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Yoon JH, Bae E, Nagafuchi Y, Sudo K, Han JS, Park SH, Nakae S, Yamashita T, Ju JH, Matsumoto I, Sumida T, Miyazawa K, Kato M, Kuroda M, Lee IK, Fujio K, Mamura M. Repression of SMAD3 by STAT3 and c-Ski induces conventional dendritic cell differentiation. Life Sci Alliance 2024; 7:e201900581. [PMID: 38960622 PMCID: PMC11222659 DOI: 10.26508/lsa.201900581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 07/05/2024] Open
Abstract
A pleiotropic immunoregulatory cytokine, TGF-β, signals via the receptor-regulated SMADs: SMAD2 and SMAD3, which are constitutively expressed in normal cells. Here, we show that selective repression of SMAD3 induces cDC differentiation from the CD115+ common DC progenitor (CDP). SMAD3 was expressed in haematopoietic cells including the macrophage DC progenitor. However, SMAD3 was specifically down-regulated in CD115+ CDPs, SiglecH- pre-DCs, and cDCs, whereas SMAD2 remained constitutive. SMAD3-deficient mice showed a significant increase in cDCs, SiglecH- pre-DCs, and CD115+ CDPs compared with the littermate control. SMAD3 repressed the mRNA expression of FLT3 and the cDC-related genes: IRF4 and ID2. We found that one of the SMAD transcriptional corepressors, c-SKI, cooperated with phosphorylated STAT3 at Y705 and S727 to repress the transcription of SMAD3 to induce cDC differentiation. These data indicate that STAT3 and c-Ski induce cDC differentiation by repressing SMAD3: the repressor of the cDC-related genes during the developmental stage between the macrophage DC progenitor and CD115+ CDP.
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Affiliation(s)
- Jeong-Hwan Yoon
- https://ror.org/04qn0xg47 Biomedical Research Institute, Kyungpook National University Hospital, Daegu, Republic of Korea
- https://ror.org/00k5j5c86 Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
- Shin-Young Medical Institute, Chiba, Japan
- https://ror.org/025h1m602 Institute for the 3Rs, Department of Laboratory Animal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Eunjin Bae
- https://ror.org/00k5j5c86 Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
- https://ror.org/03mc8zn46 Department of Companion Health, Yeonsung University, Anyang, Republic of Korea
- Department of Experimental Pathology, Graduate School of Comprehensive Human Sciences and Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yasuo Nagafuchi
- https://ror.org/057zh3y96 Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Katsuko Sudo
- https://ror.org/00k5j5c86 Animal Research Center, Tokyo Medical University, Tokyo, Japan
| | - Jin Soo Han
- https://ror.org/025h1m602 Institute for the 3Rs, Department of Laboratory Animal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Seok Hee Park
- Department of Biological Sciences, Sungkyunkwan University, Suwon, Republic of Korea
| | - Susumu Nakae
- https://ror.org/03t78wx29 Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan
| | - Tadashi Yamashita
- Laboratory of Veterinary Biochemistry, Azabu University School of Veterinary Medicine, Sagamihara, Japan
| | - Ji Hyeon Ju
- Department of Rheumatology, Catholic University of Korea, Seoul St. Mary Hospital, Seoul, Republic of Korea
| | - Isao Matsumoto
- Department of Internal Medicine, University of Tsukuba, Tsukuba, Japan
| | - Takayuki Sumida
- Department of Internal Medicine, University of Tsukuba, Tsukuba, Japan
| | - Keiji Miyazawa
- https://ror.org/059x21724 Departments of Biochemistry, University of Yamanashi, Yamanashi, Japan
| | - Mitsuyasu Kato
- Department of Experimental Pathology, Graduate School of Comprehensive Human Sciences and Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masahiko Kuroda
- https://ror.org/00k5j5c86 Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - In-Kyu Lee
- https://ror.org/04qn0xg47 Biomedical Research Institute, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Keishi Fujio
- https://ror.org/057zh3y96 Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Mizuko Mamura
- https://ror.org/04qn0xg47 Biomedical Research Institute, Kyungpook National University Hospital, Daegu, Republic of Korea
- Shin-Young Medical Institute, Chiba, Japan
- https://ror.org/00k5j5c86 Department of Advanced Nucleic Acid Medicine, Tokyo Medical University, Tokyo, Japan
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2
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Huang D, Jiao X, Huang S, Liu J, Si H, Qi D, Pei X, Lu D, Wang Y, Li Z. Analysis of the heterogeneity and complexity of murine extraorbital lacrimal gland via single-cell RNA sequencing. Ocul Surf 2024; 34:60-95. [PMID: 38945476 DOI: 10.1016/j.jtos.2024.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 06/22/2024] [Accepted: 06/26/2024] [Indexed: 07/02/2024]
Abstract
PURPOSE The lacrimal gland is essential for maintaining ocular surface health and avoiding external damage by secreting an aqueous layer of the tear film. However, a healthy lacrimal gland's inventory of cell types and heterogeneity remains understudied. METHODS Here, 10X Genome-based single-cell RNA sequencing was used to generate an unbiased classification of cellular diversity in the extraorbital lacrimal gland (ELG) of C57BL/6J mice. From 43,850 high-quality cells, we produced an atlas of cell heterogeneity and defined cell types using classic marker genes. The possible functions of these cells were analyzed through bioinformatics analysis. Additionally, the CellChat was employed for a preliminary analysis of the cell-cell communication network in the ELG. RESULTS Over 37 subclasses of cells were identified, including seven types of glandular epithelial cells, three types of fibroblasts, ten types of myeloid-derived immune cells, at least eleven types of lymphoid-derived immune cells, and five types of vascular-associated cell subsets. The cell-cell communication network analysis revealed that fibroblasts and immune cells play a pivotal role in the dense intercellular communication network within the mouse ELG. CONCLUSIONS This study provides a comprehensive transcriptome atlas and related database of the mouse ELG.
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Affiliation(s)
- Duliurui Huang
- Department of Ophthalmology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Xinwei Jiao
- Henan Eye Institute, Henan Eye Hospital and Henan Key Laboratory of Ophthalmology and Visual Science, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, 450000, China
| | - Shenzhen Huang
- Henan Eye Institute, Henan Eye Hospital and Henan Key Laboratory of Ophthalmology and Visual Science, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, 450000, China
| | - Jiangman Liu
- Department of Ophthalmology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Hongli Si
- Department of Ophthalmology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Di Qi
- Henan Eye Institute, Henan Eye Hospital and Henan Key Laboratory of Ophthalmology and Visual Science, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, 450000, China
| | - Xiaoting Pei
- Henan Eye Institute, Henan Eye Hospital and Henan Key Laboratory of Ophthalmology and Visual Science, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, 450000, China
| | - Dingli Lu
- Henan Eye Institute, Henan Eye Hospital and Henan Key Laboratory of Ophthalmology and Visual Science, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, 450000, China
| | - Yimian Wang
- Division of Medicine, Faculty of Medical Sciences, University College London, Gower Street, London, WC1E 6BT, UK
| | - Zhijie Li
- Department of Ophthalmology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China; Henan Eye Institute, Henan Eye Hospital and Henan Key Laboratory of Ophthalmology and Visual Science, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, 450000, China.
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3
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Mazzoccoli L, Liu B. Dendritic Cells in Shaping Anti-Tumor T Cell Response. Cancers (Basel) 2024; 16:2211. [PMID: 38927916 PMCID: PMC11201542 DOI: 10.3390/cancers16122211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
Among professional antigen-presenting cells, dendritic cells (DCs) orchestrate innate and adaptive immunity and play a pivotal role in anti-tumor immunity. DCs are a heterogeneous population with varying functions in the tumor microenvironment (TME). Tumor-associated DCs differentiate developmentally and functionally into three main subsets: conventional DCs (cDCs), plasmacytoid DCs (pDCs), and monocyte-derived DCs (MoDCs). There are two major subsets of cDCs in TME, cDC1 and cDC2. cDC1 is critical for cross-presenting tumor antigens to activate cytotoxic CD8+ T cells and is also required for priming earlier CD4+ T cells in certain solid tumors. cDC2 is vital for priming anti-tumor CD4+ T cells in multiple tumor models. pDC is a unique subset of DCs and produces type I IFN through TLR7 and TLR9. Studies have shown that pDCs are related to immunosuppression in the TME through the secretion of immunosuppressive cytokines and by promoting regulatory T cells. MoDCs differentiate separately from monocytes in response to inflammatory cues and infection. Also, MoDCs can cross-prime CD8+ T cells. In this review, we summarize the subsets and functions of DCs. We also discuss the role of different DC subsets in shaping T cell immunity in TME and targeting DCs for potential immunotherapeutic benefits against cancer.
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Affiliation(s)
- Luciano Mazzoccoli
- Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA;
- The Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
| | - Bei Liu
- Division of Hematology, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA;
- The Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA
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4
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Hansen FJ, David P, Weber GF. The Multifaceted Functionality of Plasmacytoid Dendritic Cells in Gastrointestinal Cancers: A Potential Therapeutic Target? Cancers (Basel) 2024; 16:2216. [PMID: 38927922 PMCID: PMC11201847 DOI: 10.3390/cancers16122216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/06/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024] Open
Abstract
Gastrointestinal (GI) tumors pose a significant global health burden, necessitating the exploration of novel therapeutic approaches. Plasmacytoid dendritic cells (pDCs) play a crucial role in tumor immunity, exhibiting both anti-tumor and pro-tumor effects. This review aims to summarize the role of pDCs in different types of GI tumors and assess their potential as therapeutic targets. In gastric cancer, hepatocellular carcinoma, and intrahepatic cholangiocarcinoma, increased infiltration of pDCs was associated with a worse outcome, whereas in esophageal cancer, pancreatic cancer, and colorectal cancer, pDC infiltration improved the outcome. Initial animal studies of gastric cancer and hepatocellular carcinoma showed that pDCs could be a successful therapeutic target. In conclusion, pDCs play a multifaceted role in GI tumors, influencing both anti-tumor immunity and tumor progression. Further research is needed to optimize their clinical application and explore combinatorial approaches.
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Affiliation(s)
| | - Paul David
- Department of General and Visceral Surgery, Medical Faculty of Friedrich-Alexander-University Erlangen, University Hospital Erlangen, 91054 Erlangen, Germany;
| | - Georg F. Weber
- Department of General and Visceral Surgery, Medical Faculty of Friedrich-Alexander-University Erlangen, University Hospital Erlangen, 91054 Erlangen, Germany;
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5
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Nagel S, Rand U, Pommerenke C, Meyer C. Transcriptional Landscape of CUT-Class Homeobox Genes in Blastic Plasmacytoid Dendritic Cell Neoplasm. Int J Mol Sci 2024; 25:2764. [PMID: 38474011 DOI: 10.3390/ijms25052764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024] Open
Abstract
Homeobox genes encode developmental transcription factors regulating tissue-specific differentiation processes and drive cancerogenesis when deregulated. Dendritic cells (DCs) are myeloid immune cells occurring as two types, either conventional or plasmacytoid DCs. Recently, we showed that the expression of NKL-subclass homeobox gene VENTX is restricted to conventional DCs, regulating developmental genes. Here, we identified and investigated homeobox genes specifically expressed in plasmacytoid DCs (pDCs) and derived blastic plasmacytoid dendritic cell neoplasm (BPDCN). We analyzed gene expression data, performed RQ-PCR, protein analyses by Western blot and immuno-cytology, siRNA-mediated knockdown assays and subsequent RNA-sequencing and live-cell imaging. Screening of public gene expression data revealed restricted activity of the CUT-class homeobox gene CUX2 in pDCs. An extended analysis of this homeobox gene class in myelopoiesis showed that additional CUX2 activity was restricted to myeloid progenitors, while BPDCN patients aberrantly expressed ONECUT2, which remained silent in the complete myeloid compartment. ONECUT2 expressing BPDCN cell line CAL-1 served as a model to investigate its regulation and oncogenic activity. The ONECUT2 locus at 18q21 was duplicated and activated by IRF4, AUTS2 and TNF-signaling and repressed by BMP4-, TGFb- and IL13-signalling. Functional analyses of ONECUT2 revealed the inhibition of pDC differentiation and of CDKN1C and CASP1 expression, while SMAD3 and EPAS1 were activated. EPAS1 in turn enhanced survival under hypoxic conditions which thus may support dendritic tumor cells residing in hypoxic skin lesions. Collectively, we revealed physiological and aberrant activities of CUT-class homeobox genes in myelopoiesis including pDCs and in BPDCN, respectively. Our data may aid in the diagnosis of BPDCN patients and reveal novel therapeutic targets for this fatal malignancy.
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Affiliation(s)
- Stefan Nagel
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ, 38124 Braunschweig, Germany
| | - Ulfert Rand
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ, 38124 Braunschweig, Germany
| | - Claudia Pommerenke
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ, 38124 Braunschweig, Germany
| | - Corinna Meyer
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ, 38124 Braunschweig, Germany
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6
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Alvarez-Arzola R, Oliver L, Messmer MM, Twum DYF, Lee KP, Muhitch JB, Mesa C, Abrams SI. A Bacterial and Ganglioside-based Nanoparticle Initiates Reprogramming of Macrophages and Promotes Antitumor Phenotypes. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:475-486. [PMID: 38117752 DOI: 10.4049/jimmunol.2300256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 11/19/2023] [Indexed: 12/22/2023]
Abstract
Macrophages represent the most abundant immune component of the tumor microenvironment and often exhibit protumorigenic (M2-like) phenotypes that contribute to disease progression. Despite their generally accepted protumorigenic role, macrophages can also display tumoricidal (or M1-like) behavior, revealing that macrophages can be functionally reprogrammed, depending on the cues received within the tumor microenvironment. Moreover, such plasticity may be achieved by pharmacologic or biologic interventions. To that end, we previously demonstrated that a novel immunomodulator termed the "very small size particle" (VSSP) facilitates maturation of dendritic cells and differentiation of myeloid-derived suppressor cells to APCs with reduced suppressive activity in cancer models. VSSP was further shown to act in the bone marrow to drive the differentiation of progenitors toward monocytes, macrophages, and dendritic cells during emergency myelopoiesis. However, the underlying mechanisms for VSSP-driven alterations in myeloid differentiation and function remained unclear. In this study, in mouse models, we focused on macrophages and tested the hypothesis that VSSP drives macrophages toward M1-like functional states via IRF8- and PU.1-dependent mechanisms. We further hypothesized that such VSSP-mediated actions would be accompanied by enhanced antitumor responses. Overall, we showed that (1) VSSP drives naive or M2-derived macrophages to M1-like states, (2) the M1-like state induced by VSSP occurs via IRF8- and PU.1-dependent mechanisms, and (3) single-agent VSSP induces an antitumor response that is accompanied by alterations in the intratumoral myeloid compartment. These results provide a deeper mechanistic underpinning of VSSP and strengthen its use to drive M1-like responses in host defense, including cancer.
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Affiliation(s)
- Rydell Alvarez-Arzola
- Department of Immunoregulation, Immunology and Immunotherapy Direction, Center of Molecular Immunology, Havana, Cuba
| | - Liliana Oliver
- Department of Immunoregulation, Immunology and Immunotherapy Direction, Center of Molecular Immunology, Havana, Cuba
| | | | - Danielle Y F Twum
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Kelvin P Lee
- IU Simon Comprehensive Cancer Center, Division of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, IN
| | - Jason B Muhitch
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
| | - Circe Mesa
- Innovative Immunotherapy Alliance S.A., Mariel, Artemisa, Cuba
| | - Scott I Abrams
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY
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7
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Lam B, Kung YJ, Lin J, Tseng SH, Tu HF, Huang C, Lee B, Velarde E, Tsai YC, Villasmil R, Park ST, Xing D, Hung CF, Wu TC. In situ vaccination via tissue-targeted cDC1 expansion enhances the immunogenicity of chemoradiation and immunotherapy. J Clin Invest 2024; 134:e171621. [PMID: 37917174 PMCID: PMC10760964 DOI: 10.1172/jci171621] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 10/31/2023] [Indexed: 11/04/2023] Open
Abstract
Even with the prolific clinical use of next-generation cancer therapeutics, many tumors remain unresponsive or become refractory to therapy, creating a medical need. In cancer, DCs are indispensable for T cell activation, so there is a restriction on cytotoxic T cell immunity if DCs are not present in sufficient numbers in the tumor and draining lymph nodes to take up and present relevant cancer antigens. To address this bottleneck, we developed a therapeutic based on albumin fused with FMS-related tyrosine kinase 3 ligand (Alb-Flt3L) that demonstrated superior pharmacokinetic properties compared with Flt3L, including significantly longer half-life, accumulation in tumors and lymph nodes, and cross-presenting-DC expansion following a single injection. We demonstrated that Alb-Flt3L, in combination with standard-of-care chemotherapy and radiation therapy, serves as an in situ vaccination strategy capable of engendering polyclonal tumor neoantigen-specific immunity spontaneously. In addition, Alb-Flt3L-mediated tumor control synergized with immune checkpoint blockade delivered as anti-PD-L1. The mechanism of action of Alb-Flt3L treatment revealed a dependency on Batf3, type I IFNs, and plasmacytoid DCs. Finally, the ability of Alb-Flt3L to expand human DCs was explored in humanized mice. We observed significant expansion of human cross-presenting-DC subsets, supporting the notion that Alb-Flt3L could be used clinically to modulate human DC populations in future cancer therapeutic regimens.
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Affiliation(s)
- Brandon Lam
- Department of Pathology and
- Graduate Program in Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Stanford Medicine, Stanford University School of Medicine, Stanford, California, USA
| | | | | | | | | | | | | | - Esteban Velarde
- Department of Radiation Oncology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Rafael Villasmil
- Laboratory of Immunology, National Eye Institute, NIH, Bethesda, Maryland, USA
| | - Sung Taek Park
- Department of Pathology and
- Department of Obstetrics and Gynecology, Hallym University Kangnam Sacred Heart Hospital, Seoul, South Korea
| | | | | | - T.-C. Wu
- Department of Pathology and
- Department of Oncology
- Department of Obstetrics and Gynecology
- Molecular Microbiology and Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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8
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Engin AB, Engin A. Tryptophan Metabolism in Obesity: The Indoleamine 2,3-Dioxygenase-1 Activity and Therapeutic Options. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1460:629-655. [PMID: 39287867 DOI: 10.1007/978-3-031-63657-8_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/19/2024]
Abstract
Obesity activates both innate and adaptive immune responses in adipose tissue. Adipose tissue macrophages are functional antigen-presenting cells that promote the proliferation of interferon-gamma (IFN-γ)-producing cluster of differentiation (CD)4+ T cells in adipose tissue of obese subjects. The increased formation of neopterin and degradation of tryptophan may result in decreased T-cell responsiveness and lead to immunodeficiency. The activity of inducible indoleamine 2,3-dioxygenase-1 (IDO1) plays a major role in pro-inflammatory, IFN-γ-dominated settings. The expression of several kynurenine pathway enzyme genes is significantly increased in obesity. IDO1 in obesity shifts tryptophan metabolism from serotonin and melatonin synthesis to the formation of kynurenines and increases the ratio of kynurenine to tryptophan as well as with neopterin production. Reduction in serotonin (5-hydroxytryptamine; 5-HT) production provokes satiety dysregulation that leads to increased caloric uptake and obesity. According to the monoamine-deficiency hypothesis, a deficiency of cerebral serotonin is involved in neuropsychiatric symptomatology of depression, mania, and psychosis. Indeed, bipolar disorder (BD) and related cognitive deficits are accompanied by a higher prevalence of overweight and obesity. Furthermore, the accumulation of amyloid-β in Alzheimer's disease brains has several toxic effects as well as IDO induction. Hence, abdominal obesity is associated with vascular endothelial dysfunction. kynurenines and their ratios are prognostic parameters in coronary artery disease. Increased kynurenine/tryptophan ratio correlates with increased intima-media thickness and represents advanced atherosclerosis. However, after bariatric surgery, weight reduction does not lead to the normalization of IDO1 activity and atherosclerosis. IDO1 is involved in the mechanisms of immune tolerance and in the concept of tumor immuno-editing process in cancer development. Serum IDO1 activity is still used as a parameter in cancer development and growth. IDO-producing tumors show a high total IDO immunostaining score, and thus, using IDO inhibitors, such as Epacadostat, Navoximod, and L isomer of 1-methyl-tryptophan, seems an important modality for cancer treatment. There is an inverse correlation between serum folate concentration and body mass index, thus folate deficiency leads to hyperhomocysteinemia-induced oxidative stress. Immune checkpoint blockade targeting cytotoxic T-lymphocyte-associated protein-4 synergizes with imatinib, which is an inhibitor of mitochondrial folate-mediated one-carbon (1C) metabolism. Antitumor effects of imatinib are enhanced by increasing T-cell effector function in the presence of IDO inhibition. Combining IDO targeting with chemotherapy, radiotherapy and/or immunotherapy, may be an effective tool against a wide range of malignancies. However, there are some controversial results regarding the efficacy of IDO1 inhibitors in cancer treatment.
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Affiliation(s)
- Ayse Basak Engin
- Faculty of Pharmacy, Department of Toxicology, Gazi University, Hipodrom, Ankara, Turkey.
| | - Atilla Engin
- Faculty of Medicine, Department of General Surgery, Gazi University, Besevler, Ankara, Turkey
- Mustafa Kemal Mah. 2137. Sok. 8/14, 06520, Cankaya, Ankara, Turkey
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9
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Zhu Y, Liu B, Chen Z, Wang X, Wang Y, Zhang W, Wang S, Zhang M, Li Y. Synthesis, evaluation and molecular dynamics study of human toll-like receptor 2/6 specific monoacyl lipopeptides as candidate immunostimulants. Bioorg Chem 2023; 141:106823. [PMID: 37708825 DOI: 10.1016/j.bioorg.2023.106823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/14/2023] [Accepted: 08/27/2023] [Indexed: 09/16/2023]
Abstract
TLR2 agonists typified by the S-[2,3-bis(palmitoyloxy)-(2RS)-propyl]-R-cysteinyl-S-serine (Pam2CS) motif have exhibited powerful immunostimulatory activities. Based on simplified monoacyl lipopeptide (Carbamate-linked N-Ac PamCS), we describe interesting SAR investigations where modifications are done to alter the size of substituents on the cysteine amine, introduce ionizable groups to the terminal and insert aromatic substitutions to the aliphatic chain. Our structural modifications have led to a highly specific human TLR2/6 agonist 14a (EC50 = 0.424 nM), which behaves like Pam2CSK4 by inducing NF-κB activation to trigger downstream signaling pathways, such as subsequent phosphorylation of related proteins (p65, p38) and production of key inflammatory cytokines (IL-6, IL-1β, TNF-α). Importantly, the ability to stimulate enhanced T cell response compared to Carbamate-linked N-Ac PamCS makes compound 14a a further potential candidate immunostimulant.
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Affiliation(s)
- Yueyue Zhu
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Bo Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zonglong Chen
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Xianyang Wang
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yujie Wang
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Wenhong Zhang
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, 200040, China; Shanghai Huashen Institute of Microbes and Infections, NO.6 Lane 1220 Huashan Rd., Shanghai 200052, China
| | - Sen Wang
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Shanghai Medical College, Fudan University, 200040, China; Shanghai Huashen Institute of Microbes and Infections, NO.6 Lane 1220 Huashan Rd., Shanghai 200052, China
| | - Mingming Zhang
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Yingxia Li
- School of Pharmacy, Fudan University, Shanghai 201203, China.
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10
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Nery NM, Santana HM, Rego CMA, Lopes JA, Silva MDS, Ferreira E Ferreira AA, Reis VP, Paloschi MV, Serrath SN, Bastos JSF, Silva CP, Magalhães JGS, Cruz LF, Setubal SS, Zuliani JP. Bothrops jararacussu snake venom decreases CD1d, CD83, and CD86 expression on bone marrow-derived dendritic cells. Immunol Lett 2023; 262:7-17. [PMID: 37634711 DOI: 10.1016/j.imlet.2023.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/22/2023] [Accepted: 08/23/2023] [Indexed: 08/29/2023]
Abstract
This study was designed to characterize mice bone marrow (BM) and bone marrow-derived dendritic cells (BMDC) and to compare the surface markers expression and inflammatory cytokine liberation in response to LPS and Bothrops jararacussu venom (BjV) stimulation. Typical morphology was observed in BM and BMDCs from the 4th up to the 8th day of culture using recombinant mouse GM-CSF and IL-4. A high basal level of MHC-II, CD1d, CD83, CD11c, CD80, and low CD86 was expressed by BM cells. After stimulation with GM-CSF/IL-4 for BMDCs differentiation, the BM cells differentiated into BMDCs presented MHC-II, CD1d, CD83, CD11c, CD86, and CD80 expression on the 4th - 8th day accompanied with high levels of TNF-α liberated. The difference between the surface markers' expression was observed in this time course in which CD1d, CD11c, and CD80 remained in high levels of expression, while MHC-II and CD83 showed moderate expression during the differentiation period. Also, cytokines liberation was monitored over the period of the BMDCs culture, and on the 6th day, low levels of IL-6 and IL-1β were found, while high levels of TNF-α on the 4th and 8th days, both of which contributed to the maturity of the BMDCs. Maturation of DCs with LPS showed significant upregulation of surface markers (MHC-II, CD1d, CD83, CD86, CD80) and pro-inflammatory cytokines (IL-1β, IL-6, TNF-α) liberation. On the other hand, BjV induced a decrease in CD1d, CD11c, CD83, and CD86 expression in mature BMDCs which was not observed when LPS was used to stimulate BMDCs which probably induces impairment in T-cell activation.
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Affiliation(s)
- N M Nery
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - H M Santana
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - C M A Rego
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - J A Lopes
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - M D S Silva
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - A A Ferreira E Ferreira
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - V P Reis
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - M V Paloschi
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - S N Serrath
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - J S F Bastos
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - C P Silva
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - J G S Magalhães
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - L F Cruz
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - S S Setubal
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil
| | - J P Zuliani
- Laboratório de Imunologia Celular Aplicada à Saúde, Fundação Oswaldo Cruz, FIOCRUZ Rondônia, Porto Velho-RO, Brazil; Departamento de Medicina, Universidade Federal de Rondônia, UNIR, Porto Velho-RO, Brazil.
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11
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Han J, Bhatta R, Liu Y, Bo Y, Elosegui-Artola A, Wang H. Metabolic glycan labeling immobilizes dendritic cell membrane and enhances antitumor efficacy of dendritic cell vaccine. Nat Commun 2023; 14:5049. [PMID: 37598185 PMCID: PMC10439884 DOI: 10.1038/s41467-023-40886-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 08/14/2023] [Indexed: 08/21/2023] Open
Abstract
Dendritic cell (DC) vaccine was among the first FDA-approved cancer immunotherapies, but has been limited by the modest cytotoxic T lymphocyte (CTL) response and therapeutic efficacy. Here we report a facile metabolic labeling approach that enables targeted modulation of adoptively transferred DCs for developing enhanced DC vaccines. We show that metabolic glycan labeling can reduce the membrane mobility of DCs, which activates DCs and improves the antigen presentation and subsequent T cell priming property of DCs. Metabolic glycan labeling itself can enhance the antitumor efficacy of DC vaccines. In addition, the cell-surface chemical tags (e.g., azido groups) introduced via metabolic glycan labeling also enable in vivo conjugation of cytokines onto adoptively transferred DCs, which further enhances CTL response and antitumor efficacy. Our DC labeling and targeting technology provides a strategy to improve the therapeutic efficacy of DC vaccines, with minimal interference upon the clinical manufacturing process.
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Affiliation(s)
- Joonsu Han
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Rimsha Bhatta
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Yusheng Liu
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Yang Bo
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Alberto Elosegui-Artola
- Cell and Tissue Mechanobiology Laboratory, Francis Crick Institute, London, UK
- Department of Physics, King's College London, London, UK
| | - Hua Wang
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Cancer Center at Illinois (CCIL), Urbana, IL, 61801, USA.
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Carle College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
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12
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Schmassmann P, Roux J, Buck A, Tatari N, Hogan S, Wang J, Rodrigues Mantuano N, Wieboldt R, Lee S, Snijder B, Kaymak D, Martins TA, Ritz MF, Shekarian T, McDaid M, Weller M, Weiss T, Läubli H, Hutter G. Targeting the Siglec-sialic acid axis promotes antitumor immune responses in preclinical models of glioblastoma. Sci Transl Med 2023; 15:eadf5302. [PMID: 37467314 DOI: 10.1126/scitranslmed.adf5302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 06/13/2023] [Indexed: 07/21/2023]
Abstract
Glioblastoma (GBM) is the most aggressive form of primary brain tumor, for which effective therapies are urgently needed. Cancer cells are capable of evading clearance by phagocytes such as microglia- and monocyte-derived cells through engaging tolerogenic programs. Here, we found that high expression of sialic acid-binding immunoglobulin-like lectin 9 (Siglec-9) correlates with reduced survival in patients with GBM. Using microglia- and monocyte-derived cell-specific knockouts of Siglec-E, the murine functional homolog of Siglec-9, together with single-cell RNA sequencing, we demonstrated that Siglec-E inhibits phagocytosis by these cells, thereby promoting immune evasion. Loss of Siglec-E on monocyte-derived cells further enhanced antigen cross-presentation and production of pro-inflammatory cytokines, which resulted in more efficient T cell priming. This bridging of innate and adaptive responses delayed tumor growth and resulted in prolonged survival in murine models of GBM. Furthermore, we showed the combinatorial activity of Siglec-E blockade and other immunotherapies demonstrating the potential for targeting Siglec-9 as a treatment for patients with GBM.
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Affiliation(s)
- Philip Schmassmann
- Brain Tumor Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
| | - Julien Roux
- Bioinformatics Core Facility, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
- Swiss Institute of Bioinformatics, 4031 Basel, Switzerland
| | - Alicia Buck
- Department of Neurology, Clinical Neuroscience Center, University Hospital and University of Zurich, 8091 Zurich, Switzerland
| | - Nazanin Tatari
- Brain Tumor Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
| | - Sabrina Hogan
- Brain Tumor Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
| | - Jinyu Wang
- Cancer Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
| | - Natalia Rodrigues Mantuano
- Cancer Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
| | - Ronja Wieboldt
- Cancer Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
| | - Sohyon Lee
- Institute of Molecular Systems Biology, ETH Zurich, 8049 Zurich, Switzerland
| | - Berend Snijder
- Institute of Molecular Systems Biology, ETH Zurich, 8049 Zurich, Switzerland
| | - Deniz Kaymak
- Brain Tumor Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
| | - Tomás A Martins
- Brain Tumor Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
| | - Marie-Françoise Ritz
- Brain Tumor Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
| | - Tala Shekarian
- Brain Tumor Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
| | - Marta McDaid
- Brain Tumor Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
| | - Michael Weller
- Department of Neurology, Clinical Neuroscience Center, University Hospital and University of Zurich, 8091 Zurich, Switzerland
| | - Tobias Weiss
- Department of Neurology, Clinical Neuroscience Center, University Hospital and University of Zurich, 8091 Zurich, Switzerland
| | - Heinz Läubli
- Cancer Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
- Division of Oncology, Department of Theragnostics, University Hospital of Basel, 4031 Basel, Switzerland
| | - Gregor Hutter
- Brain Tumor Immunotherapy Lab, Department of Biomedicine, University Hospital and University of Basel, 4031 Basel, Switzerland
- Department of Neurosurgery, University Hospital of Basel, 4031 Basel, Switzerland
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13
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Zhang S, Audiger C, Chopin M, Nutt SL. Transcriptional regulation of dendritic cell development and function. Front Immunol 2023; 14:1182553. [PMID: 37520521 PMCID: PMC10382230 DOI: 10.3389/fimmu.2023.1182553] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 06/28/2023] [Indexed: 08/01/2023] Open
Abstract
Dendritic cells (DCs) are sentinel immune cells that form a critical bridge linking the innate and adaptive immune systems. Extensive research addressing the cellular origin and heterogeneity of the DC network has revealed the essential role played by the spatiotemporal activity of key transcription factors. In response to environmental signals DC mature but it is only following the sensing of environmental signals that DC can induce an antigen specific T cell response. Thus, whilst the coordinate action of transcription factors governs DC differentiation, sensing of environmental signals by DC is instrumental in shaping their functional properties. In this review, we provide an overview that focuses on recent advances in understanding the transcriptional networks that regulate the development of the reported DC subsets, shedding light on the function of different DC subsets. Specifically, we discuss the emerging knowledge on the heterogeneity of cDC2s, the ontogeny of pDCs, and the newly described DC subset, DC3. Additionally, we examine critical transcription factors such as IRF8, PU.1, and E2-2 and their regulatory mechanisms and downstream targets. We highlight the complex interplay between these transcription factors, which shape the DC transcriptome and influence their function in response to environmental stimuli. The information presented in this review provides essential insights into the regulation of DC development and function, which might have implications for developing novel therapeutic strategies for immune-related diseases.
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Affiliation(s)
- Shengbo Zhang
- Immunology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Cindy Audiger
- Immunology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Michaël Chopin
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
| | - Stephen L. Nutt
- Immunology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
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14
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Ruan Y, Wen Z, Chen K, Xi J, Wu B, Xu Z, Jiang M, Zhang J, Chen Y, Liu Q. Exogenous Interleukin-37 Alleviates Hepatitis with Reduced Dendritic Cells and Induced Regulatory T Cells in Acute Murine Cytomegalovirus Infection. J Immunol Res 2023; 2023:1462048. [PMID: 37215069 PMCID: PMC10198762 DOI: 10.1155/2023/1462048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 04/23/2023] [Accepted: 04/25/2023] [Indexed: 05/24/2023] Open
Abstract
Human cytomegalovirus (HCMV) infection is globally distributed, and the liver is one of the major targeting organs. So far, the mechanisms for cell and organ damage have not fully been elucidated and the treatments for the infection are mainly at symptoms. IL-37 has shown a protective role in certain inflammatory diseases. In the present study, potential protective effect of exogenous IL-37 on murine cytomegalovirus- (MCMV-) infected hepatitis was evaluated through analyses of serum transaminases, the liver histopathology and cytokine expression, and functional state of dendritic cells (DCs) and regulatory T cells (Tregs). These analyses showed a significant decrease in serum transaminase levels and a lower Ishak histopathologic score at the early stage of MCMV-infected mice with exogenous IL-37 pretreatment. The frequencies of MHC-Ⅱ, CD40, CD80, and CD86 positive DCs in the liver and spleen were decreased significantly at 7 days postinfection (dpi) in MCMV-infected mice with IL-37 pretreatment when compared with those without the pretreatment, while the total number of DCs in the liver was reduced in IL-37-pretreated mice. The induction of Tregs in the spleen was enhanced at dpi 3 with IL-37 pretreatment in MCMV-infected mice. The mRNA expression levels of cytokines in the liver were decreased significantly (IL-1β, IL-6, IL-10, IL-4) or to some extent (TGF-β and TNF-α). The present study suggested that exogenous IL-37 can alleviate MCMV-infected hepatitis, likely through reduced DCs and induced Tregs with a weaker cytokine storm, demonstrating its potential value in clinical management for HCMV-infected hepatitis.
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Affiliation(s)
- Yufei Ruan
- Department of Pediatric Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province 325027, China
- Department of Emergency, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Zhengwang Wen
- Department of Pediatric Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province 325027, China
| | - Ke Chen
- Department of Pediatric Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province 325027, China
| | - Jianan Xi
- Department of Pediatric Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province 325027, China
| | - Bo Wu
- School of Basic Medicine, Anhui Medical University, Hefei 230000, China
| | - Zhiyong Xu
- School of Basic Medicine, Anhui Medical University, Hefei 230000, China
| | - Minzhi Jiang
- School of Basic Medicine, Anhui Medical University, Hefei 230000, China
| | - Junling Zhang
- School of Basic Medicine, Anhui Medical University, Hefei 230000, China
| | - Yiping Chen
- Department of Pediatric Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province 325027, China
| | - Qi Liu
- Department of Pediatric Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province 325027, China
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15
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Zeng F, Wang X, Hu Y, Wang Z, Li Y, Hu J, Yu J, Zhou P, Teng X, Zhou H, Zheng H, Zhao F, Gu L, Yue C, Chen S, Cheng J, Hao Y, Zhao Q, Zhang C, Zou S, Hu Z, Wei X, Liu X, Li G, Huang N, Wu W, Zhou Y, Li W, Cui K, Li J. Interleukin-37 promotes DMBA/TPA skin cancer through SIGIRR-mediated inhibition of glycolysis in CD103 +DC cells. MedComm (Beijing) 2023; 4:e229. [PMID: 36891351 PMCID: PMC9986080 DOI: 10.1002/mco2.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 02/05/2023] [Accepted: 02/08/2023] [Indexed: 03/07/2023] Open
Abstract
Interleukin 37 (IL-37), a member of the IL-1 family, is considered a suppressor of innate and adaptive immunity and, hence is a regulator of tumor immunity. However, the specific molecular mechanism and role of IL-37 in skin cancer remain unclear. Here, we report that IL-37b-transgenic mice (IL-37tg) treated with the carcinogenic 7,12-dimethylbenzoanthracene (DMBA)/12-o-tetradecylphorbol-13-acetate (TPA) exhibited enhanced skin cancer and increased tumor burden in the skin by inhibiting the function of CD103+ dendritic cells (DCs). Notably, IL-37 induced rapid phosphorylation of adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK), and via single immunoglobulin IL-1-related receptor (SIGIRR), inhibited the long-term Akt activation. Specifically, by affecting the SIGIRR-AMPK-Akt signaling axis, which is related to the regulation of glycolysis in CD103+DCs, IL-37 inhibited their anti-tumor function. Our results show that a marked correlation between the CD103+DC signature (IRF8, FMS-like tyrosine kinase 3 ligand, CLEC9A, CLNK, XCR1, BATF3, and ZBTB46) and chemokines C-X-C motif chemokine ligand 9, CXCL10, and CD8A in a mouse model with DMBA/TPA-induced skin cancer. In a word, our results highlight that IL-37 as an inhibitor of tumor immune surveillance through modulating CD103+DCs and establishing an important link between metabolism and immunity as a therapeutic target for skin cancer.
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Affiliation(s)
- Fan‐lian Zeng
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Xiao‐yan Wang
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Ya‐wen Hu
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Zhen Wang
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
- Department of Liver Surgery and Liver TransplantationWest China HospitalSichuan University and Collaborative Innovation Center of BiotherapyChengduChina
- Laboratory of Liver SurgeryWest China HospitalSichuan UniversityChengduChina
| | - Ya Li
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Jing Hu
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Jia‐dong Yu
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Pei Zhou
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Xiu Teng
- Laboratory of Human Disease and ImmunotherapiesWest China HospitalSichuan UniversityChengduChina
| | - Hong Zhou
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Hua‐ping Zheng
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Fu‐lei Zhao
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Lin‐na Gu
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Cheng‐cheng Yue
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Shu‐wen Chen
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Juan Cheng
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Yan Hao
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Qi‐xiang Zhao
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Chen Zhang
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Song Zou
- Department of CardiologyWest China HospitalSichuan UniversityChengduChina
| | - Zhong‐lan Hu
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Xiao‐qiong Wei
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Xiao Liu
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Guo‐lin Li
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Nong‐yu Huang
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Wen‐ling Wu
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Yi‐fan Zhou
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
| | - Wei Li
- Department of DermatovenereologyWest China HospitalSichuan UniversityChengduChina
| | - Kaijun Cui
- Department of CardiologyWest China HospitalSichuan UniversityChengduChina
| | - Jiong Li
- State Key Laboratory of Biotherapy and Cancer CenterWest China HospitalWest China Medical SchoolSichuan University and Collaborative Innovation Center for BiotherapyChengduChina
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16
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CTCF controls three-dimensional enhancer network underlying the inflammatory response of bone marrow-derived dendritic cells. Nat Commun 2023; 14:1277. [PMID: 36882470 PMCID: PMC9992691 DOI: 10.1038/s41467-023-36948-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/24/2023] [Indexed: 03/09/2023] Open
Abstract
Dendritic cells are antigen-presenting cells orchestrating innate and adaptive immunity. The crucial role of transcription factors and histone modifications in the transcriptional regulation of dendritic cells has been extensively studied. However, it is not been well understood whether and how three-dimensional chromatin folding controls gene expression in dendritic cells. Here we demonstrate that activation of bone marrow-derived dendritic cells induces extensive reprogramming of chromatin looping as well as enhancer activity, both of which are implicated in the dynamic changes in gene expression. Interestingly, depletion of CTCF attenuates GM-CSF-mediated JAK2/STAT5 signaling, resulting in defective NF-κB activation. Moreover, CTCF is necessary for establishing NF-κB-dependent chromatin interactions and maximal expression of pro-inflammatory cytokines, which prime Th1 and Th17 cell differentiation. Collectively, our study provides mechanistic insights into how three-dimensional enhancer networks control gene expression during bone marrow-derived dendritic cells activation, and offers an integrative view of the complex activities of CTCF in the inflammatory response of bone marrow-derived dendritic cells.
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17
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Li Z, Kuo CC, Ticconi F, Shaigan M, Gehrmann J, Gusmao EG, Allhoff M, Manolov M, Zenke M, Costa IG. RGT: a toolbox for the integrative analysis of high throughput regulatory genomics data. BMC Bioinformatics 2023; 24:79. [PMID: 36879236 PMCID: PMC9990262 DOI: 10.1186/s12859-023-05184-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 02/13/2023] [Indexed: 03/08/2023] Open
Abstract
BACKGROUND Massive amounts of data are produced by combining next-generation sequencing with complex biochemistry techniques to characterize regulatory genomics profiles, such as protein-DNA interaction and chromatin accessibility. Interpretation of such high-throughput data typically requires different computation methods. However, existing tools are usually developed for a specific task, which makes it challenging to analyze the data in an integrative manner. RESULTS We here describe the Regulatory Genomics Toolbox (RGT), a computational library for the integrative analysis of regulatory genomics data. RGT provides different functionalities to handle genomic signals and regions. Based on that, we developed several tools to perform distinct downstream analyses, including the prediction of transcription factor binding sites using ATAC-seq data, identification of differential peaks from ChIP-seq data, and detection of triple helix mediated RNA and DNA interactions, visualization, and finding an association between distinct regulatory factors. CONCLUSION We present here RGT; a framework to facilitate the customization of computational methods to analyze genomic data for specific regulatory genomics problems. RGT is a comprehensive and flexible Python package for analyzing high throughput regulatory genomics data and is available at: https://github.com/CostaLab/reg-gen . The documentation is available at: https://reg-gen.readthedocs.io.
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Affiliation(s)
- Zhijian Li
- Institute for Computational Genomics, Medical Faculty, RWTH Aachen University, 52074, Aachen, Germany.
- Joint Research Center for Computational Biomedicine, RWTH Aachen University Hospital, 52074, Aachen, Germany.
| | - Chao-Chung Kuo
- Institute for Computational Genomics, Medical Faculty, RWTH Aachen University, 52074, Aachen, Germany
- Joint Research Center for Computational Biomedicine, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Fabio Ticconi
- Institute for Computational Genomics, Medical Faculty, RWTH Aachen University, 52074, Aachen, Germany
- Joint Research Center for Computational Biomedicine, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Mina Shaigan
- Institute for Computational Genomics, Medical Faculty, RWTH Aachen University, 52074, Aachen, Germany
- Joint Research Center for Computational Biomedicine, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Julia Gehrmann
- Institute for Computational Genomics, Medical Faculty, RWTH Aachen University, 52074, Aachen, Germany
- Joint Research Center for Computational Biomedicine, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Eduardo Gade Gusmao
- Institute for Computational Genomics, Medical Faculty, RWTH Aachen University, 52074, Aachen, Germany
- Joint Research Center for Computational Biomedicine, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Manuel Allhoff
- Institute for Computational Genomics, Medical Faculty, RWTH Aachen University, 52074, Aachen, Germany
- Joint Research Center for Computational Biomedicine, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Martin Manolov
- Institute for Computational Genomics, Medical Faculty, RWTH Aachen University, 52074, Aachen, Germany
- Joint Research Center for Computational Biomedicine, RWTH Aachen University Hospital, 52074, Aachen, Germany
| | - Martin Zenke
- Department of Cell Biology, Institute of Biomedical Engineering, RWTH Aachen University Medical School, 52074, Aachen, Germany
- Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, 52074, Aachen, Germany
- Department of Hematology, Oncology, Hemostaseology, and Stem Cell Transplantation, Faculty of Medicine, RWTH Aachen University, 52074, Aachen, Germany
| | - Ivan G Costa
- Institute for Computational Genomics, Medical Faculty, RWTH Aachen University, 52074, Aachen, Germany.
- Joint Research Center for Computational Biomedicine, RWTH Aachen University Hospital, 52074, Aachen, Germany.
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18
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Flosdorf N, Zenke M. Dendritic cells generated from induced pluripotent stem cells and by direct reprogramming of somatic cells. Eur J Immunol 2022; 52:1880-1888. [PMID: 36045608 DOI: 10.1002/eji.202149550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/04/2022] [Accepted: 08/22/2022] [Indexed: 12/13/2022]
Abstract
Novel and exciting avenues allow generating dendritic cells (DC) by reprogramming of somatic cells. DC are obtained from induced pluripotent stem cells (iPS cells), referred to as ipDC, and by direct reprogramming of cells toward DC, referred to as induced DC (iDC). iPS cells represent pluripotent stem cells generated by reprogramming of somatic cells and can differentiate into all cell types of the body, including DC. This makes iPS cells and ipDC derived thereof useful for studying various DC subsets, acquiring high cell numbers for research and clinical use, or applying genome editing to generate DC with wanted properties. Thereby, ipDC overcome limitations in specific DC subsets, which are only found in low abundance in blood or lymphoid organs. iDC are generated by direct reprogramming of somatic cells with a specific set of transcription factors and offer an avenue to obtain DC without a pluripotent cell intermediate. ipDC and iDC retain patient and disease-specific mutations and this opens new perspectives for studying DC in disease. This review summarizes the current techniques used to generate ipDC and iDC, and the types and functionality of the DC generated.
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Affiliation(s)
- Niclas Flosdorf
- Department of Cell and Tumor Biology, RWTH Aachen University Hospital, Aachen, Germany.,Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, RWTH Aachen University Medical Center, Aachen, Germany
| | - Martin Zenke
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, RWTH Aachen University Medical Center, Aachen, Germany.,Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Aachen, Germany.,Department of Cell Biology, Institute of Biomedical Engineering, RWTH Aachen University Medical School, Aachen, Germany.,Helmholtz Institute for Biomedical Engineering, RWTH Aachen University, Aachen, Germany
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19
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Wu YW, Wang WY, Chen YH. Positively charged nanocomplex modulates dendritic cell differentiation to enhance Th1 immune response. Mater Today Bio 2022; 17:100480. [PMID: 36353390 PMCID: PMC9638821 DOI: 10.1016/j.mtbio.2022.100480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/27/2022] [Accepted: 10/29/2022] [Indexed: 11/09/2022] Open
Abstract
Most existing vaccines use activators that polarize the immune response to T-helper (Th) 2 response for antibody production. Our positively charged chitosan (Cs)-based nanocomplex (CNC) drives the Th1 response through unknown mechanisms. As receptors for the positively charged CNC are not determined, the physico-chemical properties are hypothesized to correlate with its immunomodulatory effects. To clarify the effects of surface charge and size on the immune response, smaller CNC and negatively charged CNC encapsulating ovalbumin are tested on dendritic cell (DC) 2.4 cells. The negatively charged CNC loses activity, but the smaller CNC does not. To further evaluate the material effects, we replace Cs by poly-amino acids. Compared with the negatively charged nanocomplex, the positively charged one preserves its activity. Using immature bone marrow-derived DCs (BMDC) enriched from BALB/c mice as a model to analyze DC differentiation, treatments with positively charged nanocomplexes evidently increase the proportions of Langerin+ dermal DC, CD11blo interstitial DC, and CD8a+ conventional DC. Additionally, vaccination with two doses containing positively charged nanocomplexes are safe and increase ovalbumin-specific IgG and recall T-cell responses in mice. Overall, a positive charge seems to contribute to the immunological effect of nanocomplexes on elevating the Th1 response by modulating DC differentiation.
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20
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Liu X, Li Y, Jiang X, Deng Y, Ma C, Yu Q, Gao D. Long non-coding RNA: Multiple effects on the differentiation, maturity and cell function of dendritic cells. Clin Immunol 2022; 245:109167. [DOI: 10.1016/j.clim.2022.109167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 07/29/2022] [Accepted: 10/15/2022] [Indexed: 11/15/2022]
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21
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Ma X, Zhu H, Cheng L, Chen X, Shu K, Zhang S. Targeting FGL2 in glioma immunosuppression and malignant progression. Front Oncol 2022; 12:1004700. [PMID: 36313679 PMCID: PMC9606621 DOI: 10.3389/fonc.2022.1004700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/26/2022] [Indexed: 11/23/2022] Open
Abstract
Glioblastoma (GBM) is the most malignant type of glioma with the worst prognosis. Traditional therapies (surgery combined with radiotherapy and chemotherapy) have limited therapeutic effects. As a novel therapy emerging in recent years, immunotherapy is increasingly used in glioblastoma (GBM), so we expect to discover more effective immune targets. FGL2, a member of the thrombospondin family, plays an essential role in regulating the activity of immune cells and tumor cells in GBM. Elucidating the role of FGL2 in GBM can help improve immunotherapy efficacy and design treatment protocols. This review discusses the immunosuppressive role of FGL2 in the GBM tumor microenvironment and its ability to promote malignant tumor progression while considering FGL2-targeted therapeutic strategies. Also, we summarize the molecular mechanisms of FGL2 expression on various immune cell types and discuss the possibility of FGL2 and its related mechanisms as new GBM immunotherapy.
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Affiliation(s)
- Xiaoyu Ma
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongtao Zhu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lidong Cheng
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xin Chen
- Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Shu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Suojun Zhang
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Suojun Zhang,
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22
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Tsymbalyuk O, Gerzanich V, Simard JM, Rathinam CV. Traumatic brain injury alters dendritic cell differentiation and distribution in lymphoid and non-lymphoid organs. J Neuroinflammation 2022; 19:238. [PMID: 36183126 PMCID: PMC9526328 DOI: 10.1186/s12974-022-02609-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 09/24/2022] [Indexed: 11/10/2022] Open
Abstract
Background Pathophysiological consequences of traumatic brain injury (TBI) mediated secondary injury remain incompletely understood. In particular, the impact of TBI on the differentiation and maintenance of dendritic cells (DCs), which are regarded as the most professional antigen presenting cells of the immune system, remains completely unknown. Here, we report that DC-differentiation, maintenance and functions are altered on day 3 and day 7 after TBI. Methods Long bones, spleen, peripheral lymph nodes (pLNs), mesenteric lymph nodes (mLNs), liver, lungs, skin and blood were collected from mice with either moderate-level cortical impact (CCI) or sham on day 1, day 3 or day 7 after TBI. Bone marrow cells were isolated from the tibias and femurs of hind limb through flushing. Tissues were digested with Collagenase-D and DNase I. Skin biopsies were digested in the presence of liberase + DNase I. Single cell suspensions were made, red blood cells were lysed with Ammonium chloride (Stem Cell Technology) and subsequently filtered using a 70 μM nylon mesh. DC subsets of the tissues and DC progenitors of the BM were identified through 10-color flow cytometry-based immunophenotyping studies. Intracellular reactive oxygen species (ROS) were identified through H2DCFDA staining. Results Our studies identify that; (1) frequencies and absolute numbers of DCs in the spleen and BM are altered on day 3 and day 7 after TBI; (2) surface expression of key molecules involved in antigen presentation of DCs were affected on day 3 and day 7 after TBI; (3) distribution and functions of tissue-specific DC subsets of both circulatory and lymphatic systems were imbalanced following TBI; (4) early differentiation program of DCs, especially the commitment of hematopoietic stem cells to common DC progenitors (CDPs), were deregulated after TBI; and (5) intracellular ROS levels were reduced in DC progenitors and differentiated DCs on day 3 and day 7 after TBI. Conclusions Our data demonstrate, for the first time, that TBI affects the distribution pattern of DCs and induces an imbalance among DC subsets in both lymphoid and non-lymphoid organs. In addition, the current study demonstrates that TBI results in reduced levels of ROS in DCs on day 3 and day 7 after TBI, which may explain altered DC differentiation paradigm following TBI. A deeper understanding on the molecular mechanisms that contribute to DC defects following TBI would be essential and beneficial in treating infections in patients with acute central nervous system (CNS) injuries, such as TBI, stroke and spinal cord injury.
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Affiliation(s)
- Orest Tsymbalyuk
- Department of Neurosurgery, University of Maryland School of Medicine, MD, Baltimore, USA
| | - Volodymyr Gerzanich
- Department of Neurosurgery, University of Maryland School of Medicine, MD, Baltimore, USA
| | - J Marc Simard
- Department of Neurosurgery, University of Maryland School of Medicine, MD, Baltimore, USA.,Research Service, Veterans Affairs Maryland Health Care System, MD, Baltimore, USA.,Department of Pathology, University of Maryland School of Medicine, MD, Baltimore, USA.,Department of Physiology, University of Maryland School of Medicine, MD, Baltimore, USA
| | - Chozha Vendan Rathinam
- Institute of Human Virology, University of Maryland School of Medicine, 725 West Lombard Street, Baltimore, MD, 21201, USA. .,Center for Stem Cell and Regenerative Medicine, University of Maryland School of Medicine, MD, 21201, Baltimore, USA.
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23
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Shah PT, Tufail M, Wu C, Xing L. THP-1 cell line model for tuberculosis: A platform for in vitro macrophage manipulation. Tuberculosis (Edinb) 2022; 136:102243. [PMID: 35963145 DOI: 10.1016/j.tube.2022.102243] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/20/2022] [Accepted: 07/31/2022] [Indexed: 11/18/2022]
Abstract
Macrophages are large mononuclear phagocytic cells that play a vital role in the immune response. They are present in all body tissues with extremely heterogeneous and plastic phenotypes that adapt to the organs and tissues in which they live and respond in the first-line against invading microorganisms. Tuberculosis (TB) is caused by the pathogenic bacteria Mycobacterium tuberculosis (Mtb), which is among the top 10 global infectious agents and the leading cause of mortality, ranking above human immunodeficiency virus (HIV), as a single infectious agent. Macrophages, upon Mtb infection, not only phagocytose the bacteria and present the antigens to T-cells, but also react rapidly by developing antimycobacterial immune response depending highly on the production of cytokines. However, Mtb is also capable of intracellular survival in instances of sub-optimal activation of macrophages. Hence, several systems have been established to evaluate the Mtb-macrophage interaction, where the THP-1 monocytes have been developed as an attractive model for in vitro polarized monocyte-derived macrophages. This model is extensively used for Mtb as well as other intracellular bacterial studies. Herein, we have summarized the updated implications of the THP-1 model for TB-related studies and discussed the pros and cons compared to other cell models of TB.
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Affiliation(s)
- Pir Tariq Shah
- Institutes of Biomedical Sciences, Shanxi University, 92 Wucheng Road, Taiyuan, 030006, Shanxi province, China
| | - Muhammad Tufail
- Institutes of Biomedical Sciences, Shanxi University, 92 Wucheng Road, Taiyuan, 030006, Shanxi province, China
| | - Changxin Wu
- Institutes of Biomedical Sciences, Shanxi University, 92 Wucheng Road, Taiyuan, 030006, Shanxi province, China; The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, 92 Wucheng Road, Taiyuan, 030006, China; Shanxi Provincial Key Laboratory for Prevention and Treatment of Major Infectious Diseases, 92 Wucheng Road, Taiyuan, 030006, China
| | - Li Xing
- Institutes of Biomedical Sciences, Shanxi University, 92 Wucheng Road, Taiyuan, 030006, Shanxi province, China; The Key Laboratory of Medical Molecular Cell Biology of Shanxi Province, Shanxi University, 92 Wucheng Road, Taiyuan, 030006, China; Shanxi Provincial Key Laboratory for Prevention and Treatment of Major Infectious Diseases, 92 Wucheng Road, Taiyuan, 030006, China.
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24
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Class I PI3K regulatory subunits control differentiation of dendritic cell subsets and regulate Flt3L mediated signal transduction. Sci Rep 2022; 12:12311. [PMID: 35853935 PMCID: PMC9296662 DOI: 10.1038/s41598-022-16548-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 07/12/2022] [Indexed: 11/18/2022] Open
Abstract
Dendritic cells (DCs) play pivotal roles in initiating and shaping both innate and adaptive immune responses. The spatiotemporal expression of transcription factor networks and activation of specific signal transduction pathways determine the specification, distribution and differentiation of DC subsets. Even though pioneering studies have established indispensable roles for specific catalytic subunits (p110δ and p110γ) in immune cells, functions of the regulatory subunits, particularly of Class I PI3K, within the hematopoietic system remain incompletely understood. In the study presented here, we deleted the key regulatory subunits—p85α and p85β of the Class IA PI3K in hematopoietic cells and studied its impact on DC differentiation. Our studies identify that a deficiency of p85 causes increased differentiation of conventional DC (cDC) 2 and plasmacytoid DC (pDC) subsets in the spleen. On the other hand, DC numbers in the bone marrow (BM), thymus and lymph nodes were decreased in p85 mutant mice. Analysis of DC-specific progenitors and precursors indicated increased numbers in the BM and spleen of p85 deficient mice. In-vitro differentiation studies demonstrated augmented DC-differentiation capacities of p85 deficient BM cells in the presence of GM-CSF and Flt3L. BM chimera studies established that p85 deficiency affects DC development through cell intrinsic mechanisms. Molecular studies revealed increased proliferation of DCs and common DC progenitors (CDPs) in the absence of p85 and altered signal transduction pathways in p85 mutant DC subsets in response to Flt3L. In essence, data presented here, for the first time, unequivocally establish that the P85α subunit of class IA PI3Ks has an indispensable role in the development and maintenance of DCs.
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25
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Jakubison BL, Sarkar T, Gudmundsson KO, Singh S, Sun L, Morris HM, Klarmann KD, Keller JR. ID2 and HIF-1α collaborate to protect quiescent hematopoietic stem cells from activation, differentiation, and exhaustion. J Clin Invest 2022; 132:152599. [PMID: 35775482 PMCID: PMC9246389 DOI: 10.1172/jci152599] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 04/26/2022] [Indexed: 11/17/2022] Open
Abstract
Defining mechanism(s) that maintain tissue stem quiescence is important for improving tissue regeneration, cell therapies, aging, and cancer. We report here that genetic ablation of Id2 in adult hematopoietic stem cells (HSCs) promotes increased HSC activation and differentiation, which results in HSC exhaustion and bone marrow failure over time. Id2Δ/Δ HSCs showed increased cycling, ROS production, mitochondrial activation, ATP production, and DNA damage compared with Id2+/+ HSCs, supporting the conclusion that Id2Δ/Δ HSCs are less quiescent. Mechanistically, HIF-1α expression was decreased in Id2Δ/Δ HSCs, and stabilization of HIF-1α in Id2Δ/Δ HSCs restored HSC quiescence and rescued HSC exhaustion. Inhibitor of DNA binding 2 (ID2) promoted HIF-1α expression by binding to the von Hippel-Lindau (VHL) protein and interfering with proteasomal degradation of HIF-1α. HIF-1α promoted Id2 expression and enforced a positive feedback loop between ID2 and HIF-1α to maintain HSC quiescence. Thus, sustained ID2 expression could protect HSCs during stress and improve HSC expansion for gene editing and cell therapies.
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Affiliation(s)
- Brad L Jakubison
- Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA.,Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI) - Frederick, NIH, Frederick, Maryland, USA
| | - Tanmoy Sarkar
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI) - Frederick, NIH, Frederick, Maryland, USA
| | - Kristbjorn O Gudmundsson
- Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA.,Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI) - Frederick, NIH, Frederick, Maryland, USA
| | - Shweta Singh
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI) - Frederick, NIH, Frederick, Maryland, USA
| | - Lei Sun
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI) - Frederick, NIH, Frederick, Maryland, USA
| | - Holly M Morris
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI) - Frederick, NIH, Frederick, Maryland, USA
| | - Kimberly D Klarmann
- Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Jonathan R Keller
- Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA.,Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute (NCI) - Frederick, NIH, Frederick, Maryland, USA
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26
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Dendritic Cells and Their Immunotherapeutic Potential for Treating Type 1 Diabetes. Int J Mol Sci 2022; 23:ijms23094885. [PMID: 35563276 PMCID: PMC9099521 DOI: 10.3390/ijms23094885] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/22/2022] [Accepted: 04/26/2022] [Indexed: 12/15/2022] Open
Abstract
Type 1 diabetes (T1D) results from the destruction of pancreatic beta cells through a process that is primarily mediated by T cells. Emerging evidence suggests that dendritic cells (DCs) play a crucial role in initiating and developing this debilitating disease. DCs are professional antigen-presenting cells with the ability to integrate signals arising from tissue infection or injury that present processed antigens from these sites to naïve T cells in secondary lymphoid organs, thereby triggering naïve T cells to differentiate and modulate adaptive immune responses. Recent advancements in our knowledge of the various subsets of DCs and their cellular structures and methods of orchestration over time have resulted in a better understanding of how the T cell response is shaped. DCs employ various arsenal to maintain their tolerance, including the induction of effector T cell deletion or unresponsiveness and the generation and expansion of regulatory T cell populations. Therapies that suppress the immunogenic effects of dendritic cells by blocking T cell costimulatory pathways and proinflammatory cytokine production are currently being sought. Moreover, new strategies are being developed that can regulate DC differentiation and development and harness the tolerogenic capacity of these cells. Here, in this report, we focus on recent advances in the field of DC immunology and evaluate the prospects of DC-based therapeutic strategies to treat T1D.
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27
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Constant O, Maarifi G, Blanchet FP, Van de Perre P, Simonin Y, Salinas S. Role of Dendritic Cells in Viral Brain Infections. Front Immunol 2022; 13:862053. [PMID: 35529884 PMCID: PMC9072653 DOI: 10.3389/fimmu.2022.862053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/22/2022] [Indexed: 11/13/2022] Open
Abstract
To gain access to the brain, a so-called immune-privileged organ due to its physical separation from the blood stream, pathogens and particularly viruses have been selected throughout evolution for their use of specific mechanisms. They can enter the central nervous system through direct infection of nerves or cerebral barriers or through cell-mediated transport. Indeed, peripheral lymphoid and myeloid immune cells can interact with the blood-brain and the blood-cerebrospinal fluid barriers and allow viral brain access using the "Trojan horse" mechanism. Among immune cells, at the frontier between innate and adaptive immune responses, dendritic cells (DCs) can be pathogen carriers, regulate or exacerbate antiviral responses and neuroinflammation, and therefore be involved in viral transmission and spread. In this review, we highlight an important contribution of DCs in the development and the consequences of viral brain infections.
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Affiliation(s)
- Orianne Constant
- Pathogenesis and Control of Chronic and Emerging Infections, Institut national de la santé et de la recherche médicale (INSERM), University of Montpellier, Etablissement Français du Sang, Montpellier, France
| | - Ghizlane Maarifi
- Institut de Recherche en Infectiologie de Montpellier, Centre national de la recherche scientifique (CNRS), Université de Montpellier, Montpellier, France
| | - Fabien P. Blanchet
- Institut de Recherche en Infectiologie de Montpellier, Centre national de la recherche scientifique (CNRS), Université de Montpellier, Montpellier, France
| | - Philippe Van de Perre
- Pathogenesis and Control of Chronic and Emerging Infections, Institut national de la santé et de la recherche médicale (INSERM), University of Montpellier, Etablissement Français du Sang, Montpellier, France
| | - Yannick Simonin
- Pathogenesis and Control of Chronic and Emerging Infections, Institut national de la santé et de la recherche médicale (INSERM), University of Montpellier, Etablissement Français du Sang, Montpellier, France
| | - Sara Salinas
- Pathogenesis and Control of Chronic and Emerging Infections, Institut national de la santé et de la recherche médicale (INSERM), University of Montpellier, Etablissement Français du Sang, Montpellier, France
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28
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Matute JD, Finander B, Pepin D, Ai X, Smith NP, Li JZ, Edlow AG, Villani AC, Lerou PH, Kalish BT. Single-cell immunophenotyping of the fetal immune response to maternal SARS-CoV-2 infection in late gestation. Pediatr Res 2022; 91:1090-1098. [PMID: 34750520 PMCID: PMC8573077 DOI: 10.1038/s41390-021-01793-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/31/2021] [Accepted: 09/28/2021] [Indexed: 02/01/2023]
Abstract
BACKGROUND During the COVID-19 pandemic, thousands of pregnant women have been infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The implications of maternal SARS-CoV-2 infection on fetal and childhood well-being need to be characterized. We aimed to characterize the fetal immune response to maternal SARS-CoV-2 infection. METHODS We performed single-cell RNA-sequencing and T cell receptor sequencing on cord blood mononuclear cells (CBMCs) from newborns of mothers infected with SARS-CoV-2 in the third trimester (cases) or without SARS-CoV-2 infection (controls). RESULTS We identified widespread gene expression changes in CBMCs from cases, including upregulation of interferon-stimulated genes and major histocompatibility complex genes in CD14+ monocytes, transcriptional changes suggestive of activation of plasmacytoid dendritic cells, and activation and exhaustion of natural killer cells. Lastly, we observed fetal T cell clonal expansion in cases compared to controls. CONCLUSIONS As none of the infants were infected with SARS-CoV-2, our results suggest that maternal SARS-CoV-2 infection might modulate the fetal immune system in the absence of vertical transmission. IMPACT The implications of maternal SARS-CoV-2 infection in the absence of vertical transmission on fetal and childhood well-being are poorly understood. Maternal SARS-CoV-2 infection might modulate the fetal immune system in the absence of vertical transmission. This study raises important questions about the untoward effects of maternal SARS-CoV-2 on the fetus, even in the absence of vertical transmission.
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Affiliation(s)
- Juan D Matute
- Division of Neonatology and Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital (MGH), Boston, MA, USA.
| | - Benjamin Finander
- Division of Newborn Medicine, Department of Pediatrics, Boston Children's Hospital, Boston, MA, USA
| | - David Pepin
- Department of Pediatric Surgery, MGH, Boston, MA, USA
| | - Xingbin Ai
- Division of Neonatology and Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital (MGH), Boston, MA, USA
| | | | - Jonathan Z Li
- Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Andrea G Edlow
- Department of Obstetrics and Gynecology, MGH, Boston, MA, USA
| | | | - Paul H Lerou
- Division of Neonatology and Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital (MGH), Boston, MA, USA
| | - Brian T Kalish
- Division of Newborn Medicine, Department of Pediatrics, Boston Children's Hospital, Boston, MA, USA.
- Division of Neonatology, Department of Paediatrics, The Hospital for Sick Children, Toronto, ON, Canada.
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada.
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29
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Verheye E, Bravo Melgar J, Deschoemaeker S, Raes G, Maes A, De Bruyne E, Menu E, Vanderkerken K, Laoui D, De Veirman K. Dendritic Cell-Based Immunotherapy in Multiple Myeloma: Challenges, Opportunities, and Future Directions. Int J Mol Sci 2022; 23:904. [PMID: 35055096 PMCID: PMC8778019 DOI: 10.3390/ijms23020904] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 01/11/2022] [Indexed: 12/12/2022] Open
Abstract
Immunotherapeutic approaches, including adoptive cell therapy, revolutionized treatment in multiple myeloma (MM). As dendritic cells (DCs) are professional antigen-presenting cells and key initiators of tumor-specific immune responses, DC-based immunotherapy represents an attractive therapeutic approach in cancer. The past years, various DC-based approaches, using particularly ex-vivo-generated monocyte-derived DCs, have been tested in preclinical and clinical MM studies. However, long-term and durable responses in MM patients were limited, potentially attributed to the source of monocyte-derived DCs and the immunosuppressive bone marrow microenvironment. In this review, we briefly summarize the DC development in the bone marrow niche and the phenotypical and functional characteristics of the major DC subsets. We address the known DC deficiencies in MM and give an overview of the DC-based vaccination protocols that were tested in MM patients. Lastly, we also provide strategies to improve the efficacy of DC vaccines using new, improved DC-based approaches and combination therapies for MM patients.
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Affiliation(s)
- Emma Verheye
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussel, Belgium; (E.V.); (A.M.); (E.D.B.); (E.M.); (K.V.)
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, 1050 Brussels, Belgium; (J.B.M.); (S.D.); (G.R.)
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Jesús Bravo Melgar
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, 1050 Brussels, Belgium; (J.B.M.); (S.D.); (G.R.)
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Sofie Deschoemaeker
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, 1050 Brussels, Belgium; (J.B.M.); (S.D.); (G.R.)
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Geert Raes
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, 1050 Brussels, Belgium; (J.B.M.); (S.D.); (G.R.)
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Anke Maes
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussel, Belgium; (E.V.); (A.M.); (E.D.B.); (E.M.); (K.V.)
| | - Elke De Bruyne
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussel, Belgium; (E.V.); (A.M.); (E.D.B.); (E.M.); (K.V.)
| | - Eline Menu
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussel, Belgium; (E.V.); (A.M.); (E.D.B.); (E.M.); (K.V.)
| | - Karin Vanderkerken
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussel, Belgium; (E.V.); (A.M.); (E.D.B.); (E.M.); (K.V.)
| | - Damya Laoui
- Laboratory of Myeloid Cell Immunology, VIB Center for Inflammation Research, 1050 Brussels, Belgium; (J.B.M.); (S.D.); (G.R.)
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, 1050 Brussels, Belgium
| | - Kim De Veirman
- Laboratory of Hematology and Immunology, Myeloma Center Brussels, Vrije Universiteit Brussel, 1090 Brussel, Belgium; (E.V.); (A.M.); (E.D.B.); (E.M.); (K.V.)
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Chauhan KS, Das A, Jaiswal H, Saha I, Kaushik M, Patel VK, Tailor P. IRF8 and BATF3 interaction enhances the cDC1 specific Pfkfb3 gene expression. Cell Immunol 2021; 371:104468. [PMID: 34968772 DOI: 10.1016/j.cellimm.2021.104468] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 11/27/2021] [Accepted: 11/28/2021] [Indexed: 11/03/2022]
Abstract
Dendritic cells (DCs) play central role in innate as well as adaptive immune responses regulated by diverse DC subtypes that vary in terms of surface markers, transcriptional profile and functional responses. Generation of DC diversity from progenitor stage is tightly regulated by complex molecular inter-play between transcription factors. We earlier demonstrated that Batf3 and Id2 expression have a synergistic effect on the Irf8 directed classical cDC1 development. In present study, Bi-molecular fluorescence complementation assay suggested that IRF8 interacts with BATF3, and ID2 may aid cDC1 development independently. Genome wide recruitment analysis of IRF8 and BATF3 from different DC subtypes led to identification of the overlapping regions of occupancy by these two transcription factors. Further analysis of overlapping peaks of IRF8 and BATF3 occupancy in promoter region within the cDC1 subtype specific transcriptional pattern identified a metabolically important Pfkfb3 gene. Among various immune cell types; splenic cDC1 subtype displayed enhanced expression of Pfkfb3. Analysis of Irf8-/-, Irf8R294C and Batf3DCKO DC confirmed direct regulation of Pfkfb3 enhanced expression specifically in cDC1 subtype. Further we show that inhibition of PFKFB3 enzymatic activity by a chemical agent PFK15 led to reduction in cDC1 subtype in both in vitro FLDC cultures as well as in vivo mouse spleens. Together, our study identified the direct regulation of cDC1 specific enhanced expression of Pfkfb3 in glycolysis and cDC1 biology.
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Affiliation(s)
- Kuldeep Singh Chauhan
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India; Department of Molecular Microbiology, Washington University School of Medicine, St. Louis, MO, USA(1)
| | - Annesa Das
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India
| | - Hemant Jaiswal
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India; Laboratory of Molecular Immunology, National Institute of Allergy and, Infectious Diseases, National Institutes of Health, Bethesda, MD, USA(2)
| | - Irene Saha
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India; Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA(3)
| | - Monika Kaushik
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India; School of Biotechnology, Jawaharlal Nehru University, New Delhi, India(4)
| | | | - Prafullakumar Tailor
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India; Special Centre for Systems Medicine (SCSM), Jawaharlal Nehru University, New Delhi, India.
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Posttranslational modifications by ADAM10 shape myeloid antigen-presenting cell homeostasis in the splenic marginal zone. Proc Natl Acad Sci U S A 2021; 118:2111234118. [PMID: 34526403 DOI: 10.1073/pnas.2111234118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/20/2021] [Indexed: 12/26/2022] Open
Abstract
The spleen contains phenotypically and functionally distinct conventional dendritic cell (cDC) subpopulations, termed cDC1 and cDC2, which each can be divided into several smaller and less well-characterized subsets. Despite advances in understanding the complexity of cDC ontogeny by transcriptional programming, the significance of posttranslational modifications in controlling tissue-specific cDC subset immunobiology remains elusive. Here, we identified the cell-surface-expressed A-disintegrin-and-metalloproteinase 10 (ADAM10) as an essential regulator of cDC1 and cDC2 homeostasis in the splenic marginal zone (MZ). Mice with a CD11c-specific deletion of ADAM10 (ADAM10ΔCD11c) exhibited a complete loss of splenic ESAMhi cDC2A because ADAM10 regulated the commitment, differentiation, and survival of these cells. The major pathways controlled by ADAM10 in ESAMhi cDC2A are Notch, signaling pathways involved in cell proliferation and survival (e.g., mTOR, PI3K/AKT, and EIF2 signaling), and EBI2-mediated localization within the MZ. In addition, we discovered that ADAM10 is a molecular switch regulating cDC2 subset heterogeneity in the spleen, as the disappearance of ESAMhi cDC2A in ADAM10ΔCD11c mice was compensated for by the emergence of a Clec12a+ cDC2B subset closely resembling cDC2 generally found in peripheral lymph nodes. Moreover, in ADAM10ΔCD11c mice, terminal differentiation of cDC1 was abrogated, resulting in severely reduced splenic Langerin+ cDC1 numbers. Next to the disturbed splenic cDC compartment, ADAM10 deficiency on CD11c+ cells led to an increase in marginal metallophilic macrophage (MMM) numbers. In conclusion, our data identify ADAM10 as a molecular hub on both cDC and MMM regulating their transcriptional programming, turnover, homeostasis, and ability to shape the anatomical niche of the MZ.
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Novoszel P, Drobits B, Holcmann M, Fernandes CDS, Tschismarov R, Derdak S, Decker T, Wagner EF, Sibilia M. The AP-1 transcription factors c-Jun and JunB are essential for CD8α conventional dendritic cell identity. Cell Death Differ 2021; 28:2404-2420. [PMID: 33758366 PMCID: PMC8329169 DOI: 10.1038/s41418-021-00765-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 02/17/2021] [Accepted: 02/24/2021] [Indexed: 01/31/2023] Open
Abstract
Dendritic cell (DC) development is orchestrated by lineage-determining transcription factors (TFs). Although, members of the activator-protein-1 (AP-1) family, including Batf3, have been implicated in conventional (c)DC specification, the role of Jun proteins is poorly understood. Here, we identified c-Jun and JunB as essential for cDC1 fate specification and function. In mice, Jun proteins regulate extrinsic and intrinsic pathways, which control CD8α cDC1 diversification, whereas CD103 cDC1 development is unaffected. The loss of c-Jun and JunB in DC progenitors diminishes the CD8α cDC1 pool and thus confers resistance to Listeria monocytogenes infection. Their absence in CD8α cDC1 results in impaired TLR triggering and antigen cross-presentation. Both TFs are required for the maintenance of the CD8α cDC1 subset and suppression of cDC2 identity on a transcriptional and phenotypic level. Taken together, these results demonstrate the essential role of c-Jun and JunB in CD8α cDC1 diversification, function, and maintenance of their identity.
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Affiliation(s)
- Philipp Novoszel
- Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Barbara Drobits
- Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Martin Holcmann
- Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Cristiano De Sa Fernandes
- Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - Roland Tschismarov
- Department of Microbiology, Immunobiology and Genetics, Max Perutz Labs, University of Vienna, Vienna, Austria
| | - Sophia Derdak
- Core Facilities, Medical University of Vienna, Vienna, Austria
| | - Thomas Decker
- Department of Microbiology, Immunobiology and Genetics, Max Perutz Labs, University of Vienna, Vienna, Austria
| | - Erwin F Wagner
- Department of Dermatology and Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Maria Sibilia
- Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
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Wu X, Tang Y, Zhang S, Zhao X, Lin X. MyD88-Dependent Signaling Is Required for HOIP Deficiency-Induced Autoinflammation. THE JOURNAL OF IMMUNOLOGY 2021; 207:542-554. [PMID: 34253576 DOI: 10.4049/jimmunol.2100173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/06/2021] [Indexed: 11/19/2022]
Abstract
The linear ubiquitin chain assembly complex (LUBAC) plays pivotal roles in regulating lymphocyte activation, inflammation, and cell death. This is highlighted by the fact that patients with mutations in LUBAC catalytic subunit HOIP suffer from autoinflammation combined with immunodeficiency. Although defective development of T and B cells resulting from HOIP deficiency in adaptive immunity can explain immunodeficiency, the pathogenesis of autoinflammation is not clear. In this study, we found that dendritic cell (DC)-specific deletion of HOIP resulted in spontaneous inflammation, indicating the essential role of HOIP in maintaining DC homeostasis. Although HOIP deficiency in DCs did not affect TNF-α-induced NF-κB activation, it enhanced TNF-α-induced apoptosis and necroptosis. However, crossing HoipDC KO mice with TNFR1-knockout mice surprisingly could not rescue the systematic inflammation, suggesting that the autoinflammation is not due to the effect of HOIP on TNF-α signaling. In contrast, treatment of HoipDC KO mice with antibiotics reduced the inflammation, implying that TLR signaling may contribute to the inflammatory phenotype found in HoipDC KO mice. Consistently, we found that LPS induced more cell death and significantly higher levels of IL-1α and IL-1β in HoipDC KO cells. Importantly, MyD88 deficiency rescued the inflammatory phenotype in HoipDC KO mice. Together, these findings reveal the indispensable function of HOIP in maintaining DC homeostasis, and MyD88-dependent proinflammatory signal plays a substantial role in the pathogenesis of human autoinflammation associated with HOIP mutations.
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Affiliation(s)
- Xin Wu
- Institute for Immunology, Tsinghua University School of Medicine, Beijing, China; and
| | - Yong Tang
- Institute for Immunology, Tsinghua University School of Medicine, Beijing, China; and
| | - Silin Zhang
- Institute for Immunology, Tsinghua University School of Medicine, Beijing, China; and
| | - Xueqiang Zhao
- Institute for Immunology, Tsinghua University School of Medicine, Beijing, China; and
| | - Xin Lin
- Institute for Immunology, Tsinghua University School of Medicine, Beijing, China; and .,Tsinghua-Peking Center for Life Sciences, Beijing, China
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Cheng W, Yu TT, Tang AP, He Young K, Yu L. Blastic Plasmacytoid Dendritic Cell Neoplasm: Progress in Cell Origin, Molecular Biology, Diagnostic Criteria and Therapeutic Approaches. Curr Med Sci 2021; 41:405-419. [PMID: 34218354 DOI: 10.1007/s11596-021-2393-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 06/23/2021] [Indexed: 12/13/2022]
Abstract
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare hematological malignancy characterized by recurrent skin nodules, an aggressive clinical course with rapid involvement of hematological organs, and a poor prognosis with poor overall survival. BPDCN is derived from plasmacytoid dendritic cells (pDCs) and its pathogenesis is unclear. The tumor cells show aberrant expression of CD4, CD56, interleukin-3 receptor alpha chain (CD123), blood dendritic cell antigen 2 (BDCA 2/CD303), blood dendritic cell antigen 4 (BDCA4) and transcription factor (E protein) E2-2 (TCF4). The best treatment drugs are based on experience by adopting those used for either leukemia or lymphoma. Relapse with drug resistance generally occurs quickly. Stem cell transplantation after the first complete remission is recommended and tagraxofusp is the first targeted therapy. In this review, we summarize the differentiation of BPDCN from its cell origin, its connection with normal pDCs, clinical characteristics, genetic mutations and advances in treatment of BPDCN. This review provides insights into the mechanisms of and new therapeutic approaches for BPDCN.
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Affiliation(s)
- Wei Cheng
- Department of Hematology, the Second Affiliate Hospital of Nanchang University, Nanchang, 330006, China
| | - Tian-Tian Yu
- Department of Hematology, the Second Affiliate Hospital of Nanchang University, Nanchang, 330006, China
| | - Ai-Ping Tang
- Department of Hematology, the Second Affiliate Hospital of Nanchang University, Nanchang, 330006, China
| | - Ken He Young
- Division of Hematopathology and Department of Pathology, Duke University Medical Center, Durham, 27710, USA
| | - Li Yu
- Department of Hematology, the Second Affiliate Hospital of Nanchang University, Nanchang, 330006, China.
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35
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Nagel S, Pommerenke C, Meyer C, Drexler HG. NKL Homeobox Gene VENTX Is Part of a Regulatory Network in Human Conventional Dendritic Cells. Int J Mol Sci 2021; 22:ijms22115902. [PMID: 34072771 PMCID: PMC8198381 DOI: 10.3390/ijms22115902] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/10/2021] [Accepted: 05/27/2021] [Indexed: 01/09/2023] Open
Abstract
Recently, we documented a hematopoietic NKL-code mapping physiological expression patterns of NKL homeobox genes in human myelopoiesis including monocytes and their derived dendritic cells (DCs). Here, we enlarge this map to include normal NKL homeobox gene expressions in progenitor-derived DCs. Analysis of public gene expression profiling and RNA-seq datasets containing plasmacytoid and conventional dendritic cells (pDC and cDC) demonstrated HHEX activity in both entities while cDCs additionally expressed VENTX. The consequent aim of our study was to examine regulation and function of VENTX in DCs. We compared profiling data of VENTX-positive cDC and monocytes with VENTX-negative pDC and common myeloid progenitor entities and revealed several differentially expressed genes encoding transcription factors and pathway components, representing potential VENTX regulators. Screening of RNA-seq data for 100 leukemia/lymphoma cell lines identified prominent VENTX expression in an acute myelomonocytic leukemia cell line, MUTZ-3 containing inv(3)(q21q26) and t(12;22)(p13;q11) and representing a model for DC differentiation studies. Furthermore, extended gene analyses indicated that MUTZ-3 is associated with the subtype cDC2. In addition to analysis of public chromatin immune-precipitation data, subsequent knockdown experiments and modulations of signaling pathways in MUTZ-3 and control cell lines confirmed identified candidate transcription factors CEBPB, ETV6, EVI1, GATA2, IRF2, MN1, SPIB, and SPI1 and the CSF-, NOTCH-, and TNFa-pathways as VENTX regulators. Live-cell imaging analyses of MUTZ-3 cells treated for VENTX knockdown excluded impacts on apoptosis or induced alteration of differentiation-associated cell morphology. In contrast, target gene analysis performed by expression profiling of knockdown-treated MUTZ-3 cells revealed VENTX-mediated activation of several cDC-specific genes including CSFR1, EGR2, and MIR10A and inhibition of pDC-specific genes like RUNX2. Taken together, we added NKL homeobox gene activities for progenitor-derived DCs to the NKL-code, showing that VENTX is expressed in cDCs but not in pDCs and forms part of a cDC-specific gene regulatory network operating in DC differentiation and function.
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Nazitto R, Amon LM, Mast FD, Aitchison JD, Aderem A, Johnson JS, Diercks AH. ILF3 Is a Negative Transcriptional Regulator of Innate Immune Responses and Myeloid Dendritic Cell Maturation. THE JOURNAL OF IMMUNOLOGY 2021; 206:2949-2965. [PMID: 34031149 DOI: 10.4049/jimmunol.2001235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 03/31/2021] [Indexed: 12/31/2022]
Abstract
APCs such as myeloid dendritic cells (DCs) are key sentinels of the innate immune system. In response to pathogen recognition and innate immune stimulation, DCs transition from an immature to a mature state that is characterized by widespread changes in host gene expression, which include the upregulation of cytokines, chemokines, and costimulatory factors to protect against infection. Several transcription factors are known to drive these gene expression changes, but the mechanisms that negatively regulate DC maturation are less well understood. In this study, we identify the transcription factor IL enhancer binding factor 3 (ILF3) as a negative regulator of innate immune responses and DC maturation. Depletion of ILF3 in primary human monocyte-derived DCs led to increased expression of maturation markers and potentiated innate responses during stimulation with viral mimetics or classic innate agonists. Conversely, overexpression of short or long ILF3 isoforms (NF90 and NF110) suppressed DC maturation and innate immune responses. Through mutagenesis experiments, we found that a nuclear localization sequence in ILF3, and not its dual dsRNA-binding domains, was required for this function. Mutation of the domain associated with zinc finger motif of ILF3's NF110 isoform blocked its ability to suppress DC maturation. Moreover, RNA-sequencing analysis indicated that ILF3 regulates genes associated with cholesterol homeostasis in addition to genes associated with DC maturation. Together, our data establish ILF3 as a transcriptional regulator that restrains DC maturation and limits innate immune responses through a mechanism that may intersect with lipid metabolism.
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Affiliation(s)
- Rodolfo Nazitto
- Department of Immunology, University of Washington School of Medicine, Seattle, WA.,Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA
| | - Lynn M Amon
- Center for Infectious Disease Research, Seattle, WA; and
| | - Fred D Mast
- Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA
| | - John D Aitchison
- Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA
| | - Alan Aderem
- Department of Immunology, University of Washington School of Medicine, Seattle, WA.,Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA
| | - Jarrod S Johnson
- Center for Infectious Disease Research, Seattle, WA; and.,Department of Biochemistry, University of Utah, Salt Lake City, UT
| | - Alan H Diercks
- Department of Immunology, University of Washington School of Medicine, Seattle, WA;
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Dolina JS, Lee J, Griswold RQ, Labarta-Bajo L, Kannan S, Greenbaum JA, Bahia El Idrissi N, Pont MJ, Croft M, Schoenberger SP. TLR9 Sensing of Self-DNA Controls Cell-Mediated Immunity to Listeria Infection via Rapid Conversion of Conventional CD4 + T Cells to T reg. Cell Rep 2021; 31:107249. [PMID: 32268093 PMCID: PMC8903023 DOI: 10.1016/j.celrep.2020.01.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 12/02/2019] [Accepted: 01/10/2020] [Indexed: 12/12/2022] Open
Abstract
CD4+ T lymphocytes are crucial for controlling a range of innate and adaptive immune effectors. For CD8+ cytotoxic T lymphocyte (CTL) responses, CD4+ T cells can function as helpers (TH) to amplify magnitude and functionality or as regulatory cells (Treg) capable of profound inhibition. It is unclear what determines differentiation to these phenotypes and whether pathogens provoke alternate programs. We find that, depending on the size of initial dose, Listeria infection drives CD4+ T cells to act as TH or induces rapid polyclonal conversion to immunosuppressive Treg. Conversion to Treg depends on the TLR9 and IL-12 pathways elicited by CD8a+ dendritic cell (DC) sensing of danger-associated neutrophil self-DNA. These findings resolve long-standing questions regarding the conditional requirement for TH amongst pathogens and reveal a remarkable degree of plasticity in the function of CD4+ T cells, which can be quickly converted to Tregin vivo by infection-mediated immune modulation. Dolina et al. show that Listeria infectious dose drives conventional CD4+ T cells to act as TH or mediates conversion to Treg. Differentiation to Treg dominates heightened doses and is promoted by CD8α+ DC TLR9 engagement of neutrophil self-DNA and IL-12 production, revealing plasticity in the function of CD4+ T cells.
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Affiliation(s)
- Joseph S Dolina
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA.
| | - Joey Lee
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Ryan Q Griswold
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Lara Labarta-Bajo
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Section of Molecular Biology, University of California, San Diego, La Jolla, CA 92093, USA
| | - Sumetha Kannan
- Bioinformatics Core, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Jason A Greenbaum
- Bioinformatics Core, La Jolla Institute for Immunology, La Jolla, CA 92037, USA
| | - Nawal Bahia El Idrissi
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Department of Neurogenetics, Academic Medical Center, Amsterdam, the Netherlands
| | - Margot J Pont
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Michael Croft
- Division of Immune Regulation, La Jolla Institute for Immunology, La Jolla, CA 92037, USA; Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Stephen P Schoenberger
- Division of Developmental Immunology, La Jolla Institute for Immunology, La Jolla, CA 92037, USA.
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Matute J, Finander B, Pepin D, Ai X, Smith N, Li J, Edlow A, Villani A, Lerou P, Kalish B. Single-cell immunophenotyping of the fetal immune response to maternal SARS-CoV-2 infection in late gestation. RESEARCH SQUARE 2021:rs.3.rs-311000. [PMID: 33758834 PMCID: PMC7987103 DOI: 10.21203/rs.3.rs-311000/v1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
During the COVID-19 pandemic, thousands of pregnant women have been infected with SARS-CoV-2. The implications of maternal SARS-CoV-2 infection on fetal and childhood well-being are unknown. We aimed to characterize the fetal immune response to maternal SARS-CoV-2 infection. We performed single-cell RNA sequencing and T-cell receptor (TCR) sequencing on cord blood mononuclear cells (CBMC) from newborns of mothers infected with SARS-CoV-2 in the third-trimester (cases) or without SARS-CoV-2 infection. We identified widespread gene expression changes in CBMC from cases, including upregulation of interferon-stimulated genes and Major Histocompatibility Complex genes in CD14 + monocytes; transcriptional changes suggestive of activation of plasmacytoid dendritic cells, and activation and exhaustion of NK cells and CD8 + T-cells. Lastly, we observed fetal TCR repertoire expansion in cases. As none of the infants were infected with SARS-CoV-2, our results suggest that SARS-CoV-2 maternal infection might modulate the fetal immune system in the absence of vertical transmission.
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Affiliation(s)
- Juan Matute
- Massachusetts General Hospital and Harvard Medical School
| | | | | | - Xinbin Ai
- Massachusetts General Hospital and Harvard Medical School
| | - Neal Smith
- Massachusetts General Hospital and Harvard Medical School
| | | | - Andrea Edlow
- Massachusetts General Hospital and Harvard Medical School
| | | | - Paul Lerou
- Massachusetts General Hospital and Harvard Medical School
| | - Brian Kalish
- The Hospital for Sick Children and University of Toronto
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Smita S, Ghosh A, Biswas VK, Ahad A, Podder S, Jha A, Sen K, Acha-Orbea H, Raghav SK. Zbtb10 transcription factor is crucial for murine cDC1 activation and cytokine secretion. Eur J Immunol 2021; 51:1126-1142. [PMID: 33527393 DOI: 10.1002/eji.202048933] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 11/14/2020] [Accepted: 01/28/2021] [Indexed: 12/14/2022]
Abstract
Dendritic cell (DC) activation and cytokine production is tightly regulated. In this study, we found that Zbtb10 expression is activation dependent and it is essential for the immunogenic function of cDC1. Zbtb10 knockdown (KD) significantly reduced the expression of co-stimulatory genes CD80 and CD86 along with cytokines including IL-12, IL-6, and IL-10, in activated cDC1 Mutu-DC line. Consequently, the clonal expansion of CD44+ effector T cells in co-cultured CD4+ T cells was drastically reduced owing to significantly reduced IL-2. At the same time, these CD44+ effector T cells were unable to differentiate toward Tbet+ IFNγ+ Th1 subtype. Instead, an increased frequency of Th2 cells expressing GATA3+ and IL-13+ was observed. Interestingly, in Zbtb10 KD condition the co-cultured T cells depicted increased expression of PD1 and LAG3, the T-cell anergic markers. Moreover, the global transcriptome analysis identified that Zbtb10 is pertinent for DC activation and its depletion in cDC1 completely shuts down their immune responses. Mechanistic analysis revealed that Zbtb10 KD enhanced the expression of NKRF (NF-κB repressing factor) leading to drastic suppression of NF-κB related genes. Zbtb10 KD abrogated p65 and RelB nuclear translocation, thereby controlling the activation and maturation of cDC1 and the ensuing adaptive T cell responses.
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Affiliation(s)
- Shuchi Smita
- Immuno-genomics & Systems Biology group, Institute of Life Sciences, Bhubaneswar, India.,Department of Biotechnology, Manipal Academy of Higher Education, Manipal, India
| | - Arup Ghosh
- Immuno-genomics & Systems Biology group, Institute of Life Sciences, Bhubaneswar, India.,Department of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Bhubaneswar, India
| | - Viplov Kumar Biswas
- Immuno-genomics & Systems Biology group, Institute of Life Sciences, Bhubaneswar, India.,Department of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Bhubaneswar, India
| | - Abdul Ahad
- Immuno-genomics & Systems Biology group, Institute of Life Sciences, Bhubaneswar, India.,Department of Biotechnology, Manipal Academy of Higher Education, Manipal, India
| | - Sreeparna Podder
- Immuno-genomics & Systems Biology group, Institute of Life Sciences, Bhubaneswar, India.,Department of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Bhubaneswar, India
| | - Atimukta Jha
- Immuno-genomics & Systems Biology group, Institute of Life Sciences, Bhubaneswar, India.,Department of Biotechnology, Manipal Academy of Higher Education, Manipal, India
| | - Kaushik Sen
- Immuno-genomics & Systems Biology group, Institute of Life Sciences, Bhubaneswar, India.,Regional Centre for Biotechnology, Faridabad, Haryana, India
| | - Hans Acha-Orbea
- Department of Biochemistry CIIL, University of Lausanne (UNIL), Epalinges, Switzerland
| | - Sunil K Raghav
- Immuno-genomics & Systems Biology group, Institute of Life Sciences, Bhubaneswar, India.,Department of Biotechnology, Manipal Academy of Higher Education, Manipal, India.,Department of Biotechnology, Kalinga Institute of Industrial Technology (KIIT), Bhubaneswar, India
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Monteiro AC, Bonomo A. Dendritic cells development into osteoclast-type APCs by 4T1 breast tumor T cells milieu boost bone consumption. Bone 2021; 143:115755. [PMID: 33217627 DOI: 10.1016/j.bone.2020.115755] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 11/09/2020] [Accepted: 11/11/2020] [Indexed: 12/23/2022]
Abstract
Bone metastases occur in 70% of patients with advanced breast cancer, causing severe morbidity and increased mortality due to osteolytic lesions driven by osteoclasts (OCs) inside the bone marrow (BM) microenvironment. A reciprocal vicious cycle between bone remodeling system and the tumor itself is established by the release of growth factors stored in the mineralized matrix, which in turn feed the tumor, changing tumor behavior and growth. However, BM is not a passive host microenvironment for circulating tumor cells, but instead can be actively modified by the primary tumor before metastatic spread occurs. Indeed, we have shown that T cells specific for the 4T1 mammary carcinoma cell line, are characteristically RANKL+ IL-17F+ CD4+ T cells. Those cells arrive in the BM before metastatic cells and set the pre-metastatic niche. In the absence of T cell derived RANKL, there is no pre-metastatic osteolytic disease and bone metastases do not take place. Recently, dendritic cells (DCs), the main T cell partner at the beginning of the immune response, came into the spotlight as a potential source of OCs progenitors under inflammatory conditions. Regarding bone metastasis, nothing is currently known about DCs plasticity or even its partnership with tumor induced T cells for BM pre-metastatic niche formation. Here, we show that splenic CD11c+ DCs stimulated with 4T1 conditioned media (CM) efficiently differentiated into mature and activated multinucleated giant cells (DC-OC) expressing TRAP and IL-23 cytokine. More important, 4T1 CM derived DC-OCs build a positive loop which amplifies the osteolytic phenomena by maintaining the RANKL+ Th17 T cells and by its own osteoclastic activity. In conclusion, our results indicate that differentiation of OCs from DCs may be achievable in the bone pre osteolytic disease context representing an alternative OC differentiation pathway. Besides being induced by high levels of T cells pro osteoclastogenic cytokines, especially by RANKL, DC-OC keep a positive feedback loop towards osteolysis, maintaining the pro-osteoclastogenic T cell phenotype in the BM.
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Affiliation(s)
- Ana Carolina Monteiro
- Laboratory of Osteo and Tumor Immunology, Department of Immunobiology, Fluminense Federal University, Rio de Janeiro, Brazil; Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.
| | - Adriana Bonomo
- Laboratory on Thymus Research, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil; National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil; Research Network on Neuroinflammation (RENEURIN), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.
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Cannatella J, Ganapathi K, Horvai A. Hematolymphoid Neoplasms Rarely Mimic Undifferentiated Pleomorphic Sarcoma of Soft Tissue. Arch Pathol Lab Med 2021; 144:1547-1552. [PMID: 32167380 DOI: 10.5858/arpa.2019-0580-oa] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/28/2020] [Indexed: 11/06/2022]
Abstract
CONTEXT.— Undifferentiated pleomorphic sarcoma (UPS) of soft tissue is defined as a sarcoma with no recognizable line of differentiation. During the past few decades, advances in ancillary studies and review of prior UPS diagnoses have narrowed the category of UPS by excluding more-specific malignancies. However, few of those studies have specifically targeted pleomorphic hematolymphoid neoplasms. OBJECTIVE.— To determine what fraction of UPS cases are misclassified pleomorphic hematolymphoid neoplasms, such as anaplastic large cell lymphoma, diffuse large B-cell lymphoma, histiocytic sarcoma (HS), myeloid sarcoma, and follicular dendritic cell sarcoma. DESIGN.— Sixty-one UPS cases were screened by tissue microarray and an immunostain panel with subsequent analysis on whole block sections for suspicious cases. RESULTS.— Five of 61 tumors (8%) were suggestive of HS based on the screening panel and were further evaluated with additional immunostains (PU.1, CD45, CD163) using whole sections. The 5 candidate HS cases were only focally positive for at most one stain with most staining in smaller, less-pleomorphic cells. Ultimately, no UPS met criteria for anaplastic large cell lymphoma, diffuse large B-cell lymphoma, myeloid sarcoma, follicular dendritic cell sarcoma, or HS. CONCLUSIONS.— Our results suggest that a UPS of somatic soft tissue is unlikely to represent a misclassified hematopoietic malignancy. Exclusion of HS is most challenging, but immunostaining for PU.1, a nuclear transcription factor, may be easier to interpret in this context.
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Affiliation(s)
- John Cannatella
- From the Department of Pathology (Cannatella, Horvai), University of California, San Francisco, San Francisco.,Cannatella is now with the Department of Pathology, University of Arkansas for Medical Sciences, Little Rock
| | - Karthik Ganapathi
- Department of Laboratory Medicine (Ganapathi), University of California, San Francisco, San Francisco
| | - Andrew Horvai
- From the Department of Pathology (Cannatella, Horvai), University of California, San Francisco, San Francisco
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Audiger C, Lesage S. FLT3 Ligand Is Dispensable for the Final Stage of Type 1 Conventional Dendritic Cell Differentiation. THE JOURNAL OF IMMUNOLOGY 2020; 205:2117-2127. [PMID: 32887750 DOI: 10.4049/jimmunol.2000742] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/10/2020] [Indexed: 12/29/2022]
Abstract
Conventional dendritic cells (cDCs) are comprised of two major subsets, type 1 cDC (cDC1) and type 2 cDC (cDC2). As each cDC subset differentially influences the nature of immune responses, we sought factors that would allow the manipulation of their relative abundance. Notably, cDC1 are less abundant than cDC2 in both lymphoid and nonlymphoid organs. We demonstrate that this bias is already apparent in bone marrow precommitted precursors. However, comparison of five common inbred strains revealed a disparity in precursor-product relationship, in which mice with fewer precursors to cDC1 had more cDC1. This disparity associated with contrasting variations in CD135 (FLT3) expression on cDC subsets. Hence, we characterized the response to FLT3 ligand during cDC1 and cDC2 lineage differentiation and find that although FLT3 ligand is required throughout cDC2 differentiation, it is surprisingly dispensable during late-stage cDC1 differentiation. Overall, we find that tight regulation of FLT3 ligand levels throughout cDC differentiation dictates the cDC1 to cDC2 ratio in lymphoid organs.
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Affiliation(s)
- Cindy Audiger
- Department of Immunology-Oncology, Maisonneuve-Rosemont Hospital, Montreal, Quebec H1T 2M4, Canada; and Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
| | - Sylvie Lesage
- Department of Immunology-Oncology, Maisonneuve-Rosemont Hospital, Montreal, Quebec H1T 2M4, Canada; and Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, Quebec H3C 3J7, Canada
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Popović J, Wellstein I, Pernis A, Jessberger R, Ocaña-Morgner C. Control of GM-CSF-Dependent Dendritic Cell Differentiation and Maturation by DEF6 and SWAP-70. THE JOURNAL OF IMMUNOLOGY 2020; 205:1306-1317. [PMID: 32709659 DOI: 10.4049/jimmunol.2000020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 06/30/2020] [Indexed: 11/19/2022]
Abstract
Although GM-CSF has been widely used in dendritic cell (DC) research, the mechanisms, factors, and signals regulating steady-state differentiation and maturation of GM-CSF-dependent DCs are insufficiently known. We found that the absence, individually or combined, of the related proteins DEF6 and SWAP-70 strongly enhances differentiation of murine GM-CSF-derived DCs. Contrasting SWAP-70, control through DEF6 does not depend on RHOA activation. DEF6 deficiency leads to expression of the DC-specific transcription factor ZBTB46 and prolonged STAT5 activation in GM-CSF cultures. SWAP-70 and DEF6-mediated restriction of DC differentiation converges mechanistically at the NF-κB pathway. DEF6 acts at early stages of DC differentiation in CD115-cKIT+ myeloid DC progenitors, whereas SWAP-70 acts subsequently. SWAP-70 and DEF6 regulate steady-state DC cytokine expression as well as in vivo accumulation in lymphatic tissue of migratory DCs. Our studies thus elucidate previously unknown roles of two closely related factors with distinct and complementary activities in DC differentiation and steady-state DC function.
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Affiliation(s)
- Jelena Popović
- Institut für Physiologische Chemie, Medizinische Fakultät Carl Gustav Carus, Technische Unversität Dresden, D-01307 Dresden, Germany; and
| | - Inga Wellstein
- Institut für Physiologische Chemie, Medizinische Fakultät Carl Gustav Carus, Technische Unversität Dresden, D-01307 Dresden, Germany; and
| | - Alessandra Pernis
- Autoimmunity and Inflammation Program, Hospital for Special Surgery, New York, NY 10021
| | - Rolf Jessberger
- Institut für Physiologische Chemie, Medizinische Fakultät Carl Gustav Carus, Technische Unversität Dresden, D-01307 Dresden, Germany; and
| | - Carlos Ocaña-Morgner
- Institut für Physiologische Chemie, Medizinische Fakultät Carl Gustav Carus, Technische Unversität Dresden, D-01307 Dresden, Germany; and
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Protection and immune modulation of activated human vaginal epithelial cells by Aurea helianthus extract. Sci Rep 2020; 10:9227. [PMID: 32513981 PMCID: PMC7280265 DOI: 10.1038/s41598-020-65821-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 02/25/2020] [Indexed: 11/08/2022] Open
Abstract
Aurea helianthus extract is associated with various properties including anti-melanogenesis, anti-oxidation, tumorigenic suppression, and immunoregulation; however, the mechanism by which it executes the immunomodulation of human vaginal epithelial cells (HVECs) remains elusive. We established three immunological functions of the extract. First, it mediated tumorigenic suppression in HVECs. Expression of cytokeratin 8, cancer antigen-125, and vimentin was dramatically downregulated in HVECs exposed to the extract under oxidative and fungal stresses. Second, the extract activated dendritic cells and macrophages. On exposing progenitor dendritic cells to the extract, the number of CD304+ cells increased by 40%; further, under oxidative and fungal stresses, this number was approximately 1.8 and 1.3 times lower, respectively, compared to that in the stressed cells. In monocytic differentiation, the number of dendritic cells and macrophages increased 9 and 6 times, respectively, compared to that in the control. Additionally, the extract enhanced and recovered polarisation by approximately 1.5 and 2 times, respectively, than that under stressed conditions. Third, the phagocytic activity of macrophages, against HPV16, 18, and 33 peptides, was enhanced by 12–35 times compared with that under stressed conditions. Thus, A. helianthus extract is a strong stimulator of the immune system and tumorigenic suppression under stress conditions.
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Legitimo A, Bertini V, Costagliola G, Baroncelli GI, Morganti R, Valetto A, Consolini R. Vitamin D status and the immune assessment in 22q11.2 deletion syndrome. Clin Exp Immunol 2020; 200:272-286. [PMID: 32149392 PMCID: PMC7231997 DOI: 10.1111/cei.13429] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/19/2020] [Accepted: 03/05/2020] [Indexed: 02/06/2023] Open
Abstract
22q11.2 deletion syndrome (22q11.2DS) is characterized by a heterogeneous phenotype, including alterations in phospho-calcium metabolism and immunodeficiency. We analyzed vitamin D status and the immune assessment, focusing on T cell subpopulations and dendritic cells (DCs) in a cohort of 17 pediatric 22q11.2DS patients and 17 age-matched healthy subjects. As antigen-presenting cells, DCs are the main target of vitamin D, promoting a tolerogenic T cell response. Patients were subdivided into three groups according to the parameters of phospho-calcium metabolism and serum levels of 25OHD: normal values, vitamin D deficiency and hypoparathyroidism. Different degrees of T cell deficiency, ranging from normal to partial T cell numbers, were observed in the cohort of patients. The group with vitamin D deficiency showed a significant reduction of naive T cells and a significant increase of central memory T cells compared to controls. In this group the number of circulating DCs was significantly reduced. DC decrease affected both myeloid and plasmacytoid DC subsets (mDCs and pDCs), with the most relevant reduction involving pDCs. A direct correlation between 25OHD levels and recent thymic emigrant (RTE) and DC number was identified. Despite the limited cohort analyzed, our results show that deficiency of the pDC subset in patients with 22q11.2DS may be included among the causative factors of the progressive increase of risk of autoimmune diseases in these patients. As most patients suffer from increased susceptibility to infections and heightened prevalence of autoimmune disorders, we suggest a potential role of vitamin D supplementation in preventing autoimmune or proinflammatory diseases in 22q11.2DS.
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Affiliation(s)
- A. Legitimo
- Department of Clinical and Experimental Medicine, Section of PediatricsUniversity of PisaPisaItaly
| | - V. Bertini
- Department of Medicine of Laboratory, Section of CytogeneticsAzienda Ospedaliero Universitaria PisanaPisaItaly
| | - G. Costagliola
- Department of Clinical and Experimental Medicine, Section of PediatricsUniversity of PisaPisaItaly
| | - G. I. Baroncelli
- Department of Clinical and Experimental Medicine, Section of PediatricsAzienda Ospedaliero Universitaria PisanaPisaItaly
| | - R. Morganti
- Section of StatisticsAzienda Ospedaliero Universitaria PisanaPisaItaly
| | - A. Valetto
- Department of Medicine of Laboratory, Section of CytogeneticsAzienda Ospedaliero Universitaria PisanaPisaItaly
| | - R. Consolini
- Department of Clinical and Experimental Medicine, Section of PediatricsUniversity of PisaPisaItaly
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TNFα Rescues Dendritic Cell Development in Hematopoietic Stem and Progenitor Cells Lacking C/EBPα. Cells 2020; 9:cells9051223. [PMID: 32429067 PMCID: PMC7291045 DOI: 10.3390/cells9051223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 05/04/2020] [Accepted: 05/14/2020] [Indexed: 11/16/2022] Open
Abstract
Dendritic cells (DCs) are crucial effectors of the immune system, which are formed from hematopoietic stem and progenitor cells (HSPCs) by a multistep process regulated by cytokines and distinct transcriptional mechanisms. C/EBPα is an important myeloid transcription factor, but its role in DC formation is not well defined. Using a CebpaCre-EYFP reporter mouse model, we show that the majority of splenic conventional DCs are derived from Cebpa-expressing HSPCs. Furthermore, HSPCs isolated from Cebpa knockout (KO) mice exhibited a marked reduced ability to form mature DCs after in vitro culture with FLT3L. Differentiation analysis revealed that C/EBPα was needed for the formation of monocytic dendritic progenitors and their transition to common dendritic progenitors. Gene expression analysis and cytokine profiling of culture supernatants showed significant downregulation of inflammatory cytokines, including TNFα and IL-1β as well as distinct chemokines in KO HSPCs. In addition, TNFα-induced genes were among the most dysregulated genes in KO HSPCs. Intriguingly, supplementation of in vitro cultures with TNFα at least partially rescued DC formation of KO HSPCs, resulting in fully functional, mature DCs. In conclusion, these results reveal an important role of C/EBPα in early DC development, which in part can be substituted by the inflammatory cytokine TNFα.
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Saha I, Jaiswal H, Mishra R, Nel HJ, Schreuder J, Kaushik M, Singh Chauhan K, Singh Rawat B, Thomas R, Naik S, Kumar H, Tailor P. RelB suppresses type I Interferon signaling in dendritic cells. Cell Immunol 2020; 349:104043. [PMID: 32044112 DOI: 10.1016/j.cellimm.2020.104043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 12/23/2019] [Accepted: 01/10/2020] [Indexed: 10/25/2022]
Abstract
Type I Interferon (IFN) signaling plays a critical role in dendritic cell (DC) development and functions. Inhibition of hyper type I IFN signaling promotes cDC2 subtype development. Relb is essential to development of cDC2 subtype and here we analyzed its effect on type I IFN signaling in DCs. We show that Relb suppresses the homeostatic type I IFN signaling in cDC2 cultures. TLR stimulation of FL-DCs led to RelB induction coinciding with fall in IFN signatures; conforming with the observation Relb expression reduced TLR stimulated IFN induction along with decrease in ISGs. Towards understanding mechanism, we show that effects of RelB are mediated by increased levels of IκBα. We demonstrate that RelB dampened antiviral responses by lowering ISG levels and the defect in cDC2 development in RelB null mice can be rescued in Ifnar1-/- background. Overall, we propose a novel role of RelB as a negative regulator of the type I IFN signaling pathway; fine tuning development of cDC2 subtype.
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Affiliation(s)
- Irene Saha
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India
| | - Hemant Jaiswal
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India
| | - Richa Mishra
- Department of Biological Sciences, Laboratory of Immunology and Infectious Disease Biology, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal 462066, India
| | - Hendrik J Nel
- The University of Queensland Diamantina Institute, Faculty of Medicine, Princess Alexandra Hospital, Woolloongabba, Australia
| | - Jaring Schreuder
- Molecular Medicine Division, Walter and Eliza Hall Institute, Parkville, VIC 3052, Australia
| | - Monika Kaushik
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India
| | | | | | - Ranjeny Thomas
- The University of Queensland Diamantina Institute, Faculty of Medicine, Princess Alexandra Hospital, Woolloongabba, Australia
| | - Shalin Naik
- Molecular Medicine Division, Walter and Eliza Hall Institute, Parkville, VIC 3052, Australia
| | - Himanshu Kumar
- Department of Biological Sciences, Laboratory of Immunology and Infectious Disease Biology, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal 462066, India
| | - Prafullakumar Tailor
- Laboratory of Innate Immunity, National Institute of Immunology, New Delhi, India.
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Csumita M, Csermely A, Horvath A, Nagy G, Monori F, Göczi L, Orbea HA, Reith W, Széles L. Specific enhancer selection by IRF3, IRF5 and IRF9 is determined by ISRE half-sites, 5' and 3' flanking bases, collaborating transcription factors and the chromatin environment in a combinatorial fashion. Nucleic Acids Res 2020; 48:589-604. [PMID: 31799619 PMCID: PMC6954429 DOI: 10.1093/nar/gkz1112] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 10/22/2019] [Accepted: 11/12/2019] [Indexed: 12/28/2022] Open
Abstract
IRF3, IRF5 and IRF9 are transcription factors, which play distinct roles in the regulation of antiviral and inflammatory responses. The determinants that mediate IRF-specific enhancer selection are not fully understood. To uncover regions occupied predominantly by IRF3, IRF5 or IRF9, we performed ChIP-seq experiments in activated murine dendritic cells. The identified regions were analysed with respect to the enrichment of DNA motifs, the interferon-stimulated response element (ISRE) and ISRE half-site variants, and chromatin accessibility. Using a machine learning method, we investigated the predictability of IRF-dominance. We found that IRF5-dominant regions differed fundamentally from the IRF3- and IRF9-dominant regions: ISREs were rare, while the NFKB motif and special ISRE half-sites, such as 5'-GAGA-3' and 5'-GACA-3', were enriched. IRF3- and IRF9-dominant regions were characterized by the enriched ISRE motif and lower frequency of accessible chromatin. Enrichment analysis and the machine learning method uncovered the features that favour IRF3 or IRF9 dominancy (e.g. a tripartite form of ISRE and motifs for NF-κB for IRF3, and the GAS motif and certain ISRE variants for IRF9). This study contributes to our understanding of how IRF members, which bind overlapping sets of DNA sequences, can initiate signal-dependent responses without activating superfluous or harmful programmes.
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Affiliation(s)
- Mária Csumita
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen H-4032, Hungary
| | - Attila Csermely
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen H-4032, Hungary
| | - Attila Horvath
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen H-4032, Hungary
| | - Gergely Nagy
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen H-4032, Hungary
| | - Fanny Monori
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen H-4032, Hungary
| | - Loránd Göczi
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen H-4032, Hungary
| | - Hans-Acha Orbea
- Department of Biochemistry, University of Lausanne, CH-1066 Epalinges, Switzerland
| | - Walter Reith
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Centre Médical Universitaire (CMU), CH-1211 Geneva, Switzerland
| | - Lajos Széles
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Debrecen, Debrecen H-4032, Hungary
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Debrecen H-4032, Hungary
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Toyoda I, Vernau W, Sturges BK, Vernau KM, Rossmeisl J, Zimmerman K, Crowe CM, Woolard K, Giuffrida M, Higgins RJ, Dickinson PJ. Clinicopathological characteristics of histiocytic sarcoma affecting the central nervous system in dogs. J Vet Intern Med 2020; 34:828-837. [PMID: 31919895 PMCID: PMC7096655 DOI: 10.1111/jvim.15673] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 11/14/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Histiocytic sarcoma affecting the central nervous system (CNS HS) in dogs may present as primary or disseminated disease, often characterized by inflammation. Prognosis is poor, and imaging differentiation from other CNS tumors can be problematic. OBJECTIVE To characterize the clinicopathological inflammatory features, breed predisposition, and survival in dogs with CNS HS. ANIMALS One hundred two dogs with HS, 62 dogs with meningioma. METHODS Retrospective case series. Records were reviewed for results of cerebrospinal fluid (CSF) analysis, CBC, treatment, and outcome data. RESULTS Predisposition for CNS HS was seen in Bernese Mountain Dogs, Golden Retrievers, Rottweilers, Corgis, and Shetland Sheepdogs (P ≤ .001). Corgis and Shetland Sheepdogs had predominantly primary tumors; Rottweilers had exclusively disseminated tumors. Marked CSF inflammation was characteristic of primary rather than disseminated HS, and neoplastic cells were detected in CSF of 52% of affected dogs. Increased neutrophil to lymphocyte ratios were seen in all groups relative to controls (P <.008) but not among tumor subtypes. Definitive versus palliative treatment resulted in improved survival times (P < .001), but overall prognosis was poor. CONCLUSIONS AND CLINICAL IMPORTANCE Clinicopathological differences between primary and disseminated HS suggest that tumor biological behavior and origin may be different. Corgis and Shetland Sheepdogs are predisposed to primary CNS HS, characterized by inflammatory CSF. High total nucleated cell count and the presence of neoplastic cells support the use of CSF analysis as a valuable diagnostic test. Prognosis for CNS HS is poor, but further evaluation of inflammatory mechanisms may provide novel therapeutic opportunities.
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Affiliation(s)
- Izumi Toyoda
- Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California-Davis, Davis, California
| | - William Vernau
- Department of Pathology, Microbiology and Immunology, University of California Davis, School of Veterinary Medicine, Davis, California
| | - Beverly K Sturges
- Department of Surgical and Radiological Sciences, University of California Davis, School of Veterinary Medicine, Davis, California
| | - Karen M Vernau
- Department of Surgical and Radiological Sciences, University of California Davis, School of Veterinary Medicine, Davis, California
| | - John Rossmeisl
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia
| | - Kurt Zimmerman
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Blacksburg, Virginia
| | - Chelsea M Crowe
- Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California-Davis, Davis, California
| | - Kevin Woolard
- Department of Pathology, Microbiology and Immunology, University of California Davis, School of Veterinary Medicine, Davis, California
| | - Michelle Giuffrida
- Department of Surgical and Radiological Sciences, University of California Davis, School of Veterinary Medicine, Davis, California
| | - Robert J Higgins
- Department of Pathology, Microbiology and Immunology, University of California Davis, School of Veterinary Medicine, Davis, California
| | - Peter J Dickinson
- Department of Surgical and Radiological Sciences, University of California Davis, School of Veterinary Medicine, Davis, California
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Gulubova M. Myeloid and Plasmacytoid Dendritic Cells and Cancer - New Insights. Open Access Maced J Med Sci 2019; 7:3324-3340. [PMID: 31949539 PMCID: PMC6953922 DOI: 10.3889/oamjms.2019.735] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 08/21/2019] [Accepted: 08/22/2019] [Indexed: 02/06/2023] Open
Abstract
Dendritic cells (DCs) use effective mechanisms to combat antigens and to bring about adaptive immune responses through their ability to stimulate näive T cells. At present, four major cell types are categorised as DCs: Classical or conventional (cDCs), Plasmacytoid (pDCs), Langerhans cells (LCs), and monocyte-derived DCs (Mo-DCs). It was suggested that pDCs, CD1c+ DCs and CD141+ DCs in humans are equivalent to mouse pDCs, CD11b+ DCs and CD8α+ DCs, respectively. Human CD141+ DCs compared to mouse CD8α+ DCs have remarkable functional and transcriptomic similarities. Characteristic markers, transcription factors, toll-like receptors, T helpers (Th) polarisation, cytokines, etc. of DCs are discussed in this review. Major histocompatibility complex (MHC) I and II antigen presentation, cross-presentation and Th polarisation are defined, and the dual role of DCs in the tumour is discussed. Human DCs are the main immune cells that orchestrate the immune response in the tumour microenvironment.
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Affiliation(s)
- Maya Gulubova
- Department of General and Clinical Pathology, Medical Faculty, Trakia University, Stara Zagora, Bulgaria
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