have not been observed in PD patients, most likely because of their essential survival function during development. Following further in vivo studies, it has been thought that NEDD4 ligases may be viable therapeutic targets in PD. NEDD4 family members could clear toxic proteins, enhancing cell survival and slowing disease progression, or might diminish beneficial proteins, reducing cell survival and accelerating disease progression. Here, we review studies to date on the expression and function of NEDD4 ubiquitin ligases in the brain and their possible impact on PD pathology.
Collapse
|
7
|
Gaitanidis A, Kaafarani HMA, Christensen MA, Breen K, Mendoza A, Fagenholz PJ, Velmahos GC, Farhat MR. Association Between NEDD4L Variation and the Genetic Risk of Acute Appendicitis: A Multi-institutional Genome-Wide Association Study. JAMA Surg 2021; 156:917-923. [PMID: 34319380 DOI: 10.1001/jamasurg.2021.3303] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Importance The familial aspect of acute appendicitis (AA) has been proposed, but its hereditary basis remains undetermined. Objective To identify genomic variants associated with AA. Design, Setting, and Participants This genome-wide association study, conducted from June 21, 2019, to February 4, 2020, used a multi-institutional biobank to retrospectively identify patients with AA across 8 single-nucleotide variation (SNV) genotyping batches. The study also examined differential gene expression in appendiceal tissue samples between patients with AA and controls using the GSE9579 data set in the National Institutes of Health's Gene Expression Omnibus repository. Statistical analysis was conducted from October 1, 2019, to February 4, 2020. Main Outcomes and Measures Single-nucleotide variations with a minor allele frequency of 5% or higher were tested for association with AA using a linear mixed model. The significance threshold was set at P = 5 × 10-8. Results A total of 29 706 patients (15 088 women [50.8%]; mean [SD] age at enrollment, 60.1 [17.0] years) were included, 1743 of whom had a history of AA. The genomic inflation factor for the cohort was 1.003. A previously unknown SNV at chromosome 18q was found to be associated with AA (rs9953918: odds ratio, 0.99; 95% CI, 0.98-1.00; P = 4.48 × 10-8). This SNV is located in an intron of the NEDD4L gene. The heritability of appendicitis was estimated at 30.1%. Gene expression data from appendiceal tissue donors identified NEDD4L to be among the most differentially expressed genes (14 of 22 216 genes; β [SE] = -2.71 [0.44]; log fold change = -1.69; adjusted P = .04). Conclusions and Relevance This study identified SNVs within the NEDD4L gene as being associated with AA. Nedd4l is involved in the ubiquitination of intestinal ion channels and decreased Nedd4l activity may be implicated in the pathogenesis of AA. These findings can improve the understanding of the genetic predisposition to and pathogenesis of AA.
Collapse
Affiliation(s)
- Apostolos Gaitanidis
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston
| | - Haytham M A Kaafarani
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston
| | - Mathias A Christensen
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston
| | - Kerry Breen
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston
| | - April Mendoza
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston
| | - Peter J Fagenholz
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston
| | - George C Velmahos
- Division of Trauma, Emergency Surgery and Surgical Critical Care, Massachusetts General Hospital, Boston
| | - Maha R Farhat
- Department of Biomedical Informatics, Harvard Medical School, Boston, Massachusetts.,Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Boston
| |
Collapse
|
8
|
Zhang Y, Qian H, Wu B, You S, Wu S, Lu S, Wang P, Cao L, Zhang N, Sun Y. E3 Ubiquitin ligase NEDD4 family‑regulatory network in cardiovascular disease. Int J Biol Sci 2020; 16:2727-2740. [PMID: 33110392 PMCID: PMC7586430 DOI: 10.7150/ijbs.48437] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 08/06/2020] [Indexed: 12/17/2022] Open
Abstract
Protein ubiquitination represents a critical modification occurring after translation. E3 ligase catalyzes the covalent binding of ubiquitin to the protein substrate, which could be degraded. Ubiquitination as an important protein post-translational modification is closely related to cardiovascular disease. The NEDD4 family, belonging to HECT class of E3 ubiquitin ligases can recognize different substrate proteins, including PTEN, ENaC, Nav1.5, SMAD2, PARP1, Septin4, ALK1, SERCA2a, TGFβR3 and so on, via the WW domain to catalyze ubiquitination, thus participating in multiple cardiovascular-related disease such as hypertension, arrhythmia, myocardial infarction, heart failure, cardiotoxicity, cardiac hypertrophy, myocardial fibrosis, cardiac remodeling, atherosclerosis, pulmonary hypertension and heart valve disease. However, there is currently no review comprehensively clarifying the important role of NEDD4 family proteins in the cardiovascular system. Therefore, the present review summarized recent studies about NEDD4 family members in cardiovascular disease, providing novel insights into the prevention and treatment of cardiovascular disease. In addition, assessing transgenic animals and performing gene silencing would further identify the ubiquitination targets of NEDD4. NEDD4 quantification in clinical samples would also constitute an important method for determining NEDD4 significance in cardiovascular disease.
Collapse
Affiliation(s)
- Ying Zhang
- Department of Cardiology, the First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Hao Qian
- Department of Cardiology, the First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Boquan Wu
- Department of Cardiology, the First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Shilong You
- Department of Cardiology, the First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Shaojun Wu
- Department of Cardiology, the First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Saien Lu
- Department of Cardiology, the First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Pingyuan Wang
- Staff scientist, Center for Molecular Medicine National Heart Lung and Blood Institute, National Institutes of Health, the United States
| | - Liu Cao
- Key Laboratory of Medical Cell Biology, Ministry of Education; Institute of Translational Medicine, China Medical University; Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, Shenyang, Liaoning, China
| | - Naijin Zhang
- Department of Cardiology, the First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Yingxian Sun
- Department of Cardiology, the First Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| |
Collapse
|
9
|
Ishigami T, Kino T, Minegishi S, Araki N, Umemura M, Ushio H, Saigoh S, Sugiyama M. Regulators of Epithelial Sodium Channels in Aldosterone-Sensitive Distal Nephrons (ASDN): Critical Roles of Nedd4L/Nedd4-2 and Salt-Sensitive Hypertension. Int J Mol Sci 2020; 21:ijms21113871. [PMID: 32485919 PMCID: PMC7312533 DOI: 10.3390/ijms21113871] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 05/21/2020] [Accepted: 05/27/2020] [Indexed: 01/12/2023] Open
Abstract
Ubiquitination is a representative, reversible biological process of the post-translational modification of various proteins with multiple catalytic reaction sequences, including ubiquitin itself, in addition to E1 ubiquitin activating enzymes, E2 ubiquitin conjugating enzymes, E3 ubiquitin ligase, deubiquitinating enzymes, and proteasome degradation. The ubiquitin–proteasome system is known to play a pivotal role in various molecular life phenomena, including the cell cycle, protein quality, and cell surface expressions of ion-transporters. As such, the failure of this system can lead to cancer, neurodegenerative diseases, cardiovascular diseases, and hypertension. This review article discusses Nedd4-2/NEDD4L, an E3-ubiquitin ligase involved in salt-sensitive hypertension, drawing from detailed genetic dissection analysis and the development of genetically engineered mice model. Based on our analyses, targeting therapeutic regulations of ubiquitination in the fields of cardio-vascular medicine might be a promising strategy in future. Although the clinical applications of this strategy are limited, compared to those of kinase systems, many compounds with a high pharmacological activity were identified at the basic research level. Therefore, future development could be expected.
Collapse
|
10
|
Tu J, Zhang B, Fang G, Chang W, Zhao Y. Neddylation-mediated Nedd4-2 activation regulates ubiquitination modification of renal NBCe1. Exp Cell Res 2020; 390:111958. [DOI: 10.1016/j.yexcr.2020.111958] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 03/10/2020] [Accepted: 03/11/2020] [Indexed: 12/11/2022]
|
11
|
Yilmaz E, Gul M, Melekoglu R, Inci Coskun E, Sahin N, Gul S, Bastemur AG, Ciplak B. Neural precursor cell-expressed developmentally down-regulated 4-like: a new biomarker in the pathophysiology of endometrial cancer. J Int Med Res 2018; 46:3709-3716. [PMID: 29998764 PMCID: PMC6136009 DOI: 10.1177/0300060518777944] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objectives Endometrial cancer is the most frequent tumor of the female genital tract.
Ubiquitin is a small protein (8.5 kDa) found in all eukaryotic cells, binds
to substrate proteins via a three-phase enzymatic pathway referred to as
ubiquitination and plays an important role in cellular stability. Neural
precursor cell-expressed developmentally down-regulated 4-like (NEDD4L)
functions in the last phase of this enzymatic process. In this study, we
investigated NEDD4L protein expression in endometrial cancer. Methods The study participants were divided into patients with benign endometrial
pathologies (Group 1, n = 23), patients with endometrial hyperplasia (Group
2, n = 21) and patients with endometrial cancer (Group 3, n = 20). NEDD4L
expression was detected by immunohistochemical staining and H scores were
calculated to standardize staining intensity. Statistical analysis was
performed using SPSS 16.0. Results NEDD4L expression levels according to H scores were significantly lower in
patients diagnosed with endometrial cancer compared with those with benign
endometrial pathologies. Conclusion NEDD4L is involved in maintaining cell stability, and reduced NEDD4L
expression as a result of gene mutation may disrupt this balance in favor of
tumorigenesis.
Collapse
Affiliation(s)
- Ercan Yilmaz
- 1 Obstetrics and Gynecology Department, Inonu University Medicine Faculty, Malatya, Turkey
| | - Mehmet Gul
- 2 Histology and Embryology Department, Inonu University Medicine Faculty, Malatya, Turkey
| | - Rauf Melekoglu
- 1 Obstetrics and Gynecology Department, Inonu University Medicine Faculty, Malatya, Turkey
| | - Ebru Inci Coskun
- 1 Obstetrics and Gynecology Department, Inonu University Medicine Faculty, Malatya, Turkey
| | - Nurhan Sahin
- 3 Pathology Department, Bezmialem Foundation University Medicine Faculty, Istanbul, Turkey
| | - Semir Gul
- 2 Histology and Embryology Department, Inonu University Medicine Faculty, Malatya, Turkey
| | - Ayse Gulcin Bastemur
- 1 Obstetrics and Gynecology Department, Inonu University Medicine Faculty, Malatya, Turkey
| | | |
Collapse
|
12
|
A Genome-Wide Association Study and Complex Network Identify Four Core Hub Genes in Bipolar Disorder. Int J Mol Sci 2017; 18:ijms18122763. [PMID: 29257106 PMCID: PMC5751362 DOI: 10.3390/ijms18122763] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 11/29/2017] [Accepted: 12/14/2017] [Indexed: 11/25/2022] Open
Abstract
Bipolar disorder is a common and severe mental illness with unsolved pathophysiology. A genome-wide association study (GWAS) has been used to find a number of risk genes, but it is difficult for a GWAS to find genes indirectly associated with a disease. To find core hub genes, we introduce a network analysis after the GWAS was conducted. Six thousand four hundred fifty eight single nucleotide polymorphisms (SNPs) with p < 0.01 were sifted out from Wellcome Trust Case Control Consortium (WTCCC) dataset and mapped to 2045 genes, which are then compared with the protein–protein network. One hundred twelve genes with a degree >17 were chosen as hub genes from which five significant modules and four core hub genes (FBXL13, WDFY2, bFGF, and MTHFD1L) were found. These core hub genes have not been reported to be directly associated with BD but may function by interacting with genes directly related to BD. Our method engenders new thoughts on finding genes indirectly associated with, but important for, complex diseases.
Collapse
|
13
|
Downregulation of Nedd4L predicts poor prognosis, promotes tumor growth and inhibits MAPK/ERK signal pathway in hepatocellular carcinoma. Biochem Biophys Res Commun 2017; 495:1136-1143. [PMID: 29175326 DOI: 10.1016/j.bbrc.2017.11.139] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 11/20/2017] [Indexed: 01/26/2023]
Abstract
Accumulating evidence indicates that the neural precursor cell-expressed, developmentally downregulated 4-like (Nedd4L) related with some tumor progression pathways and was found abnormally expressed in several kinds of solid cancers. However, the role and mechanism of Nedd4L in HCC remain unknown. This study was to assess the role of Nedd4L in HCC tumorigenesis and prognosis. The real-time quantitative RT-PCR and immunohistochemistry results revealed that Nedd4L was downregulated in HCC tissues compared to corresponding peri-noncancerous tissue, and HCC patients with low expression of Nedd4L exhibited poor prognosis assessed by Kaplan-Meier and Cox regression analysis in 78 HCC patients. Furthermore, knockdown of Nedd4L could significantly promote proliferation of HCC cells by CCK-8 and colony formation assays in vitro; whereas ectopic expression of Nedd4L resulted in attenuating proliferation in vitro and tumor growth in vivc determined by nude mice xenografts model. Mechanically, Nedd4L could phosphorylate ERK1/2 and regulate genes related with apoptosis. Collectively, Nedd4L plays a tumor suppressive role in HCC, possibly through triggering MAPK/ERK-mediated apoptosis, and Nedd4L downregulation may be a potential prognostic biomarker as well as a therapeutic target for HCC.
Collapse
|
14
|
Zhu JY, Heidersbach A, Kathiriya IS, Garay BI, Ivey KN, Srivastava D, Han Z, King IN. The E3 ubiquitin ligase Nedd4/Nedd4L is directly regulated by microRNA 1. Development 2017; 144:866-875. [PMID: 28246214 DOI: 10.1242/dev.140368] [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: 06/01/2016] [Accepted: 01/10/2017] [Indexed: 12/20/2022]
Abstract
miR-1 is a small noncoding RNA molecule that modulates gene expression in heart and skeletal muscle. Loss of Drosophila miR-1 produces defects in somatic muscle and embryonic heart development, which have been partly attributed to miR-1 directly targeting Delta to decrease Notch signaling. Here, we show that overexpression of miR-1 in the fly wing can paradoxically increase Notch activity independently of its effects on Delta. Analyses of potential miR-1 targets revealed that miR-1 directly regulates the 3'UTR of the E3 ubiquitin ligase Nedd4 Analysis of embryonic and adult fly heart revealed that the Nedd4 protein regulates heart development in Drosophila Larval fly hearts overexpressing miR-1 have profound defects in actin filament organization that are partially rescued by concurrent overexpression of Nedd4. These results indicate that miR-1 and Nedd4 act together in the formation and actin-dependent patterning of the fly heart. Importantly, we have found that the biochemical and genetic relationship between miR-1 and the mammalian ortholog Nedd4-like (Nedd4l) is evolutionarily conserved in the mammalian heart, potentially indicating a role for Nedd4L in mammalian postnatal maturation. Thus, miR-1-mediated regulation of Nedd4/Nedd4L expression may serve to broadly modulate the trafficking or degradation of Nedd4/Nedd4L substrates in the heart.
Collapse
Affiliation(s)
- Jun-Yi Zhu
- Children's National Medical Center, Washington, DC 20010, USA
| | - Amy Heidersbach
- Gladstone Institute of Cardiovascular Disease, San Francisco, CA 94158, USA.,Department of Pediatrics, University of California, San Francisco, CA 94143, USA
| | - Irfan S Kathiriya
- Gladstone Institute of Cardiovascular Disease, San Francisco, CA 94158, USA.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Bayardo I Garay
- Gladstone Institute of Cardiovascular Disease, San Francisco, CA 94158, USA.,Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA 94143, USA
| | - Kathryn N Ivey
- Gladstone Institute of Cardiovascular Disease, San Francisco, CA 94158, USA.,Department of Pediatrics, University of California, San Francisco, CA 94143, USA
| | - Deepak Srivastava
- Gladstone Institute of Cardiovascular Disease, San Francisco, CA 94158, USA.,Department of Pediatrics, University of California, San Francisco, CA 94143, USA
| | - Zhe Han
- Children's National Medical Center, Washington, DC 20010, USA
| | - Isabelle N King
- Gladstone Institute of Cardiovascular Disease, San Francisco, CA 94158, USA .,Department of Pediatrics, University of California, San Francisco, CA 94143, USA
| |
Collapse
|
15
|
Regulation of amino acid transporter trafficking by mTORC1 in primary human trophoblast cells is mediated by the ubiquitin ligase Nedd4-2. Clin Sci (Lond) 2015; 130:499-512. [PMID: 26608079 DOI: 10.1042/cs20150554] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 11/25/2015] [Indexed: 12/11/2022]
Abstract
Changes in placental amino acid transfer directly contribute to altered fetal growth, which increases the risk for perinatal complications and predisposes for the development of obesity, diabetes and cardiovascular disease later in life. Placental amino acid transfer is critically dependent on the expression of specific transporters in the plasma membrane of the trophoblast, the transporting epithelium of the human placenta. However, the molecular mechanisms regulating this process are largely unknown. Nedd4-2 is an ubiquitin ligase that catalyses the ubiquitination of proteins, resulting in proteasomal degradation. We hypothesized that inhibition of mechanistic target of rapamycin complex 1 (mTORC1) decreases amino acid uptake in primary human trophoblast (PHT) cells by activation of Nedd4-2, which increases transporter ubiquitination resulting in decreased transporter expression in the plasma membrane. mTORC 1 inhibition increased the expression of Nedd4-2, promoted ubiquitination and decreased the plasma membrane expression of SNAT2 (an isoform of the System A amino acid transporter) and LAT1 (a System L amino acid transporter isoform), resulting in decreased cellular amino acid uptake. Nedd4-2 silencing markedly increased the trafficking of SNAT2 and LAT1 to the plasma membrane, which stimulated cellular amino acid uptake. mTORC1 inhibition by silencing of raptor failed to decrease amino acid transport following Nedd4-2 silencing. In conclusion, we have identified a novel link between mTORC1 signalling and ubiquitination, a common posttranslational modification. Because placental mTORC1 is inhibited in fetal growth restriction and activated in fetal overgrowth, we propose that regulation of placental amino acid transporter ubiquitination by mTORC1 and Nedd4-2 constitutes a molecular mechanisms underlying abnormal fetal growth.
Collapse
|
16
|
Yang Q, Zhao J, Cui M, Gi S, Wang W, Han X. Nedd4L expression is decreased in ovarian epithelial cancer tissues compared to ovarian non-cancer tissue. J Obstet Gynaecol Res 2015; 41:1959-64. [PMID: 26554540 DOI: 10.1111/jog.12808] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 06/14/2015] [Indexed: 11/30/2022]
Abstract
AIM Recent studies have demonstrated that the neural precursor cell expressed, developmentally downregulated 4-like (Nedd4L) gene plays a role in the progression of various cancers. However, reports describing Nedd4L expression in ovarian cancer tissues are limited. MATERIAL AND METHODS A cohort (n = 117) of archival formalin-fixed, paraffin embedded resected normal ovarian epithelial tissues (n = 10), benign ovarian epithelial tumor tissues (n = 10), serous borderline ovarian epithelial tumor tissues (n = 14), mucous borderline ovarian epithelial tumor tissues (n = 11), and invasive ovarian epithelial cancer tissues (n = 72) were assessed for Nedd4L protein expression using immunohistochemistry. RESULTS Nedd4L protein expression was significantly decreased in invasive ovarian epithelial cancer tissues compared to non-cancer tissues (P < 0.05). Decreased Nedd4L protein expression correlated with clinical stage, pathological grade, lymph node metastasis and survival (P < 0.05). CONCLUSION Nedd4L protein expression may be an independent prognostic marker of ovarian cancer development.
Collapse
Affiliation(s)
- Qiuyun Yang
- Department of Gynaecology and Obstetrics, The Second Hospital of Jilin University, Changchun, Jilin Province, China.,Department of Gynaecology and Obstetrics, The Hospital of Binzhou Medical University Campus, Yantai, Shandong Province, China
| | - Jinghe Zhao
- Department of Neurosurgery, The Hospital of Binzhou Medical University Campus, Yantai, Shandong Province, China
| | - Manhua Cui
- Department of Gynaecology and Obstetrics, The Second Hospital of Jilin University, Changchun, Jilin Province, China
| | - Shuting Gi
- Department of Inspection, Harbin Medical University Daqing Campus, Daqing, Heilongjiang Province, China
| | - Wei Wang
- Department of Gynaecology and Obstetrics, The Hospital of Binzhou Medical University Campus, Yantai, Shandong Province, China
| | - Xiaole Han
- Department of College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang Province, China
| |
Collapse
|
17
|
Mercenne G, Alam SL, Arii J, Lalonde MS, Sundquist WI. Angiomotin functions in HIV-1 assembly and budding. eLife 2015; 4. [PMID: 25633977 PMCID: PMC4337731 DOI: 10.7554/elife.03778] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 01/28/2015] [Indexed: 11/24/2022] Open
Abstract
Many retroviral Gag proteins contain PPXY late assembly domain motifs that recruit proteins of the NEDD4 E3 ubiquitin ligase family to facilitate virus release. Overexpression of NEDD4L can also stimulate HIV-1 release but in this case the Gag protein lacks a PPXY motif, suggesting that NEDD4L may function through an adaptor protein. Here, we demonstrate that the cellular protein Angiomotin (AMOT) can bind both NEDD4L and HIV-1 Gag. HIV-1 release and infectivity are stimulated by AMOT overexpression and inhibited by AMOT depletion, whereas AMOT mutants that cannot bind NEDD4L cannot function in virus release. Electron microscopic analyses revealed that in the absence of AMOT assembling Gag molecules fail to form a fully spherical enveloped particle. Our experiments indicate that AMOT and other motin family members function together with NEDD4L to help complete immature virion assembly prior to ESCRT-mediated virus budding. DOI:http://dx.doi.org/10.7554/eLife.03778.001 To multiply and spread infections, viruses must enter and exit cells. Once inside a cell, many viruses conscript the cell's machinery to produce new viral particles and release them into the surroundings. Some viruses—like HIV-1—exit the cell in a way that leads to them being wrapped (or ‘enveloped’) in membrane from the host cell. A virus protein called Gag is required for the release of HIV-1 and other enveloped viruses. In some cases, Gag proteins bind directly to members of the NEDD4 protein family to enable the viruses to be released. However, the Gag protein from HIV-1 does not appear to be able to interact directly with NEDD4 proteins, so it was not clear how Gag works in this case. Mercenne et al. studied how HIV-1 is released from human cells grown in the laboratory. The experiments show that members of a human protein family called the Angiomotins bind to both Gag and NEDD4L (a member of the NEDD4 family) and are required for the efficient release of viruses. Using a technique called electron microscopy, Mercenne et al. observed that when Angiomotins are present, Gag proteins assemble in spheres at the cell membrane and viruses are able to exit the cell. However, when Angiomotins are depleted or absent, incomplete spheres of Gag proteins accumulate on the inner membrane surface and viruses are not released. These findings show that Angiomotins act as a link between Gag and NEDD4L to promote the release of HIV-1 from human cells. The next step will be to learn precisely how this works. There are indications that the Angiomotins may also be involved in the release of other enveloped viruses, so the findings may be useful for the development of treatments for a variety of viral infections. DOI:http://dx.doi.org/10.7554/eLife.03778.002
Collapse
Affiliation(s)
- Gaelle Mercenne
- Department of Biochemistry, University of Utah, Salt Lake City, United States
| | - Steven L Alam
- Department of Biochemistry, University of Utah, Salt Lake City, United States
| | - Jun Arii
- Department of Biochemistry, University of Utah, Salt Lake City, United States
| | - Matthew S Lalonde
- Department of Biochemistry, University of Utah, Salt Lake City, United States
| | - Wesley I Sundquist
- Department of Biochemistry, University of Utah, Salt Lake City, United States
| |
Collapse
|
18
|
Goel P, Manning JA, Kumar S. NEDD4-2 (NEDD4L): the ubiquitin ligase for multiple membrane proteins. Gene 2014; 557:1-10. [PMID: 25433090 DOI: 10.1016/j.gene.2014.11.051] [Citation(s) in RCA: 122] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 11/14/2014] [Accepted: 11/21/2014] [Indexed: 12/20/2022]
Abstract
NEDD4-2 (also known as NEDD4L, neural precursor cell expressed developmentally down-regulated 4-like) is a ubiquitin protein ligase of the Nedd4 family which is known to bind and regulate a number of membrane proteins to aid in their internalization and turnover. Several of the NEDD4-2 substrates include ion channels, such as the epithelial and voltage-gated sodium channels. Given the critical function of NEDD4-2 in regulating membrane proteins, this ligase is essential for the maintenance of cellular homeostasis. In this article we review the biology and function of this important ubiquitin-protein ligase and discuss its pathophysiological significance.
Collapse
Affiliation(s)
- Pranay Goel
- Centre for Cancer Biology, University of South Australia, Adelaide, SA 5001, Australia; Department of Medicine, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Jantina A Manning
- Centre for Cancer Biology, University of South Australia, Adelaide, SA 5001, Australia
| | - Sharad Kumar
- Centre for Cancer Biology, University of South Australia, Adelaide, SA 5001, Australia; Department of Medicine, The University of Adelaide, Adelaide, SA 5005, Australia.
| |
Collapse
|
19
|
Lu N, Chen J, Yuan Y, Cong X, Yang Y, Meng L, Sun K, Hui R, Zheng Y. The C-1021T polymorphism of dopamine β-hydroxylase is not associated with orthostatic hypotension in a Chinese population. J Hum Hypertens 2014; 29:173-8. [PMID: 24990418 DOI: 10.1038/jhh.2014.54] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 04/17/2014] [Accepted: 05/27/2014] [Indexed: 11/09/2022]
Abstract
To explore the association between the dopamine β-hydroxylase (DBH) gene C-1021T polymorphism and the occurrence of orthostatic hypotension (OH) in Chinese patients, the DBH C-1021T polymorphism was genotyped in 317 patients with OH and 664 age- and sex-matched controls with orthostatic normotension. All subjects underwent an upright posture study for the measurement of orthostatic blood pressure. OH was defined as a drop in blood pressure of 20/10 mm Hg or more within 3 min of assuming the upright posture. The allele frequency of the DBH C-1021T polymorphism in the orthostatic hypotensive group was similar to the orthostatic normotensive group (17.4 versus 14.9%, P>0.05). No statistical significant association was found between the distribution of the C-1021T genotypes and the risk of OH in both the orthostatic hypotensive and orthostatic normotensive groups even after adjustment for demographic parameters. Among the three different genotypes, blood pressure levels did not significantly differ in the general population in this study. The changes in orthostatic systolic or diastolic blood pressures among the different genotype groups were not detected (all P>0.05). The C-1021T polymorphism of the DBH was not associated with orthostatic hypotensive risk in a Chinese population.
Collapse
Affiliation(s)
- N Lu
- The Pediatric Cardiology, The First Hospital of Jilin University, Changchun, China
| | - J Chen
- Hypertension Division, The Sino-German Laboratory of Molecular Medicine, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Yuan
- The Anesthesiology Department, The First Hospital of Jilin University, Changchun, China
| | - X Cong
- The Cardiovascular Center, The First Hospital of Jilin University, Changchun, China
| | - Y Yang
- The Cardiovascular Center, The First Hospital of Jilin University, Changchun, China
| | - L Meng
- The Cardiovascular Center, The First Hospital of Jilin University, Changchun, China
| | - K Sun
- Hypertension Division, The Sino-German Laboratory of Molecular Medicine, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - R Hui
- Hypertension Division, The Sino-German Laboratory of Molecular Medicine, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Zheng
- The Cardiovascular Center, The First Hospital of Jilin University, Changchun, China
| |
Collapse
|
20
|
Abstract
Ion channel proteins are regulated by different types of posttranslational modifications. The focus of this review is the regulation of voltage-gated sodium channels (Navs) upon their ubiquitylation. The amiloride-sensitive epithelial sodium channel (ENaC) was the first ion channel shown to be regulated upon ubiquitylation. This modification results from the binding of ubiquitin ligase from the Nedd4 family to a protein-protein interaction domain, known as the PY motif, in the ENaC subunits. Many of the Navs have similar PY motifs, which have been demonstrated to be targets of Nedd4-dependent ubiquitylation, tagging them for internalization from the cell surface. The role of Nedd4-dependent regulation of the Nav membrane density in physiology and disease remains poorly understood. Two recent studies have provided evidence that Nedd4-2 is downregulated in dorsal root ganglion (DRG) neurons in both rat and mouse models of nerve injury-induced neuropathic pain. Using two different mouse models, one with a specific knockout of Nedd4-2 in sensory neurons and another where Nedd4-2 was overexpressed with the use of viral vectors, it was demonstrated that the neuropathy-linked neuronal hyperexcitability was the result of Nav1.7 and Nav1.8 overexpression due to Nedd4-2 downregulation. These studies provided the first in vivo evidence of the role of Nedd4-2-dependent regulation of Nav channels in a disease state. This ubiquitylation pathway may be involved in the development of symptoms and diseases linked to Nav-dependent hyperexcitability, such as pain, cardiac arrhythmias, epilepsy, migraine, and myotonias.
Collapse
Affiliation(s)
- Cédric J Laedermann
- Department of Clinical Research, University of Bern, Murtenstrasse, 35, 3010, Bern, Switzerland,
| | | | | |
Collapse
|
21
|
Liang H, Wu X, Chen X, Wang Y, Li Y, Pan B, Li M, Liu H. Gender difference in association of NEDD4L gene variants among southern Han Chinese with essential hypertension – a population-based case–control study. Clin Exp Hypertens 2013; 36:309-14. [DOI: 10.3109/10641963.2013.827693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
22
|
Kovacevic Z, Chikhani S, Lui GYL, Sivagurunathan S, Richardson DR. The iron-regulated metastasis suppressor NDRG1 targets NEDD4L, PTEN, and SMAD4 and inhibits the PI3K and Ras signaling pathways. Antioxid Redox Signal 2013; 18:874-87. [PMID: 22462691 DOI: 10.1089/ars.2011.4273] [Citation(s) in RCA: 140] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
AIMS The metastasis suppressor gene, N-myc downstream regulated gene-1 (NDRG1), is negatively correlated with tumor progression in multiple neoplasms, including pancreatic cancer. Moreover, NDRG1 is an iron-regulated gene that is markedly upregulated by cellular iron-depletion using novel antitumor agents such as the chelator, di-2-pyridylketone 4,4-dimethyl-3-thiosemicarbazone (Dp44mT), in pancreatic cancer cells. However, the exact function(s) of NDRG1 remain to be established and are important to elucidate. RESULTS In the current study, using gene-array analysis along with NDRG1 overexpression and silencing, we identified the molecular targets of NDRG1 in three pancreatic cancer cell lines. We demonstrate that NDRG1 upregulates neural precursor cell expressed developmentally downregulated 4-like (NEDD4L) and GLI-similar-3 (GLIS3). Further studies examining the downstream effects of NEDD4L led to the discovery that NDRG1 affects the transforming growth factor-β (TGF-β) pathway, leading to the upregulation of two key tumor suppressor proteins, namely phosphatase and tensin homolog deleted on chromosome 10 (PTEN) and mothers against decapentaplegic homolog-4 (SMAD4). Moreover, NDRG1 inhibited the phosphatidylinositol 3-kinase (PI3K) and Ras oncogenic pathways. INNOVATION This study provides significant insights into the mechanisms underlying the antitumor activity of NDRG1. For the first time, a role for NDRG1 is established in regulating the key signaling pathways involved in oncogenesis (TGF-β, PI3K, and Ras pathways). CONCLUSION The identified target genes of NDRG1 and their effect on the TGF-β signaling pathway reveal its molecular function in pancreatic cancer and a novel therapeutic avenue.
Collapse
Affiliation(s)
- Zaklina Kovacevic
- Department of Pathology, University of Sydney, Sydney, New South Wales, Australia
| | | | | | | | | |
Collapse
|
23
|
Koeppen K, Chapline C, Sato JD, Stanton BA. Nedd4-2 does not regulate wt-CFTR in human airway epithelial cells. Am J Physiol Lung Cell Mol Physiol 2012; 303:L720-7. [PMID: 22904170 DOI: 10.1152/ajplung.00409.2011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The cystic fibrosis transmembrane conductance regulator (CFTR), a Cl(-) channel in airway epithelial cells, plays an important role in maintaining the volume of the airway surface liquid and therefore mucociliary clearance of respiratory pathogens. A recent study has shown that the E3 ubiquitin ligase Neural precursor cells expressed developmentally downregulated (Nedd4-2) ubiquitinates ΔF508-CFTR in pancreatic epithelial cells and that siRNA-mediated silencing of Nedd4-2 increases plasma membrane ΔF508-CFTR. Because the role of Nedd4-2 in regulating wild-type (wt)-CFTR in airway epithelial cells is unknown, studies were conducted to test the hypothesis that Nedd4-2 also ubiquitinates wt-CFTR and regulates its plasma membrane abundance. We found that Nedd4-2 did not affect wt-CFTR Cl(-) currents in Xenopus oocytes. Likewise, overexpression of Nedd4-2 in human airway epithelial cells did not alter the amount of ubiquitinated wt-CFTR. siRNA knockdown of Nedd4-2 in human airway epithelial cells had no effect on ubiquitination or apical plasma membrane abundance of wt-CFTR. Thus Nedd4-2 does not ubiquitinate and thereby regulate wt-CFTR in human airway epithelial cells.
Collapse
Affiliation(s)
- Katja Koeppen
- Department of Microbiology and Immunology, The Geisel School of Medicine at Dartmouth, 604 Remsen, Hanover, NH 03755, USA.
| | | | | | | |
Collapse
|
24
|
Fan XH, Wang H, Gao LG, Sun K, Zhou XL, Hui RT. The association of an adenine insertion variant in the 5'UTR of the endothelin-1 gene with hypertension and orthostatic hypotension. Arch Med Sci 2012; 8:219-26. [PMID: 22661993 PMCID: PMC3361033 DOI: 10.5114/aoms.2012.28548] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 11/14/2011] [Accepted: 01/07/2012] [Indexed: 01/11/2023] Open
Abstract
INTRODUCTION An adenine insertion polymorphism in the 5' untranslated region of the endothelin-1 gene is functional and increases the expression of endothelin mRNA and protein in the insertion homozygote. In the present study we hypothesized that this functional polymorphism might be associated with hypertension and/or orthostatic hypotension. MATERIAL AND METHODS The adenine insertion polymorphism was genotyped in 381 untreated hypertensive patients and 298 normotensive subjects, all of whom underwent an upright posture study for orthostatic blood pressure measurements. Orthostatic hypotension was defined as a drop in blood pressure of 20/10 mm Hg or more within 3 min of assuming the upright posture. RESULTS The allele frequency of the adenine insertion was similar in hypertensive and normotensive subjects (15.2% vs. 15.3%, p > 0.05). After adjustment for age, sex and body mass index, blood pressure levels did not differ significantly among the genotypes in both hypertensives and normotensives. No associations were found between the distribution of the adenine insertion genotypes and the risk of orthostatic hypotension in both hypertensive patients and normotensive subjects even after adjustment for demographic parameters and supine systolic or diastolic blood pressure. Neither hypertensive nor normotensive subjects showed significant differences in orthostatic systolic or diastolic blood pressure changes among the genotype groups (all p > 0.05). CONCLUSIONS We concluded that the functional adenine insertion polymorphism in the endothelin-1 gene is not associated with either hypertension or orthostatic hypotension risk in Chinese.
Collapse
Affiliation(s)
- Xiao-han Fan
- Department of Cardiology, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hu Wang
- Sino-German Laboratory for Molecular Medicine and Key Laboratory for Clinical Cardiovascular Genetics, Ministry of Education, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ling-gen Gao
- Department of Cardiology, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kai Sun
- Sino-German Laboratory for Molecular Medicine and Key Laboratory for Clinical Cardiovascular Genetics, Ministry of Education, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiang-liang Zhou
- Department of Cardiology, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ru-tai Hui
- Department of Cardiology, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Sino-German Laboratory for Molecular Medicine and Key Laboratory for Clinical Cardiovascular Genetics, Ministry of Education, Cardiovascular Institute and FuWai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
25
|
Decreased expression of Nedd4L correlates with poor prognosis in gastric cancer patient. Med Oncol 2011; 29:1733-8. [PMID: 21909941 DOI: 10.1007/s12032-011-0061-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Accepted: 08/29/2011] [Indexed: 01/26/2023]
Abstract
The neural precursor cell expressed, developmentally down-regulated 4-like (Nedd4L) gene encodes an ubiquitin ligase that targets the epithelial sodium channel for degradation. Recent studies have demonstrated that Nedd4L plays a role in the progression of various cancers. However, the clinical implications of Nedd4L expression status in gastric cancer have remained unclear. We examined the Nedd4L expression in 82 gastric cancer patients by immunohistochemistry. The correlation between Nedd4L expression and clinicopathological factors, including prognosis, was evaluated. Cancerous Nedd4L expression was detectable in 36 of the 82 tumors (43.9%). Tumors with negative Nedd4L expression had greater extent of lymph node metastasis, lymphatic invasion, and venous invasion, and were at a worse stage than the tumors with positive Nedd4L expression. Additionally, the patients with negative Nedd4L expression had poor clinical outcomes. Furthermore, multivariate analysis indicated that Nedd4L expression was an independent prognostic factor for gastric cancer patients. Our results suggest for the first time that negative Nedd4L expression is strongly related to the invasion and metastasis of gastric cancer. Therefore, Nedd4L expression can be used as an independent prognostic marker of gastric cancer.
Collapse
|
26
|
Rao L, Kanakavalli M, Padmalatha V, Nallari P, Singh L. Paternally derived translocation t(8;18)(q22.1;q22)pat associated in a patient with developmental delay: Case report and review. J Pediatr Neurosci 2011; 5:64-7. [PMID: 21042514 PMCID: PMC2964802 DOI: 10.4103/1817-1745.66686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The common cause of mental impairment and the wide range of physical abnormalities is balanced chromosome rearrangement. As such, it is difficult to interpret, posing as a diagnostic challenge in human development. We present a unique familial case report with the paternally inherited autosomal-balanced reciprocal translocation involving chromosomal regions 8q and 18q. The etiology of the translocation, i.e. 46,XX,t(8;18)(q22.1;q22) was detected by conventional high-resolution Giemsa–Trypsin–Giemsa-banding and fluorescence in situ hybridization techniques. The father was found to be the carrier of the chromosome defect and also the same was observed in the first female child referred with a history of delayed milestone development. However, the second female child showed normal 46, XX karyotype. This is the first report of reciprocal translocation involving 8q and 18q associated with the delayed milestone development. The reason likely may be due to the rearrangement of genetic material at these breakpoints having a crucial relationship and thus manifesting developmental delay in the progeny. Accordingly, this paper also shows genetic counseling discussion for the cause.
Collapse
Affiliation(s)
- Lakshmi Rao
- Centre for Cellular and Molecular Biology, Uppal Road, Hyderabad, India
| | | | | | | | | |
Collapse
|
27
|
Saviouk V, Hottenga JJ, Slagboom EP, Distel MA, de Geus EJC, Willemsen G, Boomsma DI. ADHD in Dutch adults: heritability and linkage study. Am J Med Genet B Neuropsychiatr Genet 2011; 156B:352-62. [PMID: 21294247 DOI: 10.1002/ajmg.b.31170] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Accepted: 12/23/2010] [Indexed: 01/04/2023]
Abstract
Attention deficit/hyperactivity disorder (ADHD) is a neurodevelopmental phenotype that persists into adulthood. This study investigated the heritability of inattentive and hyperactive symptoms and of total ADHD symptomatology load (ADHD index) in adults and performed linkage scans for these dimensions. Data on sibling pairs and their family members from the Netherlands Twin Register with genotype and phenotype data for inattention, hyperactivity and ADHD index (∼750 sib-pairs) were analyzed. Phenotypes were assessed with the short self-report form of the Conners' Adult ADHD Rating Scales (CAARS). Heritabilities were estimated in SOLAR under polygenic models. Genome-wide linkage scans were performed using variance components (VC) in MERLIN and MINX and model-based linkage analysis was carried out in MENDEL with empirical evaluation of the results via simulations. Heritability estimates for inattention, hyperactivity and ADHD index were 35%, 23%, and 31%, respectively. Chromosomes 18q21.31-18q21.32 (VC LOD = 4.58, p(emp) = 0.0026) and 2p25.1 (LOD = 3.58, p(emp) = 0.0372) provided significant evidence for linkage for inattention and the ADHD index, respectively. The QTL on chromosome 2p25.1 also showed suggestive linkage for hyperactivity. Two additional suggestive QTLs for hyperactivity and the ADHD index shared the same location on chromosome 3p24.3-3p24.1. Finally, a suggestive QTL on 8p23.3-8p23.2 for hyperactivity was also found. Heritability of inattention, hyperactivity and total ADHD symptoms is lower in adults than in children. Chromosomes 18q and 2p are likely to harbor genes that influence several aspects of adult ADHD.
Collapse
Affiliation(s)
- Viatcheslav Saviouk
- Department of Biological Psychology, VU University Amsterdam, The Netherlands.
| | | | | | | | | | | | | |
Collapse
|
28
|
Wang J, Peng Q, Lin Q, Childress C, Carey D, Yang W. Calcium activates Nedd4 E3 ubiquitin ligases by releasing the C2 domain-mediated auto-inhibition. J Biol Chem 2010; 285:12279-88. [PMID: 20172859 DOI: 10.1074/jbc.m109.086405] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Nedd4 E3 ligases are members of the HECT E3 ubiquitin ligase family and regulate ubiquitination-mediated protein degradation. In this report, we demonstrate that calcium releases the C2 domain-mediated auto-inhibition in both Nedd4-1 and Nedd4-2. Calcium disrupts binding of the C2 domain to the HECT domain. Consistent with this, calcium activates the E3 ubiquitin ligase activity of Nedd4. Elevation of intracellular calcium by ionomycin treatment, or activation of acetylcholine receptor or epidermal growth factor receptor by carbachol or epidermal growth factor stimulation induced activation of endogenous Nedd4 in vivo evaluated by assays of either Nedd4 E3 ligase activity or ubiquitination of Nedd4 substrate ENaC-beta. The activation effect of calcium on Nedd4 E3 ligase activity was dramatically enhanced by a membrane-rich fraction, suggesting that calcium-mediated membrane translocation through the C2 domain might be an activation mechanism of Nedd4 in vivo. Our studies have revealed an activation mechanism of Nedd4 E3 ubiquitin ligases and established a connection of intracellular calcium signaling to regulation of protein ubiquitination.
Collapse
Affiliation(s)
- Jian Wang
- Weis Center for Research, Geisinger Clinic, Danville, Pennsylvania 17822, PA, USA
| | | | | | | | | | | |
Collapse
|
29
|
HECT E3 ubiquitin ligase Nedd4-1 ubiquitinates ACK and regulates epidermal growth factor (EGF)-induced degradation of EGF receptor and ACK. Mol Cell Biol 2010; 30:1541-54. [PMID: 20086093 DOI: 10.1128/mcb.00013-10] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
ACK (activated Cdc42-associated tyrosine kinase) (also Tnk2) is an ubiquitin-binding protein and plays an important role in ligand-induced and ubiquitination-mediated degradation of epidermal growth factor receptor (EGFR). Here we report that ACK is ubiquitinated by HECT E3 ubiquitin ligase Nedd4-1 and degraded along with EGFR in response to EGF stimulation. ACK interacts with Nedd4-1 through a conserved PPXY WW-binding motif. The WW3 domain in Nedd4-1 is critical for binding to ACK. Although ACK binds to both Nedd4-1 and Nedd4-2 (also Nedd4L), Nedd4-1 is the E3 ubiquitin ligase for ubiquitination of ACK in cells. Interestingly, deletion of the sterile alpha motif (SAM) domain at the N terminus dramatically reduced the ubiquitination of ACK by Nedd4-1, while deletion of the Uba domain dramatically enhanced the ubiquitination. Use of proteasomal and lysosomal inhibitors demonstrated that EGF-induced ACK degradation is processed by lysosomes, not proteasomes. RNA interference (RNAi) knockdown of Nedd4-1, not Nedd4-2, inhibited degradation of both EGFR and ACK, and overexpression of ACK mutants that are deficient in either binding to or ubiquitination by Nedd4-1 blocked EGF-induced degradation of EGFR. Our findings suggest an essential role of Nedd4-1 in regulation of EGFR degradation through interaction with and ubiquitination of ACK.
Collapse
|
30
|
Lee EJ, Hyun S, Chun J, Shin SH, Kang SS. Ubiquitylation of Fe65 adaptor protein by neuronal precursor cell expressed developmentally down regulated 4-2 (Nedd4-2) via the WW domain interaction with Fe65. Exp Mol Med 2009; 41:555-68. [PMID: 19381069 DOI: 10.3858/emm.2009.41.8.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Fe65 has been characterized as an adaptor protein, originally identified as an expressed sequence tag (EST) corresponding to an mRNA expressed at high levels in the rat brain. It contains one WW domain and two phosphotyrosine interaction/phosphotyrosine binding domains (PID1/PID2). As the neuronal precursor cell expressed developmentally down regulated 4-2 (Nedd4-2) has a putative WW domain binding motif ((72)PPLP(75)) in the N-terminal domain, we hypothesized that Fe65 associates with Nedd4-2 through a WW domain interaction, which has the characteristics of E3 ubiquitin-protein ligase. In this paper, we present evidence for the interaction between Fe65 WW domain and Nedd4-2 through its specific motif, using a pull down approach and co-immunoprecipitation. Additionally, the co-localization of Fe65 and Nedd4-2 were observed via confocal microscopy. Co-localization of Fe65 and Nedd4-2 was disrupted by either the mutation of Fe65 WW domain or its putative binding motif of Nedd4-2. When the ubiquitin assay was performed, the interaction of Nedd4-2 (wt) with Fe65 is required for the cell apoptosis and the ubiquitylation of Fe65. We also observed that the ubiquitylation of Fe65 (wt) was augmented depending on Nedd4-2 expression levels, whereas the Fe65 WW domain mutant (W243KP245K) or the Nedd4-2 AL mutant ((72)PPLP(75) was changed to (72)APLA(75)) was under-ubiquitinated significantly. Thus, our observations implicated that the protein-protein interaction between the WW domain of Fe65 and the putative binding motif of Nedd4-2 down-regulates Fe65 protein stability and subcellular localization through its ubiquitylation, to contribute cell apoptosis.
Collapse
Affiliation(s)
- Eun Jeoung Lee
- School of Science Education, Chungbuk National University, Cheongju 361-763, Korea
| | | | | | | | | |
Collapse
|
31
|
Araki N, Ishigami T, Ushio H, Minegishi S, Umemura M, Miyagi Y, Aoki I, Morinaga H, Tamura K, Toya Y, Uchino K, Umemura S. Identification of NPC2 protein as interaction molecule with C2 domain of human Nedd4L. Biochem Biophys Res Commun 2009; 388:290-6. [DOI: 10.1016/j.bbrc.2009.07.158] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Accepted: 07/30/2009] [Indexed: 10/20/2022]
|
32
|
Luo F, Wang Y, Wang X, Sun K, Zhou X, Hui R. A Functional Variant of
NEDD4L
Is Associated With Hypertension, Antihypertensive Response, and Orthostatic Hypotension. Hypertension 2009; 54:796-801. [DOI: 10.1161/hypertensionaha.109.135103] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Fang Luo
- From the Hypertension Division, Department of Cardiology (F.L., X.Z., R.H.), and Sino-German Laboratory for Molecular Medicine, Key Laboratory for Clinical Cardiovascular Genetics, Ministry of Education (Y.W., X.W., K.S., R.H.), FuWai Hospital and Cardiovascular Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yibo Wang
- From the Hypertension Division, Department of Cardiology (F.L., X.Z., R.H.), and Sino-German Laboratory for Molecular Medicine, Key Laboratory for Clinical Cardiovascular Genetics, Ministry of Education (Y.W., X.W., K.S., R.H.), FuWai Hospital and Cardiovascular Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaojian Wang
- From the Hypertension Division, Department of Cardiology (F.L., X.Z., R.H.), and Sino-German Laboratory for Molecular Medicine, Key Laboratory for Clinical Cardiovascular Genetics, Ministry of Education (Y.W., X.W., K.S., R.H.), FuWai Hospital and Cardiovascular Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kai Sun
- From the Hypertension Division, Department of Cardiology (F.L., X.Z., R.H.), and Sino-German Laboratory for Molecular Medicine, Key Laboratory for Clinical Cardiovascular Genetics, Ministry of Education (Y.W., X.W., K.S., R.H.), FuWai Hospital and Cardiovascular Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xianliang Zhou
- From the Hypertension Division, Department of Cardiology (F.L., X.Z., R.H.), and Sino-German Laboratory for Molecular Medicine, Key Laboratory for Clinical Cardiovascular Genetics, Ministry of Education (Y.W., X.W., K.S., R.H.), FuWai Hospital and Cardiovascular Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Rutai Hui
- From the Hypertension Division, Department of Cardiology (F.L., X.Z., R.H.), and Sino-German Laboratory for Molecular Medicine, Key Laboratory for Clinical Cardiovascular Genetics, Ministry of Education (Y.W., X.W., K.S., R.H.), FuWai Hospital and Cardiovascular Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| |
Collapse
|
33
|
Nedd4L expression is downregulated in prostate cancer compared to benign prostatic hyperplasia. Eur J Surg Oncol 2009; 35:527-31. [DOI: 10.1016/j.ejso.2008.09.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2008] [Revised: 09/06/2008] [Accepted: 09/30/2008] [Indexed: 11/24/2022] Open
|
34
|
Shi PP, Cao XR, Sweezer EM, Kinney TS, Williams NR, Husted RF, Nair R, Weiss RM, Williamson RA, Sigmund CD, Snyder PM, Staub O, Stokes JB, Yang B. Salt-sensitive hypertension and cardiac hypertrophy in mice deficient in the ubiquitin ligase Nedd4-2. Am J Physiol Renal Physiol 2008; 295:F462-70. [PMID: 18524855 DOI: 10.1152/ajprenal.90300.2008] [Citation(s) in RCA: 124] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Nedd4-2 has been proposed to play a critical role in regulating epithelial Na+ channel (ENaC) activity. Biochemical and overexpression experiments suggest that Nedd4-2 binds to the PY motifs of ENaC subunits via its WW domains, ubiquitinates them, and decreases their expression on the apical membrane. Phosphorylation of Nedd4-2 (for example by Sgk1) may regulate its binding to ENaC, and thus ENaC ubiquitination. These results suggest that the interaction between Nedd4-2 and ENaC may play a crucial role in Na+ homeostasis and blood pressure (BP) regulation. To test these predictions in vivo, we generated Nedd4-2 null mice. The knockout mice had higher BP on a normal diet and a further increase in BP when on a high-salt diet. The hypertension was probably mediated by ENaC overactivity because 1) Nedd4-2 null mice had higher expression levels of all three ENaC subunits in kidney, but not of other Na+ transporters; 2) the downregulation of ENaC function in colon was impaired; and 3) NaCl-sensitive hypertension was substantially reduced in the presence of amiloride, a specific inhibitor of ENaC. Nedd4-2 null mice on a chronic high-salt diet showed cardiac hypertrophy and markedly depressed cardiac function. Overall, our results demonstrate that in vivo Nedd4-2 is a critical regulator of ENaC activity and BP. The absence of this gene is sufficient to produce salt-sensitive hypertension. This model provides an opportunity to further investigate mechanisms and consequences of this common disorder.
Collapse
Affiliation(s)
- Peijun P Shi
- Department of Obstetrics and Gynecology, Carver College of Medicine, University of Iowa, Iowa City, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Wen H, Lin R, Jiao Y, Wang F, Wang S, Lu D, Qian J, Jin L, Wang X. Two polymorphisms in NEDD4L gene and essential hypertension in Chinese Hans - a population-based case-control study. Clin Exp Hypertens 2008; 30:87-94. [PMID: 18293164 DOI: 10.1080/10641960801949909] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Neural precursor cell expressed developmentally down-regulated 4-like (NEDD4L) gene may play an important role in the development of hypertension by regulating the amiloride-sensitive epithelial sodium channel for sodium reabsorption. Recently, a functional polymorphism located at the last nucleotide of exon 1 (rs4149601) of the NEDD4L gene were found to be associated with hypertension both in African Americans and whites, and a "flip-flop" association with hypertension was found in two white samples for a polymorphism located at intron 13 (rs3865418). In this study, we aimed at examining the role of these two variants on essential hypertension in Chinese Hans. In a population-based association study, we observed significantly higher prevalence of T allelic frequencies (p = 0.023) in hypertensives than normotensives. In logistic regression analysis, the stronger association was found under the additive model with an odds ratio of 1.31 (1.04-1.67) for T allele (p = 0.025). The association remained significant (p = 0.039) with an odds ratio of 1.29 (1.01-3.66) when adjusting for age and sex. We also constructed an ANCOVA factorial model by using clinical parameters as the dependent variable for rs3865418 polymorphisms. A significantly higher diastolic blood pressure was observed at rs3865418 in the dominant model for the T allele (p = 0.009). The positive association still exist after controlling age and sex (p = 0.013). For rs4149601 polymorphism, however, we did not observe a positive association with hypertension by implicating either logistic regression models or ANCOVA models. Thus, our results support rs3865418 but not rs4149601 polymorphism of NEDD4L gene implicated in the prevalence of hypertension in Chinese Hans.
Collapse
Affiliation(s)
- Hao Wen
- First Affiliated Hospital, Xinjiang Medical University, Urumqi, China
| | | | | | | | | | | | | | | | | |
Collapse
|
36
|
NEDD4L overexpression rescues the release and infectivity of human immunodeficiency virus type 1 constructs lacking PTAP and YPXL late domains. J Virol 2008; 82:4884-97. [PMID: 18321968 DOI: 10.1128/jvi.02667-07] [Citation(s) in RCA: 133] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The cellular ESCRT pathway functions in membrane remodeling events that accompany endosomal protein sorting, cytokinesis, and enveloped RNA virus budding. In the last case, short sequence motifs (termed late domains) within human immunodeficiency virus type 1 (HIV-1) p6(Gag) bind and recruit two ESCRT pathway proteins, TSG101 and ALIX, to facilitate virus budding. We now report that overexpression of the HECT ubiquitin E3 ligase, NEDD4L/NEDD4-2, stimulated the release of HIV-1 constructs that lacked TSG101- and ALIX-binding late domains, increasing infectious titers >20-fold. Furthermore, depletion of endogenous NEDD4L inhibited the release of these crippled viruses and led to cytokinesis defects. Stimulation of virus budding was dependent upon the ubiquitin ligase activity of NEDD4L and required only the minimal HIV-1 Gag assembly regions, demonstrating that Gag has ubiquitin-dependent, cis-acting late domain activities located outside of the p6 region. NEDD4L stimulation also required TSG101 and resulted in ubiquitylation of several ESCRT-I subunits, including TSG101. Finally, we found that TSG101/ESCRT-I was required for efficient release of Mason-Pfizer monkey virus, which buds primarily by using a PPXY late domain to recruit NEDD4-like proteins. These observations suggest that NEDD4L and possibly other NEDD4-like proteins can ubiquitylate and activate ESCRT-I to function in virus budding.
Collapse
|
37
|
Bens M, Chassin C, Vandewalle A. Regulation of NaCl transport in the renal collecting duct: lessons from cultured cells. Pflugers Arch 2006; 453:133-46. [PMID: 16937117 DOI: 10.1007/s00424-006-0123-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2006] [Revised: 06/14/2006] [Accepted: 06/19/2006] [Indexed: 11/29/2022]
Abstract
The fine control of NaCl absorption regulated by hormones takes place in the distal nephron of the kidney. In collecting duct principal cells, the epithelial sodium channel (ENaC) mediates the apical entry of Na(+), which is extruded by the basolateral Na(+),K(+)-ATPase. Simian virus 40-transformed and "transimmortalized" collecting duct cell lines, derived from transgenic mice carrying a constitutive, conditionally, or tissue-specific promoter-regulated large T antigen, have been proven to be valuable tools for studying the mechanisms controlling the cell surface expression and trafficking of ENaC and Na(+),K(+)-ATPase. These cell lines have made it possible to identify sets of aldosterone- and vasopressin-stimulated proteins, and have provided new insights into the concerted mechanism of action of serum- and glucocorticoid-inducible kinase 1 (Sgk1), ubiquitin ligase Nedd4-2 (neural precursor cell-expressed, developmentally down-regulated protein 4-2), and 14-3-3 regulatory proteins in modulating ENaC-mediated Na(+) currents. Epidermal growth factor and induced leucine zipper protein have also been shown to repress and stimulate ENaC-dependent Na(+) absorption, respectively, by activating or repressing the mitogen-activated protein kinase externally regulated kinase(1/2). Overall, these findings have provided evidence suggesting that multiple pathways are involved in regulating NaCl absorption in the distal nephron.
Collapse
Affiliation(s)
- M Bens
- INSERM, U773, Centre de Recherche Biomédicale Bichat-Beaujon, Faculté de Médecine Xavier Bichat, 16 rue Henri Huchard, BP 416, 75870 Paris, France
| | | | | |
Collapse
|
38
|
Fava C, von Wowern F, Berglund G, Carlson J, Hedblad B, Rosberg L, Burri P, Almgren P, Melander O. 24-h ambulatory blood pressure is linked to chromosome 18q21-22 and genetic variation of NEDD4L associates with cross-sectional and longitudinal blood pressure in Swedes. Kidney Int 2006; 70:562-9. [PMID: 16788695 DOI: 10.1038/sj.ki.5001590] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Numerous linkage studies have indicated chromosome 18q21-22 as a locus of importance for blood pressure regulation. This locus harbors the neural precursor cell expressed developmentally downregulated 4-like (NEDD4L) gene, which is instrumental for the regulation of the amiloride-sensitive epithelial sodium channel (ENaC). In a linkage study of 16 markers (including two single nucleotide polymorphism markers located within the NEDD4L gene) on chromosome 18 between 70-104 cM and ambulatory blood pressure (ABP), in 118 families, the strongest evidence of linkage was found for 24 h and day-time systolic ABP at the NEDD4L locus (82.25 cM) (P=0.0014). In a large population sample (n=4001), we subsequently showed that a NEDD4L gene variant (rs4149601), which by alternative splicing leads to varying expression of a functionally crucial C2 domain, was associated with diastolic blood pressure (DBP) (P=0.03) and DBP progression over time (P=0.04). A genotype combination of the rs4149601 and an intronic NEDD4L marker (rs2288774) was associated with systolic blood pressure (SBP) (P=0.01), DBP (P=0.04), and progression of both SBP (P=0.03) and DBP (P=0.05) over time. A quantitative transmission disequilibrium test in the family material of the rs4149601 supported this NEDD4L variant as being at least partially causative of the linkage result. In conclusion, our findings suggest that the chromosome 18 linkage peak at 82.25 cM is explained by genetic NEDD4L variation affecting cross-sectional and longitudinal blood pressure, possibly as a consequence of altered NEDD4L interaction with ENaC.
Collapse
Affiliation(s)
- C Fava
- Department of Clinical Sciences, University Hospital MAS, Malmö, Sweden
| | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Loffing-Cueni D, Flores SY, Sauter D, Daidié D, Siegrist N, Meneton P, Staub O, Loffing J. Dietary sodium intake regulates the ubiquitin-protein ligase nedd4-2 in the renal collecting system. J Am Soc Nephrol 2006; 17:1264-74. [PMID: 16571785 DOI: 10.1681/asn.2005060659] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
The activity of the epithelial sodium (Na(+)) channel (ENaC) in the aldosterone-sensitive distal nephron (ASDN) needs to be tightly regulated to match urinary Na(+) excretion with dietary Na(+) intake. The ubiquitin-protein ligase Nedd4-2, which in vitro interacts with ENaC subunits and reduces ENaC cell surface abundance and activity by ubiquitylation of the channel, may participate in the control of ENaC. This study confirms in vivo by reverse-transcriptase-PCR that Nedd4-2 is expressed throughout the nephron and is detectable by immunoblotting in kidney extracts. By immunohistochemistry, Nedd4-2 was found to be strongly expressed in the ASDN, with low staining intensity in the late distal convoluted tubule and early connecting tubule (where apical ENaC is high) and gradually increasing detection levels toward the collecting duct (CD; where apical ENaC is low). Compared with high-Na(+) diet (5% Na(+)), 2 wk of low-Na(+) diet (0.01% Na(+)) drastically reduces Nedd4-2 immunostaining and increases apical ENaC abundance in ASDN. Reduced Nedd4-2 immunostaining is not dependent on increased apical Na(+) entry in the CD, because it is similarly observed in mice with intact and with suppressed apical ENaC activity in the CD. Consistent with a role of mineralocorticoid hormones in the long-term regulation of Nedd4-2, 5-d treatment of cultured CD (mpkCCD(cl4)) cells with 1 microM aldosterone leads to reduction of Nedd4-2 protein expression. It is concluded that Nedd4-2 abundance is regulated by Na(+) diet, by a mechanism that likely involves aldosterone. This regulation may contribute to adaptation of apical ENaC activity to altered Na(+) intake.
Collapse
Affiliation(s)
- Dominique Loffing-Cueni
- University of Fribourg, Department of Medicine-Anatomy, Route Albert Gockel 1, CH-1700 Fribourg, Switzerland
| | | | | | | | | | | | | | | |
Collapse
|
40
|
Abstract
Ubiquitylation (i.e., covalent attachment of ubiquitin moieties to proteins) of ion channels allows regulation of their activity and fate. Nedd4/Nedd4-like ubiquitin-protein ligases bind to, ubiquitylate, and modulate the internalization of several channels bearing PY motifs, whereas endoplasmic reticulum-associated degradation (involving ubiquitylation) plays an important role in the biogenesis of normal and defective channels.
Collapse
Affiliation(s)
- Hugues Abriel
- Department of Pharmacology and Toxicology, University of Lausanne, Switzerland.
| | | |
Collapse
|
41
|
Staub O, Verrey F. Impact of Nedd4 proteins and serum and glucocorticoid-induced kinases on epithelial Na+ transport in the distal nephron. J Am Soc Nephrol 2005; 16:3167-74. [PMID: 16192418 DOI: 10.1681/asn.2005050454] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The precise control of BP occurs via Na(+) homeostasis and involves the precise regulation of the epithelial Na(+) channel (ENaC) in the aldosterone-sensitive distal nephron. This has been corroborated by the linkage of mutations in the genes encoding ENaC subunits and Liddle's syndrome, a heritable form of human hypertension. Mapping of these mutations on ENaC indicated that inactivation of PY motifs is responsible and leads to the proposition that the channel interacts via its PY motifs with the WW domains of the Nedd4/Nedd4-like ubiquitin-protein ligase family. It is now well established that the cell surface expression of ENaC is controlled via ubiquitylation by this protein family and that this ubiquitylation is regulated by the aldosterone-induced protein serum and glucocorticoid induced kinase 1.
Collapse
Affiliation(s)
- Olivier Staub
- Department of Pharmacology & Toxicology, University of Lausanne, Rue du Bugnon 27, 1005 Lausanne, Switzerland.
| | | |
Collapse
|
42
|
Meneton P, Jeunemaitre X, de Wardener HE, MacGregor GA. Links between dietary salt intake, renal salt handling, blood pressure, and cardiovascular diseases. Physiol Rev 2005; 85:679-715. [PMID: 15788708 DOI: 10.1152/physrev.00056.2003] [Citation(s) in RCA: 447] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Epidemiological, migration, intervention, and genetic studies in humans and animals provide very strong evidence of a causal link between high salt intake and high blood pressure. The mechanisms by which dietary salt increases arterial pressure are not fully understood, but they seem related to the inability of the kidneys to excrete large amounts of salt. From an evolutionary viewpoint, the human species is adapted to ingest and excrete <1 g of salt per day, at least 10 times less than the average values currently observed in industrialized and urbanized countries. Independent of the rise in blood pressure, dietary salt also increases cardiac left ventricular mass, arterial thickness and stiffness, the incidence of strokes, and the severity of cardiac failure. Thus chronic exposure to a high-salt diet appears to be a major factor involved in the frequent occurrence of hypertension and cardiovascular diseases in human populations.
Collapse
Affiliation(s)
- Pierre Meneton
- Institut National de la Santé et de la Recherche Médicale U367, Département de Santé Publique et d'Informatique Médicale, Faculté de Médecine Broussais Hôtel Dieu, Paris, France.
| | | | | | | |
Collapse
|
43
|
Fouladkou F, Alikhani-Koopaei R, Vogt B, Flores SY, Malbert-Colas L, Lecomte MC, Loffing J, Frey FJ, Frey BM, Staub O. A naturally occurring human Nedd4-2 variant displays impaired ENaC regulation in Xenopus laevis oocytes. Am J Physiol Renal Physiol 2004; 287:F550-61. [PMID: 15140763 DOI: 10.1152/ajprenal.00353.2003] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The epithelial Na(+) channel (ENaC) is regulated by the ubiquitin-protein ligase Nedd4-2 via interaction with ENaC PY-motifs. These PY-motifs are mutated/deleted in Liddle's syndrome, resulting in elevated Na(+) reabsorption and hypertension explained partly by impaired ENaC-Nedd4-2 interaction. We hypothesized that Nedd4-2 is a susceptibility gene for hypertension and screened 856 renal patients and healthy controls for mutations in a subset of exons of the human Nedd4-2 gene that are relevant for ENaC regulation by PCR/single-strand conformational polymorphism. Several variants were identified, and one nonsynonymous mutation (Nedd4-2-P355L) was further characterized. This mutation next to the 3' donor site of exon 15 does not affect in vitro splicing of Nedd4-2 mRNA. However, in the Xenopus oocyte expression system, Nedd4-2-P355L-dependent ENaC inhibition was weaker compared with the wild type (Nedd4-2-WT), and this difference depended on the presence of intact PY-motifs on ENaC. This could not be explained by the amount of wild type or mutant Nedd4-2 coimmunoprecipitating with ENaC. When the phosphorylation level of human Nedd4-2 Ser(448) (known to be phosphorylated by the Sgk1 kinase) was determined with a specific anti-pSer(448) antibody, we observed stronger basal phosphorylation of Nedd4-2-P355L. Both the phosphorylation level and the accompanying amiloride-sensitive Na(+) currents could be further enhanced to approximately the same levels by coexpressing Sgk1. In addition, the role of the two other putative Sgk1 phosphorylation sites (S342 and T367) appears also to be affected by the P355L mutation. The differential phosphorylation status between wild-type and mutant Nedd4-2 provides an explanation for the different potential to inhibit ENaC activity.
Collapse
Affiliation(s)
- Fatemeh Fouladkou
- Division of Nephrology and Hypertension, Department of Clinical Research, University of Bern, CH-3010 Bern
| | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Ingham RJ, Gish G, Pawson T. The Nedd4 family of E3 ubiquitin ligases: functional diversity within a common modular architecture. Oncogene 2004; 23:1972-84. [PMID: 15021885 DOI: 10.1038/sj.onc.1207436] [Citation(s) in RCA: 390] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Neuronal precursor cell-expressed developmentally downregulated 4 (Nedd4) is the prototypical protein in a family of E3 ubiquitin ligases that have a common domain architecture. They are comprised of a catalytic C-terminal HECT domain and N-terminal C2 domain and WW domains responsible for cellular localization and substrate recognition. These proteins are found throughout eukaryotes and regulate diverse biological processes through the targeted degradation of proteins that generally have a PPxY motif for WW domain recognition, and are found in the nucleus and at the plasma membrane. Whereas the yeast Saccharomyces cerevisiae uses a single protein, Rsp5p, to carry out these functions, evolution has provided higher eukaryotes with several related Nedd4 proteins that appear to have specialized roles. In this review we discuss how knowledge of individual domain function has provided insight into the physiological roles of the Nedd4 proteins and describe recent results that suggest discrete functions for individual family members.
Collapse
Affiliation(s)
- Robert J Ingham
- Samuel Lunenfeld Research Institute, Mt. Sinai Hospital, Toronto, Ontario, Canada M5G 1X5.
| | | | | |
Collapse
|
45
|
Qi H, Grenier J, Fournier A, Labrie C. Androgens differentially regulate the expression of NEDD4L transcripts in LNCaP human prostate cancer cells. Mol Cell Endocrinol 2003; 210:51-62. [PMID: 14615060 DOI: 10.1016/j.mce.2003.08.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The NEDD4L gene encodes a ubiquitin ligase that targets the epithelial sodium channel for degradation. A search for transcripts whose levels increase following androgen treatment of LNCaP human prostate cancer cells led to the isolation of three new NEDD4L transcripts designated NEDD4Lf, NEDD4Lg and NEDD4Lh. The three transcripts encode different forms of the NEDD4L protein, two of which contain an N-terminal C2 domain. These transcripts were detected at high levels in human prostate and mammary gland, and at lower levels in brain and skeletal muscle. We also found that the previously described NEDD4La and NEDD4Lc (KIAA0439) transcripts are also expressed in prostate and LNCaP cells. However, only NEDD4Lf, NEDD4Lg and NEDD4Lh were up-regulated by androgen in LNCaP cells. These data provide new information on the structure and expression profile of NEDD4L-derived transcripts and identify specific isoforms of the NEDD4L ubiquitin ligase as proteins with potentially important roles in androgen action and prostate physiology.
Collapse
Affiliation(s)
- Heng Qi
- Oncology and Molecular Endocrinology Research Center, CHUL Research Center (CHUQ), Laval University, Quebec, Que., Canada G1V 4G2
| | | | | | | |
Collapse
|
46
|
Itani OA, Campbell JR, Herrero J, Snyder PM, Thomas CP. Alternate promoters and variable splicing lead to hNedd4-2 isoforms with a C2 domain and varying number of WW domains. Am J Physiol Renal Physiol 2003; 285:F916-29. [PMID: 12876068 DOI: 10.1152/ajprenal.00203.2003] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Mutations that disrupt a PY motif in epithelial Na+ channel (ENaC) subunits increase surface expression of Na+ channels in the collecting duct, resulting in greater Na+ reabsorption. Recently, Nedd4 and Nedd4-2 have been identified as ubiquitin ligases that can interact with ENaC via its PY motifs to regulate channel activity. To further understand the role of human Nedd4-2 (hNedd4-2), we cloned its cDNAs and determined its genomic organization using a bioinformatic approach. The gene is present as a single copy, spans at least 400 kb, and contains >40 exons. Multiple 5'-exons were identified by 5'-rapid amplification of cDNA ends, and tissue-specific expression of these transcripts was noted by RT-PCR and RNase protection assay. Alternate polyadenylation signal sequences led to varying lengths of the 3'-untranslated region. Alternate splicing events within internal exons were also noted. Open reading frame analysis indicates that hNedd4-2 encode multiple protein variants with and without a C2 domain, and with a variable number of WW domains. Coexpression, in Fischer rat thyroid epithelia, of ENaC and Nedd4-2 cDNAs leads to a significant reduction in amiloride-sensitive currents, confirming a role in Na+ transport regulation. In vitro binding studies demonstrated that individual PY motifs of alpha-, beta-, and gamma-ENaC have strong affinity for WW domains 3 and 4 but not 1 and 2. These studies indicate that alternate transcripts of Nedd4-2 may interact with ENaC differently. Understanding the function of variant proteins will increase our knowledge of the role of hNedd4-2 in the regulation of ENaC and define protein domains important for Nedd4-2 function.
Collapse
Affiliation(s)
- Omar A Itani
- Department of Internal Medicine, University of Iowa College of Medicine, Iowa City, USA
| | | | | | | | | |
Collapse
|
47
|
Kamynina E, Staub O. Concerted action of ENaC, Nedd4-2, and Sgk1 in transepithelial Na(+) transport. Am J Physiol Renal Physiol 2002; 283:F377-87. [PMID: 12167587 DOI: 10.1152/ajprenal.00143.2002] [Citation(s) in RCA: 149] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The epithelial Na(+) channel (ENaC), located in the apical membrane of renal aldosterone-responsive epithelia, plays an essential role in controlling the Na(+) balance of extracellular fluids and hence blood pressure. As of now, ENaC is the only Na(+) transport protein for which genetic evidence exists for its involvement in the genesis of both hypertension (Liddle's syndrome) and hypotension (pseudohypoaldosteronism type 1). The regulation of ENaC involves a variety of hormonal signals (aldosterone, vasopressin, insulin), but the molecular mechanisms behind this regulation are mostly unknown. Two regulatory proteins have gained interest in recent years: the ubiquitin-protein ligase neural precursor cell-expressed, developmentally downregulated gene 4 isoform Nedd4-2, which negatively controls ENaC cell surface expression, and serum glucocorticoid-inducible kinase 1 (Sgk1), which is an aldosterone- and insulin-dependent, positive regulator of ENaC density at the plasma membrane. Here, we summarize present ideas about Sgk1 and Nedd4-2 and the lines of experimental evidence, suggesting that they act sequentially in the regulatory pathways governed by aldosterone and insulin and regulate ENaC number at the plasma membrane.
Collapse
Affiliation(s)
- Elena Kamynina
- Institute of Pharmacology and Toxicology, University of Lausanne, CH-1005 Lausanne, Switzerland
| | | |
Collapse
|