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Montanari Borges B, Gama de Santana M, Willian Preite N, de Lima Kaminski V, Trentin G, Almeida F, Vieira Loures F. Extracellular vesicles from virulent P. brasiliensis induce TLR4 and dectin-1 expression in innate cells and promote enhanced Th1/Th17 response. Virulence 2024; 15:2329573. [PMID: 38511558 PMCID: PMC10962619 DOI: 10.1080/21505594.2024.2329573] [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: 11/27/2023] [Accepted: 03/07/2024] [Indexed: 03/22/2024] Open
Abstract
Extracellular vesicles (EVs) are membrane-enclosed nanoparticles that transport several biomolecules and are involved in important mechanisms and functions related to the pathophysiology of fungal diseases. EVs from Paracoccidioides brasiliensis, the main causative agent of Paracoccidioidomycosis (PCM), modulate the immune response of macrophages. In this study, we assessed the EVs proteome from a virulent P. brasiliensis isolated from granulomatous lesions and compared their immunomodulatory ability with EVs isolated from the fungus before the animal passage (control EVs) when challenging macrophages and dendritic cells (DCs). Proteome showed that virulent EVs have a higher abundance of virulence factors such as GP43, protein 14-3-3, GAPDH, as well as virulence factors never described in PCM, such as aspartyl aminopeptidase and a SidJ analogue compared with control EVs. Virulent extracellular vesicles induced higher expression of TLR4 and Dectin-1 than control EVs in macrophages and dendritic cells (DCs). In opposition, a lower TLR2 expression was induced by virulent EVs. Additionally, virulent EVs induced lower expression of CD80, CD86 and TNF-α, but promoted a higher expression of IL-6 and IL-10, suggesting that EVs isolated from virulent P. brasiliensis-yeast promote a milder DCs and macrophage maturation. Herein, we showed that EVs from virulent fungi stimulated a higher frequency of Th1/Tc1, Th17, and Treg cells, which gives new insights into fungal extracellular vesicles. Taken together, our results suggest that P. brasiliensis utilizes its EVs as virulence bags that manipulate the immune system in its favour, creating a milder immune response and helping with fungal evasion from the immune system.
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Affiliation(s)
- Bruno Montanari Borges
- Institute of Science and Technology (ICT), Federal University of São Paulo (UNIFESP), São José dos Campos, São Paulo, Brazil
| | - Monique Gama de Santana
- Institute of Science and Technology (ICT), Federal University of São Paulo (UNIFESP), São José dos Campos, São Paulo, Brazil
| | - Nycolas Willian Preite
- Institute of Science and Technology (ICT), Federal University of São Paulo (UNIFESP), São José dos Campos, São Paulo, Brazil
| | - Valéria de Lima Kaminski
- Institute of Science and Technology (ICT), Federal University of São Paulo (UNIFESP), São José dos Campos, São Paulo, Brazil
| | - Gabriel Trentin
- Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Fausto Almeida
- Department of Biochemistry and Immunology, Ribeirao Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Flávio Vieira Loures
- Institute of Science and Technology (ICT), Federal University of São Paulo (UNIFESP), São José dos Campos, São Paulo, Brazil
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Kemps PG, Kester L, Scheijde-Vermeulen MA, van Noesel CJM, Verdijk RM, Diepstra A, van Marion AMW, Dors N, van den Bos C, Bruggink AH, Hogendoorn PCW, van Halteren AGS. Demographics and additional haematologic cancers of patients with histiocytic/dendritic cell neoplasms. Histopathology 2024; 84:837-846. [PMID: 38213281 DOI: 10.1111/his.15127] [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: 10/12/2023] [Revised: 11/28/2023] [Accepted: 12/13/2023] [Indexed: 01/13/2024]
Abstract
AIMS The discovery of somatic genetic alterations established many histiocytic disorders as haematologic neoplasms. We aimed to investigate the demographic characteristics and additional haematologic cancers of patients diagnosed with histiocytic disorders in The Netherlands. METHODS AND RESULTS We retrieved data on histiocytosis patients from the Dutch Nationwide Pathology Databank (Palga). During 1993 to 2022, more than 4000 patients with a pathologist-assigned diagnosis of a histiocytic disorder were registered in Palga. Xanthogranulomas were the most common subtype, challenging the prevailing assumption that Langerhans cell histiocytosis (LCH) is the most common histiocytic disorder. LCH and juvenile xanthogranuloma (JXG) had a peak incidence in the first years of life; males were overrepresented among all histiocytosis subgroups. 118 patients had a histiocytic disorder and an additional haematologic malignancy, including 107 (91%) adults at the time of histiocytosis diagnosis. In 16/118 patients, both entities had been analysed for the same genetic alteration(s). In 11 of these 16 patients, identical genetic alterations had been detected in both haematologic neoplasms. This included two patients with PAX5 p.P80R mutated B cell acute lymphoblastic leukaemia and secondary histiocytic sarcoma, further supporting that PAX5 alterations may predispose (precursor) B cells to differentiate into the myeloid lineage. All 4/11 patients with myeloid neoplasms as their additional haematologic malignancy had shared N/KRAS mutations. CONCLUSIONS This population-based study highlights the frequency of xanthogranulomas. Furthermore, our data add to the growing evidence supporting clonal relationships between histiocytic/dendritic cell neoplasms and additional myeloid or lymphoid malignancies. Particularly adult histiocytosis patients should be carefully evaluated for the development of these associated haematologic cancers.
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Affiliation(s)
- Paul G Kemps
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Lennart Kester
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | | | - Carel J M van Noesel
- Department of Pathology, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Robert M Verdijk
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
- Department of Pathology, Erasmus MC University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Arjan Diepstra
- Department of Pathology, University Medical Center Groningen, Groningen, the Netherlands
| | | | - Natasja Dors
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Cor van den Bos
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | | | | | - Astrid G S van Halteren
- Department of Pathology, Leiden University Medical Center, Leiden, the Netherlands
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
- Department of Internal Medicine, Section Clinical Immunology, Erasmus MC University Medical Center Rotterdam, Rotterdam, the Netherlands
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Li JH, Zhang M, Zhang ZD, Pan XH, Pan LL, Sun J. GPR41 deficiency aggravates type 1 diabetes in streptozotocin-treated mice by promoting dendritic cell maturation. Acta Pharmacol Sin 2024:10.1038/s41401-024-01242-7. [PMID: 38514862 DOI: 10.1038/s41401-024-01242-7] [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: 05/07/2023] [Accepted: 02/08/2024] [Indexed: 03/23/2024] Open
Abstract
Disturbances in intestinal immune homeostasis predispose susceptible individuals to type 1 diabetes (T1D). G-protein-coupled receptor 41 (GPR41) is a receptor for short-chain fatty acids (SCFAs) mainly produced by gut microbiota, which plays key roles in maintaining intestinal homeostasis. In this study, we investigated the role of GPR41 in the progression of T1D. In non-obese diabetic (NOD) mice, we found that aberrant reduction of GPR41 expression in the pancreas and colons was associated with the development of T1D. GPR41-deficient (Gpr41-/-) mice displayed significantly exacerbated streptozotocin (STZ)-induced T1D compared to wild-type mice. Furthermore, Gpr41-/- mice showed enhanced gut immune dysregulation and increased migration of gut-primed IFN-γ+ T cells to the pancreas. In bone marrow-derived dendritic cells from Gpr41-/- mice, the expression of suppressor of cytokine signaling 3 (SOCS) was significantly inhibited, while the phosphorylation of STAT3 was significantly increased, thus promoting dendritic cell (DC) maturation. Furthermore, adoptive transfer of bone marrow-derived dendritic cells (BMDC) from Gpr41-/- mice accelerated T1D in irradiated NOD mice. We conclude that GPR41 is essential for maintaining intestinal and pancreatic immune homeostasis and acts as a negative regulator of DC maturation in T1D. GPR41 may be a potential therapeutic target for T1D.
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Affiliation(s)
- Jia-Hong Li
- Department of Pediatric Laboratory, Affiliated Children's Hospital of Jiangnan University (Wuxi Children's Hospital), Jiangnan University, Wuxi, 214023, China
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Ming Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Zhao-di Zhang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Xiao-Hua Pan
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Li-Long Pan
- Department of Pediatric Laboratory, Affiliated Children's Hospital of Jiangnan University (Wuxi Children's Hospital), Jiangnan University, Wuxi, 214023, China.
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China.
| | - Jia Sun
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
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4
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Lim RJ, Salehi-Rad R, Tran LM, Oh MS, Dumitras C, Crosson WP, Li R, Patel TS, Man S, Yean CE, Abascal J, Huang Z, Ong SL, Krysan K, Dubinett SM, Liu B. CXCL9/10-engineered dendritic cells promote T cell activation and enhance immune checkpoint blockade for lung cancer. Cell Rep Med 2024:101479. [PMID: 38518770 DOI: 10.1016/j.xcrm.2024.101479] [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: 08/11/2023] [Revised: 01/11/2024] [Accepted: 02/27/2024] [Indexed: 03/24/2024]
Abstract
Immune checkpoint blockade (ICB) with PD-1/PD-L1 inhibition has revolutionized the treatment of non-small cell lung cancer (NSCLC). Durable responses, however, are observed only in a subpopulation of patients. Defective antigen presentation and an immunosuppressive tumor microenvironment (TME) can lead to deficient T cell recruitment and ICB resistance. We evaluate intratumoral (IT) vaccination with CXCL9- and CXCL10-engineered dendritic cells (CXCL9/10-DC) as a strategy to overcome resistance. IT CXCL9/10-DC leads to enhanced T cell infiltration and activation in the TME and tumor inhibition in murine NSCLC models. The antitumor efficacy of IT CXCL9/10-DC is dependent on CD4+ and CD8+ T cells, as well as CXCR3-dependent T cell trafficking from the lymph node. IT CXCL9/10-DC, in combination with ICB, overcomes resistance and establishes systemic tumor-specific immunity in murine models. These studies provide a mechanistic understanding of CXCL9/10-DC-mediated host immune activation and support clinical translation of IT CXCL9/10-DC to augment ICB efficacy in NSCLC.
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Affiliation(s)
- Raymond J Lim
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ramin Salehi-Rad
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Medicine, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA
| | - Linh M Tran
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Medicine, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA
| | - Michael S Oh
- Division of Hematology and Oncology, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Camelia Dumitras
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - William P Crosson
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Rui Li
- Division of Hematology and Oncology, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Tejas S Patel
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Samantha Man
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Cara E Yean
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jensen Abascal
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - ZiLing Huang
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Stephanie L Ong
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Kostyantyn Krysan
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Medicine, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA
| | - Steven M Dubinett
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Molecular and Medical Pharmacology, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Medicine, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA; Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| | - Bin Liu
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at University of California, Los Angeles, Los Angeles, CA 90095, USA.
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Li C, Schneider JM, Schneider EM. Disulfiram Inhibits Opsonin-Independent Phagocytosis and Migration of Human Long-Lived In Vitro Cultured Phagocytes from Multiple Inflammatory Diseases. Cells 2024; 13:535. [PMID: 38534379 DOI: 10.3390/cells13060535] [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: 01/22/2024] [Revised: 03/07/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024] Open
Abstract
Disulfiram (DSF), an anti-alcoholism medicine, exerts treatment effects in patients suffering from persistent Borreliosis and also exhibits anti-cancer effects through its copper chelating derivatives and induction of oxidative stress in mitochondria. Since chronic/persistent borreliosis is characterized by increased amounts of pro-inflammatory macrophages, this study investigated opsonin-independent phagocytosis, migration, and surface marker expression of in vivo activated and in vitro cultured human monocyte-derived phagocytes (macrophages and dendritic cells) with and without DSF treatment. Phagocytosis of non-opsonized Dynabeads® M-450 and migration of macrophages and dendritic cells were monitored using live cell analyzer Juli™ Br for 24 h, imaging every 3.5 min. To simultaneously monitor phagocyte function, results were analyzed by a newly developed software based on the differential phase contrast images of cells before and after ingestion of Dynabeads. DSF decreased the phagocytic capacities exhibited by in vitro enriched and long-lived phagocytes. Although no chemotactic gradient was applied to the test system, vigorous spontaneous migration was observed. We therefore set up an algorithm to monitor and quantify both phagocytosis and migration simultaneously. DSF not only reduced phagocytosis in a majority of these long-lived phagocytes but also impaired their migration. Despite these selective effects by DSF, we found that DSF reduced the expression densities of surface antigens CD45 and CD14 in all of our long-lived phagocytes. In cells with a high metabolic activity and high mitochondrial contents, DSF led to cell death corresponding to mitochondrial oxidative stress, whereas metabolically inactive phagocytes survived our DSF treatment protocol. In conclusion, DSF affects the viability of metabolically active phagocytes by inducing mitochondrial stress and secondly attenuates phagocytosis and migration in some long-lived phagocytes.
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Affiliation(s)
- Chen Li
- Clinic for Anaesthesiology and Intensive Care Medicine, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - Julian M Schneider
- Clinic for Anaesthesiology and Intensive Care Medicine, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany
| | - E Marion Schneider
- Clinic for Anaesthesiology and Intensive Care Medicine, Ulm University Hospital, Albert-Einstein-Allee 23, 89081 Ulm, Germany
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6
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Sakellariou C, Roser LA, Schiffmann S, Lindstedt M. Fine tuning of the innate and adaptive immune responses by Interleukin-2. J Immunotoxicol 2024; 21:2332175. [PMID: 38526995 DOI: 10.1080/1547691x.2024.2332175] [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: 09/07/2023] [Accepted: 03/13/2024] [Indexed: 03/27/2024] Open
Abstract
Novel immunotherapies for cancer and other diseases aim to trigger the immune system to produce durable responses, while overcoming the immunosuppression that may contribute to disease severity, and in parallel considering immunosafety aspects. Interleukin-2 (IL-2) was one of the first cytokines that the FDA approved as a cancer-targeting immunotherapy. However, in the past years, IL-2 immunotherapy is not actively offered to patients, due to limited efficacy, when compared to other novel immunotherapies, and the associated severe adverse events. In order to design improved in vitro and in vivo models, able to predict the efficacy and safety of novel IL-2 alternatives, it is important to delineate the mechanistic immunological events triggered by IL-2. Particularly, in this review we will discuss the effects IL-2 has with the bridging cell type of the innate and adaptive immune responses, dendritic cells. The pathways involved in the regulation of IL-2 by dendritic cells and T-cells in cancer and autoimmune disease will also be explored.
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Affiliation(s)
| | - Luise A Roser
- Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Frankfurt am Main, Germany
| | - Susanne Schiffmann
- Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Frankfurt am Main, Germany
| | - Malin Lindstedt
- Department of Immunotechnology, Lund University, Lund, Sweden
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7
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Amon L, Seichter A, Vurnek D, Heger L, Lächele L, Tochoedo NR, Kaszubowski T, Hatscher L, Baranska A, Tchitashvili G, Nimmerjahn F, Lehmann CHK, Dudziak D. Clec12A, CD301b, and FcγRIIB/III define the heterogeneity of murine DC2s and DC3s. Cell Rep 2024; 43:113949. [PMID: 38492222 DOI: 10.1016/j.celrep.2024.113949] [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: 11/07/2023] [Revised: 02/02/2024] [Accepted: 02/26/2024] [Indexed: 03/18/2024] Open
Abstract
Over the last decade, multiple studies have investigated the heterogeneity of murine conventional dendritic cells type 2 (cDC2s). However, their phenotypic similarity with monocytes and macrophages renders their clear identification challenging. By creating a protein atlas utilizing multiparameter flow cytometry, we show that ESAM+ cDC2s are a specialized feature of the spleen strongly differing in their proteome from other cDC2s. In contrast, all other tissues are populated by Clec12A+ cDC2s or Clec12A- cDC2s (high or low for Fcγ receptors, C-type lectin receptors, and CD11b, respectively), rendering Clec12A+ cDC2s classical sentinels. Further, expression analysis of CD301b, Clec12A, and FcγRIIB/III provides a conserved definition of cDC2 heterogeneity, including the discovery of putative FcγRIIB/III+ DC3s across tissues. Finally, our data reveal that cell identity (ontogeny) dictates the proteome that is further fine-tuned by the tissue environment on macrophages and dendritic cells (DCs), while monocytes and plasmacytoid DCs (pDCs) display subset intrinsic default settings.
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Affiliation(s)
- Lukas Amon
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany
| | - Anna Seichter
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany
| | - Damir Vurnek
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany; Institute of Immunology, Jena University Hospital, Friedrich-Schiller-University Jena, 07743 Jena, Germany
| | - Lukas Heger
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany
| | - Lukas Lächele
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany
| | - Nounagnon Romaric Tochoedo
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany
| | - Tomasz Kaszubowski
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany
| | - Lukas Hatscher
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany; Department of Rheumatology and Clinical Immunology, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany
| | - Anna Baranska
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany
| | - Giorgi Tchitashvili
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany
| | - Falk Nimmerjahn
- Division of Genetics, Department of Biology, Friedrich-Alexander-University Erlangen-Nürnberg, 91058 Erlangen, Germany; Medical Immunology Campus Erlangen, 91054 Erlangen, Germany
| | - Christian Herbert Kurt Lehmann
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany; Medical Immunology Campus Erlangen, 91054 Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), 91054 Erlangen, Germany; Comprehensive Cancer Center Erlangen-European Metropolitan Area of Nuremberg (CCC ER-EMN), 91054 Erlangen, Germany; Department of Pediatrics and Adolescent Medicine, Friedrich-Alexander-University (FAU) Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Diana Dudziak
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91052 Erlangen, Germany; Institute of Immunology, Jena University Hospital, Friedrich-Schiller-University Jena, 07743 Jena, Germany; Medical Immunology Campus Erlangen, 91054 Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), 91054 Erlangen, Germany; Comprehensive Cancer Center Erlangen-European Metropolitan Area of Nuremberg (CCC ER-EMN), 91054 Erlangen, Germany.
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8
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Xu J, Hissong R, Bareis R, Creech A, Goughenour KD, Freeman CM, Olszewski MA. Batf3-dependent orchestration of the robust Th1 responses and fungal control during cryptococcal infection, the role of cDC1. mBio 2024; 15:e0285323. [PMID: 38349130 PMCID: PMC10936214 DOI: 10.1128/mbio.02853-23] [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: 11/02/2023] [Accepted: 01/22/2024] [Indexed: 03/14/2024] Open
Abstract
While type I conventional dendritic cells (cDC1s) are vital for generating adaptive immunity against intracellular pathogens and tumors, their role in defense against fungal pathogen Cryptococcus neoformans remains unclear. We investigated the role of the cDC1 subset in a fungus-restricting mouse model of cryptococcal infection. The cDC1 subset displayed a unique transcriptional signature with highly upregulated T-cell recruitment, polarization, and activation pathways compared to other DC subsets. Using Batf3-/- mice, which lack the cDC1 population, our results support that Batf3-dependent cDC1s are pivotal for the development of the effective immune response against cryptococcal infection, particularly within the lung and brain. Deficiency in Batf3 cDC1 led to diminished CD4 accumulation and decreased IFNγ production across multiple organs, supporting that cDC1s are a major driver of potent Th1 responses during cryptococcal infection. Consistently, mice lacking Batf3-cDC1 demonstrated markedly diminished fungicidal activity and weaker containment of the fungal pathogen. In conclusion, Batf3-dependent cDC1 can function as a linchpin in mounting Th1 response, ensuring effective fungal control during cryptococcal infection. Harnessing cDC1 pathways may present a promising strategy for interventions against this pathogen.IMPORTANCECryptococcus neoformans causes severe meningoencephalitis, accounting for an estimated 200,000 deaths each year. Central to mounting an effective defense against these infections is T-cell-mediated immunity, which is orchestrated by dendritic cells (DCs). The knowledge about the role of specific DC subsets in shaping anti-cryptococcal immunity is limited. Here, we demonstrate that Batf3 cDC1s are important drivers of protective Th1 CD4 T-cell responses required for clearance of cryptococcal infection. Deficiency of Batf3 cDC1 in the infected mice leads to significantly reduced Th1 response and exacerbated fungal growth to the point where depleting the remaining CD4 T cells no longer affects fungal burden. Unveiling this pivotal role of cDC1 in antifungal defense is likely to be important for the development of vaccines and therapies against life-threatening fungal pathogens.
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Affiliation(s)
- Jintao Xu
- Research Service, Department of Veterans Affairs Health System, Ann Arbor VA Health System, Ann Arbor, Michigan, USA
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Rylan Hissong
- Research Service, Department of Veterans Affairs Health System, Ann Arbor VA Health System, Ann Arbor, Michigan, USA
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Rachel Bareis
- Research Service, Department of Veterans Affairs Health System, Ann Arbor VA Health System, Ann Arbor, Michigan, USA
| | - Arianna Creech
- Research Service, Department of Veterans Affairs Health System, Ann Arbor VA Health System, Ann Arbor, Michigan, USA
| | - Kristie D. Goughenour
- Research Service, Department of Veterans Affairs Health System, Ann Arbor VA Health System, Ann Arbor, Michigan, USA
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Christine M. Freeman
- Research Service, Department of Veterans Affairs Health System, Ann Arbor VA Health System, Ann Arbor, Michigan, USA
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
| | - Michal A. Olszewski
- Research Service, Department of Veterans Affairs Health System, Ann Arbor VA Health System, Ann Arbor, Michigan, USA
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, Michigan, USA
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9
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Cao Z, Yang X, Yang W, Chen F, Jiang W, Zhan S, Jiang F, Li J, Ye C, Lang L, Zhang S, Feng Z, Lai X, Liu Y, Mao L, Cai H, Teng Y, Xie J. Modulation of Dendritic Cell Function via Nanoparticle-Induced Cytosolic Calcium Changes. ACS Nano 2024; 18:7618-7632. [PMID: 38422984 PMCID: PMC10938921 DOI: 10.1021/acsnano.4c00550] [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] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/15/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
Calcium nanoparticles have been investigated for applications, such as drug and gene delivery. Additionally, Ca2+ serves as a crucial second messenger in the activation of immune cells. However, few studies have systematically studied the effects of calcium nanoparticles on the calcium levels and functions within immune cells. In this study, we explore the potential of calcium nanoparticles as a vehicle to deliver calcium into the cytosol of dendritic cells (DCs) and influence their functions. We synthesized calcium hydroxide nanoparticles, coated them with a layer of silica to prevent rapid degradation, and further conjugated them with anti-CD205 antibodies to achieve targeted delivery to DCs. Our results indicate that these nanoparticles can efficiently enter DCs and release calcium ions in a controlled manner. This elevation in cytosolic calcium activates both the NFAT and NF-κB pathways, in turn promoting the expression of costimulatory molecules, antigen-presenting molecules, and pro-inflammatory cytokines. In mouse tumor models, the calcium nanoparticles enhanced the antitumor immune response and augmented the efficacy of both radiotherapy and chemotherapy without introducing additional toxicity. Our study introduces a safe nanoparticle immunomodulator with potential widespread applications in cancer therapy.
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Affiliation(s)
- Zhengwei Cao
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Xueyuan Yang
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Wei Yang
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Fanghui Chen
- Department
of Hematology and Medical Oncology & Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Wen Jiang
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Shuyue Zhan
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Fangchao Jiang
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Jianwen Li
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Chenming Ye
- Department
of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, Georgia 30602, United States
| | - Liwei Lang
- Department
of Physiology, Medical College of Georgia, Augusta University, Augusta, Georgia 30907, United States
| | - Sirui Zhang
- Institute
of Bioinformatics, University of Georgia, Athens, Georgia 30602, United States
| | - Zhizi Feng
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Xinning Lai
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Yang Liu
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Leidong Mao
- School
of
Electrical and Computer Engineering, College of Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Houjian Cai
- Department
of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, Georgia 30602, United States
| | - Yong Teng
- Department
of Hematology and Medical Oncology & Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Jin Xie
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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10
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Camp B, Jorde I, Sittel F, Pausder A, Jeron A, Bruder D, Schreiber J, Stegemann-Koniszewski S. Comprehensive analysis of lung macrophages and dendritic cells in two murine models of allergic airway inflammation reveals model- and subset-specific accumulation and phenotypic alterations. Front Immunol 2024; 15:1374670. [PMID: 38529288 PMCID: PMC10961404 DOI: 10.3389/fimmu.2024.1374670] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 02/27/2024] [Indexed: 03/27/2024] Open
Abstract
Introduction Allergic asthma has been mainly attributed to T helper type 2 (Th2) and proinflammatory responses but many cellular processes remain elusive. There is increasing evidence for distinct roles for macrophage and dendritic cell (DC) subsets in allergic airway inflammation (AAI). At the same time, there are various mouse models for allergic asthma that have been of utmost importance in identifying key inflammatory pathways in AAI but that differ in the allergen and/or route of sensitization. It is unclear whether and how the accumulation and activation of specialized macrophage and DC subsets depend on the experimental model chosen for analyses. Methods In our study, we employed high-parameter spectral flow cytometry to comprehensively assess the accumulation and phenotypic alterations of different macrophage- and DC-subsets in the lung in an OVA- and an HDM-mediated mouse model of AAI. Results We observed subset-specific as well as model-specific characteristics with respect to cell numbers and functional marker expression. Generally, alveolar as opposed to interstitial macrophages showed increased MHCII surface expression in AAI. Between the models, we observed significantly increased numbers of alveolar macrophages, CD103+ DC and CD11b+ DC in HDM-mediated AAI, concurrent with significantly increased airway interleukin-4 but decreased total serum IgE levels. Further, increased expression of CD80 and CD86 on DC was exclusively detected in HDM-mediated AAI. Discussion Our study demonstrates a model-specific involvement of macrophage and DC subsets in AAI. It further highlights spectral flow cytometry as a valuable tool for their comprehensive analysis under inflammatory conditions in the lung.
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Affiliation(s)
- Belinda Camp
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Ilka Jorde
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Franka Sittel
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Alexander Pausder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Andreas Jeron
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
- Department of Pediatrics, Ludwig-Maximilians University of Munich, Munich, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
- Immune Regulation Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Jens Schreiber
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
| | - Sabine Stegemann-Koniszewski
- Experimental Pneumology, Department of Pneumology, University Hospital Magdeburg, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany
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11
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Zhang Y, Béland LC, Roussel S, Bertrand N, Hébert SS, Vallières L. Optimization of a lipid nanoparticle-based protocol for RNA transfection into primary mononuclear phagocytes. J Leukoc Biol 2024:qiae059. [PMID: 38466819 DOI: 10.1093/jleuko/qiae059] [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: 10/16/2023] [Revised: 02/07/2024] [Accepted: 02/10/2024] [Indexed: 03/13/2024] Open
Abstract
The effective delivery of synthetic RNA into mononuclear phagocytes is a prerequisite for experimental research and therapeutic development. However, traditional methods are highly ineffective and toxic for these cells. Here, we aimed to optimize a transfection protocol for primary bone marrow-derived phagocytes, specifically dendritic cells and macrophages, using lipid nanoparticles generated by microfluidics. Our results show that a lipid mixture similar to that used in Moderna's COVID-19 mRNA vaccine outperforms the others tested. Improved mRNA transfection can be achieved by replacing uridine with methylpseudouridine but not methoxyuridine, which interferes with transfection. The addition of diphenyleneiodonium or apocynin can enhance transfection in a cell type-dependent manner without adverse effects, while apolipoprotein E provides no added value. These optimized transfection conditions can also be used for microRNA agonists and antagonists. In sum, this study offers a straightforward, highly efficient, reproducible, and non-toxic protocol to deliver RNA into different primary mononuclear phagocytes in culture.
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Affiliation(s)
- Yu Zhang
- Neuroscience Unit, University Hospital Center of Quebec - Laval University, Quebec City, Canada
| | - Louis-Charles Béland
- Neuroscience Unit, University Hospital Center of Quebec - Laval University, Quebec City, Canada
| | - Sabrina Roussel
- Endocrinology and Nephrology Unit, University Hospital Center of Quebec - Laval University, Quebec City, Canada
| | - Nicolas Bertrand
- Endocrinology and Nephrology Unit, University Hospital Center of Quebec - Laval University, Quebec City, Canada
| | - Sébastien S Hébert
- Neuroscience Unit, University Hospital Center of Quebec - Laval University, Quebec City, Canada
| | - Luc Vallières
- Neuroscience Unit, University Hospital Center of Quebec - Laval University, Quebec City, Canada
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12
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Ramamoorthi G. Editorial: New immunotherapy strategies and related therapeutic targets for gastrointestinal malignancies. Front Immunol 2024; 15:1389781. [PMID: 38524142 PMCID: PMC10957567 DOI: 10.3389/fimmu.2024.1389781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 03/04/2024] [Indexed: 03/26/2024] Open
Affiliation(s)
- Ganesan Ramamoorthi
- Clinical Science & Immunology Program, H. Lee Moffitt Cancer Center, Tampa, FL, United States
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13
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Boll EJ, Lopez DV, Terne M, Hessing S, Parschat K, Jensen SR. Human milk oligosaccharides differentially support gut barrier integrity and enhance Th1 and Th17 cell effector responses in vitro. Front Immunol 2024; 15:1359499. [PMID: 38510254 PMCID: PMC10950922 DOI: 10.3389/fimmu.2024.1359499] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 02/15/2024] [Indexed: 03/22/2024] Open
Abstract
Human milk oligosaccharides (HMOs) can modulate the intestinal barrier and regulate immune cells to favor the maturation of the infant intestinal tract and immune system, but the precise functions of individual HMOs are unclear. To determine the structure-dependent effects of individual HMOs (representing different structural classes) on the intestinal epithelium as well as innate and adaptive immune cells, we assessed fucosylated (2'FL and 3FL), sialylated (3'SL and 6'SL) and neutral non-fucosylated (LNT and LNT2) HMOs for their ability to support intestinal barrier integrity, to stimulate the secretion of chemokines from intestinal epithelial cells, and to modulate cytokine release from LPS-activated dendritic cells (DCs), M1 macrophages (MØs), and co-cultures with naïve CD4+ T cells. The fucosylated and neutral non-fucosylated HMOs increased barrier integrity and protected the barrier following an inflammatory insult but exerted minimal immunomodulatory activity. The sialylated HMOs enhanced the secretion of CXCL10, CCL20 and CXCL8 from intestinal epithelial cells, promoted the secretion of several cytokines (including IL-10, IL-12p70 and IL-23) from LPS-activated DCs and M1 MØs, and increased the secretion of IFN-γ and IL-17A from CD4+ T cells primed by LPS-activated DCs and MØs while reducing the secretion of IL-13. Thus, 3'SL and 6'SL supported Th1 and Th17 responses while reducing Th2 responses. Collectively, our data show that HMOs exert structure-dependent effects on the intestinal epithelium and possess immunomodulatory properties that confer benefits to infants and possibly also later in life.
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Affiliation(s)
| | | | - Mandy Terne
- Chr. Hansen A/S, Applied HMOs, Hoersholm, Denmark
| | - Sara Hessing
- Chr. Hansen A/S, Applied HMOs, Hoersholm, Denmark
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14
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Bülow S, Ederer KU, Holzinger JM, Zeller L, Werner M, Toelge M, Pfab C, Hirsch S, Göpferich F, Hiergeist A, Berberich-Siebelt F, Gessner A. Bactericidal/permeability-increasing protein instructs dendritic cells to elicit Th22 cell response. Cell Rep 2024; 43:113929. [PMID: 38457343 DOI: 10.1016/j.celrep.2024.113929] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/01/2024] [Accepted: 02/21/2024] [Indexed: 03/10/2024] Open
Abstract
Neutrophil-derived bactericidal/permeability-increasing protein (BPI) is known for its bactericidal activity against gram-negative bacteria and neutralization of lipopolysaccharide. Here, we define BPI as a potent activator of murine dendritic cells (DCs). As shown in GM-CSF-cultured, bone-marrow-derived cells (BMDCs), BPI induces a distinct stimulation profile including IL-2, IL-6, and tumor necrosis factor expression. Conventional DCs also respond to BPI, while M-CSF-cultivated or peritoneal lavage macrophages do not. Subsequent to BPI stimulation of BMDCs, CD4+ T cells predominantly secrete IL-22 and, when naive, preferentially differentiate into T helper 22 (Th22) cells. Congruent with the tissue-protective properties of IL-22 and along with impaired IL-22 induction, disease severity is significantly increased during dextran sodium sulfate-induced colitis in BPI-deficient mice. Importantly, physiological diversification of intestinal microbiota fosters BPI-dependent IL-22 induction in CD4+ T cells derived from mesenteric lymph nodes. In conclusion, BPI is a potent activator of DCs and consecutive Th22 cell differentiation with substantial relevance in intestinal homeostasis.
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Affiliation(s)
- Sigrid Bülow
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany.
| | - Katharina U Ederer
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Jonas M Holzinger
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Lisa Zeller
- Institute of Medical Microbiology and Hygiene Regensburg, University of Regensburg, 93053 Regensburg, Germany
| | - Maren Werner
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Martina Toelge
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Christina Pfab
- Institute of Medical Microbiology and Hygiene Regensburg, University of Regensburg, 93053 Regensburg, Germany
| | - Sarah Hirsch
- Institute of Medical Microbiology and Hygiene Regensburg, University of Regensburg, 93053 Regensburg, Germany
| | - Franziska Göpferich
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Andreas Hiergeist
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany; Institute of Medical Microbiology and Hygiene Regensburg, University of Regensburg, 93053 Regensburg, Germany
| | | | - André Gessner
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, 93053 Regensburg, Germany; Institute of Medical Microbiology and Hygiene Regensburg, University of Regensburg, 93053 Regensburg, Germany
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15
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Eich C, Vogt JF, Längst V, Clausen BE, Hövelmeyer N. Isolation and high-dimensional flow cytometric analysis of tumor-infiltrating leukocytes in a mouse model of colorectal cancer. Front Immunol 2024; 15:1295863. [PMID: 38500875 PMCID: PMC10944955 DOI: 10.3389/fimmu.2024.1295863] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 02/09/2024] [Indexed: 03/20/2024] Open
Abstract
Colorectal cancer (CRC) is a complex and heterogeneous disease characterized by dysregulated interactions between tumor cells and the immune system. The tumor microenvironment plays a pivotal role in cancer initiation as well as progression, with myeloid immune cells such as dendritic cell and macrophage subsets playing diverse roles in cancer immunity. On one hand, they exert anti-tumor effects, but they can also contribute to tumor growth. The AOM/DSS colitis-associated cancer mouse model has emerged as a valuable tool to investigate inflammation-driven CRC. To understand the role of different leukocyte populations in tumor development, the preparation of single cell suspensions from tumors has become standard procedure for many types of cancer in recent years. However, in the case of AOM/DSS-induced colorectal tumors, this is still challenging and rarely described. For one, to be able to properly distinguish tumor-associated immune cells, separate processing of cancerous and surrounding colon tissue is essential. In addition, cell yield, due to the low tumor mass, viability, as well as preservation of cell surface epitopes are important for successful flow cytometric profiling of tumor-infiltrating leukocytes. Here we present a fast, simple, and economical step-by-step protocol for isolating colorectal tumor-associated leukocytes from AOM/DSS-treated mice. Furthermore, we demonstrate the feasibility of this protocol for high-dimensional flow cytometric identification of the different tumor-infiltrating leukocyte populations, with a specific focus on myeloid cell subsets.
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Affiliation(s)
- Christina Eich
- Institute for Molecular Medicine, Paul Klein Center for Immune Intervention, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Johannes F. Vogt
- Institute for Molecular Medicine, Paul Klein Center for Immune Intervention, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Vivian Längst
- Institute for Molecular Medicine, Paul Klein Center for Immune Intervention, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Björn E. Clausen
- Institute for Molecular Medicine, Paul Klein Center for Immune Intervention, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Nadine Hövelmeyer
- Institute for Molecular Medicine, Paul Klein Center for Immune Intervention, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
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16
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Garcia-Torres M, Muñoz BS, Segalés J, Mallol C, Sanz A, López MC, Roura X. Atypical disseminated histiocytic sarcoma in a 7-month-old dog. Vet Clin Pathol 2024; 53:122-130. [PMID: 38242688 DOI: 10.1111/vcp.13328] [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: 01/25/2023] [Revised: 11/24/2023] [Accepted: 12/14/2023] [Indexed: 01/21/2024]
Abstract
A 7-month-old intact female bearded collie dog was admitted after a 2-week history of progressive cough, inappetence, and lethargy, with no response to previous treatment with doxycycline and steroids. Mild attenuation of lung sounds in the right middle hemithorax was the only abnormality detected on physical examination. Abdominal ultrasound and thoracic radiographs were performed and revealed multifocally distributed nodules and masses, well-circumscribed and of variable size in the kidneys and pulmonary parenchyma. Ultrasound-guided fine needle aspirates of the renal and pulmonary masses were taken. A cytologic evaluation of these lesions pointed towards a malignant mesenchymal neoplasia. Euthanasia was elected due to the poor prognosis and rapid progression. The post-mortem histopathology, a positive result to IBA1 immunoperoxidase staining, and a lack of detection of infectious agents, and negative E-cadherin immunostaining enabled the final diagnosis of a disseminated histiocytic sarcoma. We report an atypical form, both in breed and age, of canine disseminated histiocytic sarcoma. While all breeds can be affected, there is a clear predisposition in some, and no cases have been previously described in bearded collies. Moreover, to the authors' knowledge, this is the youngest dog with this histiocytic disorder described to date. Disseminated histiocytic sarcoma should be considered as a differential diagnosis of multinodular tumors in dogs, regardless of the anatomic location and age of the dogs, even in puppies.
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Affiliation(s)
- Maria Garcia-Torres
- Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Bárbara Serrano Muñoz
- Departament de Sanitat i Anatomia Animals, Servei de Diagnòstic de Patologia Veterinària, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Joaquim Segalés
- Departament de Sanitat i Anatomia Animals, Servei de Diagnòstic de Patologia Veterinària, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Spain
- Centre de Recerca en Sanitat Animal (CReSA), Unitat Mixta d'Investigació IRTA-UAB en Sanitat Animal, Barcelona, Spain
| | - Clàudia Mallol
- Diagnostic Imaging Department, Anderson Moores Veterinary Specialists, Hampshire, UK
| | - Alba Sanz
- Departament de Medicina i Cirurgia Animals, Servei de Patologia Clínica, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - María C López
- Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Xavier Roura
- Hospital Clínic Veterinari, Universitat Autònoma de Barcelona, Bellaterra, Spain
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17
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Han X, Zhang M, Yan L, Fu Y, Kou H, Shang C, Wang J, Liu H, Jiang C, Wang J, Cheng T. Role of dendritic cells in spinal cord injury. CNS Neurosci Ther 2024; 30:e14593. [PMID: 38528832 DOI: 10.1111/cns.14593] [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: 08/13/2023] [Revised: 11/15/2023] [Accepted: 12/10/2023] [Indexed: 03/27/2024] Open
Abstract
BACKGROUND Inflammation can worsen spinal cord injury (SCI), with dendritic cells (DCs) playing a crucial role in the inflammatory response. They mediate T lymphocyte differentiation, activate microglia, and release cytokines like NT-3. Moreover, DCs can promote neural stem cell survival and guide them toward neuron differentiation, positively impacting SCI outcomes. OBJECTIVE This review aims to summarize the role of DCs in SCI-related inflammation and identify potential therapeutic targets for treating SCI. METHODS Literature in PubMed and Web of Science was reviewed using critical terms related to DCs and SCI. RESULTS The study indicates that DCs can activate microglia and astrocytes, promote T-cell differentiation, increase neurotrophin release at the injury site, and subsequently reduce secondary brain injury and enhance functional recovery in the spinal cord. CONCLUSIONS This review highlights the repair mechanisms of DCs and their potential therapeutic potential for SCI.
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Affiliation(s)
- Xiaonan Han
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Mingkang Zhang
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Liyan Yan
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yikun Fu
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Hongwei Kou
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Chunfeng Shang
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Junmin Wang
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Hongjian Liu
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Chao Jiang
- Department of Neurology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jian Wang
- Department of Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Tian Cheng
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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18
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Flynn PA, Long MD, Kosaka Y, Long N, Mulkey JS, Coy JL, Agarwal A, Lind EF. Leukemic mutation FLT3-ITD is retained in dendritic cells and disrupts their homeostasis leading to expanded Th17 frequency. Front Immunol 2024; 15:1297338. [PMID: 38495876 PMCID: PMC10943691 DOI: 10.3389/fimmu.2024.1297338] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 02/09/2024] [Indexed: 03/19/2024] Open
Abstract
Dendritic cells (DC) are mediators between innate and adaptive immune responses to pathogens and tumors. DC development is determined by signaling through the receptor tyrosine kinase Fms-like tyrosine kinase 3 (FLT3) in bone marrow myeloid progenitors. Recently the naming conventions for DC phenotypes have been updated to distinguish between "Conventional" DCs (cDCs) and plasmacytoid DCs (pDCs). Activating mutations of FLT3, including Internal Tandem Duplication (FLT3-ITD), are associated with poor prognosis for acute myeloid leukemia (AML) patients. Having a shared myeloid lineage it can be difficult to distinguish bone fide DCs from AML tumor cells. To date, there is little information on the effects of FLT3-ITD in DC biology. To further elucidate this relationship we utilized CITE-seq technology in combination with flow cytometry and multiplex immunoassays to measure changes to DCs in human and mouse tissues. We examined the cDC phenotype and frequency in bone marrow aspirates from patients with AML to understand the changes to cDCs associated with FLT3-ITD. When compared to healthy donor (HD) we found that a subset of FLT3-ITD+ AML patient samples have overrepresented populations of cDCs and disrupted phenotypes. Using a mouse model of FLT3-ITD+ AML, we found that cDCs were increased in percentage and number compared to control wild-type (WT) mice. Single cell RNA-seq identified FLT3-ITD+ cDCs as skewed towards a cDC2 T-bet- phenotype, previously shown to promote Th17 T cells. We assessed the phenotypes of CD4+ T cells in the AML mice and found significant enrichment of both Treg and Th17 CD4+ T cells in the bone marrow and spleen compartments. Ex vivo stimulation of CD4+ T cells also showed increased Th17 phenotype in AML mice. Moreover, co-culture of AML mouse-derived DCs and naïve OT-II cells preferentially skewed T cells into a Th17 phenotype. Together, our data suggests that FLT3-ITD+ leukemia-associated cDCs polarize CD4+ T cells into Th17 subsets, a population that has been shown to be negatively associated with survival in solid tumor contexts. This illustrates the complex tumor microenvironment of AML and highlights the need for further investigation into the effects of FLT3-ITD mutations on DC phenotypes and their downstream effects on Th polarization.
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Affiliation(s)
- Patrick A. Flynn
- Molecular Microbiology and Immunology, Oregon Health & Science University, Portland, OR, United States
| | - Mark D. Long
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
| | - Yoko Kosaka
- Molecular Microbiology and Immunology, Oregon Health & Science University, Portland, OR, United States
| | - Nicola Long
- Department of Hematology & Medical Oncology, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States
| | - Jessica S. Mulkey
- Molecular Microbiology and Immunology, Oregon Health & Science University, Portland, OR, United States
| | - Jesse L. Coy
- Molecular Microbiology and Immunology, Oregon Health & Science University, Portland, OR, United States
| | - Anupriya Agarwal
- Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR, United States
- Division of Oncological Sciences, Oregon Health & Science University, Portland, OR, United States
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States
| | - Evan F. Lind
- Molecular Microbiology and Immunology, Oregon Health & Science University, Portland, OR, United States
- Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR, United States
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, United States
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19
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Yazdanpanah E, Dadfar S, Shadab A, Orooji N, Nemati M, Pazoki A, Esmaeili SA, Baharlou R, Haghmorad D. Berberine: A natural modulator of immune cells in multiple sclerosis. Immun Inflamm Dis 2024; 12:e1213. [PMID: 38477663 DOI: 10.1002/iid3.1213] [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: 08/25/2023] [Revised: 02/26/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024] Open
Abstract
Berberine is a benzylisoquinoline alkaloid found in such plants as Berberis vulgaris, Berberis aristata, and others, revealing a variety of pharmacological properties as a result of interacting with different cellular and molecular targets. Recent studies have shown the immunomodulatory effects of Berberine which result from its impacts on immune cells and immune response mediators such as diverse T lymphocyte subsets, dendritic cells (DCs), and different inflammatory cytokines. Multiple sclerosis (MS) is a chronic disabling and neurodegenerative disease of the central nervous system (CNS) characterized by the recruitment of autoreactive T cells into the CNS causing demyelination, axonal damage, and oligodendrocyte loss. There have been considerable changes discovered in MS regards to the function and frequency of T cell subsets such as Th1 cells, Th17 cells, Th2 cells, Treg cells, and DCs. In the current research, we reviewed the outcomes of in vitro, experimental, and clinical investigations concerning the modulatory effects that Berberine provides on the function and numbers of T cell subsets and DCs, as well as important cytokines that are involved in MS.
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Affiliation(s)
- Esmaeil Yazdanpanah
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sepehr Dadfar
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Alireza Shadab
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Niloufar Orooji
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - MohammadHossein Nemati
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Alireza Pazoki
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | | | - Rasoul Baharlou
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Dariush Haghmorad
- Department of Immunology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran
- Cancer Research Center, Semnan University of Medical Sciences, Semnan, Iran
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20
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Baker C, Piasecki J, Hunt JA, Hough J. The reproducibility of dendritic cell and T cell counts to a 30-min high-intensity cycling protocol as a tool to highlight overtraining. Exp Physiol 2024; 109:380-392. [PMID: 38063067 DOI: 10.1113/ep091326] [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: 06/01/2023] [Accepted: 11/23/2023] [Indexed: 03/02/2024]
Abstract
Heavy training has been reported to be immunosuppressive in athletes and lead to blunted cortisol responses to exercise. Cortisol elevates the number of dendritic cells (DCs), key antigen-presenting cells that interact with T cells to initiate an immune response. Reproducible cortisol responses to a 30-min cycle test have been identified but were based on percentage of work rate maximum. To ensure physiological consistency, submaximal anchors, that is, ventilatory threshold (VT1 ) should prescribe intensity. This study aims to assess the reproducibility of the DC and T cell responses to an adapted stress test to assess its usefulness in assessing DC dysfunction with intensified training. Twelve males cycled for 1 min at 20% below VT1 and 4 min at 50% between VT1 andV ̇ O 2 max ${\dot{V}}_{{{\mathrm{O}}}_{\mathrm{2}}\max }$ , for 30 min (20/50), with blood samples pre-, post- and 30 min post-exercise. This was repeated twice, 2-7 days apart. Flow cytometry assessed total DCs, plasmacytoid DCs, myeloid DCs, total T cells, T helper cells and T cytotoxic cells. No significant trial or interaction effects were found for any variable. A significant main effect of time for all variables was found; immune cells increased from pre- to post-exercise and decreased to baseline 30 min post-exercise, apart from plasmacytoid DCs, which remained elevated 30 min post-exercise. Intraclass correlation coefficients showed overall good-to-excellent reliability for all immune cells, with smallest real difference and Bland-Altman analysis verifying high reproducibility between trials. These results suggest that the 20/50 exercise test induces reproducible DC and T cell count changes, which, implemented before and after a period of intensified training, may highlight the negative states of overtraining.
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Affiliation(s)
- Carla Baker
- Department of Sport Science, SHAPE Research Centre, Nottingham Trent University, Nottingham, UK
| | - Jessica Piasecki
- Department of Sport Science, SHAPE Research Centre, Nottingham Trent University, Nottingham, UK
| | - John A Hunt
- Medical Technologies Innovation Facility, Nottingham Trent University, Nottingham, UK
| | - John Hough
- Department of Sport Science, SHAPE Research Centre, Nottingham Trent University, Nottingham, UK
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21
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Yamada S, Nagafuchi Y, Fujio K. Pathophysiology and stratification of treatment-resistant rheumatoid arthritis. Immunol Med 2024; 47:12-23. [PMID: 37462450 DOI: 10.1080/25785826.2023.2235734] [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: 04/23/2023] [Accepted: 07/09/2023] [Indexed: 02/23/2024] Open
Abstract
Early diagnosis and timely therapeutic intervention are clinical challenges of rheumatoid arthritis (RA), especially for treatment-resistant or difficult-to-treat patients. Little is known about the immunological mechanisms involved in refractory RA. In this review, we summarize previous research findings on the immunological mechanisms of treatment-resistant RA. Genetic prediction of treatment-resistant RA is challenging. Patients with and without anti-cyclic citrullinated peptide autoantibodies are considered part of distinct subgroups, especially regarding long-term clinical prognosis and treatment responses. B cells, T cells and other immune cells and fibroblasts are of pathophysiological importance and are associated with treatment responses. Finally, we propose a new hypothesis that stratifies patients with RA into two subgroups with distinct immunological pathologies based on our recent immunomics analysis of RA. One RA subgroup with a favorable prognosis is characterized by increased interferon signaling. Another subgroup with a worse prognosis is characterized by enhanced acquired immune responses. Increases in dendritic cell precursors and diversified autoreactive anti-modified protein antibodies may have pathophysiological roles, especially in the latter subgroup. These findings that improve treatment response predictions might contribute to future precision medicine for RA.
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Affiliation(s)
- Saeko Yamada
- Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yasuo Nagafuchi
- Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Functional Genomics and Immunological Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Keishi Fujio
- Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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22
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Kane G, Lusi C, Brassil M, Atukorale P. Engineering approaches for innate immune-mediated tumor microenvironment remodeling. Immunooncol Technol 2024; 21:100406. [PMID: 38213392 PMCID: PMC10777078 DOI: 10.1016/j.iotech.2023.100406] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Cancer immunotherapy offers transformative promise particularly for the treatment of lethal cancers, since a correctly trained immune system can comprehensively orchestrate tumor clearance with no need for continued therapeutic intervention. Historically, the majority of immunotherapies have been T cell-focused and have included immune checkpoint inhibitors, chimeric antigen receptor T cells, and T-cell vaccines. Unfortunately T-cell-focused therapies have failed to achieve optimal efficacy in most solid tumors largely because of a highly immunosuppressed 'cold' or immune-excluded tumor microenvironment (TME). Recently, a rapidly growing treatment paradigm has emerged that focuses on activation of tumor-resident innate antigen-presenting cells, such as dendritic cells and macrophages, which can drive a proinflammatory immune response to remodel the TME from 'cold' or immune-excluded to 'hot'. Early strategies for TME remodeling centered on free cytokines and agonists, but these approaches have faced significant hurdles in both delivery and efficacy. Systemic toxicity from off-target inflammation is a paramount concern in these therapies. To address this critical gap, engineering approaches have provided the opportunity to add 'built-in' capabilities to cytokines, agonists, and other therapeutic agents to mediate improved delivery and efficacy. Such capabilities have included protective encapsulation to shield them from degradation, targeting to direct them with high specificity to tumors, and co-delivery strategies to harness synergistic proinflammatory pathways. Here, we review innate immune-mediated TME remodeling engineering approaches that focus on cytokines, innate immune agonists, immunogenic viruses, and cell-based methods, highlighting emerging preclinical approaches and strategies that are either being tested in clinical trials or already Food and Drug Administration approved.
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Affiliation(s)
- G.I. Kane
- Department of Biomedical Engineering, University of Massachusetts Amherst, Amherst
- University of Massachusetts Cancer Center, Worcester
| | - C.F. Lusi
- Department of Biomedical Engineering, University of Massachusetts Amherst, Amherst
- University of Massachusetts Cancer Center, Worcester
| | - M.L. Brassil
- Department of Biomedical Engineering, University of Massachusetts Amherst, Amherst
- University of Massachusetts Cancer Center, Worcester
| | - P.U. Atukorale
- Department of Biomedical Engineering, University of Massachusetts Amherst, Amherst
- University of Massachusetts Cancer Center, Worcester
- Division of Innate Immunity, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, USA
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23
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Quartey BC, Sapudom J, ElGindi M, Alatoom A, Teo J. Matrix-Bound Hyaluronan Molecular Weight as a Regulator of Dendritic Cell Immune Potency. Adv Healthc Mater 2024; 13:e2303125. [PMID: 38104242 DOI: 10.1002/adhm.202303125] [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: 09/17/2023] [Revised: 12/07/2023] [Indexed: 12/19/2023]
Abstract
Hyaluronic acid (HA) is a glycosaminoglycan in the extracellular matrix with immunoregulatory properties depending on its molecular weight (MW). However, the impact of matrix-bound HA on dendritic cells (DCs) remains unclear due to varying distribution of HA MW under different physiological conditions. To investigate DCs in defined biosystems, 3D collagen matrices modified with HA of specific MW with similar microstructure and HA levels are used. It is found that HA MW influences cytokine binding to matrix, suggesting modulation of cytokine availability by the different HA MWs. These studies on DC immune potency reveal that low MW HA (8-15 kDa) enhances immature DC differentiation and antigen uptake, while medium (MMW-HA; 500-750 kDa) and high MW HA (HMW-HA; 1250-1500 kDa) increase cytokine secretion in mature DCs. The effect on DC phenotype and cytokine secretion by different MWs of HA is independent of CD44. However, blocking the CD44 receptor reveals its potential role in regulating acute inflammation through increased secretion of CCL2, CXCL8, and IL-6. Additionally, MMW- and HMW-HA matrices reduce migratory capacity of DCs, dependent on CD44. Overall, these findings provide insights into MW-dependent effects of matrix-bound HA on DCs, opening avenues for the design of DC-modulating materials to enhance DC-based therapy.
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Affiliation(s)
- Brian Chesney Quartey
- Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, Abu Dhabi, 129188, UAE
- Department of Biomedical Engineering, Tandon School of Engineering, New York University, 6 MetroTech Center, Brooklyn, NY, 11201, USA
| | - Jiranuwat Sapudom
- Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, Abu Dhabi, 129188, UAE
| | - Mei ElGindi
- Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, Abu Dhabi, 129188, UAE
| | - Aseel Alatoom
- Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, Abu Dhabi, 129188, UAE
- Department of Mechanical Engineering, Tandon School of Engineering, New York University, 6 MetroTech Center, Brooklyn, 11201, USA
| | - Jeremy Teo
- Laboratory for Immuno Bioengineering Research and Applications, Division of Engineering, New York University Abu Dhabi, Abu Dhabi, 129188, UAE
- Department of Mechanical Engineering, Tandon School of Engineering, New York University, 6 MetroTech Center, Brooklyn, 11201, USA
- Department of Biomedical Engineering, Tandon School of Engineering, New York University, 6 MetroTech Center, Brooklyn, NY, 11201, USA
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24
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Kari S, Bucciarelli F, Angles T, Oster AC, Cauboue P, Laviolette K, Mougenot M, Morandi E, Bernard I, Pignolet B, Bost C, Thomas J, Nogueira L, Saoudi A, Liblau R, Astier AL. Increased levels of circulating soluble CD226 in multiple sclerosis. Mult Scler 2024:13524585241234489. [PMID: 38424741 DOI: 10.1177/13524585241234489] [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] [Indexed: 03/02/2024]
Abstract
BACKGROUND The glycoprotein CD226 plays a key role in regulating immune cell function. Soluble CD226 (sCD226) is increased in sera of patients with several chronic inflammatory diseases but its levels in neuroinflammatory diseases such as multiple sclerosis (MS) are unknown. OBJECTIVE To investigate the presence and functional implications of sCD226 in persons with multiple sclerosis (pwMS) and other neurological diseases. METHODS The mechanisms of sCD226 production were first investigated by analyzing CD226 surface expression levels and supernatants of CD3/CD226-coactivated T cells. The role of sCD226 on dendritic cell maturation was evaluated. The concentration of sCD226 in the sera from healthy donors (HD), pwMS, neuromyelitis optica (NMO), and Alzheimer's disease (AD) was measured. RESULTS CD3/CD226-costimulation induced CD226 shedding. Addition of sCD226 to dendritic cells during their maturation led to an increased production of the pro-inflammatory cytokine interleukin (IL)-23. We observed a significant increase in sCD226 in sera from pwMS and NMO compared to HD and AD. In MS, levels were increased in both relapsing-remitting multiple sclerosis (RRMS) and secondary-progressive multiple sclerosis (SPMS) compared to clinically isolated syndrome (CIS). CONCLUSION Our data suggest that T-cell activation leads to release of sCD226 that could promote inflammation and raises the possibility of using sCD226 as a biomarker for neuroinflammation.
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Affiliation(s)
- Saniya Kari
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Florence Bucciarelli
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Thibault Angles
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Anne-Cecile Oster
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Pauline Cauboue
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Karl Laviolette
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Madeline Mougenot
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Elena Morandi
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Isabelle Bernard
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Beatrice Pignolet
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
- CRC-SEP, Neurosciences Department, Toulouse University Hospital, Toulouse, France
| | - Chloé Bost
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
- Immunology Department Laboratory, Institut Fédératif de Biologie, Toulouse University Hospital Center, Toulouse, France
| | - Joelle Thomas
- CNRS UMR-5284, INSERM U-1314, MeLiS, Institut NeuroMyoGène, Universite de Lyon-Université Claude Bernard Lyon 1, Lyon, France
| | - Leonor Nogueira
- Laboratory of Cell Biology and Cytology, Toulouse University Hospital, Toulouse, France
| | - Abdelhadi Saoudi
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Roland Liblau
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
| | - Anne L Astier
- Toulouse Institute for Infectious and Inflammatory Diseases (INFINITY), INSERM UMR1291, CNRS UMR5051, Université Toulouse III, Toulouse Cedex 3, France
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25
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Pearson JA, Hu Y, Peng J, Wong FS, Wen L. TLR5-deficiency controls dendritic cell subset development in an autoimmune diabetes-susceptible model. Front Immunol 2024; 15:1333967. [PMID: 38482010 PMCID: PMC10935730 DOI: 10.3389/fimmu.2024.1333967] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/06/2024] [Indexed: 03/17/2024] Open
Abstract
Introduction The incidence of the autoimmune disease, type 1 diabetes (T1D), has been increasing worldwide and recent studies have shown that the gut microbiota are associated with modulating susceptibility to T1D. Toll-like receptor 5 (TLR5) recognizes bacterial flagellin and is widely expressed on many cells, including dendritic cells (DCs), which are potent antigen-presenting cells (APCs). TLR5 modulates susceptibility to obesity and alters metabolism through gut microbiota; however, little is known about the role TLR5 plays in autoimmunity, especially in T1D. Methods To fill this knowledge gap, we generated a TLR5-deficient non-obese diabetic (NOD) mouse, an animal model of human T1D, for study. Results We found that TLR5-deficiency led to a reduction in CD11c+ DC development in utero, prior to microbial colonization, which was maintained into adulthood. This was associated with a bias in the DC populations expressing CD103, with or without CD8α co-expression, and hyper-secretion of different cytokines, both in vitro (after stimulation) and directly ex vivo. We also found that TLR5-deficient DCs were able to promote polyclonal and islet antigen-specific CD4+ T cell proliferation and proinflammatory cytokine secretion. Interestingly, only older TLR5-deficient NOD mice had a greater risk of developing spontaneous T1D compared to wild-type mice. Discussion In summary, our data show that TLR5 modulates DC development and enhances cytokine secretion and diabetogenic CD4+ T cell responses. Further investigation into the role of TLR5 in DC development and autoimmune diabetes may give additional insights into the pathogenesis of Type 1 diabetes.
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Affiliation(s)
- James Alexander Pearson
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT, United States
- Diabetes Research Group, Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Youjia Hu
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT, United States
| | - Jian Peng
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT, United States
| | - F. Susan Wong
- Diabetes Research Group, Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Li Wen
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT, United States
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26
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Xu B, Anderson BM, Mountford SJ, Thompson PE, Mintern JD, Edgington-Mitchell LE. Cathepsin X deficiency alters the processing and localisation of cathepsin L and impairs cleavage of a nuclear cathepsin L substrate. Biol Chem 2024; 0:hsz-2023-0355. [PMID: 38410910 DOI: 10.1515/hsz-2023-0355] [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: 11/29/2023] [Accepted: 02/12/2024] [Indexed: 02/28/2024]
Abstract
Proteases function within sophisticated networks. Altering the activity of one protease can have sweeping effects on other proteases, leading to changes in their activity, structure, specificity, localisation, stability, and expression. Using a suite of chemical tools, we investigated the impact of cathepsin X, a lysosomal cysteine protease, on the activity and expression of other cysteine proteases and their inhibitors in dendritic cells. Among all proteases examined, cathepsin X gene deletion specifically altered cathepsin L levels; pro-cathepsin L and its single chain accumulated while the two-chain form was unchanged. This effect was recapitulated by chemical inhibition of cathepsin X, suggesting a dependence on its catalytic activity. We demonstrated that accumulation of pro- and single chain cathepsin L was not due to a lack of direct cleavage by cathepsin X or altered glycosylation, secretion, or mRNA expression but may result from changes in lysosomal oxidative stress or pH. In the absence of active cathepsin X, nuclear cathepsin L and cleavage of the known nuclear cathepsin L substrate, Lamin B1, were diminished. Thus, cathepsin X activity selectively regulates cathepsin L, which has the potential to impact the degree of cathepsin L proteolysis, the nature of substrates that it cleaves, and the location of cleavage.
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Affiliation(s)
- Bangyan Xu
- Department of Biochemistry & Pharmacology, 2281 Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Parkville, VIC 3052, Australia
| | - Bethany M Anderson
- Department of Biochemistry & Pharmacology, 2281 Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Parkville, VIC 3052, Australia
| | - Simon J Mountford
- Medicinal Chemistry, 2541 Monash Institute of Pharmaceutical Sciences, Monash University , Parkville, VIC 3052, Australia
| | - Philip E Thompson
- Medicinal Chemistry, 2541 Monash Institute of Pharmaceutical Sciences, Monash University , Parkville, VIC 3052, Australia
| | - Justine D Mintern
- Department of Biochemistry & Pharmacology, 2281 Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Parkville, VIC 3052, Australia
| | - Laura E Edgington-Mitchell
- Department of Biochemistry & Pharmacology, 2281 Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne , Parkville, VIC 3052, Australia
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27
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Laksono BM, Sooksawasdi Na Ayudhya S, Aguilar-Bretones M, Embregts CWE, van Nierop GP, van Riel D. Human B cells and dendritic cells are susceptible and permissive to enterovirus D68 infection. mSphere 2024; 9:e0052623. [PMID: 38259063 PMCID: PMC10900886 DOI: 10.1128/msphere.00526-23] [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: 09/12/2023] [Accepted: 12/19/2023] [Indexed: 01/24/2024] Open
Abstract
Enterovirus D68 (EV-D68) is predominantly associated with mild respiratory infections, but can also cause severe respiratory disease and extra-respiratory complications, including acute flaccid myelitis. Systemic dissemination of EV-D68 is crucial for the development of extra-respiratory diseases, but it is currently unclear how EV-D68 spreads systemically (viremia). We hypothesize that immune cells contribute to the systemic dissemination of EV-D68, as this is a mechanism commonly used by other enteroviruses. Therefore, we investigated the susceptibility and permissiveness of human primary immune cells for different EV-D68 isolates. In human peripheral blood mononuclear cells inoculated with EV-D68, only B cells were susceptible but virus replication was limited. However, in B cell-rich cultures, such as Epstein-Barr virus-transformed B-lymphoblastoid cell line (BLCL) and primary lentivirus-transduced B cells, which better represent lymphoid B cells, were productively infected. Subsequently, we showed that dendritic cells (DCs), particularly immature DCs, are susceptible and permissive for EV-D68 infection and that they can spread EV-D68 to autologous BLCL. Altogether, our findings suggest that immune cells, especially B cells and DCs, could play an important role in the pathogenesis of EV-D68 infection. Infection of these cells may contribute to systemic dissemination of EV-D68, which is an essential step toward the development of extra-respiratory complications.IMPORTANCEEnterovirus D68 (EV-D68) is an emerging respiratory virus that has caused outbreaks worldwide since 2014. EV-D68 infects primarily respiratory epithelial cells resulting in mild respiratory diseases. However, EV-D68 infection is also associated with extra-respiratory complications, including polio-like paralysis. It is unclear how EV-D68 spreads systemically and infects other organs. We hypothesized that immune cells could play a role in the extra-respiratory spread of EV-D68. We showed that EV-D68 can infect and replicate in specific immune cells, that is, B cells and dendritic cells (DCs), and that virus could be transferred from DCs to B cells. Our data reveal a potential role of immune cells in the pathogenesis of EV-D68 infection. Intervention strategies that prevent EV-D68 infection of immune cells will therefore potentially prevent systemic spread of virus and thereby severe extra-respiratory complications.
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Affiliation(s)
| | | | | | | | | | - Debby van Riel
- Department of Viroscience, Erasmus MC, Rotterdam, the Netherlands
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28
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Haghayegh Jahromi N, Gkountidi AO, Collado-Diaz V, Blatter K, Bauer A, Zambounis L, Medina-Sanchez JD, Russo E, Runge P, Restivo G, Gousopoulos E, Lindenblatt N, Levesque MP, Halin C. CD112 Supports Lymphatic Migration of Human Dermal Dendritic Cells. Cells 2024; 13:424. [PMID: 38474388 DOI: 10.3390/cells13050424] [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: 10/30/2023] [Revised: 02/02/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
Dendritic cell (DC) migration from peripheral tissues via afferent lymphatic vessels to draining lymph nodes (dLNs) is important for the organism's immune regulation and immune protection. Several lymphatic endothelial cell (LEC)-expressed adhesion molecules have thus far been found to support transmigration and movement within the lymphatic vasculature. In this study, we investigated the contribution of CD112, an adhesion molecule that we recently found to be highly expressed in murine LECs, to this process. Performing in vitro assays in the murine system, we found that transmigration of bone marrow-derived dendritic cells (BM-DCs) across or adhesion to murine LEC monolayers was reduced when CD112 was absent on LECs, DCs, or both cell types, suggesting the involvement of homophilic CD112-CD112 interactions. While CD112 was highly expressed in murine dermal LECs, CD112 levels were low in endogenous murine dermal DCs and BM-DCs. This might explain why we observed no defect in the in vivo lymphatic migration of adoptively transferred BM-DCs or endogenous DCs from the skin to dLNs. Compared to murine DCs, human monocyte-derived DCs expressed higher CD112 levels, and their migration across human CD112-expressing LECs was significantly reduced upon CD112 blockade. CD112 expression was also readily detected in endogenous human dermal DCs and LECs by flow cytometry and immunofluorescence. Upon incubating human skin punch biopsies in the presence of CD112-blocking antibodies, DC emigration from the tissue into the culture medium was significantly reduced, indicating impaired lymphatic migration. Overall, our data reveal a contribution of CD112 to human DC migration.
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Affiliation(s)
- Neda Haghayegh Jahromi
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Anastasia-Olga Gkountidi
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Victor Collado-Diaz
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Katharina Blatter
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Aline Bauer
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Lito Zambounis
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | | | - Erica Russo
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Peter Runge
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Gaetana Restivo
- Department of Dermatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland
| | - Epameinondas Gousopoulos
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
| | - Nicole Lindenblatt
- Department of Plastic Surgery and Hand Surgery, University Hospital Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
| | - Mitchell P Levesque
- Department of Dermatology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland
| | - Cornelia Halin
- Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
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Pereira M, Ramalho T, Andrade WA, Durso DF, Souza MC, Fitzgerald KA, Golenbock DT, Silverman N, Gazzinelli RT. The IRAK1/IRF5 axis initiates IL-12 response by dendritic cells and control of Toxoplasma gondii infection. Cell Rep 2024; 43:113795. [PMID: 38367238 DOI: 10.1016/j.celrep.2024.113795] [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: 09/12/2023] [Revised: 12/19/2023] [Accepted: 01/30/2024] [Indexed: 02/19/2024] Open
Abstract
Activation of endosomal Toll-like receptor (TLR) 7, TLR9, and TLR11/12 is a key event in the resistance against the parasite Toxoplasma gondii. Endosomal TLR engagement leads to expression of interleukin (IL)-12 via the myddosome, a protein complex containing MyD88 and IL-1 receptor-associated kinase (IRAK) 4 in addition to IRAK1 or IRAK2. In murine macrophages, IRAK2 is essential for IL-12 production via endosomal TLRs but, surprisingly, Irak2-/- mice are only slightly susceptible to T. gondii infection, similar to Irak1-/- mice. Here, we report that upon T. gondii infection IL-12 production by different cell populations requires either IRAK1 or IRAK2, with conventional dendritic cells (DCs) requiring IRAK1 and monocyte-derived DCs (MO-DCs) requiring IRAK2. In both populations, we identify interferon regulatory factor 5 as the main transcription factor driving the myddosome-dependent IL-12 production during T. gondii infection. Consistent with a redundant role of DCs and MO-DCs, mutations that affect IL-12 production in both cell populations show high susceptibility to infection in vivo.
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Affiliation(s)
- Milton Pereira
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA.
| | - Theresa Ramalho
- Department of Molecular, Cell, and Cancer Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Warrison A Andrade
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Danielle F Durso
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Maria C Souza
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Katherine A Fitzgerald
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Douglas T Golenbock
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Neal Silverman
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Ricardo T Gazzinelli
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA; Centro de Tecnologia de Vacinas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil.
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30
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Parsons BD, Medina-Luna D, Scur M, Pinelli M, Gamage GS, Chilvers RA, Hamon Y, Ahmed IHI, Savary S, Makrigiannis AP, Braverman NE, Rodriguez-Alcazar JF, Latz E, Karakach TK, Di Cara F. Peroxisome deficiency underlies failures in hepatic immune cell development and antigen presentation in a severe Zellweger disease model. Cell Rep 2024; 43:113744. [PMID: 38329874 DOI: 10.1016/j.celrep.2024.113744] [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: 11/10/2023] [Revised: 12/21/2023] [Accepted: 01/18/2024] [Indexed: 02/10/2024] Open
Abstract
Peroxisome biogenesis disorders (PBDs) represent a group of metabolic conditions that cause severe developmental defects. Peroxisomes are essential metabolic organelles, present in virtually every eukaryotic cell and mediating key processes in immunometabolism. To date, the full spectrum of PBDs remains to be identified, and the impact PBDs have on immune function is unexplored. This study presents a characterization of the hepatic immune compartment of a neonatal PBD mouse model at single-cell resolution to establish the importance and function of peroxisomes in developmental hematopoiesis. We report that hematopoietic defects are a feature in a severe PBD murine model. Finally, we identify a role for peroxisomes in the regulation of the major histocompatibility class II expression and antigen presentation to CD4+ T cells in dendritic cells. This study adds to our understanding of the mechanisms of PBDs and expands our knowledge of the role of peroxisomes in immunometabolism.
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Affiliation(s)
- Brendon D Parsons
- University of Alberta, Department of Laboratory Medicine and Pathology, Edmonton, AB T6G 1C9, Canada
| | - Daniel Medina-Luna
- Dalhousie University, Department of Microbiology and Immunology, Halifax, NS B3K 6R8, Canada
| | - Michal Scur
- Dalhousie University, Department of Microbiology and Immunology, Halifax, NS B3K 6R8, Canada
| | - Marinella Pinelli
- Dalhousie University, Department of Microbiology and Immunology, Halifax, NS B3K 6R8, Canada
| | - Gayani S Gamage
- Dalhousie University, Department of Microbiology and Immunology, Halifax, NS B3K 6R8, Canada
| | - Rebecca A Chilvers
- Dalhousie University, Department of Microbiology and Immunology, Halifax, NS B3K 6R8, Canada
| | - Yannick Hamon
- Aix Marseille University, CNRS, INSERM au Centre d'Immunologie de Marseille Luminy, 13288 Marseille, France
| | - Ibrahim H I Ahmed
- Dalhousie University, Department of Pharmacology, Halifax, NS B3H 4R2, Canada; Beatrice Hunter Cancer Research Institute, Halifax, NS, Canada
| | - Stéphane Savary
- University of Bourgogne, Laboratoire Bio-PeroxIL EA7270, Dijon, France
| | - Andrew P Makrigiannis
- Dalhousie University, Department of Microbiology and Immunology, Halifax, NS B3K 6R8, Canada; Beatrice Hunter Cancer Research Institute, Halifax, NS, Canada
| | - Nancy E Braverman
- Research Institute of the McGill University Children's Hospital, Montreal, QC H4A 3J1, Canada
| | | | - Eicke Latz
- University of Bonn, Institute of Innate Immunity, Medical Faculty, 53127 Bonn, Germany
| | - Tobias K Karakach
- Dalhousie University, Department of Pharmacology, Halifax, NS B3H 4R2, Canada; Beatrice Hunter Cancer Research Institute, Halifax, NS, Canada
| | - Francesca Di Cara
- University of Alberta, Department of Laboratory Medicine and Pathology, Edmonton, AB T6G 1C9, Canada; Beatrice Hunter Cancer Research Institute, Halifax, NS, Canada.
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31
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Bashore AC, Yan H, Xue C, Zhu LY, Kim E, Mawson T, Coronel J, Chung A, Sachs N, Ho S, Ross LS, Kissner M, Passegué E, Bauer RC, Maegdefessel L, Li M, Reilly MP. High-Dimensional Single-Cell Multimodal Landscape of Human Carotid Atherosclerosis. Arterioscler Thromb Vasc Biol 2024. [PMID: 38385291 DOI: 10.1161/atvbaha.123.320524] [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: 12/02/2023] [Accepted: 02/06/2024] [Indexed: 02/23/2024]
Abstract
BACKGROUND Atherosclerotic plaques are complex tissues composed of a heterogeneous mixture of cells. However, our understanding of the comprehensive transcriptional and phenotypic landscape of the cells within these lesions is limited. METHODS To characterize the landscape of human carotid atherosclerosis in greater detail, we combined cellular indexing of transcriptomes and epitopes by sequencing and single-cell RNA sequencing to classify all cell types within lesions (n=21; 13 symptomatic) to achieve a comprehensive multimodal understanding of the cellular identities of atherosclerosis and their association with clinical pathophysiology. RESULTS We identified 25 cell populations, each with a unique multiomic signature, including macrophages, T cells, NK cells, mast cells, B cells, plasma cells, neutrophils, dendritic cells, endothelial cells, fibroblasts, and smooth muscle cells (SMCs). Among the macrophages, we identified 2 proinflammatory subsets enriched in IL-1B (interleukin-1B) or C1Q expression, 2 TREM2-positive foam cells (1 expressing inflammatory genes), and subpopulations with a proliferative gene signature and SMC-specific gene signature with fibrotic pathways upregulated. Further characterization revealed various subsets of SMCs and fibroblasts, including SMC-derived foam cells. These foamy SMCs were localized in the deep intima of coronary atherosclerotic lesions. Utilizing cellular indexing of transcriptomes and epitopes by sequencing data, we developed a flow cytometry panel, using cell surface proteins CD29, CD142, and CD90, to isolate SMC-derived cells from lesions. Lastly, we observed reduced proportions of efferocytotic macrophages, classically activated endothelial cells, and contractile and modulated SMC-derived cells, while inflammatory SMCs were enriched in plaques of clinically symptomatic versus asymptomatic patients. CONCLUSIONS Our multimodal atlas of cell populations within atherosclerosis provides novel insights into the diversity, phenotype, location, isolation, and clinical relevance of the unique cellular composition of human carotid atherosclerosis. These findings facilitate both the mapping of cardiovascular disease susceptibility loci to specific cell types and the identification of novel molecular and cellular therapeutic targets for the treatment of the disease.
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Affiliation(s)
- Alexander C Bashore
- Division of Cardiology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY (A.C.B., C.X., L.Y.Z., E.K., T.M., J.C., A.C., S.H., L.S.R., R.C.B., M.P.R.)
| | - Hanying Yan
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia (H.Y., M.L.)
| | - Chenyi Xue
- Division of Cardiology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY (A.C.B., C.X., L.Y.Z., E.K., T.M., J.C., A.C., S.H., L.S.R., R.C.B., M.P.R.)
| | - Lucie Y Zhu
- Division of Cardiology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY (A.C.B., C.X., L.Y.Z., E.K., T.M., J.C., A.C., S.H., L.S.R., R.C.B., M.P.R.)
| | - Eunyoung Kim
- Division of Cardiology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY (A.C.B., C.X., L.Y.Z., E.K., T.M., J.C., A.C., S.H., L.S.R., R.C.B., M.P.R.)
| | - Thomas Mawson
- Division of Cardiology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY (A.C.B., C.X., L.Y.Z., E.K., T.M., J.C., A.C., S.H., L.S.R., R.C.B., M.P.R.)
| | - Johana Coronel
- Division of Cardiology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY (A.C.B., C.X., L.Y.Z., E.K., T.M., J.C., A.C., S.H., L.S.R., R.C.B., M.P.R.)
| | - Allen Chung
- Division of Cardiology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY (A.C.B., C.X., L.Y.Z., E.K., T.M., J.C., A.C., S.H., L.S.R., R.C.B., M.P.R.)
| | - Nadja Sachs
- Department of Vascular and Endovascular Surgery, Technical University Munich, Germany (N.S., L.M.)
| | - Sebastian Ho
- Division of Cardiology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY (A.C.B., C.X., L.Y.Z., E.K., T.M., J.C., A.C., S.H., L.S.R., R.C.B., M.P.R.)
| | - Leila S Ross
- Division of Cardiology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY (A.C.B., C.X., L.Y.Z., E.K., T.M., J.C., A.C., S.H., L.S.R., R.C.B., M.P.R.)
| | - Michael Kissner
- Columbia Stem Cell Initiative, Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY. (M.K., E.P.)
| | - Emmanuelle Passegué
- Columbia Stem Cell Initiative, Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY. (M.K., E.P.)
| | - Robert C Bauer
- Division of Cardiology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY (A.C.B., C.X., L.Y.Z., E.K., T.M., J.C., A.C., S.H., L.S.R., R.C.B., M.P.R.)
| | - Lars Maegdefessel
- Department of Vascular and Endovascular Surgery, Technical University Munich, Germany (N.S., L.M.)
- German Center for Cardiovascular Research, Partner Site Munich Heart Alliance (L.M.)
| | - Mingyao Li
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia (H.Y., M.L.)
| | - Muredach P Reilly
- Division of Cardiology, Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY (A.C.B., C.X., L.Y.Z., E.K., T.M., J.C., A.C., S.H., L.S.R., R.C.B., M.P.R.)
- Irving Institute for Clinical and Translational Research, Columbia University Irving Medical Center, New York, NY. (M.P.R.)
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Thiele RJ, Grünhagel B, Muenchhoff M, Pujantell-Graell M, Jocham L, Düsedau A, Hennesen J, Hildebrandt H, Hagen SH, Sandfort D, Bunders MJ, Keppler OT, Hoffmann C, Altfeld M. Magnitude of Type I Interferon Responses by Plasmacytoid Dendritic Cells After TLR7 Stimulation Is Associated With Human Immunodeficiency Virus Type 1 (HIV-1) Reservoir Sizes in Cisgender Women With HIV-1 on Antiretroviral Therapy. J Infect Dis 2024:jiae013. [PMID: 38385222 DOI: 10.1093/infdis/jiae013] [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: 07/04/2023] [Indexed: 02/23/2024] Open
Abstract
Human immunodeficiency virus type 1 (HIV-1) disease manifestations differ between cisgender women and men, including better control of viral replication during primary infection and less frequent residual HIV-1 replication on antiretroviral therapy (ART) in cisgender women with HIV-1 (WWH). Investigating plasmacytoid dendritic cell (pDC) functions and HIV-1 reservoir sizes in 20 WWH on stable ART, we observed inverse correlations between interferon-α and tumor necrosis factor responses of pDCs to Toll-like receptor 7/8 stimulation and intact/total proviral HIV-1 DNA levels. Additionally, ISG15 mRNA levels in peripheral blood mononuclear cells correlated with cytokine responses of pDCs. These findings demonstrate an association between higher type I interferon responses and lower HIV-1 reservoir sizes in WWH on ART, warranting studies to identify the underlying mechanisms.
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Affiliation(s)
- Rebecca-Jo Thiele
- Department of Virus Immunology, Leibniz Institute of Virology, Hamburg
| | | | - Maximilian Muenchhoff
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich
- German Centre for Infection Research, Hamburg and Munich
| | | | - Linda Jocham
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich
- German Centre for Infection Research, Hamburg and Munich
| | - Arne Düsedau
- Department of Virus Immunology, Leibniz Institute of Virology, Hamburg
| | - Jana Hennesen
- Department of Virus Immunology, Leibniz Institute of Virology, Hamburg
| | - Heike Hildebrandt
- Department of Virus Immunology, Leibniz Institute of Virology, Hamburg
| | | | - Deborah Sandfort
- Department of Virus Immunology, Leibniz Institute of Virology, Hamburg
| | - Madeleine J Bunders
- Department of Virus Immunology, Leibniz Institute of Virology, Hamburg
- Center for Internal Medicine, III Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg
| | - Oliver T Keppler
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Faculty of Medicine, LMU München, Munich
- German Centre for Infection Research, Hamburg and Munich
| | | | - Marcus Altfeld
- Department of Virus Immunology, Leibniz Institute of Virology, Hamburg
- German Centre for Infection Research, Hamburg and Munich
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33
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Koeneman BJ, Schreibelt G, Gorris MAJ, Hins - de Bree S, Westdorp H, Ottevanger PB, de Vries IJM. Dendritic cell vaccination combined with carboplatin/paclitaxel for metastatic endometrial cancer patients: results of a phase I/II trial. Front Immunol 2024; 15:1368103. [PMID: 38444861 PMCID: PMC10912556 DOI: 10.3389/fimmu.2024.1368103] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 02/02/2024] [Indexed: 03/07/2024] Open
Abstract
Background Metastatic endometrial cancer (mEC) continues to have a poor prognosis despite the introduction of several novel therapies including immune checkpoints inhibitors. Dendritic cell (DC) vaccination is known to be a safe immunotherapeutic modality that can induce immunological and clinical responses in patients with solid tumors. Platinum-based chemotherapy is known to act synergistically with immunotherapy by selectively depleting suppressive immune cells. Therefore, we investigated the immunological efficacy of combined chemoimmunotherapy with an autologous DC vaccine and carboplatin/paclitaxel chemotherapy. Study design This is a prospective, exploratory, single-arm phase I/II study (NCT04212377) in 7 patients with mEC. The DC vaccine consisted of blood-derived conventional and plasmacytoid dendritic cells, loaded with known mEC antigens Mucin-1 and Survivin. Chemotherapy consisted of carboplatin/paclitaxel, given weekly for 6 cycles and three-weekly for 3 cycles. The primary endpoint was immunological vaccine efficacy; secondary endpoints were safety and feasibility. Results Production of DC vaccines was successful in five out of seven patients. These five patients started study treatment and all were able to complete the entire treatment schedule. Antigen-specific responses could be demonstrated in two of the five patients who were treated. All patients had at least one adverse event grade 3 or higher. Treatment-related adverse events grade ≥3 were related to chemotherapy rather than DC vaccination; neutropenia was most common. Suppressive myeloid cells were selectively depleted in peripheral blood after chemotherapy. Conclusion DC vaccination can be safely combined with carboplatin/paclitaxel in patients with metastatic endometrial cancer and induces antigen-specific responses in a minority of patients. Longitudinal immunological phenotyping is suggestive of a synergistic effect of the combination.
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Affiliation(s)
- Bouke J. Koeneman
- Department of Medical BioSciences, Radboudumc, Nijmegen, Netherlands
- Department of Medical Oncology, Radboudumc, Nijmegen, Netherlands
| | - Gerty Schreibelt
- Department of Medical BioSciences, Radboudumc, Nijmegen, Netherlands
| | - Mark A. J. Gorris
- Department of Medical BioSciences, Radboudumc, Nijmegen, Netherlands
| | | | - Harm Westdorp
- Department of Medical BioSciences, Radboudumc, Nijmegen, Netherlands
- Department of Medical Oncology, Radboudumc, Nijmegen, Netherlands
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Okwuone DDD, Morgan D, Gan GN. Exploring the function of myeloid cells in promoting metastasis in head and neck cancer. Explor Target Antitumor Ther 2024; 5:108-119. [PMID: 38468824 PMCID: PMC10925485 DOI: 10.37349/etat.2024.00208] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/29/2023] [Indexed: 03/13/2024] Open
Abstract
Head and neck cancer (HNC) is a challenging disease that lacks effective treatment, particularly in the cases that spread locoregionally and metastasize distantly, dramatically reducing patient survival rates. Expanding the understanding of the mechanisms of the metastatic cascade is critical for creating more effective therapeutics that improve outcomes for HNC patients. A true grasp of cancer metastasis requires the consideration of all cell types that contribute to the inflammatory HNC microenvironment as drivers of this process. More emphasis now is being placed on exploring the roles of the different immune cells in cancer control, tumorigenesis and metastasis. Myeloid cells are the most numerous immune cell types in the body, and they are actively recruited and reprogrammed by tumor cells to behave in a variety of ways. These cells are remarkably diverse in phenotype and function, and the part they play in tumor spread greatly differs based on the cell type. This review will focus on summarizing the roles of macrophages, neutrophils, myeloid derived suppressor cells (MDSCs), and dendritic cells (DCs) in driving HNC metastasis by examining the current knowledge base and offering potential new routes through which to target and treat this deadly process.
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Affiliation(s)
| | - Deri Morgan
- Department of Radiation Oncology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Gregory N. Gan
- Department of Cancer Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
- Department of Radiation Oncology, University of Kansas Medical Center, Kansas City, KS 66160, USA
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35
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Hu H, Zhang M. Correlation analysis between peripheral blood dendritic cell subsets and PD-1 in patients with peritoneal adenocarcinoma. Braz J Med Biol Res 2024; 57:e13192. [PMID: 38381884 PMCID: PMC10880883 DOI: 10.1590/1414-431x2023e13192] [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: 10/23/2023] [Accepted: 12/27/2023] [Indexed: 02/23/2024] Open
Abstract
The aim of this study was to explore the association between differential percentages of dendritic cell (DC) subsets in peripheral blood and malignancy (grade and lymph node metastasis) of peritoneal adenocarcinoma patients and the frequencies of dendritic cell subsets in the normal controls. The peripheral blood of 30 patients with peritoneal adenocarcinoma and 12 healthy controls were collected for multicolor flow cytometry analysis. Peritoneal adenocarcinoma patients were grouped according to the malignant degree (grade and lymph node metastasis). Percentages of myeloid DCs (mDCs) and its subsets MDC1 and MDC2 in DCs were lower in peripheral blood of patients with peritoneal adenocarcinoma than in normal controls. The percentages of plasmacytoid dendritic cells (pDCs) and CD16+mDCs in DCs were higher than in normal controls. Compared with poor differentiation grade, patients with well/moderate differentiation grade had an increased percentage of CD16+mDCs. Contrary to CD16+mDCs, the percentage of MDC1 was lower in the well/moderate differentiation grade group. In patients with no lymph node metastasis, pDCs and CD16+mDCs levels were higher compared with patients with lymph node metastasis. mDCs and MDC1 levels had opposite results. pDCs were positively correlated with CD16+mDCs in peripheral blood of peritoneal patients, as was mDCs and MDC1. CD16+mDCs were negatively correlated with MDC1. The percentages of pDCs and CD16+mDCs in DCs were positively correlated with CD3+CD8+T cells, and pDCs also positively correlated with CD8+PD-1+T cells. Our results revealed that DCs subsets correlated with peritoneal adenocarcinoma malignancy. Dendritic cells play an independent role in the immune function of peritoneal adenocarcinoma.
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Affiliation(s)
- Huihui Hu
- Department of Clinical Laboratory, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Man Zhang
- Department of Clinical Laboratory, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Urinary Cellular Molecular Diagnostics, Beijing, China
- Clinical Laboratory Medicine, Peking University Ninth School of Clinical Medicine, Beijing, China
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Britsch S, Langer H, Duerschmied D, Becher T. The Evolving Role of Dendritic Cells in Atherosclerosis. Int J Mol Sci 2024; 25:2450. [PMID: 38397127 PMCID: PMC10888834 DOI: 10.3390/ijms25042450] [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: 12/06/2023] [Revised: 02/01/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Atherosclerosis, a major contributor to cardiovascular morbidity and mortality, is characterized by chronic inflammation of the arterial wall. This inflammatory process is initiated and maintained by both innate and adaptive immunity. Dendritic cells (DCs), which are antigen-presenting cells, play a crucial role in the development of atherosclerosis and consist of various subtypes with distinct functional abilities. Following the recognition and binding of antigens, DCs become potent activators of cellular responses, bridging the innate and adaptive immune systems. The modulation of specific DC subpopulations can have either pro-atherogenic or atheroprotective effects, highlighting the dual pro-inflammatory or tolerogenic roles of DCs. In this work, we provide a comprehensive overview of the evolving roles of DCs and their subtypes in the promotion or limitation of atherosclerosis development. Additionally, we explore antigen pulsing and pharmacological approaches to modulate the function of DCs in the context of atherosclerosis.
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Affiliation(s)
- Simone Britsch
- Department of Cardiology, Angiology, Haemostaseology and Medical Intensive Care, Centre for Acute Cardiovascular Medicine Mannheim (ZKAM), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, 69117 Mannheim, Germany; (H.L.); (D.D.); (T.B.)
- German Centre for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 13092 Mannheim, Germany
- European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Harald Langer
- Department of Cardiology, Angiology, Haemostaseology and Medical Intensive Care, Centre for Acute Cardiovascular Medicine Mannheim (ZKAM), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, 69117 Mannheim, Germany; (H.L.); (D.D.); (T.B.)
- German Centre for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 13092 Mannheim, Germany
- European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Daniel Duerschmied
- Department of Cardiology, Angiology, Haemostaseology and Medical Intensive Care, Centre for Acute Cardiovascular Medicine Mannheim (ZKAM), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, 69117 Mannheim, Germany; (H.L.); (D.D.); (T.B.)
- German Centre for Cardiovascular Research (DZHK), Partner Site Heidelberg/Mannheim, 13092 Mannheim, Germany
- European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Tobias Becher
- Department of Cardiology, Angiology, Haemostaseology and Medical Intensive Care, Centre for Acute Cardiovascular Medicine Mannheim (ZKAM), University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, 69117 Mannheim, Germany; (H.L.); (D.D.); (T.B.)
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Hawiger D. Emerging T cell immunoregulatory mechanisms in multiple sclerosis and Alzheimer's disease. Front Aging Neurosci 2024; 16:1350240. [PMID: 38435400 PMCID: PMC10904586 DOI: 10.3389/fnagi.2024.1350240] [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: 12/05/2023] [Accepted: 01/31/2024] [Indexed: 03/05/2024] Open
Abstract
Multiple sclerosis (MS) and Alzheimer's disease (AD) are neuroinflammatory and neurodegenerative diseases with considerable socioeconomic impacts but without definitive treatments. AD and MS have multifactorial pathogenesis resulting in complex cognitive and neurologic symptoms and growing evidence also indicates key functions of specific immune cells. Whereas relevant processes dependent on T cells have been elucidated in both AD and MS, mechanisms that can control such immune responses still remain elusive. Here, a brief overview of select recent findings clarifying immunomodulatory mechanisms specifically induced by tolerogenic dendritic cells to limit the activation and functions of neurodegenerative T cells is presented. These insights could become a foundation for new cutting-edge research as well as therapeutic strategies.
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Affiliation(s)
- Daniel Hawiger
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St. Louis, MO, United States
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38
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Lv D, Jiang H, Yang X, Li Y, Niu W, Zhang D. Advances in understanding of dendritic cell in the pathogenesis of acute kidney injury. Front Immunol 2024; 15:1294807. [PMID: 38433836 PMCID: PMC10904453 DOI: 10.3389/fimmu.2024.1294807] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 02/05/2024] [Indexed: 03/05/2024] Open
Abstract
Acute kidney injury (AKI) is characterized by a rapid decline in renal function and is associated with a high morbidity and mortality rate. At present, the underlying mechanisms of AKI remain incompletely understood. Immune disorder is a prominent feature of AKI, and dendritic cells (DCs) play a pivotal role in orchestrating both innate and adaptive immune responses, including the induction of protective proinflammatory and tolerogenic immune reactions. Emerging evidence suggests that DCs play a critical role in the initiation and development of AKI. This paper aimed to conduct a comprehensive review and analysis of the role of DCs in the progression of AKI and elucidate the underlying molecular mechanism. The ultimate objective was to offer valuable insights and guidance for the treatment of AKI.
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Affiliation(s)
- Dongfang Lv
- College of First Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Huihui Jiang
- Clinical Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xianzhen Yang
- Department of Urology, Afliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yi Li
- Department of Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- Engineering Laboratory of Urinary Organ and Functional Reconstruction of Shandong Province, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Weipin Niu
- Central Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
- Shandong Key Laboratory of Dominant Diseases of traditional Chinese Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Denglu Zhang
- Central Laboratory, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
- Shandong Key Laboratory of Dominant Diseases of traditional Chinese Medicine, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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Thim EA, Kitelinger LE, Rivera-Escalera F, Mathew AS, Elliott MR, Bullock TNJ, Price RJ. Focused ultrasound ablation of melanoma with boiling histotripsy yields abscopal tumor control and antigen-dependent dendritic cell activation. Theranostics 2024; 14:1647-1661. [PMID: 38389838 PMCID: PMC10879863 DOI: 10.7150/thno.92089] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/04/2024] [Indexed: 02/24/2024] Open
Abstract
Background: Boiling histotripsy (BH), a mechanical focused ultrasound ablation strategy, can elicit intriguing signatures of anti-tumor immunity. However, the influence of BH on dendritic cell function is unknown, compromising our ability to optimally combine BH with immunotherapies to control metastatic disease. Methods: BH was applied using a sparse scan (1 mm spacing between sonications) protocol to B16F10-ZsGreen melanoma in bilateral and unilateral settings. Ipsilateral and contralateral tumor growth was measured. Flow cytometry was used to track ZsGreen antigen and assess how BH drives dendritic cell behavior. Results: BH monotherapy elicited ipsilateral and abscopal tumor control in this highly aggressive model. Tumor antigen presence in immune cells in the tumor-draining lymph nodes (TDLNs) was ~3-fold greater at 24h after BH, but this abated by 96h. B cells, macrophages, monocytes, granulocytes, and both conventional dendritic cell subsets (i.e. cDC1s and cDC2s) acquired markedly more antigen with BH. BH drove activation of both cDC subsets, with activation being dependent upon tumor antigen acquisition. Our data also suggest that BH-liberated tumor antigen is complexed with damage-associated molecular patterns (DAMPs) and that cDCs do not traffic to the TDLN with antigen. Rather, they acquire antigen as it flows through afferent lymph vessels into the TDLN. Conclusion: When applied with a sparse scan protocol, BH monotherapy elicits abscopal melanoma control and shapes dendritic cell function through several previously unappreciated mechanisms. These results offer new insight into how to best combine BH with immunotherapies for the treatment of metastatic melanoma.
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Affiliation(s)
- Eric A. Thim
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, USA
| | - Lydia E. Kitelinger
- Department of Pathology, University of Virginia, Charlottesville, VA 22908, USA
| | - Fátima Rivera-Escalera
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, VA 22908, USA
| | - Alexander S. Mathew
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, USA
| | - Michael R. Elliott
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, VA 22908, USA
| | | | - Richard J. Price
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22908, USA
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Toffoli EC, van Vliet AA, Forbes C, Arns AJ, Verheul HWM, Tuynman J, van der Vliet HJ, Spanholtz J, de Gruijl TD. Allogeneic NK cells induce the in vitro activation of monocyte-derived and conventional type-2 dendritic cells and trigger an inflammatory response under cancer-associated conditions. Clin Exp Immunol 2024:uxae007. [PMID: 38330230 DOI: 10.1093/cei/uxae007] [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: 08/18/2023] [Indexed: 02/10/2024] Open
Abstract
Natural killer (NK) cells are innate lymphocytes capable to recognize and kill virus-infected and cancer cells. In the past years, the use of allogeneic NK cells as anti-cancer therapy gained interest due to their ability to induce graft-versus-cancer responses without causing graft-versus-host disease and multiple protocols have been developed to produce high numbers of activated NK cells. While the ability of these cells to mediate tumor kill has been extensively studied, less is known about their capacity to influence the activity of other immune cells that may contribute to a concerted anti-tumor response in the tumor microenvironment. In this study, we analyzed how an allogeneic off-the-shelf cord blood stem cell-derived NK cell product influenced the activation of dendritic cells (DC). Crosstalk between NK cells and healthy donor monocyte-derived DC (MoDC) resulted in the release of IFNγ and TNF, MoDC activation, and the release of the T-cell-recruiting chemokines CXCL9 and CXCL10. Moreover, in the presence of prostaglandin-E2, NK cell/MoDC crosstalk antagonized the detrimental effect of IL-10 on MoDC maturation leading to higher expression of multiple(co-)stimulatory markers. The NK cells also induced activation of conventional DC2 (cDC2) and CD8+ T cells, and the release of TNF, GM-CSF, and CXCL9/10 in peripheral blood mononuclear cells of patients with metastatic colorectal cancer. The activated phenotype of MoDC/cDC2 and the increased release of pro-inflammatory cytokines and T-cell-recruiting chemokines resulting from NK cell/DC crosstalk should contribute to a more inflamed TME and may thus enhance the efficacy of T-cell based therapies.
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Affiliation(s)
- E C Toffoli
- Department of Medical Oncology, Amsterdam UMC location Vrije Universiteit, De Boelelaan 1117, 1081 HV Amsterdam, the Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam, The Netherlands
- Amsterdam Infection and Immunity Institute, Amsterdam, The Netherlands
| | - A A van Vliet
- Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam, The Netherlands
- Glycostem Therapeutics, 5349 AB Oss, The Netherlands
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC location Vrije Universiteit, De Boelelaan 1117, 1081 HV Amsterdam, the Netherlands
| | - C Forbes
- Department of Medical Oncology, Amsterdam UMC location Vrije Universiteit, De Boelelaan 1117, 1081 HV Amsterdam, the Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam, The Netherlands
- Amsterdam Infection and Immunity Institute, Amsterdam, The Netherlands
| | - A J Arns
- Department of Medical Oncology, Amsterdam UMC location Vrije Universiteit, De Boelelaan 1117, 1081 HV Amsterdam, the Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam, The Netherlands
- Amsterdam Infection and Immunity Institute, Amsterdam, The Netherlands
| | - H W M Verheul
- Erasmus MC University Medical Center, Department of Medical Oncology, 3015 GD, Rotterdam, the Netherlands
| | - J Tuynman
- Department of Surgery, Amsterdam UMC location Vrije Universiteit, De Boelelaan 1117, 1081 HV Amsterdam, the Netherlands
| | - H J van der Vliet
- Department of Medical Oncology, Amsterdam UMC location Vrije Universiteit, De Boelelaan 1117, 1081 HV Amsterdam, the Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam, The Netherlands
- Lava Therapeutics, 3584 CM Utrecht, The Netherlands
| | - J Spanholtz
- Glycostem Therapeutics, 5349 AB Oss, The Netherlands
| | - T D de Gruijl
- Department of Medical Oncology, Amsterdam UMC location Vrije Universiteit, De Boelelaan 1117, 1081 HV Amsterdam, the Netherlands
- Cancer Center Amsterdam, Cancer Biology and Immunology, Amsterdam, The Netherlands
- Amsterdam Infection and Immunity Institute, Amsterdam, The Netherlands
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41
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Kuncman Ł, Orzechowska M, Milecki T, Kucharz J, Fijuth J. High FLT3 expression increases immune-cell infiltration in the tumor microenvironment and correlates with prolonged disease-free survival in patients with non-small cell lung cancer. Mol Oncol 2024. [PMID: 38327131 DOI: 10.1002/1878-0261.13597] [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: 08/17/2023] [Revised: 12/18/2023] [Accepted: 01/18/2024] [Indexed: 02/09/2024] Open
Abstract
Most of the currently used cancer immunotherapies inhibit the programmed cell death protein 1 (PD1)-programmed cell death 1 ligand 1 (PDL1) axis of T-cells. However, dendritic cells (DCs) controlled by natural killer (NK) cells via the FMS-related tyrosine kinase 3 (FLT3) axis are necessary for activation of T-cells. The aim of the study was to evaluate FLT3 as a prognostic factor and determine its role in immune infiltration (with emphasis on NK cells and DCs). Using The Cancer Genome Atlas (TCGA) database, we performed bioinformatic analysis of the gene expression datasets of 501 lung squamous cell carcinoma (LUSC) and 515 lung adenocarcinoma (LUAD) patient who had corresponding clinical data [analysis was performed in R (version 4.2.0)]. Disease-free survival (DFS) differed between the FLT3-low and FLT3-high expression groups, respectively, in LUSC (61.0 vs 71.3 months P = 0.075) and LUAD (32.7 vs 47.5 months P = 0.045). A tumor microenvironment (TME) with high immune infiltration and rich in T-cell exhaustion markers was observed in the FLT3-high group. We showed overexpression of NK cell and DC gene signatures in the FLT3-high expression group as well as overexpression of key effector genes of the cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes protein (STING) pathway, which is crucial in response to radiotherapy. High expression of FLT3 in the TME was associated with immune cell infiltration (especially of NK cells and DCs), increased expression of T-cell exhaustion markers and expression of effector genes of the cGAS-STING pathway, which may consequently increase susceptibility to immunotherapy and radiotherapy. High FLT3 expression correlated with prolonged DFS in the LUSC and LUAD cohorts.
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Affiliation(s)
- Łukasz Kuncman
- Department of Radiotherapy, Medical University of Lodz, Poland
- Department of External Beam Radiotherapy, Nicolaus Copernicus Multidisciplinary Centre for Oncology and Traumatology, Łódź, Poland
| | | | - Tomasz Milecki
- Department of Urology, Poznan University of Medical Sciences, Poland
| | - Jakub Kucharz
- Department of Genitourinary Oncology, The Maria Sklodowska-Curie National Research Institute of Oncology in Warsaw, Poland
| | - Jacek Fijuth
- Department of Radiotherapy, Medical University of Lodz, Poland
- Department of External Beam Radiotherapy, Nicolaus Copernicus Multidisciplinary Centre for Oncology and Traumatology, Łódź, Poland
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42
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Palomares F, Pina A, Dakhaoui H, Leiva-Castro C, Munera-Rodriguez AM, Cejudo-Guillen M, Granados B, Alba G, Santa-Maria C, Sobrino F, Lopez-Enriquez S. Dendritic Cells as a Therapeutic Strategy in Acute Myeloid Leukemia: Vaccines. Vaccines (Basel) 2024; 12:165. [PMID: 38400148 PMCID: PMC10891551 DOI: 10.3390/vaccines12020165] [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: 12/16/2023] [Revised: 01/11/2024] [Accepted: 02/04/2024] [Indexed: 02/25/2024] Open
Abstract
Dendritic cells (DCs) serve as professional antigen-presenting cells (APC) bridging innate and adaptive immunity, playing an essential role in triggering specific cellular and humoral responses against tumor and infectious antigens. Consequently, various DC-based antitumor therapeutic strategies have been developed, particularly vaccines, and have been intensively investigated specifically in the context of acute myeloid leukemia (AML). This hematological malignancy mainly affects the elderly population (those aged over 65), which usually presents a high rate of therapeutic failure and an unfavorable prognosis. In this review, we examine the current state of development and progress of vaccines in AML. The findings evidence the possible administration of DC-based vaccines as an adjuvant treatment in AML following initial therapy. Furthermore, the therapy demonstrates promising outcomes in preventing or delaying tumor relapse and exhibits synergistic effects when combined with other treatments during relapses or disease progression. On the other hand, the remarkable success observed with RNA vaccines for COVID-19, delivered in lipid nanoparticles, has revealed the efficacy and effectiveness of these types of vectors, prompting further exploration and their potential application in AML, as well as other neoplasms, loading them with tumor RNA.
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Affiliation(s)
- Francisca Palomares
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
- Institute of Biomedicine of Seville (IBiS) HUVR/CSIC/University of Seville, Avda. Manuel Siurot s/n, 41013 Seville, Spain;
| | - Alejandra Pina
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
| | - Hala Dakhaoui
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
| | - Camila Leiva-Castro
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
| | - Ana M. Munera-Rodriguez
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
| | - Marta Cejudo-Guillen
- Institute of Biomedicine of Seville (IBiS) HUVR/CSIC/University of Seville, Avda. Manuel Siurot s/n, 41013 Seville, Spain;
- Department of Pharmacology, Pediatry, and Radiology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain
| | - Beatriz Granados
- Distrito Sanitario de Atención Primaria Málaga, Sistema Sanitario Público de Andalucía, 29004 Malaga, Spain;
| | - Gonzalo Alba
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
| | - Consuelo Santa-Maria
- Department of Biochemistry and Molecular Biology, School of Pharmacy, University of Seville, 41012 Seville, Spain;
| | - Francisco Sobrino
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
| | - Soledad Lopez-Enriquez
- Department of Medical Biochemistry and Molecular Biology, and Immunology, School of Medicine, University of Seville, Av. Sanchez Pizjuan s/n, 41009 Seville, Spain; (A.P.); (H.D.); (C.L.-C.); (A.M.M.-R.); (G.A.); (F.S.)
- Institute of Biomedicine of Seville (IBiS) HUVR/CSIC/University of Seville, Avda. Manuel Siurot s/n, 41013 Seville, Spain;
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43
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Yang J, Zhu X, Feng J. The Changes in the Quantity of Lymphocyte Subpopulations during the Process of Sepsis. Int J Mol Sci 2024; 25:1902. [PMID: 38339179 PMCID: PMC10855580 DOI: 10.3390/ijms25031902] [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: 12/11/2023] [Revised: 01/18/2024] [Accepted: 01/27/2024] [Indexed: 02/12/2024] Open
Abstract
Sepsis remains a global challenge, especially in low- and middle-income countries, where there is an urgent need for easily accessible and cost-effective biomarkers to predict the occurrence and prognosis of sepsis. Lymphocyte counts are easy to measure clinically, and a large body of animal and clinical research has shown that lymphocyte counts are closely related to the incidence and prognosis of sepsis. This review extensively collected experimental articles related to lymphocyte counts since the unification of the definition of sepsis. The article categorizes and discusses the relationship between absolute lymphocyte counts, intrinsic lymphocyte subsets, effector T-lymphocytes, B-lymphocytes, dendritic cells, and the incidence and prognosis of sepsis. The results indicate that comparisons of absolute lymphocyte counts alone are meaningless. However, in addition to absolute lymphocyte counts, innate lymphocyte subsets, effector T-cells, B-lymphocytes, and dendritic cells have shown certain research value in related studies.
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Affiliation(s)
- Jiale Yang
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China;
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xiaojian Zhu
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China;
| | - Jun Feng
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China;
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430074, China
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Mousa M, Liang Y, Tung LT, Wang H, Krawczyk C, Langlais D, Nijnik A. Chromatin-binding deubiquitinase MYSM1 acts in haematopoietic progenitors to control dendritic cell development and to program dendritic cell responses to microbial stimulation. Immunology 2024. [PMID: 38316548 DOI: 10.1111/imm.13758] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
Dendritic cells (DCs) are the most significant antigen presenting cells of the immune system, critical for the activation of naïve T cells. The pathways controlling DC development, maturation, and effector function therefore require precise regulation to allow for an effective induction of adaptive immune response. MYSM1 is a chromatin binding deubiquitinase (DUB) and an activator of gene expression via its catalytic activity for monoubiquitinated histone H2A (H2A-K119ub), which is a highly abundant repressive epigenetic mark. MYSM1 is an important regulator of haematopoiesis in mouse and human, and a systemic constitutive loss of Mysm1 in mice results in a depletion of many haematopoietic progenitors, including DC precursors, with the downstream loss of most DC lineage cells. However, the roles of MYSM1 at the later checkpoints in DC development, maturation, activation, and effector function at present remain unknown. In the current work, using a range of novel mouse models (Mysm1fl CreERT2 , Mysm1fl CD11c-cre, Mysm1DN ), we further the understanding of MYSM1 functions in the DC lineage: assessing the requirement for MYSM1 in DC development independently of other complex developmental phenotypes, exploring its role at the later checkpoints in DC maintenance and activation in response to microbial stimulation, and testing the requirement for the DUB catalytic activity of MYSM1 in these processes. Surprisingly, we demonstrate that MYSM1 expression and catalytic activity in DCs are dispensable for the maintenance of DC numbers in vivo or for DC activation in response to microbial stimulation. In contrast, MYSM1 acts via its DUB catalytic activity specifically in haematopoietic progenitors to allow normal DC lineage development, and its loss results not only in a severe DC depletion but also in the production of functionally altered DCs, with a dysregulation of many housekeeping transcriptional programs and significantly altered responses to microbial stimulation.
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Affiliation(s)
- Marwah Mousa
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - Yue Liang
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - Lin Tze Tung
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - HanChen Wang
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
| | - Connie Krawczyk
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, Michigan, United States
| | - David Langlais
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, McGill University Genome Centre, McGill University, Montreal, Quebec, Canada
- Department of Microbiology and Immunology, McGill University, Montreal, Quebec, Canada
| | - Anastasia Nijnik
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec, Canada
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Asiedu K, Tummanapalli SS, Alotaibi S, Wang LL, Dhanapalaratnam R, Kwai N, Poynten A, Markoulli M, Krishnan AV. Impact of SGLT2 Inhibitors on Corneal Nerve Morphology and Dendritic Cell Density in Type 2 Diabetes. Ocul Immunol Inflamm 2024; 32:234-241. [PMID: 37801679 DOI: 10.1080/09273948.2023.2263789] [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: 08/29/2022] [Accepted: 09/22/2023] [Indexed: 10/08/2023]
Abstract
PURPOSE This study aims to determine the effects of SGLT2 inhibitors on corneal dendritic cell density and corneal nerve measures in type 2 diabetes. METHODS Corneal dendritic cell densities and nerve parameters were measured in people with type 2 diabetes treated with SGLT2 inhibitors (T2DM-SGLT2i) [n = 23] and those not treated with SGLT2 inhibitors (T2DM-no SGLT2i) [n = 23], along with 24 age and sex-matched healthy controls. RESULTS There was a reduction in all corneal nerve parameters in type 2 diabetes groups compared to healthy controls (All parameters: p < 0.05). No significant differences in corneal nerve parameters were observed between T2DM-SGLT2i and T2DM-no SGLT2i groups (All parameters: p > 0.05). Central corneal dendritic cells were significantly reduced [mature (p = 0.03), immature (p = 0.06) and total (p = 0.002)] in the T2DM-SGLT2i group compared to the T2DM-no SGLT2i group. Significantly, higher mature (p = 0.04), immature (p = 0.004), total (p = 0.002) dendritic cell densities in the T2DM-no SGLT2i group were observed compared to the healthy controls. In the inferior whorl, no significant difference in immature (p = 0.27) and total dendritic cell densities (p = 0.16) between T2DM-SGLT2i and T2DM-no SGLT2i were observed except mature dendritic cell density (p = 0.018). No differences in total dendritic cell density were observed in the central (p > 0.09) and inferior whorl (p = 0.88) between T2DM-SGLT2i and healthy controls. CONCLUSION The present study showed a reduced dendritic cell density in people with type 2 diabetes taking SGLT2 inhibitors compared to those not taking these medications.
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Affiliation(s)
- Kofi Asiedu
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia
| | | | - Sultan Alotaibi
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia
- Department of Optometry and Vision Science, College of Applied Medical Science, King Saud University, Riyadh, Saudi Arabia
| | - Leiao Leon Wang
- School of Clinical Medicine, University of New South Wales, Sydney, Australia
| | | | - Natalie Kwai
- School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, Australia
| | - Ann Poynten
- Department of Endocrinology, Prince of Wales Hospital, Sydney, Australia
| | - Maria Markoulli
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia
| | - Arun V Krishnan
- School of Clinical Medicine, University of New South Wales, Sydney, Australia
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Bakhshi P, Nourizadeh M, Sharifi L, Nowroozi MR, Mohsenzadegan M, Farajollahi MM. Impaired monocyte-derived dendritic cell phenotype in prostate cancer patients: A phenotypic comparison with healthy donors. Cancer Rep (Hoboken) 2024; 7:e1996. [PMID: 38351552 PMCID: PMC10864738 DOI: 10.1002/cnr2.1996] [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: 09/03/2023] [Revised: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 02/16/2024] Open
Abstract
BACKGROUND Dendritic cells (DCs) play a crucial role in immunity. Research on monocyte-derived DCs (Mo-DCs) cancer vaccines is in progress despite limited success in clinical trials. This study focuses on Mo-DCs generated from prostate cancer (PCA) patients, comparing them with DCs from healthy donors (HD-DCs). METHODS Mo-DCs were isolated from PCA patient samples, and their phenotype was compared to HD-DCs. Key parameters included monocyte count, CD14 expression, and the levels of maturation markers (HLA-DR, CD80, CD86) were assessed. RESULTS PCA samples exhibited a significantly lower monocyte count and reduced CD14 expression compared to healthy samples (p ⟨ 0.0001). Additionally, PCA-DCs expressed significantly lower levels of maturation markers, including HLA-DR, CD80, and CD86, when compared to HD-DCs (p = 0.123, p = 0.884, and p = 0.309, respectively). CONCLUSION The limited success of DC vaccines could be attributed to impaired phenotypic characteristics. These observations suggest that suboptimal characteristics of Mo-DCs generated from cancer patient blood samples might contribute to the limited success of DC vaccines. Consequently, this study underscores the need for alternative strategies to enhance the features of Mo-DCs for more effective cancer immunotherapies.
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Affiliation(s)
- Parisa Bakhshi
- Department of Medical Biotechnology, School of Allied Medical SciencesIran University of Medical SciencesTehranIran
| | - Maryam Nourizadeh
- Immunology, Asthma and Allergy Research InstituteTehran University of Medical SciencesTehranIran
| | - Laleh Sharifi
- Uro‐Oncology Research CenterTehran University of Medical SciencesTehranIran
| | | | - Monireh Mohsenzadegan
- Department of Medical Laboratory Sciences, School of Allied Medical SciencesIran University of Medical SciencesTehranIran
| | - Mohammad M. Farajollahi
- Department of Medical Biotechnology, School of Allied Medical SciencesIran University of Medical SciencesTehranIran
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Huete-Carrasco J, Lynch RI, Ward RW, Lavelle EC. Rational design of polymer-based particulate vaccine adjuvants. Eur J Immunol 2024; 54:e2350512. [PMID: 37994660 DOI: 10.1002/eji.202350512] [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: 07/28/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 11/24/2023]
Abstract
Vaccination is considered one of the major milestones in modern medicine, facilitating the control and eradication of life-threatening infectious diseases. Vaccine adjuvants are a key component of many vaccines, serving to steer antigen-specific immune responses and increase their magnitude. Despite major advances in the field of adjuvant research over recent decades, our understanding of their mechanism of action remains incomplete. This hinders our capacity to further improve these adjuvant technologies, so addressing how adjuvants induce and control the induction of innate and adaptive immunity is a priority. Investigating how adjuvant physicochemical properties, such as size and charge, exert immunomodulatory effects can provide valuable insights and serve as the foundation for the rational design of vaccine adjuvants. Most clinically applied adjuvants are particulate in nature and polymeric particulate adjuvants present advantages due to stability, biocompatibility profiles, and flexibility in terms of formulation. These properties can impact on antigen release kinetics and biodistribution, cellular uptake and targeting, and drainage to the lymphatics, consequently dictating the induction of innate, cellular, and humoral adaptive immunity. A current focus is to apply rational design principles to the development of adjuvants capable of eliciting robust cellular immune responses including CD8+ cytotoxic T-cell and Th1-biased CD4+ T-cell responses, which are required for vaccines against intracellular pathogens and cancer. This review highlights recent advances in our understanding of how particulate adjuvants, especially polymer-based particulates, modulate immune responses and how this can be used as a guide for improved adjuvant design.
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Affiliation(s)
- Jorge Huete-Carrasco
- Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Roisin I Lynch
- Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) & Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin, Ireland
| | - Ross W Ward
- Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Ed C Lavelle
- Adjuvant Research Group, School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
- Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) & Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin, Dublin, Ireland
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Nakano K, Whitehead GS, Lyons-Cohen MR, Grimm SA, Wilkinson CL, Izumi G, Livraghi-Butrico A, Cook DN, Nakano H. Chemokine CCL19 promotes type 2 T-cell differentiation and allergic airway inflammation. J Allergy Clin Immunol 2024; 153:487-502.e9. [PMID: 37956733 PMCID: PMC10922373 DOI: 10.1016/j.jaci.2023.10.024] [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: 01/31/2023] [Revised: 10/06/2023] [Accepted: 10/12/2023] [Indexed: 11/15/2023]
Abstract
BACKGROUND Allergic asthma is driven largely by allergen-specific TH2 cells, which develop in regional lymph nodes on the interaction of naive CD4+ T cells with allergen-bearing dendritic cells that migrate from the lung. This migration event is dependent on CCR7 and its chemokine ligand, CCL21. However, is has been unclear whether the other CCR7 ligand, CCL19, has a role in allergic airway disease. OBJECTIVE This study sought to define the role of CCL19 in TH2 differentiation and allergic airway disease. METHODS Ccl19-deficient mice were studied in an animal model of allergic asthma. Dendritic cells or fibroblastic reticular cells from wild-type and Ccl19-deficient mice were cultured with naive CD4+ T cells, and cytokine production was measured by ELISA. Recombinant CCL19 was added to CD4+ T-cell cultures, and gene expression was assessed by RNA-sequencing and quantitative PCR. Transcription factor activation was assessed by flow cytometry. RESULTS Lungs of Ccl19-deficient mice had less allergic airway inflammation, reduced airway hyperresponsiveness, and less IL-4 and IL-13 production compared with lungs of Ccl19-sufficient animals. Naive CD4+ T cells cocultured with Ccl19-deficient dendritic cells or fibroblastic reticular cells produced lower amounts of type 2 cytokines than did T cells cocultured with their wild-type counterparts. Recombinant CCL19 increased phosphorylation of STAT5 and induced expression of genes associated with TH2 cell and IL-2 signaling pathways. CONCLUSIONS These results reveal a novel, TH2 cell-inducing function of CCL19 in allergic airway disease and suggest that strategies to block this pathway might help to reduce the incidence or severity of allergic asthma.
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Affiliation(s)
- Keiko Nakano
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Gregory S Whitehead
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Miranda R Lyons-Cohen
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Sara A Grimm
- Integrative Bioinformatics Support Group, Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Christina L Wilkinson
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | - Gentaro Izumi
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC
| | | | - Donald N Cook
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC.
| | - Hideki Nakano
- Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC.
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Xue M, Lin H, Liang HPH, Bereza-Malcolm L, Lynch T, Sinnathurai P, Weiler H, Jackson C, March L. EPCR deficiency ameliorates inflammatory arthritis in mice by suppressing the activation and migration of T cells and dendritic cells. Rheumatology (Oxford) 2024; 63:571-580. [PMID: 37228024 PMCID: PMC10834933 DOI: 10.1093/rheumatology/kead230] [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: 02/20/2023] [Revised: 04/08/2023] [Accepted: 05/10/2023] [Indexed: 05/27/2023] Open
Abstract
OBJECTIVES Endothelial protein C receptor (EPCR) is highly expressed in synovial tissues of patients with RA, but the function of this receptor remains unknown in RA. This study investigated the effect of EPCR on the onset and development of inflammatory arthritis and its underlying mechanisms. METHODS CIA was induced in EPCR gene knockout (KO) and matched wild-type (WT) mice. The onset and development of arthritis was monitored clinically and histologically. T cells, dendritic cells (DCs), EPCR and cytokines from EPCR KO and WT mice, RA patients and healthy controls (HCs) were detected by flow cytometry and ELISA. RESULTS EPCR KO mice displayed >40% lower arthritis incidence and 50% less disease severity than WT mice. EPCR KO mice also had significantly fewer Th1/Th17 cells in synovial tissues with more DCs in circulation. Lymph nodes and synovial CD4 T cells from EPCR KO mice expressed fewer chemokine receptors CXCR3, CXCR5 and CCR6 than WT mice. In vitro, EPCR KO spleen cells contained fewer Th1 and more Th2 and Th17 cells than WT and, in concordance, blocking EPCR in WT cells stimulated Th2 and Th17 cells. DCs generated from EPCR KO bone marrow were less mature and produced less MMP-9. Circulating T cells from RA patients expressed higher levels of EPCR than HC cells; blocking EPCR stimulated Th2 and Treg cells in vitro. CONCLUSION Deficiency of EPCR ameliorates arthritis in CIA via inhibition of the activation and migration of pathogenic Th cells and DCs. Targeting EPCR may constitute a novel strategy for future RA treatment.
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Affiliation(s)
- Meilang Xue
- Sutton Arthritis Research Laboratory, Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney and the Northern Sydney Local Health District, Sydney, NSW, Australia
- Australian Arthritis and Autoimmune Biobank Collaborative (A3BC), Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney and the Northern Sydney Local Health District, Sydney, NSW, Australia
| | - Haiyan Lin
- Sutton Arthritis Research Laboratory, Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney and the Northern Sydney Local Health District, Sydney, NSW, Australia
- Australian Arthritis and Autoimmune Biobank Collaborative (A3BC), Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney and the Northern Sydney Local Health District, Sydney, NSW, Australia
| | - Hai Po Helena Liang
- Sutton Arthritis Research Laboratory, Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney and the Northern Sydney Local Health District, Sydney, NSW, Australia
| | - Lara Bereza-Malcolm
- Sutton Arthritis Research Laboratory, Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney and the Northern Sydney Local Health District, Sydney, NSW, Australia
- Australian Arthritis and Autoimmune Biobank Collaborative (A3BC), Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney and the Northern Sydney Local Health District, Sydney, NSW, Australia
| | - Tom Lynch
- Australian Arthritis and Autoimmune Biobank Collaborative (A3BC), Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney and the Northern Sydney Local Health District, Sydney, NSW, Australia
| | - Premarani Sinnathurai
- Australian Arthritis and Autoimmune Biobank Collaborative (A3BC), Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney and the Northern Sydney Local Health District, Sydney, NSW, Australia
| | - Hartmut Weiler
- Versiti Blood Research Institute, Versiti, Milwaukee, WI, USA
- Department of Physiology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Christopher Jackson
- Sutton Arthritis Research Laboratory, Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney and the Northern Sydney Local Health District, Sydney, NSW, Australia
| | - Lyn March
- Australian Arthritis and Autoimmune Biobank Collaborative (A3BC), Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney and the Northern Sydney Local Health District, Sydney, NSW, Australia
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Wang H, Medina R, Ye J, Zhang Y, Chakraborty S, Valenzuela A, Uher O, Hadrava Vanova K, Sun M, Sang X, Park DM, Zenka J, Gilbert MR, Pacak K, Zhuang Z. rWTC-MBTA Vaccine Induces Potent Adaptive Immune Responses Against Glioblastomas via Dynamic Activation of Dendritic Cells. Adv Sci (Weinh) 2024:e2308280. [PMID: 38298111 DOI: 10.1002/advs.202308280] [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] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/19/2023] [Indexed: 02/02/2024]
Abstract
Despite strides in immunotherapy, glioblastoma multiforme (GBM) remains challenging due to low inherent immunogenicity and suppressive tumor microenvironment. Converting "cold" GBMs to "hot" is crucial for immune activation and improved outcomes. This study comprehensively characterized a therapeutic vaccination strategy for preclinical GBM models. The vaccine consists of Mannan-BAM-anchored irradiated whole tumor cells, Toll-like receptor ligands [lipoteichoic acid (LTA), polyinosinic-polycytidylic acid (Poly (I:C)), and resiquimod (R-848)], and anti-CD40 agonistic antibody (rWTC-MBTA). Intracranial GBM models (GL261, SB28 cells) are used to evaluate the vaccine efficacy. A substantial number of vaccinated mice exhibited complete regression of GBM tumors in a T-cell-dependent manner, with no significant toxicity. Long-term tumor-specific immune memory is confirmed upon tumor rechallenge. In the vaccine-draining lymph nodes of the SB28 model, rWTC-MBTA vaccination triggered a major rise in conventional dendritic cell type 1 (cDC1) 12 h post-treatment, followed by an increase in conventional dendritic cell type 2 (cDC2), monocyte-derived dendritic cell (moDC), and plasmacytoid dendritic cell (pDC) on Day 5 and Day 13. Enhanced cytotoxicity of CD4+ and CD8+ T cells in vaccinated mice is verified in co-culture with tumor cells. Analyses of immunosuppressive signals (T-cell exhaustion, myeloid-derived suppressor cells (MDSC), M2 macrophages) in the GBM microenvironment suggest potential combinations with other immunotherapies for enhanced efficacy. In conclusion, the authors findings demonstrate that rWTC-MBTA induces potent and long-term adaptive immune responses against GBM.
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Affiliation(s)
- Herui Wang
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 10022, USA
| | - Rogelio Medina
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 10022, USA
| | - Juan Ye
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 10022, USA
| | - Yaping Zhang
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 10022, USA
| | | | - Alex Valenzuela
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 10022, USA
| | - Ondrej Uher
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD, 20892, USA
| | - Katerina Hadrava Vanova
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD, 20892, USA
| | - Mitchell Sun
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 10022, USA
| | - Xueyu Sang
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 10022, USA
| | - Deric M Park
- John Theurer Cancer Center, HUMC, Hackensack Meridian School of Medicine, 92 2nd St, Hackensack, NJ, 07601, USA
| | - Jan Zenka
- Department of Medical Biology, Faculty of Science, University of South Bohemia, České Budějovice, 37005, Czech Republic
| | - Mark R Gilbert
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 10022, USA
| | - Karel Pacak
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD, 20892, USA
| | - Zhengping Zhuang
- Neuro-Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, 10022, USA
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