1
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Singh K, Showalter CA, Manring HR, Haque SJ, Chakravarti A. "Oh, Dear We Are in Tribble": An Overview of the Oncogenic Functions of Tribbles 1. Cancers (Basel) 2024; 16:1889. [PMID: 38791967 PMCID: PMC11120034 DOI: 10.3390/cancers16101889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/11/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Pseudokinases are catalytically inactive proteins in the human genome that lack the ability to transfer phosphate from ATP to their substrates. The Tribbles family of pseudokinases contains three members: Tribbles 1, 2, and 3. Tribbles 1 has recently gained importance because of its involvement in various diseases, including cancer. It acts as a scaffolding protein that brings about the degradation of its substrate proteins, such as C/EBPα/β, MLXIPL, and RAR/RXRα, among others, via the ubiquitin proteasome system. It also serves as an adapter protein, which sequesters different protein molecules and activates their downstream signaling, leading to processes, such as cell survival, cell proliferation, and lipid metabolism. It has been implicated in cancers such as AML, prostate cancer, breast cancer, CRC, HCC, and glioma, where it activates oncogenic signaling pathways such as PI3K-AKT and MAPK and inhibits the anti-tumor function of p53. TRIB1 also causes treatment resistance in cancers such as NSCLC, breast cancer, glioma, and promyelocytic leukemia. All these effects make TRIB1 a potential drug target. However, the lack of a catalytic domain renders TRIB1 "undruggable", but knowledge about its structure, conformational changes during substrate binding, and substrate binding sites provides an opportunity to design small-molecule inhibitors against specific TRIB1 interactions.
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Affiliation(s)
| | | | | | | | - Arnab Chakravarti
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
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2
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Singh K, Han C, Fleming JL, Becker AP, McElroy J, Cui T, Johnson B, Kumar A, Sebastian E, Showalter CA, Schrock MS, Summers MK, Becker V, Tong ZY, Meng X, Manring HR, Venere M, Bell EH, Robe PA, Grosu AL, Haque SJ, Chakravarti A. TRIB1 confers therapeutic resistance in GBM cells by activating the ERK and Akt pathways. Sci Rep 2023; 13:12424. [PMID: 37528172 PMCID: PMC10394028 DOI: 10.1038/s41598-023-32983-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 04/05/2023] [Indexed: 08/03/2023] Open
Abstract
GBM (Glioblastoma) is the most lethal CNS (Central nervous system) tumor in adults, which inevitably develops resistance to standard treatments leading to recurrence and mortality. TRIB1 is a serine/threonine pseudokinase which functions as a scaffold platform that initiates degradation of its substrates like C/EBPα through the ubiquitin proteasome system and also activates MEK and Akt signaling. We found that increased TRIB1 gene expression associated with worse overall survival of GBM patients across multiple cohorts. Importantly, overexpression of TRIB1 decreased RT/TMZ (radiation therapy/temozolomide)-induced apoptosis in patient derived GBM cell lines in vitro. TRIB1 directly bound to MEK and Akt and increased ERK and Akt phosphorylation/activation. We also found that TRIB1 protein expression was maximal during G2/M transition of cell cycle in GBM cells. Furthermore, TRIB1 bound directly to HDAC1 and p53. Importantly, mice bearing TRIB1 overexpressing tumors had worse overall survival. Collectively, these data suggest that TRIB1 induces resistance of GBM cells to RT/TMZ treatments by activating the cell proliferation and survival pathways thus providing an opportunity for developing new targeted therapeutics.
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Affiliation(s)
- Karnika Singh
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Chunhua Han
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Jessica L Fleming
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Aline P Becker
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Joseph McElroy
- Department of Biomedical Informatics, Center for Biostatistics, The Ohio State University, Columbus, OH, 43210, USA
| | - Tiantian Cui
- Department of Radiation Oncology, City of Hope, Duarte, CA, 91010, USA
| | - Benjamin Johnson
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Ashok Kumar
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Ebin Sebastian
- Corewell Health William Beaumont University Hospital, Royal Oak, MI, 48073, USA
| | - Christian A Showalter
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Morgan S Schrock
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Matthew K Summers
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Valesio Becker
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Zhen-Yue Tong
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Xiaomei Meng
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Heather R Manring
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Monica Venere
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Erica H Bell
- Neroscience Research Institute/Department of Neurology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Pierre A Robe
- Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584 CG, Utrecht, The Netherlands
| | - A L Grosu
- Freiburg University, 79098, Freiburg, Germany
| | - S Jaharul Haque
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - Arnab Chakravarti
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA.
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3
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Icariin represses the inflammatory responses and survival of rheumatoid arthritis fibroblast-like synoviocytes by regulating the TRIB1/TLR2/NF-kB pathway. Int Immunopharmacol 2022; 110:108991. [DOI: 10.1016/j.intimp.2022.108991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 06/06/2022] [Accepted: 06/20/2022] [Indexed: 11/19/2022]
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4
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Danger R, Feseha Y, Brouard S. The Pseudokinase TRIB1 in Immune Cells and Associated Disorders. Cancers (Basel) 2022; 14:cancers14041011. [PMID: 35205759 PMCID: PMC8869936 DOI: 10.3390/cancers14041011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/07/2022] [Accepted: 02/14/2022] [Indexed: 12/10/2022] Open
Abstract
Simple Summary TRIB1 is at the center of major cell signaling pathways. In this review, we describe its role in immune cells and highlight TRIB1 interacting partners which suggests cell-specific functions and that TRIB1 is involved in cellular homeostasis and also in different cancers and immune-related disorders. Abstract Research advances in Tribbles homolog (TRIB) genes have established the consensus that this protein family plays roles in diverse biological conditions and regulates intracellular signaling networks and several human diseases. In this review, we focus on one member of the family, TRIB1, and its role at the crossroads of immune signaling. TRIB1 directly interacts with transcription factors such as FOXP3 and C/EBPα, with several signaling molecules such as MEK1 and MALT1 and directly acts on key cell signaling pathways such as the MAPK and NF-κB pathways. Altogether, these interactions emphasize that TRIB1 is at the center of major cell signaling pathways while TRIB1 has cell-specific roles, potentially depending on the expressing cells and binding partners. In this review, we describe its roles in immune cells and highlight the interacting partners explaining these functions which suggests TRIB1 as a precise mediator of cellular homeostasis as well as in different cancers and immune-related disorders.
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Affiliation(s)
- Richard Danger
- CHU Nantes, Nantes Université, INSERM, Center for Research in Transplantation and Translational Immunology (CR2TI), UMR 1064, F-44000 Nantes, France; (R.D.); (Y.F.)
| | - Yodit Feseha
- CHU Nantes, Nantes Université, INSERM, Center for Research in Transplantation and Translational Immunology (CR2TI), UMR 1064, F-44000 Nantes, France; (R.D.); (Y.F.)
| | - Sophie Brouard
- CHU Nantes, Nantes Université, INSERM, Center for Research in Transplantation and Translational Immunology (CR2TI), UMR 1064, F-44000 Nantes, France; (R.D.); (Y.F.)
- LabEx IGO “Immunotherapy, Graft, Oncology”, F-44000 Nantes, France
- Correspondence: ; Tel.: +33-240-087-842
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5
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Zhang X, Zhang B, Zhang C, Sun G, Sun X. Current Progress in Delineating the Roles of Pseudokinase TRIB1 in Controlling Human Diseases. J Cancer 2021; 12:6012-6020. [PMID: 34539875 PMCID: PMC8425202 DOI: 10.7150/jca.51627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 08/10/2021] [Indexed: 12/15/2022] Open
Abstract
Tribbles homolog 1 (TRIB1) is a member of the tribbles family of pseudoprotein kinases and is widely expressed in numerous tissues, such as bone marrow, skeletal muscle, liver, heart, and adipose tissue. It is closely associated with acute myeloid leukemia, prostate cancer, and tumor drug resistance, and can interfere with the hematopoietic stem cell cycle, promote tumor cell proliferation, and inhibit apoptosis. Recent studies have shown that TRIB1 can regulate acute and chronic inflammation by affecting the secretion of inflammatory factors, which is closely related to the occurrence of hyperlipidemia and cardiovascular diseases. Given the important biological functions of TRIB1, the reviews published till now are not sufficiently comprehensive. Therefore, this paper reviews the progress in TRIB1 research aimed at exploring its roles in cancer, hyperlipidemia, and cardiovascular disease, and providing a theoretical basis for further studies on the biological roles of TRIB1.
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Affiliation(s)
- Xuelian Zhang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing 100193, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing 100193, China.,Key Laboratory of efficacy evaluation of Chinese Medicine against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing 100193, China
| | - Bin Zhang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing 100193, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing 100193, China.,Key Laboratory of efficacy evaluation of Chinese Medicine against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing 100193, China
| | - Chenyang Zhang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing 100193, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing 100193, China.,Key Laboratory of efficacy evaluation of Chinese Medicine against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing 100193, China
| | - Guibo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing 100193, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing 100193, China.,Key Laboratory of efficacy evaluation of Chinese Medicine against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing 100193, China
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China.,Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing 100193, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing 100193, China.,Key Laboratory of efficacy evaluation of Chinese Medicine against Glyeolipid Metabolism Disorder Disease, State Administration of Traditional Chinese Medicine, Beijing 100193, China
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6
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Ruiz-Cantos M, Hutchison CE, Shoulders CC. Musings from the Tribbles Research and Innovation Network. Cancers (Basel) 2021; 13:cancers13184517. [PMID: 34572744 PMCID: PMC8467127 DOI: 10.3390/cancers13184517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 09/02/2021] [Accepted: 09/04/2021] [Indexed: 11/16/2022] Open
Abstract
This commentary integrates historical and modern findings that underpin our understanding of the cell-specific functions of the Tribbles (TRIB) proteins that bear on tumorigenesis. We touch on the initial discovery of roles played by mammalian TRIB proteins in a diverse range of cell-types and pathologies, for example, TRIB1 in regulatory T-cells, TRIB2 in acute myeloid leukaemia and TRIB3 in gliomas; the origins and diversity of TRIB1 transcripts; microRNA-mediated (miRNA) regulation of TRIB1 transcript decay and translation; the substantial conformational changes that ensue on binding of TRIB1 to the transcription factor C/EBPα; and the unique pocket formed by TRIB1 to sequester its C-terminal motif bearing a binding site for the E3 ubiquitin ligase COP1. Unashamedly, the narrative is relayed through the perspective of the Tribbles Research and Innovation Network, and its establishment, progress and future ambitions: the growth of TRIB and COP1 research to hasten discovery of their cell-specific contributions to health and obesity-related cancers.
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7
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Highlights of the 2nd International Symposium on Tribbles and Diseases: tribbles tremble in therapeutics for immunity, metabolism, fundamental cell biology and cancer. Acta Pharm Sin B 2019. [DOI: 10.1016/j.apsb.2018.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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8
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Salomé M, Hopcroft L, Keeshan K. Inverse and correlative relationships between TRIBBLES genes indicate non-redundant functions during normal and malignant hemopoiesis. Exp Hematol 2018; 66:63-78.e13. [PMID: 30031847 DOI: 10.1016/j.exphem.2018.07.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 07/11/2018] [Accepted: 07/12/2018] [Indexed: 01/31/2023]
Abstract
TRIBBLES pseudokinases (TRIB1, TRIB2, and TRIB3) are important regulators of normal and malignant hemopoiesis. The relative abundance of each TRIBBLES family member may be important for distinct oncogenic or tumor suppressor functions. We map the expression profiles of TRIB1, TRIB2, and TRIB3 in human and murine hemopoietic stem, progenitor and mature cells, and in human leukemia datasets. Our data show that TRIB1-TRIB2 have an inverse expression relationship in normal hemopoiesis, whereas TRIB1-TRIB3 have a positive correlation. We reveal that TRIB3 expression is high in the dormant hemopoietic stem cell (HSC) population, implicating a novel role for TRIB3 in stem cell quiescence. These analyses support a non-redundant role for each TRIBBLES member during normal hemopoietic differentiation. We show that TRIB1-TRIB2 display a significant negative correlation in myelodysplastic syndrome and acute myeloid leukemia (AML) subtypes, but not in acute lymphoid leukemia. This inverse relationship is specific to certain subtypes of AML. A positive correlation exists in different leukemia subtypes between TRIB1-TRIB3. The TRIB1-TRIB2 and TRIB1-TRIB3 correlations are consistent with a correlative relationship with C/EBP transcription factor family members. Our results have implications for the development of strategies to therapeutically target these genes in different types of leukemia.
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Affiliation(s)
- Mara Salomé
- Paul O'Gorman Leukaemia Research Centre, Institute of Cancer Sciences, University of Glasgow, Scotland, UK
| | - Lisa Hopcroft
- Paul O'Gorman Leukaemia Research Centre, Institute of Cancer Sciences, University of Glasgow, Scotland, UK
| | - Karen Keeshan
- Paul O'Gorman Leukaemia Research Centre, Institute of Cancer Sciences, University of Glasgow, Scotland, UK.
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9
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Simoni L, Delgado V, Ruer-Laventie J, Bouis D, Soley A, Heyer V, Robert I, Gies V, Martin T, Korganow AS, Reina-San-Martin B, Soulas-Sprauel P. Trib1 Is Overexpressed in Systemic Lupus Erythematosus, While It Regulates Immunoglobulin Production in Murine B Cells. Front Immunol 2018; 9:373. [PMID: 29599769 PMCID: PMC5862796 DOI: 10.3389/fimmu.2018.00373] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 02/09/2018] [Indexed: 01/28/2023] Open
Abstract
Systemic lupus erythematosus (SLE) is a severe and heterogeneous autoimmune disease
with a complex genetic etiology, characterized by the production of various
pathogenic autoantibodies, which participate in end-organ damages. The majority of
human SLE occurs in adults as a polygenic disease, and clinical flares interspersed
with silent phases of various lengths characterize the usual evolution of the disease
in time. Trying to understand the mechanism of the different phenotypic traits of the
disease, and considering the central role of B cells in SLE, we previously performed
a detailed wide analysis of gene expression variation in B cells from quiescent SLE
patients. This analysis pointed out an overexpression of TRIB1.
TRIB1 is a pseudokinase that has been implicated in the development of leukemia and
also metabolic disorders. It is hypothesized that Trib1 plays an adapter or scaffold
function in signaling pathways, notably in MAPK pathways. Therefore, we planned to
understand the functional significance of TRIB1 overexpression in B
cells in SLE. We produced a new knock-in model with B-cell-specific overexpression of
Trib1. We showed that overexpression of Trib1
specifically in B cells does not impact B cell development nor induce any development
of SLE symptoms in the mice. By contrast, Trib1 has a negative regulatory function on
the production of immunoglobulins, notably IgG1, but also on the production of
autoantibodies in an induced model. We observed a decrease of Erk activation in
BCR-stimulated Trib1 overexpressing B cells. Finally, we searched
for Trib1 partners in B cells by proteomic analysis in order to explore the
regulatory function of Trib1 in B cells. Interestingly, we find an interaction
between Trib1 and CD72, a negative regulator of B cells whose deficiency in mice
leads to the development of autoimmunity. In conclusion, the overexpression of
Trib1 could be one of the molecular pathways implicated in the
negative regulation of B cells during SLE.
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Affiliation(s)
- Léa Simoni
- CNRS UPR 3572 "Immunopathology and Therapeutic Chemistry"/Laboratory of Excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France
| | - Virginia Delgado
- CNRS UPR 3572 "Immunopathology and Therapeutic Chemistry"/Laboratory of Excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France
| | - Julie Ruer-Laventie
- CNRS UPR 3572 "Immunopathology and Therapeutic Chemistry"/Laboratory of Excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France
| | - Delphine Bouis
- CNRS UPR 3572 "Immunopathology and Therapeutic Chemistry"/Laboratory of Excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France
| | - Anne Soley
- CNRS UPR 3572 "Immunopathology and Therapeutic Chemistry"/Laboratory of Excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France.,UFR Médecine, Université de Strasbourg, Strasbourg, France
| | - Vincent Heyer
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch, France
| | - Isabelle Robert
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), U964, Illkirch, France.,Centre National de la Recherche Scientifique (CNRS), UMR7104, Illkirch, France.,Université de Strasbourg, Illkirch, France
| | - Vincent Gies
- CNRS UPR 3572 "Immunopathology and Therapeutic Chemistry"/Laboratory of Excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France.,UFR Médecine, Université de Strasbourg, Strasbourg, France.,Department of Clinical Immunology and Internal Medicine, National Reference Center for Autoimmune Diseases, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Thierry Martin
- CNRS UPR 3572 "Immunopathology and Therapeutic Chemistry"/Laboratory of Excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France.,UFR Médecine, Université de Strasbourg, Strasbourg, France.,Department of Clinical Immunology and Internal Medicine, National Reference Center for Autoimmune Diseases, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Anne-Sophie Korganow
- CNRS UPR 3572 "Immunopathology and Therapeutic Chemistry"/Laboratory of Excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France.,UFR Médecine, Université de Strasbourg, Strasbourg, France.,Department of Clinical Immunology and Internal Medicine, National Reference Center for Autoimmune Diseases, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Bernardo Reina-San-Martin
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Illkirch, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), U964, Illkirch, France.,Centre National de la Recherche Scientifique (CNRS), UMR7104, Illkirch, France.,Université de Strasbourg, Illkirch, France
| | - Pauline Soulas-Sprauel
- CNRS UPR 3572 "Immunopathology and Therapeutic Chemistry"/Laboratory of Excellence Medalis, Institute of Molecular and Cellular Biology (IBMC), Strasbourg, France.,UFR Médecine, Université de Strasbourg, Strasbourg, France.,Department of Clinical Immunology and Internal Medicine, National Reference Center for Autoimmune Diseases, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.,UFR Sciences pharmaceutiques, Université de Strasbourg, Illkirch-Graffenstaden, France
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TRIB2 confers resistance to anti-cancer therapy by activating the serine/threonine protein kinase AKT. Nat Commun 2017; 8:14687. [PMID: 28276427 PMCID: PMC5347136 DOI: 10.1038/ncomms14687] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 01/23/2017] [Indexed: 02/06/2023] Open
Abstract
Intrinsic and acquired resistance to chemotherapy is the fundamental reason for treatment failure for many cancer patients. The identification of molecular mechanisms involved in drug resistance or sensitization is imperative. Here we report that tribbles homologue 2 (TRIB2) ablates forkhead box O activation and disrupts the p53/MDM2 regulatory axis, conferring resistance to various chemotherapeutics. TRIB2 suppression is exerted via direct interaction with AKT a key signalling protein in cell proliferation, survival and metabolism pathways. Ectopic or intrinsic high expression of TRIB2 induces drug resistance by promoting phospho-AKT (at Ser473) via its COP1 domain. TRIB2 expression is significantly increased in tumour tissues from patients correlating with an increased phosphorylation of AKT, FOXO3a, MDM2 and an impaired therapeutic response. This culminates in an extremely poor clinical outcome. Our study reveals a novel regulatory mechanism underlying drug resistance and suggests that TRIB2 functions as a regulatory component of the PI3K network, activating AKT in cancer cells.
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11
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Rattazzi L, Piras G, Brod S, Smith K, Ono M, D'Acquisto F. Impact of Enriched Environment on Murine T Cell Differentiation and Gene Expression Profile. Front Immunol 2016; 7:381. [PMID: 27746779 PMCID: PMC5042968 DOI: 10.3389/fimmu.2016.00381] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 09/12/2016] [Indexed: 12/11/2022] Open
Abstract
T cells are known to be plastic and to change their phenotype according to the cellular and biochemical milieu they are embedded in. In this study, we transposed this concept at a macroscopic level assessing whether changes in the environmental housing conditions of C57/BL6 mice would influence the phenotype and function of T cells. Our study shows that exposure to 2 weeks in an enriched environment (EE) does not impact the T cell repertoire in vivo and causes no changes in the early TCR-driven activation events of these cells. Surprisingly, however, T cells from enriched mice showed a unique T helper effector cell phenotype upon differentiation in vitro. This was featured by a significant reduction in their ability to produce IFN-γ and by an increased release of IL-10 and IL-17. Microarray analysis of these cells also revealed a unique gene fingerprint with key signaling pathways involved in autoimmunity being modulated. Together, our results provide first evidence for a specific effect of EE on T cell differentiation and its associated changes in gene expression profile. In addition, our study sheds new light on the possible mechanisms by which changes in environmental factors can significantly influence the immune response of the host and favor the resolution of the inflammatory response.
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Affiliation(s)
- Lorenza Rattazzi
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London , London , UK
| | - Giuseppa Piras
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London , London , UK
| | - Samuel Brod
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London , London , UK
| | - Koval Smith
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London , London , UK
| | - Masahiro Ono
- Department of Life Science, Faculty of Natural Science, Imperial College of Science, Technology and Medicine , London , UK
| | - Fulvio D'Acquisto
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London , London , UK
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Abstract
The pseudo-kinase family of tribbles (TRIB) proteins has been linked to a variety of cell signalling pathways and appears to have functionally divergent roles with respect to intracellular protein degradation and the ability to regulate signal transduction pathways. In the arthritides, inflammation and a wide variety of pro-inflammatory pathways have been implicated to drive the cartilage destruction and consequent disability associated with both rheumatoid arthritis (RA) and osteoarthritis (OA). Despite burgeoning evidence linking the TRIB to inflammation-related pathologies such as diabetes, multiple sclerosis and cancer, very little is known about their roles in arthritis. The present review discusses current knowledge of the impact of TRIB on pro-inflammatory cellular mechanisms and pathways known to be important in the pathogenesis of RA and OA.
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Abstract
The role of regulatory T-cells (Tregs) is crucial to maintain immune homoeostasis by controlling peripheral tolerance. A better understanding in the molecular mechanisms involved in the biology of these Tregs could improve their expansion and selection to treat immune-related diseases, achieve immunosuppression-free organ transplantation and to specifically target them in cancer. We reported on the overexpression of tribbles-1 (TRIB1) in Tregs compared with their counterpart naive T-cells and that TRIB1 interacts with the master molecule of Tregs, forkhead box P3 (FOXP3), a transcription factor essential for Treg suppressive activity. We demonstrated that these two molecules interact together in the nucleus of Tregs and TRIB1 overexpression is associated with a decrease in their proliferative capacities. Since TRIB1 was reported to be overexpressed in the blood of renal transplanted patients with chronic antibody-mediated rejection (CAMR), altogether, these results suggest TRIB1 could be linked to the decrease proportion of Tregs in patients exhibiting CAMR and a key player in Tregs through its FOXP3 interaction. In addition, yeast two-hybrid screening experiments highlighted that TRIB1 potentially interacts with molecules playing roles in intracellular events following T-cell activation and particularly cluster of differentiation (CD)4(+) T-cells. This suggests still non explored potential links between TRIB1 in Tregs. Our goal is thus to decipher the role of TRIB1 in the Treg biology, notably in pathways known to involved its partner and main transcriptional factor of Tregs, FOXP3 and to determine the role of TRIB1 in immune pathologies.
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Miyajima C, Itoh Y, Inoue Y, Hayashi H. Positive Regulation of Interleukin-2 Expression by a Pseudokinase, Tribbles 1, in Activated T Cells. Biol Pharm Bull 2016; 38:1126-33. [PMID: 26235576 DOI: 10.1248/bpb.b15-00002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Tribbles 1 (TRB1), a member of the Tribbles family, is a pseudokinase that is conserved among species and implicated in various human diseases including leukemia, cardiovascular diseases, and metabolic disorders. However, the role of TRB1 in the immune response is not understood. To evaluate this role, we examined regulation of TRB1 expression and the function of TRB1 in interleukin-2 (IL-2) induction in Jurkat cells, a human acute T cell leukemia cell line. We found that TRB1 was strongly induced by phorbol 12-myristate 13-acetate (PMA) and ionomycin in these cells. IL-2 expression was induced in Jurkat cells activated by PMA and ionomycin; however, knockdown of TRB1 resulted in decreased induction of IL-2. TRB1 null Jurkat cells established using the CRISPR/Cas9 system also showed reduction of IL-2 expression on PMA/ionomycin stimulation. TRB1 knockdown also markedly inhibited IL-2 promoter activation. To determine the mechanism of the stimulatory effect on IL-2 induction, we focused on histone deacetylases (HDACs), and found that HDAC1 preferentially interacts with TRB1. TRB1 suppressed the interaction of HDAC1 with nuclear factor of activated T cells 2 (NFAT2), which is a crucial transcription factor for IL-2 induction. These results indicate that TRB1 is a positive regulator of IL-2 induction in activated T cells.
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Affiliation(s)
- Chiharu Miyajima
- Department of Cell Signaling, Graduate School of Pharmaceutical Sciences, Nagoya City University
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Abstract
Inflammation is part of the physiological innate immune response to invading pathogens and tissue injury. However, unresolved inflammation leads to human disease. The tribbles (TRIB) family of pseudokinase proteins has been shown to modulate key inflammatory signalling pathways, including the MAPK (mitogen-activated protein kinase) and PI3K (phosphoinositide 3-kinase) networks. This review summarizes our current knowledge on TRIBs in the context of inflammation, both at the level of molecular mechanisms and in disease development.
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LU XIAODONG, CHEN YUANYUAN, ZENG TIANTIAN, CHEN LUFANG, SHAO QIXIANG, QIN WENXIN. Knockout of the HCC suppressor gene Lass2 downregulates the expression level of miR-694. Oncol Rep 2014; 32:2696-702. [DOI: 10.3892/or.2014.3527] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 09/02/2014] [Indexed: 11/06/2022] Open
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Brisard D, Chesnel F, Elis S, Desmarchais A, Sánchez-Lazo L, Chasles M, Maillard V, Uzbekova S. Tribbles expression in cumulus cells is related to oocyte maturation and fatty acid metabolism. J Ovarian Res 2014; 7:44. [PMID: 24834131 PMCID: PMC4022380 DOI: 10.1186/1757-2215-7-44] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 04/10/2014] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND In mammals, the Tribbles family includes widely expressed serine-threonine kinase-like proteins (TRIB1, TRIB2 and TRIB3) that are involved in multiple biological processes including cell proliferation and fatty acid (FA) metabolism. Our recent studies highlighted the importance of FA metabolism in cumulus cells (CC) during oocyte maturation in vertebrates and reported a higher TRIB1 expression in CC surrounding in vivo mature oocytes as compared to immature ooocytes in mice and cows. The objective was to investigate Tribbles expression patterns in bovine CC during in vitro maturation (IVM) and to examine their roles in the cumulus-oocyte complex. METHODS Tribbles gene expression was analyzed in bovine and murine CC using quantitative RT-PCR. Proteins were detected using Western blot and intracellular localization was assessed by immunofluorescence. Bovine COCs were treated with etomoxir, an inhibitor of FA oxidation (FAO) which blocks CPT1 activity, during 6 h and 18 h IVM. Oocyte meiotic stage was assessed and expression of Tribbles and lipid metabolism genes was quantified in CC. RESULTS AND DISCUSSION TRIB1 and TRIB3 were more strongly expressed whereas TRIB2 was less expressed in CC surrounding the oocytes from preovulatory follicles than in CC of immature ones. In CC, Tribbles were located in the cytoplasm and nucleus; in mitotic cells TRIB2 and TRIB3 were detected in the spindle. In the oocyte, Tribbles proteins were detected in the ooplasm; also TRIB2 and TRIB3 were more accumulated in the germinal vesicle. In bovine CC, expression of TRIB1 and TRIB3 was transiently increased at a time preceding oocyte meiosis resumption in vitro. Treatment with etomoxir (150 μM) during IVM resulted in a significant reduction of oocyte maturation rate and decreased MAPK3/1 phosphorylation in the oocytes. In CC, 18 h IVM of etomoxir treatment significantly increased expression of TRIB1, TRIB3, CPTA1 (enzyme regulating FA entry in mitochondria for FAO) and CD36 (thrombospondin receptor involved in FA transport). Under the same conditions, expression of TRIB2 and ACACA (Acetyl coenzyme A carboxylase involved in FA synthesis) decreased in CC. All considered, Tribbles family members may be involved in cell proliferation and in FAO signaling in CC and participate in oocyte meiotic resumption regulation.
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Affiliation(s)
- Daphné Brisard
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, Nouzilly 37380, France ; CNRS UMR7247, Nouzilly 37380, France ; Université François Rabelais de Tours, Tours 37000, France ; IFCE, Nouzilly 37380, France
| | - Franck Chesnel
- CNRS, Université de Rennes 1, UMR6290, Rennes 35000, France
| | - Sébastien Elis
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, Nouzilly 37380, France ; CNRS UMR7247, Nouzilly 37380, France ; Université François Rabelais de Tours, Tours 37000, France ; IFCE, Nouzilly 37380, France
| | - Alice Desmarchais
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, Nouzilly 37380, France ; CNRS UMR7247, Nouzilly 37380, France ; Université François Rabelais de Tours, Tours 37000, France ; IFCE, Nouzilly 37380, France
| | - Laura Sánchez-Lazo
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, Nouzilly 37380, France ; CNRS UMR7247, Nouzilly 37380, France ; Université François Rabelais de Tours, Tours 37000, France ; IFCE, Nouzilly 37380, France
| | - Manon Chasles
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, Nouzilly 37380, France ; CNRS UMR7247, Nouzilly 37380, France ; Université François Rabelais de Tours, Tours 37000, France ; IFCE, Nouzilly 37380, France
| | - Virginie Maillard
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, Nouzilly 37380, France ; CNRS UMR7247, Nouzilly 37380, France ; Université François Rabelais de Tours, Tours 37000, France ; IFCE, Nouzilly 37380, France
| | - Svetlana Uzbekova
- INRA, UMR 85 Physiologie de la Reproduction et des Comportements, Nouzilly 37380, France ; CNRS UMR7247, Nouzilly 37380, France ; Université François Rabelais de Tours, Tours 37000, France ; IFCE, Nouzilly 37380, France
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Cunard R. Mammalian tribbles homologs at the crossroads of endoplasmic reticulum stress and Mammalian target of rapamycin pathways. SCIENTIFICA 2013; 2013:750871. [PMID: 24490110 PMCID: PMC3892554 DOI: 10.1155/2013/750871] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 11/20/2013] [Indexed: 05/03/2023]
Abstract
In 2000, investigators discovered Tribbles, a Drosophila protein that coordinates morphogenesis by inhibiting mitosis. Further work has delineated Xenopus (Xtrb2), Nematode (Nipi-3), and mammalian homologs of Drosophila tribbles, which include TRB1, TRB2, and TRB3. The sequences of tribbles homologs are highly conserved, and despite their protein kinase structure, to date they have not been shown to have kinase activity. TRB family members play a role in the differentiation of macrophages, lymphocytes, muscle cells, adipocytes, and osteoblasts. TRB isoforms also coordinate a number of critical cellular processes including glucose and lipid metabolism, inflammation, cellular stress, survival, apoptosis, and tumorigenesis. TRB family members modulate multiple complex signaling networks including mitogen activated protein kinase cascades, protein kinase B/AKT signaling, mammalian target of rapamycin, and inflammatory pathways. The following review will discuss metazoan homologs of Drosophila tribbles, their structure, expression patterns, and functions. In particular, we will focus on TRB3 function in the kidney in podocytes. This review will also discuss the key signaling pathways with which tribbles proteins interact and provide a rationale for developing novel therapeutics that exploit these interactions to provide better treatment options for both acute and chronic kidney disease.
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Affiliation(s)
- Robyn Cunard
- Research Service and Division of Nephrology-Hypertension, Veterans Affairs San Diego Healthcare System, Veterans Medical Research Foundation, Mail Code 151, 3350 La Jolla Village Drive, San Diego, CA 92161, USA
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
- *Robyn Cunard:
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