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Yokoi N, Fukata Y, Okatsu K, Yamagata A, Liu Y, Sanbo M, Miyazaki Y, Goto T, Abe M, Kassai H, Sakimura K, Meijer D, Hirabayashi M, Fukai S, Fukata M. 14-3-3 proteins stabilize LGI1-ADAM22 levels to regulate seizure thresholds in mice. Cell Rep 2021; 37:110107. [PMID: 34910912 DOI: 10.1016/j.celrep.2021.110107] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 10/08/2021] [Accepted: 11/16/2021] [Indexed: 01/17/2023] Open
Abstract
What percentage of the protein function is required to prevent disease symptoms is a fundamental question in genetic disorders. Decreased transsynaptic LGI1-ADAM22 protein complexes, because of their mutations or autoantibodies, cause epilepsy and amnesia. However, it remains unclear how LGI1-ADAM22 levels are regulated and how much LGI1-ADAM22 function is required. Here, by genetic and structural analysis, we demonstrate that quantitative dual phosphorylation of ADAM22 by protein kinase A (PKA) mediates high-affinity binding of ADAM22 to dimerized 14-3-3. This interaction protects LGI1-ADAM22 from endocytosis-dependent degradation. Accordingly, forskolin-induced PKA activation increases ADAM22 levels. Leveraging a series of ADAM22 and LGI1 hypomorphic mice, we find that ∼50% of LGI1 and ∼10% of ADAM22 levels are sufficient to prevent lethal epilepsy. Furthermore, ADAM22 function is required in excitatory and inhibitory neurons. These results suggest strategies to increase LGI1-ADAM22 complexes over the required levels by targeting PKA or 14-3-3 for epilepsy treatment.
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Affiliation(s)
- Norihiko Yokoi
- Division of Membrane Physiology, Department of Molecular and Cellular Physiology, National Institute for Physiological Sciences, National Institutes of Natural Sciences, Okazaki, Aichi 444-8787, Japan; Department of Physiological Sciences, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
| | - Yuko Fukata
- Division of Membrane Physiology, Department of Molecular and Cellular Physiology, National Institute for Physiological Sciences, National Institutes of Natural Sciences, Okazaki, Aichi 444-8787, Japan; Department of Physiological Sciences, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan.
| | - Kei Okatsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Atsushi Yamagata
- RIKEN Center for Biosystems Dynamics Research, Yokohama, Kanagawa 230-0045, Japan
| | - Yan Liu
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Makoto Sanbo
- Center for Genetic Analysis of Behavior, National Institute for Physiological Sciences, National Institutes of Natural Sciences, Okazaki, Aichi 444-8787, Japan
| | - Yuri Miyazaki
- Division of Membrane Physiology, Department of Molecular and Cellular Physiology, National Institute for Physiological Sciences, National Institutes of Natural Sciences, Okazaki, Aichi 444-8787, Japan; Department of Physiological Sciences, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
| | - Teppei Goto
- Center for Genetic Analysis of Behavior, National Institute for Physiological Sciences, National Institutes of Natural Sciences, Okazaki, Aichi 444-8787, Japan
| | - Manabu Abe
- Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Hidetoshi Kassai
- Laboratory of Animal Resources, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Kenji Sakimura
- Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Dies Meijer
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH16 4SB, UK
| | - Masumi Hirabayashi
- Department of Physiological Sciences, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan; Center for Genetic Analysis of Behavior, National Institute for Physiological Sciences, National Institutes of Natural Sciences, Okazaki, Aichi 444-8787, Japan
| | - Shuya Fukai
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Masaki Fukata
- Division of Membrane Physiology, Department of Molecular and Cellular Physiology, National Institute for Physiological Sciences, National Institutes of Natural Sciences, Okazaki, Aichi 444-8787, Japan; Department of Physiological Sciences, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan.
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2
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Shi L, Li S, Maurer K, Zhang Z, Petri M, Sullivan KE. Enhancer RNA and NFκB-dependent P300 regulation of ADAMDEC1. Mol Immunol 2018; 103:312-321. [PMID: 30352365 PMCID: PMC6260809 DOI: 10.1016/j.molimm.2018.09.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 09/21/2018] [Accepted: 09/27/2018] [Indexed: 01/27/2023]
Abstract
We observed increased expression of ADAMDEC1 RNA in monocytes from patients with systemic lupus erythematosus. The precise role of ADAMDEC1 is uncertain and uniquely among metalloproteinases it utilizes a zinc-coordinating aspartic acid residue which allows it to escape inhibition by tissue inhibitor of metalloprotease-3 (TIMP-3). A closely related gene encodes the protein ADAM28, which is not up-regulated in lupus. We leveraged the ability to look at both gene's promoters and enhancers simultaneously. ADAMDEC1 was up-regulated by LPS while ADAM28 was not upregulated in the short term. We identified MAP kinases and NFκB as critical cell pathways regulating the expression of ADAMDEC1. These same pathways were implicated in driving the expression of the ADAMDEC1 upstream enhancer RNAs. We demonstrated that binding of the enhancer RNAs produced from the upstream enhancer were critically important and that p300 bound to both the RNA from the enhancer and the DNA at the enhancer. P300 binding to the enhancer was dependent on NFκB. These data define the critical pathways regulating the expression of ADAMDEC1 and extend our knowledge of the roles of enhancer RNAs and mechanistically links p300 and enhancer RNAs.
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Affiliation(s)
- Lihua Shi
- The Division of Allergy Immunology at The Children's Hospital of Philadelphia, 3615 Civic Center Blvd, Philadelphia, PA, 19104, United states.
| | - Song Li
- The Division of Allergy Immunology at The Children's Hospital of Philadelphia, 3615 Civic Center Blvd, Philadelphia, PA, 19104, United states.
| | - Kelly Maurer
- The Division of Allergy Immunology at The Children's Hospital of Philadelphia, 3615 Civic Center Blvd, Philadelphia, PA, 19104, United states.
| | - Zhe Zhang
- The Department of Biomedical and Health informatics at the Children's Hospital of Philadelphia, 3535 Market St, Philadelphia, PA, 19104, United states.
| | - Michelle Petri
- Division of Rheumatology, Johns Hopkins University School of Medicine, 1830 E. Monument Street, Baltimore, MD, 21205, United states.
| | - Kathleen E Sullivan
- The Division of Allergy Immunology at The Children's Hospital of Philadelphia, 3615 Civic Center Blvd, Philadelphia, PA, 19104, United states.
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Li M, Lu H, Liu X, Meng Q, Zhao Y, Chen X, Hu J, Liu W, Cai L. Overexpression of 14-3-3ζ in lung tissue predicts an improved outcome in patients with lung adenocarcinoma. Oncol Lett 2018; 16:1051-1058. [PMID: 29963182 DOI: 10.3892/ol.2018.8742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 06/02/2017] [Indexed: 12/16/2022] Open
Abstract
One of the factors limiting the survival rate of patients with lung cancer is the high risk for recurrence following surgical resection. Previous studies indicate that 14-3-3ζ is a central cellular hub protein that regulates multiple signaling pathways involved in cancer progression. The present study evaluated the prognostic significance of 14-3-3ζ in patients with lung adenocarcinoma. The expression of 14-3-3ζ and E-cadherin, an important protein involved in the epithelial-mesenchymal transition, was evaluated by immunohistochemistry in lung tumor tissues and adjacent normal lung tissues resected from 123 patients with lung adenocarcinoma. The correlation between the two proteins, their association with clinicopathological features and their prognostic significance were subsequently analyzed. Within these parameters, an overall survival (OS) prediction model was constructed using multivariate Cox proportional hazards regression. The expression of 14-3-3ζ was upregulated in lung adenocarcinoma, in contrast to E-cadherin, which was downregulated in lung adenocarcinoma tissues compared with normal tissues. In addition, the expression of 14-3-3ζ was positively correlated with that of E-cadherin (r=0.256, P=0.012) and differentiation (P<0.001). Increased E-cadherin expression was indicative of smaller tumor size and greater differentiation, and the overexpression of 14-3-3ζ and E-cadherin were associated with longer OS (P=0.010 and P=0.006, respectively). Finally, a multivariate analysis revealed that TNM stage and 14-3-3ζ were independent prognostic indicators (P<0.001 and P=0.026, respectively). 14-3-3ζ may function as a tumor suppressor associated with E-cadherin upregulation and could be used as a prognostic biomarker for resected lung adenocarcinoma. These findings provide a novel insight on potential intervention strategies for patients with lung cancer.
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Affiliation(s)
- Man Li
- The Fourth Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150040, P.R. China.,Department of Endoscopy, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150040, P.R. China
| | - Hailing Lu
- The Fourth Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150040, P.R. China
| | - Xiaolian Liu
- The Fourth Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150040, P.R. China.,Department of General Oncology, Weihai Municipal Hospital, Weihai, Shandong 264200, P.R. China
| | - Qingwei Meng
- The Fourth Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150040, P.R. China
| | - Yanbin Zhao
- The Fourth Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150040, P.R. China
| | - Xuesong Chen
- The Fourth Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150040, P.R. China
| | - Jing Hu
- The Fourth Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150040, P.R. China
| | - Wei Liu
- The Fourth Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150040, P.R. China
| | - Li Cai
- The Fourth Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150040, P.R. China
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Zhou Y, Cheng C, Baranenko D, Wang J, Li Y, Lu W. Effects of Acanthopanax senticosus on Brain Injury Induced by Simulated Spatial Radiation in Mouse Model Based on Pharmacokinetics and Comparative Proteomics. Int J Mol Sci 2018; 19:E159. [PMID: 29342911 PMCID: PMC5796108 DOI: 10.3390/ijms19010159] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 12/25/2017] [Accepted: 01/03/2018] [Indexed: 01/14/2023] Open
Abstract
The active compounds in Acanthopanax senticosus (AS) have different pharmacokinetic characteristics in mouse models. Cmax and AUC of Acanthopanax senticosus polysaccharides (ASPS) were significantly reduced in radiation-injured mice, suggesting that the blood flow of mouse was blocked or slowed, due to the pathological state of ischemia and hypoxia, which are caused by radiation. In contrast, the ability of various metabolizing enzymes to inactivate, capacity of biofilm transport decrease, and lessening of renal blood flow accounts for radiation, resulting in the accumulation of syringin and eleutheroside E in the irradiated mouse. Therefore, there were higher pharmacokinetic parameters-AUC, MRT, and t1/2 of the two compounds in radiation-injured mouse, when compared with normal mouse. In order to investigate the intrinsic mechanism of AS on radiation injury, AS extract's protective effects on brain, the main part of mouse that suffered from radiation, were explored. The function of AS extract in repressing expression changes of radiation response proteins in prefrontal cortex (PFC) of mouse brain included tubulin protein family (α-, β-tubulin subunits), dihydropyrimidinase-related protein 2 (CRMP2), γ-actin, 14-3-3 protein family (14-3-3ζ, ε), heat shock protein 90β (HSP90β), and enolase 2. The results demonstrated the AS extract had positive effects on nerve cells' structure, adhesion, locomotion, fission, and phagocytosis, through regulating various action pathways, such as Hippo, phagosome, PI3K/Akt (phosphatidylinositol 3 kinase/protein kinase B), Neurotrophin, Rap1 (Ras-related protein RAP-1A), gap junction glycolysis/gluconeogenesis, and HIF-1 (Hypoxia-inducible factor 1) signaling pathways to maintain normal mouse neurological activity. All of the results indicated that AS may be a promising alternative medicine for the treatment of radiation injury in mouse brain. It would be tested that whether the bioactive ingredients of AS could be effective through the blood-brain barrier in the future.
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Affiliation(s)
- Yingyu Zhou
- Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology, Harbin 150001, China.
- National Local Joint Laboratory of Extreme Environmental Nutritional Molecule Synthesis Transformation and Separation, Harbin 150001, China.
| | - Cuilin Cheng
- Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology, Harbin 150001, China.
- National Local Joint Laboratory of Extreme Environmental Nutritional Molecule Synthesis Transformation and Separation, Harbin 150001, China.
| | - Denis Baranenko
- Biotechnologies of the Third Millennium, ITMO University, Saint-Petersburg 197101, Russia.
| | - Jiaping Wang
- China Astronaut Research and Training Centre, Beijing 100193, China.
| | - Yongzhi Li
- National Local Joint Laboratory of Extreme Environmental Nutritional Molecule Synthesis Transformation and Separation, Harbin 150001, China.
- China Astronaut Research and Training Centre, Beijing 100193, China.
| | - Weihong Lu
- Institute of Extreme Environment Nutrition and Protection, Harbin Institute of Technology, Harbin 150001, China.
- National Local Joint Laboratory of Extreme Environmental Nutritional Molecule Synthesis Transformation and Separation, Harbin 150001, China.
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5
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Li H, Zhang Y, Wang L, Dong N, Qi X, Wu Q. A novel cytoplasmic tail motif regulates mouse corin expression on the cell surface. Biochem Biophys Res Commun 2015; 465:152-8. [PMID: 26241673 DOI: 10.1016/j.bbrc.2015.07.156] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 07/30/2015] [Indexed: 01/23/2023]
Abstract
Type II transmembrane serine proteases (TTSPs) are important in many biological processes. Cell surface expression is critical for TTSP activation and function. To date, the mechanism underlying TTSP cell surface expression is poorly understood. Corin is a TTSP and acts as the pro-atrial natriuretic peptide convertase that is essential for sodium homeostasis and normal blood pressure. In this study, we investigated how cytoplasmic tail sequences may regulate corin expression and activation on the cell surface. By site-directed mutagenesis, we made mouse corin proteins with truncations or point-mutations in the cytoplasmic tail. We expressed the mutants in transfected HEK293 cells and analyzed corin cell surface expression and activation by Western blotting and flow cytometry. We found that corin truncation mutants lacking a Lys-Phe-Gln sequence at residues 71-73 had higher levels of cell surface expression and activation compared with that in wild-type corin. When Lys-71, Phe-72 and Gln-73 residues were mutated together, but not individually, in corin with the full-length cytoplasmic tail, increased levels of cell surface expression and zymogen activation were also observed. These results indicate that residues Lys-71, Phe-72 and Gln-73 serve as a novel retention motif in the intracellular pathway to regulate corin cell surface expression and activation.
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Affiliation(s)
- Hui Li
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Yue Zhang
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Lina Wang
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Ningzheng Dong
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China; Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaofei Qi
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China; Key Laboratory of Thrombosis and Hemostasis, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China; Department of Urology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Qingyu Wu
- Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China; Molecular Cardiology, Cleveland Clinic, Cleveland, OH, United States.
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7
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Wagner M, Hintner H, Bauer JW, Onder K. Gene expression analysis of an epidermolysis bullosa simplex Dowling-Meara cell line by subtractive hybridization: recapitulation of cellular differentiation, migration and wound healing. Exp Dermatol 2011; 21:111-7. [DOI: 10.1111/j.1600-0625.2011.01420.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Gene expression profile of ADAMs and ADAMTSs metalloproteinases in normal and malignant plasma cells and in the bone marrow environment. Exp Hematol 2011; 39:546-557.e8. [DOI: 10.1016/j.exphem.2011.02.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 01/28/2011] [Accepted: 02/03/2011] [Indexed: 01/15/2023]
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9
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Ko BS, Chang TC, Hsu C, Chen YC, Shen TL, Chen SC, Wang J, Wu KK, Jan YJ, Liou JY. Overexpression of 14-3-3ε predicts tumour metastasis and poor survival in hepatocellular carcinoma. Histopathology 2011; 58:705-11. [PMID: 21401702 DOI: 10.1111/j.1365-2559.2011.03789.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
AIMS The results of our earlier studies suggested that 14-3-3ε is involved in cancer cell survival and growth. However, it is not clear whether 14-3-3ε plays a role in tumour metastasis and patient outcome. The aim of this study was to determine whether 14-3-3ε is a marker for predicting hepatocellular carcinoma (HCC) metastasis and survival. METHODS AND RESULTS One hundred and fourteen patients with tissue-diagnosed primary HCC were followed for an average of 58.6 months. 14-3-3ε in liver tissues was analysed by immunohistochemistry, and quantified by a Quick score system. Correlation of 14-3-3ε with patient survival and metastasis was analysed with a Wilcoxon signed rank test, Kaplan-Meier survival curves, and Cox proportional hazard regression. Seventy-one of 114 patients (62.3%) had a significant increase of 14-3-3ε expression in HCC tissues, whereas normal tissues expressed weak or undetectable 14-3-3ε. Elevated 14-3-3ε expression was significantly associated with shortened overall survival and progression-free survival. Furthermore, 14-3-3ε overexpression increased the risk of metastasis 4.6-fold. CONCLUSIONS Overexpression of 14-3-3ε in primary HCC tissues predicts a high risk of extrahepatic metastasis and worse survival, and is a potential therapeutic target.
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Affiliation(s)
- Bor-Sheng Ko
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
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10
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Liu H, Shen J, Feng L, Yu Y. Low concentration of anti-7,8-dihydroxy-9,10-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene induces alterations of extracellular protein profile of exposed epithelial cells. Proteomics 2009; 9:4259-64. [DOI: 10.1002/pmic.200700886] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Abstract
The ADAMs (a disintegrin and metalloproteinase) are a fascinating family of transmembrane and secreted proteins with important roles in regulating cell phenotype via their effects on cell adhesion, migration, proteolysis and signalling. Though all ADAMs contain metalloproteinase domains, in humans only 13 of the 21 genes in the family encode functional proteases, indicating that at least for the other eight members, protein–protein interactions are critical aspects of their biological functions. The functional ADAM metalloproteinases are involved in “ectodomain shedding” of diverse growth factors, cytokines, receptors and adhesion molecules. The archetypal activity is shown by ADAM-17 (tumour necrosis factor-α convertase, TACE), which is the principal protease involved in the activation of pro-TNF-α, but whose sheddase functions cover a broad range of cell surface molecules. In particular, ADAM-17 is required for generation of the active forms of Epidermal Growth Factor Receptor (EGFR) ligands, and its function is essential for the development of epithelial tissues. Several other ADAMs have important sheddase functions in particular tissue contexts. Another major family member, ADAM-10, is a principal player in signalling via the Notch and Eph/ephrin pathways. For a growing number of substrates, foremost among them being Notch, cleavage by ADAM sheddases is essential for their subsequent “regulated intramembrane proteolysis” (RIP), which generates cleaved intracellular domains that translocate to the nucleus and regulate gene transcription. Several ADAMs play roles in spermatogenesis and sperm function, potentially by effecting maturation of sperm and their adhesion and migration in the uterus. Other non-catalytic ADAMs function in the CNS via effects on guidance mechanisms. The ADAM family are thus fundamental to many control processes in development and homeostasis, and unsurprisingly they are also linked to pathological states when their functions are dysregulated, including cancer, cardiovascular disease, asthma, Alzheimer’s disease. This review will provide an overview of current knowledge of the human ADAMs, discussing their structure, function, regulation and disease involvement.
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Affiliation(s)
- Dylan R Edwards
- Biomedical Research Centre, School of Biological Sciences, University of East Anglia, Norwich NR4 7TJ, UK.
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Tak H, Jang E, Kim SB, Park J, Suk J, Yoon YS, Ahn JK, Lee JH, Joe CO. 14-3-3epsilon inhibits MK5-mediated cell migration by disrupting F-actin polymerization. Cell Signal 2007; 19:2379-87. [PMID: 17728103 DOI: 10.1016/j.cellsig.2007.07.016] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2007] [Accepted: 07/23/2007] [Indexed: 11/26/2022]
Abstract
The signal pathway by which 14-3-3epsilon inhibits cell migration induced by MAPK-activated protein kinase 5 (MK5) was investigated in cultured HeLa cells. Both in vivo and in vitro analyses have revealed that 14-3-3epsilon interacts with MK5. 14-3-3epsilon bound to MK5 inhibits the phosphorylation of HSP27, a known substrate of MK5. Disturbance of actin cytoskeleton organization by 14-3-3epsilon was shown in transfected cells transiently expressing 14-3-3epsilon as well as established cells stably expressing 14-3-3epsilon. Moreover, overexpression of 14-3-3epsilon resulted in the inhibition of cell migration induced by MK5 overexpression or TNFalpha treatment. Our results suggest that 14-3-3epsilon bound to MK5 inhibits cell migration by inhibiting the phosphorylation of HSP27 whose phosphorylation regulates F-actin polymerization, actin cytoskeleton organization and subsequent actinfilament dynamics.
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Affiliation(s)
- Heejae Tak
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon, South Korea
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13
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Abstract
ADAM proteins are a family of metalloproteinases with a disintegrin domain. They have proteolytic as well as adhesive functions and can be involved in cell fusion events. Some ADAM proteins are expressed in a highly tissue restricted fashion, whereas others are expressed quite ubiquitously. In the brain, ADAM proteins have a role in neural development, axon guidance and inflammatory responses. Although there may be some functional overlap, homozygous deletion of some ADAM genes in mice can have fatal consequences. The expression and possible role of ADAM proteins in the brain will be discussed.
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Affiliation(s)
- Ulrike Novak
- Department of Surgery, University of Melbourne, Royal Melbourne Hospital, Parkville, Australia.
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Schmidt H, Hoffmann S, Tran T, Stoldt M, Stangler T, Wiesehan K, Willbold D. Solution structure of a Hck SH3 domain ligand complex reveals novel interaction modes. J Mol Biol 2006; 365:1517-32. [PMID: 17141806 DOI: 10.1016/j.jmb.2006.11.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2006] [Revised: 10/24/2006] [Accepted: 11/03/2006] [Indexed: 12/01/2022]
Abstract
We studied the interaction of hematopoietic cell kinase SH3 domain (HckSH3) with an artificial 12-residue proline-rich peptide PD1 (HSKYPLPPLPSL) identified as high affinity ligand (K(D)=0.2 muM). PD1 shows an unusual ligand sequence for SH3 binding in type I orientation because it lacks the typical basic anchor residue at position P(-3), but instead has a tyrosine residue at this position. A basic lysine residue, however, is present at position P(-4). The solution structure of the HckSH3:PD1 complex, which is the first HckSH3 complex structure available, clearly reveals that the P(-3) tyrosine residue of PD1 does not take the position of the typical anchor residue but rather forms additional van der Waals interactions with the HckSH3 RT loop. Instead, lysine at position P(-4) of PD1 substitutes the function of the P(-3) anchor residue. This finding expands the well known ligand consensus sequence +xxPpxP by +xxxPpxP. Thus, software tools like iSPOT fail to identify PD1 as a high-affinity HckSH3 ligand so far. In addition, a short antiparallel beta-sheet in the RT loop of HckSH3 is observed upon PD1 binding. The structure of the HckSH3:PD1 complex reveals novel features of SH3 ligand binding and yields new insights into the structural basics of SH3-ligand interactions. Consequences for computational prediction tools adressing SH3-ligand interactions as well as the biological relevance of our findings are discussed.
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Affiliation(s)
- Holger Schmidt
- Forschungszentrum Jülich GmbH, INB, Biomolecular NMR, 52425 Jülich, Germany
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15
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Gödde NJ, D'Abaco GM, Paradiso L, Novak U. Efficient ADAM22 surface expression is mediated by phosphorylation-dependent interaction with 14-3-3 protein family members. J Cell Sci 2006; 119:3296-305. [PMID: 16868027 DOI: 10.1242/jcs.03065] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
ADAM22 is one of three catalytically inactive ADAM family members highly expressed in the brain. ADAM22 has numerous splice variants, all with considerable cytoplasmic tails of up to 148 amino acids. ADAM22 can act to inhibit cell proliferation, however, it has been suggested that it also acts as an adhesion protein. We identified three 14-3-3 protein members by a yeast two-hybrid screen and show by co-immunoprecipitation that the cytoplasmic domain of ADAM22 can interact with all six 14-3-3 proteins expressed in the brain. In addition, we show that 14-3-3 proteins interact preferentially with the serine phosphorylated precursor form of ADAM22. ADAM22 has two 14-3-3 protein binding consensus motifs; the first binding site, spanning residues 831-834, was shown to be the most crucial for 14-3-3 binding to occur. The interaction between ADAM22 and 14-3-3 proteins is dependent on phosphorylation of ADAM22, but not of 14-3-3 proteins. ADAM22 point mutants lacking functional 14-3-3 protein binding motifs could no longer accumulate efficiently at the cell surface. Deletion of both 14-3-3 binding sites and newly identified ER retention motifs restored localization of ADAM22 at the cell surface. These results reveal a role for 14-3-3 proteins in targeting ADAM22 to the membrane by masking ER retention signals.
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Affiliation(s)
- Nathan J Gödde
- Department of Surgery, University of Melbourne, Parkville 3050, Australia
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16
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Yang P, Baker KA, Hagg T. The ADAMs family: coordinators of nervous system development, plasticity and repair. Prog Neurobiol 2006; 79:73-94. [PMID: 16824663 DOI: 10.1016/j.pneurobio.2006.05.001] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2006] [Revised: 05/18/2006] [Accepted: 05/23/2006] [Indexed: 10/24/2022]
Abstract
A disintegrin and metalloprotease (ADAM) transmembrane proteins have metalloprotease, integrin-binding, intracellular signaling and cell adhesion activities. In contrast to other metalloproteases, ADAMs are particularly important for cleavage-dependent activation of proteins such as Notch, amyloid precursor protein (APP) and transforming growth factor alpha (TGFalpha), and can bind integrins. Not surprisingly, ADAMs have been shown or suggested to play important roles in the development of the nervous system, where they regulate proliferation, migration, differentiation and survival of various cells, as well as axonal growth and myelination. On the eleventh anniversary of the naming of this family of proteins, the relatively unknown ADAMs are emerging as potential therapeutic targets for neural repair. For example, over-expression of ADAM10, one of the alpha-secretases for APP, can prevent amyloid formation and hippocampal defects in an Alzheimer mouse model. Another example of this potential neural repair role is the finding that ADAM21 is uniquely associated with neurogenesis and growing axons of the adult brain. This comprehensive review will discuss the growing literature about the roles of ADAMs in the developing and adult nervous system, and their potential roles in neurological disorders. Most excitingly, the expanding understanding of their normal roles suggests that they can be manipulated to promote neural repair in the degenerating and injured adult nervous system.
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Affiliation(s)
- Peng Yang
- Kentucky Spinal Cord Injury Research Center, Department of Neurological Surgery, University of Louisville, Louisville, KY 40292, USA
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Abstract
14-3-3 proteins are a family of highly conserved cellular proteins that play key roles in the regulation of central physiological pathways. More than 200 14-3-3 target proteins have been identified, including proteins involved in mitogenic and cell survival signaling, cell cycle control and apoptotic cell death. Importantly, the involvement of 14-3-3 proteins in the regulation of various oncogenes and tumor suppressor genes points to a potential role in human cancer. The present review summarizes current findings implicating a 14-3-3 role in cancer while discussing potential mechanisms and points of action of 14-3-3 during cancer development and progression.
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Affiliation(s)
- Guri Tzivion
- Karmanos Cancer Institute and Department of Pathology, Wayne State University, Detroit, MI 48201, USA.
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18
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Abstract
Co-ordinated progression through the cell cycle is essential for the maintenance of genomic integrity. Several checkpoint mechanisms guarantee that the next step in cell cycle progression is only entered after error-free completion of the previous phase. Cell cycle deregulation caused by changes in 14-3-3 expression has been implicated in cancer formation. 14-3-3 proteins function at several key points in G(1)/S- and G(2)/M-transition by binding to regulatory proteins and modulating their function. In most cases, the association with 14-3-3 proteins requires a specific phosphorylation of the protein ligand and mediates cell cycle arrest. 14-3-3 binding may lead to cytoplasmic sequestration of the protein ligand but may also have other functional consequences. The 14-3-3sigma gene is induced by p53 and its product inhibits G(2)/M progression by cytoplasmatic sequestration of CDC2-cyclin B complexes. In addition, 14-3-3 proteins have been implicated in the transcriptional regulation of CDK-inhibitors as they modulate the transcription factors p53, FOXO and MIZ1. Effects of 14-3-3 proteins on cell cycle progression and the regulation of 14-3-3 activity during the cell cycle are reviewed in this chapter.
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Affiliation(s)
- Heiko Hermeking
- Molecular Oncology, Independent Max-Planck Research Group, Max-Planck Institute of Biochemistry, Martinsried/Munich, Germany.
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19
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Ortiz RM, Kärkkäinen I, Huovila APJ. Aberrant alternative exon use and increased copy number of human metalloprotease-disintegrin ADAM15 gene in breast cancer cells. Genes Chromosomes Cancer 2005; 41:366-78. [PMID: 15384173 DOI: 10.1002/gcc.20102] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
ADAM genes have been associated with cancer, with ADAM expression, genomic rearrangements, and, by implication of ADAM proteins in the altered behavior found in tumor cells. In the present study, increased copy number of the ADAM15 gene in human breast cancer cell lines was demonstrated by fluorescence in situ hybridization. This was not reflected in mRNA levels, however. Instead, the use of alternative ADAM15 exons appeared erratic, leading to aberrant combinations of ADAM15 mRNA isoforms in the cancer cells. Clustering analysis indicated that these isoform patterns were nonrandom, suggesting a failure in the regulation mechanism or mechanisms of the alternative exon usage. Altered regulation of alternative exon usage may provide a useful target for cancer diagnostics development. ADAM15 would be particularly appropriate for breast cancer diagnostics because the various combinations of its three alternatively used exons can be readily examined with a simple, straightforward PCR protocol.
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Affiliation(s)
- Rebekka M Ortiz
- Institute of Medical Technology, University of Tampere and Tampere University Hospital, Tampere, Finland
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20
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Zhu P, Sang Y, Xu H, Zhao J, Xu R, Sun Y, Xu T, Wang X, Chen L, Feng H, Li C, Zhao S. ADAM22 plays an important role in cell adhesion and spreading with the assistance of 14-3-3. Biochem Biophys Res Commun 2005; 331:938-46. [PMID: 15882968 DOI: 10.1016/j.bbrc.2005.03.229] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2005] [Indexed: 10/25/2022]
Abstract
Cellular adhesion plays important roles in a variety of biological processes. The ADAM family contains disintegrin-like and metalloproteinase-like domains which potentially have cell adhesion and protease activities. Recent studies suggest that the interaction between 14-3-3zeta and ADAM22cyt can regulate cell adhesion and spreading, therefore it has a potential role in neural development and function. 14-3-3 family has seven highly conserved members that regulate various cellular functions. Using yeast two-hybrid method, we identified that ADAM22cyt bound some other 14-3-3 family members. The interaction was further confirmed by in vitro protein pull-down assay and co-immunoprecipitation. We also found that the overexpression of exogenous ADAM22 in HEK293 cells could significantly enhance cell adhesion and spreading, compared with the truncated ADAM22 lack of 14-3-3 binding motifs. These results strongly demonstrated a functional role for ADAM22/14-3-3 in cell adhesion and spreading.
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Affiliation(s)
- Pengcheng Zhu
- The State Key Laboratory of Genetic Engineering, Institute of Genetics, Fudan University, Shanghai 200433, China.
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21
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Orian-Rousseau V, Mink S, Mengwasser J, HogenEsch H, Guo F, Thies WG, Hofmann M, Herrlich P, Ponta H. Genes upregulated in a metastasizing human colon carcinoma cell line. Int J Cancer 2005; 113:699-705. [PMID: 15499635 DOI: 10.1002/ijc.20644] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Differential gene expression between the metastatic human colon cancer cell line HT29p and its nonmetastatic counterpart HT29-MTX was revealed by suppression subtractive hybridization. Fifty-eight individual genes showed increased mRNA levels in HT29p cells. Only 15 of these genes had been related to transformation in previous studies; the majority of genes are new candidates encoding proteins relevant for the metastatic process. Cancer profiling arrays as well as in situ hybridization study revealed that at least some of the genes obtained in the SSH screen are also differentially expressed in human tumors.
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22
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Ding X, Yang LY, Huang GW, Wang W, Lu WQ. ADAM17 mRNA expression and pathological features of hepatocellular carcinoma. World J Gastroenterol 2004; 10:2735-9. [PMID: 15309730 PMCID: PMC4572204 DOI: 10.3748/wjg.v10.i18.2735] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AIM: To study the expression of a disintegrin and metalloproteinase 17 (ADAM17) mRNA in hepatocellular carcinoma (HCC) and to evaluate the relationship between ADAM17 mRNA expression and clinicopathological features of HCC.
METHODS: Hepatocellular carcinomas (HCC) from 31 cases were divided into small HCC (SHCC), nodular HCC (NHCC) and solitary large HCC (SLHCC) according to tumor diameter and the number of nodes. ADAM17 mRNA expressions were compared among those groups by means of semi-quantitative reverse transcription polymerase chain reaction (RT-PCR). The relationship between ADAM17 mRNA expression level and clinicopathological features of HCC was evaluated.
RESULTS: NHCC had lower differentiation and was more frequently of microvascular invasion (10/12) than SHCC (3/11) and SLHCC (3/8) (P < 0.05), but no statistical difference was observed between SHCC and SLHCC comparing their clinicopathological features. ADAM17 mRNA expression was detected in 77.4% (24/31) of HCC tissues and was significantly higher than that in paired non-cancerous liver tissues in which only 35.5% (11/31) of the samples were detected of the expression (P < 0.05). The expression of ADAM17 mRNA was much higher in NHCC than in SHCC and SLHCC (P < 0.05), while no significant difference was discovered between SHCC and SLHCC. The quantities of ADAM17 mRNA were significantly higher in poorly differentiated HCC than in well or moderately differentiated HCC, but no statistical difference was found concerning liver cirrhosis, tumor capsule formation or microvascular invasion of the cancer.
CONCLUSION: The increased expression of ADAM17 may play a key role in the development of HCC. The expression levels of ADAM17 mRNA varied among different pathological types of HCC. Lower mRNA expression of ADAM17 mRNA in SLHCC may be associated with the better molecular pathological features of SLHCC.
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Affiliation(s)
- Xiang Ding
- Liver Cancer Laboratory, Department of General Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
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23
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Abstract
ADAMs contain adhesive and metalloprotease domains. As major ectodomain sheddases, they release a variety of cell-surface proteins, including growth factors, cytokines, cell adhesion molecules and receptors. ADAMs can also cleave and remodel components of the extracellular matrix. Hence, ADAMs are emerging as key modulators of cell-cell and cell-matrix interactions. Important questions, including if and how ADAM adhesive domains promote ADAM protease function, are currently being addressed.
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Affiliation(s)
- Judith M White
- University of Virginia, Health System School of Medicine, Department of Cell Biology, 1300 Jefferson Park Avenue, Charlottesville, VA 22908-0732, USA.
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24
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Sun YP, Deng KJ, Wang F, Zhang J, Huang X, Qiao S, Zhao S. Two novel isoforms of Adam23 expressed in the developmental process of mouse and human brains. Gene 2004; 325:171-8. [PMID: 14697522 DOI: 10.1016/j.gene.2003.10.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A metalloprotease and disintegrin (ADAM) is a family of membrane-anchored proteins and all family members have a multi-domain structure containing a zinc metalloprotease domain and a disintegrin domain that may serve as an integrin ligand. Here we reported two novel mammalian transcripts of Adam23, named Adam23 beta and Adam23 gamma, to be involved in the development and functional activities of mammalian brains. Adam23 gamma was isolated from a 22-week human fetal brain cDNA library, using an EST homologous to Adam as a probe, and is 100% homologous to human Adam23 (Adam23 alpha) except that it lacks a fragment of 91 bp near the C-terminal, thus it could not form obvious transmembrane domain. Adam23 beta was discovered while the diversity at the transmembrane domain (TM) was analyzed. Adam23 beta has a different sequence in the 91 nucleotides and thus encode different transmembrane domain. Adam23 beta and Adam23 gamma are mainly expressed in brain like Adam23 alpha. RT-PCR experiments in mouse brain also detected the two isoforms, consistent with observation of Northern analysis of human RNAs. Furthermore, results of RT-PCR amplification of Adam23 gamma in mouse brains of different developmental stages revealed a developmentally regulated expression pattern: Adam23 gamma is expressed in embryonic and infant brain, and disappeared after the 10th postnatal day. This temporally changing expression pattern of Adam23 gamma suggests that ADAM23 gamma likely plays an important role in brain development.
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Affiliation(s)
- Y P Sun
- State key Laboratory of Genetics Engineering, Institute of Genetics, School of Life Science, Fudan University, YiFu Building of Science and Technology, Shanghai 200433, PR China
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25
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Bax DV, Messent AJ, Tart J, van Hoang M, Kott J, Maciewicz RA, Humphries MJ. Integrin alpha5beta1 and ADAM-17 interact in vitro and co-localize in migrating HeLa cells. J Biol Chem 2004; 279:22377-86. [PMID: 14970227 DOI: 10.1074/jbc.m400180200] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Tumor necrosis factor (TNF) alpha-converting enzyme (TACE/ADAM-17) has diverse roles in the proteolytic processing of cell surface molecules and, due to its ability to process TNFalpha, is a validated therapeutic target for anti-inflammatory therapies. Unlike a number of other ADAM proteins, which interact with integrin receptors via their disintegrin domains, there is currently no evidence for an ADAM-17-integrin association. By analyzing the adhesion of a series of cell lines with recombinant fragments of the extracellular domain of ADAM-17, we now demonstrate a functional interaction between ADAM-17 and alpha(5)beta(1) integrin in a trans orientation. Because ADAM-17-mediated adhesion was sensitive to RGD peptides and EDTA, and the integrin-binding site within ADAM-17 was narrowed down to the disintegrin/cysteine-rich region, the two molecules appear to have a ligand-receptor relationship mediated by the alpha(5)beta(1) ligand binding pocket. Intriguingly, ADAM-17 and alpha(5)beta(1) were found to co-localize in both membrane ruffles and focal adhesions in HeLa cells. When confluent HeLa cell monolayers were wounded, ADAM-17 and alpha(5)beta(1) redistributed to the leading edge and co-localized, which is suggestive of a cis orientation. We postulate that the interaction of ADAM-17 with alpha(5)beta(1) may target or modulate its metalloproteolytic activity.
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Affiliation(s)
- Daniel V Bax
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, University of Manchester, The Michael Smith Building, Oxford Road, Manchester M13 9PT
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26
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Affiliation(s)
- Daniela Berg
- Institute for Human Genetics, Department of Medical Genetics, University of Tübingen, Calwerstrasse 7, 72076 Tübingen, Germany.
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