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Ghosh M, Khanam R, Sengupta A, Chakraborty S. Oxidative-stress induced Bmp2-Smad1/5/8 signaling dependent differentiation of early cardiomyocytes from embryonic and adult epicardial cells. Differentiation 2024; 136:100756. [PMID: 38471281 DOI: 10.1016/j.diff.2024.100756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 02/15/2024] [Accepted: 02/17/2024] [Indexed: 03/14/2024]
Abstract
Heart failure has become a major life-threatening cause affecting millions globally, characterized by the permanent loss of adult functional cardiomyocytes leading to fibrosis which ultimately deprives the heart of its functional efficacy. Here we investigated the reparative property of embryonic and adult epicardial cells towards cardiomyocyte differentiation under oxidative stress-induced conditions along with the identification of a possible molecular signaling pathway. Isolated epicardial cells from embryonic chick hearts subjected to oxidative stress and hypoxia induction. Initial assessment of successful injury induction reveals hypertrophy of isolated epicardial cells. Detailed marker gene expression analyses and inhibitor studies reveal Bone morphogenic protein (Bmp)2-Smad1/5/8 signaling dependent cardiomyocyte lineage specification via epithelial to mesenchymal transition (EMT) post-injury. EMT is further confirmed by increased proliferation, migration, and differentiation towards cardiomyocyte lineage. We have also established an in-vivo model in adult male rats using Isoproterenol. Successful oxidative stress-mediated injury induction in adult heart was marked by increased activated fibroblasts followed by apoptosis of adult cardiomyocytes. The detailed characterization of adult epicardial cells reveals similar findings to our avian in-vitro data. Both in-vitro and in-vivo results show a significant increase in the expression of cardiomyocyte specific markers indicative of lineage specificity and activation of epicardial cells post oxidative stress mediated injury. Our findings suggest an EMT-induced reactivation of epicardial cells and early cardiomyocyte lineage specification following oxidative stress in a Bmp2- Smad1/5/8 dependent manner. Overall, this regulatory mechanism of cardiomyocyte differentiation induced by oxidative stress may contribute to the field of cardiac repair and regenerative therapeutics.
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Affiliation(s)
- Madhurima Ghosh
- Department of Life Sciences, Presidency University, Kolkata, 700073, India
| | - Riffat Khanam
- Department of Life Sciences, Presidency University, Kolkata, 700073, India
| | - Arunima Sengupta
- Department of Life Science and Biotechnology, Jadavpur University, Kolkata, 700032, India
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Orgil BO, Xu F, Munkhsaikhan U, Alberson NR, Bajpai AK, Johnson JN, Sun Y, Towbin JA, Lu L, Purevjav E. Echocardiography phenotyping in murine genetic reference population of BXD strains reveals significant QTLs associated with cardiac function and morphology. Physiol Genomics 2023; 55:51-66. [PMID: 36534598 PMCID: PMC9902221 DOI: 10.1152/physiolgenomics.00120.2022] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 12/14/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
The genetic reference population of recombinant inbred BXD mice has been derived from crosses between C57BL/6J and DBA/2J strains. The DBA/2J parent exhibits cardiomyopathy phenotypes, whereas C57BL/6J has normal heart. BXD mice are sequenced for studying genetic interactions in cardiomyopathies. The study aimed to assess cardiomyopathy traits in BXDs and investigate the quantitative genetic architecture of those traits. Echocardiography, blood pressure, and cardiomyocyte size parameters obtained from 44 strains of BXD family (n > 5/sex) at 4-5 mo of age were associated with heart transcriptomes and expression quantitative trait loci (eQTL) mapping was performed. More than twofold variance in ejection fraction (EF%), fractional shortening (FS%), left ventricular volumes (LVVols), internal dimensions (LVIDs), mass (LVM), and posterior wall (LVPW) thickness was found among BXDs. In male BXDs, eQTL mapping identified Ndrg4 on chromosome 8 QTL to be positively correlated with LVVol and LVID and negatively associated with cardiomyocyte diameter. In female BXDs, significant QTLs were found on chromosomes 7 and 3 to be associated with LVPW and EF% and FS%, respectively, and Josd2, Dap3, and Tpm3 were predicted as strong candidate genes. Our study found variable cardiovascular traits among BXD strains and identified multiple associated QTLs, suggesting an influence of genetic background on expression of echocardiographic and cardiomyocyte diameter traits. Increased LVVol and reduced EF% and FS% represented dilated cardiomyopathy, whereas increased LV mass and wall thickness indicated hypertrophic cardiomyopathy traits. The BXD family is ideal for identifying candidate genes, causal and modifier, that influence cardiovascular phenotypes.NEW & NOTEWORTHY This study aimed to establish a cardiac phenotype-genotype correlation in murine genetic reference population of BXD RI strains by phenotyping the echocardiography, blood pressure, and cardiomyocyte diameter traits and associating each collected phenotype with genetic background. Our study identified several QTLs and candidate genes that have significant association with cardiac hypertrophy, ventricular dilation, and function including systolic hyperfunction and dysfunction.
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Affiliation(s)
- Buyan-Ochir Orgil
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee
- Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, Tennessee
| | - Fuyi Xu
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, Memphis, Tennessee
- School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Undral Munkhsaikhan
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Neely R Alberson
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee
- Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, Tennessee
| | - Akhilesh Kumar Bajpai
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Jason N Johnson
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee
- Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, Tennessee
| | - Yao Sun
- Division of Cardiovascular Diseases, Department of Medicine, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Jeffrey A Towbin
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee
- Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, Tennessee
- Pediatric Cardiology, St. Jude Children's Research Hospital, Memphis, Tennessee
| | - Lu Lu
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Enkhsaikhan Purevjav
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee
- Children's Foundation Research Institute, Le Bonheur Children's Hospital, Memphis, Tennessee
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Liu JX, Huang T, Xie D, Yu Q. Bves maintains vascular smooth muscle cell contractile phenotype and protects against transplant vasculopathy via Dusp1-dependent p38MAPK and ERK1/2 signaling. Atherosclerosis 2022; 357:20-32. [PMID: 36037759 DOI: 10.1016/j.atherosclerosis.2022.08.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 07/26/2022] [Accepted: 08/10/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND AIMS Vascular smooth muscle cell (VSMC) plasticity is tightly associated with the pathological process of vasculopathy. Blood vessel epicardial substance (Bves) has emerged as an important regulator of intracardiac vasculogenesis and organ homeostasis. However, the involvement and role of Bves in VSMC plasticity and neointimal lesion development remain unclear. METHODS We used an in vivo rat model of graft arteriosclerosis and in vitro PDGF-treated VSMCs and identified the novel VSMC contractile phenotype-related gene Bves using a transcriptomic analysis and literature search. In vitro knockdown and overexpression approaches were used to investigate the mechanisms underlying VSMC phenotypic plasticity. In vivo, VSMC-specific Bves overexpression in rat aortic grafts was generated to assess the physiological function of Bves in neointimal lesion development. RESULTS Here, we found that Bves expression was negatively regulated in aortic allografts in vivo and PDGF-treated VSMCs in vitro. The genetic knockdown of Bves dramatically inhibited, whereas Bves overexpression markedly promoted, the VSMC contractile phenotype. Furthermore, RNA sequencing unraveled a positive correlation between Bves and dual-specificity protein phosphatase 1 (Dusp1) expression in VSMCs. We found that Bves knockdown restrained Dusp1 expression, but enhanced p38MAPK and ERK1/2 activation, resulting in the loss of the VSMC contractile phenotype. In vivo, an analysis of a rat graft model confirmed that VSMC-specific Bves and Dusp1 overexpression in aortic allografts significantly attenuated neointimal lesion formation. CONCLUSIONS Bves maintains the VSMC contractile phenotype through Dusp1-dependent p38MAPK and ERK1/2 signaling, and protects against neointimal formation, underscoring the important role of Bves in preventing transplant vasculopathy.
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Affiliation(s)
- Jin-Xin Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tong Huang
- The Eight Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Dawei Xie
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qihong Yu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Clinical Medical Research Center of Hepatic Surgery at Hubei Province, Wuhan, China.
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Shetty MS, Ris L, Schindler RFR, Mizuno K, Fedele L, Giese KP, Brand T, Abel T. Mice Lacking the cAMP Effector Protein POPDC1 Show Enhanced Hippocampal Synaptic Plasticity. Cereb Cortex 2022; 32:3457-3471. [PMID: 34937090 PMCID: PMC9376866 DOI: 10.1093/cercor/bhab426] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 11/13/2022] Open
Abstract
Extensive research has uncovered diverse forms of synaptic plasticity and an array of molecular signaling mechanisms that act as positive or negative regulators. Specifically, cyclic 3',5'-cyclic adenosine monophosphate (cAMP)-dependent signaling pathways are crucially implicated in long-lasting synaptic plasticity. In this study, we examine the role of Popeye domain-containing protein 1 (POPDC1) (or blood vessel epicardial substance (BVES)), a cAMP effector protein, in modulating hippocampal synaptic plasticity. Unlike other cAMP effectors, such as protein kinase A (PKA) and exchange factor directly activated by cAMP, POPDC1 is membrane-bound and the sequence of the cAMP-binding cassette differs from canonical cAMP-binding domains, suggesting that POPDC1 may have an unique role in cAMP-mediated signaling. Our results show that Popdc1 is widely expressed in various brain regions including the hippocampus. Acute hippocampal slices from Popdc1 knockout (KO) mice exhibit PKA-dependent enhancement in CA1 long-term potentiation (LTP) in response to weaker stimulation paradigms, which in slices from wild-type mice induce only transient LTP. Loss of POPDC1, while not affecting basal transmission or input-specificity of LTP, results in altered response during high-frequency stimulation. Popdc1 KO mice also show enhanced forskolin-induced potentiation. Overall, these findings reveal POPDC1 as a novel negative regulator of hippocampal synaptic plasticity and, together with recent evidence for its interaction with phosphodiesterases (PDEs), suggest that POPDC1 is involved in modulating activity-dependent local cAMP-PKA-PDE signaling.
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Affiliation(s)
- Mahesh Shivarama Shetty
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Laurence Ris
- Department of Neuroscience, University of Mons, Research Institute for Health Sciences and Technology, 7000 Mons, Belgium
| | | | - Keiko Mizuno
- Department of Neuroscience, King’s College, London SE5 9NU, UK
| | - Laura Fedele
- National Heart and Lung Institute, Imperial College London, London W12 ONN, UK
| | | | - Thomas Brand
- National Heart and Lung Institute, Imperial College London, London W12 ONN, UK
| | - Ted Abel
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
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Tibbo AJ, Mika D, Dobi S, Ling J, McFall A, Tejeda GS, Blair C, MacLeod R, MacQuaide N, Gök C, Fuller W, Smith BO, Smith GL, Vandecasteele G, Brand T, Baillie GS. Phosphodiesterase type 4 anchoring regulates cAMP signaling to Popeye domain-containing proteins. J Mol Cell Cardiol 2022; 165:86-102. [PMID: 34999055 PMCID: PMC8986152 DOI: 10.1016/j.yjmcc.2022.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/16/2021] [Accepted: 01/03/2022] [Indexed: 12/04/2022]
Abstract
Cyclic AMP is a ubiquitous second messenger used to transduce intracellular signals from a variety of Gs-coupled receptors. Compartmentalisation of protein intermediates within the cAMP signaling pathway underpins receptor-specific responses. The cAMP effector proteins protein-kinase A and EPAC are found in complexes that also contain phosphodiesterases whose presence ensures a coordinated cellular response to receptor activation events. Popeye domain containing (POPDC) proteins are the most recent class of cAMP effectors to be identified and have crucial roles in cardiac pacemaking and conduction. We report the first observation that POPDC proteins exist in complexes with members of the PDE4 family in cardiac myocytes. We show that POPDC1 preferentially binds the PDE4A sub-family via a specificity motif in the PDE4 UCR1 region and that PDE4s bind to the Popeye domain of POPDC1 in a region known to be susceptible to a mutation that causes human disease. Using a cell-permeable disruptor peptide that displaces the POPDC1-PDE4 complex we show that PDE4 activity localized to POPDC1 modulates cycle length of spontaneous Ca2+ transients firing in intact mouse sinoatrial nodes. POPDC1 forms a complex with type 4 phosphodiesterases (PDE4s) in cardiac myocytes. POPDC1 binds PDE4 enzymes in the Upstream Conserved Region 1 (UCR1) domain. The PDE4 binding motif within the Popeye domain lies in a region that harbours a mutation, which underpins human disease. Disruption of the POPDC1-PDE4 complex modulates the cycle length of spontaneous Ca2+ transients in the sinoatrial node. Disruption of the POPDC1-PDE4 complex causes a significant prolongation of the action potential repolarization phase.
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Affiliation(s)
- Amy J Tibbo
- College of Veterinary, Medical and Life Sciences, University of Glasgow, Glasgow G128QQ, UK
| | - Delphine Mika
- Université Paris-Saclay, Inserm, Signaling and Cardiovascular Pathophysiology, UMR-S 1180, 92296 Châtenay-Malabry, France
| | - Sara Dobi
- College of Veterinary, Medical and Life Sciences, University of Glasgow, Glasgow G128QQ, UK
| | - Jiayue Ling
- College of Veterinary, Medical and Life Sciences, University of Glasgow, Glasgow G128QQ, UK
| | - Aisling McFall
- College of Veterinary, Medical and Life Sciences, University of Glasgow, Glasgow G128QQ, UK
| | - Gonzalo S Tejeda
- College of Veterinary, Medical and Life Sciences, University of Glasgow, Glasgow G128QQ, UK
| | - Connor Blair
- College of Veterinary, Medical and Life Sciences, University of Glasgow, Glasgow G128QQ, UK
| | - Ruth MacLeod
- College of Veterinary, Medical and Life Sciences, University of Glasgow, Glasgow G128QQ, UK
| | - Niall MacQuaide
- School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, UK
| | - Caglar Gök
- College of Veterinary, Medical and Life Sciences, University of Glasgow, Glasgow G128QQ, UK
| | - William Fuller
- College of Veterinary, Medical and Life Sciences, University of Glasgow, Glasgow G128QQ, UK
| | - Brian O Smith
- College of Veterinary, Medical and Life Sciences, University of Glasgow, Glasgow G128QQ, UK
| | - Godfrey L Smith
- College of Veterinary, Medical and Life Sciences, University of Glasgow, Glasgow G128QQ, UK
| | - Grégoire Vandecasteele
- Université Paris-Saclay, Inserm, Signaling and Cardiovascular Pathophysiology, UMR-S 1180, 92296 Châtenay-Malabry, France
| | - Thomas Brand
- National Heart and Lung Institute, Imperial College, W12 0NN, London
| | - George S Baillie
- College of Veterinary, Medical and Life Sciences, University of Glasgow, Glasgow G128QQ, UK.
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6
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Tang T, Wang H, Han Y, Huang H, Niu W, Fei M, Zhu Y. The Role of N-myc Downstream-Regulated Gene Family in Glioma Based on Bioinformatics Analysis. DNA Cell Biol 2021; 40:949-968. [PMID: 34115542 DOI: 10.1089/dna.2020.6216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Glioma is the most common type of primary tumor in the central nervous system, and the molecular mechanisms remain elusive. N-myc downstream-regulated gene (NDRG) family is reported to take part in the pathogenesis of various diseases, including some preliminary exploration in glioma. However, there has been no bioinformatics analysis of NDRG family in glioma yet. Herein, we focused on the expression changes of NDRGs with their value in predicting patients' prognoses, upstream regulatory mechanisms (DNA mutation, DNA methylation, transcription factors, and microRNA regulation) and gene enrichment analysis based on co-expressed genes with data from public databases. Furthermore, the expression pattern of NDRGs was verified by the paired glioma and peritumoral samples in our institute. It was suggested that NDRGs were differentially expressed genes in glioma. In particular, the lower expression of NDRG2 or NDRG4 could serve as a predictor of higher grade tumor and poorer prognosis. Also, NDRGs might play a crucial role in signal transduction, energy metabolism, and cross-talk among cells in glioma, under the control of a complex regulatory network. This study enables us to better understand the role of NDRGs in glioma and with further research, it may contribute to the development of glioma treatment.
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Affiliation(s)
- Ting Tang
- Department of Neurosurgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R. China
| | - Handong Wang
- Department of Neurosurgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R. China
| | - Yanling Han
- Department of Neurosurgery, Jinling Hospital, Nanjing, P.R. China
| | - Hanyu Huang
- Department of Neurosurgery, Affiliated Jinling Hospital, Nanjing Medical University, Nanjing, P.R. China
| | - Wenhao Niu
- Department of Neurosurgery, Jinling Hospital, Nanjing, P.R. China
| | - Maoxing Fei
- Department of Neurosurgery, Jinling Hospital, Nanjing, P.R. China
| | - Yihao Zhu
- Department of Neurosurgery, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R. China
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7
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Vaes N, Schonkeren SL, Rademakers G, Holland AM, Koch A, Gijbels MJ, Keulers TG, de Wit M, Moonen L, Van der Meer JRM, van den Boezem E, Wolfs TGAM, Threadgill DW, Demmers J, Fijneman RJA, Jimenez CR, Vanden Berghe P, Smits KM, Rouschop KMA, Boesmans W, Hofstra RMW, Melotte V. Loss of enteric neuronal Ndrg4 promotes colorectal cancer via increased release of Nid1 and Fbln2. EMBO Rep 2021; 22:e51913. [PMID: 33890711 PMCID: PMC8183412 DOI: 10.15252/embr.202051913] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 03/09/2021] [Accepted: 03/11/2021] [Indexed: 12/28/2022] Open
Abstract
The N-Myc Downstream-Regulated Gene 4 (NDRG4), a prominent biomarker for colorectal cancer (CRC), is specifically expressed by enteric neurons. Considering that nerves are important members of the tumor microenvironment, we here establish different Ndrg4 knockout (Ndrg4-/- ) CRC models and an indirect co-culture of primary enteric nervous system (ENS) cells and intestinal organoids to identify whether the ENS, via NDRG4, affects intestinal tumorigenesis. Linking immunostainings and gastrointestinal motility (GI) assays, we show that the absence of Ndrg4 does not trigger any functional or morphological GI abnormalities. However, combining in vivo, in vitro, and quantitative proteomics data, we uncover that Ndrg4 knockdown is associated with enlarged intestinal adenoma development and that organoid growth is boosted by the Ndrg4-/- ENS cell secretome, which is enriched for Nidogen-1 (Nid1) and Fibulin-2 (Fbln2). Moreover, NID1 and FBLN2 are expressed in enteric neurons, enhance migration capacities of CRC cells, and are enriched in human CRC secretomes. Hence, we provide evidence that the ENS, via loss of Ndrg4, is involved in colorectal pathogenesis and that ENS-derived Nidogen-1 and Fibulin-2 enhance colorectal carcinogenesis.
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Affiliation(s)
- Nathalie Vaes
- Department of PathologyGROW–School for Oncology and Developmental BiologyMaastricht University Medical CenterMaastrichtThe Netherlands
| | - Simone L Schonkeren
- Department of PathologyGROW–School for Oncology and Developmental BiologyMaastricht University Medical CenterMaastrichtThe Netherlands
| | - Glenn Rademakers
- Department of PathologyGROW–School for Oncology and Developmental BiologyMaastricht University Medical CenterMaastrichtThe Netherlands
| | - Amy M Holland
- Department of PathologyGROW–School for Oncology and Developmental BiologyMaastricht University Medical CenterMaastrichtThe Netherlands
| | - Alexander Koch
- Department of PathologyGROW–School for Oncology and Developmental BiologyMaastricht University Medical CenterMaastrichtThe Netherlands
| | - Marion J Gijbels
- Department of PathologyGROW–School for Oncology and Developmental BiologyMaastricht University Medical CenterMaastrichtThe Netherlands
- Department of Molecular GeneticsCardiovascular Research Institute Maastricht (CARIM)MaastrichtThe Netherlands
- Department of Medical BiochemistryAcademic Medical CenterAmsterdamThe Netherlands
| | - Tom G Keulers
- Department of RadiotherapyGROW‐School for Oncology and Developmental Biology and Comprehensive Cancer Center Maastricht MUMC+Maastricht UniversityMaastrichtThe Netherlands
| | - Meike de Wit
- Department of Medical Oncology and Oncoproteomics LaboratoryCancer Center AmsterdamVrije Universiteit AmsterdamAmsterdam UMCAmsterdamThe Netherlands
- Department of PathologyNetherlands Cancer InstituteAmsterdamThe Netherlands
| | - Laura Moonen
- Department of PathologyGROW–School for Oncology and Developmental BiologyMaastricht University Medical CenterMaastrichtThe Netherlands
| | - Jaleesa R M Van der Meer
- Department of PathologyGROW–School for Oncology and Developmental BiologyMaastricht University Medical CenterMaastrichtThe Netherlands
| | - Edith van den Boezem
- Department of PathologyGROW–School for Oncology and Developmental BiologyMaastricht University Medical CenterMaastrichtThe Netherlands
| | - Tim G A M Wolfs
- Department of PediatricsGROW‐School for Oncology and Developmental BiologyMaastricht UniversityMaastrichtThe Netherlands
| | - David W Threadgill
- Department of Molecular and Cellular MedicineTexas A&M University Health Science CenterCollege StationTXUSA
- Department of Biochemistry and BiophysicsTexas A&M UniversityCollege StationTXUSA
| | - Jeroen Demmers
- Proteomics CenterErasmus University Medical CenterRotterdamThe Netherlands
| | | | - Connie R Jimenez
- Department of Medical Oncology and Oncoproteomics LaboratoryCancer Center AmsterdamVrije Universiteit AmsterdamAmsterdam UMCAmsterdamThe Netherlands
| | - Pieter Vanden Berghe
- Laboratory for Enteric Neuroscience (LENS) and Translational Research Center for Gastrointestinal Disorders (TARGID)Department of Chronic Diseases, Metabolism and AgeingKU LeuvenLeuvenBelgium
| | - Kim M Smits
- Department of PathologyGROW–School for Oncology and Developmental BiologyMaastricht University Medical CenterMaastrichtThe Netherlands
| | - Kasper M A Rouschop
- Department of RadiotherapyGROW‐School for Oncology and Developmental Biology and Comprehensive Cancer Center Maastricht MUMC+Maastricht UniversityMaastrichtThe Netherlands
| | - Werend Boesmans
- Department of PathologyGROW–School for Oncology and Developmental BiologyMaastricht University Medical CenterMaastrichtThe Netherlands
- Biomedical Research Institute (BIOMED)Hasselt UniversityHasseltBelgium
| | - Robert M W Hofstra
- Department of Clinical GeneticsErasmus University Medical CenterRotterdamThe Netherlands
| | - Veerle Melotte
- Department of PathologyGROW–School for Oncology and Developmental BiologyMaastricht University Medical CenterMaastrichtThe Netherlands
- Department of Clinical GeneticsErasmus University Medical CenterRotterdamThe Netherlands
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The Transition from Gastric Intestinal Metaplasia to Gastric Cancer Involves POPDC1 and POPDC3 Downregulation. Int J Mol Sci 2021; 22:ijms22105359. [PMID: 34069715 PMCID: PMC8160799 DOI: 10.3390/ijms22105359] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/09/2021] [Accepted: 05/12/2021] [Indexed: 12/24/2022] Open
Abstract
Intestinal metaplasia (IM) is an intermediate step in the progression from premalignant to malignant stages of gastric cancer (GC). The Popeye domain containing (POPDC) gene family encodes three transmembrane proteins, POPDC1, POPDC2, and POPDC3, initially described in muscles and later in epithelial and other cells, where they function in cell–cell interaction, and cell migration. POPDC1 and POPDC3 downregulation was described in several tumors, including colon and gastric cancers. We questioned whether IM-to-GC transition involves POPDC gene dysregulation. Gastric endoscopic biopsies of normal, IM, and GC patients were examined for expression levels of POPDC1-3 and several suggested IM biomarkers, using immunohistochemistry and qPCR. Immunostaining indicated lower POPDC1 and POPDC3 labeling in IM compared with normal tissues. Significantly lower POPDC1 and POPDC3 mRNA levels were measured in IM and GC biopsies and in GC-derived cell lines. The reduction in focal IM was smaller than in extensive IM that resembled GC tissues. POPDC1 and POPDC3 transcript levels were highly correlated with each other and inversely correlated with LGR5, OLFM4, CDX2, and several mucin transcripts. The association of POPDC1 and POPDC3 downregulation with IM-to-GC transition implicates a role in tumor suppression and highlights them as potential biomarkers for GC progression and prospective treatment targets.
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9
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Albacete-Albacete L, Sánchez-Álvarez M, Del Pozo MA. Extracellular Vesicles: An Emerging Mechanism Governing the Secretion and Biological Roles of Tenascin-C. Front Immunol 2021; 12:671485. [PMID: 33981316 PMCID: PMC8107694 DOI: 10.3389/fimmu.2021.671485] [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: 02/23/2021] [Accepted: 04/08/2021] [Indexed: 12/12/2022] Open
Abstract
ECM composition and architecture are tightly regulated for tissue homeostasis. Different disorders have been associated to alterations in the levels of proteins such as collagens, fibronectin (FN) or tenascin-C (TnC). TnC emerges as a key regulator of multiple inflammatory processes, both during physiological tissue repair as well as pathological conditions ranging from tumor progression to cardiovascular disease. Importantly, our current understanding as to how TnC and other non-collagen ECM components are secreted has remained elusive. Extracellular vesicles (EVs) are small membrane-bound particles released to the extracellular space by most cell types, playing a key role in cell-cell communication. A broad range of cellular components can be transported by EVs (e.g. nucleic acids, lipids, signalling molecules and proteins). These cargoes can be transferred to target cells, potentially modulating their function. Recently, several extracellular matrix (ECM) proteins have been characterized as bona fide EV cargoes, exosomal secretion being particularly critical for TnC. EV-dependent ECM secretion might underpin diseases where ECM integrity is altered, establishing novel concepts in the field such as ECM nucleation over long distances, and highlighting novel opportunities for diagnostics and therapeutic intervention. Here, we review recent findings and standing questions on the molecular mechanisms governing EV–dependent ECM secretion and its potential relevance for disease, with a focus on TnC.
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Affiliation(s)
- Lucas Albacete-Albacete
- Mechanoadaptation and Caveolae Biology Lab, Area of Cell and Developmental Biology, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Miguel Sánchez-Álvarez
- Mechanoadaptation and Caveolae Biology Lab, Area of Cell and Developmental Biology, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Miguel Angel Del Pozo
- Mechanoadaptation and Caveolae Biology Lab, Area of Cell and Developmental Biology, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
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10
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Mantri M, Scuderi GJ, Abedini-Nassab R, Wang MFZ, McKellar D, Shi H, Grodner B, Butcher JT, De Vlaminck I. Spatiotemporal single-cell RNA sequencing of developing chicken hearts identifies interplay between cellular differentiation and morphogenesis. Nat Commun 2021; 12:1771. [PMID: 33741943 PMCID: PMC7979764 DOI: 10.1038/s41467-021-21892-z] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 02/17/2021] [Indexed: 01/01/2023] Open
Abstract
Single-cell RNA sequencing is a powerful tool to study developmental biology but does not preserve spatial information about tissue morphology and cellular interactions. Here, we combine single-cell and spatial transcriptomics with algorithms for data integration to study the development of the chicken heart from the early to late four-chambered heart stage. We create a census of the diverse cellular lineages in developing hearts, their spatial organization, and their interactions during development. Spatial mapping of differentiation transitions in cardiac lineages defines transcriptional differences between epithelial and mesenchymal cells within the epicardial lineage. Using spatially resolved expression analysis, we identify anatomically restricted expression programs, including expression of genes implicated in congenital heart disease. Last, we discover a persistent enrichment of the small, secreted peptide, thymosin beta-4, throughout coronary vascular development. Overall, our study identifies an intricate interplay between cellular differentiation and morphogenesis.
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Affiliation(s)
- Madhav Mantri
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
- Computational Biology Ph.D. Program, Cornell University, Ithaca, NY, USA
| | - Gaetano J Scuderi
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Roozbeh Abedini-Nassab
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
- Department of Engineering, University of Neyshabur, Neyshabur, Iran
| | - Michael F Z Wang
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
- Computational Biology Ph.D. Program, Cornell University, Ithaca, NY, USA
| | - David McKellar
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Hao Shi
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Benjamin Grodner
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Jonathan T Butcher
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA.
| | - Iwijn De Vlaminck
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA.
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11
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Tucker SJ, Zorn AJ. The role of Popeye domain-containing protein 1 (POPDC1) in the progression of the malignant phenotype. Br J Pharmacol 2021; 179:2829-2843. [PMID: 33533478 DOI: 10.1111/bph.15403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 01/14/2021] [Accepted: 01/16/2021] [Indexed: 12/14/2022] Open
Abstract
The Popeye domain-containing protein 1 (POPDC1), a tight junction-associated transmembrane protein with a unique binding site for cAMP, has been shown to act as a tumour suppressor in cancer cells. Through interaction with many downstream effectors and signalling pathways, POPDC1 promotes cell adhesion and inhibits uncontrolled cell proliferation, epithelial-to-mesenchymal transition and metastasis. However, POPDC1 expression is down-regulated in many types of cancer, thereby reducing its tumour-suppressive actions. This review discusses the role of POPDC1 in the progression of the malignant phenotype and highlights the broad range of benefits POPDC1 stabilisation may achieve therapeutically. Cancer stem cells (CSCs) are a key hallmark of malignancies and commonly promote treatment resistance. This article provides a comprehensive overview of CSC signalling mechanisms, many of which have been shown to be regulated by POPDC1 in other cell types, thus suggesting an additional therapeutic benefit for POPDC1-stabilising anti-cancer drugs.
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Affiliation(s)
- Steven J Tucker
- School of Medicine, Medical Science and Nutrition, University of Aberdeen, Aberdeen, UK
| | - Alina J Zorn
- School of Medicine, Medical Science and Nutrition, University of Aberdeen, Aberdeen, UK
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12
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Peng J, Wang Q, Meng Z, Wang J, Zhou Y, Zhou S, Song W, Chen S, Chen AF, Sun K. A loss-of-function mutation p.T256M in NDRG4 is implicated in the pathogenesis of pulmonary atresia with ventricular septal defect (PA/VSD) and tetralogy of Fallot (TOF). FEBS Open Bio 2021; 11:375-385. [PMID: 33211401 PMCID: PMC7876499 DOI: 10.1002/2211-5463.13044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/10/2020] [Accepted: 11/17/2020] [Indexed: 11/10/2022] Open
Abstract
Pulmonary atresia with ventricular septal defect (PA/VSD) is a rare congenital heart disease (CHD) characterized by a lack of luminal continuity and blood flow from either the right ventricle or the pulmonary artery, together with VSDs. The prevalence of PA/VSD is about 0.2% of live births and approximately 2% of CHDs. PA/VSD is similar to tetralogy of Fallot (TOF) in terms of structural and pathological characteristics. The pathogenesis of these two CHDs remains incompletely understood. It was previously reported that N‐myc downstream‐regulated gene (NDRG)4 is required for myocyte proliferation during early cardiac development. In the present study, we enrolled 80 unrelated patients with PA/VSD or TOF and identified a probably damaging variant p.T256M of NDRG4. The p.T256M variant impaired the proliferation ability of human cardiac myocytes (hCM). Furthermore, the p.T256M variant resulted in G1 and G2 arrest of hCM, followed by an increase in p27 and caspase‐9 expression. Our results provide evidence that the p.T256M variant in NDRG4 is a pathogenic variant associated with impaired hCM proliferation and cell‐cycle arrest and likely contributes towards the pathogenesis of PA/VSD and TOF.
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Affiliation(s)
- Jiayu Peng
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qingjie Wang
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhuo Meng
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jian Wang
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yue Zhou
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shuang Zhou
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wenting Song
- Department of Pediatric Cardiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Zhejiang, China
| | - Sun Chen
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Alex F Chen
- Institute of Cardiovascular Development and Regeneration, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Department of Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Kun Sun
- Department of Pediatric Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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13
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Holt I, Fuller HR, Schindler RFR, Shirran SL, Brand T, Morris GE. An interaction of heart disease-associated proteins POPDC1/2 with XIRP1 in transverse tubules and intercalated discs. BMC Mol Cell Biol 2020; 21:88. [PMID: 33261556 PMCID: PMC7709239 DOI: 10.1186/s12860-020-00329-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 11/18/2020] [Indexed: 11/25/2022] Open
Abstract
Background Popeye domain-containing proteins 1 and 2 (POPDC1 and POPDC2) are transmembrane proteins involved in cyclic AMP-mediated signalling processes and are required for normal cardiac pacemaking and conduction. In order to identify novel protein interaction partners, POPDC1 and 2 proteins were attached to beads and compared by proteomic analysis with control beads in the pull-down of proteins from cultured human skeletal myotubes. Results There were highly-significant interactions of both POPDC1 and POPDC2 with XIRP1 (Xin actin binding repeat-containing protein 1), actin and, to a lesser degree, annexin A5. In adult human skeletal muscle, both XIRP1 and POPDC1/2 were present at the sarcolemma and in T-tubules. The interaction of POPDC1 with XIRP1 was confirmed in adult rat heart extracts. Using new monoclonal antibodies specific for POPDC1 and POPDC2, both proteins, together with XIRP1, were found mainly at intercalated discs but also at T-tubules in adult rat and human heart. Conclusions Mutations in human POPDC1, POPDC2 and in human XIRP1, all cause pathological cardiac arrhythmias, suggesting a possible role for POPDC1/2 and XIRP1 interaction in normal cardiac conduction. Supplementary Information The online version contains supplementary material available at 10.1186/s12860-020-00329-3.
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Affiliation(s)
- Ian Holt
- Wolfson Centre for Inherited Neuromuscular Disease, RJAH Orthopaedic Hospital, Oswestry, SY10 7AG, UK. .,School of Pharmacy and Bioengineering, Keele University, Keele, ST5 5BG, UK.
| | - Heidi R Fuller
- Wolfson Centre for Inherited Neuromuscular Disease, RJAH Orthopaedic Hospital, Oswestry, SY10 7AG, UK.,School of Pharmacy and Bioengineering, Keele University, Keele, ST5 5BG, UK
| | - Roland F R Schindler
- Imperial Centre of Translational and Experimental Medicine, National Heart and Lung Institute, Imperial College, 4th Floor, Du Cane Road, London, W12 0NN, UK
| | - Sally L Shirran
- BSRC Mass Spectrometry and Proteomics Facility, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | - Thomas Brand
- Imperial Centre of Translational and Experimental Medicine, National Heart and Lung Institute, Imperial College, 4th Floor, Du Cane Road, London, W12 0NN, UK
| | - Glenn E Morris
- Wolfson Centre for Inherited Neuromuscular Disease, RJAH Orthopaedic Hospital, Oswestry, SY10 7AG, UK.,School of Pharmacy and Bioengineering, Keele University, Keele, ST5 5BG, UK
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14
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POPDC proteins and cardiac function. Biochem Soc Trans 2020; 47:1393-1404. [PMID: 31551355 DOI: 10.1042/bst20190249] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/21/2019] [Accepted: 08/23/2019] [Indexed: 01/01/2023]
Abstract
The Popeye domain-containing gene family encodes a novel class of cAMP effector proteins in striated muscle tissue. In this short review, we first introduce the protein family and discuss their structure and function with an emphasis on their role in cyclic AMP signalling. Another focus of this review is the recently discovered role of POPDC genes as striated muscle disease genes, which have been associated with cardiac arrhythmia and muscular dystrophy. The pathological phenotypes observed in patients will be compared with phenotypes present in null and knockin mutations in zebrafish and mouse. A number of protein-protein interaction partners have been discovered and the potential role of POPDC proteins to control the subcellular localization and function of these interacting proteins will be discussed. Finally, we outline several areas, where research is urgently needed.
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15
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The Role of the Popeye Domain Containing Gene Family in Organ Homeostasis. Cells 2019; 8:cells8121594. [PMID: 31817925 PMCID: PMC6952887 DOI: 10.3390/cells8121594] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/05/2019] [Accepted: 12/05/2019] [Indexed: 01/01/2023] Open
Abstract
The Popeye domain containing (POPDC) gene family consists of POPDC1 (also known as BVES), POPDC2 and POPDC3 and encodes a novel class of cyclic adenosine monophosphate (cAMP) effector proteins. Despite first reports of their isolation and initial characterization at the protein level dating back 20 years, only recently major advances in defining their biological functions and disease association have been made. Loss-of-function experiments in mice and zebrafish established an important role in skeletal muscle regeneration, heart rhythm control and stress signaling. Patients suffering from muscular dystrophy and atrioventricular block were found to carry missense and nonsense mutations in either of the three POPDC genes, which suggests an important function in the control of striated muscle homeostasis. However, POPDC genes are also expressed in a number of epithelial cells and function as tumor suppressor genes involved in the control of epithelial structure, tight junction formation and signaling. Suppression of POPDC genes enhances tumor cell proliferation, migration, invasion and metastasis in a variety of human cancers, thus promoting a malignant phenotype. Moreover, downregulation of POPDC1 and POPDC3 expression in different cancer types has been associated with poor prognosis. However, high POPDC3 expression has also been correlated to poor clinical prognosis in head and neck squamous cell carcinoma, suggesting that POPDC3 potentially plays different roles in the progression of different types of cancer. Interestingly, a gain of POPDC1 function in tumor cells inhibits cell proliferation, migration and invasion thereby reducing malignancy. Furthermore, POPDC proteins have been implicated in the control of cell cycle genes and epidermal growth factor and Wnt signaling. Work in tumor cell lines suggest that cyclic nucleotide binding may also be important in epithelial cells. Thus, POPDC proteins have a prominent role in tissue homeostasis and cellular signaling in both epithelia and striated muscle.
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16
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Jandrey EHF, Moura RP, Andrade LNS, Machado CL, Campesato LF, Leite KRM, Inoue LT, Asprino PF, da Silva APM, de Barros ACSD, Carvalho A, de Lima VC, Carraro DM, Brentani HP, da Cunha IW, Soares FA, Parmigiani RB, Chammas R, Camargo AA, Costa ÉT. NDRG4 promoter hypermethylation is a mechanistic biomarker associated with metastatic progression in breast cancer patients. NPJ Breast Cancer 2019; 5:11. [PMID: 30963110 PMCID: PMC6450950 DOI: 10.1038/s41523-019-0106-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 03/11/2019] [Indexed: 01/27/2023] Open
Abstract
The risk of developing metastatic disease in breast cancer patients is traditionally predictable based on the number of positive axillary lymph nodes, complemented with additional clinicopathological factors. However, since lymph node-negative patients have a 20-30% probability of developing metastatic disease, lymph node information alone is insufficient to accurately assess individual risk. Molecular approaches, such as multigene expression panels, analyze a set of cancer-related genes that more accurately predict the early risk of metastasis and the treatment response. Here, we present N-Myc downstream-regulated gene 4 (NDRG4) epigenetic silencing as a mechanistic biomarker of metastasis in ductal invasive breast tumors. While aberrant NDRG4 DNA hypermethylation is significantly associated with the development of metastatic disease, downregulation of NDRG4 transcription and protein expression is functionally associated with enhanced lymph node adhesion and cell mobility. Here, we show that epigenetic silencing of NDRG4 modulates integrin signaling by assembling β1-integrins into large punctate clusters at the leading edge of tumor cells to promote an "adhesive switch," decreasing cell adhesion to fibronectin and increasing cell adhesion and migration towards vitronectin, an important component of human lymph nodes. Taken together, our functional and clinical observations suggest that NDRG4 is a potential mechanistic biomarker in breast cancer that is functionally associated with metastatic disease.
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Affiliation(s)
| | | | - Luciana N. S. Andrade
- Laboratório de Oncologia Experimental, Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP Brazil
| | - Camila L. Machado
- Laboratório de Oncologia Experimental, Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP Brazil
| | | | | | - Lilian T. Inoue
- Centro de Oncologia Molecular, Hospital Sírio-Libanês, São Paulo, SP Brazil
| | - Paula F. Asprino
- Centro de Oncologia Molecular, Hospital Sírio-Libanês, São Paulo, SP Brazil
| | | | | | | | - Vladmir C. de Lima
- Centro Internacional de Pesquisa, A.C. Camargo Cancer Center, Fundação Antônio Prudente, São Paulo, SP Brazil
| | - Dirce M. Carraro
- Centro Internacional de Pesquisa, A.C. Camargo Cancer Center, Fundação Antônio Prudente, São Paulo, SP Brazil
| | - Helena P. Brentani
- LIM23-Instituto de Psiquiatria, Faculdade de Medicina da Universidade de São Paulo (USP), São Paulo, Brazil
| | | | | | | | - Roger Chammas
- Laboratório de Oncologia Experimental, Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo, São Paulo, SP Brazil
| | - Anamaria A. Camargo
- Centro de Oncologia Molecular, Hospital Sírio-Libanês, São Paulo, SP Brazil
- Ludwig Institute for Cancer Research (LICR), São Paulo, Brazil
| | - Érico T. Costa
- Centro de Oncologia Molecular, Hospital Sírio-Libanês, São Paulo, SP Brazil
- Ludwig Institute for Cancer Research (LICR), São Paulo, Brazil
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17
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Han P, Lei Y, Li D, Liu J, Yan W, Tian D. Ten years of research on the role of BVES/ POPDC1 in human disease: a review. Onco Targets Ther 2019; 12:1279-1291. [PMID: 30863095 PMCID: PMC6388986 DOI: 10.2147/ott.s192364] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Since the blood vessel epicardial substance or Popeye domain-containing protein 1 (BVES/POPDC1) was first identified in the developing heart by two independent laboratories in 1999, an increasing number of studies have investigated the structure, function, and related diseases of BVES/POPDC1. During the first 10 years following the discovery of BVES/POPDC1, studies focused mainly on its structure, expression patterns, and functions. Based on these studies, further investigations conducted over the previous decade examined the role of BVES/POPDC1 in human diseases, such as colitis, heart diseases, and human cancers. This review provides an overview of the structure and expression of BVES/POPDC1, mainly focusing on its potential role and mechanism through which it is involved in human cancers.
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Affiliation(s)
- Ping Han
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, ;
| | - Yu Lei
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, ;
| | - Dongxiao Li
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, ;
| | - Jingmei Liu
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, ;
| | - Wei Yan
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, ;
| | - Dean Tian
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China, ;
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18
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Quantitative temporal analysis of protein dynamics in cardiac remodeling. J Mol Cell Cardiol 2018; 121:163-172. [PMID: 30009778 DOI: 10.1016/j.yjmcc.2018.07.126] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 06/20/2018] [Accepted: 07/09/2018] [Indexed: 01/02/2023]
Abstract
Cardiac remodeling (CR) is a complex dynamic process common to many heart diseases. CR is characterized as a temporal progression of global adaptive and maladaptive perturbations. The complex nature of this process clouds a comprehensive understanding of CR, but greater insight into the processes and mechanisms has potential to identify new therapeutic targets. To provide a deeper understanding of this important cardiac process, we applied a new proteomic technique, PALM (Pulse Azidohomoalanine in Mammals), to quantitate the newly-synthesized protein (NSP) changes during the progression of isoproterenol (ISO)-induced CR in the mouse left ventricle. This analysis revealed a complex combination of adaptive and maladaptive alterations at acute and prolonged time points including the identification of proteins not previously associated with CR. We also combined the PALM dataset with our published protein turnover rate dataset to identify putative biochemical mechanisms underlying CR. The novel integration of analyzing NSPs together with their protein turnover rates demonstrated that alterations in specific biological pathways (e.g., inflammation and oxidative stress) are produced by differential regulation of protein synthesis and degradation.
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19
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Zhu M, Zheng R, Guo Y, Zhang Y, Zuo B. NDRG4 promotes myogenesis via Akt/CREB activation. Oncotarget 2017; 8:101720-101734. [PMID: 29254199 PMCID: PMC5731909 DOI: 10.18632/oncotarget.21591] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 09/03/2017] [Indexed: 11/25/2022] Open
Abstract
N-Myc downstream-regulated gene 4 (NDRG4) plays an important role in biological processes and pathogenesis, but its function in muscle development is unclear. In this study, we investigated the function of the NDRG4 gene in the regulation of myogenic differentiation. NDRG4 expression is upregulated during muscle regeneration and C2C12 myoblast differentiation. Gain and loss of function studies revealed that NDRG4 dramatically promotes expression of myogenic differentiation factor (MyoD), myogenin (MyoG), and myosin heavy chain (MyHC) genes and myotube formation. Mechanistically, the binding of NDRG4 to carboxyl-terminal modulator protein (CTMP) abates the interaction of CTMP and protein kinase B (Akt) and increases the phosphorylation of Akt and cAMP response element binding protein (CREB), which leads to increased expression of myogenic genes. Our results reveal that NDRG4 promotes myogenic differentiation via Akt/CREB activation.
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Affiliation(s)
- Mingfei Zhu
- Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture & Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Rong Zheng
- Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture & Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Yiwen Guo
- Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture & Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Yunxia Zhang
- College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou 466000, China
| | - Bo Zuo
- Key Laboratory of Swine Genetics and Breeding of Ministry of Agriculture & Key Laboratory of Agriculture Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R. China
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan 430070, China
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20
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Ridge LA, Mitchell K, Al-Anbaki A, Shaikh Qureshi WM, Stephen LA, Tenin G, Lu Y, Lupu IE, Clowes C, Robertson A, Barnes E, Wright JA, Keavney B, Ehler E, Lovell SC, Kadler KE, Hentges KE. Non-muscle myosin IIB (Myh10) is required for epicardial function and coronary vessel formation during mammalian development. PLoS Genet 2017; 13:e1007068. [PMID: 29084269 PMCID: PMC5697871 DOI: 10.1371/journal.pgen.1007068] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 11/21/2017] [Accepted: 10/11/2017] [Indexed: 01/01/2023] Open
Abstract
The coronary vasculature is an essential vessel network providing the blood supply to the heart. Disruptions in coronary blood flow contribute to cardiac disease, a major cause of premature death worldwide. The generation of treatments for cardiovascular disease will be aided by a deeper understanding of the developmental processes that underpin coronary vessel formation. From an ENU mutagenesis screen, we have isolated a mouse mutant displaying embryonic hydrocephalus and cardiac defects (EHC). Positional cloning and candidate gene analysis revealed that the EHC phenotype results from a point mutation in a splice donor site of the Myh10 gene, which encodes NMHC IIB. Complementation testing confirmed that the Myh10 mutation causes the EHC phenotype. Characterisation of the EHC cardiac defects revealed abnormalities in myocardial development, consistent with observations from previously generated NMHC IIB null mouse lines. Analysis of the EHC mutant hearts also identified defects in the formation of the coronary vasculature. We attribute the coronary vessel abnormalities to defective epicardial cell function, as the EHC epicardium displays an abnormal cell morphology, reduced capacity to undergo epithelial-mesenchymal transition (EMT), and impaired migration of epicardial-derived cells (EPDCs) into the myocardium. Our studies on the EHC mutant demonstrate a requirement for NMHC IIB in epicardial function and coronary vessel formation, highlighting the importance of this protein in cardiac development and ultimately, embryonic survival.
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Affiliation(s)
- Liam A. Ridge
- Division of Evolution and Genome Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Karen Mitchell
- Division of Evolution and Genome Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Ali Al-Anbaki
- Division of Evolution and Genome Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Wasay Mohiuddin Shaikh Qureshi
- Division of Evolution and Genome Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Louise A. Stephen
- Division of Evolution and Genome Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Gennadiy Tenin
- Division of Evolution and Genome Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Yinhui Lu
- Wellcome Trust Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Irina-Elena Lupu
- Division of Evolution and Genome Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Christopher Clowes
- Division of Evolution and Genome Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Abigail Robertson
- Division of Evolution and Genome Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Emma Barnes
- Syngenta Ltd, Jealott’s Hill International Research Centre, Bracknell, United Kingdom
| | - Jayne A. Wright
- Syngenta Ltd, Jealott’s Hill International Research Centre, Bracknell, United Kingdom
| | - Bernard Keavney
- Division of Cardiovascular Sciences, School of Medical Sciences, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
- Manchester Heart Centre, Central Manchester University Hospitals NHS Foundation Trust, Manchester, United Kingdom
| | - Elisabeth Ehler
- The Randall Division of Cell and Molecular Biophysics and the Cardiovascular Division, Kings College London, London, United Kingdom
| | - Simon C. Lovell
- Division of Evolution and Genome Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Karl E. Kadler
- Wellcome Trust Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
| | - Kathryn E. Hentges
- Division of Evolution and Genome Sciences, School of Biological Sciences, Faculty of Biology, Medicine, and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, United Kingdom
- * E-mail:
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21
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Brand T, Schindler R. New kids on the block: The Popeye domain containing (POPDC) protein family acting as a novel class of cAMP effector proteins in striated muscle. Cell Signal 2017; 40:156-165. [PMID: 28939104 PMCID: PMC6562197 DOI: 10.1016/j.cellsig.2017.09.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/18/2017] [Accepted: 09/18/2017] [Indexed: 01/16/2023]
Abstract
The cyclic 3′,5′-adenosine monophosphate (cAMP) signalling pathway constitutes an ancient signal transduction pathway present in prokaryotes and eukaryotes. Previously, it was thought that in eukaryotes three effector proteins mediate cAMP signalling, namely protein kinase A (PKA), exchange factor directly activated by cAMP (EPAC) and the cyclic-nucleotide gated channels. However, recently a novel family of cAMP effector proteins emerged and was termed the Popeye domain containing (POPDC) family, which consists of three members POPDC1, POPDC2 and POPDC3. POPDC proteins are transmembrane proteins, which are abundantly present in striated and smooth muscle cells. POPDC proteins bind cAMP with high affinity comparable to PKA. Presently, their biochemical activity is poorly understood. However, mutational analysis in animal models as well as the disease phenotype observed in patients carrying missense mutations suggests that POPDC proteins are acting by modulating membrane trafficking of interacting proteins. In this review, we will describe the current knowledge about this gene family and also outline the apparent gaps in our understanding of their role in cAMP signalling and beyond. Popeye domain containing (POPDC) proteins are novel class of cAMP effector proteins. POPDC proteins control membrane trafficking of interacting proteins. POPDC proteins play a role in cardiac pacemaking and atrioventricular conduction. Mutations of POPDC genes are causing muscular dystrophy.
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Affiliation(s)
- Thomas Brand
- Developmental Dynamics, Myocardial Function, National Heart and Lung Institute, Imperial College London, United Kingdom.
| | - Roland Schindler
- Developmental Dynamics, Myocardial Function, National Heart and Lung Institute, Imperial College London, United Kingdom
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22
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Vaes N, Lentjes MHFM, Gijbels MJ, Rademakers G, Daenen KL, Boesmans W, Wouters KAD, Geuzens A, Qu X, Steinbusch HPJ, Rutten BPF, Baldwin SH, Sharkey KA, Hofstra RMW, van Engeland M, Vanden Berghe P, Melotte V. NDRG4, an early detection marker for colorectal cancer, is specifically expressed in enteric neurons. Neurogastroenterol Motil 2017; 29. [PMID: 28524415 DOI: 10.1111/nmo.13095] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 03/30/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Promoter methylation of N-myc Downstream-Regulated Gene 4 (NDRG4) in fecal DNA is an established early detection marker for colorectal cancer (CRC). Despite its connection to CRC, NDRG4 is predominantly studied in brain and heart, with little to no knowledge about its expression or role in other organs. In this study, we aimed to determine the whole-body expression of NDRG4, with a focus on the intestinal tract. METHODS We investigated NDRG4 expression throughout the body by immunohistochemistry, Western Blotting and in situ mRNA hybridization using tissues from NDRG4 wild-type, heterozygous and knockout mice and humans. In addition, we explored cell-specific expression of NDRG4 in murine whole-mount gut preparations using immunofluorescence and confocal microscopy. KEY RESULTS NDRG4 is specifically expressed within nervous system structures throughout the body. In the intestinal tract of both mouse and man, NDRG4 immunoreactivity was restricted to the enteric nervous system (ENS), where it labeled cell bodies of the myenteric and submucosal plexuses and interconnecting nerve fibers. More precisely, NDRG4 expression was limited to neurons, as NDRG4 always co-localized with HuC/D (pan-neuronal marker) but never with GFAP (an enteric glial cell marker). Furthermore, NDRG4 was expressed in various neuropeptide Y positive neurons, but was only found in a minority (~10%) of neurons expressing neuronal nitric oxide synthase. CONCLUSIONS AND INFERENCES NDRG4 is exclusively expressed by central, peripheral and enteric neurons/nerves, suggesting a neuronal-specific role of this protein. Our findings raise the question whether NDRG4, via the ENS, an understudied component of the tumor microenvironment, supports CRC development and/or progression.
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Affiliation(s)
- N Vaes
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - M H F M Lentjes
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - M J Gijbels
- Departments of Pathology and Molecular Genetics, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Department of Medical Biochemistry, Academic Medical Center, Amsterdam, The Netherlands
| | - G Rademakers
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - K L Daenen
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - W Boesmans
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands.,Laboratory for Enteric Neuroscience (LENS); Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical and Experimental Medicine, University of Leuven, Leuven, Belgium
| | - K A D Wouters
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - A Geuzens
- Laboratory for Enteric Neuroscience (LENS); Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical and Experimental Medicine, University of Leuven, Leuven, Belgium
| | - X Qu
- Department of Pediatric Cardiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - H P J Steinbusch
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Maastricht University Medical Centre, Maastricht, The Netherlands
| | - B P F Rutten
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNS), Maastricht University Medical Centre, Maastricht, The Netherlands
| | - S H Baldwin
- Department of Pediatric Cardiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - K A Sharkey
- Hotchkiss Brain Institute and Snyder Institute for Chronic Diseases, Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - R M W Hofstra
- Department of Clinical Genetics, University of Rotterdam, EMC, Rotterdam, The Netherlands
| | - M van Engeland
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - P Vanden Berghe
- Laboratory for Enteric Neuroscience (LENS); Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Clinical and Experimental Medicine, University of Leuven, Leuven, Belgium
| | - V Melotte
- Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands.,Department of Clinical Genetics, University of Rotterdam, EMC, Rotterdam, The Netherlands
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23
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The role of enteric neurons in the development and progression of colorectal cancer. Biochim Biophys Acta Rev Cancer 2017; 1868:420-434. [PMID: 28847715 DOI: 10.1016/j.bbcan.2017.08.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 08/16/2017] [Accepted: 08/17/2017] [Indexed: 02/06/2023]
Abstract
The enteric nervous system (ENS) is the intrinsic neural network of the gastrointestinal tract, which is essential for regulating gut functions and intestinal homeostasis. The importance of the ENS is underscored by the existence of severe gastrointestinal diseases, such as Hirschsprung's disease and intestinal pseudo-obstruction, which arise when the ENS fails to develop normally or becomes dysregulated. Moreover, it is known that enteric neurons are involved in intestinal inflammation. However, the role of the ENS in colorectal cancer (CRC) carcinogenesis remains poorly understood, even though processes like perineural invasion and neoneurogenesis are important factors in CRC. Here we summarize how enteric neurons are affected during CRC and discuss the influence of enteric neurons, either direct or indirect, on the development and/or progression of CRC. Finally, we illustrate how the ENS could be targeted as a potential anti-cancer therapy, establishing the ENS as an integral part of the tumor microenvironment.
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24
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Ma LL, Shen L, Tong GH, Tang N, Luo Y, Guo LL, Hu CT, Huang YX, Huang G, Jing FY, Liu C, Li ZY, Zhou N, Yan QW, Lei Y, Zhu SJ, Cheng ZQ, Cao GW, Deng YJ, Ding YQ. Prohibitin, relocated to the front ends, can control the migration directionality of colorectal cancer cells. Oncotarget 2017; 8:76340-76356. [PMID: 29100316 PMCID: PMC5652710 DOI: 10.18632/oncotarget.19394] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 06/20/2017] [Indexed: 01/05/2023] Open
Abstract
Directional migration is a cost-effective movement allowing invasion and metastatic spread of cancer cells. Although migration related to cytoskeletal assembly and microenvironmental chemotaxis has been elucidated, little is known about interaction between extracellular and intracellular molecules for controlling the migrational directionality. A polarized expression of prohibitin (PHB) in the front ends of CRC cells favors metastasis and is correlated with poor prognosis for 545 CRC patients. A high level of vascular endothelial growth factor (VEGF) in the interstitial tissue of CRC patients is associated with metastasis. VEGF bound to its receptor, neuropilin-1, can stimulate the activation of cell division cycle 42, which recruits intra-mitochondrial PHB to the front end of a CRC cell. This intracellular relocation of PHB results in the polymerization and reorganization of filament actin extending to the front end of the cell. As a result, the migration directionality of CRC cells is targeted towards VEGF. Together, these findings identify PHB as a key modulator of directional migration of CRC cells and a target for metastasis.
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Affiliation(s)
- Li-Li Ma
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China.,Department of Cardiothoracic Surgery, Taishan City People's Hospital, Taishan 529200, China
| | - Lan Shen
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Gui-Hui Tong
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Na Tang
- Department of Pathology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, Shenzhen 518020, China
| | - Yang Luo
- Department of Urinary Surgery, Nanfang Hospital and the Fifth Affiliated Hospital of Southern Medical University, Guangzhou 510900, China
| | - Li-Li Guo
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Chun-Ting Hu
- Pathology Center, Shanghai General Hospital Faculty of Basic Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Ying-Xin Huang
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Guan Huang
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China.,Department of Pathology, Longgang District Central Hospital of Shenzhen, Shenzhen 518116, China
| | - Fang-Yan Jing
- Department of Anorectal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Chao Liu
- Department of Pathology and Laboratory Medicine, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Zhuo-Yi Li
- Department of Cardiothoracic Surgery, Taishan City People's Hospital, Taishan 529200, China
| | - Na Zhou
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Qian-Wen Yan
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Yan Lei
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Shi-Jie Zhu
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Zhi-Qiang Cheng
- Department of Pathology, Shenzhen People's Hospital, Second Clinical Medical College of Jinan University, Shenzhen 518020, China
| | - Guang-Wen Cao
- Department of Epidemiology, Second Military Medical University, Shanghai 200433, China
| | - Yong-Jian Deng
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
| | - Yan-Qing Ding
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, China
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25
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Extracellular matrix endocytosis in controlling matrix turnover and beyond: emerging roles in cancer. Biochem Soc Trans 2017; 44:1347-1354. [PMID: 27911717 DOI: 10.1042/bst20160159] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 07/28/2016] [Accepted: 08/01/2016] [Indexed: 12/16/2022]
Abstract
The extracellular matrix (ECM) is a network of secreted proteins that, beyond providing support for tissues and organs, is involved in the regulation of a variety of cell functions, including cell proliferation, polarity, migration and oncogenic transformation. ECM homeostasis is maintained through a tightly controlled balance between synthesis, deposition and degradation. While the role of metalloproteases in ECM degradation is widely recognised, the contribution of ECM internalisation and intracellular degradation to ECM maintenance has been mostly overlooked. In this review, I will summarise what is known about the molecular mechanisms mediating ECM endocytosis and how this process impacts on diseases, such as fibrosis and cancer.
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26
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Fibronectin promotes directional persistence in fibroblast migration through interactions with both its cell-binding and heparin-binding domains. Sci Rep 2017. [PMID: 28623309 PMCID: PMC5473823 DOI: 10.1038/s41598-017-03701-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The precise mechanisms through which insoluble, cell-adhesive ligands induce and regulate directional cell migration remain obscure. We recently demonstrated that elevated surface density of physically adsorbed plasma fibronectin (FN) promotes high directional persistence in fibroblast migration. While cell-FN association through integrins α5β1 and αvβ3 was necessary, substrates that selectively engaged these integrins did not support the phenotype. We here show that high directional persistence necessitates a combination of the cell-binding and C-terminal heparin-binding domains of FN, but does not require the engagement of syndecan-4 or integrin α4β1. FN treatment with various fixation agents indicated that associated changes in fibroblast motility were due to biochemical changes, rather than alterations in its physical state. The nature of the coating determined the ability of fibroblasts to assemble endogenous or exogenous FN, while FN fibrillogenesis played a minor, but significant, role in regulating directionality. Interestingly, knockdown of cellular FN abolished cell motility altogether, demonstrating a requirement for intracellular processes in enabling fibroblast migration on FN. Lastly, kinase inhibition experiments revealed that regulation of cell speed and directional persistence are decoupled. Hence, we have identified factors that render full-length FN a promoter of directional migration and discuss the possible, relevant mechanisms.
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27
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Kliminski V, Uziel O, Kessler-Icekson G. Popdc1/Bves Functions in the Preservation of Cardiomyocyte Viability While Affecting Rac1 Activity and Bnip3 Expression. J Cell Biochem 2016; 118:1505-1517. [PMID: 27886395 DOI: 10.1002/jcb.25810] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 11/23/2016] [Indexed: 01/15/2023]
Abstract
The Popeye domain containing1, also called Bves (Popdc1/Bves), is a transmembrane protein that functions in muscle regeneration, heart rate regulation, hypoxia tolerance, and ischemia preconditioning. The expression of Popdc1/Bves is elevated in cardiomyocytes maintained in serum free defined medium. We hypothesized that Popdc1/Bves is important for cardiomyocyte survival under the stress of serum deprivation and investigated the mechanisms involved. A deficit in Popdc1/Bves, achieved by siRNA-mediated gene silencing, results in cardiomyocyte injury and death, upregulation of the pro-apoptotic protein Bcl-2/adenovirus E1B 19-kDa interacting protein3 (Bnip3), as well as reduction in Rac1-GTPase activity and in Akt phosphorylation. Combined Popdc1/Bves and Bnip3 silencing attenuated cell injury and prevented Bnip3 upregulation induced by the silencing of Popdc1/Bves alone. Chromatin immunoprecipitation indicated an increased binding of the transcription factor FoxO3 to the Bnip3 promoter although augmentation of FoxO3 in the nuclei was not detected. By contrast, the transcription factor NFκB was excluded from the nuclei of Popdc1/Bves deficient cardiomyocytes and exhibited decreased binding to the Bnip3 promoter. The data indicates that Popdc1/Bves plays a role in the preservation of cardiomyocyte viability under serum deficiency through the alteration of Rac1 activity and the regulation of Bnip3 expression by FoxO3 and NFκB transcription factors pointing to Popdc1/Bves as a potential target to enhance heart protection. J. Cell. Biochem. 118: 1505-1517, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Vitaly Kliminski
- The Felsenstein Medical Research Center, Sackler Faculty of Medicine and Rabin Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Orit Uziel
- The Felsenstein Medical Research Center, Sackler Faculty of Medicine and Rabin Medical Center, Tel-Aviv University, Tel-Aviv, Israel
| | - Gania Kessler-Icekson
- The Felsenstein Medical Research Center, Sackler Faculty of Medicine and Rabin Medical Center, Tel-Aviv University, Tel-Aviv, Israel
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28
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Fontenas L, De Santis F, Di Donato V, Degerny C, Chambraud B, Del Bene F, Tawk M. Neuronal Ndrg4 Is Essential for Nodes of Ranvier Organization in Zebrafish. PLoS Genet 2016; 12:e1006459. [PMID: 27902705 PMCID: PMC5130175 DOI: 10.1371/journal.pgen.1006459] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 11/03/2016] [Indexed: 11/19/2022] Open
Abstract
Axon ensheathment by specialized glial cells is an important process for fast propagation of action potentials. The rapid electrical conduction along myelinated axons is mainly due to its saltatory nature characterized by the accumulation of ion channels at the nodes of Ranvier. However, how these ion channels are transported and anchored along axons is not fully understood. We have identified N-myc downstream-regulated gene 4, ndrg4, as a novel factor that regulates sodium channel clustering in zebrafish. Analysis of chimeric larvae indicates that ndrg4 functions autonomously within neurons for sodium channel clustering at the nodes. Molecular analysis of ndrg4 mutants shows that expression of snap25 and nsf are sharply decreased, revealing a role of ndrg4 in controlling vesicle exocytosis. This uncovers a previously unknown function of ndrg4 in regulating vesicle docking and nodes of Ranvier organization, at least through its ability to finely tune the expression of the t-SNARE/NSF machinery. Myelination is an important process that enables fast propagation of action potential along the axons. Schwann cells (SCs) are the specialized glial cells that ensure the ensheathment of the corresponding axons in the Peripheral Nervous System. In order to do so, SCs and axons need to communicate to organize the myelinating segments and the clustering of sodium channels at the nodes of Ranvier. We have investigated the early events of myelination in the zebrafish embryo. We here identify ndrg4 as a novel neuronal factor essential for sodium channel clustering at the nodes. Immuno-labeling analysis show defective vesicle patterning along the axons of ndrg4 mutants, while timelapse experiments monitoring the presence and the transport of these vesicles reveal a normal behavior. Molecular analysis unravels a novel function of ndrg4 in controlling the expression of the t-SNARE/NSF machinery required for vesicle docking and release. However, inhibiting specifically regulated synaptic vesicle release does not lead to sodium channel clustering defects. We thus propose that ndrg4 can regulate this process, at least partially, through its ability to regulate the expression of key components of the t-SNARE/NSF machinery, responsible for clustering of sodium channels along myelinated axons.
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Affiliation(s)
- Laura Fontenas
- U1195, Inserm, University Paris Sud, University Paris-Saclay, Kremlin-Bicêtre, France
| | | | | | - Cindy Degerny
- U1195, Inserm, University Paris Sud, University Paris-Saclay, Kremlin-Bicêtre, France
| | - Béatrice Chambraud
- U1195, Inserm, University Paris Sud, University Paris-Saclay, Kremlin-Bicêtre, France
| | | | - Marcel Tawk
- U1195, Inserm, University Paris Sud, University Paris-Saclay, Kremlin-Bicêtre, France
- * E-mail:
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29
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Novel therapeutic strategies targeting fibroblasts and fibrosis in heart disease. Nat Rev Drug Discov 2016; 15:620-638. [PMID: 27339799 DOI: 10.1038/nrd.2016.89] [Citation(s) in RCA: 220] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Our understanding of the functions of cardiac fibroblasts has moved beyond their roles in heart structure and extracellular matrix generation and now includes their contributions to paracrine, mechanical and electrical signalling during ontogenesis and normal cardiac activity. Fibroblasts also have central roles in pathogenic remodelling during myocardial ischaemia, hypertension and heart failure. As key contributors to scar formation, they are crucial for tissue repair after interventions including surgery and ablation. Novel experimental approaches targeting cardiac fibroblasts are promising potential therapies for heart disease. Indeed, several existing drugs act, at least partially, through effects on cardiac connective tissue. This Review outlines the origins and roles of fibroblasts in cardiac development, homeostasis and disease; illustrates the involvement of fibroblasts in current and emerging clinical interventions; and identifies future targets for research and development.
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30
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Schindler RF, Scotton C, French V, Ferlini A, Brand T. The Popeye Domain Containing Genes and their Function in Striated Muscle. J Cardiovasc Dev Dis 2016; 3. [PMID: 27347491 PMCID: PMC4918794 DOI: 10.3390/jcdd3020022] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 05/31/2016] [Accepted: 06/13/2016] [Indexed: 01/06/2023] Open
Abstract
The Popeye domain containing (POPDC) genes encode a novel class of cAMP effector proteins, which are abundantly expressed in heart and skeletal muscle. Here, we will review their role in striated muscle as deduced from work in cell and animal models and the recent analysis of patients carrying a missense mutation in POPDC1. Evidence suggests that POPDC proteins control membrane trafficking of interacting proteins. Furthermore, we will discuss the current catalogue of established protein-protein interactions. In recent years, the number of POPDC-interacting proteins has been rising and currently includes ion channels (TREK-1), sarcolemma-associated proteins serving functions in mechanical stability (dystrophin), compartmentalization (caveolin 3), scaffolding (ZO-1), trafficking (NDRG4, VAMP2/3) and repair (dysferlin) or acting as a guanine nucleotide exchange factor for Rho-family GTPases (GEFT). Recent evidence suggests that POPDC proteins might also control the cellular level of the nuclear proto-oncoprotein c-Myc. These data suggest that this family of cAMP-binding proteins probably serves multiple roles in striated muscle.
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Affiliation(s)
- Roland Fr Schindler
- Developmental Dynamics, Harefield Heart Science Centre, National Heart and Lung Institute, Imperial College London, Hill End Road, Harefield, UB9 6JH, United Kingdom
| | - Chiara Scotton
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy
| | - Vanessa French
- Developmental Dynamics, Harefield Heart Science Centre, National Heart and Lung Institute, Imperial College London, Hill End Road, Harefield, UB9 6JH, United Kingdom
| | - Alessandra Ferlini
- Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy
| | - Thomas Brand
- Developmental Dynamics, Harefield Heart Science Centre, National Heart and Lung Institute, Imperial College London, Hill End Road, Harefield, UB9 6JH, United Kingdom
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31
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Kotipatruni RP, Ren X, Thotala D, Jaboin JJ. NDRG4 is a novel oncogenic protein and p53 associated regulator of apoptosis in malignant meningioma cells. Oncotarget 2016; 6:17594-604. [PMID: 26053091 PMCID: PMC4627331 DOI: 10.18632/oncotarget.4009] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Accepted: 05/14/2015] [Indexed: 12/20/2022] Open
Abstract
Aggressive meningiomas exhibit high levels of recurrence, morbidity and mortality. When surgical and radiation options are exhausted, there is need for novel molecularly-targeted therapies. We have recently identified NDRG4 overexpression in aggressive meningiomas. NDRG4 is a member of the N-Myc Downstream Regulated Gene (NDRG) family of the alpha/beta hydrolase superfamily. We have demonstrated that NDRG4 downregulation results in decreased cell proliferation, migration and invasion. In follow up to our prior studies; here we demonstrate that the predominant form of cell death following NDRG4 silencing is apoptosis, utilizing Annexin-V flow cytometry assay. We show that apoptosis caused by p53 upregulation, phosphorylation at Ser15, BAX activation, Bcl-2 and BcL-xL downregulation, mitochondrial cytochrome c release and execution of caspases following NDRG4 depletion. Sub-cellular distribution of BAX and cytochrome c indicated mitochondrial-mediated apoptosis. In addition, we carried out the fluorescence cytochemical analysis to confirm mitochondrial-mediated apoptosis by changes in mitochondrial membrane potential (Ψm), using JC-1 dye. Immunoprecipitation and immunofluorescence confirmed binding of NDRG4 to p53. In addition, we demonstrate that apoptosis is mitochondrial and p53 dependent. The proapoptotic effect of p53 was verified by the results in which a small molecule compound PFT-α, an inhibitor of p53 phosphorylation, is greatly protected against targeting NDRG4 induced apoptosis. These findings bring novel insight to the roles of NDRG4 in meningioma progression. A better understanding of this pathway and its role in meningioma carcinogenesis and cell biology is promising for the development of novel therapeutic targets for the management of aggressive meningiomas.
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Affiliation(s)
- Rama P Kotipatruni
- Department of Radiation Oncology, Cancer Biology Division, School of Medicine, Washington University in Saint Louis, St. Louis, Missouri, USA
| | - Xuan Ren
- Department of Radiation Oncology, Cancer Biology Division, School of Medicine, Washington University in Saint Louis, St. Louis, Missouri, USA
| | - Dinesh Thotala
- Department of Radiation Oncology, Cancer Biology Division, School of Medicine, Washington University in Saint Louis, St. Louis, Missouri, USA.,Siteman Cancer Center, Washington University in Saint Louis, St. Louis, Missouri, USA
| | - Jerry J Jaboin
- Department of Radiation Oncology, Cancer Biology Division, School of Medicine, Washington University in Saint Louis, St. Louis, Missouri, USA.,Siteman Cancer Center, Washington University in Saint Louis, St. Louis, Missouri, USA
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32
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Pfaltzgraff ER, Roth GM, Miller PM, Gintzig AG, Ohi R, Bader DM. Loss of CENP-F results in distinct microtubule-related defects without chromosomal abnormalities. Mol Biol Cell 2016; 27:1990-9. [PMID: 27146114 PMCID: PMC4927273 DOI: 10.1091/mbc.e15-12-0848] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 04/27/2016] [Indexed: 01/09/2023] Open
Abstract
Microtubule (MT)-binding centromere protein F (CENP-F) was previously shown to play a role exclusively in chromosome segregation during cellular division. Many cell models of CENP-F depletion show a lag in the cell cycle and aneuploidy. Here, using our novel genetic deletion model, we show that CENP-F also regulates a broader range of cellular functions outside of cell division. We characterized CENP-F(+/+) and CENP-F(-/-) mouse embryonic fibroblasts (MEFs) and found drastic differences in multiple cellular functions during interphase, including cell migration, focal adhesion dynamics, and primary cilia formation. We discovered that CENP-F(-/-) MEFs have severely diminished MT dynamics, which underlies the phenotypes we describe. These data, combined with recent biochemical research demonstrating the strong binding of CENP-F to the MT network, support the conclusion that CENP-F is a powerful regulator of MT dynamics during interphase and affects heterogeneous cell functions.
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Affiliation(s)
- Elise R Pfaltzgraff
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University, Nashville, TN 37232
| | - Gretchen M Roth
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University, Nashville, TN 37232
| | - Paul M Miller
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University, Nashville, TN 37232
| | - Anneelizabeth G Gintzig
- Division of Hematology-Oncology, Department of Pediatrics, Vanderbilt University, Nashville, TN 37232
| | - Ryoma Ohi
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37232
| | - David M Bader
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University, Nashville, TN 37232
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Vega ME, Schwarzbauer JE. Collaboration of fibronectin matrix with other extracellular signals in morphogenesis and differentiation. Curr Opin Cell Biol 2016; 42:1-6. [PMID: 27062478 DOI: 10.1016/j.ceb.2016.03.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 03/22/2016] [Indexed: 10/22/2022]
Abstract
Tissue formation and cell differentiation depend on a properly assembled extracellular matrix (ECM). Fibronectin is a key constituent of the pericellular ECM, forming essential connections between cell surface integrin receptors and structural components of the ECM. Recent studies using vertebrate models, conditional gene knockouts, tissue explants, and cell culture systems have identified developmental processes that depend on fibronectin and its receptor α5β1 integrin. We describe requirements for fibronectin matrix in the cardiovascular system, somite and precartilage development, and epithelial-mesenchymal transition. Information about molecular mechanisms shows the importance of fibronectin and integrins during tissue morphogenesis and cell differentiation, as well as their cooperation with growth factors to mediate changes in cell behaviors.
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Affiliation(s)
- Maria E Vega
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544-1014, United States
| | - Jean E Schwarzbauer
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544-1014, United States.
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Tandon P, Wilczewski CM, Williams CE, Conlon FL. The Lhx9-integrin pathway is essential for positioning of the proepicardial organ. Development 2016; 143:831-40. [PMID: 26811386 DOI: 10.1242/dev.129551] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 01/15/2016] [Indexed: 12/15/2022]
Abstract
The development of the vertebrate embryonic heart occurs by hyperplastic growth as well as the incorporation of cells from tissues outside of the initial heart field. Amongst these tissues is the epicardium, a cell structure that develops from the precursor proepicardial organ on the right side of the septum transversum caudal to the developing heart. During embryogenesis, cells of the proepicardial organ migrate, adhere and envelop the maturing heart, forming the epicardium. The cells of the epicardium then delaminate and incorporate into the heart giving rise to cardiac derivatives, including smooth muscle cells and cardiac fibroblasts. Here, we demonstrate that the LIM homeodomain protein Lhx9 is transiently expressed in Xenopus proepicardial cells and is essential for the position of the proepicardial organ on the septum transversum. Utilizing a small-molecule screen, we found that Lhx9 acts upstream of integrin-paxillin signaling and consistently demonstrate that either loss of Lhx9 or disruption of the integrin-paxillin pathway results in mis-positioning of the proepicardial organ and aberrant deposition of extracellular matrix proteins. This leads to a failure of proepicardial cell migration and adhesion to the heart, and eventual death of the embryo. Collectively, these studies establish a requirement for the Lhx9-integrin-paxillin pathway in proepicardial organ positioning and epicardial formation.
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Affiliation(s)
- Panna Tandon
- Department of Biology, UNC at Chapel Hill, Chapel Hill, NC 27599-3280, USA Department of Genetics, UNC at Chapel Hill, Chapel Hill, NC 27599-3280, USA Integrative Program for Biological and Genome Sciences, UNC at Chapel Hill, Chapel Hill, NC 27599-3280, USA
| | - Caralynn M Wilczewski
- Department of Genetics, UNC at Chapel Hill, Chapel Hill, NC 27599-3280, USA Integrative Program for Biological and Genome Sciences, UNC at Chapel Hill, Chapel Hill, NC 27599-3280, USA
| | - Clara E Williams
- Integrative Program for Biological and Genome Sciences, UNC at Chapel Hill, Chapel Hill, NC 27599-3280, USA
| | - Frank L Conlon
- Department of Biology, UNC at Chapel Hill, Chapel Hill, NC 27599-3280, USA Department of Genetics, UNC at Chapel Hill, Chapel Hill, NC 27599-3280, USA Integrative Program for Biological and Genome Sciences, UNC at Chapel Hill, Chapel Hill, NC 27599-3280, USA University of North Carolina McAllister Heart Institute, UNC at Chapel Hill, Chapel Hill, NC 27599-3280, USA
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Qu X, Li J, Baldwin HS. Postnatal lethality and abnormal development of foregut and spleen in Ndrg4 mutant mice. Biochem Biophys Res Commun 2016; 470:613-619. [PMID: 26801554 DOI: 10.1016/j.bbrc.2016.01.096] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 01/15/2016] [Indexed: 12/20/2022]
Abstract
NDRG4 is a member of the NDRG family (N-myc downstream-regulated gene), which is highly expressed in brain and heart. Previous studies showed that Ndrg1-deficient mice exhibited a progressive demyelinating disorder of peripheral nerves and Ndrg4-deficient mice had spatial learning deficits and vulnerabilities to cerebral ischemia. Here, we report generation of Ndrg4 mutant alleles that exhibit several development defects different from those previously reported. Our homozygous mice showed growth retardation and postnatal lethality. Spleen and thymuses of Ndrg4(-/-) mice are considerably reduced in size from 3 weeks of age. Histological analysis revealed abnormal hyperkeratosis in the squamous foregut and abnormal loss of erythrocytes in the spleen of Ndrg4(-/-) mice. In addition, we observed an abnormal hind limb clasping phenotype upon tail suspension suggesting neurological abnormalities. Consistent to these abnormalities, Ndrg4 is expressed in smooth muscle cells of the stomach, macrophages of the spleen and neurons. Availability of the conditional allele for Ndrg4 should facilitate further detailed analyses of the potential roles of Ndrg4 in gut development, nervous system and immune system.
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Affiliation(s)
- Xianghu Qu
- Department of Pediatrics (Cardiology), Vanderbilt University Medical Center, Nashville, TN 37232, USA.
| | - Jing Li
- Department of Pediatrics (Cardiology), Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - H Scott Baldwin
- Department of Pediatrics (Cardiology), Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Cell and Development Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
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Schindler RFR, Brand T. The Popeye domain containing protein family--A novel class of cAMP effectors with important functions in multiple tissues. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2016; 120:28-36. [PMID: 26772438 PMCID: PMC4821176 DOI: 10.1016/j.pbiomolbio.2016.01.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 12/03/2015] [Accepted: 01/04/2016] [Indexed: 12/12/2022]
Abstract
Popeye domain containing (Popdc) proteins are a unique family, which combine several different properties and functions in a surprisingly complex fashion. They are expressed in multiple tissues and cell types, present in several subcellular compartments, interact with different classes of proteins, and are associated with a variety of physiological and pathophysiological processes. Moreover, Popdc proteins bind the second messenger cAMP with high affinity and it is thought that they act as a novel class of cAMP effector proteins. Here, we will review the most important findings about the Popdc family, which accumulated since its discovery about 15 years ago. We will be focussing on Popdc protein interaction and function in striated muscle tissue. However, as a full picture only emerges if all aspects are taken into account, we will also describe what is currently known about the role of Popdc proteins in epithelial cells and in various types of cancer, and discuss these findings with regard to their relevance for cardiac and skeletal muscle.
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Affiliation(s)
- Roland F R Schindler
- Heart Science Centre, National Heart and Lung Institute (NHLI), Imperial College London, United Kingdom
| | - Thomas Brand
- Heart Science Centre, National Heart and Lung Institute (NHLI), Imperial College London, United Kingdom.
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Schindler RFR, Scotton C, Zhang J, Passarelli C, Ortiz-Bonnin B, Simrick S, Schwerte T, Poon KL, Fang M, Rinné S, Froese A, Nikolaev VO, Grunert C, Müller T, Tasca G, Sarathchandra P, Drago F, Dallapiccola B, Rapezzi C, Arbustini E, Di Raimo FR, Neri M, Selvatici R, Gualandi F, Fattori F, Pietrangelo A, Li W, Jiang H, Xu X, Bertini E, Decher N, Wang J, Brand T, Ferlini A. POPDC1(S201F) causes muscular dystrophy and arrhythmia by affecting protein trafficking. J Clin Invest 2015; 126:239-53. [PMID: 26642364 DOI: 10.1172/jci79562] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 10/29/2015] [Indexed: 01/16/2023] Open
Abstract
The Popeye domain-containing 1 (POPDC1) gene encodes a plasma membrane-localized cAMP-binding protein that is abundantly expressed in striated muscle. In animal models, POPDC1 is an essential regulator of structure and function of cardiac and skeletal muscle; however, POPDC1 mutations have not been associated with human cardiac and muscular diseases. Here, we have described a homozygous missense variant (c.602C>T, p.S201F) in POPDC1, identified by whole-exome sequencing, in a family of 4 with cardiac arrhythmia and limb-girdle muscular dystrophy (LGMD). This allele was absent in known databases and segregated with the pathological phenotype in this family. We did not find the allele in a further screen of 104 patients with a similar phenotype, suggesting this mutation to be family specific. Compared with WT protein, POPDC1(S201F) displayed a 50% reduction in cAMP affinity, and in skeletal muscle from patients, both POPDC1(S201F) and WT POPDC2 displayed impaired membrane trafficking. Forced expression of POPDC1(S201F) in a murine cardiac muscle cell line (HL-1) increased hyperpolarization and upstroke velocity of the action potential. In zebrafish, expression of the homologous mutation (popdc1(S191F)) caused heart and skeletal muscle phenotypes that resembled those observed in patients. Our study therefore identifies POPDC1 as a disease gene causing a very rare autosomal recessive cardiac arrhythmia and LGMD, expanding the genetic causes of this heterogeneous group of inherited rare diseases.
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Abstract
Popdc (Popeye-domain-containing) genes encode membrane-bound proteins and are abundantly present in cardiac myocytes and in skeletal muscle fibres. Functional analysis of Popdc1 (Bves) and Popdc2 in mice and of popdc2 in zebrafish revealed an overlapping role for proper electrical conduction in the heart and maintaining structural integrity of skeletal muscle. Popdc proteins mediate cAMP signalling and modulate the biological activity of interacting proteins. The two-pore channel TREK-1 interacts with all three Popdc proteins. In Xenopus oocytes, the presence of Popdc proteins causes an enhanced membrane transport leading to an increase in TREK-1 current, which is blocked when cAMP levels are increased. Another important Popdc-interacting protein is caveolin 3, and the loss of Popdc1 affects caveolar size. Thus a family of membrane-bound cAMP-binding proteins has been identified, which modulate the subcellular localization of effector proteins involved in organizing signalling complexes and assuring proper membrane physiology of cardiac myocytes.
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Sung BH, Ketova T, Hoshino D, Zijlstra A, Weaver AM. Directional cell movement through tissues is controlled by exosome secretion. Nat Commun 2015; 6:7164. [PMID: 25968605 PMCID: PMC4435734 DOI: 10.1038/ncomms8164] [Citation(s) in RCA: 410] [Impact Index Per Article: 45.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 04/10/2015] [Indexed: 02/06/2023] Open
Abstract
Directional cell movement through tissues is critical for multiple biological processes and requires maintenance of polarity in the face of complex environmental cues. Here we use intravital imaging to demonstrate that secretion of exosomes from late endosomes is required for directionally persistent and efficient in vivo movement of cancer cells. Inhibiting exosome secretion or biogenesis leads to defective tumour cell migration associated with increased formation of unstable protrusions and excessive directional switching. In vitro rescue experiments with purified exosomes and matrix coating identify adhesion assembly as a critical exosome function that promotes efficient cell motility. Live-cell imaging reveals that exosome secretion directly precedes and promotes adhesion assembly. Fibronectin is found to be a critical motility-promoting cargo whose sorting into exosomes depends on binding to integrins. We propose that autocrine secretion of exosomes powerfully promotes directionally persistent and effective cell motility by reinforcing otherwise transient polarization states and promoting adhesion assembly.
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Affiliation(s)
- Bong Hwan Sung
- Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
| | - Tatiana Ketova
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
| | - Daisuke Hoshino
- Division of Cancer Cell Research, Kanagawa Cancer Center, Yokohama 241-8515, Japan
| | - Andries Zijlstra
- Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
| | - Alissa M. Weaver
- Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
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