1
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Cox CM, Wu MH, Padilla-Rodriguez M, Blum I, Momtaz S, Mitchell SAT, Wilson JM. Regulation of YAP and Wnt signaling by the endosomal protein MAMDC4. PLoS One 2024; 19:e0296003. [PMID: 38787854 PMCID: PMC11125477 DOI: 10.1371/journal.pone.0296003] [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: 03/27/2023] [Accepted: 12/04/2023] [Indexed: 05/26/2024] Open
Abstract
Maintenance of the intestinal epithelium requires constant self-renewal and regeneration. Tight regulation of proliferation and differentiation of intestinal stem cells within the crypt region is critical to maintaining homeostasis. The transcriptional co-factors β-catenin and YAP are required for proliferation during normal homeostasis as well as intestinal regeneration after injury: aberrant signaling activity results in over proliferation and tumorigenesis. Although both YAP and β-catenin activity are controlled along canonical pathways, it is becoming increasingly clear that non-canonical regulation of these transcriptional regulators plays a role in fine tuning their activity. We have shown previously that MAMDC4 (Endotubin, AEGP), an integral membrane protein present in endosomes, regulates both YAP and β-catenin activity in kidney epithelial cells and in the developing intestinal epithelium. Here we show that MAMDC4 interacts with members of the signalosome and mediates cross-talk between YAP and β-catenin. Interestingly, this cross-talk occurs through a non-canonical pathway involving interactions between AMOT:YAP and AMOT:β-catenin.
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Affiliation(s)
- Christopher M. Cox
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, United States of America
| | - Meng-Han Wu
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, United States of America
| | - Marco Padilla-Rodriguez
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, United States of America
| | - Isabella Blum
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, United States of America
| | - Samina Momtaz
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, United States of America
| | - Stefanie A. T. Mitchell
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, United States of America
| | - Jean M. Wilson
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ, United States of America
- The University of Arizona Cancer Center, University of Arizona, Tucson, AZ, United States of America
- Bio5 Institute, University of Arizona, Tucson, AZ, United States of America
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2
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Wang Y, Yu FX. Angiomotin family proteins in the Hippo signaling pathway. Bioessays 2024:e2400076. [PMID: 38760875 DOI: 10.1002/bies.202400076] [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: 04/01/2024] [Revised: 05/03/2024] [Accepted: 05/08/2024] [Indexed: 05/19/2024]
Abstract
The Motin family proteins (Motins) are a class of scaffolding proteins consisting of Angiomotin (AMOT), AMOT-like protein 1 (AMOTL1), and AMOT-like protein 2 (AMOTL2). Motins play a pivotal role in angiogenesis, tumorigenesis, and neurogenesis by modulating multiple cellular signaling pathways. Recent findings indicate that Motins are components of the Hippo pathway, a signaling cascade involved in development and cancer. This review discusses how Motins are integrated into the Hippo signaling network, as either upstream regulators or downstream effectors, to modulate cell proliferation and migration. The repression of YAP/TAZ by Motins contributes to growth inhibition, whereas subcellular localization of Motins and their interactions with actin fibers are critical in regulating cell migration. The net effect of Motins on cell proliferation and migration may contribute to their diverse biological functions.
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Affiliation(s)
- Yu Wang
- Institute of Pediatrics, Children's Hospital of Fudan University, International Co-laboratory of Medical Epigenetics and Metabolism, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Fa-Xing Yu
- Institute of Pediatrics, Children's Hospital of Fudan University, International Co-laboratory of Medical Epigenetics and Metabolism, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
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3
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Middonti E, Astanina E, Vallariello E, Hoza RM, Metovic J, Spadi R, Cristiano C, Papotti M, Allavena P, Novelli F, Parab S, Cappello P, Scarpa A, Lawlor R, Di Maio M, Arese M, Bussolino F. A neuroligin-2-YAP axis regulates progression of pancreatic intraepithelial neoplasia. EMBO Rep 2024; 25:1886-1908. [PMID: 38413734 PMCID: PMC11014856 DOI: 10.1038/s44319-024-00104-x] [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: 06/05/2023] [Revised: 02/05/2024] [Accepted: 02/13/2024] [Indexed: 02/29/2024] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a tumor with a dismal prognosis that arises from precursor lesions called pancreatic intraepithelial neoplasias (PanINs). Progression from low- to high-grade PanINs is considered as tumor initiation, and a deeper understanding of this switch is needed. Here, we show that synaptic molecule neuroligin-2 (NLGN2) is expressed by pancreatic exocrine cells and plays a crucial role in the regulation of contact inhibition and epithelial polarity, which characterize the switch from low- to high-grade PanIN. NLGN2 localizes to tight junctions in acinar cells, is diffusely distributed in the cytosol in low-grade PanINs and is lost in high-grade PanINs and in a high percentage of advanced PDACs. Mechanistically, NLGN2 is necessary for the formation of the PALS1/PATJ complex, which in turn induces contact inhibition by reducing YAP function. Our results provide novel insights into NLGN2 functions outside the nervous system and can be used to model PanIN progression.
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Affiliation(s)
- Emanuele Middonti
- Department of Oncology, University of Torino, 10043, Orbassano, Italy.
- Candiolo Cancer Institute-IRCCS-FPO, 10060, Candiolo, Italy.
| | - Elena Astanina
- Department of Oncology, University of Torino, 10043, Orbassano, Italy
- Candiolo Cancer Institute-IRCCS-FPO, 10060, Candiolo, Italy
| | - Edoardo Vallariello
- Department of Oncology, University of Torino, 10043, Orbassano, Italy
- Candiolo Cancer Institute-IRCCS-FPO, 10060, Candiolo, Italy
| | - Roxana Maria Hoza
- Department of Oncology, University of Torino, 10043, Orbassano, Italy
- Candiolo Cancer Institute-IRCCS-FPO, 10060, Candiolo, Italy
| | - Jasna Metovic
- Department of Oncology, University of Torino, 10043, Orbassano, Italy
| | - Rosella Spadi
- SC Oncologia Medica, Città della Salute e della Scienza di Torino, 10126, Torino, Italy
| | - Carmen Cristiano
- SC Oncologia Medica, Città della Salute e della Scienza di Torino, 10126, Torino, Italy
| | - Mauro Papotti
- Department of Oncology, University of Torino, 10043, Orbassano, Italy
- Division of Pathology at Città della Salute e della Scienza di Torino, 10126, Torino, Italy
| | - Paola Allavena
- IRCCS, Humanitas Clinical and Research Center, 20089, Rozzano, Italy
| | - Francesco Novelli
- Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126, Torino, Italy
- Laboratory of Tumor Immunology, Center for Experimental Research and Medical Studies, Città della Salute e della Scienza di Torino, 10126, Torino, Italy
- Molecular Biotechnology Center, University of Torino, 10125, Torino, Italy
| | - Sushant Parab
- Department of Oncology, University of Torino, 10043, Orbassano, Italy
- Candiolo Cancer Institute-IRCCS-FPO, 10060, Candiolo, Italy
| | - Paola Cappello
- Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126, Torino, Italy
- Laboratory of Tumor Immunology, Center for Experimental Research and Medical Studies, Città della Salute e della Scienza di Torino, 10126, Torino, Italy
- Molecular Biotechnology Center, University of Torino, 10125, Torino, Italy
| | - Aldo Scarpa
- Applied Research Center (ARC-NET), University of Verona, 37134, Verona, Italy
- Department of Diagnostics and Public Health, University of Verona, 37134, Verona, Italy
| | - Rita Lawlor
- Applied Research Center (ARC-NET), University of Verona, 37134, Verona, Italy
- Department of Diagnostics and Public Health, University of Verona, 37134, Verona, Italy
| | - Massimo Di Maio
- Department of Oncology, University of Torino, 10043, Orbassano, Italy
- Medical Oncology, Ordine Mauriziano Hospital, 10128, Torino, Italy
| | - Marco Arese
- Department of Oncology, University of Torino, 10043, Orbassano, Italy
- Candiolo Cancer Institute-IRCCS-FPO, 10060, Candiolo, Italy
| | - Federico Bussolino
- Department of Oncology, University of Torino, 10043, Orbassano, Italy.
- Candiolo Cancer Institute-IRCCS-FPO, 10060, Candiolo, Italy.
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4
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Shao A, Kissil JL, Fan CM. The L27 Domain of MPP7 enhances TAZ-YY1 Cooperation to Renew Muscle Stem Cells. RESEARCH SQUARE 2023:rs.3.rs-3673774. [PMID: 38077061 PMCID: PMC10705706 DOI: 10.21203/rs.3.rs-3673774/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Stem cells regenerate differentiated cells to maintain and repair tissues and organs. They also replenish themselves, i.e. self-renewal, for the regenerative process to last a lifetime. How stem cells renew is of critical biological and medical significance. Here we use the skeletal muscle stem cell (MuSC) to study this process. Using a combination of genetic, molecular, and biochemical approaches, we show that MPP7, AMOT, and TAZ/YAP form a complex that activates a common set of target genes. Among these targets, Carm1 can direct MuSC renewal. In the absence of MPP7, TAZ can support regenerative progenitors and activate Carm1 expression, but not to a level needed for self-renewal. Facilitated by the actin polymerization-responsive AMOT, TAZ recruits the L27 domain of MPP7 to up-regulate Carm1 to the level necessary to drive MuSC renewal. The promoter of Carm1, and those of other common downstream genes, also contain binding site(s) for YY1. We further demonstrate that the L27 domain of MPP7 enhances the interaction between TAZ and YY1 to activate Carm1. Our results define a renewal transcriptional program embedded within the progenitor program, by selectively up-regulating key gene(s) within the latter, through the combination of protein interactions and in a manner dependent on the promoter context.
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Affiliation(s)
- Anwen Shao
- Department of Embryology, Carnegie Institution for Science, 3520 San Martin Drive, Baltimore, MD 21218
| | - Joseph L. Kissil
- Department of Molecular Oncology, The H. Lee Moffitt Cancer Center, 12902 USF Magnolia Drive, Tampa, FL 33612
| | - Chen-Ming Fan
- Department of Embryology, Carnegie Institution for Science, 3520 San Martin Drive, Baltimore, MD 21218
- Department of Biology, Johns Hopkins University, 3400 N Charles Street, Baltimore, MD 21218
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5
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Shao A, Kissil JL, Fan CM. The L27 Domain of MPP7 enhances TAZ-YY1 Cooperation to Renew Muscle Stem Cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.01.565166. [PMID: 37961392 PMCID: PMC10635061 DOI: 10.1101/2023.11.01.565166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Stem cells regenerate differentiated cells to maintain and repair tissues and organs. They also replenish themselves, i.e. self-renewal, for the regenerative process to last a lifetime. How stem cells renew is of critical biological and medical significance. Here we use the skeletal muscle stem cell (MuSC) to study this process. Using a combination of genetic, molecular, and biochemical approaches, we show that MPP7, AMOT, and TAZ/YAP form a complex that activates a common set of target genes. Among these targets, Carm1 can direct MuSC renewal. In the absence of MPP7, TAZ can support regenerative progenitors and activate Carm1 expression, but not to a level needed for self-renewal. Facilitated by the actin polymerization-responsive AMOT, TAZ recruits the L27 domain of MPP7 to up-regulate Carm1 to the level necessary to drive MuSC renewal. The promoter of Carm1, and those of other common downstream genes, also contain binding site(s) for YY1. We further demonstrate that the L27 domain of MPP7 enhances the interaction between TAZ and YY1 to activate Carm1. Our results define a renewal transcriptional program embedded within the progenitor program, by selectively up-regulating key gene(s) within the latter, through the combination of protein interactions and in a manner dependent on the promoter context.
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Affiliation(s)
- Anwen Shao
- Department of Embryology, Carnegie Institution for Science, 3520 San Martin Drive, Baltimore, MD 21218
| | - Joseph L. Kissil
- Department of Molecular Oncology, The H. Lee Moffitt Cancer Center, 12902 USF Magnolia Drive, Tampa, FL 33612
| | - Chen-Ming Fan
- Department of Embryology, Carnegie Institution for Science, 3520 San Martin Drive, Baltimore, MD 21218
- Department of Biology, Johns Hopkins University, 3400 N Charles Street, Baltimore, MD 21218
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6
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Tokarz VL, Pereira RVS, Jaldin-Fincati JR, Mylvaganam S, Klip A. Junctional integrity and directional mobility of lymphatic endothelial cell monolayers are disrupted by saturated fatty acids. Mol Biol Cell 2023; 34:ar28. [PMID: 36735487 PMCID: PMC10092641 DOI: 10.1091/mbc.e22-08-0367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The lymphatic circulation regulates transfer of tissue fluid and immune cells toward the venous circulation. While obesity impairs lymphatic vessel function, the contribution of lymphatic endothelial cells (LEC) to metabolic disease phenotypes is poorly understood. LEC of lymphatic microvessels are in direct contact with the interstitial fluid, whose composition changes during the development of obesity, markedly by increases in saturated fatty acids. Palmitate, the most prevalent saturated fatty acid in lymph and blood, is detrimental to metabolism and function of diverse tissues, but its impact on LEC function is relatively unknown. Here, palmitate (but not its unsaturated counterpart palmitoleate) destabilized adherens junctions in human microvascular LEC in culture, visualized as changes in VE-cadherin, α-catenin, and β-catenin localization. Detachment of these proteins from cortical actin filaments was associated with abundant actomyosin stress fibers. The effects were Rho-associated protein kinase (ROCK)- and myosin-dependent, as inhibition with Y27632 or blebbistatin, respectively, prevented stress fiber accumulation and preserved junctions. Without functional junctions, palmitate-treated LEC failed to directionally migrate to close wounds in two dimensions and failed to form endothelial tubes in three dimensions. A reorganization of the lymphatic endothelial actin cytoskeleton may contribute to lymphatic dysfunction in obesity and could be considered as a therapeutic target.
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Affiliation(s)
- Victoria L Tokarz
- Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada.,Department of Physiology, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Rafaela V S Pereira
- Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | | | - Sivakami Mylvaganam
- Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada.,Department of Biochemistry, University of Toronto, Toronto, ON M5S 1A1, Canada
| | - Amira Klip
- Cell Biology Program, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada.,Department of Physiology, University of Toronto, Toronto, ON M5S 1A1, Canada.,Department of Biochemistry, University of Toronto, Toronto, ON M5S 1A1, Canada.,Department of Paediatrics, University of Toronto, Toronto, ON M5S 1A1, Canada
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7
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Chen ACH, Lee YL, Ruan H, Huang W, Fong SW, Tian S, Lee KC, Wu GM, Tan Y, Wong TCH, Wu J, Zhang W, Cao D, Chow JFC, Liu P, Yeung WSB. Expanded Potential Stem Cells from Human Embryos Have an Open Chromatin Configuration with Enhanced Trophoblast Differentiation Ability. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2204797. [PMID: 36775869 PMCID: PMC10104645 DOI: 10.1002/advs.202204797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Human expanded potential stem cells (hEPSC) have been derived from human embryonic stem cells and induced pluripotent stem cells. Here direct derivation of hEPSC from human pre-implantation embryos is reported. Like the reported hEPSC, the embryo-derived hEPSC (hEPSC-em) exhibit a transcriptome similar to morula, comparable differentiation potency, and high genome editing efficiency. Interestingly, the hEPSC-em show a unique H3 lysine-4 trimethylation (H3K4me3) open chromatin conformation; they possess a higher proportion of H3K4me3 bound broad domain (>5 kb) than the reported hEPSC, naive, and primed embryonic stem cells. The open conformation is associated with enhanced trophoblast differentiation potency with increased trophoblast gene expression upon induction of differentiation and success in derivation of trophoblast stem cells with bona fide characteristics. Hippo signaling is specifically enriched in the H3K4me3 broad domains of the hEPSC-. Knockout of the Hippo signaling gene, YAP1 abolishes the ability of the embryo-derived EPSC to form trophoblast stem cells.
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Affiliation(s)
- Andy Chun Hang Chen
- Department of Obstetrics and Gynaecology, School of Clinical MedicineLi Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Shenzhen Key Laboratory of Fertility RegulationReproductive Medicine CenterThe University of Hong Kong ‐ Shenzhen HospitalShenzhen518000China
- Centre for Translational Stem Cell BiologyBuilding 17 WThe Hong Kong Science and Technology ParkHong KongHong Kong
| | - Yin Lau Lee
- Department of Obstetrics and Gynaecology, School of Clinical MedicineLi Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Shenzhen Key Laboratory of Fertility RegulationReproductive Medicine CenterThe University of Hong Kong ‐ Shenzhen HospitalShenzhen518000China
- Centre for Translational Stem Cell BiologyBuilding 17 WThe Hong Kong Science and Technology ParkHong KongHong Kong
| | - Hanzhang Ruan
- Department of Obstetrics and Gynaecology, School of Clinical MedicineLi Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
| | - Wen Huang
- Department of Obstetrics and Gynaecology, School of Clinical MedicineLi Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
| | - Sze Wan Fong
- Department of Obstetrics and Gynaecology, School of Clinical MedicineLi Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
| | - Siyu Tian
- Department of Obstetrics and Gynaecology, School of Clinical MedicineLi Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
| | - Kai Chuen Lee
- Department of Obstetrics and Gynaecology, School of Clinical MedicineLi Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Centre for Translational Stem Cell BiologyBuilding 17 WThe Hong Kong Science and Technology ParkHong KongHong Kong
| | - Genie Minju Wu
- Department of Obstetrics and Gynaecology, School of Clinical MedicineLi Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
| | - Yongqi Tan
- Department of Obstetrics and Gynaecology, School of Clinical MedicineLi Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
| | - Timothy Chun Hin Wong
- Centre for Translational Stem Cell BiologyBuilding 17 WThe Hong Kong Science and Technology ParkHong KongHong Kong
| | - Jian Wu
- Centre for Translational Stem Cell BiologyBuilding 17 WThe Hong Kong Science and Technology ParkHong KongHong Kong
| | - Weiyu Zhang
- Centre for Translational Stem Cell BiologyBuilding 17 WThe Hong Kong Science and Technology ParkHong KongHong Kong
| | - Dandan Cao
- Shenzhen Key Laboratory of Fertility RegulationReproductive Medicine CenterThe University of Hong Kong ‐ Shenzhen HospitalShenzhen518000China
| | - Judy Fung Cheung Chow
- Department of Obstetrics and Gynaecology, School of Clinical MedicineLi Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
| | - Pengtao Liu
- Centre for Translational Stem Cell BiologyBuilding 17 WThe Hong Kong Science and Technology ParkHong KongHong Kong
- School of Biomedical SciencesLi Ka Shing Faculty of MedicineThe University of Hong KongStem Cell and Regenerative Medicine ConsortiumHong KongHong Kong
| | - William Shu Biu Yeung
- Department of Obstetrics and Gynaecology, School of Clinical MedicineLi Ka Shing Faculty of MedicineThe University of Hong KongHong KongHong Kong
- Shenzhen Key Laboratory of Fertility RegulationReproductive Medicine CenterThe University of Hong Kong ‐ Shenzhen HospitalShenzhen518000China
- Centre for Translational Stem Cell BiologyBuilding 17 WThe Hong Kong Science and Technology ParkHong KongHong Kong
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8
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Amirifar P, Kissil J. The role of Motin family proteins in tumorigenesis-an update. Oncogene 2023; 42:1265-1271. [PMID: 36973516 DOI: 10.1038/s41388-023-02677-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 03/29/2023]
Abstract
The Motin protein family consists of three members: AMOT (p80 and p130 isoforms), AMOT-like protein 1 (AMOTL1), and AMOT-like protein 2 (AMOTL2). The family members play an important role in processes such as cell proliferation, migration, angiogenesis, tight junction formation, and cell polarity. These functions are mediated through the involvement of the Motins in the regulation of different signal transduction pathways, including those regulated by small G-proteins and the Hippo-YAP pathway. One of the more characterized aspects of Motin family function is their role in regulating signaling through the Hippo-YAP pathway, and while some studies suggest a YAP-inhibitory function other studies indicate the Motins are required for YAP activity. This duality is also reflected in previous reports, often contradictory, that suggest the Motin proteins can function as oncogenes or tumor suppressors in tumorigenesis. In this review we summarize recent findings and integrate that with the existing work describing the multifunctional role of the Motins in different cancers. The emerging picture suggests that the Motin protein function is cell-type and context dependent and that further investigation in relevant cell types and whole organism models is required for the elucidation of the function of this protein family.
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Affiliation(s)
- Parisa Amirifar
- Department of Molecular Oncology, Cancer Biology Evolution Program, H. Lee Moffitt Cancer Center, Tampa, FL, USA
| | - Joseph Kissil
- Department of Molecular Oncology, Cancer Biology Evolution Program, H. Lee Moffitt Cancer Center, Tampa, FL, USA.
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9
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Liu Y, Zhang B, Zhou Y, Xing Y, Wang Y, Jia Y, Liu D. Targeting Hippo pathway: A novel strategy for Helicobacter pylori-induced gastric cancer treatment. Biomed Pharmacother 2023; 161:114549. [PMID: 36958190 DOI: 10.1016/j.biopha.2023.114549] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 03/15/2023] [Indexed: 03/25/2023] Open
Abstract
The Hippo pathway plays an important role in cell proliferation, apoptosis, and differentiation; it is a crucial regulatory pathway in organ development and tumor growth. Infection with Helicobacter pylori (H. pylori) increases the risk of developing gastric cancer. In recent years, significant progress has been made in understanding the mechanisms by which H. pylori infection promotes the development and progression of gastric cancer via the Hippo pathway. Exploring the Hippo pathway molecules may yield new diagnostic and therapeutic targets for H. pylori-induced gastric cancer. The current article reviews the composition and regulatory mechanism of the Hippo pathway, as well as the research progress of the Hippo pathway in the occurrence and development of H. pylori-related gastric cancer, in order to provide a broader perspective for the study and prevention of gastric cancer.
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Affiliation(s)
- Yunyun Liu
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, People's Republic of China; Research Center of Basic Medicine, Jinan Central Hospital, Shandong First Medical University, Jinan, People's Republic of China
| | - Bingkai Zhang
- Department of Anorectal Surgery, Qingzhou People's Hospital, Qingzhou, People's Republic of China
| | - Yimin Zhou
- School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, People's Republic of China
| | - Yuanxin Xing
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, People's Republic of China; Research Center of Basic Medicine, Jinan Central Hospital, Shandong First Medical University, Jinan, People's Republic of China
| | - Yunshan Wang
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, People's Republic of China; Research Center of Basic Medicine, Jinan Central Hospital, Shandong First Medical University, Jinan, People's Republic of China
| | - Yanfei Jia
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong University, Jinan, People's Republic of China; Research Center of Basic Medicine, Jinan Central Hospital, Shandong First Medical University, Jinan, People's Republic of China.
| | - Duanrui Liu
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, People's Republic of China; Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, People's Republic of China.
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10
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Burt MA, Kalejaiye TD, Bhattacharya R, Dimitrakakis N, Musah S. Adriamycin-Induced Podocyte Injury Disrupts the YAP-TEAD1 Axis and Downregulates Cyr61 and CTGF Expression. ACS Chem Biol 2022; 17:3341-3351. [PMID: 34890187 DOI: 10.1021/acschembio.1c00678] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The most severe forms of kidney diseases are often associated with irreversible damage to the glomerular podocytes, the highly specialized epithelial cells that encase glomerular capillaries and regulate the removal of toxins and waste from the blood. Several studies revealed significant changes to podocyte cytoskeletal structure during disease onset, suggesting possible roles of cellular mechanosensing in podocyte responses to injury. Still, this topic remains underexplored partly due to the lack of appropriate in vitro models that closely recapitulate human podocyte biology. Here, we leveraged our previously established method for the derivation of mature podocytes from human induced pluripotent stem cells (hiPSCs) to help uncover the roles of yes-associated protein (YAP), a transcriptional coactivator and mechanosensor, in podocyte injury response. We found that while the total expression levels of YAP remain relatively unchanged during Adriamycin (ADR)-induced podocyte injury, the YAP target genes connective tissue growth factor (CTGF) and cysteine-rich angiogenic inducer 61 (Cyr61) are significantly downregulated. Intriguingly, TEAD1 is significantly downregulated in podocytes injured with ADR. By examining multiple independent modes of cellular injury, we found that CTGF and Cyr61 expression are downregulated only when podocytes were exposed to molecules known to disrupt the cell's mechanical integrity or cytoskeletal structure. To our knowledge, this is the first report that the YAP-TEAD1 signaling axis is disrupted when stem cell-derived human podocytes experience biomechanical injury. Together, these results could help improve the understanding of kidney disease mechanisms and highlight CTGF and Cyr61 as potential therapeutic targets or biomarkers for patient stratification.
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Affiliation(s)
- Morgan A Burt
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Titilola D Kalejaiye
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Rohan Bhattacharya
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
- Center for Biomolecular and Tissue Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Nikolaos Dimitrakakis
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115, United States
| | - Samira Musah
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
- Center for Biomolecular and Tissue Engineering, Duke University, Durham, North Carolina 27708, United States
- Department of Medicine, Division of Nephrology, Duke University School of Medicine, Durham, North Carolina 27710, United States
- Department of Cell Biology, Duke University, Durham, North Carolina 27710, United States
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11
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Shi Q, Zheng L, Na J, Li X, Yang Z, Chen X, Song Y, Li C, Zhou L, Fan Y. Fluid shear stress promotes periodontal ligament cells proliferation via p38-AMOT-YAP. Cell Mol Life Sci 2022; 79:551. [DOI: 10.1007/s00018-022-04591-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/28/2022] [Accepted: 10/07/2022] [Indexed: 11/30/2022]
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12
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Zheng A, Chen Q, Zhang L. The Hippo-YAP pathway in various cardiovascular diseases: Focusing on the inflammatory response. Front Immunol 2022; 13:971416. [PMID: 36059522 PMCID: PMC9433876 DOI: 10.3389/fimmu.2022.971416] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 08/02/2022] [Indexed: 11/25/2022] Open
Abstract
The Hippo pathway was initially discovered in Drosophila melanogaster and mammals as a key regulator of tissue growth both in physiological and pathological states. Numerous studies depict the vital role of the Hippo pathway in cardiovascular development, heart regeneration, organ size and vascular remodeling through the regulation of YAP (yes-associated protein) translocation. Recently, an increasing number of studies have focused on the Hippo-YAP pathway in inflammation and immunology. Although the Hippo-YAP pathway has been revealed to play controversial roles in different contexts and cell types in the cardiovascular system, the mechanisms regulating tissue inflammation and the immune response remain to be clarified. In this review, we summarize findings from the past decade on the function and mechanism of the Hippo-YAP pathway in CVDs (cardiovascular diseases) such as myocardial infarction, cardiomyopathy and atherosclerosis. In particular, we emphasize the role of the Hippo-YAP pathway in regulating inflammatory cell infiltration and inflammatory cytokine activation.
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Affiliation(s)
| | | | - Li Zhang
- *Correspondence: Li Zhang, ; Qishan Chen,
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13
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GNAQ and GNA11 Genes: A Comprehensive Review on Oncogenesis, Prognosis and Therapeutic Opportunities in Uveal Melanoma. Cancers (Basel) 2022; 14:cancers14133066. [PMID: 35804836 PMCID: PMC9264989 DOI: 10.3390/cancers14133066] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/16/2022] [Accepted: 06/17/2022] [Indexed: 11/17/2022] Open
Abstract
The GNAQ and GNA11 genes are mutated in almost 80–90% of uveal melanomas in a mutually exclusive pattern. These genes encode the alpha subunits of the heterotrimeric G proteins, Gq and G11; thus, mutations of these genes result in the activation of several important signaling pathways, including phospholipase C, and activation of the transcription factor YAP. It is well known that both of them act as driver genes in the oncogenic process and it has been assumed that they do not play a role in the prognosis of these tumours. However, it has been hypothesised that mutations in these genes could give rise to molecularly and clinically distinct types of uveal melanomas. It has also been questioned whether the type and location of mutation in the GNAQ and GNA11 genes may affect the progression of these tumours. All of these questions, except for their implications in carcinogenesis, remain controversial. Uveal melanoma has a distinctive genetic profile, and specific recurrent mutations, which make it a potential candidate for treatment with targeted therapy. Given that the most frequent mutations are those observed in the GNAQ and GNA11 genes, and that both genes are involved in oncogenesis, these molecules, as well as the downstream signalling pathways in which they are involved, have been proposed as promising potential therapeutic targets. Therefore, in this review, special attention is paid to the current data related to the possible prognostic implications of both genes from different perspectives, as well as the therapeutic options targeting them.
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14
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Guo CL. Self-Sustained Regulation or Self-Perpetuating Dysregulation: ROS-dependent HIF-YAP-Notch Signaling as a Double-Edged Sword on Stem Cell Physiology and Tumorigenesis. Front Cell Dev Biol 2022; 10:862791. [PMID: 35774228 PMCID: PMC9237464 DOI: 10.3389/fcell.2022.862791] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/29/2022] [Indexed: 12/19/2022] Open
Abstract
Organ development, homeostasis, and repair often rely on bidirectional, self-organized cell-niche interactions, through which cells select cell fate, such as stem cell self-renewal and differentiation. The niche contains multiplexed chemical and mechanical factors. How cells interpret niche structural information such as the 3D topology of organs and integrate with multiplexed mechano-chemical signals is an open and active research field. Among all the niche factors, reactive oxygen species (ROS) have recently gained growing interest. Once considered harmful, ROS are now recognized as an important niche factor in the regulation of tissue mechanics and topology through, for example, the HIF-YAP-Notch signaling pathways. These pathways are not only involved in the regulation of stem cell physiology but also associated with inflammation, neurological disorder, aging, tumorigenesis, and the regulation of the immune checkpoint molecule PD-L1. Positive feedback circuits have been identified in the interplay of ROS and HIF-YAP-Notch signaling, leading to the possibility that under aberrant conditions, self-organized, ROS-dependent physiological regulations can be switched to self-perpetuating dysregulation, making ROS a double-edged sword at the interface of stem cell physiology and tumorigenesis. In this review, we discuss the recent findings on how ROS and tissue mechanics affect YAP-HIF-Notch-PD-L1 signaling, hoping that the knowledge can be used to design strategies for stem cell-based and ROS-targeting therapy and tissue engineering.
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15
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He J, You D, Li Q, Wang J, Ding S, He X, Zheng H, Ji Z, Wang X, Ye X, Liu C, Kang H, Xu X, Xu X, Wang H, Yu M. Osteogenesis-Inducing Chemical Cues Enhance the Mechanosensitivity of Human Mesenchymal Stem Cells for Osteogenic Differentiation on a Microtopographically Patterned Surface. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200053. [PMID: 35373921 PMCID: PMC9165486 DOI: 10.1002/advs.202200053] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/25/2022] [Indexed: 05/13/2023]
Abstract
Mechanical cues are widely used for regulating cell behavior because of their overarching, extensive, and non-invasive advantages. However, unlike chemical cues, mechanical cues are not efficient enough to determine cell fate independently and improving the mechanosensitivity of cells is rather challenging. In this study, the combined effect of chemical and mechanical cues on the osteogenic differentiation of human mesenchymal stem cells is examined. These results show that chemical cues such as the presence of an osteogenic medium, induce cells to secrete more collagen, and induce integrin for recruiting focal adhesion proteins that mature and cascade a series of events with the help of the mechanical force of the scaffold material. High-resolution, highly ordered hollow-micro-frustum-arrays using double-layer lithography, combined with modified methacrylate gelatin loaded with pre-defined soluble chemicals to provide both chemical and mechanical cues to cells. This approach ultimately facilitates the achievement of cellular osteodifferentiation and enhances bone repair efficiency in a model of femoral fracture in vivo in mice. Moreover, the results also reveal these pivotal roles of Integrin α2/Focal adhesion kinase/Ras homolog gene family member A/Large Tumor Suppressor 1/Yes-associated protein in human mesenchymal stem cells osteogenic differentiation both in vitro and in vivo. Overall, these results show that chemical cues enhance the microtopographical sensitivity of cells.
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Affiliation(s)
- Jianxiang He
- Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceStomatology HospitalSchool of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesHangzhou310006P. R. China
| | - Dongqi You
- Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceStomatology HospitalSchool of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesHangzhou310006P. R. China
| | - Qi Li
- Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceStomatology HospitalSchool of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesHangzhou310006P. R. China
| | - Jiabao Wang
- School of Materials Science and Engineeringand Institute for Advanced StudyTongji UniversityShanghai201804P. R. China
| | - Sijia Ding
- Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceStomatology HospitalSchool of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesHangzhou310006P. R. China
| | - Xiaotong He
- Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceStomatology HospitalSchool of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesHangzhou310006P. R. China
| | - Haiyan Zheng
- Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceStomatology HospitalSchool of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesHangzhou310006P. R. China
| | - Zhenkai Ji
- School of Materials Science and Engineeringand Institute for Advanced StudyTongji UniversityShanghai201804P. R. China
| | - Xia Wang
- Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceStomatology HospitalSchool of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesHangzhou310006P. R. China
| | - Xin Ye
- Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceStomatology HospitalSchool of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesHangzhou310006P. R. China
| | - Chao Liu
- Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceStomatology HospitalSchool of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesHangzhou310006P. R. China
| | - Hanyue Kang
- School of Materials Science and Engineeringand Institute for Advanced StudyTongji UniversityShanghai201804P. R. China
| | - Xiuzhen Xu
- School of Materials Science and Engineeringand Institute for Advanced StudyTongji UniversityShanghai201804P. R. China
| | - Xiaobin Xu
- School of Materials Science and Engineeringand Institute for Advanced StudyTongji UniversityShanghai201804P. R. China
| | - Huiming Wang
- Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceStomatology HospitalSchool of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesHangzhou310006P. R. China
- School of StomatologyThe First Affiliated Hospital of Zhejiang University School of MedicineHangzhou310003P. R. China
| | - Mengfei Yu
- Key Laboratory of Oral Biomedical Research of Zhejiang ProvinceStomatology HospitalSchool of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesHangzhou310006P. R. China
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16
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Hippo signaling pathway and respiratory diseases. Cell Death Dis 2022; 8:213. [PMID: 35443749 PMCID: PMC9021242 DOI: 10.1038/s41420-022-01020-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 12/16/2022]
Abstract
The hippo signaling pathway is a highly conserved evolutionary signaling pathway that plays an important role in regulating cell proliferation, organ size, tissue development, and regeneration. Increasing evidences consider that the hippo signaling pathway is involved in the process of respiratory diseases. Hippo signaling pathway is mainly composed of mammalian STE20-like kinase 1/2 (MST1/2), large tumor suppressor 1/2 (LATS1/2), WW domain of the Sav family containing protein 1 (SAV1), MOB kinase activator 1 (MOB1), Yes-associated protein (YAP) or transcriptional coactivator with PDZ-binding motif (TAZ), and members of the TEA domain (TEAD) family. YAP is the cascade effector of the hippo signaling pathway. The activation of YAP promotes pulmonary arterial vascular smooth muscle cells (PAVSMCs) proliferation, which leads to pulmonary vascular remodeling; thereby the pulmonary arterial hypertension (PAH) is aggravated. While the loss of YAP leads to high expression of inflammatory genes and the accumulation of inflammatory cells, the pneumonia is consequently exacerbated. In addition, overexpressed YAP promotes the proliferation of lung fibroblasts and collagen deposition; thereby the idiopathic pulmonary fibrosis (IPF) is promoted. Moreover, YAP knockout reduces collagen deposition and the senescence of adult alveolar epithelial cells (AECs); hence the IPF is slowed. In addition, hippo signaling pathway may be involved in the repair of acute lung injury (ALI) by promoting the proliferation and differentiation of lung epithelial progenitor cells and intervening in the repair of pulmonary capillary endothelium. Moreover, the hippo signaling pathway is involved in asthma. In conclusion, the hippo signaling pathway is involved in respiratory diseases. More researches are needed to focus on the molecular mechanisms by which the hippo signaling pathway participates in respiratory diseases.
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17
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WWOX-Mediated Degradation of AMOTp130 Negatively Affects Egress of Filovirus VP40 VLPs. J Virol 2022; 96:e0202621. [PMID: 35107375 DOI: 10.1128/jvi.02026-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Ebola (EBOV) and Marburg (MARV) viruses continue to emerge and cause severe hemorrhagic disease in humans. A comprehensive understanding of the filovirus-host interplay will be crucial for identifying and developing antiviral strategies. The filoviral VP40 matrix protein drives virion assembly and egress, in part by recruiting specific WW-domain-containing host interactors via its conserved PPxY Late (L) domain motif to positively regulate virus egress and spread. In contrast to these positive regulators of virus budding, a growing list of WW-domain-containing interactors that negatively regulate virus egress and spread have been identified, including BAG3, YAP/TAZ and WWOX. In addition to host WW-domain regulators of virus budding, host PPxY-containing proteins also contribute to regulating this late stage of filovirus replication. For example, angiomotin (AMOT) is a multi-PPxY-containing host protein that functionally interacts with many of the same WW-domain-containing proteins that regulate virus egress and spread. In this report, we demonstrate that host WWOX, which negatively regulates egress of VP40 VLPs and recombinant VSV-M40 virus, interacts with and suppresses the expression of AMOT. We found that WWOX disrupts AMOT's scaffold-like tubular distribution and reduces AMOT localization at the plasma membrane via lysosomal degradation. In sum, our findings reveal an indirect and novel mechanism by which modular PPxY/WW-domain interactions between AMOT and WWOX regulate PPxY-mediated egress of filovirus VP40 VLPs. A better understanding of this modular network and competitive nature of protein-protein interactions will help to identify new antiviral targets and therapeutic strategies. IMPORTANCE Filoviruses (Ebola [EBOV] and Marburg [MARV]) are zoonotic, emerging pathogens that cause outbreaks of severe hemorrhagic fever in humans. A fundamental understanding of the virus-host interface is critical for understanding the biology of these viruses and for developing future strategies for therapeutic intervention. Here, we reveal a novel mechanism by which host proteins WWOX and AMOTp130 interact with each other and with the EBOV matrix protein VP40 to regulate VP40-mediated egress of virus like particles (VLPs). Our results highlight the biological impact of competitive interplay of modular virus-host interactions on both the virus lifecycle and the host cell.
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18
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Abstract
Yes-associated protein 1 (YAP1) is a transcriptional coactivator that activates transcriptional enhanced associate domain transcription factors upon inactivation of the Hippo signaling pathway, to regulate biological processes like proliferation, survival, and differentiation. YAP1 is most prominently expressed in biliary epithelial cells (BECs) in normal adult livers and during development. In the current review, we will discuss the multiple roles of YAP1 in the development and morphogenesis of bile ducts inside and outside the liver, as well as in orchestrating the cholangiocyte repair response to biliary injury. We will review how biliary repair can occur through the process of hepatocyte-to-BEC transdifferentiation and how YAP1 is pertinent to this process. We will also discuss the liver's capacity for metabolic reprogramming as an adaptive mechanism in extreme cholestasis, such as when intrahepatic bile ducts are absent due to YAP1 loss from hepatic progenitors. Finally, we will discuss the roles of YAP1 in the context of pediatric pathologies afflicting bile ducts, such as Alagille syndrome and biliary atresia. In conclusion, we will comprehensively discuss the spatiotemporal roles of YAP1 in biliary development and repair after biliary injury while describing key interactions with other well-known developmental pathways.
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Affiliation(s)
- Laura Molina
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh School of Medicine
| | - Kari Nejak-Bowen
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh School of Medicine,Pittsburgh Liver Research Center, University of Pittsburgh and University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Satdarshan P. Monga
- Division of Experimental Pathology, Department of Pathology, University of Pittsburgh School of Medicine,Pittsburgh Liver Research Center, University of Pittsburgh and University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania,Division of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh and UPMC, Pittsburgh, Pennsylvania
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19
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Zarka M, Haÿ E, Cohen-Solal M. YAP/TAZ in Bone and Cartilage Biology. Front Cell Dev Biol 2022; 9:788773. [PMID: 35059398 PMCID: PMC8764375 DOI: 10.3389/fcell.2021.788773] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 11/23/2021] [Indexed: 12/25/2022] Open
Abstract
YAP and TAZ were initially described as the main regulators of organ growth during development and more recently implicated in bone biology. YAP and TAZ are regulated by mechanical and cytoskeletal cues that lead to the control of cell fate in response to the cellular microenvironment. The mechanical component represents a major signal for bone tissue adaptation and remodelling, so YAP/TAZ contributes significantly in bone and cartilage homeostasis. Recently, mice and cellular models have been developed to investigate the precise roles of YAP/TAZ in bone and cartilage cells, and which appear to be crucial. This review provides an overview of YAP/TAZ regulation and function, notably providing new insights into the role of YAP/TAZ in bone biology.
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Affiliation(s)
- Mylène Zarka
- INSERM UMR 1132 BIOSCAR, Hôpital Lariboisière, Paris, France.,Faculté de Santé, Université de Paris, Paris, France
| | - Eric Haÿ
- INSERM UMR 1132 BIOSCAR, Hôpital Lariboisière, Paris, France.,Faculté de Santé, Université de Paris, Paris, France
| | - Martine Cohen-Solal
- INSERM UMR 1132 BIOSCAR, Hôpital Lariboisière, Paris, France.,Faculté de Santé, Université de Paris, Paris, France
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20
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Tian Q, Gao H, Zhou Y, Zhu L, Yang J, Wang B, Liu P, Yang J. RICH1 inhibits breast cancer stem cell traits through activating kinases cascade of Hippo signaling by competing with Merlin for binding to Amot-p80. Cell Death Dis 2022; 13:71. [PMID: 35064101 PMCID: PMC8782888 DOI: 10.1038/s41419-022-04516-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 12/20/2021] [Accepted: 01/10/2022] [Indexed: 01/02/2023]
Abstract
Cancer stem cells (CSCs) are regarded as the root of tumor recurrence and distant metastasis, as well as the major cause of resistance to conventional cancer therapies. Elucidating the mechanism of regulating CSCs is of great significance for the development of CSCs-targeting therapy strategies. YAP/TAZ are identified as key regulators of CSCs-related traits on breast cancer cells; however, the upstream regulatory mechanism of Hippo kinases cascade involved in regulating YAP/TAZ remains elusive. In this study, we found that the low expression of RICH1 in breast cancer was associated with poor prognosis. Depletion of RICH1 promoted the stemness and disrupted the normal epithelial architecture of MCF10A cells. Besides, RICH1 inhibited the migration and invasion of breast cancer cells and sensitized these cells to chemotherapeutic drugs. Mechanistically, RICH1 activated the kinases cascade of Hippo signaling via displacing Amot-p80 from the complex with Merlin. Further studies revealed that the deletion of the BAR domain of RICH1 abolished the function of attenuating the binding of Amot-p80 and Merlin, illustrating that the competitive binding to Amot-p80 with Merlin was mediated by the BAR domain of RICH1. In conclusion, our work elucidated the role and molecular mechanism of RICH1 in stemness regulation of breast cancer, and might provide opportunities for CSCs-targeting therapy.
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Affiliation(s)
- Qi Tian
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Huan Gao
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yan Zhou
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Lizhe Zhu
- Department of Breast Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Jiao Yang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Bo Wang
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Peijun Liu
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
| | - Jin Yang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
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21
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Fragment-based exploration of the 14-3-3/Amot-p130 interface. Curr Res Struct Biol 2022; 4:21-28. [PMID: 35036934 PMCID: PMC8743172 DOI: 10.1016/j.crstbi.2021.12.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 12/06/2021] [Accepted: 12/20/2021] [Indexed: 02/06/2023] Open
Abstract
The modulation of protein-protein interactions (PPIs) has developed into a well-established field of drug discovery. Despite the advances achieved in the field, many PPIs are still deemed as ‘undruggable’ targets and the design of PPIs stabilizers remains a significant challenge. The application of fragment-based methods for the identification of drug leads and to evaluate the ‘tractability’ of the desired protein target has seen a remarkable development in recent years. In this study, we explore the molecular characteristics of the 14-3-3/Amot-p130 PPI and the conceptual possibility of targeting this interface using X-ray crystallography fragment-based screening. We report the first structural elucidation of the 14-3-3 binding motif of Amot-p130 and the characterization of the binding mode and affinities involved. We made use of fragments to probe the ‘ligandability’ of the 14-3-3/Amot-p130 composite binding pocket. Here we disclose initial hits with promising stabilizing activity and an early-stage selectivity toward the Amot-p130 motifs over other representatives 14-3-3 partners. Our findings highlight the potential of using fragments to characterize and explore proteins' surfaces and might provide a starting point toward the development of small molecules capable of acting as molecular glues. Phosphorylation of Ser 175 mediates binding of Amot-p130 to 14-3-3. The crystal structure of the 14-3-3σΔC/Amot-p130 peptide complex describes the interface. A fragment-based exploration of the interface assesses ‘ligandability’. Fragments binding at the 14-3-3/Amot-p130 interface display an initial stabilizing activity.
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Key Words
- 14-3-3 /protein-protein interactions stabilizers
- AIP4, Atrophin-1 interacting protein 4
- Amot, Angiomotin
- Amot-p130
- AmotL1/2, Angiomotin-like 1/2
- FBDD, Fragment-based drug discovery
- FP, Fluorescence polarization
- Fragment-based drug discovery
- Lats 1/2, Large tumor suppressor 1/2
- Ligandability
- MST, Microscale thermophoresis
- PPI, Protein-protein interaction
- PTMs, post-translational modifications
- X-ray crystallography
- YAP1, Yes-associated protein 1
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22
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Mikami R, Arisaka Y, Hakariya M, Iwata T, Yui N. Improved epithelial cell-cell adhesion using molecular mobility of supramolecular surfaces. Biomater Sci 2021; 9:7151-7158. [PMID: 34605503 DOI: 10.1039/d1bm01356d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cells can sense the surrounding microenvironmental properties including contact with biomaterials. Although in vitro cell fates in response to the physical properties of cell-adhesive materials have been widely reported, their influence on cell-cell adhesion is unclear. Here, we investigated the role of molecular mobility on polyrotaxane surfaces in epithelial cell-cell adhesion. Polyrotaxane surfaces with high mobility induced cytoplasmic yes-associated protein (YAP) localization in epithelial cells, whereas those with low mobility induced nuclear YAP localization, suggesting that YAP localization is switched by the mobility of the polyrotaxane surface. The cytoplasmic YAP localization increased the expression of tight junction-associated genes. A scratch assay revealed that although the epithelial cells on the low mobile surface rapidly initiated their migration, the cells on the highly mobile surface delayed their migration. Thus, this finding suggests that polyrotaxane surfaces with higher mobility induce cytoplasmic YAP localization, leading to stronger cell-cell adhesion. The polyrotaxane biointerface is promising as a powerful tool to improve the physical immune system and repair biological tissues.
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Affiliation(s)
- Ryo Mikami
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan
| | - Yoshinori Arisaka
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 101-0062, Japan.
| | - Masahiro Hakariya
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan
| | - Takanori Iwata
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan
| | - Nobuhiko Yui
- Department of Organic Biomaterials, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 101-0062, Japan.
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23
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Natural Membrane Differentiates Human Adipose-Derived Mesenchymal Stem Cells to Neurospheres by Mechanotransduction Related to YAP and AMOT Proteins. MEMBRANES 2021; 11:membranes11090687. [PMID: 34564504 PMCID: PMC8469618 DOI: 10.3390/membranes11090687] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/27/2021] [Accepted: 09/03/2021] [Indexed: 12/21/2022]
Abstract
Adipose tissue-derived mesenchymal stem cells (ADMSCs) are promising candidates for regenerative medicine, as they have good cell yield and can differentiate into several cell lines. When induced to the neuronal differentiation, they form neurospheres composed of neural precursors (NPs) that can be an alternative in treating neurodegenerative diseases. This study aimed to characterize NPs from neurospheres obtained after seeding ADMSCs on a natural polyisoprene-based membrane. The ADMSCs were isolated from adipose tissue by enzymatic dissociation, were subjected to trilineage differentiation, and were characterized by flow cytometry for specific ADMSC surface markers. For neuronal differentiation, the cells were seeded on polystyrene flasks coated with the membrane and were characterized by immunocytochemistry and RT-PCR. The results demonstrated that the isolated cells showed characteristics of ADMSCs. At 15 to 25 days, ADMSCs seeded on the natural membrane developed neurospheres. Then, after dissociation, the cells demonstrated characteristic neuronal markers expressed on NPs: nestin, ß-III tubulin, GFAP, NeuN, and the YAP1/AMOT in the cytoplasm. In conclusion, it was demonstrated that this membrane differentiates the ADMSCs to NPs without any induction factors, and suggests that their differentiation mechanisms are related to mechanotransduction regulated by the YAP and AMOT proteins.
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24
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Morciano G, Vezzani B, Missiroli S, Boncompagni C, Pinton P, Giorgi C. An Updated Understanding of the Role of YAP in Driving Oncogenic Responses. Cancers (Basel) 2021; 13:cancers13123100. [PMID: 34205830 PMCID: PMC8234554 DOI: 10.3390/cancers13123100] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/09/2021] [Accepted: 06/17/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary In 2020, the global cancer database GLOBOCAN estimated 19.3 million new cancer cases worldwide. The discovery of targeted therapies may help prognosis and outcome of the patients affected, but the understanding of the plethora of highly interconnected pathways that modulate cell transformation, proliferation, invasion, migration and survival remains an ambitious goal. Here we propose an updated state of the art of YAP as the key protein driving oncogenic response via promoting all those steps at multiple levels. Of interest, the role of YAP in immunosuppression is a field of evolving research and growing interest and this summary about the current pharmacological therapies impacting YAP serves as starting point for future studies. Abstract Yes-associated protein (YAP) has emerged as a key component in cancer signaling and is considered a potent oncogene. As such, nuclear YAP participates in complex and only partially understood molecular cascades that are responsible for the oncogenic response by regulating multiple processes, including cell transformation, tumor growth, migration, and metastasis, and by acting as an important mediator of immune and cancer cell interactions. YAP is finely regulated at multiple levels, and its localization in cells in terms of cytoplasm–nucleus shuttling (and vice versa) sheds light on interesting novel anticancer treatment opportunities and putative unconventional functions of the protein when retained in the cytosol. This review aims to summarize and present the state of the art knowledge about the role of YAP in cancer signaling, first focusing on how YAP differs from WW domain-containing transcription regulator 1 (WWTR1, also named as TAZ) and which upstream factors regulate it; then, this review focuses on the role of YAP in different cancer stages and in the crosstalk between immune and cancer cells as well as growing translational strategies derived from its inhibitory and synergistic effects with existing chemo-, immuno- and radiotherapies.
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New insights into the Hippo/YAP pathway in idiopathic pulmonary fibrosis. Pharmacol Res 2021; 169:105635. [PMID: 33930530 DOI: 10.1016/j.phrs.2021.105635] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 02/07/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a progressive disease characterised by an inexorable decline in lung function. The development of IPF involves multiple positive feedback loops; and a strong support role of the Hippo/YAP signalling pathway, which is essential for regulating cell proliferation and organ size, in IPF pathogenesis has been unveiled recently in cell and animal models. YAP/TAZ contributes to both pulmonary fibrosis and alveolar regeneration via the conventional Hippo/YAP signalling pathway, G protein-coupled receptor signalling, and mechanotransduction. Selectively inhibiting YAP/TAZ in lung fibroblasts may inhibit fibroblast proliferation and extracellular matrix deposition, while activating YAP/TAZ in alveolar epithelial cells may promote alveolar regeneration. In this review, we explore, for the first time, the bidirectional and cell-specific regulation of the Hippo/YAP pathway in IPF pathogenesis and discuss recent research progress and future prospects of IPF treatment based on Hippo/YAP signalling, thus providing a basis for the development of new therapeutic strategies to alleviate or even reverse IPF.
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26
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Wang M, Xu T, Feng W, Liu J, Wang Z. Advances in Understanding the LncRNA-Mediated Regulation of the Hippo Pathway in Cancer. Onco Targets Ther 2021; 14:2397-2415. [PMID: 33854336 PMCID: PMC8039192 DOI: 10.2147/ott.s283157] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 03/08/2021] [Indexed: 12/24/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are a class of RNA molecules that are longer than 200 nucleotides and cannot encode proteins. Over the past decade, lncRNAs have been defined as regulatory elements of multiple biological processes, and their aberrant expression contributes to the development and progression of various malignancies. Recent studies have shown that lncRNAs are involved in key cancer-related signaling pathways, including the Hippo signaling pathway, which plays a prominent role in controlling organ size and tissue homeostasis by regulating cell proliferation, apoptosis, and differentiation. However, dysregulation of this pathway is associated with pathological conditions, especially cancer. Accumulating evidence has revealed that lncRNAs can modulate the Hippo signaling pathway in cancer. In this review, we elaborate on the role of the Hippo signaling pathway and the advances in the understanding of its lncRNA-mediated regulation in cancer. This review provides additional insight into carcinogenesis and will be of great clinical value for developing novel early detection and treatment strategies for this deadly disease.
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Affiliation(s)
- Mengwei Wang
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Tianwei Xu
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Wenyan Feng
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Junxia Liu
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Zhaoxia Wang
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
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Angiomotin Counteracts the Negative Regulatory Effect of Host WWOX on Viral PPxY-Mediated Egress. J Virol 2021; 95:JVI.00121-21. [PMID: 33536174 PMCID: PMC8103691 DOI: 10.1128/jvi.00121-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Filoviridae family members Ebola (EBOV) and Marburg (MARV) viruses and Arenaviridae family member Lassa virus (LASV) are emerging pathogens that can cause hemorrhagic fever and high rates of mortality in humans. A better understanding of the interplay between these viruses and the host will inform about the biology of these pathogens, and may lead to the identification of new targets for therapeutic development. Notably, expression of the filovirus VP40 and LASV Z matrix proteins alone drives assembly and egress of virus-like particles (VLPs). The conserved PPxY Late (L) domain motifs in the filovirus VP40 and LASV Z proteins play a key role in the budding process by mediating interactions with select host WW-domain containing proteins that then regulate virus egress and spread. To identify the full complement of host WW-domain interactors, we utilized WT and PPxY mutant peptides from EBOV and MARV VP40 and LASV Z proteins to screen an array of GST-WW-domain fusion proteins. We identified WW domain-containing oxidoreductase (WWOX) as a novel PPxY-dependent interactor, and we went on to show that full-length WWOX physically interacts with eVP40, mVP40 and LASV Z to negatively regulate egress of VLPs and of a live VSV/Ebola recombinant virus (M40). Interestingly, WWOX is a versatile host protein that regulates multiple signaling pathways and cellular processes via modular interactions between its WW-domains and PPxY motifs of select interacting partners, including host angiomotin (AMOT). Notably, we demonstrated recently that expression of endogenous AMOT not only positively regulates egress of VLPs, but also promotes egress and spread of live EBOV and MARV. Toward the mechanism of action, we show that the competitive and modular interplay among WWOX-AMOT-VP40/Z regulates VLP and M40 virus egress. Thus, WWOX is the newest member of an emerging group of host WW-domain interactors (e.g. BAG3; YAP/TAZ) that negatively regulate viral egress. These findings further highlight the complex interplay of virus-host PPxY/WW-domain interactions and their potential impact on the biology of both the virus and the host during infection.Author Summary Filoviruses (Ebola [EBOV] and Marburg [MARV]) and arenavirus (Lassa virus; LASV) are zoonotic, emerging pathogens that cause outbreaks of severe hemorrhagic fever in humans. A fundamental understanding of the virus-host interface is critical for understanding the biology of these viruses and for developing future strategies for therapeutic intervention. Here, we identified host WW-domain containing protein WWOX as a novel interactor with VP40 and Z, and showed that WWOX inhibited budding of VP40/Z virus-like particles (VLPs) and live virus in a PPxY/WW-domain dependent manner. Our findings are important to the field as they expand the repertoire of host interactors found to regulate PPxY-mediated budding of RNA viruses, and further highlight the competitive interplay and modular virus-host interactions that impact both the virus lifecycle and the host cell.
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Martin E, Girardello R, Dittmar G, Ludwig A. New insights into the organization and regulation of the apical polarity network in mammalian epithelial cells. FEBS J 2021; 288:7073-7095. [DOI: 10.1111/febs.15710] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 01/05/2021] [Accepted: 01/11/2021] [Indexed: 12/11/2022]
Affiliation(s)
- Eleanor Martin
- School of Biological Sciences Nanyang Technological University Singapore City Singapore
- Proteomics of Cellular Signaling Luxembourg Institute of Health Strassen Luxembourg
| | - Rossana Girardello
- School of Biological Sciences Nanyang Technological University Singapore City Singapore
- Proteomics of Cellular Signaling Luxembourg Institute of Health Strassen Luxembourg
| | - Gunnar Dittmar
- Proteomics of Cellular Signaling Luxembourg Institute of Health Strassen Luxembourg
- Department of Life Sciences and Medicine University of Luxembourg Luxembourg
| | - Alexander Ludwig
- School of Biological Sciences Nanyang Technological University Singapore City Singapore
- NTU Institute of Structural Biology (NISB) Experimental Medicine Building Nanyang Technological University Singapore City Singapore
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The Hippo pathway component Wwc2 is a key regulator of embryonic development and angiogenesis in mice. Cell Death Dis 2021; 12:117. [PMID: 33483469 PMCID: PMC7822818 DOI: 10.1038/s41419-021-03409-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 12/27/2020] [Accepted: 01/07/2021] [Indexed: 01/30/2023]
Abstract
The WW-and-C2-domain-containing (WWC) protein family is involved in the regulation of cell differentiation, cell proliferation, and organ growth control. As upstream components of the Hippo signaling pathway, WWC proteins activate the Large tumor suppressor (LATS) kinase that in turn phosphorylates Yes-associated protein (YAP) and its paralog Transcriptional coactivator-with-PDZ-binding motif (TAZ) preventing their nuclear import and transcriptional activity. Inhibition of WWC expression leads to downregulation of the Hippo pathway, increased expression of YAP/TAZ target genes and enhanced organ growth. In mice, a ubiquitous Wwc1 knockout (KO) induces a mild neurological phenotype with no impact on embryogenesis or organ growth. In contrast, we could show here that ubiquitous deletion of Wwc2 in mice leads to early embryonic lethality. Wwc2 KO embryos display growth retardation, a disturbed placenta development, impaired vascularization, and finally embryonic death. A whole-transcriptome analysis of embryos lacking Wwc2 revealed a massive deregulation of gene expression with impact on cell fate determination, cell metabolism, and angiogenesis. Consequently, a perinatal, endothelial-specific Wwc2 KO in mice led to disturbed vessel formation and vascular hypersprouting in the retina. In summary, our data elucidate a novel role for Wwc2 as a key regulator in early embryonic development and sprouting angiogenesis in mice.
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Bauzone M, Souidi M, Dessein AF, Wisztorski M, Vincent A, Gimeno JP, Monté D, Van Seuningen I, Gespach C, Huet G. Cross-talk between YAP and RAR-RXR Drives Expression of Stemness Genes to Promote 5-FU Resistance and Self-Renewal in Colorectal Cancer Cells. Mol Cancer Res 2021; 19:612-622. [PMID: 33472949 DOI: 10.1158/1541-7786.mcr-20-0462] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 11/10/2020] [Accepted: 01/12/2021] [Indexed: 12/15/2022]
Abstract
The mechanisms whereby the Hippo pathway effector YAP regulates cancer cell stemness, plasticity, and chemoresistance are not fully understood. We previously showed that in 5-fluorouracil (5-FU)-resistant colorectal cancer cells, the transcriptional coactivator YAP is differentially regulated at critical transitions connected with reversible quiescence/dormancy to promote metastasis. Here, we found that experimental YAP activation in 5-FU-sensitive and 5-FU-resistant HT29 colorectal cancer cells enhanced nuclear YAP localization and the transcript levels of the retinoic acid (RA) receptors RARα/γ and RAR target genes CYP26A1, ALDH1A3, and LGR5 through RA Response Elements (RARE). In these two cell models, constitutive YAP activation reinforced the expression of the stemness biomarkers and regulators ALDH1A3, LGR5, and OCT4. Conversely, YAP silencing, RAR/RXR inhibition by the pan-RAR antagonist BMS493, and vitamin A depletion downregulated stemness traits and self-renewal. Regarding the mechanisms engaged, proximity-dependent labeling, nuclear YAP pulldown coupled with mass spectrometry, and chromatin immunoprecipitation (ChIP)/re-ChIP experiments revealed: (i) the nuclear colocalization/interaction of YAP with RARγ and RXRs; and (ii) combined genomic co-occupancy of YAP, RARα/γ, and RXRα interactomes at proximal RAREs of LGR5 and ALDH1A3 promoters. Moreover, activation of the YAP/RAR-RXR cross-talk in colorectal cancer cells promoted RAR self-activation loops via vitamin A metabolism, RA, and active RAR ligands generated by ALDH1A3. Together, our data identify YAP as a bona fide RAR-RXR transcriptional coactivator that acts through RARE-activated stemness genes. IMPLICATIONS: Targeting the newly identified YAP/RAR-RXR cross-talk implicated in cancer cell stemness maintenance may lead to multitarget combination therapies for patients with colorectal cancer.
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Affiliation(s)
- Marjolaine Bauzone
- Université Lille, CNRS, Inserm, CHU Lille, UMR9020-UMR1277 - CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille, France
| | - Mouloud Souidi
- Université Lille, CNRS, Inserm, CHU Lille, UMR9020-UMR1277 - CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille, France
| | - Anne-Frédérique Dessein
- Université Lille, CNRS, Inserm, CHU Lille, UMR9020-UMR1277 - CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille, France.,Centre de Biopathologie, Lille CHU, Lille, France
| | - Maxence Wisztorski
- Université Lille, Inserm, CHU Lille, U1192 - Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, Lille, France
| | - Audrey Vincent
- Université Lille, CNRS, Inserm, CHU Lille, UMR9020-UMR1277 - CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille, France
| | - Jean-Pascal Gimeno
- Université Lille, Inserm, CHU Lille, U1192 - Protéomique Réponse Inflammatoire Spectrométrie de Masse - PRISM, Lille, France
| | - Didier Monté
- CNRS ERL9002 Integrative Structural Biology, Lille, France.,Université Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France
| | - Isabelle Van Seuningen
- Université Lille, CNRS, Inserm, CHU Lille, UMR9020-UMR1277 - CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille, France
| | - Christian Gespach
- Sorbonne Université, Inserm U938, Team TGFβ Signaling in Cellular Plasticity and Cancer, Centre de Recherche Saint-Antoine, CRSA, Paris, France
| | - Guillemette Huet
- Université Lille, CNRS, Inserm, CHU Lille, UMR9020-UMR1277 - CANTHER - Cancer Heterogeneity, Plasticity and Resistance to Therapies, Lille, France. .,Centre de Biopathologie, Lille CHU, Lille, France
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Matarrese P, Vona R, Ascione B, Paggi MG, Mileo AM. Physical Interaction between HPV16E7 and the Actin-Binding Protein Gelsolin Regulates Epithelial-Mesenchymal Transition via HIPPO-YAP Axis. Cancers (Basel) 2021; 13:cancers13020353. [PMID: 33477952 PMCID: PMC7836002 DOI: 10.3390/cancers13020353] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 01/15/2021] [Indexed: 02/07/2023] Open
Abstract
Human papillomavirus 16 (HPV16) exhibits a strong oncogenic potential mainly in cervical, anogenital and oropharyngeal cancers. The E6 and E7 viral oncoproteins, acting via specific interactions with host cellular targets, are required for cell transformation and maintenance of the transformed phenotype as well. We previously demonstrated that HPV16E7 interacts with the actin-binding protein gelsolin, involved in cytoskeletal F-actin dynamics. Herein, we provide evidence that the E7/gelsolin interaction promotes the cytoskeleton rearrangement leading to epithelial-mesenchymal transition-linked morphological and transcriptional changes. E7-mediated cytoskeletal actin remodeling induces the HIPPO pathway by promoting the cytoplasmic retention of inactive P-YAP. These results suggest that YAP could play a role in the "de-differentiation" process underlying the acquisition of a more aggressive phenotype in HPV16-transformed cells. A deeper comprehension of the multifaceted mechanisms elicited by the HPV infection is vital for providing novel strategies to block the biological and clinical features of virus-related cancers.
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Affiliation(s)
- Paola Matarrese
- Center for Gender-Specific Medicine, Oncology Unit, Istituto Superiore di Sanità, 00161 Rome, Italy; (P.M.); (R.V.); (B.A.)
| | - Rosa Vona
- Center for Gender-Specific Medicine, Oncology Unit, Istituto Superiore di Sanità, 00161 Rome, Italy; (P.M.); (R.V.); (B.A.)
| | - Barbara Ascione
- Center for Gender-Specific Medicine, Oncology Unit, Istituto Superiore di Sanità, 00161 Rome, Italy; (P.M.); (R.V.); (B.A.)
| | - Marco G. Paggi
- Cellular Networks and Molecular Therapeutic Targets, Proteomics Unit, IRCCS—Regina Elena National Cancer Institute Rome, 00144 Rome, Italy
- Correspondence: (M.G.P.); (A.M.M.); Tel.: +39-0652662550 (M.G.P. & A.M.M.)
| | - Anna Maria Mileo
- Tumor Immunology and Immunotherapy Unit, IRCCS—Regina Elena National Cancer Institute Rome, 00144 Rome, Italy
- Correspondence: (M.G.P.); (A.M.M.); Tel.: +39-0652662550 (M.G.P. & A.M.M.)
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Wigerius M, Quinn D, Fawcett JP. Emerging roles for angiomotin in the nervous system. Sci Signal 2020; 13:13/655/eabc0635. [PMID: 33109746 DOI: 10.1126/scisignal.abc0635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Angiomotins are a family of molecular scaffolding proteins that function to organize contact points (called tight junctions in vertebrates) between adjacent cells. Some angiomotin isoforms bind to the actin cytoskeleton and are part of signaling pathways that influence cell morphology and migration. Others cooperate with components of the Hippo signaling pathway and the associated networks to control organ growth. The 130-kDa isoform, AMOT-p130, has critical roles in neural stem cell differentiation, dendritic patterning, and synaptic maturation-attributes that are essential for normal brain development and are consistent with its association with autism. Here, we review and discuss the evidence that supports a role for AMOT-p130 in neuronal development in the central nervous system.
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Affiliation(s)
- Michael Wigerius
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada.
| | - Dylan Quinn
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - James P Fawcett
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada. .,Department of Surgery, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
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Rouaud F, Sluysmans S, Flinois A, Shah J, Vasileva E, Citi S. Scaffolding proteins of vertebrate apical junctions: structure, functions and biophysics. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2020; 1862:183399. [DOI: 10.1016/j.bbamem.2020.183399] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 06/05/2020] [Accepted: 06/11/2020] [Indexed: 12/11/2022]
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The Mammalian Crumbs Complex Defines a Distinct Polarity Domain Apical of Epithelial Tight Junctions. Curr Biol 2020; 30:2791-2804.e6. [PMID: 32531288 DOI: 10.1016/j.cub.2020.05.032] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 03/26/2020] [Accepted: 05/07/2020] [Indexed: 12/28/2022]
Abstract
Epithelial apico-basal polarity is established through the asymmetric cortical distribution of the Par, Crumbs and Scribble polarity modules. Apical (Par and Crumbs) and basolateral (Scribble) polarity modules overlap at the apical-lateral border, which, in mammals, is defined by the apical junctional complex (AJC). The AJC is composed of tight junctions (TJ) and adherens junctions (AJ) and plays fundamental roles in epithelial morphogenesis and plasticity. However, the molecular composition and precise sub-junctional organization of the AJC and its associated polarity regulators are not well defined. Here, we used the peroxidase APEX2 for quantitative proximity proteomics (QPP) and electron microscopy (EM) imaging to dissect the architecture of the AJC in fully polarized MDCK-II cells. We present a high-confidence proteome of the apical-lateral border in which TJ and AJ components and apical and lateral compartment markers are spatially resolved. We further demonstrate that the Crumbs complex (Pals1, PatJ, Lin7c, and Crumbs3) defines a hitherto unidentified membrane compartment apical of TJ, which we coin the vertebrate marginal zone (VMZ). QPP, imaging, and immunoprecipitation assays showed that the HOMER scaffolding proteins, PKN2 and PTPN13, and the membrane-proximal HIPPO pathway proteins ARHGAP29 and STXBP4 are recruited to the VMZ via the PDZ domains of PatJ. Taken together, our work defines the spatial and molecular organization of the apical-lateral border in mammalian epithelial cells, reveals an intriguing molecular and spatial conservation of invertebrate and vertebrate cell polarity protein domains, and identifies a VMZ-associated protein network implicated in HIPPO signaling and the control of the cortical actin cytoskeleton.
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Hoxha S, Shepard A, Troutman S, Diao H, Doherty JR, Janiszewska M, Witwicki RM, Pipkin ME, Ja WW, Kareta MS, Kissil JL. YAP-Mediated Recruitment of YY1 and EZH2 Represses Transcription of Key Cell-Cycle Regulators. Cancer Res 2020; 80:2512-2522. [PMID: 32409309 DOI: 10.1158/0008-5472.can-19-2415] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 03/11/2020] [Accepted: 04/22/2020] [Indexed: 11/16/2022]
Abstract
The Hippo pathway regulates cell proliferation and organ size through control of the transcriptional regulators YAP (yes-associated protein) and TAZ. Upon extracellular stimuli such as cell-cell contact, the pathway negatively regulates YAP through cytoplasmic sequestration. Under conditions of low cell density, YAP is nuclear and associates with enhancer regions and gene promoters. YAP is mainly described as a transcriptional activator of genes involved in cell proliferation and survival. Using a genome-wide approach, we show here that, in addition to its known function as a transcriptional activator, YAP functions as a transcriptional repressor by interacting with the multifunctional transcription factor Yin Yang 1 (YY1) and Polycomb repressive complex member enhancer of zeste homologue 2 (EZH2). YAP colocalized with YY1 and EZH2 on the genome to transcriptionally repress a broad network of genes mediating a host of cellular functions, including repression of the cell-cycle kinase inhibitor p27, whose role is to functionally promote contact inhibition. This work unveils a broad and underappreciated aspect of YAP nuclear function as a transcriptional repressor and highlights how loss of contact inhibition in cancer is mediated in part through YAP repressive function. SIGNIFICANCE: This study provides new insights into YAP as a broad transcriptional repressor of key regulators of the cell cycle, in turn influencing contact inhibition and tumorigenesis.
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Affiliation(s)
- Sany Hoxha
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida
| | - Alyssa Shepard
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida
| | - Scott Troutman
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida
| | - Huitian Diao
- Department of Immunology and Microbiology, The Scripps Research Institute, Jupiter, Florida
| | - Joanne R Doherty
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida
| | | | - Robert M Witwicki
- Genetic Perturbation Screening Core, The Scripps Research Institute, Jupiter, Florida
| | - Matthew E Pipkin
- Department of Immunology and Microbiology, The Scripps Research Institute, Jupiter, Florida
| | - William W Ja
- Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida
| | - Michael S Kareta
- Genetics and Genomics Group, Sanford Research, Sioux Falls, South Dakota
| | - Joseph L Kissil
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, Florida.
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Han Z, Ruthel G, Dash S, Berry CT, Freedman BD, Harty RN, Shtanko O. Angiomotin regulates budding and spread of Ebola virus. J Biol Chem 2020; 295:8596-8601. [PMID: 32381509 DOI: 10.1074/jbc.ac120.013171] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 05/05/2020] [Indexed: 12/17/2022] Open
Abstract
The Ebola virus (EBOV) VP40 matrix protein (eVP40) orchestrates assembly and budding of virions in part by hijacking select WW-domain-bearing host proteins via its PPxY late (L)-domain motif. Angiomotin (Amot) is a multifunctional PPxY-containing adaptor protein that regulates angiogenesis, actin dynamics, and cell migration/motility. Amot also regulates the Hippo signaling pathway via interactions with the WW-domain-containing Hippo effector protein Yes-associated protein (YAP). In this report, we demonstrate that endogenous Amot is crucial for positively regulating egress of eVP40 virus-like particles (VLPs) and for egress and spread of authentic EBOV. Mechanistically, we show that ectopic YAP expression inhibits eVP40 VLP egress and that Amot co-expression rescues budding of eVP40 VLPs in a dose-dependent and PPxY-dependent manner. Moreover, results obtained with confocal and total internal reflection fluorescence microscopy suggested that Amot's role in actin organization and dynamics also contributes to promoting eVP40-mediated egress. In summary, these findings reveal a functional and competitive interplay between virus and host proteins involving the multifunctional PPxY-containing adaptor Amot, which regulates both the Hippo pathway and actin dynamics. We propose that our results have wide-ranging implications for understanding the biology and pathology of EBOV infections.
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Affiliation(s)
- Ziying Han
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Gordon Ruthel
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Shantoshini Dash
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Corbett T Berry
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Bruce D Freedman
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ronald N Harty
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Olena Shtanko
- Host-Pathogen Interactions, Texas Biomedical Research Institute, San Antonio, Texas, USA
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Manning SA, Kroeger B, Harvey KF. The regulation of Yorkie, YAP and TAZ: new insights into the Hippo pathway. Development 2020; 147:147/8/dev179069. [PMID: 32341025 DOI: 10.1242/dev.179069] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The Hippo pathway is a highly conserved signalling pathway that regulates multiple biological processes, including organ size control and cell fate. Since its discovery, genetic and biochemical studies have elucidated several key signalling steps important for pathway activation and deactivation. In recent years, technical advances in microscopy and genome modification have allowed new insights into Hippo signalling to be revealed. These studies have highlighted that the nuclear-cytoplasmic shuttling behaviour of the Hippo pathway transcriptional co-activators Yorkie, YAP and TAZ is far more dynamic than previously appreciated, and YAP and TAZ are also regulated by liquid-liquid phase separation. Here, we review our current understanding of Yorkie, YAP and TAZ regulation, with a focus on recent microscopy-based studies.
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Affiliation(s)
- Samuel A Manning
- Department of Anatomy and Developmental Biology, and Biomedicine Discovery Institute, Monash University, Clayton, Australia 3800
| | - Benjamin Kroeger
- Department of Anatomy and Developmental Biology, and Biomedicine Discovery Institute, Monash University, Clayton, Australia 3800
| | - Kieran F Harvey
- Department of Anatomy and Developmental Biology, and Biomedicine Discovery Institute, Monash University, Clayton, Australia 3800 .,Peter MacCallum Cancer Centre, 305 Grattan St, Melbourne, Victoria, Australia 3000.,Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Victoria, Australia 3010
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38
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Kang PH, Schaffer DV, Kumar S. Angiomotin links ROCK and YAP signaling in mechanosensitive differentiation of neural stem cells. Mol Biol Cell 2020; 31:386-396. [PMID: 31940260 PMCID: PMC7183791 DOI: 10.1091/mbc.e19-11-0602] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Mechanical cues regulate the function of a broad range of stem cells in culture and in tissue. For example, soft substrates promote the neuronal differentiation of neural stem cells (NSCs) by suppressing cytoskeletal contractility. However, the mechanisms that link cytoskeletal signaling to the transcriptional regulatory processes that ultimately govern stiffness-dependent NSC fate commitment are not fully understood. Here, we show that Angiomotin (AMOT), which can bind both F-actin and the neurosuppressive transcriptional coactivator Yes-associated protein (YAP), is critical for mechanotransduction in NSCs. On soft substrates, loss of AMOT substantially reduces neurogenesis, whereas on stiff substrates, loss of AMOT negates the rescue of neurogenesis normally induced by pharmacologic inhibition of myosin activity. Furthermore, overexpression of a phospho-mimetic S175E AMOT mutant, which has been established to enhance AMOT–YAP binding, increases β-catenin activity and rescues neurogenesis on stiff substrates. Together, our data identify AMOT as an important intermediate signal transducer that allows NSCs to sense and respond to extracellular stiffness cues.
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Affiliation(s)
- Phillip H Kang
- Graduate Program in Bioengineering, University of California, Berkeley-University of California, San Francisco.,Department of Bioengineering, and
| | - David V Schaffer
- Graduate Program in Bioengineering, University of California, Berkeley-University of California, San Francisco.,Department of Bioengineering, and.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720.,Molecular Biophysics and Integrated Bioimaging Division and.,Helen Wills Neuroscience Institute, Berkeley, CA 94720
| | - Sanjay Kumar
- Graduate Program in Bioengineering, University of California, Berkeley-University of California, San Francisco.,Department of Bioengineering, and.,Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA 94720.,Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
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Han Z, Dash S, Sagum CA, Ruthel G, Jaladanki CK, Berry CT, Schwoerer MP, Harty NM, Freedman BD, Bedford MT, Fan H, Sidhu SS, Sudol M, Shtanko O, Harty RN. Modular mimicry and engagement of the Hippo pathway by Marburg virus VP40: Implications for filovirus biology and budding. PLoS Pathog 2020; 16:e1008231. [PMID: 31905227 PMCID: PMC6977764 DOI: 10.1371/journal.ppat.1008231] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 01/23/2020] [Accepted: 11/21/2019] [Indexed: 01/16/2023] Open
Abstract
Ebola (EBOV) and Marburg (MARV) are members of the Filoviridae family, which continue to emerge and cause sporadic outbreaks of hemorrhagic fever with high mortality rates. Filoviruses utilize their VP40 matrix protein to drive virion assembly and budding, in part, by recruitment of specific WW-domain-bearing host proteins via its conserved PPxY Late (L) domain motif. Here, we screened an array of 115 mammalian, bacterially expressed and purified WW-domains using a PPxY-containing peptide from MARV VP40 (mVP40) to identify novel host interactors. Using this unbiased approach, we identified Yes Associated Protein (YAP) and Transcriptional co-Activator with PDZ-binding motif (TAZ) as novel mVP40 PPxY interactors. YAP and TAZ function as downstream transcriptional effectors of the Hippo signaling pathway that regulates cell proliferation, migration and apoptosis. We demonstrate that ectopic expression of YAP or TAZ along with mVP40 leads to significant inhibition of budding of mVP40 VLPs in a WW-domain/PPxY dependent manner. Moreover, YAP colocalized with mVP40 in the cytoplasm, and inhibition of mVP40 VLP budding was more pronounced when YAP was localized predominantly in the cytoplasm rather than in the nucleus. A key regulator of YAP nuclear/cytoplasmic localization and function is angiomotin (Amot); a multi-PPxY containing protein that strongly interacts with YAP WW-domains. Interestingly, we found that expression of PPxY-containing Amot rescued mVP40 VLP egress from either YAP- or TAZ-mediated inhibition in a PPxY-dependent manner. Importantly, using a stable Amot-knockdown cell line, we found that expression of Amot was critical for efficient egress of mVP40 VLPs as well as egress and spread of authentic MARV in infected cell cultures. In sum, we identified novel negative (YAP/TAZ) and positive (Amot) regulators of MARV VP40-mediated egress, that likely function in part, via competition between host and viral PPxY motifs binding to modular host WW-domains. These findings not only impact our mechanistic understanding of virus budding and spread, but also may impact the development of new antiviral strategies. By screening an array of 115 mammalian WW-domains with the PPxY motif from MARV VP40 (mVP40), we identified YAP1 and TAZ, transcriptional effectors of the Hippo pathway, as mVP40 interactors, and demonstrated that ectopically expressed YAP1 or TAZ inhibited budding of mVP40 virus-like particles (VLPs) in a WW-domain/PPxY dependent manner. Angiomotin (Amot), a multi-PPxY containing regulator of YAP1 nuclear/cytoplasmic localization and function, rescued mVP40 VLP egress from either YAP1- or TAZ-mediated inhibition in a PPxY-dependent manner. Indeed, endogenous Amot expression was critical for egress of mVP40 VLPs and authentic MARV. In sum, we have revealed a link between the Hippo pathway and filovirus egress by identifying negative (YAP/TAZ) and positive (Amot) regulators of MARV VP40-mediated egress.
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Affiliation(s)
- Ziying Han
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Shantoshini Dash
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Cari A. Sagum
- Department of Epigenetics & Molecular Carcinogenesis, M.D. Anderson Cancer Center, University of Texas, Smithville, Texas, United States of America
| | - Gordon Ruthel
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Chaitanya K. Jaladanki
- Department of Physiology and Mechanobiology Institute at National University of Singapore, Institute for Molecular and Cell Biology, IMCB, and Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Corbett T. Berry
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Michael P. Schwoerer
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Nina M. Harty
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Bruce D. Freedman
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Mark T. Bedford
- Department of Epigenetics & Molecular Carcinogenesis, M.D. Anderson Cancer Center, University of Texas, Smithville, Texas, United States of America
| | - Hao Fan
- Department of Physiology and Mechanobiology Institute at National University of Singapore, Institute for Molecular and Cell Biology, IMCB, and Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Sachdev S. Sidhu
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Marius Sudol
- Department of Physiology and Mechanobiology Institute at National University of Singapore, Institute for Molecular and Cell Biology, IMCB, and Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Olena Shtanko
- Texas Biomedical Research Institute, San Antonio, Texas, United States of America
| | - Ronald N. Harty
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
- * E-mail:
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Brunner P, Hastar N, Kaehler C, Burdzinski W, Jatzlau J, Knaus P. AMOT130 drives BMP-SMAD signaling at the apical membrane in polarized cells. Mol Biol Cell 2019; 31:118-130. [PMID: 31800378 PMCID: PMC6960409 DOI: 10.1091/mbc.e19-03-0179] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The large isoform of the transmembrane protein angiomotin (AMOT130) controls cell proliferation and migration of many cell types. AMOT130 associates to the actin cytoskeleton and regulates tight-junction maintenance and signaling often via endosomal uptake of polarity proteins at tight junctions. AMOT130 is highly polarized and present only at the apical side of polarized cells. Here we show that bone morphogenetic protein (BMP) growth factor signaling and AMOT function are interlinked in apical-basal polarized cells. BMP6 controls AMOT internalization and endosomal trafficking in epithelial cells. AMOT130 interacts with the BMP receptor BMPR2 and facilitates SMAD activation and target gene expression. We further demonstrate that this effect of AMOT on BMP-SMAD signaling is dependent on endocytosis and specific to the apical side of polarized epithelial and endothelial cells. Knockdown of AMOT reduces SMAD signaling only from the apical side of polarized cells, while basolateral BMP-SMAD signaling is unaffected. This allows for the first time interference with BMP signaling in a polarized manner and identifies AMOT130 as a novel BMP signaling regulator.
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Affiliation(s)
- Patrizia Brunner
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.,Berlin School of Integrative Oncology, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Nurcan Hastar
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Christian Kaehler
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Wiktor Burdzinski
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Jerome Jatzlau
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Petra Knaus
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
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41
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Flinn MA, Link BA, O'Meara CC. Upstream regulation of the Hippo-Yap pathway in cardiomyocyte regeneration. Semin Cell Dev Biol 2019; 100:11-19. [PMID: 31606277 DOI: 10.1016/j.semcdb.2019.09.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/27/2019] [Accepted: 09/11/2019] [Indexed: 12/17/2022]
Abstract
The response of the adult mammalian heart to injury such as myocardial infarction has long been described as primarily fibrotic scarring and adverse remodeling with little to no regeneration of cardiomyocytes. Emerging studies have challenged this paradigm by demonstrating that, indeed, adult mammalian cardiomyocytes are capable of completing cytokinesis albeit at levels vastly insufficient to compensate for the loss of functional cardiomyocytes following ischemic injury. Thus, there is great interest in identifying mechanisms to guide adult cardiomyocyte cell cycle re-entry and facilitate endogenous heart regeneration. The Hippo signaling pathway is a core kinase cascade that functions to suppress the transcriptional co-activators Yap and Taz by phosphorylation and therefore cytoplasmic retention or phospho-degradation. This pathway has recently sparked interest in the field of cardiac regeneration as inhibition of Hippo kinase signaling or overdriving the transcriptional co-activator, Yap, significantly promotes proliferation of terminally differentiated adult mammalian cardiomyocytes and can restore function in failing mouse hearts. Thus, the Hippo pathway is an attractive therapeutic target for promoting cardiomyocyte renewal and cardiac regeneration. Although the core kinases and transcriptional activators of the Hippo pathway have been studied extensively over the last twenty years, the regulatory inputs of this pathway, particularly in vertebrates, are poorly understood. Recent studies have elucidated several upstream regulatory inputs to the Hippo pathway in adult mammalian cardiomyocytes that influence cell proliferation and heart regeneration. Considering upstream inputs to the Hippo pathway are thought to be context and cell type specific, targeting these various components could serve as a therapeutic approach for refining Hippo-Yap signaling in the heart. Here, we provide an overview of the emerging regulatory inputs to the Hippo pathway as they relate to mammalian cardiomyocytes and heart regeneration.
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Affiliation(s)
- Michael A Flinn
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, USA; Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Brian A Link
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA; Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Caitlin C O'Meara
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, USA; Cardiovascular Center, Medical College of Wisconsin, Milwaukee, WI, USA; Genomics Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, WI, USA.
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42
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Dasgupta I, McCollum D. Control of cellular responses to mechanical cues through YAP/TAZ regulation. J Biol Chem 2019; 294:17693-17706. [PMID: 31594864 DOI: 10.1074/jbc.rev119.007963] [Citation(s) in RCA: 173] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
To perceive their three-dimensional environment, cells and tissues must be able to sense and interpret various physical forces like shear, tensile, and compression stress. These forces can be generated both internally and externally in response to physical properties, like substrate stiffness, cell contractility, and forces generated by adjacent cells. Mechanical cues have important roles in cell fate decisions regarding proliferation, survival, and differentiation as well as the processes of tissue regeneration and wound repair. Aberrant remodeling of the extracellular space and/or defects in properly responding to mechanical cues likely contributes to various disease states, such as fibrosis, muscle diseases, and cancer. Mechanotransduction involves the sensing and translation of mechanical forces into biochemical signals, like activation of specific genes and signaling cascades that enable cells to adapt to their physical environment. The signaling pathways involved in mechanical signaling are highly complex, but numerous studies have highlighted a central role for the Hippo pathway and other signaling networks in regulating the YAP and TAZ (YAP/TAZ) proteins to mediate the effects of mechanical stimuli on cellular behavior. How mechanical cues control YAP/TAZ has been poorly understood. However, rapid progress in the last few years is beginning to reveal a surprisingly diverse set of pathways for controlling YAP/TAZ. In this review, we will focus on how mechanical perturbations are sensed through changes in the actin cytoskeleton and mechanosensors at focal adhesions, adherens junctions, and the nuclear envelope to regulate YAP/TAZ.
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Affiliation(s)
- Ishani Dasgupta
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Dannel McCollum
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605
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43
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Fomicheva M, Tross EM, Macara IG. Polarity proteins in oncogenesis. Curr Opin Cell Biol 2019; 62:26-30. [PMID: 31509786 DOI: 10.1016/j.ceb.2019.07.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 07/19/2019] [Accepted: 07/24/2019] [Indexed: 02/02/2023]
Abstract
Most human cancers arise from epithelial tissues, which are apical-basally polarized and possess intercellular adhesive junctions. Epithelial cells grow to characteristic densities, often from proliferative progenitors, which arrest as they mature. Homeostatic mechanisms can maintain this characteristic density if it is exceeded (crowding) or is too low (e.g. in response to wounding). During tumor initiation and progression this homeostatic mechanism is lost. Some aspects of cell polarity are also lost, although many carcinomas retain intercellular junctions and even apical domains. In other cases, and particularly in recurrent tumors, however, the cells become predominantly mesenchymal. A major question, still only incompletely answered, is whether the proteins that determine cell polarity function as tumor suppressors or tumor promoters. Here we discuss recent advances in understanding the role of polarity proteins and homeostasis in cancer.
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Affiliation(s)
- Maria Fomicheva
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37424, USA
| | - Erica M Tross
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37424, USA
| | - Ian G Macara
- Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, TN 37424, USA.
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Huang C, Zhang W, Zhu Y. Drug-eluting stent specifically designed to target vascular smooth muscle cell phenotypic modulation attenuated restenosis through the YAP pathway. Am J Physiol Heart Circ Physiol 2019; 317:H541-H551. [PMID: 31298560 DOI: 10.1152/ajpheart.00089.2019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Vascular smooth muscle cell (SMC) phenotypic modulation contributes to the development of restenosis. A sorafenib-eluting stent was specifically designed to target SMC phenotypic modulation to inhibit in-stent restenosis in the present study. SMC contractile protein from the freshly isolated rat aorta was expressed at a high level, but its expression was dramatically reduced after SMCs were cultured in 10% FBS for 1 wk. After sorafenib treatment, SMC contractile protein expression was markedly upregulated. We further observed that Yes-associated protein (YAP) expression was attenuated after sorafenib treatment in a dose-dependent manner. Overexpression of YAP by lentivirus reversed the expression of sorafenib-induced SMC contractile protein and increased the expression of cyclin D. Mechanistically, sorafenib regulated the serum response factor-myocardin (SRF-Myocd) complex through competitive binding of YAP to Myocd and increased SRF binding to CArG-containing regions of SMC-specific contractile genes within intact chromatin, thereby controlling the activity of smooth muscle-specific gene transcription. In a rabbit carotid model, the sorafenib-eluting stent (SFES) dramatically inhibited in-stent restenosis and upregulated SMC contractile protein expression. Overexpression of YAP blocked the antirestenosis effect of SFES and repressed contractile smooth muscle-specific genes in vivo, indicating that SFES attenuated in-stent restenosis through YAP-mediated SMC phenotypic modulation. We demonstrated that SFES attenuated in-stent restenosis through YAP-mediated SMC phenotypic modulation. Targeting SMC phenotypic modulation by drug-eluting stent represents an attractive therapeutic approach for the treatment of occlusive vascular diseases.NEW & NOTEWORTHY In the present study, we demonstrated that sorafenib regulates smooth muscle cell (SMC) phenotypic modulation from a proliferative to a contractile state. Sorafenib induced a myocardin-serum response factor interaction and increased SMC contractile gene transcription through the Yes-associated protein pathway. Moreover, local delivery of sorafenib regulating SMC phenotypic modulation represents a promising strategy in the design of drug-eluting stents.
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Affiliation(s)
- Chen Huang
- Department of Vascular Surgery, Affiliated Hospital of Nantong University, Nantong, China
| | - Wenwen Zhang
- Department of Vascular Surgery, the Second Affiliated Hospital of Nanchang University Medical School, Nanchang, China
| | - Yuelin Zhu
- Department of Vascular Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
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Mandati V, Del Maestro L, Dingli F, Lombard B, Loew D, Molinie N, Romero S, Bouvard D, Louvard D, Gautreau AM, Pasmant E, Lallemand D. Phosphorylation of Merlin by Aurora A kinase appears necessary for mitotic progression. J Biol Chem 2019; 294:12992-13005. [PMID: 31296571 DOI: 10.1074/jbc.ra118.006937] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 06/25/2019] [Indexed: 01/01/2023] Open
Abstract
Although Merlin's function as a tumor suppressor and regulator of mitogenic signaling networks such as the Ras/rac, Akt, and Hippo pathways is well-documented, in mammals as well as in insects, its role during cell cycle progression remains unclear. In this study, using a combination of approaches, including FACS analysis, time-lapse imaging, immunofluorescence microscopy, and co-immunoprecipitation, we show that Ser-518 of Merlin is a substrate of the Aurora protein kinase A during mitosis and that its phosphorylation facilitates the phosphorylation of a newly discovered site, Thr-581. We found that the expression in HeLa cells of a Merlin variant that is phosphorylation-defective on both sites leads to a defect in centrosomes and mitotic spindles positioning during metaphase and delays the transition from metaphase to anaphase. We also show that the dual mitotic phosphorylation not only reduces Merlin binding to microtubules but also timely modulates ezrin interaction with the cytoskeleton. Finally, we identify several point mutants of Merlin associated with neurofibromatosis type 2 that display an aberrant phosphorylation profile along with defective α-tubulin-binding properties. Altogether, our findings of an Aurora A-mediated interaction of Merlin with α-tubulin and ezrin suggest a potential role for Merlin in cell cycle progression.
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Affiliation(s)
- Vinay Mandati
- CNRS, UMR144, Institute Curie, PSL Research University, F-75005 Paris, France
| | | | - Florent Dingli
- Laboratoire de Spectrométrie de Masse Protéomique, Institute Curie, PSL Research University, Paris, France
| | - Bérangère Lombard
- Laboratoire de Spectrométrie de Masse Protéomique, Institute Curie, PSL Research University, Paris, France
| | - Damarys Loew
- Laboratoire de Spectrométrie de Masse Protéomique, Institute Curie, PSL Research University, Paris, France
| | - Nicolas Molinie
- BIOC, CNRS UMR7654, Institut Polytechnique de Paris, F-91128 Palaiseau, France
| | - Stephane Romero
- BIOC, CNRS UMR7654, Institut Polytechnique de Paris, F-91128 Palaiseau, France
| | - Daniel Bouvard
- INSERM, Institut Albert Bonniot U823, F-38042 Grenoble, France
| | - Daniel Louvard
- CNRS, UMR144, Institute Curie, PSL Research University, F-75005 Paris, France
| | - Alexis M Gautreau
- BIOC, CNRS UMR7654, Institut Polytechnique de Paris, F-91128 Palaiseau, France
| | - Eric Pasmant
- Institut Cochin, INSERM U1016, Université Paris Descartes, Sorbonne Paris Cité, 75014 Paris, France
| | - Dominique Lallemand
- CNRS, UMR144, Institute Curie, PSL Research University, F-75005 Paris, France.
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Super-Enhancer-Associated LncRNA UCA1 Interacts Directly with AMOT to Activate YAP Target Genes in Epithelial Ovarian Cancer. iScience 2019; 17:242-255. [PMID: 31307004 PMCID: PMC6629722 DOI: 10.1016/j.isci.2019.06.025] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 05/06/2019] [Accepted: 06/14/2019] [Indexed: 01/09/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) have emerged as critical regulators of tumorigenesis, and yet their mechanistic roles remain challenging to characterize. Here, we integrate functional proteomics with lncRNA-interactome profiling to characterize Urothelial Cancer Associated 1 (UCA1), a candidate driver of ovarian cancer development. Reverse phase protein array (RPPA) analysis indicates that UCA1 activates transcription coactivator YAP and its target genes. In vivo RNA antisense purification (iRAP) of UCA1 interacting proteins identified angiomotin (AMOT), a known YAP regulator, as a direct binding partner. Loss-of-function experiments show that AMOT mediates YAP activation by UCA1, as UCA1 enhances the AMOT-YAP interaction to promote YAP dephosphorylation and nuclear translocation. Together, we characterize UCA1 as a lncRNA regulator of Hippo-YAP signaling and highlight the UCA1-AMOT-YAP signaling axis in ovarian cancer development. A super-enhancer drives the expression of lncRNA UCA1 in EOC Inactivation of UCA1 impairs tumor growth in vivo UCA1 activates transcription coactivator YAP and its target genes UCA1 promotes YAP dephosphorylation and nuclear translocation via AMOTp130
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47
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Won GW, Park SH, Park J, Lee Y, Lee YH. Mammalian Hippo kinase pathway is downregulated by BCL-2 via protein degradation. Biochem Biophys Res Commun 2019; 512:87-92. [DOI: 10.1016/j.bbrc.2019.03.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 03/02/2019] [Indexed: 01/27/2023]
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48
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Manmadhan S, Ehmer U. Hippo Signaling in the Liver - A Long and Ever-Expanding Story. Front Cell Dev Biol 2019; 7:33. [PMID: 30931304 PMCID: PMC6423448 DOI: 10.3389/fcell.2019.00033] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 02/25/2019] [Indexed: 12/27/2022] Open
Abstract
The first description of Hippo signaling in mammals a little more than 10 years ago showed a striking phenotype in the liver, linking the role of this signaling pathway to organ size control and carcinogenesis. Even though Hippo signaling has been extensively studied in the liver and other organs over the recent years, many open questions remain in our understanding of its role in hepatic physiology and disease. The functions of Hippo signaling extend well beyond cancer and organ size determination: components of upstream Hippo signaling and the downstream effectors YAP and TAZ are involved in a multitude of cell and non-cell autonomous functions including cell proliferation, survival, development, differentiation, metabolism, and cross-talk with the immune system. Moreover, regulation and biological functions of Hippo signaling are often organ or even cell type specific – making its role even more complex. Here, we give a concise overview of the role of Hippo signaling in the liver with a focus on cell-type specific functions. We outline open questions and future research directions that will help to improve our understanding of this important pathway in liver disease.
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Affiliation(s)
- Saumya Manmadhan
- Department of Medicine II, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | - Ursula Ehmer
- Department of Medicine II, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
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49
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Lee YA, Noon LA, Akat KM, Ybanez MD, Lee TF, Berres ML, Fujiwara N, Goossens N, Chou HI, Parvin-Nejad FP, Khambu B, Kramer EGM, Gordon R, Pfleger C, Germain D, John GR, Campbell KN, Yue Z, Yin XM, Cuervo AM, Czaja MJ, Fiel MI, Hoshida Y, Friedman SL. Autophagy is a gatekeeper of hepatic differentiation and carcinogenesis by controlling the degradation of Yap. Nat Commun 2018; 9:4962. [PMID: 30470740 PMCID: PMC6251897 DOI: 10.1038/s41467-018-07338-z] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 10/19/2018] [Indexed: 02/07/2023] Open
Abstract
Activation of the Hippo pathway effector Yap underlies many liver cancers, however no germline or somatic mutations have been identified. Autophagy maintains essential metabolic functions of the liver, and autophagy-deficient murine models develop benign adenomas and hepatomegaly, which have been attributed to activation of the p62/Sqstm1-Nrf2 axis. Here, we show that Yap is an autophagy substrate and mediator of tissue remodeling and hepatocarcinogenesis independent of the p62/Sqstm1-Nrf2 axis. Hepatocyte-specific deletion of Atg7 promotes liver size, fibrosis, progenitor cell expansion, and hepatocarcinogenesis, which is rescued by concurrent deletion of Yap. Our results shed new light on mechanisms of Yap degradation and the sequence of events that follow disruption of autophagy, which is impaired in chronic liver disease. Increased levels of the Yap oncoprotein stimulate liver growth and promote hepatocarcinogenesis. Here the authors show that hepatocyte-specific loss of Atg7 in mice leads to decreased autophagic degradation of Yap and liver overgrowth, and further establish this association in human liver cancer tissues.
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Affiliation(s)
- Youngmin A Lee
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA. .,Laboratory of RNA Molecular Biology, Rockefeller University, New York, NY, 10065, USA.
| | - Luke A Noon
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.,CIBERDEM, Centro de Investigación Príncipe Felipe, 46012, Valencia, Spain
| | - Kemal M Akat
- Laboratory of RNA Molecular Biology, Rockefeller University, New York, NY, 10065, USA
| | - Maria D Ybanez
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Ting-Fang Lee
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Marie-Luise Berres
- Department of Internal Medicine III, University Hospital RWTH Aachen, 52074, Aachen, Germany.,Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Naoto Fujiwara
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.,Division of Digestive and Liver Diseases, University of Texas Southwestern Medical Center, Dallas, Texas, Tx 75390, USA
| | - Nicolas Goossens
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.,Division of Gastroenterology and Hepatology, Geneva University Hospital, 1205, Geneva, Switzerland
| | - Hsin-I Chou
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Fatemeh P Parvin-Nejad
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Bilon Khambu
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Elisabeth G M Kramer
- Department of Neurology, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Ronald Gordon
- Department for Pathology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Cathie Pfleger
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Doris Germain
- Department of Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Gareth R John
- Department of Neurology, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Kirk N Campbell
- Division of Nephrology, Icahn School of Medicine at Mount Sinai, NY, 10029, New York, USA
| | - Zhenyu Yue
- Department of Neurology, Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Xiao-Ming Yin
- Department of Pathology & Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Ana Maria Cuervo
- Department of Developmental and Molecular Biology, Institute for Aging Studies, Albert Einstein College of Medicine, Bronx, NY, 10461, USA
| | - Mark J Czaja
- Department of Medicine, Emory University School of Medicine, Atlanta, GA, GA 30307, USA
| | - M Isabel Fiel
- Department for Pathology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Yujin Hoshida
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.,Division of Digestive and Liver Diseases, University of Texas Southwestern Medical Center, Dallas, Texas, Tx 75390, USA
| | - Scott L Friedman
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
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Mana-Capelli S, McCollum D. Angiomotins stimulate LATS kinase autophosphorylation and act as scaffolds that promote Hippo signaling. J Biol Chem 2018; 293:18230-18241. [PMID: 30266805 DOI: 10.1074/jbc.ra118.004187] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 09/17/2018] [Indexed: 01/31/2023] Open
Abstract
The Hippo pathway controls cell proliferation, differentiation, and survival by regulating the Yes-associated protein (YAP) transcriptional coactivator in response to various stimuli, including the mechanical environment. The major YAP regulators are the LATS1/2 kinases, which phosphorylate and inhibit YAP. LATS1/2 are activated by phosphorylation on a hydrophobic motif (HM) outside of the kinase domain by MST1/2 and other kinases. Phosphorylation of the HM motif then triggers autophosphorylation of the kinase in the activation loop to fully activate the kinase, a process facilitated by MOB1. The angiomotin family of proteins (AMOT, AMOTL1, and AMOTL2) bind LATS1/2 and promote its kinase activity and YAP phosphorylation through an unknown mechanism. Here we show that angiomotins increase Hippo signaling through multiple mechanisms. We found that, by binding LATS1/2, SAV1, and YAP, angiomotins function as a scaffold that connects LATS1/2 to both its activator SAV1-MST1 and its target YAP. Deletion of all three angiomotins reduced the association of LATS1 with SAV1-MST1 and decreased MST1/2-mediated LATS1/2-HM phosphorylation. Angiomotin deletion also reduced LATS1/2's ability to associate with and phosphorylate YAP. In addition, we found that angiomotins have an unexpected function along with MOB1 to promote autophosphorylation of LATS1/2 on the activation loop motif independent of HM phosphorylation. These results indicate that angiomotins enhance Hippo signaling by stimulating LATS1/2 autophosphorylation and by connecting LATS1/2 with both its activator SAV1-MST1/2 and its substrate YAP.
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Affiliation(s)
- Sebastian Mana-Capelli
- From the Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605
| | - Dannel McCollum
- From the Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, Massachusetts 01605.
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