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Dhillon-LaBrooy A, Braband KL, Tantawy E, Rampoldi F, Kao YS, Boukhallouk F, Velasquez LN, Mamareli P, Silva L, Damasceno LEA, Weidenthaler-Barth B, Berod L, Almeida L, Sparwasser T. Inhibition of Mitochondrial Translation Ameliorates Imiquimod-Induced Psoriasis-Like Skin Inflammation by Targeting Vγ4+ γδ T Cells. J Invest Dermatol 2024; 144:844-854.e2. [PMID: 37832844 DOI: 10.1016/j.jid.2023.09.275] [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: 01/13/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023]
Abstract
Psoriasis is an inflammatory skin disorder that is characterized by keratinocyte hyperproliferation in response to immune cell infiltration and cytokine secretion in the dermis. γδ T cells expressing the Vγ4 TCR chain are among the highest contributors of IL-17A, which is a major cytokine that drives a psoriasis flare, making Vγ4+ γδ T cells a suitable target to restrict psoriasis progression. In this study, we demonstrate that mitochondrial translation inhibition within Vγ4+ γδ T cells effectively reduced erythema, scaling, and skin thickening in a murine model of psoriatic disease. The antibiotic linezolid, which blocks mitochondrial translation, inhibited the production of mitochondrial-encoded protein cytochrome c oxidase in Vγ4+ γδ T cells and systemically reduced the frequencies of IL-17A+ Vγ4+ γδ T cells, effectively resolving IL-17A-dependent inflammation. Inhibiting mitochondrial translation could be a novel metabolic approach to interrupt IL-17A signaling in Vγ4+ T cells and reduce psoriasis-like skin pathophysiology.
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Affiliation(s)
- Ayesha Dhillon-LaBrooy
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes University Gutenberg, Mainz, Germany
| | - Kathrin L Braband
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes University Gutenberg, Mainz, Germany
| | - Eshraq Tantawy
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes University Gutenberg, Mainz, Germany
| | - Francesca Rampoldi
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes University Gutenberg, Mainz, Germany
| | - Yu-San Kao
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes University Gutenberg, Mainz, Germany
| | - Fatima Boukhallouk
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes University Gutenberg, Mainz, Germany
| | - Lis Noelia Velasquez
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes University Gutenberg, Mainz, Germany
| | - Panagiota Mamareli
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes University Gutenberg, Mainz, Germany
| | - Luana Silva
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes University Gutenberg, Mainz, Germany
| | - Luis Eduardo Alves Damasceno
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes University Gutenberg, Mainz, Germany; Center for Research in Inflammatory Diseases (CRID), Department of Pharmacology, Ribeirao Preto Medical School, University of Sao Paulo, São Paulo, Brazil
| | - Beate Weidenthaler-Barth
- Department of Dermatology, University Medical Center of the Johannes University Gutenberg, Mainz, Germany
| | - Luciana Berod
- Institute of Molecular Medicine, University Medical Center of the Johannes University Gutenberg, Mainz, Germany; Research Center for Immunotherapy, University Medical Centre of the Johannes University Gutenberg, Mainz, Germany
| | - Luís Almeida
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes University Gutenberg, Mainz, Germany
| | - Tim Sparwasser
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes University Gutenberg, Mainz, Germany; Research Center for Immunotherapy, University Medical Centre of the Johannes University Gutenberg, Mainz, Germany.
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Tian LY, Smit DJ, Popova NV, Horn S, Velasquez LN, Huber S, Jücker M. All Three AKT Isoforms Can Upregulate Oxygen Metabolism and Lactate Production in Human Hepatocellular Carcinoma Cell Lines. Int J Mol Sci 2024; 25:2168. [PMID: 38396845 PMCID: PMC10889766 DOI: 10.3390/ijms25042168] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Hepatocellular carcinoma (HCC), the main pathological type of liver cancer, is related to risk factors such as viral hepatitis, alcohol intake, and non-alcoholic fatty liver disease (NAFLD). The constitutive activation of the PI3K/AKT signaling pathway is common in HCC and has essential involvement in tumor progression. The serine/threonine kinase AKT has several downstream substrates, which have been implicated in the regulation of cellular metabolism. However, the contribution of each of the three AKT isoforms, i.e., AKT1, AKT2 and AKT3, to HCC metabolism has not been comprehensively investigated. In this study, we analyzed the functional role of AKT1, AKT2 and AKT3 in HCC metabolism. The overexpression of activated AKT1, AKT2 and AKT3 isoforms in the human HCC cell lines Hep3B and Huh7 resulted in higher oxygen consumption rate (OCR), ATP production, maximal respiration and spare respiratory capacity in comparison to vector-transduced cells. Vice versa, lentiviral vector-mediated knockdowns of each AKT isoform reduced OCR in both cell lines. Reduced OCR rates observed in the three AKT isoform knockdowns were associated with reduced extracellular acidification rates (ECAR) and reduced lactate production in both analyzed cell lines. Mechanistically, the downregulation of OCR by AKT isoform knockdowns correlated with an increased phosphorylation of the pyruvate dehydrogenase on Ser232, which negatively regulates the activity of this crucial gatekeeper of mitochondrial respiration. In summary, our data indicate that each of the three AKT isoforms is able to upregulate OCR, ECAR and lactate production independently of each other in human HCC cells through the regulation of the pyruvate dehydrogenase.
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Affiliation(s)
- Ling-Yu Tian
- Institute of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany; (L.-Y.T.); (D.J.S.); (N.V.P.)
- Beijing Key Surgical Basic Research Laboratory of Liver Cirrhosis and Liver Cancer, Department of Hepatobiliary Surgery, Peking University People’s Hospital, Beijing 100044, China
| | - Daniel J. Smit
- Institute of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany; (L.-Y.T.); (D.J.S.); (N.V.P.)
| | - Nadezhda V. Popova
- Institute of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany; (L.-Y.T.); (D.J.S.); (N.V.P.)
| | - Stefan Horn
- Research Department Cell and Gene Therapy, Department of Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany;
| | - Lis Noelia Velasquez
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (L.N.V.); (S.H.)
- Hamburg Center for Translational Immunology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Samuel Huber
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; (L.N.V.); (S.H.)
- Hamburg Center for Translational Immunology, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Manfred Jücker
- Institute of Biochemistry and Signal Transduction, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany; (L.-Y.T.); (D.J.S.); (N.V.P.)
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Kao YS, Mamareli P, Dhillon-LaBrooy A, Stüve P, Godoy GJ, Velasquez LN, Raker VK, Weidenthaler-Barth B, Boukhallouk F, Rampoldi F, Berod L, Sparwasser T. Targeting ACC1 in T cells ameliorates psoriatic skin inflammation. J Mol Med (Berl) 2023; 101:1153-1166. [PMID: 37594540 PMCID: PMC10482807 DOI: 10.1007/s00109-023-02349-w] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 06/14/2023] [Accepted: 07/03/2023] [Indexed: 08/19/2023]
Abstract
Psoriasis is a chronic inflammatory skin disease driven by the IL-23/IL-17 axis. It results from excessive activation of effector T cells, including T helper (Th) and cytotoxic T (Tc) cells, and is associated with dysfunctional regulatory T cells (Tregs). Acetyl-CoA carboxylase 1 (ACC1), a rate-limiting enzyme of fatty acid synthesis (FAS), directs cell fate decisions between Th17 and Tregs and thus could be a promising therapeutic target for psoriasis treatment. Here, we demonstrate that targeting ACC1 in T cells by genetic ablation ameliorates skin inflammation in an experimental model of psoriasis by limiting Th17, Tc17, Th1, and Tc1 cells in skin lesions and increasing the frequency of effector Tregs in skin-draining lymph nodes (LNs). KEY MESSAGES : ACC1 deficiency in T cells ameliorates psoriatic skin inflammation in mice. ACC1 deficiency in T cells reduces IL-17A-producing Th17/Tc17/dysfunctional Treg populations in psoriatic lesions. ACC1 deficiency in T cells restrains IFN-γ-producing Th1/Tc1 populations in psoriatic skin lesions and skin-draining LNs. ACC1 deficiency promotes activated CD44+CD25+ Tregs and effector CD62L-CD44+ Tregs under homeostasis and psoriatic conditions.
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Affiliation(s)
- Yu-San Kao
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Panagiota Mamareli
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Ayesha Dhillon-LaBrooy
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Philipp Stüve
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Leibniz Institute for Immunotherapy, University Regensburg, 93053, Regensburg, Germany
- Chair for Immunology, University Regensburg, 93053, Regensburg, Germany
| | - Gloria Janet Godoy
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Lis Noelia Velasquez
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Verena Katharina Raker
- Department of Dermatology, University Hospital, Westfälische Wilhelms-University Münster, Münster, Germany
| | - Beate Weidenthaler-Barth
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Fatima Boukhallouk
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Francesca Rampoldi
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Research Center for Immunotherapy (FZI), University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Luciana Berod
- Institute of Molecular Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Research Center for Immunotherapy (FZI), University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Tim Sparwasser
- Institute of Medical Microbiology and Hygiene, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.
- Research Center for Immunotherapy (FZI), University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany.
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Minarrieta L, Velasquez LN, Sparwasser T, Berod L. Dendritic cell metabolism: moving beyond in vitro-culture-generated paradigms. Curr Opin Biotechnol 2021; 68:202-212. [PMID: 33517147 DOI: 10.1016/j.copbio.2020.12.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 11/25/2020] [Accepted: 12/14/2020] [Indexed: 12/14/2022]
Abstract
Dendritic cells (DCs) are key orchestrators of immunity and tolerance. It has become evident that DC function can be influenced by cellular metabolic programs. However, conclusions from early metabolic studies using in vitro GM-CSF DC cultures fail to correlate with bona fide DC populations. Here, we discuss the existing paradigms in the DC metabolism field, focusing on the limitations of the models utilized. Furthermore, we introduce alternative models to generate DCs in vitro that better emulate DCs found in vivo. Finally, we highlight new techniques to evaluate DC metabolism at the single-cell level. The combination of these two strategies could help advance the DC metabolism field towards a more physiological understanding, which is crucial for the development of effective DC-based therapies.
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Affiliation(s)
- Lucía Minarrieta
- Ottawa Institute of Systems Biology, Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, K1H 8M5, Canada
| | - Lis Noelia Velasquez
- Institute of Medical Microbiology and Hygiene, University Medical Centre of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Tim Sparwasser
- Institute of Medical Microbiology and Hygiene, University Medical Centre of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Luciana Berod
- Institute of Molecular Medicine, University Medical Centre of the Johannes Gutenberg-University Mainz, Mainz, Germany.
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Velasquez LN, Stüve P, Gentilini MV, Swallow M, Bartel J, Lycke NY, Barkan D, Martina M, Lujan HD, Kalay H, van Kooyk Y, Sparwasser TD, Berod L. Targeting Mycobacterium tuberculosis Antigens to Dendritic Cells via the DC-Specific-ICAM3-Grabbing-Nonintegrin Receptor Induces Strong T-Helper 1 Immune Responses. Front Immunol 2018; 9:471. [PMID: 29662482 PMCID: PMC5890140 DOI: 10.3389/fimmu.2018.00471] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 02/21/2018] [Indexed: 12/19/2022] Open
Abstract
Tuberculosis remains a major global health problem and efforts to develop a more effective vaccine have been unsuccessful so far. Targeting antigens (Ags) to dendritic cells (DCs) in vivo has emerged as a new promising vaccine strategy. In this approach, Ags are delivered directly to DCs via antibodies that bind to endocytic cell-surface receptors. Here, we explored DC-specific-ICAM3-grabbing-nonintegrin (DC-SIGN) targeting as a potential vaccine against tuberculosis. For this, we made use of the hSIGN mouse model that expresses human DC-SIGN under the control of the murine CD11c promoter. We show that in vitro and in vivo delivery of anti-DC-SIGN antibodies conjugated to Ag85B and peptide 25 of Ag85B in combination with anti-CD40, the fungal cell wall component zymosan, and the cholera toxin-derived fusion protein CTA1-DD induces strong Ag-specific CD4+ T-cell responses. Improved anti-mycobacterial immunity was accompanied by increased frequencies of Ag-specific IFN-γ+ IL-2+ TNF-α+ polyfunctional CD4+ T cells in vaccinated mice compared with controls. Taken together, in this study we provide the proof of concept that the human DC-SIGN receptor can be efficiently exploited for vaccine purposes to promote immunity against mycobacterial infections.
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Affiliation(s)
- Lis Noelia Velasquez
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture between the Medical School Hannover (MHH) and the Helmholtz Centre for Infection Research (HZI), Hannover, Germany
| | - Philipp Stüve
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture between the Medical School Hannover (MHH) and the Helmholtz Centre for Infection Research (HZI), Hannover, Germany
| | - Maria Virginia Gentilini
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture between the Medical School Hannover (MHH) and the Helmholtz Centre for Infection Research (HZI), Hannover, Germany
| | - Maxine Swallow
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture between the Medical School Hannover (MHH) and the Helmholtz Centre for Infection Research (HZI), Hannover, Germany
| | - Judith Bartel
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture between the Medical School Hannover (MHH) and the Helmholtz Centre for Infection Research (HZI), Hannover, Germany
| | - Nils Yngve Lycke
- Mucosal Immunobiology and Vaccine Center (MIVAC), Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Daniel Barkan
- Koret School of Veterinary Medicine, Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
| | - Mariana Martina
- Laboratory of Biochemistry and Molecular Biology, School of Medicine, Catholic University of Córdoba, Córdoba, Argentina
| | - Hugo D Lujan
- Laboratory of Biochemistry and Molecular Biology, School of Medicine, Catholic University of Córdoba, Córdoba, Argentina
| | - Hakan Kalay
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, Netherlands
| | - Yvette van Kooyk
- Department of Molecular Cell Biology and Immunology, VU University Medical Center, Amsterdam, Netherlands
| | - Tim D Sparwasser
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture between the Medical School Hannover (MHH) and the Helmholtz Centre for Infection Research (HZI), Hannover, Germany
| | - Luciana Berod
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture between the Medical School Hannover (MHH) and the Helmholtz Centre for Infection Research (HZI), Hannover, Germany
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