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Blakely WJ, Hatterschide J, White EA. HPV18 E7 inhibits LATS1 kinase and activates YAP1 by degrading PTPN14. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.07.583953. [PMID: 38496413 PMCID: PMC10942435 DOI: 10.1101/2024.03.07.583953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
High-risk human papillomavirus (HPV) oncoproteins inactivate cellular tumor suppressors to reprogram host cell signaling pathways. HPV E7 proteins bind and degrade the tumor suppressor PTPN14, thereby promoting the nuclear localization of the YAP1 oncoprotein and inhibiting keratinocyte differentiation. YAP1 is a transcriptional coactivator that drives epithelial cell stemness and self-renewal. YAP1 activity is inhibited by the highly conserved Hippo pathway, which is frequently inactivated in human cancers. MST1/2 and LATS1/2 kinases form the core of the Hippo kinase cascade. Active LATS1 kinase is phosphorylated on threonine 1079 and inhibits YAP1 by phosphorylating it on amino acids including serine 127. Here, we tested the effect of high-risk (carcinogenic) HPV18 E7 on Hippo pathway activity. We found that either PTPN14 knockout or PTPN14 degradation by HPV18 E7 decreased phosphorylation of LATS1 T1079 and YAP1 S127 in human keratinocytes and inhibited keratinocyte differentiation. Conversely, PTPN14-dependent differentiation required LATS kinases and certain PPxY motifs in PTPN14. Neither MST1/2 kinases nor the putative PTPN14 phosphatase active site were required for PTPN14 to promote differentiation. Taken together, these data support that PTPN14 inactivation or degradation of PTPN14 by HPV18 E7 reduce LATS1 activity, promoting active YAP1 and inhibiting keratinocyte differentiation.
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Affiliation(s)
- William J. Blakely
- Department of Otorhinolaryngology: Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Joshua Hatterschide
- Department of Otorhinolaryngology: Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Current address: Department of Integrative Immunobiology, Duke University School of Medicine, Durham, NC, USA
| | - Elizabeth A. White
- Department of Otorhinolaryngology: Head and Neck Surgery, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
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2
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Yang Y, Wu M, Pan Y, Hua Y, He X, Li X, Wang J, Gan X. WW domains form a folded type of nuclear localization signal to guide YAP1 nuclear import. J Cell Biol 2024; 223:e202308013. [PMID: 38488622 PMCID: PMC10942854 DOI: 10.1083/jcb.202308013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 12/31/2023] [Accepted: 02/23/2024] [Indexed: 03/18/2024] Open
Abstract
The nuclear translocation of YAP1 is significantly implicated in the proliferation, stemness, and metastasis of cancer cells. Although the molecular basis underlying YAP1 subcellular distribution has been extensively explored, it remains to be elucidated how the nuclear localization signal guides YAP1 to pass through the nuclear pore complex. Here, we define a globular type of nuclear localization signal composed of folded WW domains, named as WW-NLS. It directs YAP1 nuclear import through the heterodimeric nuclear transport receptors KPNA-KPNB1, bypassing the canonical nuclear localization signal that has been well documented in KPNA/KPNB1-mediated nuclear import. Strikingly, competitive interference with the function of the WW-NLS significantly attenuates YAP1 nuclear translocation and damages stemness gene activation and sphere formation in malignant breast cancer cells. Our findings elucidate a novel globular type of nuclear localization signal to facilitate nuclear entry of WW-containing proteins including YAP1.
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Affiliation(s)
- Yilin Yang
- Department of Biochemistry and Molecular Biology, Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, PR China
| | - Mengxiao Wu
- Department of Biochemistry and Molecular Biology, Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, PR China
| | - Yu Pan
- Department of Biochemistry and Molecular Biology, Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, PR China
| | - Yue Hua
- Department of Biochemistry and Molecular Biology, Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, PR China
| | - Xinyu He
- Department of Biochemistry and Molecular Biology, Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, PR China
| | - Xinyang Li
- Department of Biochemistry and Molecular Biology, Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, PR China
| | - Jiyong Wang
- Department of Biochemistry and Molecular Biology, Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, PR China
| | - Xiaoqing Gan
- Department of Biochemistry and Molecular Biology, Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, PR China
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3
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Martínez-Lumbreras S, Träger LK, Mulorz MM, Payr M, Dikaya V, Hipp C, König J, Sattler M. Intramolecular autoinhibition regulates the selectivity of PRPF40A tandem WW domains for proline-rich motifs. Nat Commun 2024; 15:3888. [PMID: 38719828 PMCID: PMC11079029 DOI: 10.1038/s41467-024-48004-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 04/18/2024] [Indexed: 05/12/2024] Open
Abstract
PRPF40A plays an important role in the regulation of pre-mRNA splicing by mediating protein-protein interactions in the early steps of spliceosome assembly. By binding to proteins at the 5´ and 3´ splice sites, PRPF40A promotes spliceosome assembly by bridging the recognition of the splices. The PRPF40A WW domains are expected to recognize proline-rich sequences in SF1 and SF3A1 in the early spliceosome complexes E and A, respectively. Here, we combine NMR, SAXS and ITC to determine the structure of the PRPF40A tandem WW domains in solution and characterize the binding specificity and mechanism for proline-rich motifs recognition. Our structure of the PRPF40A WW tandem in complex with a high-affinity SF1 peptide reveals contributions of both WW domains, which also enables tryptophan sandwiching by two proline residues in the ligand. Unexpectedly, a proline-rich motif in the N-terminal region of PRPF40A mediates intramolecular interactions with the WW tandem. Using NMR, ITC, mutational analysis in vitro, and immunoprecipitation experiments in cells, we show that the intramolecular interaction acts as an autoinhibitory filter for proof-reading of high-affinity proline-rich motifs in bona fide PRPF40A binding partners. We propose that similar autoinhibitory mechanisms are present in most WW tandem-containing proteins to enhance binding selectivity and regulation of WW/proline-rich peptide interaction networks.
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Affiliation(s)
- Santiago Martínez-Lumbreras
- Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Munich, Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany.
- TUM School of Natural Sciences, Department of Bioscience and Bavarian NMR Center, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany.
| | - Lena K Träger
- TUM School of Natural Sciences, Department of Bioscience and Bavarian NMR Center, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Miriam M Mulorz
- Institute of Molecular Biology (IMB) gGmbH, Ackermannweg 4, 55128, Mainz, Germany
| | - Marco Payr
- TUM School of Natural Sciences, Department of Bioscience and Bavarian NMR Center, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Varvara Dikaya
- TUM School of Natural Sciences, Department of Bioscience and Bavarian NMR Center, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Clara Hipp
- Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Munich, Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany
- TUM School of Natural Sciences, Department of Bioscience and Bavarian NMR Center, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany
| | - Julian König
- Institute of Molecular Biology (IMB) gGmbH, Ackermannweg 4, 55128, Mainz, Germany
| | - Michael Sattler
- Institute of Structural Biology, Molecular Targets and Therapeutics Center, Helmholtz Munich, Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany.
- TUM School of Natural Sciences, Department of Bioscience and Bavarian NMR Center, Technical University of Munich, Lichtenbergstrasse 4, 85748, Garching, Germany.
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4
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Stepan J, Heinz DE, Dethloff F, Wiechmann S, Martinelli S, Hafner K, Ebert T, Junglas E, Häusl AS, Pöhlmann ML, Jakovcevski M, Pape JC, Zannas AS, Bajaj T, Hermann A, Ma X, Pavenstädt H, Schmidt MV, Philipsen A, Turck CW, Deussing JM, Rammes G, Robinson AC, Payton A, Wehr MC, Stein V, Murgatroyd C, Kremerskothen J, Kuster B, Wotjak CT, Gassen NC. Inhibiting Hippo pathway kinases releases WWC1 to promote AMPAR-dependent synaptic plasticity and long-term memory in mice. Sci Signal 2024; 17:eadj6603. [PMID: 38687825 DOI: 10.1126/scisignal.adj6603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 04/11/2024] [Indexed: 05/02/2024]
Abstract
The localization, number, and function of postsynaptic AMPA-type glutamate receptors (AMPARs) are crucial for synaptic plasticity, a cellular correlate for learning and memory. The Hippo pathway member WWC1 is an important component of AMPAR-containing protein complexes. However, the availability of WWC1 is constrained by its interaction with the Hippo pathway kinases LATS1 and LATS2 (LATS1/2). Here, we explored the biochemical regulation of this interaction and found that it is pharmacologically targetable in vivo. In primary hippocampal neurons, phosphorylation of LATS1/2 by the upstream kinases MST1 and MST2 (MST1/2) enhanced the interaction between WWC1 and LATS1/2, which sequestered WWC1. Pharmacologically inhibiting MST1/2 in male mice and in human brain-derived organoids promoted the dissociation of WWC1 from LATS1/2, leading to an increase in WWC1 in AMPAR-containing complexes. MST1/2 inhibition enhanced synaptic transmission in mouse hippocampal brain slices and improved cognition in healthy male mice and in male mouse models of Alzheimer's disease and aging. Thus, compounds that disrupt the interaction between WWC1 and LATS1/2 might be explored for development as cognitive enhancers.
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Affiliation(s)
- Jens Stepan
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany
- Department of Obstetrics and Gynecology, Paracelsus Medical University, 5020 Salzburg, Austria
- Department of Gynecology and Obstetrics, Technical University of Munich, 81675 Munich, Germany
| | - Daniel E Heinz
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany
- Research Group Neuronal Plasticity, Max Planck Institute of Psychiatry, 80804 Munich, Germany
- Max Planck School of Cognition, 04103 Leipzig, Germany
| | - Frederik Dethloff
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany
- Metabolomics Core Facility, Max Planck Institute for Biology of Ageing, 50931 Cologne, Germany
| | - Svenja Wiechmann
- Chair of Proteomics and Bioanalytics, Technical University of Munich, 85354 Freising, Germany
- German Cancer Consortium (DKTK), 80336 Munich, Germany
- German Cancer Center (DKFZ), 69120 Heidelberg, Germany
| | - Silvia Martinelli
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Kathrin Hafner
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Tim Ebert
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany
- Research Group Neuronal Plasticity, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Ellen Junglas
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany
| | - Alexander S Häusl
- Research Group Neurobiology of Stress Resilience, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Max L Pöhlmann
- Research Group Neurobiology of Stress Resilience, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Mira Jakovcevski
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Julius C Pape
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Anthony S Zannas
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany
- Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
| | - Thomas Bajaj
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany
| | - Anke Hermann
- Department of Medicine D, Division of General Internal Medicine, Nephrology, and Rheumatology, University Hospital Münster, 48149 Münster, Germany
| | - Xiao Ma
- Research Group Cell Signalling, Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, 80336 Munich, Germany
| | - Hermann Pavenstädt
- Department of Medicine D, Division of General Internal Medicine, Nephrology, and Rheumatology, University Hospital Münster, 48149 Münster, Germany
| | - Mathias V Schmidt
- Research Group Neurobiology of Stress Resilience, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Alexandra Philipsen
- Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany
| | - Christoph W Turck
- Proteomics and Biomarkers, Max Planck Institute of Psychiatry, 80804 Munich, Germany
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223 Yunnan, China
| | - Jan M Deussing
- Department of Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, 80804 Munich, Germany
- Research Group Molecular Neurogenetics, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Gerhard Rammes
- Department of Anaesthesiology and Intensive Care Medicine, Klinikum rechts der Isar, Technical University of Munich, 81675 Munich, Germany
| | - Andrew C Robinson
- Division of Neuroscience, Faculty of Biology, Medicine and Health, School of Biological Sciences, University of Manchester, Salford Royal Hospital, Salford M6 8HD, UK
- Geoffrey Jefferson Brain Research Centre, Manchester Academic Health Science Centre (MAHSC), Salford M6 8HD, UK
| | - Antony Payton
- Division of Informatics, Imaging and Data Sciences, University of Manchester, Manchester M13 9NT, UK
| | - Michael C Wehr
- Research Group Cell Signalling, Department of Psychiatry and Psychotherapy, LMU University Hospital, LMU Munich, 80336 Munich, Germany
| | - Valentin Stein
- Institute of Physiology II, Medical Faculty University of Bonn, 53115 Bonn, Germany
| | | | - Joachim Kremerskothen
- Department of Medicine D, Division of General Internal Medicine, Nephrology, and Rheumatology, University Hospital Münster, 48149 Münster, Germany
| | - Bernhard Kuster
- Chair of Proteomics and Bioanalytics, Technical University of Munich, 85354 Freising, Germany
- German Cancer Consortium (DKTK), 80336 Munich, Germany
- German Cancer Center (DKFZ), 69120 Heidelberg, Germany
- Bavarian Center for Biomolecular Mass Spectrometry, Technical University of Munich, 85354 Freising, Germany
| | - Carsten T Wotjak
- Research Group Neuronal Plasticity, Max Planck Institute of Psychiatry, 80804 Munich, Germany
- Central Nervous System Diseases Research, Boehringer Ingelheim Pharmaceuticals GmbH & Co. KG, 88397 Biberach an der Riß, Germany
| | - Nils C Gassen
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany
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5
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Chen L, Qian Z, Zheng Y, Zhang J, Sun J, Zhou C, Xiao H. Structural analysis of PTPN21 reveals a dominant-negative effect of the FERM domain on its phosphatase activity. SCIENCE ADVANCES 2024; 10:eadi7404. [PMID: 38416831 PMCID: PMC10901363 DOI: 10.1126/sciadv.adi7404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 01/24/2024] [Indexed: 03/01/2024]
Abstract
PTPN21 belongs to the four-point-one, ezrin, radixin, moesin (FERM) domain-containing protein tyrosine phosphatases (PTP) and plays important roles in cytoskeleton-associated cellular processes like cell adhesion, motility, and cargo transport. Because of the presence of a WPE loop instead of a WPD loop in the phosphatase domain, it is often considered to lack phosphatase activity. However, many of PTPN21's biological functions require its catalytic activity. To reconcile these findings, we have determined the structures of individual PTPN21 FERM, PTP domains, and a complex between FERM-PTP. Combined with biochemical analysis, we have found that PTPN21 PTP is weakly active and is autoinhibited by association with its FERM domain. Disruption of FERM-PTP interaction results in enhanced ERK activation. The oncogenic HPV18 E7 protein binds to PTP at the same location as PTPN21 FERM, indicating that it may act by displacing the FERM domain from PTP. Our results provide mechanistic insight into PTPN21 and benefit functional studies of PTPN21-mediated processes.
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Affiliation(s)
- Lu Chen
- Department of Pathology of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, China
- School of Public Health, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Zijun Qian
- Department of Hematology of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, China
| | - Yuyuan Zheng
- School of Public Health, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Jie Zhang
- Department of Hematology of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, China
| | - Jie Sun
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Chun Zhou
- Department of Pathology of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, China
- School of Public Health, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Haowen Xiao
- Department of Hematology of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310016, China
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6
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Zhang L, Yang Y, Xie L, Zhou Y, Zhong Z, Ding J, Wang Z, Wang Y, Liu X, Yu F, Wu J. JCAD deficiency delayed liver regenerative repair through the Hippo-YAP signalling pathway. Clin Transl Med 2024; 14:e1630. [PMID: 38509842 PMCID: PMC10955226 DOI: 10.1002/ctm2.1630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/25/2024] [Accepted: 02/29/2024] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND AND AIMS Liver regeneration retardation post partial hepatectomy (PH) is a common clinical problem after liver transplantation. Identification of key regulators in liver regeneration post PH may be beneficial for clinically improving the prognosis of patients after liver transplantation. This study aimed to clarify the function of junctional protein-associated with coronary artery disease (JCAD) in liver regeneration post PH and to reveal the underlying mechanisms. METHODS JCAD knockout (JCAD-KO), liver-specific JCAD-KO (Jcad△Hep) mice and their control group were subjected to 70% PH. RNA sequencing was conducted to unravel the related signalling pathways. Primary hepatocytes from KO mice were treated with epidermal growth factor (EGF) to evaluate DNA replication. Fluorescent ubiquitination-based cell cycle indicator (FUCCI) live-imaging system was used to visualise the phases of cell cycle. RESULTS Both global and liver-specific JCAD deficiency postponed liver regeneration after PH as indicated by reduced gene expression of cell cycle transition and DNA replication. Prolonged retention in G1 phase and failure to transition over the cell cycle checkpoint in JCAD-KO cell line was indicated by a FUCCI live-imaging system as well as pharmacologic blockage. JCAD replenishment by adenovirus reversed the impaired DNA synthesis in JCAD-KO primary hepatocyte in exposure to EGF, which was abrogated by a Yes-associated protein (YAP) inhibitor, verteporfin. Mechanistically, JCAD competed with large tumour suppressor 2 (LATS2) for WWC1 interaction, leading to LATS2 inhibition and thereafter YAP activation, and enhanced expression of cell cycle-associated genes. CONCLUSION JCAD deficiency led to delayed regeneration after PH as a result of blockage in cell cycle progression through the Hippo-YAP signalling pathway. These findings uncovered novel functions of JCAD and suggested a potential strategy for improving graft growth and function post liver transplantation. KEY POINTS JCAD deficiency leads to an impaired liver growth after PH due to cell division blockage. JCAD competes with LATS2 for WWC1 interaction, resulting in LATS2 inhibition, YAP activation and enhanced expression of cell cycle-associated genes. Delineation of JCADHippoYAP signalling pathway would facilitate to improve prognosis of acute liver failure and graft growth in living-donor liver transplantation.
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Affiliation(s)
- Li Zhang
- Department of Medical Microbiology & ParasitologyMOE/NHC/CAMS Key Laboratory of Medical Molecular VirologySchool of Basic Medical SciencesFudan University Shanghai Medical CollegeShanghaiChina
| | - Yong‐Yu Yang
- Department of Medical Microbiology & ParasitologyMOE/NHC/CAMS Key Laboratory of Medical Molecular VirologySchool of Basic Medical SciencesFudan University Shanghai Medical CollegeShanghaiChina
| | - Li Xie
- Department of Medical Microbiology & ParasitologyMOE/NHC/CAMS Key Laboratory of Medical Molecular VirologySchool of Basic Medical SciencesFudan University Shanghai Medical CollegeShanghaiChina
| | - Yuan Zhou
- Department of Medical Microbiology & ParasitologyMOE/NHC/CAMS Key Laboratory of Medical Molecular VirologySchool of Basic Medical SciencesFudan University Shanghai Medical CollegeShanghaiChina
| | - Zhenxing Zhong
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghai Key Laboratory of Medical EpigeneticsInternational Co‐Laboratory of Medical Epigenetics and MetabolismInstitutes of Biomedical SciencesFudan University Shanghai Medical CollegeShanghaiChina
| | - Jia Ding
- Jing'an Central District HospitalShanghaiChina
| | - Zhong‐Hua Wang
- Department of Medical Microbiology & ParasitologyMOE/NHC/CAMS Key Laboratory of Medical Molecular VirologySchool of Basic Medical SciencesFudan University Shanghai Medical CollegeShanghaiChina
| | - Yu‐Li Wang
- Department of Medical Microbiology & ParasitologyMOE/NHC/CAMS Key Laboratory of Medical Molecular VirologySchool of Basic Medical SciencesFudan University Shanghai Medical CollegeShanghaiChina
| | - Xiu‐Ping Liu
- Department of Pathology and Laboratory MedicineSchool of Basic Medical SciencesFudan UniversityShanghaiChina
| | - Fa‐Xing Yu
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghai Key Laboratory of Medical EpigeneticsInternational Co‐Laboratory of Medical Epigenetics and MetabolismInstitutes of Biomedical SciencesFudan University Shanghai Medical CollegeShanghaiChina
| | - Jian Wu
- Department of Medical Microbiology & ParasitologyMOE/NHC/CAMS Key Laboratory of Medical Molecular VirologySchool of Basic Medical SciencesFudan University Shanghai Medical CollegeShanghaiChina
- Department of Gastroenterology & HepatologyZhongshan Hospital of Fudan UniversityShanghaiChina
- Shanghai Institute of Liver DiseasesFudan University Shanghai Medical CollegeShanghaiChina
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7
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Zhu QM, Hsu YHH, Lassen FH, MacDonald BT, Stead S, Malolepsza E, Kim A, Li T, Mizoguchi T, Schenone M, Guzman G, Tanenbaum B, Fornelos N, Carr SA, Gupta RM, Ellinor PT, Lage K. Protein interaction networks in the vasculature prioritize genes and pathways underlying coronary artery disease. Commun Biol 2024; 7:87. [PMID: 38216744 PMCID: PMC10786878 DOI: 10.1038/s42003-023-05705-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 12/13/2023] [Indexed: 01/14/2024] Open
Abstract
Population-based association studies have identified many genetic risk loci for coronary artery disease (CAD), but it is often unclear how genes within these loci are linked to CAD. Here, we perform interaction proteomics for 11 CAD-risk genes to map their protein-protein interactions (PPIs) in human vascular cells and elucidate their roles in CAD. The resulting PPI networks contain interactions that are outside of known biology in the vasculature and are enriched for genes involved in immunity-related and arterial-wall-specific mechanisms. Several PPI networks derived from smooth muscle cells are significantly enriched for genetic variants associated with CAD and related vascular phenotypes. Furthermore, the networks identify 61 genes that are found in genetic loci associated with risk of CAD, prioritizing them as the causal candidates within these loci. These findings indicate that the PPI networks we have generated are a rich resource for guiding future research into the molecular pathogenesis of CAD.
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Affiliation(s)
- Qiuyu Martin Zhu
- Cardiovascular Disease Initiative & Precision Cardiology Laboratory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Yu-Han H Hsu
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Novo Nordisk Foundation Center for Genomic Mechanisms of Disease, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Frederik H Lassen
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Bryan T MacDonald
- Cardiovascular Disease Initiative & Precision Cardiology Laboratory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Stephanie Stead
- Cardiovascular Disease Initiative & Precision Cardiology Laboratory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Edyta Malolepsza
- Genomics Platform, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - April Kim
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Taibo Li
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Taiji Mizoguchi
- Cardiovascular Disease Initiative & Precision Cardiology Laboratory, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA
| | - Monica Schenone
- Proteomics Platform, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Gaelen Guzman
- Proteomics Platform, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Benjamin Tanenbaum
- Proteomics Platform, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Nadine Fornelos
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Novo Nordisk Foundation Center for Genomic Mechanisms of Disease, Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Steven A Carr
- Proteomics Platform, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Rajat M Gupta
- Divisions of Cardiovascular Medicine and Genetics, Brigham and Women's Hospital, Boston, MA, USA
| | - Patrick T Ellinor
- Cardiovascular Disease Initiative & Precision Cardiology Laboratory, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA, USA.
| | - Kasper Lage
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Novo Nordisk Foundation Center for Genomic Mechanisms of Disease, Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA.
- Institute of Biological Psychiatry, Mental Health Centre Sct. Hans, Mental Health Services Copenhagen, Roskilde, Denmark.
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8
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Qi S, Zhong Z, Zhu Y, Wang Y, Ma M, Wang Y, Liu X, Jin R, Jiao Z, Zhu R, Sha Z, Dang K, Liu Y, Lim D, Mao J, Zhang L, Yu F. Two Hippo signaling modules orchestrate liver size and tumorigenesis. EMBO J 2023; 42:e112126. [PMID: 36919851 PMCID: PMC10233384 DOI: 10.15252/embj.2022112126] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 02/12/2023] [Accepted: 02/21/2023] [Indexed: 03/16/2023] Open
Abstract
The Hippo pathway is a central regulator of organ size and tumorigenesis and is commonly depicted as a kinase cascade, with an increasing number of regulatory and adaptor proteins linked to its regulation over recent years. Here, we propose that two Hippo signaling modules, MST1/2-SAV1-WWC1-3 (HPO1) and MAP4K1-7-NF2 (HPO2), together regulate the activity of LATS1/2 kinases and YAP/TAZ transcriptional co-activators. In mouse livers, the genetic inactivation of either HPO1 or HPO2 module results in partial activation of YAP/TAZ, bile duct hyperplasia, and hepatocellular carcinoma (HCC). On the contrary, inactivation of both HPO1 and HPO2 modules results in full activation of YAP/TAZ, rapid development of intrahepatic cholangiocarcinoma (iCCA), and early lethality. Interestingly, HPO1 has a predominant role in regulating organ size. HPO1 inactivation causes a homogenous YAP/TAZ activation and cell proliferation across the whole liver, resulting in a proportional and rapid increase in liver size. Thus, this study has reconstructed the order of the Hippo signaling network and suggests that LATS1/2 and YAP/TAZ activities are finetuned by HPO1 and HPO2 modules to cause different cell fates, organ size changes, and tumorigenesis trajectories.
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Affiliation(s)
- Sixian Qi
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghaiChina
- The Shanghai Key Laboratory of Medical Epigenetics, The International Co‐laboratory of Medical Epigenetics and Metabolism, The State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Zhenxing Zhong
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghaiChina
- The Shanghai Key Laboratory of Medical Epigenetics, The International Co‐laboratory of Medical Epigenetics and Metabolism, The State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Yuwen Zhu
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghaiChina
- The Shanghai Key Laboratory of Medical Epigenetics, The International Co‐laboratory of Medical Epigenetics and Metabolism, The State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Yebin Wang
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghaiChina
- The Shanghai Key Laboratory of Medical Epigenetics, The International Co‐laboratory of Medical Epigenetics and Metabolism, The State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Mingyue Ma
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghaiChina
- The Shanghai Key Laboratory of Medical Epigenetics, The International Co‐laboratory of Medical Epigenetics and Metabolism, The State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Yu Wang
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghaiChina
- The Shanghai Key Laboratory of Medical Epigenetics, The International Co‐laboratory of Medical Epigenetics and Metabolism, The State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Xincheng Liu
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghaiChina
- The Shanghai Key Laboratory of Medical Epigenetics, The International Co‐laboratory of Medical Epigenetics and Metabolism, The State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Ruxin Jin
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghaiChina
- The Shanghai Key Laboratory of Medical Epigenetics, The International Co‐laboratory of Medical Epigenetics and Metabolism, The State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Zhihan Jiao
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghaiChina
- The Shanghai Key Laboratory of Medical Epigenetics, The International Co‐laboratory of Medical Epigenetics and Metabolism, The State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Rui Zhu
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghaiChina
- The Shanghai Key Laboratory of Medical Epigenetics, The International Co‐laboratory of Medical Epigenetics and Metabolism, The State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Zhao Sha
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghaiChina
- The Shanghai Key Laboratory of Medical Epigenetics, The International Co‐laboratory of Medical Epigenetics and Metabolism, The State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Kyvan Dang
- Department of Molecular, Cell and Cancer BiologyUniversity of Massachusetts Medical SchoolWorcesterMAUSA
| | - Ying Liu
- Department of Pathology, School of Basic Medical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Dae‐Sik Lim
- Department of Biological Sciences, National Creative Research Initiatives CenterKorea Advanced Institute of Science and TechnologyDaejeonRepublic of Korea
| | - Junhao Mao
- Department of Molecular, Cell and Cancer BiologyUniversity of Massachusetts Medical SchoolWorcesterMAUSA
| | - Lei Zhang
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of SciencesUniversity of Chinese Academy of SciencesShanghaiChina
- Sheng Yushou Center of Cell Biology and Immunology, School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghaiChina
- School of Life Science and TechnologyShanghaiTech UniversityShanghaiChina
| | - Fa‐Xing Yu
- Institute of PediatricsChildren's Hospital of Fudan UniversityShanghaiChina
- The Shanghai Key Laboratory of Medical Epigenetics, The International Co‐laboratory of Medical Epigenetics and Metabolism, The State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical CollegeFudan UniversityShanghaiChina
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9
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Bardwell AJ, Paul M, Yoneda KC, Andrade-Ludeña MD, Nguyen OT, Fruman DA, Bardwell L. The WW domain of IQGAP1 binds directly to the p110α catalytic subunit of PI 3-kinase. Biochem J 2023; 480:BCJ20220493. [PMID: 37145016 PMCID: PMC10625650 DOI: 10.1042/bcj20220493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 04/24/2023] [Accepted: 05/05/2023] [Indexed: 05/06/2023]
Abstract
IQGAP1 is a multi-domain cancer-associated protein that serves as a scaffold protein for multiple signaling pathways. Numerous binding partners have been found for the calponin homology, IQ and GAP-related domains in IQGAP1. Identification of a binding partner for its WW domain has proven elusive, however, even though a cell-penetrating peptide derived from this domain has marked anti-tumor activity. Here, using in vitro binding assays with human proteins and co-precipitation from human cells, we show that the WW domain of human IQGAP1 binds directly to the p110α catalytic subunit of phosphoinositide 3-kinase (PI3K). In contrast, the WW domain does not bind to ERK1/2, MEK1/2, or the p85α regulatory subunit of PI3K when p85α is expressed alone. However, the WW domain is able to bind to the p110α/p85α heterodimer when both subunits are co-expressed, as well as to the mutationally activated p110α/p65α heterodimer. We present a model of the structure of the IQGAP1 WW domain, and experimentally identify key residues in the hydrophobic core and beta strands of the WW domain that are required for binding to p110α. These findings contribute to a more precise understanding of IQGAP1-mediated scaffolding, and of how IQGAP1-derived therapeutic peptides might inhibit tumorigenesis.
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Affiliation(s)
- A. Jane Bardwell
- Department of Developmental and Cell Biology, University of California, Irvine, CA, U.S.A
| | - Madhuri Paul
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, U.S.A
| | - Kiku C. Yoneda
- Department of Developmental and Cell Biology, University of California, Irvine, CA, U.S.A
| | | | - Oanh T. Nguyen
- Department of Developmental and Cell Biology, University of California, Irvine, CA, U.S.A
| | - David A. Fruman
- Department of Molecular Biology and Biochemistry, University of California, Irvine, CA, U.S.A
| | - Lee Bardwell
- Department of Developmental and Cell Biology, University of California, Irvine, CA, U.S.A
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10
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Romero-Masters JC, Grace M, Lee D, Lei J, DePamphilis M, Buehler D, Hu R, Ward-Shaw E, Blaine-Sauer S, Lavoie N, White EA, Munger K, Lambert PF. MmuPV1 E7's interaction with PTPN14 delays Epithelial differentiation and contributes to virus-induced skin disease. PLoS Pathog 2023; 19:e1011215. [PMID: 37036883 PMCID: PMC10085053 DOI: 10.1371/journal.ppat.1011215] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 02/17/2023] [Indexed: 04/11/2023] Open
Abstract
Human papillomaviruses (HPVs) contribute to approximately 5% of all human cancers. Species-specific barriers limit the ability to study HPV pathogenesis in animal models. Murine papillomavirus (MmuPV1) provides a powerful tool to study the roles of papillomavirus genes in pathogenesis arising from a natural infection. We previously identified Protein Tyrosine Phosphatase Non-Receptor Type 14 (PTPN14), a tumor suppressor targeted by HPV E7 proteins, as a putative cellular target of MmuPV1 E7. Here, we confirmed the MmuPV1 E7-PTPN14 interaction. Based on the published structure of the HPV18 E7/PTPN14 complex, we generated a MmuPV1 E7 mutant, E7K81S, that was defective for binding PTPN14. Wild-type (WT) and E7K81S mutant viral genomes replicated as extrachromosomal circular DNAs to comparable levels in mouse keratinocytes. E7K81S mutant virus (E7K81S MmuPV1) was generated and used to infect FoxN/Nude mice. E7K81S MmuPV1 caused neoplastic lesions at a frequency similar to that of WT MmuPV1, but the lesions arose later and were smaller than WT-induced lesions. The E7K81S MmuPV1-induced lesions also had a trend towards a less severe grade of neoplastic disease. In the lesions, E7K81S MmuPV1 supported the late (productive) stage of the viral life cycle and promoted E2F activity and cellular DNA synthesis in suprabasal epithelial cells to similar degrees as WT MmuPV1. There was a similar frequency of lateral spread of infections among mice infected with E7K81S or WT MmuPV1. Compared to WT MmuPV1-induced lesions, E7K81S MmuPV1-induced lesions had a significant expansion of cells expressing differentiation markers, Keratin 10 and Involucrin. We conclude that an intact PTPN14 binding site is necessary for MmuPV1 E7's ability to contribute to papillomavirus-induced pathogenesis and this correlates with MmuPV1 E7 causing a delay in epithelial differentiation, which is a hallmark of papillomavirus-induced neoplasia.
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Affiliation(s)
- James C. Romero-Masters
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
| | - Miranda Grace
- Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Denis Lee
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
| | - Joshua Lei
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
| | - Melanie DePamphilis
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
| | - Darya Buehler
- Department of Pathology and Laboratory Medicine, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Rong Hu
- Department of Pathology and Laboratory Medicine, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin, United States of America
| | - Ella Ward-Shaw
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
| | - Simon Blaine-Sauer
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
| | - Nathalie Lavoie
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
- Molecular Microbiology Program, Graduate School of Biomedical Sciences, Tufts University, Boston, Massachusetts, United States of America
| | - Elizabeth A. White
- Department of Otorhinolaryngology, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Karl Munger
- Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
- Molecular Microbiology Program, Graduate School of Biomedical Sciences, Tufts University, Boston, Massachusetts, United States of America
| | - Paul F. Lambert
- McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America
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11
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Wenz MT, Bertazzon M, Sticht J, Aleksić S, Gjorgjevikj D, Freund C, Keller BG. Target Recognition in Tandem WW Domains: Complex Structures for Parallel and Antiparallel Ligand Orientation in h-FBP21 Tandem WW. J Chem Inf Model 2022; 62:6586-6601. [PMID: 35347992 DOI: 10.1021/acs.jcim.1c01426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Protein-protein interactions often rely on specialized recognition domains, such as WW domains, which bind to specific proline-rich sequences. The specificity of these protein-protein interactions can be increased by tandem repeats, i.e., two WW domains connected by a linker. With a flexible linker, the WW domains can move freely with respect to each other. Additionally, the tandem WW domains can bind in two different orientations to their target sequences. This makes the elucidation of complex structures of tandem WW domains extremely challenging. Here, we identify and characterize two complex structures of the tandem WW domain of human formin-binding protein 21 and a peptide sequence from its natural binding partner, the core-splicing protein SmB/B'. The two structures differ in the ligand orientation and, consequently, also in the relative orientation of the two WW domains. We analyze and probe the interactions in the complexes by molecular simulations and NMR experiments. The workflow to identify the complex structures uses molecular simulations, density-based clustering, and peptide docking. It is designed to systematically generate possible complex structures for repeats of recognition domains. These structures will help us to understand the synergistic and multivalency effects that generate the astonishing versatility and specificity of protein-protein interactions.
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Affiliation(s)
- Marius T Wenz
- Institute for Chemistry and Biochemistry, Molecular Dynamics Group, Freie Universität Berlin, Arnimallee 22, Berlin 14195, Germany
| | - Miriam Bertazzon
- Institute for Chemistry and Biochemistry, Protein Biochemistry Group, Freie Universität Berlin, Thielallee 63, Berlin 14195, Germany
| | - Jana Sticht
- Institute for Chemistry and Biochemistry, Protein Biochemistry Group, Freie Universität Berlin, Thielallee 63, Berlin 14195, Germany.,Core Facility BioSupraMol, Freie Universität Berlin, Takustrasse 3, Berlin 14195, Germany
| | - Stevan Aleksić
- Medicinal Chemistry, Boehringer Ingelheim Pharma GmbH & Co. KG, 88397 Biberach, Germany
| | - Daniela Gjorgjevikj
- Institute for Chemistry and Biochemistry, Protein Biochemistry Group, Freie Universität Berlin, Thielallee 63, Berlin 14195, Germany
| | - Christian Freund
- Institute for Chemistry and Biochemistry, Protein Biochemistry Group, Freie Universität Berlin, Thielallee 63, Berlin 14195, Germany
| | - Bettina G Keller
- Institute for Chemistry and Biochemistry, Molecular Dynamics Group, Freie Universität Berlin, Arnimallee 22, Berlin 14195, Germany
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12
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Stepan J, Heinz DE, Dethloff F, Bajaj T, Zellner A, Hafner K, Wiechmann S, Mackert S, Mecdad Y, Rabenstein M, Ebert T, Martinelli S, Häusl AS, Pöhlmann ML, Hermann A, Ma X, Pavenstädt H, Schmidt MV, Philipsen A, Turck CW, Deussing JM, Kuster B, Wehr MC, Stein V, Kremerskothen J, Wotjak CT, Gassen NC. Hippo-released WWC1 facilitates AMPA receptor regulatory complexes for hippocampal learning. Cell Rep 2022; 41:111766. [PMID: 36476872 DOI: 10.1016/j.celrep.2022.111766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 08/23/2022] [Accepted: 11/10/2022] [Indexed: 12/12/2022] Open
Abstract
Learning and memory rely on changes in postsynaptic glutamergic α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA)-type receptor (AMPAR) number, spatial organization, and function. The Hippo pathway component WW and C2 domain-containing protein 1 (WWC1) regulates AMPAR surface expression and impacts on memory performance. However, synaptic binding partners of WWC1 and its hierarchical position in AMPAR complexes are largely unclear. Using cell-surface proteomics in hippocampal tissue of Wwc1-deficient mice and by generating a hippocampus-specific interactome, we show that WWC1 is a major regulatory platform in AMPAR signaling networks. Under basal conditions, the Hippo pathway members WWC1 and large tumor-suppressor kinase (LATS) are associated, which might prevent WWC1 effects on synaptic proteins. Reduction of WWC1/LATS binding through a point mutation at WWC1 elevates the abundance of WWC1 in AMPAR complexes and improves hippocampal-dependent learning and memory. Thus, uncoupling of WWC1 from the Hippo pathway to AMPAR-regulatory complexes provides an innovative strategy to enhance synaptic transmission.
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Affiliation(s)
- Jens Stepan
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany; Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany; Department of Obstetrics and Gynecology, Paracelsus Medical University, 5020 Salzburg, Austria.
| | - Daniel E Heinz
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany; Research Group Neuronal Plasticity, Max Planck Institute of Psychiatry, 80804 Munich, Germany; Max Planck School of Cognition, 04103 Leipzig, Germany
| | - Frederik Dethloff
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany; Metabolomics Core Facility, Max Planck Institute for Biology of Ageing, 50931 Cologne, Germany
| | - Thomas Bajaj
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany
| | - Andreas Zellner
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany; Chair of Proteomics and Bioanalytics, Technical University of Munich, 85354 Freising, Germany
| | - Kathrin Hafner
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Svenja Wiechmann
- Chair of Proteomics and Bioanalytics, Technical University of Munich, 85354 Freising, Germany; German Cancer Consortium (DKTK), 80336 Munich, Germany; German Cancer Center (DKFZ), 69120 Heidelberg, Germany
| | - Sarah Mackert
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany
| | - Yara Mecdad
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany
| | - Michael Rabenstein
- Institute of Physiology II, University Hospital Bonn, 53115 Bonn, Germany
| | - Tim Ebert
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany; Research Group Neuronal Plasticity, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Silvia Martinelli
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Alexander S Häusl
- Department Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, 80804 Munich, Germany; Research Group Neurobiology of Stress Resilience, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Maximilian L Pöhlmann
- Department Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, 80804 Munich, Germany; Research Group Neurobiology of Stress Resilience, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Anke Hermann
- Department of Medicine D, Division of General Internal Medicine, Nephrology, and Rheumatology, University Hospital Münster, 48149 Münster, Germany
| | - Xiao Ma
- Research Group Signal Transduction, Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, 80336 Munich, Germany
| | - Hermann Pavenstädt
- Department of Medicine D, Division of General Internal Medicine, Nephrology, and Rheumatology, University Hospital Münster, 48149 Münster, Germany
| | - Mathias V Schmidt
- Department Stress Neurobiology and Neurogenetics, Max Planck Institute of Psychiatry, 80804 Munich, Germany; Research Group Neurobiology of Stress Resilience, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Alexandra Philipsen
- Clinic for Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany
| | - Chris W Turck
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Jan M Deussing
- Research Group Molecular Neurogenetics, Max Planck Institute of Psychiatry, 80804 Munich, Germany
| | - Bernhard Kuster
- Chair of Proteomics and Bioanalytics, Technical University of Munich, 85354 Freising, Germany; German Cancer Consortium (DKTK), 80336 Munich, Germany; German Cancer Center (DKFZ), 69120 Heidelberg, Germany; Bavarian Center for Biomolecular Mass Spectrometry, Technical University of Munich, 85354 Freising, Germany
| | - Michael C Wehr
- Research Group Signal Transduction, Department of Psychiatry and Psychotherapy, University Hospital, LMU Munich, 80336 Munich, Germany
| | - Valentin Stein
- Institute of Physiology II, University Hospital Bonn, 53115 Bonn, Germany
| | - Joachim Kremerskothen
- Department of Medicine D, Division of General Internal Medicine, Nephrology, and Rheumatology, University Hospital Münster, 48149 Münster, Germany
| | - Carsten T Wotjak
- Research Group Neuronal Plasticity, Max Planck Institute of Psychiatry, 80804 Munich, Germany; Central Nervous System Diseases Research, Boehringer-Ingelheim Pharma GmbH & Co KG, 88400 Biberach, Germany.
| | - Nils C Gassen
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804 Munich, Germany; Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University Hospital Bonn, 53127 Bonn, Germany.
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13
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Wang L, Choi K, Su T, Li B, Wu X, Zhang R, Driskill JH, Li H, Lei H, Guo P, Chen EH, Zheng Y, Pan D. Multiphase coalescence mediates Hippo pathway activation. Cell 2022; 185:4376-4393.e18. [PMID: 36318920 PMCID: PMC9669202 DOI: 10.1016/j.cell.2022.09.036] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 05/29/2022] [Accepted: 09/27/2022] [Indexed: 11/05/2022]
Abstract
The function of biomolecular condensates is often restricted by condensate dissolution. Whether condensates can be suppressed without condensate dissolution is unclear. Here, we show that upstream regulators of the Hippo signaling pathway form functionally antagonizing condensates, and their coalescence into a common phase provides a mode of counteracting the function of biomolecular condensates without condensate dissolution. Specifically, the negative regulator SLMAP forms Hippo-inactivating condensates to facilitate pathway inhibition by the STRIPAK complex. In response to cell-cell contact or osmotic stress, the positive regulators AMOT and KIBRA form Hippo-activating condensates to facilitate pathway activation. The functionally antagonizing SLMAP and AMOT/KIBRA condensates further coalesce into a common phase to inhibit STRIPAK function. These findings provide a paradigm for restricting the activity of biomolecular condensates without condensate dissolution, shed light on the molecular principles of multiphase organization, and offer a conceptual framework for understanding upstream regulation of the Hippo signaling pathway.
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Affiliation(s)
- Li Wang
- Department of Physiology, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Kyungsuk Choi
- Department of Physiology, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ting Su
- Department of Physiology, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Bing Li
- Department of Physiology, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xiaofeng Wu
- Department of Physiology, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ruihui Zhang
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jordan H Driskill
- Department of Physiology, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Hongde Li
- Department of Physiology, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Huiyan Lei
- Department of Physiology, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Pengfei Guo
- Department of Physiology, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Elizabeth H Chen
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yonggang Zheng
- Department of Physiology, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
| | - Duojia Pan
- Department of Physiology, Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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14
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Halpin JC, Whitney D, Rigoldi F, Sivaraman V, Singer A, Keating AE. Molecular determinants of TRAF6 binding specificity suggest that native interaction partners are not optimized for affinity. Protein Sci 2022; 31:e4429. [PMID: 36305766 PMCID: PMC9597381 DOI: 10.1002/pro.4429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/14/2022] [Accepted: 08/19/2022] [Indexed: 11/25/2022]
Abstract
TRAF6 is an adaptor protein involved in signaling pathways that are essential for development and the immune system. It participates in many protein-protein interactions, some of which are mediated by the C-terminal MATH domain, which binds to short peptide segments containing the motif PxExx[FYWHDE], where x is any amino acid. Blocking MATH domain interactions is associated with favorable effects in various disease models. To better define TRAF6 MATH domain binding preferences, we screened a combinatorial library using bacterial cell-surface peptide display. We identified 236 of the best TRAF6-interacting peptides and a set of 1,200 peptides that match the sequence PxE but do not bind TRAF6 MATH. The peptides that were most enriched in the screen bound TRAF6 tighter than previously measured native peptides. To better understand the structural basis for TRAF6 interaction preferences, we built all-atom structural models of the MATH domain in complex with high-affinity binders and nonbinders identified in the screen. We identified favorable interactions for motif features in binders as well as negative design elements distributed across the motif that can disfavor or preclude binding. Searching the human proteome revealed that the most biologically relevant TRAF6 motif matches occupy a different sequence space from the best hits discovered in combinatorial library screening, suggesting that native interactions are not optimized for affinity. Our experimentally determined binding preferences and structural models support the design of peptide-based interaction inhibitors with higher affinities than endogenous TRAF6 ligands.
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Affiliation(s)
| | | | | | | | | | - Amy E. Keating
- MIT Department of BiologyCambridgeMassachusettsUSA
- MIT Department of Biological EngineeringCambridgeMassachusettsUSA
- Koch Institute for Integrative Cancer ResearchCambridgeMassachusettsUSA
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15
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Koehler TJ, Tran T, Weingartner KA, Kavran JM. Kinetic Regulation of the Mammalian Sterile 20-like Kinase 2 (MST2). Biochemistry 2022; 61:1683-1693. [PMID: 35895874 PMCID: PMC10167949 DOI: 10.1021/acs.biochem.2c00022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Canonically, MST1/2 functions as a core kinase of the Hippo pathway and noncanonically during both apoptotic signaling and with RASSFs in T-cells. Faithful signal transduction by MST1/2 relies on both appropriate activation and regulated substrate phosphorylation by the activated kinase. Considerable progress has been made in understanding the molecular mechanisms regulating the activation of MST1/2 and identifying downstream signaling events. Here, we investigated the ability of MST2 to phosphorylate a peptide substrate and how that activity is regulated. Using a steady-state kinetic system, we parse the contribution of different factors to substrate phosphorylation, including the domains of MST2, phosphorylation, caspase cleavage, and complex formation. We found that in the unphosphorylated state, the SARAH domain stabilizes interactions with a peptide substrate and promotes turnover. Phosphorylation drives the activity of MST2, and once activated, MST2 is not further regulated by complex formation with other Hippo pathway components (SAV1, MOB1A, and RASSF5). We also show that the phosphorylated, caspase-cleaved MST2 is as active as the full-length one, suggesting that caspase-stimulated activity arises through noncatalytic mechanisms. The kinetic analysis presented here establishes a framework for interpreting how signaling events and post-translational modifications contribute to the signaling of MST2 in vivo.
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Affiliation(s)
- Thomas J Koehler
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205, United States
| | - Thao Tran
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205, United States
| | - Kyler A Weingartner
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205, United States
| | - Jennifer M Kavran
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205, United States.,Department of Biophysics and Biophysical Chemistry, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21205, United States.,Department of Oncology, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21205, United States
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16
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Rotem-Bamberger S, Fahoum J, Keinan-Adamsky K, Tsaban T, Avraham O, Shalev DE, Chill JH, Schueler-Furman O. Structural insights into the role of the WW2 domain on tandem WW/PPxY-motif interactions of oxidoreductase WWOX. J Biol Chem 2022; 298:102145. [PMID: 35716775 PMCID: PMC9293652 DOI: 10.1016/j.jbc.2022.102145] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 06/07/2022] [Accepted: 06/13/2022] [Indexed: 11/25/2022] Open
Abstract
Class I WW domains are present in many proteins of various functions and mediate protein interactions by binding to short linear PPxY motifs. Tandem WW domains often bind peptides with multiple PPxY motifs, but the interplay of WW–peptide interactions is not always intuitive. The WW domain–containing oxidoreductase (WWOX) harbors two WW domains: an unstable WW1 capable of PPxY binding and stable WW2 that cannot bind PPxY. The WW2 domain has been suggested to act as a WW1 domain chaperone, but the underlying mechanism of its chaperone activity remains to be revealed. Here, we combined NMR, isothermal calorimetry, and structural modeling to elucidate the roles of both WW domains in WWOX binding to its PPxY-containing substrate ErbB4. Using NMR, we identified an interaction surface between these two domains that supports a WWOX conformation compatible with peptide substrate binding. Isothermal calorimetry and NMR measurements also indicated that while binding affinity to a single PPxY motif is marginally increased in the presence of WW2, affinity to a dual-motif peptide increases 10-fold. Furthermore, we found WW2 can directly bind double-motif peptides using its canonical binding site. Finally, differential binding of peptides in mutagenesis experiments was consistent with a parallel N- to C-terminal PPxY tandem motif orientation in binding to the WW1–WW2 tandem domain, validating structural models of the interaction. Taken together, our results reveal the complex nature of tandem WW-domain organization and substrate binding, highlighting the contribution of WWOX WW2 to both protein stability and target binding.
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Affiliation(s)
- Shahar Rotem-Bamberger
- Department of Microbiology and Molecular Genetics, Faculty of Medicine, Institute of Medical Research Israel-Canada, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Jamal Fahoum
- Department of Microbiology and Molecular Genetics, Faculty of Medicine, Institute of Medical Research Israel-Canada, The Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Tomer Tsaban
- Department of Microbiology and Molecular Genetics, Faculty of Medicine, Institute of Medical Research Israel-Canada, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Orly Avraham
- Department of Microbiology and Molecular Genetics, Faculty of Medicine, Institute of Medical Research Israel-Canada, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Deborah E Shalev
- Wolfson Centre for Applied Structural Biology, Hebrew University of Jerusalem, Jerusalem, Israel; Department of Pharmaceutical Engineering, Azrieli College of Engineering, Jerusalem, Israel
| | - Jordan H Chill
- Department of Chemistry, Bar Ilan University, Ramat Gan, Israel.
| | - Ora Schueler-Furman
- Department of Microbiology and Molecular Genetics, Faculty of Medicine, Institute of Medical Research Israel-Canada, The Hebrew University of Jerusalem, Jerusalem, Israel.
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17
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Modulating binding affinity, specificity and configurations by multivalent interactions. Biophys J 2022; 121:1868-1880. [PMID: 35450827 DOI: 10.1016/j.bpj.2022.04.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 10/20/2021] [Accepted: 04/14/2022] [Indexed: 11/22/2022] Open
Abstract
Biological functions of proteins rely on their specific interactions with binding partners. Many proteins contain multiple domains, which can bind to their targets that often have more than one binding site, resulting in multivalent interactions. While it has been shown that multivalent interactions play an crucial role in modulating binding affinity and specificity, other potential effects of multivalent interactions are less explored. Here, we developed a broadly applicable transfer matrix formalism and used it to investigate the binding of two-domain ligands to targets with multiple binding sites. We show that 1) ligands with two specific binding domains can drastically boost both the binding affinity and specificity and down-shift the working concentration range, compared to single-domain ligands, 2) the presence of a positive domain-domain cooperativity or containing a non-specific binding domain can down-shift the working concentration range of ligands by increasing the binding affinity without compromising the binding specificity, 3) the configuration of the bound ligands has a strong concentration dependence, providing important insights into the physical origin of phase-separation processes taking place in living cells. In line with previous studies, our results suggest that multivalent interactions are utilized by cells for highly efficient regulation of target binding involved in a diverse range of cellular processes such as signal transduction, gene transcription, antibody-antigen recognition.
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18
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Biel A, Castanza AS, Rutherford R, Fair SR, Chifamba L, Wester JC, Hester ME, Hevner RF. AUTS2 Syndrome: Molecular Mechanisms and Model Systems. Front Mol Neurosci 2022; 15:858582. [PMID: 35431798 PMCID: PMC9008325 DOI: 10.3389/fnmol.2022.858582] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/01/2022] [Indexed: 01/16/2023] Open
Abstract
AUTS2 syndrome is a genetic disorder that causes intellectual disability, microcephaly, and other phenotypes. Syndrome severity is worse when mutations involve 3' regions (exons 9-19) of the AUTS2 gene. Human AUTS2 protein has two major isoforms, full-length (1259 aa) and C-terminal (711 aa), the latter produced from an alternative transcription start site in exon 9. Structurally, AUTS2 contains the putative "AUTS2 domain" (∼200 aa) conserved among AUTS2 and its ohnologs, fibrosin, and fibrosin-like-1. Also, AUTS2 contains extensive low-complexity sequences and intrinsically disordered regions, features typical of RNA-binding proteins. During development, AUTS2 is expressed by specific progenitor cell and neuron types, including pyramidal neurons and Purkinje cells. AUTS2 localizes mainly in cell nuclei, where it regulates transcription and RNA metabolism. Some studies have detected AUTS2 in neurites, where it may regulate cytoskeletal dynamics. Neurodevelopmental functions of AUTS2 have been studied in diverse model systems. In zebrafish, auts2a morphants displayed microcephaly. In mice, excision of different Auts2 exons (7, 8, or 15) caused distinct phenotypes, variously including neonatal breathing abnormalities, cerebellar hypoplasia, dentate gyrus hypoplasia, EEG abnormalities, and behavioral changes. In mouse embryonic stem cells, AUTS2 could promote or delay neuronal differentiation. Cerebral organoids, derived from an AUTS2 syndrome patient containing a pathogenic missense variant in exon 9, exhibited neocortical growth defects. Emerging technologies for analysis of human cerebral organoids will be increasingly useful for understanding mechanisms underlying AUTS2 syndrome. Questions for future research include whether AUTS2 binds RNA directly, how AUTS2 regulates neurogenesis, and how AUTS2 modulates neural circuit formation.
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Affiliation(s)
- Alecia Biel
- The Steve and Cindy Rasmussen Institute for Genomic Medicine, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, United States
| | - Anthony S. Castanza
- Department of Pathology, University of California, San Diego, San Diego, CA, United States
| | - Ryan Rutherford
- The Steve and Cindy Rasmussen Institute for Genomic Medicine, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, United States
| | - Summer R. Fair
- The Steve and Cindy Rasmussen Institute for Genomic Medicine, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, United States
| | - Lincoln Chifamba
- The Steve and Cindy Rasmussen Institute for Genomic Medicine, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, United States
| | - Jason C. Wester
- Department of Neuroscience, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Mark E. Hester
- The Steve and Cindy Rasmussen Institute for Genomic Medicine, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, OH, United States
- Department of Neuroscience, The Ohio State University College of Medicine, Columbus, OH, United States
- Department of Pediatrics, The Ohio State University College of Medicine, Columbus, OH, United States
| | - Robert F. Hevner
- Department of Pathology, University of California, San Diego, San Diego, CA, United States
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19
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Dai J, Cimino PJ, Gouin KH, Grzelak CA, Barrett A, Lim AR, Long A, Weaver S, Saldin LT, Uzamere A, Schulte V, Clegg N, Pisarsky L, Lyden D, Bissell MJ, Knott S, Welm AL, Bielas JH, Hansen KC, Winkler F, Holland EC, Ghajar CM. Astrocytic laminin-211 drives disseminated breast tumor cell dormancy in brain. NATURE CANCER 2022; 3:25-42. [PMID: 35121993 PMCID: PMC9469899 DOI: 10.1038/s43018-021-00297-3] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 10/27/2021] [Indexed: 02/08/2023]
Abstract
Although dormancy is thought to play a key role in the metastasis of breast tumor cells to the brain, our knowledge of the molecular mechanisms regulating disseminated tumor cell (DTC) dormancy in this organ is limited. Here using serial intravital imaging of dormant and metastatic triple-negative breast cancer lines, we identify escape from the single-cell or micrometastatic state as the rate-limiting step towards brain metastasis. We show that every DTC occupies a vascular niche, with quiescent DTCs residing on astrocyte endfeet. At these sites, astrocyte-deposited laminin-211 drives DTC quiescence by inducing the dystroglycan receptor to associate with yes-associated protein, thereby sequestering it from the nucleus and preventing its prometastatic functions. These findings identify a brain-specific mechanism of DTC dormancy and highlight the need for a more thorough understanding of tumor dormancy to develop therapeutic approaches that prevent brain metastasis.
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Affiliation(s)
- Jinxiang Dai
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.
| | - Patrick J. Cimino
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA (USA)
| | - Kenneth H. Gouin
- Department of Biomedical Sciences; Applied Genomics, Computation and Translational Core, Cedars-Sinai Medical Center, Los Angeles, CA (USA)
| | - Candice A. Grzelak
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA (USA)
| | - Alexander Barrett
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO (USA)
| | - Andrea R. Lim
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA (USA),Graduate Program in Molecular and Cellular Biology, University of Washington, Seattle, WA (USA)
| | - Annalyssa Long
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA (USA)
| | - Stephanie Weaver
- Experimental Histopathology Core, Fred Hutchinson Cancer Research Center, Seattle, WA (USA)
| | - Lindsey T. Saldin
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA (USA)
| | - Aiyedun Uzamere
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA (USA)
| | - Vera Schulte
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA (USA)
| | - Nigel Clegg
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA (USA)
| | - Laura Pisarsky
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA (USA)
| | - David Lyden
- Children’s Cancer and Blood Foundation Laboratories, Departments of Pediatrics, and Cell and Developmental Biology, Drukier Institute for Children’s Health, Meyer Cancer Center, Weill Cornell Medicine, New York, NY, (USA)
| | - Mina J. Bissell
- Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA (USA)
| | - Simon Knott
- Department of Biomedical Sciences; Applied Genomics, Computation and Translational Core, Cedars-Sinai Medical Center, Los Angeles, CA (USA)
| | - Alana L. Welm
- Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT (USA)
| | - Jason H. Bielas
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA (USA),Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA (USA),Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, WA (USA)
| | - Kirk C. Hansen
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO (USA)
| | - Frank Winkler
- Neurology Clinic and National Center for Tumour Diseases, University Hospital Heidelberg, DKTK & Clinical Cooperation Unit Neurooncology, German Cancer Research Center, Heidelberg (Germany)
| | - Eric C. Holland
- Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, WA (USA)
| | - Cyrus M. Ghajar
- Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA (USA),Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, WA (USA),To whom correspondence should be addressed: Cyrus M. Ghajar, PhD, Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue N., M5-A864, Seattle, WA 98109 (USA), , P. 206.667.7080, F. 206.667.2537, Jinxiang Dai, PhD, Public Health Sciences Division/Translational Research Program, Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue N., M5-A864, Seattle, WA 98109 (USA), , P. 206.667.7082, F. 206.667.2537
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20
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Liu S, Aldinger KA, Cheng CV, Kiyama T, Dave M, McNamara HK, Zhao W, Stafford JM, Descostes N, Lee P, Caraffi SG, Ivanovski I, Errichiello E, Zweier C, Zuffardi O, Schneider M, Papavasiliou AS, Perry MS, Humberson J, Cho MT, Weber A, Swale A, Badea TC, Mao CA, Garavelli L, Dobyns WB, Reinberg D. NRF1 association with AUTS2-Polycomb mediates specific gene activation in the brain. Mol Cell 2021; 81:4663-4676.e8. [PMID: 34637754 PMCID: PMC8604784 DOI: 10.1016/j.molcel.2021.09.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 07/21/2021] [Accepted: 09/15/2021] [Indexed: 12/17/2022]
Abstract
The heterogeneous family of complexes comprising Polycomb repressive complex 1 (PRC1) is instrumental for establishing facultative heterochromatin that is repressive to transcription. However, two PRC1 species, ncPRC1.3 and ncPRC1.5, are known to comprise novel components, AUTS2, P300, and CK2, that convert this repressive function to that of transcription activation. Here, we report that individuals harboring mutations in the HX repeat domain of AUTS2 exhibit defects in AUTS2 and P300 interaction as well as a developmental disorder reflective of Rubinstein-Taybi syndrome, which is mainly associated with a heterozygous pathogenic variant in CREBBP/EP300. Moreover, the absence of AUTS2 or mutation in its HX repeat domain gives rise to misregulation of a subset of developmental genes and curtails motor neuron differentiation of mouse embryonic stem cells. The transcription factor nuclear respiratory factor 1 (NRF1) has a novel and integral role in this neurodevelopmental process, being required for ncPRC1.3 recruitment to chromatin.
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Affiliation(s)
- Sanxiong Liu
- Department of Biochemistry and Molecular Pharmacology, New York University Langone School of Medicine, New York, NY 10016, USA; Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Kimberly A Aldinger
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Chi Vicky Cheng
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Takae Kiyama
- Ruiz Department of Ophthalmology and Visual Science, McGovern Medical School at The University of Texas Health Science Center at Houston (UTHealth), Houston, TX 77030, USA; National Eye Institute, NIH, Bethesda, MD 20892, USA
| | - Mitali Dave
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Hanna K McNamara
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Wukui Zhao
- Department of Biochemistry and Molecular Pharmacology, New York University Langone School of Medicine, New York, NY 10016, USA
| | - James M Stafford
- Department of Biochemistry and Molecular Pharmacology, New York University Langone School of Medicine, New York, NY 10016, USA; Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Nicolas Descostes
- Department of Biochemistry and Molecular Pharmacology, New York University Langone School of Medicine, New York, NY 10016, USA; Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Pedro Lee
- Department of Biochemistry and Molecular Pharmacology, New York University Langone School of Medicine, New York, NY 10016, USA; Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Stefano G Caraffi
- Struttura Semplice Dipartimentale di Genetica Medica, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Ivan Ivanovski
- Struttura Semplice Dipartimentale di Genetica Medica, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy; Institute of Medical Genetics, University of Zürich, Zürich, Switzerland
| | - Edoardo Errichiello
- Dipartimento di Medicina Molecolare, Università di Pavia, Pavia, Italy; IRCCS Mondino Foundation, Pavia, Italy
| | - Christiane Zweier
- Institute of Human Genetics, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Schwabachanlage 10, 91054 Erlangen, Germany; Department of Human Genetics, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Orsetta Zuffardi
- Dipartimento di Medicina Molecolare, Università di Pavia, Pavia, Italy
| | - Michael Schneider
- Carle Physicians Group, Section of Neurology, St. Christopher's Hospital for Children, Urbana, IL, USA
| | | | - M Scott Perry
- Comprehensive Epilepsy Program, Jane and John Justin Neuroscience Center, Cook Children's Medical Center, Fort Worth, TX 76104, USA
| | - Jennifer Humberson
- Division of Genetics, Department of Pediatrics, University of Virginia Children's Hospital, Charlottesville, VA, USA
| | | | | | - Andrew Swale
- Liverpool Women's Hospital, Liverpool, UK; Manchester Centre for Genomic Medicine, Manchester, UK
| | - Tudor C Badea
- National Eye Institute, NIH, Bethesda, MD 20892, USA; Research and Development Institute, Transilvania University of Brasov, School of Medicine, Brasov, Romania
| | - Chai-An Mao
- Ruiz Department of Ophthalmology and Visual Science, McGovern Medical School at The University of Texas Health Science Center at Houston (UTHealth), Houston, TX 77030, USA; National Eye Institute, NIH, Bethesda, MD 20892, USA
| | - Livia Garavelli
- Struttura Semplice Dipartimentale di Genetica Medica, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - William B Dobyns
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA; Department of Pediatrics (Genetic Medicine), University of Washington, Seattle, WA, USA
| | - Danny Reinberg
- Department of Biochemistry and Molecular Pharmacology, New York University Langone School of Medicine, New York, NY 10016, USA; Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA.
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21
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Lim YX, Lin H, Seah SH, Lim YP. Reciprocal Regulation of Hippo and WBP2 Signalling-Implications in Cancer Therapy. Cells 2021; 10:cells10113130. [PMID: 34831354 PMCID: PMC8625973 DOI: 10.3390/cells10113130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/08/2021] [Accepted: 11/08/2021] [Indexed: 11/23/2022] Open
Abstract
Cancer is a global health problem. The delineation of molecular mechanisms pertinent to cancer initiation and development has spurred cancer therapy in the form of precision medicine. The Hippo signalling pathway is a tumour suppressor pathway implicated in a multitude of cancers. Elucidation of the Hippo pathway has revealed an increasing number of regulators that are implicated, some being potential therapeutic targets for cancer interventions. WW domain-binding protein 2 (WBP2) is an oncogenic transcriptional co-factor that interacts, amongst others, with two other transcriptional co-activators, YAP and TAZ, in the Hippo pathway. WBP2 was recently discovered to modulate the upstream Hippo signalling components by associating with LATS2 and WWC3. Exacerbating the complexity of the WBP2/Hippo network, WBP2 itself is reciprocally regulated by Hippo-mediated microRNA biogenesis, contributing to a positive feedback loop that further drives carcinogenesis. Here, we summarise the biological mechanisms of WBP2/Hippo reciprocal regulation and propose therapeutic strategies to overcome Hippo defects in cancers through targeting WBP2.
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Affiliation(s)
- Yvonne Xinyi Lim
- Integrative Sciences and Engineering Programme, National University of Singapore, Singapore 119077, Singapore; (Y.X.L.); (H.L.); (S.H.S.)
- Department of Biochemistry, National University of Singapore, Singapore 117596, Singapore
| | - Hexian Lin
- Integrative Sciences and Engineering Programme, National University of Singapore, Singapore 119077, Singapore; (Y.X.L.); (H.L.); (S.H.S.)
- Department of Biochemistry, National University of Singapore, Singapore 117596, Singapore
| | - Sock Hong Seah
- Integrative Sciences and Engineering Programme, National University of Singapore, Singapore 119077, Singapore; (Y.X.L.); (H.L.); (S.H.S.)
- Mechanobiology Institute, National University of Singapore, Singapore 117411, Singapore
| | - Yoon Pin Lim
- Department of Biochemistry, National University of Singapore, Singapore 117596, Singapore
- Correspondence:
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22
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The Multiple Interactions of RUNX with the Hippo-YAP Pathway. Cells 2021; 10:cells10112925. [PMID: 34831147 PMCID: PMC8616315 DOI: 10.3390/cells10112925] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/22/2021] [Accepted: 10/26/2021] [Indexed: 01/04/2023] Open
Abstract
The Hippo–YAP signaling pathway serves roles in cell proliferation, stem cell renewal/maintenance, differentiation and apoptosis. Many of its functions are central to early development, adult tissue repair/regeneration and not surprisingly, tumorigenesis and metastasis. The Hippo pathway represses the activity of YAP and paralog TAZ by modulating cell proliferation and promoting differentiation to maintain tissue homeostasis and proper organ size. Similarly, master regulators of development RUNX transcription factors have been shown to play critical roles in proliferation, differentiation, apoptosis and cell fate determination. In this review, we discuss the multiple interactions of RUNX with the Hippo–YAP pathway, their shared collaborators in Wnt, TGFβ, MYC and RB pathways, and their overlapping functions in development and tumorigenesis.
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23
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Kotelevets L, Chastre E. A New Story of the Three Magi: Scaffolding Proteins and lncRNA Suppressors of Cancer. Cancers (Basel) 2021; 13:4264. [PMID: 34503076 PMCID: PMC8428372 DOI: 10.3390/cancers13174264] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 08/17/2021] [Accepted: 08/20/2021] [Indexed: 12/16/2022] Open
Abstract
Scaffolding molecules exert a critical role in orchestrating cellular response through the spatiotemporal assembly of effector proteins as signalosomes. By increasing the efficiency and selectivity of intracellular signaling, these molecules can exert (anti/pro)oncogenic activities. As an archetype of scaffolding proteins with tumor suppressor property, the present review focuses on MAGI1, 2, and 3 (membrane-associated guanylate kinase inverted), a subgroup of the MAGUK protein family, that mediate networks involving receptors, junctional complexes, signaling molecules, and the cytoskeleton. MAGI1, 2, and 3 are comprised of 6 PDZ domains, 2 WW domains, and 1 GUK domain. These 9 protein binding modules allow selective interactions with a wide range of effectors, including the PTEN tumor suppressor, the β-catenin and YAP1 proto-oncogenes, and the regulation of the PI3K/AKT, the Wnt, and the Hippo signaling pathways. The frequent downmodulation of MAGIs in various human malignancies makes these scaffolding molecules and their ligands putative therapeutic targets. Interestingly, MAGI1 and MAGI2 genetic loci generate a series of long non-coding RNAs that act as a tumor promoter or suppressor in a tissue-dependent manner, by selectively sponging some miRNAs or by regulating epigenetic processes. Here, we discuss the different paths followed by the three MAGIs to control carcinogenesis.
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Affiliation(s)
- Larissa Kotelevets
- Sorbonne Université, INSERM, UMR_S938, Centre de Recherche Saint-Antoine (CRSA), 75012 Paris, France
| | - Eric Chastre
- Sorbonne Université, INSERM, UMR_S938, Centre de Recherche Saint-Antoine (CRSA), 75012 Paris, France
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24
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Zhang H, Lin L, Liu J, Pan L, Lin Z, Zhang M, Zhang J, Cao Y, Zhu J, Zhang R. Phase Separation of MAGI2-Mediated Complex Underlies Formation of Slit Diaphragm Complex in Glomerular Filtration Barrier. J Am Soc Nephrol 2021; 32:1946-1960. [PMID: 34330769 PMCID: PMC8455267 DOI: 10.1681/asn.2020111590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/22/2021] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Slit diaphragm is a specialized adhesion junction between the opposing podocytes, establishing the final filtration barrier to urinary protein loss. At the cytoplasmic insertion site of each slit diaphragm there is an electron-dense and protein-rich cellular compartment that is essential for slit diaphragm integrity and signal transduction. Mutations in genes that encode components of this membrane-less compartment have been associated with glomerular diseases. However, the molecular mechanism governing formation of compartmentalized slit diaphragm assembly remains elusive. METHODS We systematically investigated the interactions between key components at slit diaphragm, such as MAGI2, Dendrin, and CD2AP, through a combination of biochemical, biophysical, and cell biologic approaches. RESULTS We demonstrated that MAGI2, a unique MAGUK family scaffold protein at slit diaphragm, can autonomously undergo liquid-liquid phase separation. Multivalent interactions among the MAGI2-Dendrin-CD2AP complex drive the formation of the highly dense slit diaphragm condensates at physiologic conditions. The reconstituted slit diaphragm condensates can effectively recruit Nephrin. A nephrotic syndrome-associated mutation of MAGI2 interfered with formation of the slit diaphragm condensates, thus leading to impaired enrichment of Nephrin. CONCLUSIONS Key components at slit diaphragm (e.g., MAGI2 and its complex) can spontaneously undergo phase separation. The reconstituted slit diaphragm condensates can be enriched in adhesion molecules and cytoskeletal adaptor proteins. Therefore, the electron-dense slit diaphragm assembly might form via phase separation of core components of the slit diaphragm in podocytes.
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Affiliation(s)
- Haijiao Zhang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Lin Lin
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
| | - Jianping Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Lifeng Pan
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Zhijie Lin
- Division of Life Science, State Key Laboratory of Molecular Neuroscience, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Mingjie Zhang
- Division of Life Science, State Key Laboratory of Molecular Neuroscience, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China,School of Life Sciences, Southern University of Science and Technology, Shenzhen, China
| | - Jiong Zhang
- School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Ying Cao
- School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Jinwei Zhu
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Ministry of Education, Shanghai Jiao Tong University, Shanghai, China
| | - Rongguang Zhang
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
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25
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Rheinemann L, Thompson T, Mercenne G, Paine EL, Peterson FC, Volkman BF, Alam SL, Alian A, Sundquist WI. Interactions between AMOT PPxY motifs and NEDD4L WW domains function in HIV-1 release. J Biol Chem 2021; 297:100975. [PMID: 34284061 PMCID: PMC8368996 DOI: 10.1016/j.jbc.2021.100975] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 06/23/2021] [Accepted: 07/15/2021] [Indexed: 12/03/2022] Open
Abstract
Like most enveloped viruses, HIV must acquire a lipid membrane as it assembles and buds through the plasma membrane of infected cells to spread infection. Several sets of host cell machinery facilitate this process, including proteins of the endosomal sorting complexes required for transport pathway, which mediates the membrane fission reaction required to complete viral budding, as well as angiomotin (AMOT) and NEDD4L, which bind one another and promote virion membrane envelopment. AMOT and NEDD4L interact through the four NEDD4L WW domains and three different AMOT Pro-Pro-x (any amino acid)-Tyr (PPxY) motifs, but these interactions are not yet well defined. Here, we report that individual AMOT PPxY and NEDD4L WW domains interact with the following general affinity hierarchies: AMOT PPxY1>PPxY2>PPxY3 and NEDD4L WW3>WW2>WW1∼WW4. The unusually high-affinity of the AMOT PPxY1–NEDD4L WW3 interaction accounts for most of the AMOT–NEDD4L binding and is critical for stimulating HIV-1 release. Comparative structural, binding, and virological analyses reveal that complementary ionic and hydrophobic contacts on both sides of the WW–PPxY core interaction account for the unusually high affinity of the AMOT PPxY1–NEDD4L WW3 interaction. Taken together, our studies reveal how the first AMOT PPxY1 motif binds the third NEDD4L WW domain to stimulate HIV-1 viral envelopment and promote infectivity.
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Affiliation(s)
- Lara Rheinemann
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Tuscan Thompson
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Gaelle Mercenne
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Elliott L Paine
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Francis C Peterson
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Brian F Volkman
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Steven L Alam
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, Utah, USA.
| | - Akram Alian
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, Utah, USA.
| | - Wesley I Sundquist
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, Utah, USA.
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26
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A WW Tandem-Mediated Dimerization Mode of SAV1 Essential for Hippo Signaling. Cell Rep 2021; 32:108118. [PMID: 32905778 PMCID: PMC7494017 DOI: 10.1016/j.celrep.2020.108118] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 06/27/2020] [Accepted: 08/17/2020] [Indexed: 12/11/2022] Open
Abstract
The canonical mammalian Hippo pathway contains a core kinase signaling cascade requiring upstream MST to form a stable complex with SAV1 in order to phosphorylate the downstream LATS/MOB complex. Though SAV1 dimerization is essential for the trans-activation of MST, the molecular mechanism underlying SAV1 dimerization is unclear. Here, we discover that the SAV1 WW tandem containing a short Pro-rich extension immediately following the WW tandem (termed as "WW12ex") forms a highly stable homodimer. The crystal structure of SAV1 WW12ex reveals that the Pro-rich extension of one subunit binds to both WW domains from the other subunit. Thus, SAV1 WW12ex forms a domain-swapped dimer instead of a WW2 homodimerization-mediated dimer. The WW12ex-mediated dimerization of SAV1 is required for the MST/SAV1 complex assembly and MST kinase activation. Finally, we show that several cancer-related SAV1 variants disrupt SAV1 dimer formation, and thus, these mutations may impair the tumor-suppression activity of SAV1.
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27
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Molecular Interactions between Two LMP2A PY Motifs of EBV and WW Domains of E3 Ubiquitin Ligase AIP4. Life (Basel) 2021; 11:life11050379. [PMID: 33922228 PMCID: PMC8190631 DOI: 10.3390/life11050379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 12/15/2022] Open
Abstract
Interactions involving Epstein–Barr virus (EBV) LMP2A and Nedd4 family E3 ubiquitin–protein ligases promote the ubiquitination of LMP2A-associated proteins, which results in the perturbation of normal B-cell signaling. Here, we solved the solution structure of the WW2 domain of hAIP4 and investigated the binding mode involving the N-terminal domain of LMP2A and the WW2 domain. The WW2 domain presented a conserved WW domain scaffold with a three-stranded anti-parallel β-sheet and bound two PY motifs via different binding mechanisms. Our NMR titration and ITC data demonstrated that the PY motifs of LMP2A can recognize and interact weakly with the XP groove of the WW2 domain (residues located around the third β-strand), and then residues between two PY motifs optimize the binding by interacting with the loop 1 region of the WW2 domain. In particular, the residue Val15 in the hairpin loop region between β1 and β2 of the WW2 domain exhibited unique changes depending on the terminal residues of the PY motif. This result suggested that the hairpin loop is responsible for additional interactions outside the XP groove, and this hypothesis was confirmed in a deuterium exchange experiment. These weak but wide interactions can stabilize the complex formed between the PY and WW domains.
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28
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Vrbský J, Vinarský V, Perestrelo AR, De La Cruz JO, Martino F, Pompeiano A, Izzi V, Hlinomaz O, Rotrekl V, Sudol M, Pagliari S, Forte G. Evidence for discrete modes of YAP1 signaling via mRNA splice isoforms in development and diseases. Genomics 2021; 113:1349-1365. [PMID: 33713822 DOI: 10.1016/j.ygeno.2021.03.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 02/10/2021] [Accepted: 03/05/2021] [Indexed: 01/02/2023]
Abstract
Yes-associated protein 1 (YAP1) is a transcriptional co-activator downstream of Hippo pathway. The pathway exerts crucial roles in organogenesis and its dysregulation is associated with the spreading of different cancer types. YAP1 gene encodes for multiple protein isoforms, whose specific functions are not well defined. We demonstrate the splicing of isoform-specific mRNAs is controlled in a stage- and tissue-specific fashion. We designed expression vectors encoding for the most-represented isoforms of YAP1 with either one or two WW domains and studied their specific signaling activities in YAP1 knock-out cell lines. YAP1 isoforms display both common and unique functions and activate distinct transcriptional programs, as the result of their unique protein interactomes. By generating TEAD-based transcriptional reporter cell lines, we demonstrate individual YAP1 isoforms display unique effects on cell proliferation and differentiation. Finally, we illustrate the complexity of the regulation of Hippo-YAP1 effector in physiological and in pathological conditions of the heart.
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Affiliation(s)
- Jan Vrbský
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic.
| | - Vladimir Vinarský
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic; Competence Center for Mechanobiology in Regenerative Medicine, INTERREG ATCZ133, CZ-62500 Brno, Czech Republic
| | - Ana Rubina Perestrelo
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic
| | - Jorge Oliver De La Cruz
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic; Competence Center for Mechanobiology in Regenerative Medicine, INTERREG ATCZ133, CZ-62500 Brno, Czech Republic
| | - Fabiana Martino
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic; Competence Center for Mechanobiology in Regenerative Medicine, INTERREG ATCZ133, CZ-62500 Brno, Czech Republic; Department of Biology, Masaryk University, CZ-62500 Brno, Czech Republic
| | - Antonio Pompeiano
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic
| | - Valerio Izzi
- University of Oulu, FI-90014 Oulu, Finland; Finnish Cancer Institute, 00130 Helsinki, Finland
| | - Ota Hlinomaz
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic
| | - Vladimir Rotrekl
- Department of Biology, Masaryk University, CZ-62500 Brno, Czech Republic
| | - Marius Sudol
- Department of Physiology, Yong Loo Li School of Medicine, Block MD9, 2 Medical Drive #04-01, 117597, Singapore; Mechanobiology Institute, T-Lab, 5A Engineering Drive 1, 117411, Singapore; Department of Medicine, Icahn School of Medicine at Mount Sinai, NY, New York 10029, United States of America
| | - Stefania Pagliari
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic
| | - Giancarlo Forte
- International Clinical Research Center (ICRC), St Anne's University Hospital, CZ-65691 Brno, Czech Republic; Competence Center for Mechanobiology in Regenerative Medicine, INTERREG ATCZ133, CZ-62500 Brno, Czech Republic.
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29
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Wen Z, Wang Y, Qi S, Ma M, Li J, Yu FX. Regulation of TP73 transcription by Hippo-YAP signaling. Biochem Biophys Res Commun 2020; 531:96-104. [PMID: 32773110 DOI: 10.1016/j.bbrc.2020.07.132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 11/19/2022]
Abstract
Yes-associated protein (YAP) is a key downstream effector of the highly conserved Hippo signaling pathway, which regulates organ size, regeneration and tumorigenesis. Known classically to function as a transcriptional co-activator, YAP interacts with TEA domain transcription factors (TEAD1-4) to induce expression of target genes. However, a number of genes are repressed upon YAP activation, suggesting a transcriptional repressor role of YAP. Here, we report that TP73 is a direct target gene of YAP, and its transcription is repressed by YAP in a TEAD-independent manner. On the other hand, WW domains of YAP are indispensable for the regulation of TP73 expression, which may recruit YAP to TP73 gene though interaction with ZEB1 and/or RUNX2, two transcriptional repressors. Moreover, YAP-mediated repression of TP73 promotes cancer cell survival in the presence of chemotherapeutic agents, suggesting YAP-TP73 signaling as a mechanism for cancer cell resistance to chemotherapies.
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Affiliation(s)
- Zichao Wen
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yu Wang
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Sixian Qi
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Mingyue Ma
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jian Li
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Fa-Xing Yu
- Institute of Pediatrics, Children's Hospital of Fudan University and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, Ministry of Science and Technology, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China.
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30
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A Conserved Amino Acid in the C Terminus of Human Papillomavirus E7 Mediates Binding to PTPN14 and Repression of Epithelial Differentiation. J Virol 2020; 94:JVI.01024-20. [PMID: 32581101 DOI: 10.1128/jvi.01024-20] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 06/08/2020] [Indexed: 12/24/2022] Open
Abstract
The human papillomavirus (HPV) E7 oncoprotein is a primary driver of HPV-mediated carcinogenesis. The E7 proteins from diverse HPVs bind to the host cellular nonreceptor protein tyrosine phosphatase type 14 (PTPN14) and direct it for degradation through the activity of the E7-associated host E3 ubiquitin ligase UBR4. Here, we show that a highly conserved arginine residue in the C-terminal domain of diverse HPV E7 mediates the interaction with PTPN14. We found that disruption of PTPN14 binding through mutation of the C-terminal arginine did not impact the ability of several high-risk HPV E7 proteins to bind and degrade the retinoblastoma tumor suppressor or activate E2F target gene expression. HPVs infect human keratinocytes, and we previously reported that both PTPN14 degradation by HPV16 E7 and PTPN14 CRISPR knockout repress keratinocyte differentiation-related genes. Now, we have found that blocking PTPN14 binding through mutation of the conserved C-terminal arginine rendered both HPV16 and HPV18 E7 unable to repress differentiation-related gene expression. We then confirmed that the HPV18 E7 variant that could not bind PTPN14 was also impaired in repressing differentiation when expressed from the complete HPV18 genome. Finally, we found that the ability of HPV18 E7 to extend the life span of primary human keratinocytes required PTPN14 binding. CRISPR/Cas9 knockout of PTPN14 rescued keratinocyte life span extension in the presence of the PTPN14 binding-deficient HPV18 E7 variant. These results support the model that PTPN14 degradation by high-risk HPV E7 leads to repression of differentiation and contributes to its carcinogenic activity.IMPORTANCE The E7 oncoprotein is a primary driver of HPV-mediated carcinogenesis. HPV E7 binds the putative tumor suppressor PTPN14 and targets it for degradation using the ubiquitin ligase UBR4. PTPN14 binds to a C-terminal arginine highly conserved in diverse HPV E7. Our previous efforts to understand how PTPN14 degradation contributes to the carcinogenic activity of high-risk HPV E7 used variants of E7 unable to bind to UBR4. Now, by directly manipulating E7 binding to PTPN14 and using a PTPN14 knockout rescue experiment, we demonstrate that the degradation of PTPN14 is required for high-risk HPV18 E7 to extend keratinocyte life span. Our data show that PTPN14 binding by HPV16 E7 and HPV18 E7 represses keratinocyte differentiation. HPV-positive cancers are frequently poorly differentiated, and the HPV life cycle depends upon keratinocyte differentiation. The finding that PTPN14 binding by HPV E7 impairs differentiation has significant implications for HPV-mediated carcinogenesis and the HPV life cycle.
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31
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Yatsenko AS, Kucherenko MM, Xie Y, Aweida D, Urlaub H, Scheibe RJ, Cohen S, Shcherbata HR. Profiling of the muscle-specific dystroglycan interactome reveals the role of Hippo signaling in muscular dystrophy and age-dependent muscle atrophy. BMC Med 2020; 18:8. [PMID: 31959160 PMCID: PMC6971923 DOI: 10.1186/s12916-019-1478-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 12/05/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Dystroglycanopathies are a group of inherited disorders characterized by vast clinical and genetic heterogeneity and caused by abnormal functioning of the ECM receptor dystroglycan (Dg). Remarkably, among many cases of diagnosed dystroglycanopathies, only a small fraction can be linked directly to mutations in Dg or its regulatory enzymes, implying the involvement of other, not-yet-characterized, Dg-regulating factors. To advance disease diagnostics and develop new treatment strategies, new approaches to find dystroglycanopathy-related factors should be considered. The Dg complex is highly evolutionarily conserved; therefore, model genetic organisms provide excellent systems to address this challenge. In particular, Drosophila is amenable to experiments not feasible in any other system, allowing original insights about the functional interactors of the Dg complex. METHODS To identify new players contributing to dystroglycanopathies, we used Drosophila as a genetic muscular dystrophy model. Using mass spectrometry, we searched for muscle-specific Dg interactors. Next, in silico analyses allowed us to determine their association with diseases and pathological conditions in humans. Using immunohistochemical, biochemical, and genetic interaction approaches followed by the detailed analysis of the muscle tissue architecture, we verified Dg interaction with some of the discovered factors. Analyses of mouse muscles and myocytes were used to test if interactions are conserved in vertebrates. RESULTS The muscle-specific Dg complexome revealed novel components that influence the efficiency of Dg function in the muscles. We identified the closest human homologs for Dg-interacting partners, determined their significant enrichment in disease-associations, and verified some of the newly identified Dg interactions. We found that Dg associates with two components of the mechanosignaling Hippo pathway: the WW domain-containing proteins Kibra and Yorkie. Importantly, this conserved interaction manages adult muscle size and integrity. CONCLUSIONS The results presented in this study provide a new list of muscle-specific Dg interactors, further analysis of which could aid not only in the diagnosis of muscular dystrophies, but also in the development of new therapeutics. To regulate muscle fitness during aging and disease, Dg associates with Kibra and Yorkie and acts as a transmembrane Hippo signaling receptor that transmits extracellular information to intracellular signaling cascades, regulating muscle gene expression.
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Affiliation(s)
- Andriy S Yatsenko
- Gene Expression and Signaling Group, Institute of Cell Biochemistry, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625, Hannover, Germany
| | - Mariya M Kucherenko
- Max Planck Research Group of Gene Expression and Signaling, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077, Göttingen, Germany.,Present Address: Department of Cardiothoracic and Vascular Surgery, German Heart Center Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.,Institute of Physiology, Charité - University Medicine Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Yuanbin Xie
- Max Planck Research Group of Gene Expression and Signaling, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077, Göttingen, Germany.,Present Address: University Medical Center, Centre for Anatomy, Institute of Neuroanatomy, Georg-August-University Göttingen, Kreuzbergring 36, 37075, Göttingen, Germany
| | - Dina Aweida
- Faculty of Biology, Technion, 32000, Haifa, Israel
| | - Henning Urlaub
- Bioanalytical Mass Spectrometry Research Group, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077, Göttingen, Germany.,Bioanalytics Institute for Clinical Chemistry, University Medical Center Goettingen, Robert Koch Strasse 40, 37075, Göttingen, Germany
| | - Renate J Scheibe
- Gene Expression and Signaling Group, Institute of Cell Biochemistry, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625, Hannover, Germany
| | | | - Halyna R Shcherbata
- Gene Expression and Signaling Group, Institute of Cell Biochemistry, Hannover Medical School, Carl-Neuberg-Strasse 1, 30625, Hannover, Germany. .,Max Planck Research Group of Gene Expression and Signaling, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077, Göttingen, Germany.
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32
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Vargas RE, Duong VT, Han H, Ta AP, Chen Y, Zhao S, Yang B, Seo G, Chuc K, Oh S, El Ali A, Razorenova OV, Chen J, Luo R, Li X, Wang W. Elucidation of WW domain ligand binding specificities in the Hippo pathway reveals STXBP4 as YAP inhibitor. EMBO J 2020; 39:e102406. [PMID: 31782549 PMCID: PMC6939200 DOI: 10.15252/embj.2019102406] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 11/06/2019] [Accepted: 11/11/2019] [Indexed: 12/20/2022] Open
Abstract
The Hippo pathway, which plays a critical role in organ size control and cancer, features numerous WW domain-based protein-protein interactions. However, ~100 WW domains and 2,000 PY motif-containing peptide ligands are found in the human proteome, raising a "WW-PY" binding specificity issue in the Hippo pathway. In this study, we have established the WW domain binding specificity for Hippo pathway components and uncovered a unique amino acid sequence required for it. By using this criterion, we have identified a WW domain-containing protein, STXBP4, as a negative regulator of YAP. Mechanistically, STXBP4 assembles a protein complex comprising α-catenin and a group of Hippo PY motif-containing components/regulators to inhibit YAP, a process that is regulated by actin cytoskeleton tension. Interestingly, STXBP4 is a potential tumor suppressor for human kidney cancer, whose downregulation is correlated with YAP activation in clear cell renal cell carcinoma. Taken together, our study not only elucidates the WW domain binding specificity for the Hippo pathway, but also reveals STXBP4 as a player in actin cytoskeleton tension-mediated Hippo pathway regulation.
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MESH Headings
- Adaptor Proteins, Signal Transducing/antagonists & inhibitors
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Animals
- Apoptosis
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinoma, Renal Cell/genetics
- Carcinoma, Renal Cell/metabolism
- Carcinoma, Renal Cell/pathology
- Cell Proliferation
- Female
- Gene Expression Regulation, Neoplastic
- Hippo Signaling Pathway
- Humans
- Kidney Neoplasms/genetics
- Kidney Neoplasms/metabolism
- Kidney Neoplasms/pathology
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Prognosis
- Protein Binding
- Protein Serine-Threonine Kinases/genetics
- Protein Serine-Threonine Kinases/metabolism
- Signal Transduction
- Survival Rate
- Transcription Factors/antagonists & inhibitors
- Transcription Factors/genetics
- Transcription Factors/metabolism
- Transcription, Genetic
- Tumor Cells, Cultured
- Vesicular Transport Proteins/genetics
- Vesicular Transport Proteins/metabolism
- WW Domains
- Xenograft Model Antitumor Assays
- YAP-Signaling Proteins
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Affiliation(s)
- Rebecca E Vargas
- Department of Developmental and Cell BiologyUniversity of California, IrvineIrvineCAUSA
| | - Vy Thuy Duong
- Department of ChemistryUniversity of California, IrvineIrvineCAUSA
| | - Han Han
- Department of Developmental and Cell BiologyUniversity of California, IrvineIrvineCAUSA
| | - Albert Paul Ta
- Department of Developmental and Cell BiologyUniversity of California, IrvineIrvineCAUSA
| | - Yuxuan Chen
- Department of Developmental and Cell BiologyUniversity of California, IrvineIrvineCAUSA
| | - Shiji Zhao
- Department of Developmental and Cell BiologyUniversity of California, IrvineIrvineCAUSA
| | - Bing Yang
- Department of Developmental and Cell BiologyUniversity of California, IrvineIrvineCAUSA
| | - Gayoung Seo
- Department of Developmental and Cell BiologyUniversity of California, IrvineIrvineCAUSA
| | - Kimberly Chuc
- Department of Developmental and Cell BiologyUniversity of California, IrvineIrvineCAUSA
| | - Sunwoo Oh
- Department of Developmental and Cell BiologyUniversity of California, IrvineIrvineCAUSA
| | - Amal El Ali
- Department of Molecular Biology and BiochemistryUniversity of California, IrvineIrvineCAUSA
| | - Olga V Razorenova
- Department of Molecular Biology and BiochemistryUniversity of California, IrvineIrvineCAUSA
| | - Junjie Chen
- Department of Experimental Radiation OncologyThe University of Texas MD Anderson Cancer CenterHoustonTXUSA
| | - Ray Luo
- Department of Molecular Biology and BiochemistryUniversity of California, IrvineIrvineCAUSA
- Department of Chemical and Biomolecular EngineeringUniversity of California, IrvineIrvineCAUSA
- Department of Materials Science and EngineeringUniversity of California, IrvineIrvineCAUSA
- Department of Biomedical EngineeringUniversity of California, IrvineIrvineCAUSA
| | - Xu Li
- School of Life SciencesWestlake UniversityHangzhouZhejiangChina
| | - Wenqi Wang
- Department of Developmental and Cell BiologyUniversity of California, IrvineIrvineCAUSA
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