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Haymour L, Jean M, Smulski C, Legembre P. CD95 (Fas) and CD95L (FasL)-mediated non-canonical signaling pathways. Biochim Biophys Acta Rev Cancer 2023; 1878:189004. [PMID: 37865305 DOI: 10.1016/j.bbcan.2023.189004] [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: 08/22/2023] [Accepted: 10/16/2023] [Indexed: 10/23/2023]
Abstract
Although the interaction of CD95L (also known as FasL) with its so-called death receptor CD95 (Fas) induces an apoptotic signal responsible for the elimination of infected and cancer cells and maintenance of tissue homeostasis, this receptor can also implement non apoptotic signaling pathways. This latter signaling is involved in metastatic dissemination in certain cancers and the severity of auto-immune disorders. The signaling complexity of this pair is increased by the fact that CD95 expression itself seems to contribute to oncogenesis via a CD95L-independent manner and, that both ligand and receptor might interact with other partners modulating their pathophysiological functions. Finally, CD95L itself can trigger cell signaling in immune cells rendering complex the interpretation of mouse models in which CD95 or CD95L are knocked out. Herein, we discuss these non-canonical responses and their biological functions.
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Affiliation(s)
- Layla Haymour
- UMR CNRS 7276, INSERM U1262, CRIBL, Université Limoges, Limoges, France
| | - Mickael Jean
- Université de Rennes, Institut des Sciences Chimiques de Rennes - UMR CNRS 6226 Equipe COrInt, Rennes F-35000, France
| | - Cristian Smulski
- Medical Physics Department, Centro Atómico Bariloche, Comisión Nacional de Energía Atómica (CNEA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Negro, Argentina
| | - Patrick Legembre
- UMR CNRS 7276, INSERM U1262, CRIBL, Université Limoges, Limoges, France.
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2
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Di Sabatino A, Santacroce G, Rossi CM, Broglio G, Lenti MV. Role of mucosal immunity and epithelial-vascular barrier in modulating gut homeostasis. Intern Emerg Med 2023; 18:1635-1646. [PMID: 37402104 PMCID: PMC10504119 DOI: 10.1007/s11739-023-03329-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 05/25/2023] [Indexed: 07/05/2023]
Abstract
The intestinal mucosa represents the most extensive human barrier having a defense function against microbial and food antigens. This barrier is represented externally by a mucus layer, consisting mainly of mucins, antimicrobial peptides, and secretory immunoglobulin A (sIgA), which serves as the first interaction with the intestinal microbiota. Below is placed the epithelial monolayer, comprising enterocytes and specialized cells, such as goblet cells, Paneth cells, enterochromaffin cells, and others, each with a specific protective, endocrine, or immune function. This layer interacts with both the luminal environment and the underlying lamina propria, where mucosal immunity processes primarily take place. Specifically, the interaction between the microbiota and an intact mucosal barrier results in the activation of tolerogenic processes, mainly mediated by FOXP3+ regulatory T cells, underlying intestinal homeostasis. Conversely, the impairment of the mucosal barrier function, the alteration of the normal luminal microbiota composition (dysbiosis), or the imbalance between pro- and anti-inflammatory mucosal factors may result in inflammation and disease. Another crucial component of the intestinal barrier is the gut-vascular barrier, formed by endothelial cells, pericytes, and glial cells, which regulates the passage of molecules into the bloodstream. The aim of this review is to examine the various components of the intestinal barrier, assessing their interaction with the mucosal immune system, and focus on the immunological processes underlying homeostasis or inflammation.
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Affiliation(s)
- Antonio Di Sabatino
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy.
- First Department of Internal Medicine, San Matteo Hospital Foundation, Pavia, Italy.
- Clinica Medica I, Fondazione IRCCS Policlinico San Matteo, Università di Pavia, Viale Golgi 19, 27100, Pavia, Italy.
| | - Giovanni Santacroce
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy
- First Department of Internal Medicine, San Matteo Hospital Foundation, Pavia, Italy
| | - Carlo Maria Rossi
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy
- First Department of Internal Medicine, San Matteo Hospital Foundation, Pavia, Italy
| | - Giacomo Broglio
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy
- First Department of Internal Medicine, San Matteo Hospital Foundation, Pavia, Italy
| | - Marco Vincenzo Lenti
- Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy
- First Department of Internal Medicine, San Matteo Hospital Foundation, Pavia, Italy
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3
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Rath T, Atreya R, Neurath MF. A spotlight on intestinal permeability and inflammatory bowel diseases. Expert Rev Gastroenterol Hepatol 2023; 17:893-902. [PMID: 37606514 DOI: 10.1080/17474124.2023.2242772] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 07/27/2023] [Indexed: 08/23/2023]
Abstract
INTRODUCTION The intestinal barrier is a multi-faced structure lining the surface of the intestinal mucosa of the GI tract. To exert its main functions as a physical and immunological defense barrier, several components of the intestinal barrier act in a concerted and cooperative manner. AREAS COVERED Herein, we first introduce to the basic organization of the intestinal barrier and then summarize different methods to assess barrier function in and ex vivo. Finally, we provide an in-depth overview of the relevance of intestinal barrier dysfunction in inflammatory bowel diseases. EXPERT OPINION In parallel to a more fundamental understanding of the intestinal barrier as a key component for intestinal integrity is the notion that intestinal barrier defects are associated with a variety of diseases such as inflammatory bowel diseases. Recent research has fueled and perpetuated the concept that barrier defects are critical components of disease development, disease behavior, and potentially also an area of therapeutic intervention in IBD patients. Although being far away from standard, new technologies can be used to easily assess barrier healing in IBD and to derive clinical consequences from these findings such as more accurate forecasting of future disease behavior or the identification of novel therapeutic targets.
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Affiliation(s)
- Timo Rath
- Department of Gastroenterology, Ludwig Demling Endoscopy Center of Excellence, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuernberg, Erlangen, Germany
| | - Raja Atreya
- Department of Gastroenterology, Ludwig Demling Endoscopy Center of Excellence, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuernberg, Erlangen, Germany
| | - Markus F Neurath
- Department of Gastroenterology, Ludwig Demling Endoscopy Center of Excellence, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuernberg, Erlangen, Germany
- Deutsches Zentrum Für Immuntherapie DZI, Friedrich-Alexander University Erlangen-Nuernberg, Erlangen, Germany
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Castillo-Azofeifa D, Wald T, Reyes EA, Gallagher A, Schanin J, Vlachos S, Lamarche-Vane N, Bomidi C, Blutt S, Estes MK, Nystul T, Klein OD. A DLG1-ARHGAP31-CDC42 axis is essential for the intestinal stem cell response to fluctuating niche Wnt signaling. Cell Stem Cell 2023; 30:188-206.e6. [PMID: 36640764 PMCID: PMC9922544 DOI: 10.1016/j.stem.2022.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 10/13/2022] [Accepted: 12/12/2022] [Indexed: 01/15/2023]
Abstract
A central factor in the maintenance of tissue integrity is the response of stem cells to variations in the levels of niche signals. In the gut, intestinal stem cells (ISCs) depend on Wnt ligands for self-renewal and proliferation. Transient increases in Wnt signaling promote regeneration after injury or in inflammatory bowel diseases, whereas constitutive activation of this pathway leads to colorectal cancer. Here, we report that Discs large 1 (Dlg1), although dispensable for polarity and cellular turnover during intestinal homeostasis, is required for ISC survival in the context of increased Wnt signaling. RNA sequencing (RNA-seq) and genetic mouse models demonstrated that DLG1 regulates the cellular response to increased canonical Wnt ligands. This occurs via the transcriptional regulation of Arhgap31, a GTPase-activating protein that deactivates CDC42, an effector of the non-canonical Wnt pathway. These findings reveal a DLG1-ARHGAP31-CDC42 axis that is essential for the ISC response to increased niche Wnt signaling.
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Affiliation(s)
- David Castillo-Azofeifa
- Department of Orofacial Sciences and Program in Craniofacial Biology, University of California, San Francisco, San Francisco, CA, USA; Department of Regenerative Medicine, Genentech, Inc., South San Francisco, CA, USA
| | - Tomas Wald
- Department of Orofacial Sciences and Program in Craniofacial Biology, University of California, San Francisco, San Francisco, CA, USA
| | - Efren A Reyes
- Department of Orofacial Sciences and Program in Craniofacial Biology, University of California, San Francisco, San Francisco, CA, USA; Department of Pharmaceutical Chemistry and TETRAD Program, University of California, San Francisco, San Francisco, CA, USA
| | - Aaron Gallagher
- Department of Orofacial Sciences and Program in Craniofacial Biology, University of California, San Francisco, San Francisco, CA, USA
| | - Julia Schanin
- Department of Orofacial Sciences and Program in Craniofacial Biology, University of California, San Francisco, San Francisco, CA, USA
| | - Stephanie Vlachos
- Department of Anatomy, University of California, San Francisco, San Francisco, CA, USA
| | - Nathalie Lamarche-Vane
- Cancer Research Program, Research Institute of the McGill University Health Centre, Montréal, QC, Canada; Department of Anatomy and Cell Biology, McGill University, Montréal, QC, Canada
| | - Carolyn Bomidi
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Sarah Blutt
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Mary K Estes
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, USA
| | - Todd Nystul
- Department of Anatomy, University of California, San Francisco, San Francisco, CA, USA
| | - Ophir D Klein
- Department of Orofacial Sciences and Program in Craniofacial Biology, University of California, San Francisco, San Francisco, CA, USA; Department of Pediatrics and Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA; Department of Pediatrics, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
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Mlih M, Karpac J. Integrin-ECM interactions and membrane-associated Catalase cooperate to promote resilience of the Drosophila intestinal epithelium. PLoS Biol 2022; 20:e3001635. [PMID: 35522719 PMCID: PMC9116668 DOI: 10.1371/journal.pbio.3001635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 05/18/2022] [Accepted: 04/19/2022] [Indexed: 12/04/2022] Open
Abstract
Balancing cellular demise and survival constitutes a key feature of resilience mechanisms that underlie the control of epithelial tissue damage. These resilience mechanisms often limit the burden of adaptive cellular stress responses to internal or external threats. We recently identified Diedel, a secreted protein/cytokine, as a potent antagonist of apoptosis-induced regulated cell death in the Drosophila intestinal midgut epithelium during aging. Here, we show that Diedel is a ligand for RGD-binding Integrins and is thus required for maintaining midgut epithelial cell attachment to the extracellular matrix (ECM)-derived basement membrane. Exploiting this function of Diedel, we uncovered a resilience mechanism of epithelial tissues, mediated by Integrin-ECM interactions, which shapes cell death spreading through the regulation of cell detachment and thus cell survival. Moreover, we found that resilient epithelial cells, enriched for Diedel-Integrin-ECM interactions, are characterized by membrane association of Catalase, thus preserving extracellular reactive oxygen species (ROS) balance to maintain epithelial integrity. Intracellular Catalase can relocalize to the extracellular membrane to limit cell death spreading and repair Integrin-ECM interactions induced by the amplification of extracellular ROS, which is a critical adaptive stress response. Membrane-associated Catalase, synergized with Integrin-ECM interactions, likely constitutes a resilience mechanism that helps balance cellular demise and survival within epithelial tissues.
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Affiliation(s)
- Mohamed Mlih
- Department of Molecular and Cellular Medicine, Texas A&M University, College of Medicine, Bryan, Texas, United States of America
| | - Jason Karpac
- Department of Molecular and Cellular Medicine, Texas A&M University, College of Medicine, Bryan, Texas, United States of America
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Guégan JP, Pollet J, Ginestier C, Charafe-Jauffret E, Peter ME, Legembre P. CD95/Fas suppresses NF-κB activation through recruitment of KPC2 in a CD95L/FasL-independent mechanism. iScience 2021; 24:103538. [PMID: 34917906 PMCID: PMC8666665 DOI: 10.1016/j.isci.2021.103538] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 10/18/2021] [Accepted: 11/25/2021] [Indexed: 12/28/2022] Open
Abstract
CD95 expression is preserved in triple-negative breast cancers (TNBCs), and CD95 loss in these cells triggers the induction of a pro-inflammatory program, promoting the recruitment of cytotoxic NK cells impairing tumor growth. Herein, we identify a novel interaction partner of CD95, Kip1 ubiquitination-promoting complex protein 2 (KPC2), using an unbiased proteomic approach. Independently of CD95L, CD95/KPC2 interaction contributes to the partial degradation of p105 (NF-κB1) and the subsequent generation of p50 homodimers, which transcriptionally represses NF-κB-driven gene expression. Mechanistically, KPC2 interacts with the C-terminal region of CD95 and serves as an adaptor to recruit RelA (p65) and KPC1, which acts as E3 ubiquitin-protein ligase promoting the degradation of p105 into p50. Loss of CD95 in TNBC cells releases KPC2, limiting the formation of the NF-κB inhibitory homodimer complex (p50/p50), promoting NF-κB activation and the production of pro-inflammatory cytokines, which might contribute to remodeling the immune landscape in TNBC cells.
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Affiliation(s)
| | - Justine Pollet
- Technological core facility BISCEm, Université de Limoges, US042 Inserm, UMS 2015 CNRS, Centre hospitalo-universitaire de Limoges, Limoges, France
| | - Christophe Ginestier
- Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Molecular Oncology "Equipe labellisée Ligue Contre le Cancer", Marseille, France
| | - Emmanuelle Charafe-Jauffret
- Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Molecular Oncology "Equipe labellisée Ligue Contre le Cancer", Marseille, France
| | - Marcus E. Peter
- Division Hematology/Oncology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Patrick Legembre
- Contrôle de la Réponse Immune B et lymphoproliférations, CRIBL, Université Limoges, UMR CNRS 7276, INSERM 1262, Limoges, France
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Meng GD, Xu BS. Circular RNA hsa_circ_0001658 Inhibits Intervertebral Disc Degeneration Development by Regulating hsa-miR-181c-5p/FAS. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:7853335. [PMID: 34925543 PMCID: PMC8683186 DOI: 10.1155/2021/7853335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 11/15/2021] [Indexed: 12/29/2022]
Abstract
METHODS We obtained microarray data (GSE116726, GSE67566) from Gene Expression Omnibus database, and differential expression level of ncRNA in nucleus pulposus (NP) tissues of IDD patients was analyzed. The potential circRNA-miRNA-mRNA regulatory network was analyzed by starBase. The effect of the interaction between hsa_circ_0001658, hsa-miR-181c-5p, and FAS on the proliferation and apoptosis of human neural progenitor cells (hNPCs) was studied. RESULTS hsa_circ_0001658 was significantly upregulated (logFC > 2.0 and adj.P.Val < 0.01) in the NP tissues of IDD patients, and hsa-miR-181c-5p expression was downregulated (logFC < -2.0 and adj.P.Val < 0.01). Silencing of hsa-miR-181c-5p or overexpression of hsa_circ_0001658 inhibited the proliferation of hNPCs and promoted their apoptosis. hsa_circ_0001658 acted as a sponge of hsa-miR-181c-5p. hsa-miR-181c-5p downregulated the expression of Fas cell surface death receptor (FAS), promoted the proliferation, and inhibited the apoptosis of hNPCs. hsa_circ_0001658 functioned in hNPCs through targeting hsa-miR-181c-5p/FAS. CONCLUSION Circular RNA hsa_circ_0001658 inhibits IDD development by regulating hsa-miR-181c-5p/FAS. It is expected to be a potential target for the therapy of IDD.
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Affiliation(s)
- Ge-dong Meng
- Tianjin Medical University, Tianjin 300070, China
- Department of Spine Surgery, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010010 Inner Mongolia Autonomous Region, China
| | - Bao-shan Xu
- Department of Minimally Invasive Spine Surgery, Tianjin Hospital, Tianjin University, Tianjin 300211, China
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Abstract
E-cadherin is the main component of epithelial adherens junctions (AJs), which play a crucial role in the maintenance of stable cell-cell adhesion and overall tissue integrity. Down-regulation of E-cadherin expression has been found in many carcinomas, and loss of E-cadherin is generally associated with poor prognosis in patients. During the last decade, however, numerous studies have shown that E-cadherin is essential for several aspects of cancer cell biology that contribute to cancer progression, most importantly, active cell migration. In this review, we summarize the available data about the input of E-cadherin in cancer progression, focusing on the latest advances in the research of the various roles E-cadherin-based AJs play in cancer cell dissemination. The review also touches upon the "cadherin switching" in cancer cells where N- or P-cadherin replace or are co-expressed with E-cadherin and its influence on the migratory properties of cancer cells.
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Affiliation(s)
- Svetlana N Rubtsova
- N.N. Blokhin National Medical Research Center of Oncology, Institute of Carcinogenesis, Moscow, Russia
| | - Irina Y Zhitnyak
- N.N. Blokhin National Medical Research Center of Oncology, Institute of Carcinogenesis, Moscow, Russia
| | - Natalya A Gloushankova
- N.N. Blokhin National Medical Research Center of Oncology, Institute of Carcinogenesis, Moscow, Russia
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Daulat AM, Audebert S, Wagner M, Camoin L, Borg JP. Identification of PDZ Interactions by Affinity Purification and Mass Spectrometry Analysis. Methods Mol Biol 2021; 2256:17-40. [PMID: 34014514 DOI: 10.1007/978-1-0716-1166-1_2] [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] [Indexed: 06/12/2023]
Abstract
Identification of protein networks becomes indispensable for determining the function of a given protein of interest. Some proteins harbor a PDZ binding motif (PDZBM) located at the carboxy-terminus end. This motif is necessary to recruit PDZ domain proteins which are involved in signaling, trafficking, and maintenance of cell architecture. In the present chapter, we present two complementary approaches (immunopurification and peptide-based purification procedures) followed by mass spectrometry analysis to identify PDZ domain proteins associated to a given protein of interest. As proof of example, we focus our attention on TANC1 which is a scaffold protein harboring a PDZBM at its carboxy-terminus. Using these two approaches, we identified several PDZ domain containing proteins. Some of them were found with both approaches, and some were specifically identified using peptide-based purification procedure. This exemplifies advantages and differences of both strategies to identify PDZ interactions.
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Affiliation(s)
- Avais M Daulat
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Equipe labellisée Ligue 'Cell polarity, cell signaling and cancer', Marseille, France
| | - Stéphane Audebert
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille Protéomique, Marseille, France
| | - Mônica Wagner
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille Protéomique, Marseille, France
| | - Luc Camoin
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille Protéomique, Marseille, France
| | - Jean-Paul Borg
- Institut Universitaire de France (IUF), Paris, France.
- Centre de Recherche en Cancérologie de Marseille, Aix-Marseille University, Inserm, CNRS, Institut Paoli-Calmettes, Marseille, France.
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Dual Role of the PTPN13 Tyrosine Phosphatase in Cancer. Biomolecules 2020; 10:biom10121659. [PMID: 33322542 PMCID: PMC7763032 DOI: 10.3390/biom10121659] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 02/08/2023] Open
Abstract
In this review article, we present the current knowledge on PTPN13, a class I non-receptor protein tyrosine phosphatase identified in 1994. We focus particularly on its role in cancer, where PTPN13 acts as an oncogenic protein and also a tumor suppressor. To try to understand these apparent contradictory functions, we discuss PTPN13 implication in the FAS and oncogenic tyrosine kinase signaling pathways and in the associated biological activities, as well as its post-transcriptional and epigenetic regulation. Then, we describe PTPN13 clinical significance as a prognostic marker in different cancer types and its impact on anti-cancer treatment sensitivity. Finally, we present future research axes following recent findings on its role in cell junction regulation that implicate PTPN13 in cell death and cell migration, two major hallmarks of tumor formation and progression.
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11
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Levoin N, Jean M, Legembre P. CD95 Structure, Aggregation and Cell Signaling. Front Cell Dev Biol 2020; 8:314. [PMID: 32432115 PMCID: PMC7214685 DOI: 10.3389/fcell.2020.00314] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 04/08/2020] [Indexed: 01/16/2023] Open
Abstract
CD95 is a pre-ligand-associated transmembrane (TM) receptor. The interaction with its ligand CD95L brings to a next level its aggregation and triggers different signaling pathways, leading to cell motility, differentiation or cell death. This diversity of biological responses associated with a unique receptor devoid of enzymatic property raises the question of whether different ligands exist, or whether the fine-tuned control of CD95 aggregation and conformation, its distribution within certain plasma membrane sub-domains or the pattern of post-translational modifications account for this such broad-range of cell signaling. Herein, we review how the different domains of CD95 and their post-translational modifications or the different forms of CD95L can participate in the receptor aggregation and induction of cell signaling. Understanding how CD95 response goes from cell death to cell proliferation, differentiation and motility is a prerequisite to reveal novel therapeutic options to treat chronic inflammatory disorders and cancers.
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Affiliation(s)
| | - Mickael Jean
- Univ Rennes, CNRS, ISCR-UMR 6226, Rennes, France
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12
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Venhuizen JH, Jacobs FJ, Span PN, Zegers MM. P120 and E-cadherin: Double-edged swords in tumor metastasis. Semin Cancer Biol 2020; 60:107-120. [DOI: 10.1016/j.semcancer.2019.07.020] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 07/26/2019] [Indexed: 12/11/2022]
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13
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Hamyeh M, Bernex F, Larive RM, Naldi A, Urbach S, Simony-Lafontaine J, Puech C, Bakhache W, Solassol J, Coopman PJ, Hendriks WJ, Freiss G. PTPN13 induces cell junction stabilization and inhibits mammary tumor invasiveness. Am J Cancer Res 2020; 10:1016-1032. [PMID: 31938048 PMCID: PMC6956795 DOI: 10.7150/thno.38537] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 11/03/2019] [Indexed: 02/06/2023] Open
Abstract
Clinical data suggest that the protein tyrosine phosphatase PTPN13 exerts an anti-oncogenic effect. Its exact role in tumorigenesis remains, however, unclear due to its negative impact on FAS receptor-induced apoptosis. Methods: We crossed transgenic mice deleted for PTPN13 phosphatase activity with mice that overexpress human HER2 to assess the exact role of PTPN13 in tumor development and aggressiveness. To determine the molecular mechanism underlying the PTPN13 tumor suppressor activity we developed isogenic clones of the aggressive human breast cancer cell line MDA-MB-231 overexpressing either wild type or a catalytically-inactive mutant PTPN13 and subjected these to phosphoproteomic and gene ontology analyses. We investigated the PTPN13 consequences on cell aggressiveness using wound healing and Boyden chamber assays, on intercellular adhesion using videomicroscopy, cell aggregation assay and immunofluorescence. Results: The development, growth and invasiveness of breast tumors were strongly increased by deletion of the PTPN13 phosphatase activity in transgenic mice. We observed that PTPN13 phosphatase activity is required to inhibit cell motility and invasion in the MDA-MB-231 cell line overexpressing PTPN13. In vivo, the negative PTPN13 effect on tumor invasiveness was associated with a mesenchymal-to-epithelial transition phenotype in athymic mice xenografted with PTPN13-overexpressing MDA-MB-231 cells, as well as in HER2-overexpressing mice with wild type PTPN13, compared to HER2-overexpressing mice that lack PTPN13 phosphatase activity. Phosphoproteomic and gene ontology analyses indicated a role of PTPN13 in the regulation of intercellular junction-related proteins. Finally, protein localization studies in MDA-MB-231 cells and HER2-overexpressing mice tumors confirmed that PTPN13 stabilizes intercellular adhesion and promotes desmosome formation. Conclusions: These data provide the first evidence for the negative role of PTPN13 in breast tumor invasiveness and highlight its involvement in cell junction stabilization.
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Gagnoux-Palacios L, Hueber AO. [Cell death for maintaining epithelial homeostasis]. Med Sci (Paris) 2019; 35:830-833. [PMID: 31845871 DOI: 10.1051/medsci/2019164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Laurent Gagnoux-Palacios
- Université Côte d'Azur, Institut de biologie Valrose, CNRS, Inserm, Parc Valrose, Bâtiment des sciences naturelles, 28 avenue de Valrose, 06108 Nice Cedex 2, France
| | - Anne-Odile Hueber
- Université Côte d'Azur, Institut de biologie Valrose, CNRS, Inserm, Parc Valrose, Bâtiment des sciences naturelles, 28 avenue de Valrose, 06108 Nice Cedex 2, France
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15
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Gülcüler Balta GS, Monzel C, Kleber S, Beaudouin J, Balta E, Kaindl T, Chen S, Gao L, Thiemann M, Wirtz CR, Samstag Y, Tanaka M, Martin-Villalba A. 3D Cellular Architecture Modulates Tyrosine Kinase Activity, Thereby Switching CD95-Mediated Apoptosis to Survival. Cell Rep 2019; 29:2295-2306.e6. [DOI: 10.1016/j.celrep.2019.10.054] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 08/14/2019] [Accepted: 10/11/2019] [Indexed: 12/13/2022] Open
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Guégan JP, Ginestier C, Charafe-Jauffret E, Ducret T, Quignard JF, Vacher P, Legembre P. CD95/Fas and metastatic disease: What does not kill you makes you stronger. Semin Cancer Biol 2019; 60:121-131. [PMID: 31176682 DOI: 10.1016/j.semcancer.2019.06.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/05/2019] [Accepted: 06/05/2019] [Indexed: 12/14/2022]
Abstract
CD95 (also known as Fas) is the prototype of death receptors; however, evidence suggests that this receptor mainly implements non-apoptotic signaling pathways such as NF-κB, MAPK, and PI3K that are involved in cell migration, differentiation, survival, and cytokine secretion. At least two different forms of CD95 L exist. The multi-aggregated transmembrane ligand (m-CD95 L) is cleaved by metalloproteases to release a homotrimeric soluble ligand (s-CD95 L). Unlike m-CD95 L, the interaction between s-CD95 L and its receptor CD95 fails to trigger apoptosis, but instead promotes calcium-dependent cell migration, which contributes to the accumulation of inflammatory Th17 cells in damaged organs of lupus patients and favors cancer cell invasiveness. Novel inhibitors targeting the pro-inflammatory roles of CD95/CD95 L may provide attractive therapeutic options for patients with chronic inflammatory disorders or cancer. This review discusses the roles of the CD95/CD95 L pair in cell migration and metastasis.
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Affiliation(s)
- Jean Philippe Guégan
- CLCC Eugène Marquis, Équipe Ligue Contre Le Cancer, Rennes, France; Université Rennes, INSERM U1242, Rennes, France
| | - Christophe Ginestier
- Aix-Marseille Univ, Inserm, CNRS, Institut Paoli-Calmettes, CRCM, Epithelial Stem Cells and Cancer Lab, Marseille, France
| | - Emmanuelle Charafe-Jauffret
- Aix-Marseille Univ, Inserm, CNRS, Institut Paoli-Calmettes, CRCM, Epithelial Stem Cells and Cancer Lab, Marseille, France
| | - Thomas Ducret
- Université de Bordeaux, Bordeaux, France; Centre de Recherche Cardio Thoracique de Bordeaux, INSERM U1045, Bordeaux, France
| | - Jean-François Quignard
- Université de Bordeaux, Bordeaux, France; Centre de Recherche Cardio Thoracique de Bordeaux, INSERM U1045, Bordeaux, France
| | - Pierre Vacher
- Université de Bordeaux, Bordeaux, France; INSERM U1218, Bordeaux, France
| | - Patrick Legembre
- CLCC Eugène Marquis, Équipe Ligue Contre Le Cancer, Rennes, France; Université Rennes, INSERM U1242, Rennes, France.
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Daulagala AC, Bridges MC, Kourtidis A. E-cadherin Beyond Structure: A Signaling Hub in Colon Homeostasis and Disease. Int J Mol Sci 2019; 20:E2756. [PMID: 31195621 PMCID: PMC6600153 DOI: 10.3390/ijms20112756] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 05/27/2019] [Accepted: 06/01/2019] [Indexed: 12/17/2022] Open
Abstract
E-cadherin is the core component of epithelial adherens junctions, essential for tissue development, differentiation, and maintenance. It is also fundamental for tissue barrier formation, a critical function of epithelial tissues. The colon or large intestine is lined by an epithelial monolayer that encompasses an E-cadherin-dependent barrier, critical for the homeostasis of the organ. Compromised barriers of the colonic epithelium lead to inflammation, fibrosis, and are commonly observed in colorectal cancer. In addition to its architectural role, E-cadherin is also considered a tumor suppressor in the colon, primarily a result of its opposing function to Wnt signaling, the predominant driver of colon tumorigenesis. Beyond these well-established traditional roles, several studies have portrayed an evolving role of E-cadherin as a signaling epicenter that regulates cell behavior in response to intra- and extra-cellular cues. Intriguingly, these recent findings also reveal tumor-promoting functions of E-cadherin in colon tumorigenesis and new interacting partners, opening future avenues of investigation. In this Review, we focus on these emerging aspects of E-cadherin signaling, and we discuss their implications in colon biology and disease.
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Affiliation(s)
- Amanda C Daulagala
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC 29425, USA.
| | - Mary Catherine Bridges
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC 29425, USA.
| | - Antonis Kourtidis
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC 29425, USA.
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Rossin A, Miloro G, Hueber AO. TRAIL and FasL Functions in Cancer and Autoimmune Diseases: Towards an Increasing Complexity. Cancers (Basel) 2019; 11:cancers11050639. [PMID: 31072029 PMCID: PMC6563024 DOI: 10.3390/cancers11050639] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 04/26/2019] [Accepted: 04/28/2019] [Indexed: 12/31/2022] Open
Abstract
Tumor Necrosis Factor-Related Apoptosis Inducing Ligand (TRAIL/TNFSF10) and Fas Ligand (FasL/TNFSF6), two major cytokines of the TNF (Tumor Necrosis Factor) superfamily, exert their main functions from the immune system compartment. Mice model studies revealed that TRAIL and FasL-mediated signalling both control the homeostasis of the immune cells, mainly from the lymphoid lineage, and function on cytotoxic cells as effector proteins to eliminate the compromised cells. The first clues in the physiological functions of TRAIL arose from the analysis of TRAIL deficient mice, which, even though they are viable and fertile, are prone to cancer and autoimmune diseases development, revealing TRAIL as an important safeguard against autoimmunity and cancer. The naturally occurring gld (generalized lymphoproliferative disease) and lpr (lymphoproliferation) mutant mice develop lymphadenopathy and lupus-like autoimmune disease. The discovery that they are mutated in the fasl and the fas receptor gene, respectively, demonstrates the critical role of the FasL/Fas system in lymphocyte homeostasis and autoimmunity. This review summarizes the state of current knowledge regarding the key death and non-death immune functions that TRAIL and FasL play in the initiation and progression of cancer and autoimmune diseases.
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Affiliation(s)
- Aurélie Rossin
- Université Côte d'Azur, CNRS, Inserm, iBV, 06108 Nice, France.
| | - Giorgia Miloro
- Université Côte d'Azur, CNRS, Inserm, iBV, 06108 Nice, France.
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