1
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Staal J, Driege Y, Van Gaever F, Steels J, Beyaert R. Chimeric and mutant CARD9 constructs enable analyses of conserved and diverged autoinhibition mechanisms in the CARD-CC protein family. FEBS J 2024; 291:1220-1245. [PMID: 38098267 DOI: 10.1111/febs.17035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 11/09/2023] [Accepted: 12/13/2023] [Indexed: 12/27/2023]
Abstract
Caspase recruitment domain-containing protein (CARD)9, CARD10, CARD11, and CARD14 all belong to the CARD-coiled coil (CC) protein family and originated from a single common ancestral protein early in vertebrate evolution. All four proteins form CARD-CC/BCL10/MALT1 (CBM) complexes leading to nuclear factor-kappa-B (NF-κB) activation after upstream phosphorylation by various protein kinase C (PKC) isoforms. CBM complex signaling is critical for innate and adaptive immunity, but aberrant activation can cause autoimmune or autoinflammatory diseases, or be oncogenic. CARD9 shows a superior auto-inhibition compared with other CARD-CC family proteins, with very low spontaneous activity when overexpressed in HEK293T cells. In contrast, the poor auto-inhibition of other CARD-CC family proteins, especially CARD10 (CARMA3) and CARD14 (CARMA2), is hampering characterization of upstream activators or activating mutations in overexpression studies. We grafted different domains from CARD10, 11, and 14 on CARD9 to generate chimeric CARD9 backbones for functional characterization of activating mutants using NF-κB reporter gene activation in HEK293T cells as readout. CARD11 (CARMA1) activity was not further reduced by grafting on CARD9 backbones. The chimeric CARD9 approach was subsequently validated by using several known disease-associated mutations in CARD10 and CARD14, and additional screening allowed us to identify several previously unknown activating natural variants in human CARD9 and CARD10. Using Genebass as a resource of exome-based disease association statistics, we found that activated alleles of CARD9 correlate with irritable bowel syndrome (IBS), constipation, osteoarthritis, fibromyalgia, insomnia, anxiety, and depression, which can occur as comorbidities.
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Affiliation(s)
- Jens Staal
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Belgium
- Department of Biochemistry and Microbiology, Ghent University, Belgium
| | - Yasmine Driege
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Femke Van Gaever
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Jill Steels
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Rudi Beyaert
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Belgium
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2
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Holgado A, Liu Z, Aidarova A, Mueller C, Haegman M, Driege Y, Kreike M, Scott CL, Afonina IS, Beyaert R. A20 is a master switch of IL-33 signaling in macrophages and determines IL-33-induced lung immunity. J Allergy Clin Immunol 2023; 152:244-256.e4. [PMID: 36898482 DOI: 10.1016/j.jaci.2023.02.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 01/17/2023] [Accepted: 02/06/2023] [Indexed: 03/11/2023]
Abstract
BACKGROUND IL-33 plays a major role in the pathogenesis of allergic diseases such as asthma and atopic dermatitis. On its release from lung epithelial cells, IL-33 primarily drives type 2 immune responses, accompanied by eosinophilia and robust production of IL-4, IL-5, and IL-13. However, several studies show that IL-33 can also drive a type 1 immune response. OBJECTIVE We sought to determine the role of A20 in the regulation of IL-33 signaling in macrophages and IL-33-induced lung immunity. METHODS We studied the immunologic response in lungs of IL-33-treated mice that specifically lack A20 in myeloid cells. We also analyzed IL-33 signaling in A20-deficient bone marrow-derived macrophages. RESULTS IL-33-induced lung innate lymphoid cell type 2 expansion, type 2 cytokine production, and eosinophilia were drastically reduced in the absence of macrophage A20 expression, whereas neutrophils and interstitial macrophages in lungs were increased. In vitro, IL-33-mediated nuclear factor kappa B activation was only weakly affected in A20-deficient macrophages. However, in the absence of A20, IL-33 gained the ability to activate signal transducer and activator of transcription 1 (STAT1) signaling and STAT1-dependent gene expression. Surprisingly, A20-deficient macrophages produced IFN-γ in response to IL-33, which was fully STAT1-dependent. Furthermore, STAT1 deficiency partially restored the ability of IL-33 to induce ILC2 expansion and eosinophilia in myeloid cell-specific A20 knockout mice. CONCLUSIONS We reveal a novel role for A20 as a negative regulator of IL-33-induced STAT1 signaling and IFN-γ production in macrophages, which determines lung immune responses.
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Affiliation(s)
- Aurora Holgado
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Zhuangzhuang Liu
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium; Laboratory of Myeloid Cell Biology in Tissue Damage and Inflammation, VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Aigerim Aidarova
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Christina Mueller
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Mira Haegman
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Yasmine Driege
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Marja Kreike
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Charlotte L Scott
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium; Laboratory of Myeloid Cell Biology in Tissue Damage and Inflammation, VIB-UGent Center for Inflammation Research, Ghent, Belgium
| | - Inna S Afonina
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Rudi Beyaert
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
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3
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Skordos I, Driege Y, Haegman M, Kreike M, Staal J, Demeyer A, Beyaert R. Normal lymphocyte homeostasis and function in
MALT1
protease‐resistant
HOIL
‐1 knock‐in mice. FEBS J 2022; 290:2032-2048. [PMID: 36479846 DOI: 10.1111/febs.16699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/23/2022] [Accepted: 12/05/2022] [Indexed: 12/12/2022]
Abstract
The uniqueness of MALT1 protease activity in controlling several aspects of immunity in humans has made it a very attractive therapeutic target for multiple autoimmune diseases and lymphoid malignancies. Despite several encouraging preclinical studies with MALT1 inhibitors, severe reduction in regulatory T cells and immune-mediated pathology seen in MALT1 protease-dead (MALT1-PD) mice and some, but not all, studies analysing the effect of prolonged pharmacological MALT1 protease inhibition, indicates the need to further unravel the mechanism of MALT1 protease function. Notably, the contribution of individual MALT1 substrates to the immune defects seen in MALT1-PD mice is still unclear. Previous in vitro studies indicated a role for MALT1-mediated cleavage of the E3 ubiquitin ligase HOIL-1 in the modulation of nuclear factor-κB (NF-κB) signalling and inflammatory gene expression in lymphocytes. Here, we addressed the immunological consequences of inhibition of HOIL-1 cleavage by generating and immunophenotyping MALT1 cleavage-resistant HOIL-1 knock-in (KI) mice. HOIL-1 KI mice appear healthy and have no overt phenotype. NF-κB activation in T or B cells, as well as IL-2 production and in vitro T-cell proliferation, is comparable between control and HOIL-1 KI cells. Inhibition of HOIL-1 cleavage in mice has no effect on thymic T-cell development and conventional T-cell homeostasis. Likewise, B-cell development and humoral immune responses are not affected. Together, these data exclude an important role of MALT1-mediated HOIL-1 cleavage in T- and B-cell development and function in mice.
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Affiliation(s)
- Ioannis Skordos
- Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, Technologiepark‐Zwijnaarde 71, 9052 Ghent Belgium
- Department of Biomedical Molecular Biology Ghent University, Technologiepark‐Zwijnaarde 71 9052 Ghent Belgium
| | - Yasmine Driege
- Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, Technologiepark‐Zwijnaarde 71, 9052 Ghent Belgium
- Department of Biomedical Molecular Biology Ghent University, Technologiepark‐Zwijnaarde 71 9052 Ghent Belgium
| | - Mira Haegman
- Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, Technologiepark‐Zwijnaarde 71, 9052 Ghent Belgium
- Department of Biomedical Molecular Biology Ghent University, Technologiepark‐Zwijnaarde 71 9052 Ghent Belgium
| | - Marja Kreike
- Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, Technologiepark‐Zwijnaarde 71, 9052 Ghent Belgium
- Department of Biomedical Molecular Biology Ghent University, Technologiepark‐Zwijnaarde 71 9052 Ghent Belgium
| | - Jens Staal
- Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, Technologiepark‐Zwijnaarde 71, 9052 Ghent Belgium
- Department of Biomedical Molecular Biology Ghent University, Technologiepark‐Zwijnaarde 71 9052 Ghent Belgium
| | - Annelies Demeyer
- Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, Technologiepark‐Zwijnaarde 71, 9052 Ghent Belgium
- Department of Biomedical Molecular Biology Ghent University, Technologiepark‐Zwijnaarde 71 9052 Ghent Belgium
- Department of Head and Skin Ghent University, C. Heymanslaan 10 9000 Ghent Belgium
| | - Rudi Beyaert
- Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, Technologiepark‐Zwijnaarde 71, 9052 Ghent Belgium
- Department of Biomedical Molecular Biology Ghent University, Technologiepark‐Zwijnaarde 71 9052 Ghent Belgium
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4
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Vanneste D, Staal J, Haegman M, Driege Y, Carels M, Van Nuffel E, De Bleser P, Saeys Y, Beyaert R, Afonina IS. CARD14 Signalling Ensures Cell Survival and Cancer Associated Gene Expression in Prostate Cancer Cells. Biomedicines 2022; 10:biomedicines10082008. [PMID: 36009554 PMCID: PMC9405774 DOI: 10.3390/biomedicines10082008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/21/2022] Open
Abstract
Prostate cancer (PCa) is one of the most common cancer types in men and represents an increasing global problem due to the modern Western lifestyle. The signalling adapter protein CARD14 is specifically expressed in epithelial cells, where it has been shown to mediate NF-κB signalling, but a role for CARD14 in carcinoma has not yet been described. By analysing existing cancer databases, we found that CARD14 overexpression strongly correlates with aggressive PCa in human patients. Moreover, we showed that CARD14 is overexpressed in the LNCaP PCa cell line and that knockdown of CARD14 severely reduces LNCaP cell survival. Similarly, knockdown of BCL10 and MALT1, which are known to form a signalling complex with CARD14, also induced LNCaP cell death. MALT1 is a paracaspase that mediates downstream signalling by acting as a scaffold, as well as a protease. Recent studies have already indicated a role for the scaffold function of MALT1 in PCa cell growth. Here, we also demonstrated constitutive MALT1 proteolytic activity in several PCa cell lines, leading to cleavage of A20 and CYLD. Inhibition of MALT1 protease activity did not affect PCa cell survival nor activation of NF-κB and JNK signalling, but reduced expression of cancer-associated genes, including the cytokine IL-6. Taken together, our results revealed a novel role for CARD14-induced signalling in regulating PCa cell survival and gene expression. The epithelial cell type-specific expression of CARD14 may offer novel opportunities for more specific therapeutic targeting approaches in PCa.
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Affiliation(s)
- Domien Vanneste
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Jens Staal
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Mira Haegman
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Yasmine Driege
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Marieke Carels
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Elien Van Nuffel
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
| | - Pieter De Bleser
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
- Unit of Data Mining and Modeling for Biomedicine, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium
| | - Yvan Saeys
- Unit of Data Mining and Modeling for Biomedicine, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium
- Department of Applied Mathematics, Computer Science and Statistics, Ghent University, 9000 Ghent, Belgium
| | - Rudi Beyaert
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
- Correspondence:
| | - Inna S. Afonina
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, 9000 Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
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5
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Kim SW, Alci K, Van Gaever F, Driege Y, Bicalho K, Goeminne G, Libert C, Goossens A, Beyaert R, Staal J. Engineering a highly sensitive biosensor for abscisic acid in mammalian cells. FEBS Lett 2022; 596:2576-2590. [PMID: 35727199 DOI: 10.1002/1873-3468.14431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 05/21/2022] [Accepted: 05/24/2022] [Indexed: 11/10/2022]
Abstract
Abscisic acid (ABA) is a signaling molecule conserved in plants, bacteria, fungi and animals. Recently, ABA has gained attention for its pharmacological activities and its potential as a biomarker for the severity of chronic obstructive pulmonary disease (COPD) and glioma. This prompts the development of a reliable, sensitive, rapid, and cost-effective method to quantify ABA levels in mammalian cells and tissues. The previously described ABA biosensor system based on the ABA-dependent interaction between the plant ABA receptor PYL1 and co-receptor ABI1 is not sensitive enough for the low ABA levels seen in mammals. Therefore, we optimized this system by replacing PYL1 with other high-affinity plant PYL proteins. The optimized biosensor system engineered with the PYL8 receptor enabled the quantification of ABA at low concentrations in HEK293T cells.
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Affiliation(s)
- Seo Woo Kim
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Center for Plant Systems Biology, VIB, Ghent, Belgium.,Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
| | - Kübra Alci
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,BCCM/GeneCorner, Ghent University, Ghent, Belgium
| | - Femke Van Gaever
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Yasmine Driege
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | | | | | - Claude Libert
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Alain Goossens
- Center for Plant Systems Biology, VIB, Ghent, Belgium.,Department of Plant Biotechnology and Bioinformatics, Ghent University, Ghent, Belgium
| | - Rudi Beyaert
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Jens Staal
- Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
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6
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Pieters T, T’Sas S, Vanhee S, Almeida A, Driege Y, Roels J, Van Loocke W, Daneels W, Baens M, Marchand A, Van Trimpont M, Matthijssens F, Morscio J, Lemeire K, Lintermans B, Reunes L, Chaltin P, Offner F, Van Dorpe J, Hochepied T, Berx G, Beyaert R, Staal J, Van Vlierberghe P, Goossens S. Cyclin D2 overexpression drives B1a-derived MCL-like lymphoma in mice. J Exp Med 2021; 218:e20202280. [PMID: 34406363 PMCID: PMC8377631 DOI: 10.1084/jem.20202280] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 02/24/2021] [Accepted: 07/21/2021] [Indexed: 12/14/2022] Open
Abstract
Mantle cell lymphoma (MCL) is an aggressive B cell lymphoma with poor long-term overall survival. Currently, MCL research and development of potential cures is hampered by the lack of good in vivo models. MCL is characterized by recurrent translocations of CCND1 or CCND2, resulting in overexpression of the cell cycle regulators cyclin D1 or D2, respectively. Here, we show, for the first time, that hematopoiesis-specific activation of cyclin D2 is sufficient to drive murine MCL-like lymphoma development. Furthermore, we demonstrate that cyclin D2 overexpression can synergize with loss of p53 to form aggressive and transplantable MCL-like lymphomas. Strikingly, cyclin D2-driven lymphomas display transcriptional, immunophenotypic, and functional similarities with B1a B cells. These MCL-like lymphomas have B1a-specific B cell receptors (BCRs), show elevated BCR and NF-κB pathway activation, and display increased MALT1 protease activity. Finally, we provide preclinical evidence that inhibition of MALT1 protease activity, which is essential for the development of early life-derived B1a cells, can be an effective therapeutic strategy to treat MCL.
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MESH Headings
- Allografts
- Animals
- B-Lymphocytes/metabolism
- B-Lymphocytes/pathology
- Cyclin D2/genetics
- Cyclin D2/metabolism
- Gene Expression Regulation, Neoplastic
- Lymphoma, Mantle-Cell/drug therapy
- Lymphoma, Mantle-Cell/genetics
- Lymphoma, Mantle-Cell/pathology
- Mice, Inbred C57BL
- Mice, Transgenic
- Mucosa-Associated Lymphoid Tissue Lymphoma Translocation 1 Protein/antagonists & inhibitors
- Mucosa-Associated Lymphoid Tissue Lymphoma Translocation 1 Protein/metabolism
- Neoplasms, Experimental/drug therapy
- Neoplasms, Experimental/genetics
- Neoplasms, Experimental/pathology
- Neoplastic Cells, Circulating
- Tumor Suppressor Protein p53/genetics
- Xenograft Model Antitumor Assays
- Mice
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Affiliation(s)
- Tim Pieters
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University and University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Sara T’Sas
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University and University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Stijn Vanhee
- Center for Inflammation Research, Flemish Institute for Biotechnology, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - André Almeida
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University and University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Yasmine Driege
- Center for Inflammation Research, Flemish Institute for Biotechnology, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Juliette Roels
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University and University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Wouter Van Loocke
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University and University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Willem Daneels
- Cancer Research Institute Ghent, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Department of Hematology, Ghent University Hospital, Ghent, Belgium
| | - Mathijs Baens
- Center for Innovation and Stimulation of Drug Discovery Leuven, Leuven, Belgium
| | - Arnaud Marchand
- Center for Innovation and Stimulation of Drug Discovery Leuven, Leuven, Belgium
| | - Maaike Van Trimpont
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University and University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Filip Matthijssens
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University and University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Julie Morscio
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University and University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Kelly Lemeire
- Center for Inflammation Research, Flemish Institute for Biotechnology, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Béatrice Lintermans
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University and University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Lindy Reunes
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University and University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Patrick Chaltin
- Center for Innovation and Stimulation of Drug Discovery Leuven, Leuven, Belgium
- Center for Drug Design and Discovery, Catholic University of Leuven, Leuven, Belgium
| | - Fritz Offner
- Cancer Research Institute Ghent, Ghent, Belgium
- Department of Hematology, Ghent University Hospital, Ghent, Belgium
| | - Jo Van Dorpe
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Tino Hochepied
- Center for Inflammation Research, Flemish Institute for Biotechnology, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Geert Berx
- Cancer Research Institute Ghent, Ghent, Belgium
- Center for Inflammation Research, Flemish Institute for Biotechnology, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Rudi Beyaert
- Center for Inflammation Research, Flemish Institute for Biotechnology, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Jens Staal
- Center for Inflammation Research, Flemish Institute for Biotechnology, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Pieter Van Vlierberghe
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University and University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
| | - Steven Goossens
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Center for Medical Genetics, Ghent University and University Hospital, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
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7
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Demeyer A, Driege Y, Skordos I, Coudenys J, Lemeire K, Elewaut D, Staal J, Beyaert R. Long-Term MALT1 Inhibition in Adult Mice Without Severe Systemic Autoimmunity. iScience 2020; 23:101557. [PMID: 33083726 PMCID: PMC7522757 DOI: 10.1016/j.isci.2020.101557] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 09/02/2020] [Accepted: 09/10/2020] [Indexed: 12/22/2022] Open
Abstract
The protease MALT1 is a key regulator of NF-κB signaling and a novel therapeutic target in autoimmunity and cancer. Initial enthusiasm supported by preclinical results with MALT1 inhibitors was tempered by studies showing that germline MALT1 protease inactivation in mice results in reduced regulatory T cells and lethal multi-organ inflammation due to expansion of IFN-γ-producing T cells. However, we show that long-term MALT1 inactivation, starting in adulthood, is not associated with severe systemic inflammation, despite reduced regulatory T cells. In contrast, IL-2-, TNF-, and IFN-γ-producing CD4+ T cells were strongly reduced. Limited formation of tertiary lymphoid structures was detectable in lungs and stomach, which did not affect overall health. Our data illustrate that MALT1 inhibition in prenatal or adult life has a different outcome and that long-term MALT1 inhibition in adulthood is not associated with severe side effects. Inducible MALT1 inactivation for up to 6 months in the absence of severe toxicity MALT1 inactivation in adult mice decreases Tregs without effector T cell activation Long-term MALT1 inactivation results in tertiary lymphoid structure formation MALT1 inhibition in prenatal or adult life has a different outcome
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Affiliation(s)
- Annelies Demeyer
- Center for Inflammation Research, VIB, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium
| | - Yasmine Driege
- Center for Inflammation Research, VIB, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium
| | - Ioannis Skordos
- Center for Inflammation Research, VIB, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium
| | - Julie Coudenys
- Center for Inflammation Research, VIB, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium
| | - Kelly Lemeire
- Center for Inflammation Research, VIB, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium
| | - Dirk Elewaut
- Center for Inflammation Research, VIB, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium.,Department of Internal Medicine and Pediatrics, Ghent University, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium
| | - Jens Staal
- Center for Inflammation Research, VIB, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium
| | - Rudi Beyaert
- Center for Inflammation Research, VIB, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Technologiepark-Zwijnaarde 71, 9052 Ghent, Belgium
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8
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Staal J, Driege Y, Haegman M, Kreike M, Iliaki S, Vanneste D, Lork M, Afonina IS, Braun H, Beyaert R. Defining the combinatorial space of PKC::CARD‐CC signal transduction nodes. FEBS J 2020; 288:1630-1647. [DOI: 10.1111/febs.15522] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 07/12/2020] [Accepted: 07/30/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Jens Staal
- Department of Biomedical Molecular Biology Ghent University Ghent Belgium
- Center for Inflammation Research Unit of Molecular Signal Transduction in Inflammation VIB Ghent Belgium
| | - Yasmine Driege
- Department of Biomedical Molecular Biology Ghent University Ghent Belgium
- Center for Inflammation Research Unit of Molecular Signal Transduction in Inflammation VIB Ghent Belgium
| | - Mira Haegman
- Department of Biomedical Molecular Biology Ghent University Ghent Belgium
- Center for Inflammation Research Unit of Molecular Signal Transduction in Inflammation VIB Ghent Belgium
| | - Marja Kreike
- Department of Biomedical Molecular Biology Ghent University Ghent Belgium
- Center for Inflammation Research Unit of Molecular Signal Transduction in Inflammation VIB Ghent Belgium
| | - Styliani Iliaki
- Department of Biomedical Molecular Biology Ghent University Ghent Belgium
- Center for Inflammation Research Unit of Molecular Signal Transduction in Inflammation VIB Ghent Belgium
| | - Domien Vanneste
- Department of Biomedical Molecular Biology Ghent University Ghent Belgium
- Center for Inflammation Research Unit of Molecular Signal Transduction in Inflammation VIB Ghent Belgium
| | - Marie Lork
- Department of Biomedical Molecular Biology Ghent University Ghent Belgium
- Center for Inflammation Research Unit of Molecular Signal Transduction in Inflammation VIB Ghent Belgium
| | - Inna S. Afonina
- Department of Biomedical Molecular Biology Ghent University Ghent Belgium
- Center for Inflammation Research Unit of Molecular Signal Transduction in Inflammation VIB Ghent Belgium
| | - Harald Braun
- Department of Biomedical Molecular Biology Ghent University Ghent Belgium
- Center for Inflammation Research Unit of Molecular Signal Transduction in Inflammation VIB Ghent Belgium
| | - Rudi Beyaert
- Department of Biomedical Molecular Biology Ghent University Ghent Belgium
- Center for Inflammation Research Unit of Molecular Signal Transduction in Inflammation VIB Ghent Belgium
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9
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Van Nuffel E, Staal J, Baudelet G, Haegman M, Driege Y, Hochepied T, Afonina IS, Beyaert R. MALT1 targeting suppresses CARD14-induced psoriatic dermatitis in mice. EMBO Rep 2020; 21:e49237. [PMID: 32343482 DOI: 10.15252/embr.201949237] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 03/27/2020] [Accepted: 03/31/2020] [Indexed: 12/16/2022] Open
Abstract
CARD14 gain-of-function mutations cause psoriasis in humans and mice. Together with BCL10 and the protease MALT1, mutant CARD14 forms a signaling node that mediates increased NF-κB signaling and proinflammatory gene expression in keratinocytes. However, it remains unclear whether psoriasis in response to CARD14 hyperactivation is keratinocyte-intrinsic or requires CARD14 signaling in other cells. Moreover, the in vivo effect of MALT1 targeting on mutant CARD14-induced psoriasis has not yet been documented. Here, we show that inducible keratinocyte-specific expression of CARD14E138A in mice rapidly induces epidermal thickening and inflammation as well as increased expression of several genes associated with psoriasis in humans. Keratinocyte-specific MALT1 deletion as well as oral treatment of mice with a specific MALT1 protease inhibitor strongly reduces psoriatic skin disease in CARD14E138A mice. Together, these data illustrate a keratinocyte-intrinsic causal role of enhanced CARD14/MALT1 signaling in the pathogenesis of psoriasis and show the potential of MALT1 inhibition for the treatment of psoriasis.
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Affiliation(s)
- Elien Van Nuffel
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Jens Staal
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Griet Baudelet
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Mira Haegman
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Yasmine Driege
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Tino Hochepied
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Inna S Afonina
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Rudi Beyaert
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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10
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Gilis E, Gaublomme D, Staal J, Venken K, Dhaenens M, Lambrecht S, Coudenys J, Decruy T, Schryvers N, Driege Y, Dumas E, Demeyer A, De Muynck A, van Hengel J, Van Hoorebeke L, Deforce D, Beyaert R, Elewaut D. Deletion of Mucosa-Associated Lymphoid Tissue Lymphoma Translocation Protein 1 in Mouse T Cells Protects Against Development of Autoimmune Arthritis but Leads to Spontaneous Osteoporosis. Arthritis Rheumatol 2019; 71:2005-2015. [PMID: 31259485 DOI: 10.1002/art.41029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 06/25/2019] [Indexed: 12/26/2022]
Abstract
OBJECTIVE Mucosa-associated lymphoid tissue lymphoma translocation protein 1 (MALT-1) plays a crucial role in innate and adaptive immune signaling by modulating the threshold for activation of immune cells, including Treg cells. Therefore, MALT-1 is regarded to be an interesting therapeutic target in several immune-mediated diseases. The goal of this study was to examine the role of MALT-1 in experimental animal models of rheumatoid arthritis (RA). METHODS MALT-1 activation was assessed by measuring cleavage of the deubiquitinase CYLD in lymphocytes from mice with collagen-induced arthritis (CIA). Furthermore, the impact of MALT-1 deficiency on arthritis was evaluated in Malt1KO mice with CIA or with collagen antibody-induced arthritis (CAIA). T cell-specific MALT-1 deficiency was measured in mice with deletion of T cell-specific MALT-1 (Malt1Tcell KO ), and the time-dependent effects of MALT-1 deficiency were assessed in mice with deletion of tamoxifen-inducible T cell-specific MALT-1 (Malt1iTcell KO ). Bone density was determined in MALT-1-deficient mice using micro-computed tomography and femur-bending tests. Reconstitution of Treg cells was performed using adoptive transfer experiments. RESULTS MALT-1 activation was observed in the lymphocytes of mice with CIA. T cell-specific MALT-1 deletion in the induction phase of arthritis (incidence of arthritis, 25% in control mice versus 0% in Malt1iTcell KO mice; P < 0.05), but not in the effector phase of arthritis, completely protected mice against the development of CIA. Consistent with this finding, MALT-1 deficiency had no impact on CAIA, an effector phase model of RA. Finally, mice with MALT-1 deficiency showed a spontaneous decrease in bone density (mean ± SEM trabecular thickness, 46.3 ± 0.7 μm in control mice versus 40 ± 1.1 μm in Malt1KO mice; P < 0.001), which was linked to the loss of Treg cells in these mice. CONCLUSION Overall, these data in murine models of RA highlight MALT-1 as a master regulator of T cell activation, which is relevant to the pathogenesis of autoimmune arthritis. Furthermore, these findings show that MALT-1 deficiency can lead to spontaneous osteoporosis, which is associated with impaired Treg cell numbers.
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Affiliation(s)
- Elisabeth Gilis
- VIB-UGent Center for Inflammation Research and Ghent University, Ghent, Belgium
| | - Djoere Gaublomme
- VIB-UGent Center for Inflammation Research and Ghent University, Ghent, Belgium
| | - Jens Staal
- VIB-UGent Center for Inflammation Research and Ghent University, Ghent, Belgium
| | - Koen Venken
- VIB-UGent Center for Inflammation Research and Ghent University, Ghent, Belgium
| | | | | | - Julie Coudenys
- VIB-UGent Center for Inflammation Research and Ghent University, Ghent, Belgium
| | - Tine Decruy
- VIB-UGent Center for Inflammation Research and Ghent University, Ghent, Belgium
| | - Nadia Schryvers
- VIB-UGent Center for Inflammation Research and Ghent University, Ghent, Belgium
| | - Yasmine Driege
- VIB-UGent Center for Inflammation Research and Ghent University, Ghent, Belgium
| | - Emilie Dumas
- VIB-UGent Center for Inflammation Research and Ghent University, Ghent, Belgium
| | - Annelies Demeyer
- VIB-UGent Center for Inflammation Research and Ghent University, Ghent, Belgium
| | | | | | | | | | - Rudi Beyaert
- VIB-UGent Center for Inflammation Research and Ghent University, Ghent, Belgium
| | - Dirk Elewaut
- VIB-UGent Center for Inflammation Research and Ghent University, Ghent, Belgium
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11
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Demeyer A, Van Nuffel E, Baudelet G, Driege Y, Kreike M, Muyllaert D, Staal J, Beyaert R. MALT1-Deficient Mice Develop Atopic-Like Dermatitis Upon Aging. Front Immunol 2019; 10:2330. [PMID: 31632405 PMCID: PMC6779721 DOI: 10.3389/fimmu.2019.02330] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/16/2019] [Indexed: 12/25/2022] Open
Abstract
MALT1 plays an important role in innate and adaptive immune signaling by acting as a scaffold protein that mediates NF-κB signaling. In addition, MALT1 is a cysteine protease that further fine tunes proinflammatory signaling by cleaving specific substrates. Deregulated MALT1 activity has been associated with immunodeficiency, autoimmunity, and cancer in mice and humans. Genetically engineered mice expressing catalytically inactive MALT1, still exerting its scaffold function, were previously shown to spontaneously develop autoimmunity due to a decrease in Tregs associated with increased effector T cell activation. In contrast, complete absence of MALT1 does not lead to autoimmunity, which has been explained by the impaired effector T cell activation due to the absence of MALT1-mediated signaling. However, here we report that MALT1-deficient mice develop atopic-like dermatitis upon aging, which is preceded by Th2 skewing, an increase in serum IgE, and a decrease in Treg frequency and surface expression of the Treg functionality marker CTLA-4.
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Affiliation(s)
- Annelies Demeyer
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Elien Van Nuffel
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Griet Baudelet
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Yasmine Driege
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Marja Kreike
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - David Muyllaert
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Jens Staal
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Rudi Beyaert
- VIB Center for Inflammation Research, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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12
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Demeyer A, Skordos I, Driege Y, Kreike M, Hochepied T, Baens M, Staal J, Beyaert R. MALT1 Proteolytic Activity Suppresses Autoimmunity in a T Cell Intrinsic Manner. Front Immunol 2019; 10:1898. [PMID: 31474984 PMCID: PMC6702287 DOI: 10.3389/fimmu.2019.01898] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 07/26/2019] [Indexed: 01/31/2023] Open
Abstract
MALT1 is a central signaling component in innate and adaptive immunity by regulating NF-κB and other key signaling pathways in different cell types. Activities of MALT1 are mediated by its scaffold and protease functions. Because of its role in lymphocyte activation and proliferation, inhibition of MALT1 proteolytic activity is of high interest for therapeutic targeting in autoimmunity and certain lymphomas. However, recent studies showing that Malt1 protease-dead knock-in (Malt1-PD) mice suffer from autoimmune disease have somewhat tempered the initial enthusiasm. Although it has been proposed that an imbalance between immune suppressive regulatory T cells (Tregs) and activated effector CD4+ T cells plays a key role in the autoimmune phenotype of Malt1-PD mice, the specific contribution of MALT1 proteolytic activity in T cells remains unclear. Using T cell-conditional Malt1 protease-dead knock-in (Malt1-PDT) mice, we here demonstrate that MALT1 has a T cell-intrinsic role in regulating the homeostasis and function of thymic and peripheral T cells. T cell-specific ablation of MALT1 proteolytic activity phenocopies mice in which MALT1 proteolytic activity has been genetically inactivated in all cell types. The Malt1-PDT mice have a reduced number of Tregs in the thymus and periphery, although the effect in the periphery is less pronounced compared to full-body Malt1-PD mice, indicating that also other cell types may promote Treg induction in a MALT1 protease-dependent manner. Despite the difference in peripheral Treg number, both T cell-specific and full-body Malt1-PD mice develop ataxia and multi-organ inflammation to a similar extent. Furthermore, reconstitution of the full-body Malt1-PD mice with T cell-specific expression of wild-type human MALT1 eliminated all signs of autoimmunity. Together, these findings establish an important T cell-intrinsic role of MALT1 proteolytic activity in the suppression of autoimmune responses.
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Affiliation(s)
- Annelies Demeyer
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Ioannis Skordos
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Yasmine Driege
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Marja Kreike
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Tino Hochepied
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Mathijs Baens
- Center for Innovation and Stimulation of Drug Discovery (CISTIM), Leuven, Belgium
| | - Jens Staal
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Rudi Beyaert
- VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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13
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Pauwels AM, Härtlova A, Peltier J, Driege Y, Baudelet G, Brodin P, Trost M, Beyaert R, Hoffmann E. Spatiotemporal Changes of the Phagosomal Proteome in Dendritic Cells in Response to LPS Stimulation. Mol Cell Proteomics 2019; 18:909-922. [PMID: 30808727 DOI: 10.1074/mcp.ra119.001316] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 02/23/2019] [Indexed: 12/15/2022] Open
Abstract
Dendritic cells (DCs) are professional phagocytes that use innate sensing and phagocytosis to internalize and degrade self as well as foreign material, such as pathogenic bacteria, within phagosomes. These intracellular compartments are equipped to generate antigenic peptides that serve as source for antigen presentation to T cells initiating adaptive immune responses. The phagosomal proteome of DCs is only partially studied and is highly dynamic as it changes during phagosome maturation, when phagosomes sequentially interact with endosomes and lysosomes. In addition, the activation status of the phagocyte can modulate the phagosomal composition and is able to shape phagosomal functions.In this study, we determined spatiotemporal changes of the proteome of DC phagosomes during their maturation and compared resting and lipopolysaccharide (LPS)-stimulated bone marrow-derived DCs by label-free, quantitative mass spectrometry. Ovalbumin-coupled latex beads were used as phagocytosis model system and revealed that LPS-treated DCs show decreased recruitment of proteins involved in phagosome maturation, such as subunits of the vacuolar proton ATPase, cathepsin B, D, S, and RAB7. In contrast, those phagosomes were characterized by an increased recruitment of proteins involved in antigen cross-presentation, e.g. different subunits of MHC I molecules, the proteasome and tapasin, confirming the observed increase in cross-presentation efficacy in those cells. Further, several proteins were identified that were not previously associated with phagosomal functions. Hierarchical clustering of phagosomal proteins demonstrated that their acquisition to DC phagosomes is not only dependent on the duration of phagosome maturation but also on the activation state of DCs. Thus, our study provides a comprehensive overview of how DCs alter their phagosome composition in response to LPS, which has profound impact on the initiation of efficient immune responses.
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Affiliation(s)
- Anne-Marie Pauwels
- From the ‡Unit of Molecular Signal Transduction in Inflammation, VIB Center for Inflammation Research, Ghent, Belgium;; §Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Anetta Härtlova
- ¶Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle-upon-Tyne, UK
| | - Julien Peltier
- ¶Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle-upon-Tyne, UK
| | - Yasmine Driege
- From the ‡Unit of Molecular Signal Transduction in Inflammation, VIB Center for Inflammation Research, Ghent, Belgium;; §Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Griet Baudelet
- From the ‡Unit of Molecular Signal Transduction in Inflammation, VIB Center for Inflammation Research, Ghent, Belgium;; §Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Priscille Brodin
- ‖Univ. Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, Lille, France
| | - Matthias Trost
- ¶Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle-upon-Tyne, UK
| | - Rudi Beyaert
- From the ‡Unit of Molecular Signal Transduction in Inflammation, VIB Center for Inflammation Research, Ghent, Belgium;; §Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Eik Hoffmann
- From the ‡Unit of Molecular Signal Transduction in Inflammation, VIB Center for Inflammation Research, Ghent, Belgium;; §Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium;; ‖Univ. Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Center for Infection and Immunity of Lille, Lille, France
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14
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Meloni L, Verstrepen L, Kreike M, Staal J, Driege Y, Afonina IS, Beyaert R. Mepazine Inhibits RANK-Induced Osteoclastogenesis Independent of Its MALT1 Inhibitory Function. Molecules 2018; 23:molecules23123144. [PMID: 30513612 PMCID: PMC6320945 DOI: 10.3390/molecules23123144] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 11/23/2018] [Accepted: 11/27/2018] [Indexed: 12/26/2022] Open
Abstract
Mucosa-associated lymphoid tissue lymphoma translocation protein 1 (MALT1) is an intracellular cysteine protease (paracaspase) that plays an integral role in innate and adaptive immunity. The phenothiazine mepazine has been shown to inhibit the proteolytic activity of MALT1 and is frequently used to study its biological role. MALT1 has recently been suggested as a therapeutic target in rheumatoid arthritis. Here, we analyzed the effect of mepazine on the receptor activator of nuclear factor κ-B (RANK)-induced osteoclastogenesis. The treatment of mouse bone marrow precursor cells with mepazine strongly inhibited the RANK ligand (RANKL)-induced formation of osteoclasts, as well as the expression of several osteoclast markers, such as TRAP, cathepsin K, and calcitonin. However, RANKL induced osteoclastogenesis equally well in bone marrow cells derived from wild-type and Malt1 knock-out mice. Furthermore, the protective effect of mepazine was not affected by MALT1 deficiency. Additionally, the absence of MALT1 did not affect RANK-induced nuclear factor κB (NF-κB) and activator protein 1 (AP-1) activation. Overall, these studies demonstrate that MALT1 is not essential for RANK-induced osteoclastogenesis, and implicate a MALT1-independent mechanism of action of mepazine that should be taken into account in future studies using this compound.
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Affiliation(s)
- Laura Meloni
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
| | - Lynn Verstrepen
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
| | - Marja Kreike
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
| | - Jens Staal
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
| | - Yasmine Driege
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
| | - Inna S Afonina
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
| | - Rudi Beyaert
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research, VIB, 9052 Ghent, Belgium.
- Department of Biomedical Molecular Biology, Ghent University, 9052 Ghent, Belgium.
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15
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Gul IS, Staal J, Hulpiau P, De Keuckelaere E, Kamm K, Deroo T, Sanders E, Staes K, Driege Y, Saeys Y, Beyaert R, Technau U, Schierwater B, van Roy F. GC Content of Early Metazoan Genes and Its Impact on Gene Expression Levels in Mammalian Cell Lines. Genome Biol Evol 2018; 10:909-917. [PMID: 29608715 PMCID: PMC5952964 DOI: 10.1093/gbe/evy040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2018] [Indexed: 01/20/2023] Open
Abstract
With the genomes available for many animal clades, including the early-branching metazoans, one can readily study the functional conservation of genes across a diversity of animal lineages. Ectopic expression of an animal protein in, for instance, a mammalian cell line is a generally used strategy in structure–function analysis. However, this might turn out to be problematic in case of distantly related species. Here we analyzed the GC content of the coding sequences of basal animals and show its impact on gene expression levels in human cell lines, and, importantly, how this expression efficiency can be improved. Optimization of the GC3 content in the coding sequences of cadherin, alpha-catenin, and paracaspase of Trichoplax adhaerens dramatically increased the expression of these basal animal genes in human cell lines.
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Affiliation(s)
- Ismail Sahin Gul
- Center for Inflammation Research, Flanders Institute for Biotechnology (VIB), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Jens Staal
- Center for Inflammation Research, Flanders Institute for Biotechnology (VIB), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Paco Hulpiau
- Center for Inflammation Research, Flanders Institute for Biotechnology (VIB), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Evi De Keuckelaere
- Center for Inflammation Research, Flanders Institute for Biotechnology (VIB), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Kai Kamm
- Institut für Tierökologie und Zellbiologie (ITZ), Division of Ecology and Evolution, Stiftung Tieraerztliche Hochschule Hannover, Hannover, Germany
| | - Tom Deroo
- Center for Inflammation Research, Flanders Institute for Biotechnology (VIB), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Ellen Sanders
- Center for Inflammation Research, Flanders Institute for Biotechnology (VIB), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Katrien Staes
- Center for Inflammation Research, Flanders Institute for Biotechnology (VIB), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Yasmine Driege
- Center for Inflammation Research, Flanders Institute for Biotechnology (VIB), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Yvan Saeys
- Center for Inflammation Research, Flanders Institute for Biotechnology (VIB), Ghent, Belgium.,Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Belgium
| | - Rudi Beyaert
- Center for Inflammation Research, Flanders Institute for Biotechnology (VIB), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Belgium
| | - Ulrich Technau
- Department of Molecular Evolution and Development, Faculty of Life Sciences, University of Vienna, Austria
| | - Bernd Schierwater
- Institut für Tierökologie und Zellbiologie (ITZ), Division of Ecology and Evolution, Stiftung Tieraerztliche Hochschule Hannover, Hannover, Germany
| | - Frans van Roy
- Center for Inflammation Research, Flanders Institute for Biotechnology (VIB), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Belgium
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16
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Staal J, Driege Y, Haegman M, Borghi A, Hulpiau P, Lievens L, Gul IS, Sundararaman S, Gonçalves A, Dhondt I, Pinzón JH, Braeckman BP, Technau U, Saeys Y, van Roy F, Beyaert R. Ancient Origin of the CARD-Coiled Coil/Bcl10/MALT1-Like Paracaspase Signaling Complex Indicates Unknown Critical Functions. Front Immunol 2018; 9:1136. [PMID: 29881386 PMCID: PMC5978004 DOI: 10.3389/fimmu.2018.01136] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 05/07/2018] [Indexed: 12/16/2022] Open
Abstract
The CARD–coiled coil (CC)/Bcl10/MALT1-like paracaspase (CBM) signaling complexes composed of a CARD–CC family member (CARD-9, -10, -11, or -14), Bcl10, and the type 1 paracaspase MALT1 (PCASP1) play a pivotal role in immunity, inflammation, and cancer. Targeting MALT1 proteolytic activity is of potential therapeutic interest. However, little is known about the evolutionary origin and the original functions of the CBM complex. Type 1 paracaspases originated before the last common ancestor of planulozoa (bilaterians and cnidarians). Notably in bilaterians, Ecdysozoa (e.g., nematodes and insects) lacks Bcl10, whereas other lineages have a Bcl10 homolog. A survey of invertebrate CARD–CC homologs revealed such homologs only in species with Bcl10, indicating an ancient common origin of the entire CBM complex. Furthermore, vertebrate-like Syk/Zap70 tyrosine kinase homologs with the ITAM-binding SH2 domain were only found in invertebrate organisms with CARD–CC/Bcl10, indicating that this pathway might be related to the original function of the CBM complex. Moreover, the type 1 paracaspase sequences from invertebrate organisms that have CARD–CC/Bcl10 are more similar to vertebrate paracaspases. Functional analysis of protein–protein interactions, NF-κB signaling, and CYLD cleavage for selected invertebrate type 1 paracaspase and Bcl10 homologs supports this scenario and indicates an ancient origin of the CARD–CC/Bcl10/paracaspase signaling complex. By contrast, many of the known MALT1-associated activities evolved fairly recently, indicating that unknown functions are at the basis of the protein conservation. As a proof-of-concept, we provide initial evidence for a CBM- and NF-κB-independent neuronal function of the Caenorhabditis elegans type 1 paracaspase malt-1. In conclusion, this study shows how evolutionary insights may point at alternative functions of MALT1.
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Affiliation(s)
- Jens Staal
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Yasmine Driege
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Mira Haegman
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Alice Borghi
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Paco Hulpiau
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Unit of Data Mining and Modeling for Biomedicine, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium
| | - Laurens Lievens
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Ismail Sahin Gul
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Unit of Molecular Cell Biology, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium
| | - Srividhya Sundararaman
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Unit of Molecular Cell Biology, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium
| | - Amanda Gonçalves
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,VIB Bio Imaging Core Gent, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium
| | - Ineke Dhondt
- Laboratory for Aging Physiology and Molecular Evolution, Biology Department, Ghent University, Ghent, Belgium
| | - Jorge H Pinzón
- Department of Biology, University of Texas Arlington, Arlington, TX, United States
| | - Bart P Braeckman
- Laboratory for Aging Physiology and Molecular Evolution, Biology Department, Ghent University, Ghent, Belgium
| | - Ulrich Technau
- Department of Molecular Evolution and Development, Faculty of Life Sciences, University of Vienna, Vienna, Austria
| | - Yvan Saeys
- Unit of Data Mining and Modeling for Biomedicine, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium
| | - Frans van Roy
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.,Unit of Molecular Cell Biology, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium
| | - Rudi Beyaert
- Unit of Molecular Signal Transduction in Inflammation, VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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17
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Afonina IS, Van Nuffel E, Baudelet G, Driege Y, Kreike M, Staal J, Beyaert R. The paracaspase MALT1 mediates CARD14-induced signaling in keratinocytes. EMBO Rep 2016; 17:914-27. [PMID: 27113748 DOI: 10.15252/embr.201642109] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 04/01/2016] [Indexed: 11/09/2022] Open
Abstract
Mutations in CARD14 have recently been linked to psoriasis susceptibility. CARD14 is an epidermal regulator of NF-κB activation. However, the ability of CARD14 to activate other signaling pathways as well as the biochemical mechanisms that mediate and regulate its function remain to be determined. Here, we report that in addition to NF-κB signaling, CARD14 activates p38 and JNK MAP kinase pathways, all of which are dependent on the paracaspase MALT1. Mechanistically, we demonstrate that CARD14 physically interacts with paracaspase MALT1 and activates MALT1 proteolytic activity and inflammatory gene expression, which are enhanced by psoriasis-associated CARD14 mutations. Moreover, we show that MALT1 deficiency or pharmacological inhibition of MALT1 catalytic activity inhibits pathogenic mutant CARD14-induced cytokine and chemokine expression in human primary keratinocytes. Collectively, our findings demonstrate a novel role for MALT1 in CARD14-induced signaling and indicate MALT1 as a valuable therapeutic target in psoriasis.
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Affiliation(s)
- Inna S Afonina
- Unit of Molecular Signal Transduction in Inflammation, Inflammation Research Center VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Elien Van Nuffel
- Unit of Molecular Signal Transduction in Inflammation, Inflammation Research Center VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Griet Baudelet
- Unit of Molecular Signal Transduction in Inflammation, Inflammation Research Center VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Yasmine Driege
- Unit of Molecular Signal Transduction in Inflammation, Inflammation Research Center VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Marja Kreike
- Unit of Molecular Signal Transduction in Inflammation, Inflammation Research Center VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Jens Staal
- Unit of Molecular Signal Transduction in Inflammation, Inflammation Research Center VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Rudi Beyaert
- Unit of Molecular Signal Transduction in Inflammation, Inflammation Research Center VIB, Ghent, Belgium Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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18
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Elton L, Carpentier I, Staal J, Driege Y, Haegman M, Beyaert R. MALT1 cleaves the E3 ubiquitin ligase HOIL-1 in activated T cells, generating a dominant negative inhibitor of LUBAC-induced NF-κB signaling. FEBS J 2015; 283:403-12. [DOI: 10.1111/febs.13597] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 11/10/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Lynn Elton
- Inflammation Research Center, Unit of Molecular Signal Transduction in Inflammation, VIB, Department of Biomedical Molecular Biology; Ghent University; Belgium
| | - Isabelle Carpentier
- Inflammation Research Center, Unit of Molecular Signal Transduction in Inflammation, VIB, Department of Biomedical Molecular Biology; Ghent University; Belgium
| | - Jens Staal
- Inflammation Research Center, Unit of Molecular Signal Transduction in Inflammation, VIB, Department of Biomedical Molecular Biology; Ghent University; Belgium
| | - Yasmine Driege
- Inflammation Research Center, Unit of Molecular Signal Transduction in Inflammation, VIB, Department of Biomedical Molecular Biology; Ghent University; Belgium
| | - Mira Haegman
- Inflammation Research Center, Unit of Molecular Signal Transduction in Inflammation, VIB, Department of Biomedical Molecular Biology; Ghent University; Belgium
| | - Rudi Beyaert
- Inflammation Research Center, Unit of Molecular Signal Transduction in Inflammation, VIB, Department of Biomedical Molecular Biology; Ghent University; Belgium
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19
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Hulpiau P, Driege Y, Staal J, Beyaert R. MALT1 is not alone after all: identification of novel paracaspases. Cell Mol Life Sci 2015; 73:1103-16. [PMID: 26377317 DOI: 10.1007/s00018-015-2041-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 08/18/2015] [Accepted: 09/07/2015] [Indexed: 01/08/2023]
Abstract
Paracaspases and metacaspases are two families of caspase-like proteins identified in 2000. Up until now paracaspases were considered a single gene family with one known non-metazoan paracaspase in the slime mold Dictyostelium and a single animal paracaspase called MALT1. Human MALT1 is a critical signaling component in many innate and adaptive immunity pathways that drive inflammation, and when it is overly active, it can also cause certain forms of cancer. Here, we report the identification and functional analysis of two new vertebrate paracaspases, PCASP2 and PCASP3. Functional characterization indicates that both scaffold and protease functions are conserved across the three vertebrate paralogs. This redundancy might explain the loss of two of the paralogs in mammals and one in Xenopus. Several of the vertebrate paracaspases currently have incorrect or ambiguous annotations. We propose to annotate them accordingly as PCASP1, PCASP2, and PCASP3 similar to the caspase gene nomenclature. A comprehensive search in other metazoans and in non-metazoan species identified additional new paracaspases. We also discovered the first animal metacaspase in the sponge Amphimedon. Comparative analysis of the active site suggests that paracaspases constitute one of the several subclasses of metacaspases that have evolved several times independently.
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Affiliation(s)
- Paco Hulpiau
- Inflammation Research Center, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Unit of Molecular Signal Transduction in Inflammation, Ghent University, Technologiepark 927, 9052, Ghent, Belgium
| | - Yasmine Driege
- Inflammation Research Center, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Unit of Molecular Signal Transduction in Inflammation, Ghent University, Technologiepark 927, 9052, Ghent, Belgium
| | - Jens Staal
- Inflammation Research Center, VIB, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Unit of Molecular Signal Transduction in Inflammation, Ghent University, Technologiepark 927, 9052, Ghent, Belgium.
| | - Rudi Beyaert
- Inflammation Research Center, VIB, Ghent, Belgium. .,Department of Biomedical Molecular Biology, Unit of Molecular Signal Transduction in Inflammation, Ghent University, Technologiepark 927, 9052, Ghent, Belgium.
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20
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Abstract
Low environmental temperature and dietary restriction (DR) extend lifespan in diverse organisms. In the fruit fly Drosophila, switching flies between temperatures alters the rate at which mortality subsequently increases with age but does not reverse mortality rate. In contrast, DR acts acutely to lower mortality risk; flies switched between control feeding and DR show a rapid reversal of mortality rate. Dietary restriction thus does not slow accumulation of aging-related damage. Molecular species that track the effects of temperatures on mortality but are unaltered with switches in diet are therefore potential biomarkers of aging-related damage. However, molecular species that switch upon instigation or withdrawal of DR are thus potential biomarkers of mechanisms underlying risk of mortality, but not of aging-related damage. Using this approach, we assessed several commonly used biomarkers of aging-related damage. Accumulation of fluorescent advanced glycation end products (AGEs) correlated strongly with mortality rate of flies at different temperatures but was independent of diet. Hence, fluorescent AGEs are biomarkers of aging-related damage in flies. In contrast, five oxidized and glycated protein adducts accumulated with age, but were reversible with both temperature and diet, and are therefore not markers either of acute risk of dying or of aging-related damage. Our approach provides a powerful method for identification of biomarkers of aging.
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Affiliation(s)
- Jake Jacobson
- Institute for Healthy Ageing, Department of Genes, Evolution and Environment, University College London, London WC1E 6BT, UK; Max Planck Institute for Biology of Ageing, Gleueler Strasse. 50 a, D-50931, Cologne, Germany
| | | | - Manuel Portero-Otín
- Metabolic Pathophysiology Research Group, Department of Experimental Medicine, University of Lleida-IRBLLEIDA, Lleida 25008, Spain
| | - Reinald Pamplona
- Metabolic Pathophysiology Research Group, Department of Experimental Medicine, University of Lleida-IRBLLEIDA, Lleida 25008, Spain
| | - Tapiwanashe Magwere
- Institute for Healthy Ageing, Department of Genes, Evolution and Environment, University College London, London WC1E 6BT, UK; Max Planck Institute for Biology of Ageing, Gleueler Strasse. 50 a, D-50931, Cologne, Germany
| | - Satomi Miwa
- MRC Mitochondrial Biology Unit, Hills Rd, Cambridge CB2 2XY, UK
| | - Yasmine Driege
- Institute for Healthy Ageing, Department of Genes, Evolution and Environment, University College London, London WC1E 6BT, UK; Max Planck Institute for Biology of Ageing, Gleueler Strasse. 50 a, D-50931, Cologne, Germany
| | - Martin D Brand
- MRC Mitochondrial Biology Unit, Hills Rd, Cambridge CB2 2XY, UK
| | - Linda Partridge
- Institute for Healthy Ageing, Department of Genes, Evolution and Environment, University College London, London WC1E 6BT, UK; Max Planck Institute for Biology of Ageing, Gleueler Strasse. 50 a, D-50931, Cologne, Germany
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21
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Broughton SJ, Slack C, Alic N, Metaxakis A, Bass TM, Driege Y, Partridge L. DILP-producing median neurosecretory cells in the Drosophila brain mediate the response of lifespan to nutrition. Aging Cell 2010; 9:336-46. [PMID: 20156206 DOI: 10.1111/j.1474-9726.2010.00558.x] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Dietary restriction extends lifespan in diverse organisms, but the gene regulatory mechanisms and tissues mediating the increased survival are still unclear. Studies in worms and flies have revealed a number of candidate mechanisms, including the target of rapamycin and insulin/IGF-like signalling (IIS) pathways and suggested a specific role for the nervous system in mediating the response. A pair of sensory neurons in Caenorhabditis elegans has been found to specifically mediate DR lifespan extension, but a neuronal focus in the Drosophila nervous system has not yet been identified. We have previously shown that reducing IIS via the partial ablation of median neurosecretory cells in the Drosophila adult brain, which produce three of the seven fly insulin-like peptides, extends lifespan. Here, we show that these cells are required to mediate the response of lifespan to full feeding in a yeast dilution DR regime and that they appear to do so by mechanisms that involve both altered IIS and other endocrine effects. We also present evidence of an interaction between these mNSCs, nutrition and sleep, further emphasising the functional homology between the DILP-producing neurosecretory cells in the Drosophila brain and the hypothalamus of mammals in their roles as integration sites of many inputs for the control of lifespan and behaviour.
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22
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Broughton S, Alic N, Slack C, Bass T, Ikeya T, Vinti G, Tommasi AM, Driege Y, Hafen E, Partridge L. Reduction of DILP2 in Drosophila triages a metabolic phenotype from lifespan revealing redundancy and compensation among DILPs. PLoS One 2008; 3:e3721. [PMID: 19005568 PMCID: PMC2579582 DOI: 10.1371/journal.pone.0003721] [Citation(s) in RCA: 146] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2008] [Accepted: 10/27/2008] [Indexed: 11/25/2022] Open
Abstract
The insulin/IGF-like signalling (IIS) pathway has diverse functions in all multicellular organisms, including determination of lifespan. The seven insulin-like peptides (DILPs) in Drosophila are expressed in a stage- and tissue-specific manner. Partial ablation of the median neurosecretory cells (mNSCs) in the brain, which produce three DILPs, extends lifespan, reduces fecundity, alters lipid and carbohydrate metabolism and increases oxidative stress resistance. To determine if reduced expression of DILPs is causal in these effects, and to investigate possible functional diversification and redundancy between DILPs, we used RNA interference to lower specifically the transcript and protein levels of dilp2, the most highly expressed of the mNSC-derived DILPs. We found that DILP2 was limiting only for the increased whole-body trehalose content associated with mNSC-ablation. We observed a compensatory increase in dilp3 and 5 mRNA upon dilp2 knock down. By manipulation of dfoxo and dInR, we showed that the increase in dilp3 is regulated via autocrine insulin signaling in the mNSCs. Our study demonstrates that, despite the correlation between reduced dilp2 mRNA levels and lifespan-extension often observed, DILP2 reduction is not sufficient to extend lifespan. Nor is the increased trehalose storage associated with reduced IIS sufficient to extend lifespan. To understand the normal regulation of expression of the dilps and any functional diversification between them will require independent control of the expression of different dilps.
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Affiliation(s)
- Susan Broughton
- UCL Institute of Healthy Ageing, GEE, University College London, London, United Kingdom
| | - Nazif Alic
- UCL Institute of Healthy Ageing, GEE, University College London, London, United Kingdom
| | - Cathy Slack
- UCL Institute of Healthy Ageing, GEE, University College London, London, United Kingdom
| | - Timothy Bass
- UCL Institute of Healthy Ageing, GEE, University College London, London, United Kingdom
| | - Tomoatsu Ikeya
- UCL Institute of Healthy Ageing, GEE, University College London, London, United Kingdom
| | - Giovanna Vinti
- UCL Institute of Healthy Ageing, GEE, University College London, London, United Kingdom
| | - Anna Maria Tommasi
- UCL Institute of Healthy Ageing, GEE, University College London, London, United Kingdom
| | - Yasmine Driege
- UCL Institute of Healthy Ageing, GEE, University College London, London, United Kingdom
| | - Ernst Hafen
- ETH Zurich, Institute of Molecular Systems Biology, Zurich, Switzerland
| | - Linda Partridge
- UCL Institute of Healthy Ageing, GEE, University College London, London, United Kingdom
- * E-mail:
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23
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Toivonen JM, Walker GA, Martinez-Diaz P, Bjedov I, Driege Y, Jacobs HT, Gems D, Partridge L. No influence of Indy on lifespan in Drosophila after correction for genetic and cytoplasmic background effects. PLoS Genet 2007; 3:e95. [PMID: 17571923 PMCID: PMC1892600 DOI: 10.1371/journal.pgen.0030095] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2007] [Accepted: 04/26/2007] [Indexed: 01/10/2023] Open
Abstract
To investigate whether alterations in mitochondrial metabolism affect longevity in Drosophila melanogaster, we studied lifespan in various single gene mutants, using inbred and outbred genetic backgrounds. As positive controls we included the two most intensively studied mutants of Indy, which encodes a Drosophila Krebs cycle intermediate transporter. It has been reported that flies heterozygous for these Indy mutations, which lie outside the coding region, show almost a doubling of lifespan. We report that only one of the two mutants lowers mRNA levels, implying that the lifespan extension observed is not attributable to the Indy mutations themselves. Moreover, neither Indy mutation extended lifespan in female flies in any genetic background tested. In the original genetic background, only the Indy mutation associated with altered RNA expression extended lifespan in male flies. However, this effect was abolished by backcrossing into standard outbred genetic backgrounds, and was associated with an unidentified locus on the X chromosome. The original Indy line with long-lived males is infected by the cytoplasmic symbiont Wolbachia, and the longevity of Indy males disappeared after tetracycline clearance of this endosymbiont. These findings underscore the critical importance of standardisation of genetic background and of cytoplasm in genetic studies of lifespan, and show that the lifespan extension previously claimed for Indy mutants was entirely attributable to confounding variation from these two sources. In addition, we saw no effects on lifespan of expression knockdown of the Indy orthologues nac-2 and nac-3 in the nematode Caenorhabditis elegans.
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Affiliation(s)
- Janne M Toivonen
- Department of Biology, University College London, London, United Kingdom
- Institute of Medical Technology and Tampere University Hospital, FI-33014, University of Tampere, Tampere, Finland
| | - Glenda A Walker
- Department of Biology, University College London, London, United Kingdom
| | | | - Ivana Bjedov
- Department of Biology, University College London, London, United Kingdom
| | - Yasmine Driege
- Department of Biology, University College London, London, United Kingdom
| | - Howard T Jacobs
- Institute of Medical Technology and Tampere University Hospital, FI-33014, University of Tampere, Tampere, Finland
| | - David Gems
- Department of Biology, University College London, London, United Kingdom
| | - Linda Partridge
- Department of Biology, University College London, London, United Kingdom
- * To whom correspondence should be addressed. E-mail:
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24
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Broughton SJ, Piper MDW, Ikeya T, Bass TM, Jacobson J, Driege Y, Martinez P, Hafen E, Withers DJ, Leevers SJ, Partridge L. Longer lifespan, altered metabolism, and stress resistance in Drosophila from ablation of cells making insulin-like ligands. Proc Natl Acad Sci U S A 2005; 102:3105-10. [PMID: 15708981 PMCID: PMC549445 DOI: 10.1073/pnas.0405775102] [Citation(s) in RCA: 589] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2004] [Accepted: 01/05/2005] [Indexed: 12/13/2022] Open
Abstract
The insulin/insulin-like growth factor-like signaling pathway, present in all multicellular organisms, regulates diverse functions including growth, development, fecundity, metabolic homeostasis, and lifespan. In flies, ligands of the insulin/insulin-like growth factor-like signaling pathway, the Drosophila insulin-like peptides, regulate growth and hemolymph carbohydrate homeostasis during development and are expressed in a stage- and tissue-specific manner. Here, we show that ablation of Drosophila insulin-like peptide-producing median neurosecretory cells in the brain leads to increased fasting glucose levels in the hemolymph of adults similar to that found in diabetic mammals. They also exhibit increased storage of lipid and carbohydrate, reduced fecundity, and reduced tolerance of heat and cold. However, the ablated flies show an extension of median and maximal lifespan and increased resistance to oxidative stress and starvation.
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Affiliation(s)
- Susan J Broughton
- Department of Biology, University College London, Gower Street, London WC1E 6BT, United Kingdom
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