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Matuszewska J, Krawiec A, Radziemski A, Uruski P, Tykarski A, Mikuła-Pietrasik J, Książek K. Alterations of receptors and insulin-like growth factor binding proteins in senescent cells. Eur J Cell Biol 2024; 103:151438. [PMID: 38945074 DOI: 10.1016/j.ejcb.2024.151438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 06/24/2024] [Accepted: 06/25/2024] [Indexed: 07/02/2024] Open
Abstract
The knowledge about cellular senescence expands dynamically, providing more and more conclusive evidence of its triggers, mechanisms, and consequences. Senescence-associated secretory phenotype (SASP), one of the most important functional traits of senescent cells, is responsible for a large extent of their context-dependent activity. Both SASP's components and signaling pathways are well-defined. A literature review shows, however, that a relatively underinvestigated aspect of senescent cell autocrine and paracrine activity is the change in the production of proteins responsible for the reception and transmission of SASP signals, i.e., receptors and binding proteins. For this reason, we present in this article the current state of knowledge regarding senescence-associated changes in cellular receptors and insulin-like growth factor binding proteins. We also discuss the role of these alterations in senescence induction and maintenance, pro-cancerogenic effects of senescent cells, and aging-related structural and functional malfunctions.
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Affiliation(s)
- Julia Matuszewska
- Poznan University of Medical Sciences, Department of Pathophysiology of Ageing and Civilization Diseases, Święcickiego 4 Str., Poznań 60-781, Poland
| | - Adrianna Krawiec
- Poznan University of Medical Sciences, Department of Pathophysiology of Ageing and Civilization Diseases, Święcickiego 4 Str., Poznań 60-781, Poland
| | - Artur Radziemski
- Poznan University of Medical Sciences, Department of Hypertensiology, Długa 1/2 Str., Poznań 61-848, Poland
| | - Paweł Uruski
- Poznan University of Medical Sciences, Department of Hypertensiology, Długa 1/2 Str., Poznań 61-848, Poland
| | - Andrzej Tykarski
- Poznan University of Medical Sciences, Department of Hypertensiology, Długa 1/2 Str., Poznań 61-848, Poland
| | - Justyna Mikuła-Pietrasik
- Poznan University of Medical Sciences, Department of Pathophysiology of Ageing and Civilization Diseases, Święcickiego 4 Str., Poznań 60-781, Poland
| | - Krzysztof Książek
- Poznan University of Medical Sciences, Department of Pathophysiology of Ageing and Civilization Diseases, Święcickiego 4 Str., Poznań 60-781, Poland.
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2
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Duval C, Bourreau E, Warrick E, Bastien P, Nouveau S, Bernerd F. A chronic pro-inflammatory environment contributes to the physiopathology of actinic lentigines. Sci Rep 2024; 14:5256. [PMID: 38438410 PMCID: PMC10912228 DOI: 10.1038/s41598-024-53990-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 02/07/2024] [Indexed: 03/06/2024] Open
Abstract
Actinic lentigines (AL) or age spots, are skin hyperpigmented lesions associated with age and chronic sun exposure. To better understand the physiopathology of AL, we have characterized the inflammation response in AL of European and Japanese volunteers. Gene expression profile showed that in both populations, 10% of the modulated genes in AL versus adjacent non lesional skin (NL), i.e. 31 genes, are associated with inflammation/immune process. A pro-inflammatory environment in AL is strongly suggested by the activation of the arachidonic acid cascade and the plasmin pathway leading to prostaglandin production, along with the decrease of anti-inflammatory cytokines and the identification of inflammatory upstream regulators. Furthermore, in line with the over-expression of genes associated with the recruitment and activation of immune cells, immunostaining on skin sections revealed a significant infiltration of CD68+ macrophages and CD4+ T-cells in the dermis of AL. Strikingly, investigation of infiltrated macrophage subsets evidenced a significant increase of pro-inflammatory CD80+/CD68+ M1 macrophages in AL compared to NL. In conclusion, a chronic inflammation, sustained by pro-inflammatory mediators and infiltration of immune cells, particularly pro-inflammatory M1 macrophages, takes place in AL. This pro-inflammatory loop should be thus broken to normalize skin and improve the efficacy of age spot treatment.
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Affiliation(s)
| | | | - Emilie Warrick
- L'Oréal Research and Innovation, Aulnay Sous Bois, France
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3
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Ma T, Suryawanshi RK, Miller SR, Ly KK, Thomas R, Elphick N, Yin K, Luo X, Kaliss N, Chen IP, Montano M, Sreekumar B, Standker L, Münch J, Heath Damron F, Palop JJ, Ott M, Roan NR. Post-acute immunological and behavioral sequelae in mice after Omicron infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.05.543758. [PMID: 37333294 PMCID: PMC10274741 DOI: 10.1101/2023.06.05.543758] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Progress in understanding long COVID and developing effective therapeutics is hampered in part by the lack of suitable animal models. Here we used ACE2-transgenic mice recovered from Omicron (BA.1) infection to test for pulmonary and behavioral post-acute sequelae. Through in-depth phenotyping by CyTOF, we demonstrate that naïve mice experiencing a first Omicron infection exhibit profound immune perturbations in the lung after resolving acute infection. This is not observed if mice were first vaccinated with spike-encoding mRNA. The protective effects of vaccination against post-acute sequelae were associated with a highly polyfunctional SARS-CoV-2-specific T cell response that was recalled upon BA.1 breakthrough infection but not seen with BA.1 infection alone. Without vaccination, the chemokine receptor CXCR4 was uniquely upregulated on multiple pulmonary immune subsets in the BA.1 convalescent mice, a process previously connected to severe COVID-19. Taking advantage of recent developments in machine learning and computer vision, we demonstrate that BA.1 convalescent mice exhibited spontaneous behavioral changes, emotional alterations, and cognitive-related deficits in context habituation. Collectively, our data identify immunological and behavioral post-acute sequelae after Omicron infection and uncover a protective effect of vaccination against post-acute pulmonary immune perturbations.
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Affiliation(s)
- Tongcui Ma
- Gladstone Institutes of Virology, San Francisco, CA, USA
- Department of Urology, University of California, San Francisco, San Francisco, United States
| | | | - Stephanie R. Miller
- Gladstone Institute of Neurological Disease, San Francisco, CA 94158, USA
- Department of Neurology, University of California, San Francisco, CA 94158, USA
| | - Katie K. Ly
- Gladstone Institute of Neurological Disease, San Francisco, CA 94158, USA
- Department of Neurology, University of California, San Francisco, CA 94158, USA
| | - Reuben Thomas
- Gladstone Institute of Data Science and Biotechnology, San Francisco, CA, USA
| | - Natalie Elphick
- Gladstone Institute of Data Science and Biotechnology, San Francisco, CA, USA
| | - Kailin Yin
- Gladstone Institutes of Virology, San Francisco, CA, USA
- Department of Urology, University of California, San Francisco, San Francisco, United States
| | - Xiaoyu Luo
- Gladstone Institutes of Virology, San Francisco, CA, USA
- Department of Urology, University of California, San Francisco, San Francisco, United States
| | - Nick Kaliss
- Gladstone Institute of Neurological Disease, San Francisco, CA 94158, USA
- Department of Neurology, University of California, San Francisco, CA 94158, USA
| | - Irene P Chen
- Gladstone Institutes of Virology, San Francisco, CA, USA
- Biomedical Sciences Graduate Program, University of California San Francisco; San Francisco, CA, USA
- Department of Medicine, University of California San Francisco; San Francisco, CA, USA
- Core Facility Functional Peptidomics, Ulm University Medical Center, Meyerhofstrasse 1, Ulm, Germany
| | | | | | - Ludger Standker
- Core Facility Functional Peptidomics, Ulm University Medical Center, Meyerhofstrasse 1, Ulm, Germany
| | - Jan Münch
- Core Facility Functional Peptidomics, Ulm University Medical Center, Meyerhofstrasse 1, Ulm, Germany
| | - F. Heath Damron
- Department of Microbiology, Immunology and Cell Biology, West Virginia University School of Medicine, Morgantown WV, USA
| | - Jorge J. Palop
- Gladstone Institute of Neurological Disease, San Francisco, CA 94158, USA
- Department of Neurology, University of California, San Francisco, CA 94158, USA
| | - Melanie Ott
- Gladstone Institutes of Virology, San Francisco, CA, USA
- Department of Medicine, University of California San Francisco; San Francisco, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
| | - Nadia R. Roan
- Gladstone Institutes of Virology, San Francisco, CA, USA
- Department of Urology, University of California, San Francisco, San Francisco, United States
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4
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Linterman MA. Age-dependent changes in T follicular helper cells shape the humoral immune response to vaccination. Semin Immunol 2023; 69:101801. [PMID: 37379670 DOI: 10.1016/j.smim.2023.101801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 06/21/2023] [Indexed: 06/30/2023]
Abstract
Vaccination is an excellent strategy to limit the morbidity and mortality associated with infectious disease. Vaccination creates protective, long-lived antibody-mediated immunity by inducing the germinal centre response, an intricate immune reaction that produces memory B cells and long-lived antibody-secreting plasma cells that provide protection against (re)infection. The magnitude and quality of the germinal centre response declines with age, contributing to poor vaccine-induced immunity in older individuals. T follicular helper cells are essential for the formation and function of the germinal centre response. This review will discuss how age-dependent changes in T follicular helper cells influence the germinal centre response, and the evidence that age-dependent changes need not be a barrier to successful vaccination in the later years of life.
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Affiliation(s)
- Michelle A Linterman
- Babraham Institute, Babraham Research Campus, Cambridge CB22 3AT, United Kingdom.
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5
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Silva-Cayetano A, Fra-Bido S, Robert PA, Innocentin S, Burton AR, Watson EM, Lee JL, Webb LMC, Foster WS, McKenzie RCJ, Bignon A, Vanderleyden I, Alterauge D, Lemos JP, Carr EJ, Hill DL, Cinti I, Balabanian K, Baumjohann D, Espeli M, Meyer-Hermann M, Denton AE, Linterman MA. Spatial dysregulation of T follicular helper cells impairs vaccine responses in aging. Nat Immunol 2023; 24:1124-1137. [PMID: 37217705 PMCID: PMC10307630 DOI: 10.1038/s41590-023-01519-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 04/19/2023] [Indexed: 05/24/2023]
Abstract
The magnitude and quality of the germinal center (GC) response decline with age, resulting in poor vaccine-induced immunity in older individuals. A functional GC requires the co-ordination of multiple cell types across time and space, in particular across its two functionally distinct compartments: the light and dark zones. In aged mice, there is CXCR4-mediated mislocalization of T follicular helper (TFH) cells to the dark zone and a compressed network of follicular dendritic cells (FDCs) in the light zone. Here we show that TFH cell localization is critical for the quality of the antibody response and for the expansion of the FDC network upon immunization. The smaller GC and compressed FDC network in aged mice were corrected by provision of TFH cells that colocalize with FDCs using CXCR5. This demonstrates that the age-dependent defects in the GC response are reversible and shows that TFH cells support stromal cell responses to vaccines.
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Affiliation(s)
| | | | - Philippe A Robert
- Department of Systems Immunology and Braunschweig Integrated Centre of Systems Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
- Translational Immunology, Department of Biomedicine, University of Basel, Basel, Switzerland
| | | | | | | | - Jia Le Lee
- Immunology Program, Babraham Institute, Cambridge, UK
| | | | | | | | | | | | - Dominik Alterauge
- Institute for Immunology, Faculty of Medicine, Biomedical Center, LMU Munich, Munich, Germany
| | - Julia P Lemos
- Université Paris Cité, Institut de Recherche Saint Louis, EMiLy, INSERM U1160, Paris, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
- Sorbonne Université, INSERM, Institut de Myologie, Centre de Recherche en Myologie, Paris, France
| | - Edward J Carr
- Immunology Program, Babraham Institute, Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
- The Francis Crick Institute, London, UK
| | - Danika L Hill
- Immunology Program, Babraham Institute, Cambridge, UK
- Department of Immunology and Pathology, Monash University, Melbourne, Victoria, Australia
| | - Isabella Cinti
- Department of Immunology and Inflammation, Imperial College London, London, UK
| | - Karl Balabanian
- Université Paris Cité, Institut de Recherche Saint Louis, EMiLy, INSERM U1160, Paris, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
| | - Dirk Baumjohann
- Institute for Immunology, Faculty of Medicine, Biomedical Center, LMU Munich, Munich, Germany
- Medical Clinic III for Oncology, Hematology, Immuno-Oncology and Rheumatology, University Hospital Bonn, University of Bonn, Bonn, Germany
| | - Marion Espeli
- Université Paris Cité, Institut de Recherche Saint Louis, EMiLy, INSERM U1160, Paris, France
- OPALE Carnot Institute, The Organization for Partnerships in Leukemia, Hôpital Saint-Louis, Paris, France
| | - Michael Meyer-Hermann
- Department of Systems Immunology and Braunschweig Integrated Centre of Systems Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
- Institute for Biochemistry, Biotechnology and Bioinformatics, Technische Universität Braunschweig, Braunschweig, Germany
| | - Alice E Denton
- Department of Immunology and Inflammation, Imperial College London, London, UK
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6
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Guilhem A, Portalès P, Dupuis-Girod S, Rivière S, Vincent T. Altered expressions of CXCR4 and CD26 on T-helper lymphocytes in hereditary hemorrhagic telangiectasia. Orphanet J Rare Dis 2021; 16:511. [PMID: 34906163 PMCID: PMC8670161 DOI: 10.1186/s13023-021-02139-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 11/28/2021] [Indexed: 11/10/2022] Open
Abstract
Background Hereditary hemorrhagic telangiectasia (HHT) is a rare genetic disease characterized by a deregulated neo-angiogenesis. Besides a mainly vascular phenotype (muco-cutaneous telangiectases, arteriovenous malformations), a specific risk of infection is suggested by case series of severe and atypical infections as well as by reports of decreased T and natural killer (NK) lymphocyte counts. As some evidence supports a dysregulation of the CXCR4/CXCL12 chemotactic axis of HHT endothelial cells, we hypothesized that a similar phenomenon could occur on lymphocytes. Methods Eighteen HHT patients with history of severe infection (HSI) were matched in age and sex with 18 HHT without HSI and 18 healthy control subjects (HC). We assessed the cell count and the surface expression of CXCR4 and CD26 (CXCL12 inactivating peptidase) of circulating T-helper and T-cytotoxic lymphocytes (including naive, memory and activated subsets) and NK cells. Results The overall HHT group of 36 patients exhibited a reduction of circulating T-helper lymphocytes compared to HC (median: 517 vs. 1026 cells/mm3, p < 0.0001), correlated with age (r = − 0.46, p = 0.005), requirement of intravenous iron or blood transfusions (median: 291 vs. 627 cells/mm3, p = 0.03) and CXCR4 surface expression (r = 0.353, p = 0.0345). CXCR4 and CD26 membrane expression were both decreased on HHT T-helper lymphocytes (median MFI ratio: 4.49 vs. 5.74 for CXCR4 and 3.21 vs. 4.33 for CD26, p = 0.03 and 0.0018 respectively) with an unchanged CXCR4/CD26 ratio. The HHT group with HSI had a higher CXCR4/CD26 ratio on the total T-lymphocyte population, as well as on the T-helper population and its naive subset (median on naive T-helper cells: 2.34 vs. 1.32, p = 0.0002). Conclusions Our findings support a dysregulation of the CXCL12/CXCR4 chemotaxis of T-helper lymphocytes in HHT patients, potentially linked to their T-helper lymphopenia and susceptibility to infection. Supplementary Information The online version contains supplementary material available at 10.1186/s13023-021-02139-y.
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Affiliation(s)
- Alexandre Guilhem
- CHU de Montpellier, Médecine interne et maladies multi-organiques de l'adulte, Hôpital Saint Eloi, Montpellier, France.
| | - Pierre Portalès
- CHU de Montpellier, Laboratoire d'immunologie, Hôpital Saint Eloi, Montpellier, France
| | - Sophie Dupuis-Girod
- Centre National de référence Maladie de Rendu-Osler, Service de génétique Hôpital Mère-Enfant, Hospices Civils de Lyon, Bron, France
| | - Sophie Rivière
- CHU de Montpellier, Médecine interne et maladies multi-organiques de l'adulte, Hôpital Saint Eloi, Montpellier, France
| | - Thierry Vincent
- CHU de Montpellier, Laboratoire d'immunologie, Hôpital Saint Eloi, Montpellier, France
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Yamada C, Ho A, Akkaoui J, Garcia C, Duarte C, Movila A. Glycyrrhizin mitigates inflammatory bone loss and promotes expression of senescence-protective sirtuins in an aging mouse model of periprosthetic osteolysis. Biomed Pharmacother 2021; 138:111503. [PMID: 33770668 PMCID: PMC8653540 DOI: 10.1016/j.biopha.2021.111503] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 03/08/2021] [Accepted: 03/11/2021] [Indexed: 01/02/2023] Open
Abstract
Although periprosthetic osteolysis induced by wear debris particles is significantly elevated in senior (65+ years old) patients, most of the published pre-clinical studies were performed using young (less than three-month old) mice indicating the critical need to employ experimental models of particle-induced osteolysis involving mice with advanced age. Emerging evidence indicates that currently available antiresorptive bone therapies have serious age-dependent side effects. However, a resurgence of healthcare interest has occurred in glycyrrhizin (GLY), a natural extract from the licorice roots, as alternative sources of drugs for treating inflammatory bone lytic diseases and prevention of cellular senescence. This study investigated the effects of GLY on inflammatory bone loss as well as expression patterns of senescence-associated secretory phenotype and senescence-protective markers using an experimental calvarium osteolytic model induced in aged (twenty-four-month-old) mice by polymethylmethacrylate (PMMA) particles. Our results indicate that local treatment with GLY significantly diminished the size of inflammatory osteolytic lesions in aged mice via the number of CXCR4+OCPs and Tartrate-resistant acid phosphatase positive (TRAP+) osteoclasts. Furthermore, GLY dramatically decreased the amounts of senescence-associated secretory phenotype markers, including pro-inflammatory macrophage migration inhibitory factor (MIF) chemokine, and cathepsins B and K in the bone lesions of aged mice. By contrast, GLY significantly elevated expression patterns of senescence-protective markers, including homeostatic stromal derived factor-1 (SDF-1) chemokine, and sirtuin-1, and sirtuin-6, in the PMMA particle-induced calvarial lesions of aged mice. Collectively, these data suggest that GLY can be used for the development of novel therapies to control bone loss and tissue aging in senior patients with periprosthetic osteolysis.
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Affiliation(s)
- Chiaki Yamada
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, United States
| | - Anny Ho
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, United States
| | - Juliet Akkaoui
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, United States
| | - Christopher Garcia
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, United States
| | - Carolina Duarte
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, United States
| | - Alexandru Movila
- Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL 33314, United States.
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8
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Dysregulation of leukocyte trafficking in ageing: Causal factors and possible corrective therapies. Pharmacol Res 2020; 163:105323. [PMID: 33276099 DOI: 10.1016/j.phrs.2020.105323] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/24/2020] [Accepted: 11/27/2020] [Indexed: 02/07/2023]
Abstract
Ageing is a universal biological phenomenon that is accompanied by the development of chronic, low-grade inflammation and remodelling of the immune system resulting in compromised immune function. In this review, we explore how the trafficking of innate and adaptive immune cells under homeostatic and inflammatory conditions is dysregulated in ageing. We particularly highlight the age-related changes in the expression of adhesion molecules and chemokine receptor/ligands, and the accumulation of senescent cells that drive modulated leukocyte trafficking. These age-related changes to leukocyte trafficking are multifactorial and specific to leukocyte subset, tissue, type of vascular bed, and inflammatory status. However, dysregulated leukocyte trafficking ultimately affects immune responses in older adults. We therefore go on to discuss approved drugs, including anti-integrins, anti-chemokines and statins, as well as novel therapeutics that may be used to target dysregulated leukocyte trafficking in ageing, improve immune responses and delay the onset of age-related diseases.
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9
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Piconese S, Campello S, Natalini A. Recirculation and Residency of T Cells and Tregs: Lessons Learnt in Anacapri. Front Immunol 2020; 11:682. [PMID: 32431695 PMCID: PMC7214633 DOI: 10.3389/fimmu.2020.00682] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 03/26/2020] [Indexed: 02/01/2023] Open
Abstract
"Location, location, and location": according to this mantra, the place where living beings settle has a key impact on the success of their activities; in turn, the living beings can, in many ways, modify their environment. This idea has now become more and more true for T cells. The ability of T cells to recirculate throughout blood or lymph, or to stably reside in certain tissues, turned out to determine immunity to pathogens, and tumors. If location matters also for human beings, the inspiring environment of Capri Island has contributed to the success of the EFIS-EJI Ruggero Ceppellini Advanced School of Immunology focused on "T cell memory," held in Anacapri from October 12, 2018 to October 15, 2018. In this minireview, we would like to highlight some novel concepts about T cell migration and residency and discuss their implications in relation to recent advances in the field, including the mechanisms regulating compartmentalization and cell cycle entry of T cells during activation, the role of mitochondrial metabolism in T cell movement, and the residency of regulatory T cells.
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Affiliation(s)
- Silvia Piconese
- Dipartimento di Scienze Cliniche Internistiche, Anestesiologiche e Cardiovascolari, Sapienza Università di Roma, Rome, Italy.,Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Silvia Campello
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Ambra Natalini
- Institute of Molecular Biology and Pathology, National Research Council (CNR), Rome, Italy.,Dipartimento di Medicina Molecolare (DMM), Sapienza Università di Roma, Rome, Italy
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10
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Daniel SK, Seo YD, Pillarisetty VG. The CXCL12-CXCR4/CXCR7 axis as a mechanism of immune resistance in gastrointestinal malignancies. Semin Cancer Biol 2019; 65:176-188. [PMID: 31874281 DOI: 10.1016/j.semcancer.2019.12.007] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 12/03/2019] [Accepted: 12/11/2019] [Indexed: 02/07/2023]
Abstract
Single agent checkpoint inhibitor therapy has not been effective for most gastrointestinal solid tumors, but combination therapy with drugs targeting additional immunosuppressive pathways is being attempted. One such pathway, the CXCL12-CXCR4/CXCR7 chemokine axis, has attracted attention due to its effects on tumor cell survival and metastasis as well as immune cell migration. CXCL12 is a small protein that functions in normal hematopoietic stem cell homing in addition to repair of damaged tissue. Binding of CXCL12 to CXCR4 leads to activation of G protein signaling kinases such as P13K/mTOR and MEK/ERK while binding to CXCR7 leads to β-arrestin mediated signaling. While some gastric and colorectal carcinoma cells have been shown to make CXCL12, the primary source in pancreatic cancer and peritoneal metastases is cancer-associated fibroblasts. Binding of CXCL12 to CXCR4 and CXCR7 on tumor cells leads to anti-apoptotic signaling through Bcl-2 and survivin upregulation, as well as promotion of the epithelial-to-mesechymal transition through the Rho-ROCK pathway and alterations in cell adhesion molecules. High levels of CXCL12 seen in the bone marrow, liver, and spleen could partially explain why these are popular sites of metastases for many tumors. CXCL12 is a chemoattractant for lymphocytes at lower levels, but becomes chemorepellant at higher levels; it is unclear exactly what gradient exists in the tumor microenvironment and how this influences tumor-infiltrating lymphocytes. AMD3100 (Plerixafor or Mozobil) is a small molecule CXCR4 antagonist and is the most frequently used drug targeting the CXCL12-CXCR4/CXCR7 axis in clinical trials for gastrointestinal solid tumors currently. Other small molecules and monoclonal antibodies against CXCR4 are being trialed. Further understanding of the CXCL12- CXCR4/CXCR7 chemokine axis in the tumor microenvironment will allow more effective targeting of this pathway in combination immunotherapy.
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Affiliation(s)
- Sara K Daniel
- University of Washington, Dept. of Surgery, Seattle, WA, USA
| | - Y David Seo
- University of Washington, Dept. of Surgery, Seattle, WA, USA
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11
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Kalathookunnel Antony A, Lian Z, Wu H. T Cells in Adipose Tissue in Aging. Front Immunol 2018; 9:2945. [PMID: 30619305 PMCID: PMC6299975 DOI: 10.3389/fimmu.2018.02945] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 11/30/2018] [Indexed: 12/20/2022] Open
Abstract
Similar to obesity, aging is associated with visceral adiposity and insulin resistance. Inflammation in adipose tissue, mainly evidenced by increased accumulation and proinflammatory polarization of T cells and macrophages, has been well-documented in obesity and may contribute to the associated metabolic dysfunctions including insulin resistance. Studies show that increased inflammation, including inflammation in adipose tissue, also occurs in aging, so-called "inflamm-aging." Aging-associated inflammation in adipose tissue has some similarities but also differences compared to obesity-related inflammation. In particular, conventional T cells are elevated in adipose tissue in both obesity and aging and have been implicated in metabolic functions in obesity. However, the changes and also possibly functions of regulatory T cells (Treg) in adipose tissue are different in aging and obesity. In this review, we will summarize recent advances in research on the changes of these immune cells in adipose tissue with aging and obesity and discuss their possible contributions to metabolism and the potential of these immune cells as novel therapeutic targets for prevention and treatment of metabolic diseases associated with aging or obesity.
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Affiliation(s)
| | - Zeqin Lian
- Department of Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Huaizhu Wu
- Department of Medicine, Baylor College of Medicine, Houston, TX, United States.,Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
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12
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Neri M, Sansone L, Pietrasanta L, Kisialiou A, Cabano E, Martini M, Russo MA, Ugolini D, Tafani M, Bonassi S. Gene and protein expression of CXCR4 in adult and elderly patients with chronic rhinitis, pharyngitis or sinusitis undergoing thermal water nasal inhalations. IMMUNITY & AGEING 2018; 15:10. [PMID: 29497453 PMCID: PMC5828426 DOI: 10.1186/s12979-018-0114-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 02/06/2018] [Indexed: 01/01/2023]
Abstract
Background Chronic rhinitis, pharyngitis and sinusitis are common health problems with a significant impact on public health, and are suspected to be influenced by ageing factors. Nasal inhalation with thermal water may be used to reduce symptoms, inflammation and drug intake. A pre-post clinical study was conducted in 183 consecutive adult and elderly patients with chronic rhinitis, pharyngitis or sinusitis, to evaluate whether thermal water nasal inhalations could improve their symptoms, clinical signs and rhinomanometry measurements, and influence inflammatory biomarkers levels in nasal epithelial cells. Results Participants profile revealed that they were aged on average (mean age and SD 60.6 ± 15.2 years, median 65, range 20–86, 86 aged ≤ 65 years (47%), 96 aged > 65 years (53%)) and extremely concerned about wellbeing. Older age was associated with better compliance to inhalation treatment. Total symptom and clinical evaluation scores were significantly ameliorated after treatment (p < 0.001), with no substantial difference according to age, while rhinomanometry results were inconsistent. Persistence of symptom improvement was confirmed at phone follow up 1 year later (n = 74). The training set of 48 inflammatory genes (40 patients) revealed a strong increase of CXCR4 gene expression after nasal inhalations, confirmed both in the validation set (143 patients; 1.2 ± 0.68 vs 3.3 ± 1.2; p < 0.0001) and by evaluation of CXCR4 protein expression (40 patients; 1.0 ± 0.39 vs 2.6 ± 0.66; p < 0.0001). CXCR4 expression was consistently changed in patients with rhinitis, pharyngitis or sinusitis. The increase was smaller in current smokers compared to non-smokers. Results were substantially unchanged when comparing aged subjects (≥ 65 years) or the eldest quartile (≥ 71 years) to the others. Other genes showed weaker variations (e.g. FLT1 was reduced only in patients with sinusitis). Conclusions These results confirm the clinical impact of thermal water nasal inhalations on upper respiratory diseases both in adults and elders, and emphasize the role of genes activating tissue repair and inflammatory pathways. Future studies should evaluate CXCR4 as possible therapeutic target or response predictor in patients with chronic rhinitis, pharyngitis or sinusitis. Trial registration Communication to Italian Ministry of Health - ICPOM 000461. Registered 10/11/2014. Electronic supplementary material The online version of this article (10.1186/s12979-018-0114-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Monica Neri
- 1Unit of Clinical and Molecular Epidemiology, IRCCS San Raffaele Pisana, Via di Val Cannuta, 247, 00166 Rome, Italy
| | - Luigi Sansone
- 2Department of Cellular and Molecular Pathology, IRCCS San Raffaele Pisana, Rome, Italy.,3Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Luisa Pietrasanta
- Terme di Genova, Genoa, Italy.,Terme di Acqui, AcquiTerme (AL), Italy
| | - Aliaksei Kisialiou
- 1Unit of Clinical and Molecular Epidemiology, IRCCS San Raffaele Pisana, Via di Val Cannuta, 247, 00166 Rome, Italy
| | | | - Marina Martini
- Terme di Genova, Genoa, Italy.,Terme di Acqui, AcquiTerme (AL), Italy
| | | | | | - Marco Tafani
- 2Department of Cellular and Molecular Pathology, IRCCS San Raffaele Pisana, Rome, Italy.,3Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Stefano Bonassi
- 1Unit of Clinical and Molecular Epidemiology, IRCCS San Raffaele Pisana, Via di Val Cannuta, 247, 00166 Rome, Italy.,9Department of Human Sciences and Quality of Life Promotion, San Raffaele University, Rome, Italy
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13
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Xia Y, Tao H, Hu Y, Chen Q, Chen X, Xia L, Zhou L, Wang Y, Bao Y, Huang S, Ren X, Lundy SK, Dai F, Li Q, Chang AE. IL-2 augments the therapeutic efficacy of adoptively transferred B cells which directly kill tumor cells via the CXCR4/CXCL12 and perforin pathways. Oncotarget 2018; 7:60461-60474. [PMID: 27528023 PMCID: PMC5312396 DOI: 10.18632/oncotarget.11124] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 07/26/2016] [Indexed: 01/07/2023] Open
Abstract
We previously reported that antitumor B cells directly kill tumor cells via the Fas/FasL pathway and are regulated by IL-10. In this study, we defined additional mechanisms involved in B cell antitumor immunity. Administration of IL-2 significantly augmented the therapeutic efficacy of adoptively transferred tumor-draining lymph node (TDLN) B cells which express IL- 2R. Culture supernatant of purified B splenocytes harvested from the mice that received adoptive transfer of 4T1 TDLN B cells plus IL-2 administration produced larger amounts of IgG which bound to 4T1, resulting in 4T1 lysis. Furthermore, we detected CXCR4 expression on 4T1 TDLN B cells, and 4T1 tumor cells produced its ligand CXCL12. Transwell experiments demonstrated the chemoattraction of CXCR4-expressing 4T1 TDLN B cells towards CXCL12- producing 4T1 cells. Blockade of CXCR4 using a CXCR4-specific inhibitor, AMD3100, significantly reduced the killing of 4T1 tumor cells by 4T1 TDLN B cells. Blockade of FasL and CXCR4 concurrently inhibited B cell-mediated direct killing of tumor cells in an additive manner, indicating that both Fas/FasL and CXCL12/CXCR4 pathways are involved in the direct killing of 4T1 cells by 4T1 TDLN B cells. TDLN B cells produced perforin. Additional transwell experiments showed that effector B cells could directly kill tumor cells in cell-cell contact via the Fas/FasL and CXCR4/CXCL12 pathways as well as perforin, while without cell contact, perforin secreted by B cells led to tumor cell cytotoxicity. These findings underscore the diversity of function by which B cells can play an important role in the host immune response to tumor.
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Affiliation(s)
- Yang Xia
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA.,The No.1 People's Hospital of Hefei, Hefei, China
| | - Huimin Tao
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA.,Hubei Province Stem Cell Research & Appling Center, Wuhan Union Hospital, Wuhan, China.,Current address: Fuda Cancer Hospital, Jinan University School of Medicine and Fuda Cancer Institute, Guangzhou, China
| | - Yangyang Hu
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA.,Hubei Province Stem Cell Research & Appling Center, Wuhan Union Hospital, Wuhan, China
| | - Quanning Chen
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA.,Department of General Surgery, Tongji Hospital of Tongji University, Shanghai, China
| | - Xin Chen
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA.,Department of Oncology, Wuhan University, Renmin Hospital, Wuhan, China
| | - Leiming Xia
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA.,The No.1 People's Hospital of Hefei, Hefei, China
| | - Li Zhou
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA.,Department of Biotherapy, Tianjin University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key laboratory of Cancer Immunology and Biotherapy, Tianjin, China
| | - Yi Wang
- The No.1 People's Hospital of Hefei, Hefei, China
| | - Yangyi Bao
- The No.1 People's Hospital of Hefei, Hefei, China
| | - Shiang Huang
- Hubei Province Stem Cell Research & Appling Center, Wuhan Union Hospital, Wuhan, China
| | - Xiubao Ren
- Department of Biotherapy, Tianjin University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key laboratory of Cancer Immunology and Biotherapy, Tianjin, China
| | - Steven K Lundy
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Fu Dai
- The No.1 People's Hospital of Hefei, Hefei, China
| | - Qiao Li
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Alfred E Chang
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
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14
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Lear T, Dunn SR, McKelvey AC, Mir A, Evankovich J, Chen BB, Liu Y. RING finger protein 113A regulates C-X-C chemokine receptor type 4 stability and signaling. Am J Physiol Cell Physiol 2017; 313:C584-C592. [PMID: 28978524 DOI: 10.1152/ajpcell.00193.2017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/20/2017] [Accepted: 09/21/2017] [Indexed: 01/05/2023]
Abstract
As an α-chemokine receptor specific for stromal-derived-factor-1 (SDF-1, also called CXCL12), C-X-C chemokine receptor type 4 (CXCR4) plays a vital role in chemotactically attracting lymphocytes during inflammation. CXCR4 also regulates HIV infection due to its role as one of the chemokine coreceptors for HIV entry into CD4+ T cells. Chemokine receptors and their signaling pathways have been shown to be regulated by the process of ubiquitination, a posttranslational modification, guided by ubiquitin E3 ligases, which covalently links ubiquitin chains to lysine residues within target substrates. Here we describe a novel mechanism regulating CXCR4 protein levels and subsequent CXCR4/CXCL12 signaling pathway through the ubiquitination and degradation of the receptor in response to ligand stimulation. We identify that an uncharacterized really interesting new gene (RING) finger ubiquitin E3 ligase, RING finger protein 113A (RNF113A), directly ubiquitinates CXCR4 in cells, leading to CXCR4 degradation, and therefore disrupts the signaling cascade. We determined that the K331 residue within CXCR4 is essential for RNF113A-mediated ubiquitin conjugation. Overexpression of RNF113A significantly reduces CXCL12-induced kinase activation in HeLa cells, whereas RNF113A knockdown enhances CXCL12-induced downstream signaling. Further, RNF113A expression and silencing directly affect cell motility in a wound healing assay. These results suggest that RNF113A plays an important role in CXCR4 signaling through the ubiquitination and degradation of CXCR4. This mechanistic study might provide new understanding of HIV immunity and neutrophil activation and motility regulated by CXCR4.
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Affiliation(s)
- Travis Lear
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Environmental and Occupational Health, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Sarah R Dunn
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Alison C McKelvey
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Aazrin Mir
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - John Evankovich
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Bill B Chen
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania.,Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, Pennsylvania; and
| | - Yuan Liu
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania; .,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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15
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Immunophenotyping of rheumatoid arthritis reveals a linkage between HLA-DRB1 genotype, CXCR4 expression on memory CD4(+) T cells, and disease activity. Sci Rep 2016; 6:29338. [PMID: 27385284 PMCID: PMC4935954 DOI: 10.1038/srep29338] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 06/16/2016] [Indexed: 12/15/2022] Open
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune inflammatory disease that leads to destructive arthritis. Although the HLA class II locus is the strongest genetic risk factor for rheumatoid arthritis, the relationship between HLA class II alleles and lymphocyte activation remains unclear. We performed immunophenotyping of peripheral blood mononuclear cells on 91 HLA-DRB1-genotyped RA patients and 110 healthy donors. The frequency of memory CXCR4+CD4+ T cells, and not Th1 and Th17 cells, was significantly associated with disease severity by multiple linear regression analysis. RA patients with one or more susceptible HLA-DR haplotypes (shared epitope: SE) displayed a significantly higher frequency of memory CXCR4+CD4+ T cells. Moreover, the frequency of memory CXCR4+CD4+ T cells significantly correlated with the expression level of HLA-DR on B cells, which was elevated in RA patients with SE. In vitro analysis and transcriptomic pathway analysis suggested that the interaction between HLA-DR and T cell receptors is an important regulator of memory CXCR4+CD4+ T cells. Clinically, a higher frequency of memory CXCR4+CD4+ T cells predicted a better response to CTLA4-Ig. Memory CXCR4+CD4+ T cells may serve as a powerful biomarker for unraveling the linkage between HLA-DRB1 genotype and disease activity in RA.
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16
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Mills SC, Goh PH, Kudatsih J, Ncube S, Gurung R, Maxwell W, Mueller A. Cell migration towards CXCL12 in leukemic cells compared to breast cancer cells. Cell Signal 2016; 28:316-24. [DOI: 10.1016/j.cellsig.2016.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 01/19/2016] [Accepted: 01/19/2016] [Indexed: 12/23/2022]
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17
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Impact of HIV-1 tropism on the emergence of non-AIDS events in HIV-infected patients receiving fully suppressive antiretroviral therapy. AIDS 2016; 30:731-41. [PMID: 26595543 PMCID: PMC4937812 DOI: 10.1097/qad.0000000000000977] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Objective: The impact of HIV-1 tropism on the emergence of non-AIDS events was evaluated in a cohort of 116 antiretroviral therapy (ART) responder patients. Methods: The patients were followed for the emergence of hypertension, renal impairment, metabolic and bone disorders (defined as non-AIDS events) each 8 weeks at standard visits. A V3 plasma sequence genotype analysis was performed at the time of ART initiation and the geno2pheno algorithm with the results that defines the false-positive rate (FPR) was used to infer HIV tropism. The associations between the non-AIDS events and the FPR at baseline were evaluated using the χ2 test for trend. A Cox-regression analysis using the counting process formulation of Andersen and Gill was performed to define whether the emergence of non-AIDS events was correlated to FPR. Results: The prevalence of at least one non-AIDS event resulted higher in patients with a FPR below 10% than in patients with a R5 virus (P = 0.033). Patients with a FPR below 5.0% most frequently developed non-AIDS events during ART (P = 0.01). A higher prevalence of patients with at least two AIDS events was found in the group of patients with a FPR below 5.0% with respect to the others (P < 0.001). At multivariate Cox-regression analysis, having an X4 virus and age were independently associated with a higher probability of non-AIDS event development. Conclusion: This study shows that an X4 virus, particularly a FPR less than 5%, is related to non-AIDS events development. Further studies are warranted to understand the mechanisms underlying this phenomenon.
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18
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Bennett SJ, Augustyniak EM, Dunston CR, Brown RA, Shantsila E, Lip GY, Torrao RD, Pararasa C, Remtulla AH, Ladouce R, Friguet B, Griffiths HR. CD4+ T cell surface alpha enolase is lower in older adults. Mech Ageing Dev 2015; 152:56-62. [DOI: 10.1016/j.mad.2015.09.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 09/06/2015] [Accepted: 09/27/2015] [Indexed: 11/25/2022]
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19
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Increased susceptibility of CD4+ T cells from elderly individuals to HIV-1 infection and apoptosis is associated with reduced CD4 and enhanced CXCR4 and FAS surface expression levels. Retrovirology 2015; 12:86. [PMID: 26452480 PMCID: PMC4600300 DOI: 10.1186/s12977-015-0213-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 10/02/2015] [Indexed: 12/05/2022] Open
Abstract
Background Elderly HIV-1 infected individuals progress to AIDS more frequently and rapidly than people becoming infected at a young age. To identify possible reasons for these differences in clinical progression, we performed comprehensive phenotypic analyses of CD4+ T cells from uninfected young and elderly individuals, and examined their susceptibility to HIV-1 infection and programmed death. Results Peripheral blood mononuclear cells (PBMCs) from older people contain an increased percentage of central memory and Th17 CD4+ T cells that are main target cells of HIV-1 and strongly reduced proportions of naïve T cells that are poorly susceptible to HIV-1. Unstimulated T cells from elderly individuals expressed higher levels of activation markers, death receptors, and the viral CXCR4 co-receptor than those from young individuals but responded poorly to stimulation. CD4+ T cells from older individuals were highly susceptible to CXCR4- and CCR5-tropic HIV-1 infection but produced significantly lower quantities of infectious virus than cells from young individuals because they were highly prone to apoptosis and thus presumably had a very short life span. The increased susceptibility of T cells from the elderly to HIV-1 infection correlated directly with CXCR4 and inversely with CD4 expression. The levels of apoptosis correlated with the cell surface expression of FAS but not with the expression of programmed death receptor 1 (PD1) or tumor necrosis factor-related apoptosis-inducing ligand (TRAIL). Conclusions Increased levels of activated and highly susceptible HIV-1 target cells, reduced CD4 and enhanced CXCR4 cell surface expression, together with the high susceptibility to FAS-induced programmed cell death may contribute to the rapid CD4+ T cell depletion and accelerated clinical course of infection in elderly HIV-1-infected individuals. Electronic supplementary material The online version of this article (doi:10.1186/s12977-015-0213-1) contains supplementary material, which is available to authorized users.
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20
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DUSP4-mediated accelerated T-cell senescence in idiopathic CD4 lymphopenia. Blood 2015; 125:2507-18. [PMID: 25733583 DOI: 10.1182/blood-2014-08-598565] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 02/19/2015] [Indexed: 11/20/2022] Open
Abstract
Idiopathic CD4 lymphopenia (ICL) is a rare heterogeneous immunological syndrome of unclear etiology. ICL predisposes patients to severe opportunistic infections and frequently leads to poor vaccination effectiveness. Chronic immune activation, expansion of memory T cells, and impaired T-cell receptor (TCR) signaling have been reported in ICL, but the mechanistic and causative links remain unclear. We show that late-differentiated T cells in 20 patients with ICL displayed defective TCR responses and aging markers similar to those found in T cells from elderly subjects. Intrinsic T-cell defects were caused by increased expression of dual-specific phosphatase 4 (DUSP4). Normalization of DUSP4 expression using a specific siRNA improved CD4(+) T-cell activity in ICL, as this restored TCR-induced extracellular signal-regulated kinase activation and increased the expression of the costimulatory molecules CD27 and CD40L. Conversely, repeated TCR stimulation led to defective signaling and DUSP4 overexpression in control CD4(+) T cells. This was associated with gradual acquisition of a memory phenotype and was curtailed by DUSP4 silencing. These findings identify a premature T-cell senescence in ICL that might be caused by chronic T-cell activation and a consequential DUSP4-dependent dampening of TCR signaling.
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21
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Na HK, Kim M, Chang SS, Kim SY, Park JY, Chung MW, Yang M. Tobacco smoking-response genes in blood and buccal cells. Toxicol Lett 2014; 232:429-37. [PMID: 25447457 DOI: 10.1016/j.toxlet.2014.10.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 10/01/2014] [Accepted: 10/02/2014] [Indexed: 12/19/2022]
Abstract
Tobacco smoking is a well-known cause of various diseases, however, its toxic mechanisms for diseases are not completely understood, yet. Therefore, we performed biological monitoring to find tobacco smoking-responsive mechanisms including oxidative stress in Korean men (N=36). Whole genome microarray analyses were performed with peripheral blood from smokers and age-matched nonsmokers. We also performed qRT-PCR to confirm the microarray results and compared the gene expression of blood to those of buccal cells. To assess the effects of tobacco smoking on oxidative stress, we analyzed urinary levels of malondialdehyde (MDA), a lipid peroxidation marker, and performed PCR-based arrays on reactive oxygen species (ROS)-related genes. As results, 34 genes were differently expressed in blood between smokers and nonsmokers (ps<0.01 and >1.5-fold change). Particularly, the genes involved in immune responsive pathways, e.g., the Fcγ-receptor mediated phagocytosis and the leukocyte transendothelial migration pathways, were differentially expressed between smokers and nonsmokers. Among the above genes, the ACTG1, involved in the maintenance of actin cytoskeleton, cell migration and cancer metastasis, was highly expressed by smoking in both blood and buccal cells. Concerning oxidative stress, smokers showed high levels of urinary MDA and down-regulation of expressions of antioxidant related genes including TPO, MPO, GPX2, PTGR1, and NUDT1 as compared to nonsmokers (ps<0.05). In conclusion, these results suggest that systemically altered immune response and oxidative stress can be tobacco-responsive mechanisms for the related diseases. Based on consistent results in blood and buccal cells, expression of the ACTG1 can be a tobacco smoking-responsive biomarker.
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Affiliation(s)
- Hyun-Kyung Na
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Minju Kim
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Seong-Sil Chang
- Department of Occupational and Environmental Medicine, Eulji University Hospital, Daejeon, Republic of Korea
| | - Soo-Young Kim
- Department of Occupational and Environmental Medicine, Eulji University Hospital, Daejeon, Republic of Korea
| | - Jong Y Park
- Department of Cancer Epidemiology, Moffitt Cancer Center, Tampa, FL, U.S.A
| | - Myeon Woo Chung
- Laboratory Animal Resources Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, Osong, Republic of Korea
| | - Mihi Yang
- Research Center for Cell Fate Control, College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea.
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22
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Gellert M, Hanschmann EM, Lepka K, Berndt C, Lillig CH. Redox regulation of cytoskeletal dynamics during differentiation and de-differentiation. Biochim Biophys Acta Gen Subj 2014; 1850:1575-87. [PMID: 25450486 DOI: 10.1016/j.bbagen.2014.10.030] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 10/24/2014] [Accepted: 10/27/2014] [Indexed: 01/03/2023]
Abstract
BACKGROUND The cytoskeleton, unlike the bony vertebrate skeleton or the exoskeleton of invertebrates, is a highly dynamic meshwork of protein filaments that spans through the cytosol of eukaryotic cells. Especially actin filaments and microtubuli do not only provide structure and points of attachments, but they also shape cells, they are the basis for intracellular transport and distribution, all types of cell movement, and--through specific junctions and points of adhesion--join cells together to form tissues, organs, and organisms. SCOPE OF REVIEW The fine tuned regulation of cytoskeletal dynamics is thus indispensible for cell differentiation and all developmental processes. Here, we discussed redox signalling mechanisms that control this dynamic remodeling. Foremost, we emphasised recent discoveries that demonstrated reversible thiol and methionyl switches in the regulation of actin dynamics. MAJOR CONCLUSIONS Thiol and methionyl switches play an essential role in the regulation of cytoskeletal dynamics. GENERAL SIGNIFICANCE The dynamic remodeling of the cytoskeleton is controlled by various redox switches. These mechanisms are indispensible during development and organogenesis and might contribute to numerous pathological conditions. This article is part of a Special Issue entitled Redox regulation of differentiation and de-differentiation.
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Affiliation(s)
- Manuela Gellert
- Institut für Biochemie und Molekularbiologie, Universitätsmedizin Greifswald, Ernst-Moritz-Arndt-Universität, Greifswald, Germany
| | - Eva-Maria Hanschmann
- Institut für Biochemie und Molekularbiologie, Universitätsmedizin Greifswald, Ernst-Moritz-Arndt-Universität, Greifswald, Germany
| | - Klaudia Lepka
- Klinik für Neurologie, Medizinische Fakultät, Heinrich-Heine-Universität, Düsseldorf, Germany
| | - Carsten Berndt
- Klinik für Neurologie, Medizinische Fakultät, Heinrich-Heine-Universität, Düsseldorf, Germany
| | - Christopher Horst Lillig
- Institut für Biochemie und Molekularbiologie, Universitätsmedizin Greifswald, Ernst-Moritz-Arndt-Universität, Greifswald, Germany.
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23
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Chen G, Lustig A, Weng NP. T cell aging: a review of the transcriptional changes determined from genome-wide analysis. Front Immunol 2013; 4:121. [PMID: 23730304 PMCID: PMC3657702 DOI: 10.3389/fimmu.2013.00121] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Accepted: 05/06/2013] [Indexed: 12/14/2022] Open
Abstract
Age carries a detrimental impact on T cell function. In the past decade, analyses of the genome-scale transcriptional changes of T cells during aging have yielded a large amount of data and provided a global view of gene expression changes in T cells from aged hosts as well as subsets of T cells accumulated with age. Here, we aim to review the changes of gene expression in thymocytes and peripheral mature T cells, as well as the subsets of T cells accumulated with age, and discuss the gene networks and signaling pathways that are altered with aging in T cells. We also discuss future direction for furthering the understanding of the molecular basis of gene expression alterations in aged T cells, which could potentially provide opportunities for gene-based clinical interventions.
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Affiliation(s)
- Guobing Chen
- Laboratory of Molecular Biology and Immunology, National Institute on Aging, National Institutes of Health Baltimore, MD, USA
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24
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Shalekoff S, Schramm DB, Lassaunière R, Picton AC, Tiemessen CT. Differences are evident within the CXCR4–CXCL12 axis between ethnically divergent South African populations. Cytokine 2013; 61:792-800. [DOI: 10.1016/j.cyto.2013.01.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 11/09/2012] [Accepted: 01/01/2013] [Indexed: 01/05/2023]
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